Chris@79: (* Chris@79: DO NOT EDIT THIS FILE. Chris@79: This file is automatically generated from the individual Chris@79: source files in the Repoint repository. Chris@79: *) Chris@79: Chris@79: (* Chris@79: Repoint Chris@79: Chris@79: A simple manager for third-party source code dependencies Chris@79: Chris@79: Copyright 2018 Chris Cannam, Particular Programs Ltd, Chris@79: and Queen Mary, University of London Chris@79: Chris@79: Permission is hereby granted, free of charge, to any person Chris@79: obtaining a copy of this software and associated documentation Chris@79: files (the "Software"), to deal in the Software without Chris@79: restriction, including without limitation the rights to use, copy, Chris@79: modify, merge, publish, distribute, sublicense, and/or sell copies Chris@79: of the Software, and to permit persons to whom the Software is Chris@79: furnished to do so, subject to the following conditions: Chris@79: Chris@79: The above copyright notice and this permission notice shall be Chris@79: included in all copies or substantial portions of the Software. Chris@79: Chris@79: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, Chris@79: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF Chris@79: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND Chris@79: NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR Chris@79: ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF Chris@79: CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION Chris@79: WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Chris@79: Chris@79: Except as contained in this notice, the names of Chris Cannam, Chris@79: Particular Programs Ltd, and Queen Mary, University of London Chris@79: shall not be used in advertising or otherwise to promote the sale, Chris@79: use or other dealings in this Software without prior written Chris@79: authorization. Chris@79: *) Chris@79: Chris@79: val repoint_version = "1.1" Chris@79: Chris@79: Chris@79: datatype vcs = Chris@79: HG | Chris@79: GIT | Chris@79: SVN Chris@79: Chris@79: datatype source = Chris@79: URL_SOURCE of string | Chris@79: SERVICE_SOURCE of { Chris@79: service : string, Chris@79: owner : string option, Chris@79: repo : string option Chris@79: } Chris@79: Chris@79: type id_or_tag = string Chris@79: Chris@79: datatype pin = Chris@79: UNPINNED | Chris@79: PINNED of id_or_tag Chris@79: Chris@79: datatype libstate = Chris@79: ABSENT | Chris@79: CORRECT | Chris@79: SUPERSEDED | Chris@79: WRONG Chris@79: Chris@79: datatype localstate = Chris@79: MODIFIED | Chris@79: LOCK_MISMATCHED | Chris@79: CLEAN Chris@79: Chris@79: datatype branch = Chris@79: BRANCH of string | Chris@79: DEFAULT_BRANCH Chris@79: Chris@79: (* If we can recover from an error, for example by reporting failure Chris@79: for this one thing and going on to the next thing, then the error Chris@79: should usually be returned through a result type rather than an Chris@79: exception. *) Chris@79: Chris@79: datatype 'a result = Chris@79: OK of 'a | Chris@79: ERROR of string Chris@79: Chris@79: type libname = string Chris@79: Chris@79: type libspec = { Chris@79: libname : libname, Chris@79: vcs : vcs, Chris@79: source : source, Chris@79: branch : branch, Chris@79: project_pin : pin, Chris@79: lock_pin : pin Chris@79: } Chris@79: Chris@79: type lock = { Chris@79: libname : libname, Chris@79: id_or_tag : id_or_tag Chris@79: } Chris@79: Chris@79: type remote_spec = { Chris@79: anon : string option, Chris@79: auth : string option Chris@79: } Chris@79: Chris@79: type provider = { Chris@79: service : string, Chris@79: supports : vcs list, Chris@79: remote_spec : remote_spec Chris@79: } Chris@79: Chris@79: type account = { Chris@79: service : string, Chris@79: login : string Chris@79: } Chris@79: Chris@79: type context = { Chris@79: rootpath : string, Chris@79: extdir : string, Chris@79: providers : provider list, Chris@79: accounts : account list Chris@79: } Chris@79: Chris@79: type userconfig = { Chris@79: providers : provider list, Chris@79: accounts : account list Chris@79: } Chris@79: Chris@79: type project = { Chris@79: context : context, Chris@79: libs : libspec list Chris@79: } Chris@79: Chris@79: structure RepointFilenames = struct Chris@79: val project_file = "repoint-project.json" Chris@79: val project_lock_file = "repoint-lock.json" Chris@79: val project_completion_file = ".repoint.point" Chris@79: val user_config_file = ".repoint.json" Chris@79: val archive_dir = ".repoint-archive" Chris@79: end Chris@79: Chris@79: signature VCS_CONTROL = sig Chris@79: Chris@79: (** Check whether the given VCS is installed and working *) Chris@79: val is_working : context -> bool result Chris@79: Chris@79: (** Test whether the library is present locally at all *) Chris@79: val exists : context -> libname -> bool result Chris@79: Chris@79: (** Return the id (hash) of the current revision for the library *) Chris@79: val id_of : context -> libname -> id_or_tag result Chris@79: Chris@79: (** Test whether the library is at the given id *) Chris@79: val is_at : context -> libname * id_or_tag -> bool result Chris@79: Chris@79: (** Test whether the library is on the given branch, i.e. is at Chris@79: the branch tip or an ancestor of it *) Chris@79: val is_on_branch : context -> libname * branch -> bool result Chris@79: Chris@79: (** Test whether the library is at the newest revision for the Chris@79: given branch. False may indicate that the branch has advanced Chris@79: or that the library is not on the branch at all. This function Chris@79: may use the network to check for new revisions *) Chris@79: val is_newest : context -> libname * source * branch -> bool result Chris@79: Chris@79: (** Test whether the library is at the newest revision available Chris@79: locally for the given branch. False may indicate that the Chris@79: branch has advanced or that the library is not on the branch Chris@79: at all. This function must not use the network *) Chris@79: val is_newest_locally : context -> libname * branch -> bool result Chris@79: Chris@79: (** Test whether the library has been modified in the local Chris@79: working copy *) Chris@79: val is_modified_locally : context -> libname -> bool result Chris@79: Chris@79: (** Check out, i.e. clone a fresh copy of, the repo for the given Chris@79: library on the given branch *) Chris@79: val checkout : context -> libname * source * branch -> unit result Chris@79: Chris@79: (** Update the library to the given branch tip. Assumes that a Chris@79: local copy of the library already exists *) Chris@79: val update : context -> libname * source * branch -> unit result Chris@79: Chris@79: (** Update the library to the given specific id or tag *) Chris@79: val update_to : context -> libname * source * id_or_tag -> unit result Chris@79: Chris@79: (** Return a URL from which the library can be cloned, given that Chris@79: the local copy already exists. For a DVCS this can be the Chris@79: local copy, but for a centralised VCS it will have to be the Chris@79: remote repository URL. Used for archiving *) Chris@79: val copy_url_for : context -> libname -> string result Chris@79: end Chris@79: Chris@79: signature LIB_CONTROL = sig Chris@79: val review : context -> libspec -> (libstate * localstate) result Chris@79: val status : context -> libspec -> (libstate * localstate) result Chris@79: val update : context -> libspec -> unit result Chris@79: val id_of : context -> libspec -> id_or_tag result Chris@79: val is_working : context -> vcs -> bool result Chris@79: end Chris@79: Chris@79: structure FileBits :> sig Chris@79: val extpath : context -> string Chris@79: val libpath : context -> libname -> string Chris@79: val subpath : context -> libname -> string -> string Chris@79: val command_output : context -> libname -> string list -> string result Chris@79: val command : context -> libname -> string list -> unit result Chris@79: val file_url : string -> string Chris@79: val file_contents : string -> string Chris@79: val mydir : unit -> string Chris@79: val homedir : unit -> string Chris@79: val mkpath : string -> unit result Chris@79: val rmpath : string -> unit result Chris@79: val nonempty_dir_exists : string -> bool Chris@79: val project_spec_path : string -> string Chris@79: val project_lock_path : string -> string Chris@79: val project_completion_path : string -> string Chris@79: val verbose : unit -> bool Chris@79: end = struct Chris@79: Chris@79: fun verbose () = Chris@79: case OS.Process.getEnv "REPOINT_VERBOSE" of Chris@79: SOME "0" => false Chris@79: | SOME _ => true Chris@79: | NONE => false Chris@79: Chris@79: fun split_relative path desc = Chris@79: case OS.Path.fromString path of Chris@79: { isAbs = true, ... } => raise Fail (desc ^ " may not be absolute") Chris@79: | { arcs, ... } => arcs Chris@79: Chris@79: fun extpath ({ rootpath, extdir, ... } : context) = Chris@79: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@79: in OS.Path.toString { Chris@79: isAbs = isAbs, Chris@79: vol = vol, Chris@79: arcs = arcs @ Chris@79: split_relative extdir "extdir" Chris@79: } Chris@79: end Chris@79: Chris@79: fun subpath ({ rootpath, extdir, ... } : context) libname remainder = Chris@79: (* NB libname is allowed to be a path fragment, e.g. foo/bar *) Chris@79: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@79: in OS.Path.toString { Chris@79: isAbs = isAbs, Chris@79: vol = vol, Chris@79: arcs = arcs @ Chris@79: split_relative extdir "extdir" @ Chris@79: split_relative libname "library path" @ Chris@79: split_relative remainder "subpath" Chris@79: } Chris@79: end Chris@79: Chris@79: fun libpath context "" = Chris@79: extpath context Chris@79: | libpath context libname = Chris@79: subpath context libname "" Chris@79: Chris@79: fun project_file_path rootpath filename = Chris@79: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@79: in OS.Path.toString { Chris@79: isAbs = isAbs, Chris@79: vol = vol, Chris@79: arcs = arcs @ [ filename ] Chris@79: } Chris@79: end Chris@79: Chris@79: fun project_spec_path rootpath = Chris@79: project_file_path rootpath (RepointFilenames.project_file) Chris@79: Chris@79: fun project_lock_path rootpath = Chris@79: project_file_path rootpath (RepointFilenames.project_lock_file) Chris@79: Chris@79: fun project_completion_path rootpath = Chris@79: project_file_path rootpath (RepointFilenames.project_completion_file) Chris@79: Chris@79: fun trim str = Chris@79: hd (String.fields (fn x => x = #"\n" orelse x = #"\r") str) Chris@79: Chris@79: fun file_url path = Chris@79: let val forward_path = Chris@79: String.translate (fn #"\\" => "/" | Chris@79: c => Char.toString c) Chris@79: (OS.Path.mkCanonical path) Chris@79: in Chris@79: (* Path is expected to be absolute already, but if it Chris@79: starts with a drive letter, we'll need an extra slash *) Chris@79: case explode forward_path of Chris@79: #"/"::rest => "file:///" ^ implode rest Chris@79: | _ => "file:///" ^ forward_path Chris@79: end Chris@79: Chris@79: fun file_contents filename = Chris@79: let val stream = TextIO.openIn filename Chris@79: fun read_all str acc = Chris@79: case TextIO.inputLine str of Chris@79: SOME line => read_all str (trim line :: acc) Chris@79: | NONE => rev acc Chris@79: val contents = read_all stream [] Chris@79: val _ = TextIO.closeIn stream Chris@79: in Chris@79: String.concatWith "\n" contents Chris@79: end Chris@79: Chris@79: fun expand_commandline cmdlist = Chris@79: (* We are quite strict about what we accept here, except Chris@79: for the first element in cmdlist which is assumed to be a Chris@79: known command location rather than arbitrary user input. *) Chris@79: let open Char Chris@79: fun quote arg = Chris@79: if List.all Chris@79: (fn c => isAlphaNum c orelse c = #"-" orelse c = #"_") Chris@79: (explode arg) Chris@79: then arg Chris@79: else "\"" ^ arg ^ "\"" Chris@79: fun check arg = Chris@79: let val valid = explode " /#:;?,._-{}@=+" Chris@79: in Chris@79: app (fn c => Chris@79: if isAlphaNum c orelse Chris@79: List.exists (fn v => v = c) valid orelse Chris@79: c > chr 127 Chris@79: then () Chris@79: else raise Fail ("Invalid character '" ^ Chris@79: (Char.toString c) ^ Chris@79: "' in command list")) Chris@79: (explode arg); Chris@79: arg Chris@79: end Chris@79: in Chris@79: String.concatWith " " Chris@79: (map quote Chris@79: (hd cmdlist :: map check (tl cmdlist))) Chris@79: end Chris@79: Chris@79: val tick_cycle = ref 0 Chris@79: val tick_chars = Vector.fromList (map String.str (explode "|/-\\")) Chris@79: Chris@79: fun tick libname cmdlist = Chris@79: let val n = Vector.length tick_chars Chris@79: fun pad_to n str = Chris@79: if n <= String.size str then str Chris@79: else pad_to n (str ^ " ") Chris@79: val name = if libname <> "" then libname Chris@79: else if cmdlist = nil then "" Chris@79: else hd (rev cmdlist) Chris@79: in Chris@79: print (" " ^ Chris@79: Vector.sub(tick_chars, !tick_cycle) ^ " " ^ Chris@79: pad_to 70 name ^ Chris@79: "\r"); Chris@79: tick_cycle := (if !tick_cycle = n - 1 then 0 else 1 + !tick_cycle) Chris@79: end Chris@79: Chris@79: fun run_command context libname cmdlist redirect = Chris@79: let open OS Chris@79: val dir = libpath context libname Chris@79: val cmd = expand_commandline cmdlist Chris@79: val _ = if verbose () Chris@79: then print ("\n=== " ^ dir ^ "\n<<< " ^ cmd ^ "\n") Chris@79: else tick libname cmdlist Chris@79: val _ = FileSys.chDir dir Chris@79: val status = case redirect of Chris@79: NONE => Process.system cmd Chris@79: | SOME file => Process.system (cmd ^ ">" ^ file) Chris@79: in Chris@79: if Process.isSuccess status Chris@79: then OK () Chris@79: else ERROR ("Command failed: " ^ cmd ^ " (in dir " ^ dir ^ ")") Chris@79: end Chris@79: handle ex => ERROR ("Unable to run command: " ^ exnMessage ex) Chris@79: Chris@79: fun command context libname cmdlist = Chris@79: run_command context libname cmdlist NONE Chris@79: Chris@79: fun command_output context libname cmdlist = Chris@79: let open OS Chris@79: val tmpFile = FileSys.tmpName () Chris@79: val result = run_command context libname cmdlist (SOME tmpFile) Chris@79: val contents = file_contents tmpFile Chris@79: val _ = if verbose () Chris@79: then print (">>> \"" ^ contents ^ "\"\n") Chris@79: else () Chris@79: in Chris@79: FileSys.remove tmpFile handle _ => (); Chris@79: case result of Chris@79: OK () => OK contents Chris@79: | ERROR e => ERROR e Chris@79: end Chris@79: Chris@79: fun mydir () = Chris@79: let open OS Chris@79: val { dir, file } = Path.splitDirFile (CommandLine.name ()) Chris@79: in Chris@79: FileSys.realPath Chris@79: (if Path.isAbsolute dir Chris@79: then dir Chris@79: else Path.concat (FileSys.getDir (), dir)) Chris@79: end Chris@79: Chris@79: fun homedir () = Chris@79: (* Failure is not routine, so we use an exception here *) Chris@79: case (OS.Process.getEnv "HOME", Chris@79: OS.Process.getEnv "HOMEPATH") of Chris@79: (SOME home, _) => home Chris@79: | (NONE, SOME home) => home Chris@79: | (NONE, NONE) => Chris@79: raise Fail "Failed to look up home directory from environment" Chris@79: Chris@79: fun mkpath' path = Chris@79: if OS.FileSys.isDir path handle _ => false Chris@79: then OK () Chris@79: else case OS.Path.fromString path of Chris@79: { arcs = nil, ... } => OK () Chris@79: | { isAbs = false, ... } => ERROR "mkpath requires absolute path" Chris@79: | { isAbs, vol, arcs } => Chris@79: case mkpath' (OS.Path.toString { (* parent *) Chris@79: isAbs = isAbs, Chris@79: vol = vol, Chris@79: arcs = rev (tl (rev arcs)) }) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => ((OS.FileSys.mkDir path; OK ()) Chris@79: handle OS.SysErr (e, _) => Chris@79: ERROR ("Directory creation failed: " ^ e)) Chris@79: Chris@79: fun mkpath path = Chris@79: mkpath' (OS.Path.mkCanonical path) Chris@79: Chris@79: fun dir_contents dir = Chris@79: let open OS Chris@79: fun files_from dirstream = Chris@79: case FileSys.readDir dirstream of Chris@79: NONE => [] Chris@79: | SOME file => Chris@79: (* readDir is supposed to filter these, Chris@79: but let's be extra cautious: *) Chris@79: if file = Path.parentArc orelse file = Path.currentArc Chris@79: then files_from dirstream Chris@79: else file :: files_from dirstream Chris@79: val stream = FileSys.openDir dir Chris@79: val files = map (fn f => Path.joinDirFile Chris@79: { dir = dir, file = f }) Chris@79: (files_from stream) Chris@79: val _ = FileSys.closeDir stream Chris@79: in Chris@79: files Chris@79: end Chris@79: Chris@79: fun rmpath' path = Chris@79: let open OS Chris@79: fun remove path = Chris@79: if FileSys.isLink path (* dangling links bother isDir *) Chris@79: then FileSys.remove path Chris@79: else if FileSys.isDir path Chris@79: then (app remove (dir_contents path); FileSys.rmDir path) Chris@79: else FileSys.remove path Chris@79: in Chris@79: (remove path; OK ()) Chris@79: handle SysErr (e, _) => ERROR ("Path removal failed: " ^ e) Chris@79: end Chris@79: Chris@79: fun rmpath path = Chris@79: rmpath' (OS.Path.mkCanonical path) Chris@79: Chris@79: fun nonempty_dir_exists path = Chris@79: let open OS.FileSys Chris@79: in Chris@79: (not (isLink path) andalso Chris@79: isDir path andalso Chris@79: dir_contents path <> []) Chris@79: handle _ => false Chris@79: end Chris@79: Chris@79: end Chris@79: Chris@79: functor LibControlFn (V: VCS_CONTROL) :> LIB_CONTROL = struct Chris@79: Chris@79: (* Valid states for unpinned libraries: Chris@79: Chris@79: - CORRECT: We are on the right branch and are up-to-date with Chris@79: it as far as we can tell. (If not using the network, this Chris@79: should be reported to user as "Present" rather than "Correct" Chris@79: as the remote repo may have advanced without us knowing.) Chris@79: Chris@79: - SUPERSEDED: We are on the right branch but we can see that Chris@79: there is a newer revision either locally or on the remote (in Chris@79: Git terms, we are at an ancestor of the desired branch tip). Chris@79: Chris@79: - WRONG: We are on the wrong branch (in Git terms, we are not Chris@79: at the desired branch tip or any ancestor of it). Chris@79: Chris@79: - ABSENT: Repo doesn't exist here at all. Chris@79: Chris@79: Valid states for pinned libraries: Chris@79: Chris@79: - CORRECT: We are at the pinned revision. Chris@79: Chris@79: - WRONG: We are at any revision other than the pinned one. Chris@79: Chris@79: - ABSENT: Repo doesn't exist here at all. Chris@79: *) Chris@79: Chris@79: fun check with_network context Chris@79: ({ libname, source, branch, Chris@79: project_pin, lock_pin, ... } : libspec) = Chris@79: let fun check_unpinned () = Chris@79: let val newest = Chris@79: if with_network Chris@79: then V.is_newest context (libname, source, branch) Chris@79: else V.is_newest_locally context (libname, branch) Chris@79: in Chris@79: case newest of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK CORRECT Chris@79: | OK false => Chris@79: case V.is_on_branch context (libname, branch) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK SUPERSEDED Chris@79: | OK false => OK WRONG Chris@79: end Chris@79: fun check_pinned target = Chris@79: case V.is_at context (libname, target) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK CORRECT Chris@79: | OK false => OK WRONG Chris@79: fun check_remote () = Chris@79: case project_pin of Chris@79: UNPINNED => check_unpinned () Chris@79: | PINNED target => check_pinned target Chris@79: fun check_local () = Chris@79: case V.is_modified_locally context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK MODIFIED Chris@79: | OK false => Chris@79: case lock_pin of Chris@79: UNPINNED => OK CLEAN Chris@79: | PINNED target => Chris@79: case V.is_at context (libname, target) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK CLEAN Chris@79: | OK false => OK LOCK_MISMATCHED Chris@79: in Chris@79: case V.exists context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK false => OK (ABSENT, CLEAN) Chris@79: | OK true => Chris@79: case (check_remote (), check_local ()) of Chris@79: (ERROR e, _) => ERROR e Chris@79: | (_, ERROR e) => ERROR e Chris@79: | (OK r, OK l) => OK (r, l) Chris@79: end Chris@79: Chris@79: val review = check true Chris@79: val status = check false Chris@79: Chris@79: fun update context Chris@79: ({ libname, source, branch, Chris@79: project_pin, lock_pin, ... } : libspec) = Chris@79: let fun update_unpinned () = Chris@79: case V.is_newest context (libname, source, branch) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK () Chris@79: | OK false => V.update context (libname, source, branch) Chris@79: fun update_pinned target = Chris@79: case V.is_at context (libname, target) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK () Chris@79: | OK false => V.update_to context (libname, source, target) Chris@79: fun update' () = Chris@79: case lock_pin of Chris@79: PINNED target => update_pinned target Chris@79: | UNPINNED => Chris@79: case project_pin of Chris@79: PINNED target => update_pinned target Chris@79: | UNPINNED => update_unpinned () Chris@79: in Chris@79: case V.exists context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK true => update' () Chris@79: | OK false => Chris@79: case V.checkout context (libname, source, branch) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => update' () Chris@79: end Chris@79: Chris@79: fun id_of context ({ libname, ... } : libspec) = Chris@79: V.id_of context libname Chris@79: Chris@79: fun is_working context vcs = Chris@79: V.is_working context Chris@79: Chris@79: end Chris@79: Chris@79: (* Simple Standard ML JSON parser Chris@79: https://bitbucket.org/cannam/sml-simplejson Chris@79: Copyright 2017 Chris Cannam. BSD licence. Chris@79: Parts based on the JSON parser in the Ponyo library by Phil Eaton. Chris@79: *) Chris@79: Chris@79: signature JSON = sig Chris@79: Chris@79: datatype json = OBJECT of (string * json) list Chris@79: | ARRAY of json list Chris@79: | NUMBER of real Chris@79: | STRING of string Chris@79: | BOOL of bool Chris@79: | NULL Chris@79: Chris@79: datatype 'a result = OK of 'a Chris@79: | ERROR of string Chris@79: Chris@79: val parse : string -> json result Chris@79: val serialise : json -> string Chris@79: val serialiseIndented : json -> string Chris@79: Chris@79: end Chris@79: Chris@79: structure Json :> JSON = struct Chris@79: Chris@79: datatype json = OBJECT of (string * json) list Chris@79: | ARRAY of json list Chris@79: | NUMBER of real Chris@79: | STRING of string Chris@79: | BOOL of bool Chris@79: | NULL Chris@79: Chris@79: datatype 'a result = OK of 'a Chris@79: | ERROR of string Chris@79: Chris@79: structure T = struct Chris@79: datatype token = NUMBER of char list Chris@79: | STRING of string Chris@79: | BOOL of bool Chris@79: | NULL Chris@79: | CURLY_L Chris@79: | CURLY_R Chris@79: | SQUARE_L Chris@79: | SQUARE_R Chris@79: | COLON Chris@79: | COMMA Chris@79: Chris@79: fun toString t = Chris@79: case t of NUMBER digits => implode digits Chris@79: | STRING s => s Chris@79: | BOOL b => Bool.toString b Chris@79: | NULL => "null" Chris@79: | CURLY_L => "{" Chris@79: | CURLY_R => "}" Chris@79: | SQUARE_L => "[" Chris@79: | SQUARE_R => "]" Chris@79: | COLON => ":" Chris@79: | COMMA => "," Chris@79: end Chris@79: Chris@79: fun bmpToUtf8 cp = (* convert a codepoint in Unicode BMP to utf8 bytes *) Chris@79: let open Word Chris@79: infix 6 orb andb >> Chris@79: in Chris@79: map (Char.chr o toInt) Chris@79: (if cp < 0wx80 then Chris@79: [cp] Chris@79: else if cp < 0wx800 then Chris@79: [0wxc0 orb (cp >> 0w6), 0wx80 orb (cp andb 0wx3f)] Chris@79: else if cp < 0wx10000 then Chris@79: [0wxe0 orb (cp >> 0w12), Chris@79: 0wx80 orb ((cp >> 0w6) andb 0wx3f), Chris@79: 0wx80 orb (cp andb 0wx3f)] Chris@79: else raise Fail ("Invalid BMP point " ^ (Word.toString cp))) Chris@79: end Chris@79: Chris@79: fun error pos text = ERROR (text ^ " at character position " ^ Chris@79: Int.toString (pos - 1)) Chris@79: fun token_error pos = error pos ("Unexpected token") Chris@79: Chris@79: fun lexNull pos acc (#"u" :: #"l" :: #"l" :: xs) = Chris@79: lex (pos + 3) (T.NULL :: acc) xs Chris@79: | lexNull pos acc _ = token_error pos Chris@79: Chris@79: and lexTrue pos acc (#"r" :: #"u" :: #"e" :: xs) = Chris@79: lex (pos + 3) (T.BOOL true :: acc) xs Chris@79: | lexTrue pos acc _ = token_error pos Chris@79: Chris@79: and lexFalse pos acc (#"a" :: #"l" :: #"s" :: #"e" :: xs) = Chris@79: lex (pos + 4) (T.BOOL false :: acc) xs Chris@79: | lexFalse pos acc _ = token_error pos Chris@79: Chris@79: and lexChar tok pos acc xs = Chris@79: lex pos (tok :: acc) xs Chris@79: Chris@79: and lexString pos acc cc = Chris@79: let datatype escaped = ESCAPED | NORMAL Chris@79: fun lexString' pos text ESCAPED [] = Chris@79: error pos "End of input during escape sequence" Chris@79: | lexString' pos text NORMAL [] = Chris@79: error pos "End of input during string" Chris@79: | lexString' pos text ESCAPED (x :: xs) = Chris@79: let fun esc c = lexString' (pos + 1) (c :: text) NORMAL xs Chris@79: in case x of Chris@79: #"\"" => esc x Chris@79: | #"\\" => esc x Chris@79: | #"/" => esc x Chris@79: | #"b" => esc #"\b" Chris@79: | #"f" => esc #"\f" Chris@79: | #"n" => esc #"\n" Chris@79: | #"r" => esc #"\r" Chris@79: | #"t" => esc #"\t" Chris@79: | _ => error pos ("Invalid escape \\" ^ Chris@79: Char.toString x) Chris@79: end Chris@79: | lexString' pos text NORMAL (#"\\" :: #"u" ::a::b::c::d:: xs) = Chris@79: if List.all Char.isHexDigit [a,b,c,d] Chris@79: then case Word.fromString ("0wx" ^ (implode [a,b,c,d])) of Chris@79: SOME w => (let val utf = rev (bmpToUtf8 w) in Chris@79: lexString' (pos + 6) (utf @ text) Chris@79: NORMAL xs Chris@79: end Chris@79: handle Fail err => error pos err) Chris@79: | NONE => error pos "Invalid Unicode BMP escape sequence" Chris@79: else error pos "Invalid Unicode BMP escape sequence" Chris@79: | lexString' pos text NORMAL (x :: xs) = Chris@79: if Char.ord x < 0x20 Chris@79: then error pos "Invalid unescaped control character" Chris@79: else Chris@79: case x of Chris@79: #"\"" => OK (rev text, xs, pos + 1) Chris@79: | #"\\" => lexString' (pos + 1) text ESCAPED xs Chris@79: | _ => lexString' (pos + 1) (x :: text) NORMAL xs Chris@79: in Chris@79: case lexString' pos [] NORMAL cc of Chris@79: OK (text, rest, newpos) => Chris@79: lex newpos (T.STRING (implode text) :: acc) rest Chris@79: | ERROR e => ERROR e Chris@79: end Chris@79: Chris@79: and lexNumber firstChar pos acc cc = Chris@79: let val valid = explode ".+-e" Chris@79: fun lexNumber' pos digits [] = (rev digits, [], pos) Chris@79: | lexNumber' pos digits (x :: xs) = Chris@79: if x = #"E" then lexNumber' (pos + 1) (#"e" :: digits) xs Chris@79: else if Char.isDigit x orelse List.exists (fn c => x = c) valid Chris@79: then lexNumber' (pos + 1) (x :: digits) xs Chris@79: else (rev digits, x :: xs, pos) Chris@79: val (digits, rest, newpos) = Chris@79: lexNumber' (pos - 1) [] (firstChar :: cc) Chris@79: in Chris@79: case digits of Chris@79: [] => token_error pos Chris@79: | _ => lex newpos (T.NUMBER digits :: acc) rest Chris@79: end Chris@79: Chris@79: and lex pos acc [] = OK (rev acc) Chris@79: | lex pos acc (x::xs) = Chris@79: (case x of Chris@79: #" " => lex Chris@79: | #"\t" => lex Chris@79: | #"\n" => lex Chris@79: | #"\r" => lex Chris@79: | #"{" => lexChar T.CURLY_L Chris@79: | #"}" => lexChar T.CURLY_R Chris@79: | #"[" => lexChar T.SQUARE_L Chris@79: | #"]" => lexChar T.SQUARE_R Chris@79: | #":" => lexChar T.COLON Chris@79: | #"," => lexChar T.COMMA Chris@79: | #"\"" => lexString Chris@79: | #"t" => lexTrue Chris@79: | #"f" => lexFalse Chris@79: | #"n" => lexNull Chris@79: | x => lexNumber x) (pos + 1) acc xs Chris@79: Chris@79: fun show [] = "end of input" Chris@79: | show (tok :: _) = T.toString tok Chris@79: Chris@79: fun parseNumber digits = Chris@79: (* Note lexNumber already case-insensitised the E for us *) Chris@79: let open Char Chris@79: Chris@79: fun okExpDigits [] = false Chris@79: | okExpDigits (c :: []) = isDigit c Chris@79: | okExpDigits (c :: cs) = isDigit c andalso okExpDigits cs Chris@79: Chris@79: fun okExponent [] = false Chris@79: | okExponent (#"+" :: cs) = okExpDigits cs Chris@79: | okExponent (#"-" :: cs) = okExpDigits cs Chris@79: | okExponent cc = okExpDigits cc Chris@79: Chris@79: fun okFracTrailing [] = true Chris@79: | okFracTrailing (c :: cs) = Chris@79: (isDigit c andalso okFracTrailing cs) orelse Chris@79: (c = #"e" andalso okExponent cs) Chris@79: Chris@79: fun okFraction [] = false Chris@79: | okFraction (c :: cs) = Chris@79: isDigit c andalso okFracTrailing cs Chris@79: Chris@79: fun okPosTrailing [] = true Chris@79: | okPosTrailing (#"." :: cs) = okFraction cs Chris@79: | okPosTrailing (#"e" :: cs) = okExponent cs Chris@79: | okPosTrailing (c :: cs) = Chris@79: isDigit c andalso okPosTrailing cs Chris@79: Chris@79: fun okPositive [] = false Chris@79: | okPositive (#"0" :: []) = true Chris@79: | okPositive (#"0" :: #"." :: cs) = okFraction cs Chris@79: | okPositive (#"0" :: #"e" :: cs) = okExponent cs Chris@79: | okPositive (#"0" :: cs) = false Chris@79: | okPositive (c :: cs) = isDigit c andalso okPosTrailing cs Chris@79: Chris@79: fun okNumber (#"-" :: cs) = okPositive cs Chris@79: | okNumber cc = okPositive cc Chris@79: in Chris@79: if okNumber digits Chris@79: then case Real.fromString (implode digits) of Chris@79: NONE => ERROR "Number out of range" Chris@79: | SOME r => OK r Chris@79: else ERROR ("Invalid number \"" ^ (implode digits) ^ "\"") Chris@79: end Chris@79: Chris@79: fun parseObject (T.CURLY_R :: xs) = OK (OBJECT [], xs) Chris@79: | parseObject tokens = Chris@79: let fun parsePair (T.STRING key :: T.COLON :: xs) = Chris@79: (case parseTokens xs of Chris@79: ERROR e => ERROR e Chris@79: | OK (j, xs) => OK ((key, j), xs)) Chris@79: | parsePair other = Chris@79: ERROR ("Object key/value pair expected around \"" ^ Chris@79: show other ^ "\"") Chris@79: fun parseObject' acc [] = ERROR "End of input during object" Chris@79: | parseObject' acc tokens = Chris@79: case parsePair tokens of Chris@79: ERROR e => ERROR e Chris@79: | OK (pair, T.COMMA :: xs) => Chris@79: parseObject' (pair :: acc) xs Chris@79: | OK (pair, T.CURLY_R :: xs) => Chris@79: OK (OBJECT (rev (pair :: acc)), xs) Chris@79: | OK (_, _) => ERROR "Expected , or } after object element" Chris@79: in Chris@79: parseObject' [] tokens Chris@79: end Chris@79: Chris@79: and parseArray (T.SQUARE_R :: xs) = OK (ARRAY [], xs) Chris@79: | parseArray tokens = Chris@79: let fun parseArray' acc [] = ERROR "End of input during array" Chris@79: | parseArray' acc tokens = Chris@79: case parseTokens tokens of Chris@79: ERROR e => ERROR e Chris@79: | OK (j, T.COMMA :: xs) => parseArray' (j :: acc) xs Chris@79: | OK (j, T.SQUARE_R :: xs) => OK (ARRAY (rev (j :: acc)), xs) Chris@79: | OK (_, _) => ERROR "Expected , or ] after array element" Chris@79: in Chris@79: parseArray' [] tokens Chris@79: end Chris@79: Chris@79: and parseTokens [] = ERROR "Value expected" Chris@79: | parseTokens (tok :: xs) = Chris@79: (case tok of Chris@79: T.NUMBER d => (case parseNumber d of Chris@79: OK r => OK (NUMBER r, xs) Chris@79: | ERROR e => ERROR e) Chris@79: | T.STRING s => OK (STRING s, xs) Chris@79: | T.BOOL b => OK (BOOL b, xs) Chris@79: | T.NULL => OK (NULL, xs) Chris@79: | T.CURLY_L => parseObject xs Chris@79: | T.SQUARE_L => parseArray xs Chris@79: | _ => ERROR ("Unexpected token " ^ T.toString tok ^ Chris@79: " before " ^ show xs)) Chris@79: Chris@79: fun parse str = Chris@79: case lex 1 [] (explode str) of Chris@79: ERROR e => ERROR e Chris@79: | OK tokens => case parseTokens tokens of Chris@79: OK (value, []) => OK value Chris@79: | OK (_, _) => ERROR "Extra data after input" Chris@79: | ERROR e => ERROR e Chris@79: Chris@79: fun stringEscape s = Chris@79: let fun esc x = [x, #"\\"] Chris@79: fun escape' acc [] = rev acc Chris@79: | escape' acc (x :: xs) = Chris@79: escape' (case x of Chris@79: #"\"" => esc x @ acc Chris@79: | #"\\" => esc x @ acc Chris@79: | #"\b" => esc #"b" @ acc Chris@79: | #"\f" => esc #"f" @ acc Chris@79: | #"\n" => esc #"n" @ acc Chris@79: | #"\r" => esc #"r" @ acc Chris@79: | #"\t" => esc #"t" @ acc Chris@79: | _ => Chris@79: let val c = Char.ord x Chris@79: in Chris@79: if c < 0x20 Chris@79: then let val hex = Word.toString (Word.fromInt c) Chris@79: in (rev o explode) (if c < 0x10 Chris@79: then ("\\u000" ^ hex) Chris@79: else ("\\u00" ^ hex)) Chris@79: end @ acc Chris@79: else Chris@79: x :: acc Chris@79: end) Chris@79: xs Chris@79: in Chris@79: implode (escape' [] (explode s)) Chris@79: end Chris@79: Chris@79: fun serialise json = Chris@79: case json of Chris@79: OBJECT pp => "{" ^ String.concatWith Chris@79: "," (map (fn (key, value) => Chris@79: serialise (STRING key) ^ ":" ^ Chris@79: serialise value) pp) ^ Chris@79: "}" Chris@79: | ARRAY arr => "[" ^ String.concatWith "," (map serialise arr) ^ "]" Chris@79: | NUMBER n => implode (map (fn #"~" => #"-" | c => c) Chris@79: (explode (Real.toString n))) Chris@79: | STRING s => "\"" ^ stringEscape s ^ "\"" Chris@79: | BOOL b => Bool.toString b Chris@79: | NULL => "null" Chris@79: Chris@79: fun serialiseIndented json = Chris@79: let fun indent 0 = "" Chris@79: | indent i = " " ^ indent (i - 1) Chris@79: fun serialiseIndented' i json = Chris@79: let val ser = serialiseIndented' (i + 1) Chris@79: in Chris@79: case json of Chris@79: OBJECT [] => "{}" Chris@79: | ARRAY [] => "[]" Chris@79: | OBJECT pp => "{\n" ^ indent (i + 1) ^ Chris@79: String.concatWith Chris@79: (",\n" ^ indent (i + 1)) Chris@79: (map (fn (key, value) => Chris@79: ser (STRING key) ^ ": " ^ Chris@79: ser value) pp) ^ Chris@79: "\n" ^ indent i ^ "}" Chris@79: | ARRAY arr => "[\n" ^ indent (i + 1) ^ Chris@79: String.concatWith Chris@79: (",\n" ^ indent (i + 1)) Chris@79: (map ser arr) ^ Chris@79: "\n" ^ indent i ^ "]" Chris@79: | other => serialise other Chris@79: end Chris@79: in Chris@79: serialiseIndented' 0 json ^ "\n" Chris@79: end Chris@79: Chris@79: end Chris@79: Chris@79: Chris@79: structure JsonBits :> sig Chris@79: exception Config of string Chris@79: val load_json_from : string -> Json.json (* filename -> json *) Chris@79: val save_json_to : string -> Json.json -> unit Chris@79: val lookup_optional : Json.json -> string list -> Json.json option Chris@79: val lookup_optional_string : Json.json -> string list -> string option Chris@79: val lookup_mandatory : Json.json -> string list -> Json.json Chris@79: val lookup_mandatory_string : Json.json -> string list -> string Chris@79: end = struct Chris@79: Chris@79: exception Config of string Chris@79: Chris@79: fun load_json_from filename = Chris@79: case Json.parse (FileBits.file_contents filename) of Chris@79: Json.OK json => json Chris@79: | Json.ERROR e => raise Config ("Failed to parse file: " ^ e) Chris@79: Chris@79: fun save_json_to filename json = Chris@79: (* using binary I/O to avoid ever writing CR/LF line endings *) Chris@79: let val jstr = Json.serialiseIndented json Chris@79: val stream = BinIO.openOut filename Chris@79: in Chris@79: BinIO.output (stream, Byte.stringToBytes jstr); Chris@79: BinIO.closeOut stream Chris@79: end Chris@79: Chris@79: fun lookup_optional json kk = Chris@79: let fun lookup key = Chris@79: case json of Chris@79: Json.OBJECT kvs => Chris@79: (case List.filter (fn (k, v) => k = key) kvs of Chris@79: [] => NONE Chris@79: | [(_,v)] => SOME v Chris@79: | _ => raise Config ("Duplicate key: " ^ Chris@79: (String.concatWith " -> " kk))) Chris@79: | _ => raise Config "Object expected" Chris@79: in Chris@79: case kk of Chris@79: [] => NONE Chris@79: | key::[] => lookup key Chris@79: | key::kk => case lookup key of Chris@79: NONE => NONE Chris@79: | SOME j => lookup_optional j kk Chris@79: end Chris@79: Chris@79: fun lookup_optional_string json kk = Chris@79: case lookup_optional json kk of Chris@79: SOME (Json.STRING s) => SOME s Chris@79: | SOME _ => raise Config ("Value (if present) must be string: " ^ Chris@79: (String.concatWith " -> " kk)) Chris@79: | NONE => NONE Chris@79: Chris@79: fun lookup_mandatory json kk = Chris@79: case lookup_optional json kk of Chris@79: SOME v => v Chris@79: | NONE => raise Config ("Value is mandatory: " ^ Chris@79: (String.concatWith " -> " kk)) Chris@79: Chris@79: fun lookup_mandatory_string json kk = Chris@79: case lookup_optional json kk of Chris@79: SOME (Json.STRING s) => s Chris@79: | _ => raise Config ("Value must be string: " ^ Chris@79: (String.concatWith " -> " kk)) Chris@79: end Chris@79: Chris@79: structure Provider :> sig Chris@79: val load_providers : Json.json -> provider list Chris@79: val load_more_providers : provider list -> Json.json -> provider list Chris@79: val remote_url : context -> vcs -> source -> libname -> string Chris@79: end = struct Chris@79: Chris@79: val known_providers : provider list = Chris@79: [ { Chris@79: service = "bitbucket", Chris@79: supports = [HG, GIT], Chris@79: remote_spec = { Chris@79: anon = SOME "https://bitbucket.org/{owner}/{repository}", Chris@79: auth = SOME "ssh://{vcs}@bitbucket.org/{owner}/{repository}" Chris@79: } Chris@79: }, Chris@79: { Chris@79: service = "github", Chris@79: supports = [GIT], Chris@79: remote_spec = { Chris@79: anon = SOME "https://github.com/{owner}/{repository}", Chris@79: auth = SOME "ssh://{vcs}@github.com/{owner}/{repository}" Chris@79: } Chris@79: } Chris@79: ] Chris@79: Chris@79: fun vcs_name vcs = Chris@79: case vcs of HG => "hg" Chris@79: | GIT => "git" Chris@79: | SVN => "svn" Chris@79: Chris@79: fun vcs_from_name name = Chris@79: case name of "hg" => HG Chris@79: | "git" => GIT Chris@79: | "svn" => SVN Chris@79: | other => raise Fail ("Unknown vcs name \"" ^ name ^ "\"") Chris@79: Chris@79: fun load_more_providers previously_loaded json = Chris@79: let open JsonBits Chris@79: fun load pjson pname : provider = Chris@79: { Chris@79: service = pname, Chris@79: supports = Chris@79: case lookup_mandatory pjson ["vcs"] of Chris@79: Json.ARRAY vv => Chris@79: map (fn (Json.STRING v) => vcs_from_name v Chris@79: | _ => raise Fail "Strings expected in vcs array") Chris@79: vv Chris@79: | _ => raise Fail "Array expected for vcs", Chris@79: remote_spec = { Chris@79: anon = lookup_optional_string pjson ["anonymous"], Chris@79: auth = lookup_optional_string pjson ["authenticated"] Chris@79: } Chris@79: } Chris@79: val loaded = Chris@79: case lookup_optional json ["services"] of Chris@79: NONE => [] Chris@79: | SOME (Json.OBJECT pl) => map (fn (k, v) => load v k) pl Chris@79: | _ => raise Fail "Object expected for services in config" Chris@79: val newly_loaded = Chris@79: List.filter (fn p => not (List.exists (fn pp => #service p = Chris@79: #service pp) Chris@79: previously_loaded)) Chris@79: loaded Chris@79: in Chris@79: previously_loaded @ newly_loaded Chris@79: end Chris@79: Chris@79: fun load_providers json = Chris@79: load_more_providers known_providers json Chris@79: Chris@79: fun expand_spec spec { vcs, service, owner, repo } login = Chris@79: (* ugly *) Chris@79: let fun replace str = Chris@79: case str of Chris@79: "vcs" => vcs_name vcs Chris@79: | "service" => service Chris@79: | "owner" => Chris@79: (case owner of Chris@79: SOME ostr => ostr Chris@79: | NONE => raise Fail ("Owner not specified for service " ^ Chris@79: service)) Chris@79: | "repository" => repo Chris@79: | "account" => Chris@79: (case login of Chris@79: SOME acc => acc Chris@79: | NONE => raise Fail ("Account not given for service " ^ Chris@79: service)) Chris@79: | other => raise Fail ("Unknown variable \"" ^ other ^ Chris@79: "\" in spec for service " ^ service) Chris@79: fun expand' acc sstr = Chris@79: case Substring.splitl (fn c => c <> #"{") sstr of Chris@79: (pfx, sfx) => Chris@79: if Substring.isEmpty sfx Chris@79: then rev (pfx :: acc) Chris@79: else Chris@79: case Substring.splitl (fn c => c <> #"}") sfx of Chris@79: (tok, remainder) => Chris@79: if Substring.isEmpty remainder Chris@79: then rev (tok :: pfx :: acc) Chris@79: else let val replacement = Chris@79: replace Chris@79: (* tok begins with "{": *) Chris@79: (Substring.string Chris@79: (Substring.triml 1 tok)) Chris@79: in Chris@79: expand' (Substring.full replacement :: Chris@79: pfx :: acc) Chris@79: (* remainder begins with "}": *) Chris@79: (Substring.triml 1 remainder) Chris@79: end Chris@79: in Chris@79: Substring.concat (expand' [] (Substring.full spec)) Chris@79: end Chris@79: Chris@79: fun provider_url req login providers = Chris@79: case providers of Chris@79: [] => raise Fail ("Unknown service \"" ^ (#service req) ^ Chris@79: "\" for vcs \"" ^ (vcs_name (#vcs req)) ^ "\"") Chris@79: | ({ service, supports, remote_spec : remote_spec } :: rest) => Chris@79: if service <> (#service req) orelse Chris@79: not (List.exists (fn v => v = (#vcs req)) supports) Chris@79: then provider_url req login rest Chris@79: else Chris@79: case (login, #auth remote_spec, #anon remote_spec) of Chris@79: (SOME _, SOME auth, _) => expand_spec auth req login Chris@79: | (SOME _, _, SOME anon) => expand_spec anon req NONE Chris@79: | (NONE, _, SOME anon) => expand_spec anon req NONE Chris@79: | _ => raise Fail ("No suitable anonymous or authenticated " ^ Chris@79: "URL spec provided for service \"" ^ Chris@79: service ^ "\"") Chris@79: Chris@79: fun login_for ({ accounts, ... } : context) service = Chris@79: case List.find (fn a => service = #service a) accounts of Chris@79: SOME { login, ... } => SOME login Chris@79: | NONE => NONE Chris@79: Chris@79: fun reponame_for path = Chris@79: case String.tokens (fn c => c = #"/") path of Chris@79: [] => raise Fail "Non-empty library path required" Chris@79: | toks => hd (rev toks) Chris@79: Chris@79: fun remote_url (context : context) vcs source libname = Chris@79: case source of Chris@79: URL_SOURCE u => u Chris@79: | SERVICE_SOURCE { service, owner, repo } => Chris@79: provider_url { vcs = vcs, Chris@79: service = service, Chris@79: owner = owner, Chris@79: repo = case repo of Chris@79: SOME r => r Chris@79: | NONE => reponame_for libname } Chris@79: (login_for context service) Chris@79: (#providers context) Chris@79: end Chris@79: Chris@79: structure HgControl :> VCS_CONTROL = struct Chris@79: Chris@79: (* Pulls always use an explicit URL, never just the default Chris@79: remote, in order to ensure we update properly if the location Chris@79: given in the project file changes. *) Chris@79: Chris@79: type vcsstate = { id: string, modified: bool, Chris@79: branch: string, tags: string list } Chris@79: Chris@79: val hg_program = "hg" Chris@79: Chris@79: val hg_args = [ "--config", "ui.interactive=true", Chris@79: "--config", "ui.merge=:merge" ] Chris@79: Chris@79: fun hg_command context libname args = Chris@79: FileBits.command context libname (hg_program :: hg_args @ args) Chris@79: Chris@79: fun hg_command_output context libname args = Chris@79: FileBits.command_output context libname (hg_program :: hg_args @ args) Chris@79: Chris@79: fun is_working context = Chris@79: case hg_command_output context "" ["--version"] of Chris@79: OK "" => OK false Chris@79: | OK _ => OK true Chris@79: | ERROR e => ERROR e Chris@79: Chris@79: fun exists context libname = Chris@79: OK (OS.FileSys.isDir (FileBits.subpath context libname ".hg")) Chris@79: handle _ => OK false Chris@79: Chris@79: fun remote_for context (libname, source) = Chris@79: Provider.remote_url context HG source libname Chris@79: Chris@79: fun current_state context libname : vcsstate result = Chris@79: let fun is_branch text = text <> "" andalso #"(" = hd (explode text) Chris@79: and extract_branch b = Chris@79: if is_branch b (* need to remove enclosing parens *) Chris@79: then (implode o rev o tl o rev o tl o explode) b Chris@79: else "default" Chris@79: and is_modified id = id <> "" andalso #"+" = hd (rev (explode id)) Chris@79: and extract_id id = Chris@79: if is_modified id (* need to remove trailing "+" *) Chris@79: then (implode o rev o tl o rev o explode) id Chris@79: else id Chris@79: and split_tags tags = String.tokens (fn c => c = #"/") tags Chris@79: and state_for (id, branch, tags) = Chris@79: OK { id = extract_id id, Chris@79: modified = is_modified id, Chris@79: branch = extract_branch branch, Chris@79: tags = split_tags tags } Chris@79: in Chris@79: case hg_command_output context libname ["id"] of Chris@79: ERROR e => ERROR e Chris@79: | OK out => Chris@79: case String.tokens (fn x => x = #" ") out of Chris@79: [id, branch, tags] => state_for (id, branch, tags) Chris@79: | [id, other] => if is_branch other Chris@79: then state_for (id, other, "") Chris@79: else state_for (id, "", other) Chris@79: | [id] => state_for (id, "", "") Chris@79: | _ => ERROR ("Unexpected output from hg id: " ^ out) Chris@79: end Chris@79: Chris@79: fun branch_name branch = case branch of Chris@79: DEFAULT_BRANCH => "default" Chris@79: | BRANCH "" => "default" Chris@79: | BRANCH b => b Chris@79: Chris@79: fun id_of context libname = Chris@79: case current_state context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK { id, ... } => OK id Chris@79: Chris@79: fun is_at context (libname, id_or_tag) = Chris@79: case current_state context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK { id, tags, ... } => Chris@79: OK (String.isPrefix id_or_tag id orelse Chris@79: String.isPrefix id id_or_tag orelse Chris@79: List.exists (fn t => t = id_or_tag) tags) Chris@79: Chris@79: fun is_on_branch context (libname, b) = Chris@79: case current_state context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK { branch, ... } => OK (branch = branch_name b) Chris@79: Chris@79: fun is_newest_locally context (libname, branch) = Chris@79: case hg_command_output context libname Chris@79: ["log", "-l1", Chris@79: "-b", branch_name branch, Chris@79: "--template", "{node}"] of Chris@79: ERROR e => OK false (* desired branch does not exist *) Chris@79: | OK newest_in_repo => is_at context (libname, newest_in_repo) Chris@79: Chris@79: fun pull context (libname, source) = Chris@79: let val url = remote_for context (libname, source) Chris@79: in Chris@79: hg_command context libname Chris@79: (if FileBits.verbose () Chris@79: then ["pull", url] Chris@79: else ["pull", "-q", url]) Chris@79: end Chris@79: Chris@79: fun is_newest context (libname, source, branch) = Chris@79: case is_newest_locally context (libname, branch) of Chris@79: ERROR e => ERROR e Chris@79: | OK false => OK false Chris@79: | OK true => Chris@79: case pull context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | _ => is_newest_locally context (libname, branch) Chris@79: Chris@79: fun is_modified_locally context libname = Chris@79: case current_state context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK { modified, ... } => OK modified Chris@79: Chris@79: fun checkout context (libname, source, branch) = Chris@79: let val url = remote_for context (libname, source) Chris@79: in Chris@79: (* make the lib dir rather than just the ext dir, since Chris@79: the lib dir might be nested and hg will happily check Chris@79: out into an existing empty dir anyway *) Chris@79: case FileBits.mkpath (FileBits.libpath context libname) of Chris@79: ERROR e => ERROR e Chris@79: | _ => hg_command context "" Chris@79: ["clone", "-u", branch_name branch, Chris@79: url, libname] Chris@79: end Chris@79: Chris@79: fun update context (libname, source, branch) = Chris@79: let val pull_result = pull context (libname, source) Chris@79: in Chris@79: case hg_command context libname ["update", branch_name branch] of Chris@79: ERROR e => ERROR e Chris@79: | _ => Chris@79: case pull_result of Chris@79: ERROR e => ERROR e Chris@79: | _ => OK () Chris@79: end Chris@79: Chris@79: fun update_to context (libname, _, "") = Chris@79: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@79: | update_to context (libname, source, id) = Chris@79: let val pull_result = pull context (libname, source) Chris@79: in Chris@79: case hg_command context libname ["update", "-r", id] of Chris@79: OK _ => OK () Chris@79: | ERROR e => Chris@79: case pull_result of Chris@79: ERROR e' => ERROR e' (* this was the ur-error *) Chris@79: | _ => ERROR e Chris@79: end Chris@79: Chris@79: fun copy_url_for context libname = Chris@79: OK (FileBits.file_url (FileBits.libpath context libname)) Chris@79: Chris@79: end Chris@79: Chris@79: structure GitControl :> VCS_CONTROL = struct Chris@79: Chris@79: (* With Git repos we always operate in detached HEAD state. Even Chris@79: the master branch is checked out using a remote reference Chris@79: (repoint/master). The remote we use is always named repoint, and we Chris@79: update it to the expected URL each time we fetch, in order to Chris@79: ensure we update properly if the location given in the project Chris@79: file changes. The origin remote is unused. *) Chris@79: Chris@79: val git_program = "git" Chris@79: Chris@79: fun git_command context libname args = Chris@79: FileBits.command context libname (git_program :: args) Chris@79: Chris@79: fun git_command_output context libname args = Chris@79: FileBits.command_output context libname (git_program :: args) Chris@79: Chris@79: fun is_working context = Chris@79: case git_command_output context "" ["--version"] of Chris@79: OK "" => OK false Chris@79: | OK _ => OK true Chris@79: | ERROR e => ERROR e Chris@79: Chris@79: fun exists context libname = Chris@79: OK (OS.FileSys.isDir (FileBits.subpath context libname ".git")) Chris@79: handle _ => OK false Chris@79: Chris@79: fun remote_for context (libname, source) = Chris@79: Provider.remote_url context GIT source libname Chris@79: Chris@79: fun branch_name branch = case branch of Chris@79: DEFAULT_BRANCH => "master" Chris@79: | BRANCH "" => "master" Chris@79: | BRANCH b => b Chris@79: Chris@79: val our_remote = "repoint" Chris@79: Chris@79: fun remote_branch_name branch = our_remote ^ "/" ^ branch_name branch Chris@79: Chris@79: fun checkout context (libname, source, branch) = Chris@79: let val url = remote_for context (libname, source) Chris@79: in Chris@79: (* make the lib dir rather than just the ext dir, since Chris@79: the lib dir might be nested and git will happily check Chris@79: out into an existing empty dir anyway *) Chris@79: case FileBits.mkpath (FileBits.libpath context libname) of Chris@79: OK () => git_command context "" Chris@79: ["clone", "--origin", our_remote, Chris@79: "--branch", branch_name branch, Chris@79: url, libname] Chris@79: | ERROR e => ERROR e Chris@79: end Chris@79: Chris@79: fun add_our_remote context (libname, source) = Chris@79: (* When we do the checkout ourselves (above), we add the Chris@79: remote at the same time. But if the repo was cloned by Chris@79: someone else, we'll need to do it after the fact. Git Chris@79: doesn't seem to have a means to add a remote or change its Chris@79: url if it already exists; seems we have to do this: *) Chris@79: let val url = remote_for context (libname, source) Chris@79: in Chris@79: case git_command context libname Chris@79: ["remote", "set-url", our_remote, url] of Chris@79: OK () => OK () Chris@79: | ERROR e => git_command context libname Chris@79: ["remote", "add", "-f", our_remote, url] Chris@79: end Chris@79: Chris@79: (* NB git rev-parse HEAD shows revision id of current checkout; Chris@79: git rev-list -1 shows revision id of revision with that tag *) Chris@79: Chris@79: fun id_of context libname = Chris@79: git_command_output context libname ["rev-parse", "HEAD"] Chris@79: Chris@79: fun is_at context (libname, id_or_tag) = Chris@79: case id_of context libname of Chris@79: ERROR e => OK false (* HEAD nonexistent, expected in empty repo *) Chris@79: | OK id => Chris@79: if String.isPrefix id_or_tag id orelse Chris@79: String.isPrefix id id_or_tag Chris@79: then OK true Chris@79: else is_at_tag context (libname, id, id_or_tag) Chris@79: Chris@79: and is_at_tag context (libname, id, tag) = Chris@79: (* For annotated tags (with message) show-ref returns the tag Chris@79: object ref rather than that of the revision being tagged; Chris@79: we need the subsequent rev-list to chase that up. In fact Chris@79: the rev-list on its own is enough to get us the id direct Chris@79: from the tag name, but it fails with an error if the tag Chris@79: doesn't exist, whereas we want to handle that quietly in Chris@79: case the tag simply hasn't been pulled yet *) Chris@79: case git_command_output context libname Chris@79: ["show-ref", "refs/tags/" ^ tag, "--"] of Chris@79: OK "" => OK false (* Not a tag *) Chris@79: | ERROR _ => OK false Chris@79: | OK s => Chris@79: let val tag_ref = hd (String.tokens (fn c => c = #" ") s) Chris@79: in Chris@79: case git_command_output context libname Chris@79: ["rev-list", "-1", tag_ref] of Chris@79: OK tagged => OK (id = tagged) Chris@79: | ERROR _ => OK false Chris@79: end Chris@79: Chris@79: fun branch_tip context (libname, branch) = Chris@79: (* We don't have access to the source info or the network Chris@79: here, as this is used by status (e.g. via is_on_branch) as Chris@79: well as review. It's possible the remote branch won't exist, Chris@79: e.g. if the repo was checked out by something other than Chris@79: Repoint, and if that's the case, we can't add it here; we'll Chris@79: just have to fail, since checking against local branches Chris@79: instead could produce the wrong result. *) Chris@79: git_command_output context libname Chris@79: ["rev-list", "-1", Chris@79: remote_branch_name branch, "--"] Chris@79: Chris@79: fun is_newest_locally context (libname, branch) = Chris@79: case branch_tip context (libname, branch) of Chris@79: ERROR e => OK false Chris@79: | OK rev => is_at context (libname, rev) Chris@79: Chris@79: fun is_on_branch context (libname, branch) = Chris@79: case branch_tip context (libname, branch) of Chris@79: ERROR e => OK false Chris@79: | OK rev => Chris@79: case is_at context (libname, rev) of Chris@79: ERROR e => ERROR e Chris@79: | OK true => OK true Chris@79: | OK false => Chris@79: case git_command context libname Chris@79: ["merge-base", "--is-ancestor", Chris@79: "HEAD", remote_branch_name branch] of Chris@79: ERROR e => OK false (* cmd returns non-zero for no *) Chris@79: | _ => OK true Chris@79: Chris@79: fun fetch context (libname, source) = Chris@79: case add_our_remote context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | _ => git_command context libname ["fetch", our_remote] Chris@79: Chris@79: fun is_newest context (libname, source, branch) = Chris@79: case add_our_remote context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => Chris@79: case is_newest_locally context (libname, branch) of Chris@79: ERROR e => ERROR e Chris@79: | OK false => OK false Chris@79: | OK true => Chris@79: case fetch context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | _ => is_newest_locally context (libname, branch) Chris@79: Chris@79: fun is_modified_locally context libname = Chris@79: case git_command_output context libname ["status", "--porcelain"] of Chris@79: ERROR e => ERROR e Chris@79: | OK "" => OK false Chris@79: | OK _ => OK true Chris@79: Chris@79: (* This function updates to the latest revision on a branch rather Chris@79: than to a specific id or tag. We can't just checkout the given Chris@79: branch, as that will succeed even if the branch isn't up to Chris@79: date. We could checkout the branch and then fetch and merge, Chris@79: but it's perhaps cleaner not to maintain a local branch at all, Chris@79: but instead checkout the remote branch as a detached head. *) Chris@79: Chris@79: fun update context (libname, source, branch) = Chris@79: case fetch context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | _ => Chris@79: case git_command context libname ["checkout", "--detach", Chris@79: remote_branch_name branch] of Chris@79: ERROR e => ERROR e Chris@79: | _ => OK () Chris@79: Chris@79: (* This function is dealing with a specific id or tag, so if we Chris@79: can successfully check it out (detached) then that's all we Chris@79: need to do, regardless of whether fetch succeeded or not. We do Chris@79: attempt the fetch first, though, purely in order to avoid ugly Chris@79: error messages in the common case where we're being asked to Chris@79: update to a new pin (from the lock file) that hasn't been Chris@79: fetched yet. *) Chris@79: Chris@79: fun update_to context (libname, _, "") = Chris@79: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@79: | update_to context (libname, source, id) = Chris@79: let val fetch_result = fetch context (libname, source) Chris@79: in Chris@79: case git_command context libname ["checkout", "--detach", id] of Chris@79: OK _ => OK () Chris@79: | ERROR e => Chris@79: case fetch_result of Chris@79: ERROR e' => ERROR e' (* this was the ur-error *) Chris@79: | _ => ERROR e Chris@79: end Chris@79: Chris@79: fun copy_url_for context libname = Chris@79: OK (FileBits.file_url (FileBits.libpath context libname)) Chris@79: Chris@79: end Chris@79: Chris@79: (* SubXml - A parser for a subset of XML Chris@79: https://bitbucket.org/cannam/sml-subxml Chris@79: Copyright 2018 Chris Cannam. BSD licence. Chris@79: *) Chris@79: Chris@79: signature SUBXML = sig Chris@79: Chris@79: datatype node = ELEMENT of { name : string, children : node list } Chris@79: | ATTRIBUTE of { name : string, value : string } Chris@79: | TEXT of string Chris@79: | CDATA of string Chris@79: | COMMENT of string Chris@79: Chris@79: datatype document = DOCUMENT of { name : string, children : node list } Chris@79: Chris@79: datatype 'a result = OK of 'a Chris@79: | ERROR of string Chris@79: Chris@79: val parse : string -> document result Chris@79: val serialise : document -> string Chris@79: Chris@79: end Chris@79: Chris@79: structure SubXml :> SUBXML = struct Chris@79: Chris@79: datatype node = ELEMENT of { name : string, children : node list } Chris@79: | ATTRIBUTE of { name : string, value : string } Chris@79: | TEXT of string Chris@79: | CDATA of string Chris@79: | COMMENT of string Chris@79: Chris@79: datatype document = DOCUMENT of { name : string, children : node list } Chris@79: Chris@79: datatype 'a result = OK of 'a Chris@79: | ERROR of string Chris@79: Chris@79: structure T = struct Chris@79: datatype token = ANGLE_L Chris@79: | ANGLE_R Chris@79: | ANGLE_SLASH_L Chris@79: | SLASH_ANGLE_R Chris@79: | EQUAL Chris@79: | NAME of string Chris@79: | TEXT of string Chris@79: | CDATA of string Chris@79: | COMMENT of string Chris@79: Chris@79: fun name t = Chris@79: case t of ANGLE_L => "<" Chris@79: | ANGLE_R => ">" Chris@79: | ANGLE_SLASH_L => " "/>" Chris@79: | EQUAL => "=" Chris@79: | NAME s => "name \"" ^ s ^ "\"" Chris@79: | TEXT s => "text" Chris@79: | CDATA _ => "CDATA section" Chris@79: | COMMENT _ => "comment" Chris@79: end Chris@79: Chris@79: structure Lex :> sig Chris@79: val lex : string -> T.token list result Chris@79: end = struct Chris@79: Chris@79: fun error pos text = Chris@79: ERROR (text ^ " at character position " ^ Int.toString (pos-1)) Chris@79: fun tokenError pos token = Chris@79: error pos ("Unexpected token '" ^ Char.toString token ^ "'") Chris@79: Chris@79: val nameEnd = explode " \t\n\r\"'!=?" Chris@79: Chris@79: fun quoted quote pos acc cc = Chris@79: let fun quoted' pos text [] = Chris@79: error pos "Document ends during quoted string" Chris@79: | quoted' pos text (x::xs) = Chris@79: if x = quote Chris@79: then OK (rev text, xs, pos+1) Chris@79: else quoted' (pos+1) (x::text) xs Chris@79: in Chris@79: case quoted' pos [] cc of Chris@79: ERROR e => ERROR e Chris@79: | OK (text, rest, newpos) => Chris@79: inside newpos (T.TEXT (implode text) :: acc) rest Chris@79: end Chris@79: Chris@79: and name first pos acc cc = Chris@79: let fun name' pos text [] = Chris@79: error pos "Document ends during name" Chris@79: | name' pos text (x::xs) = Chris@79: if List.find (fn c => c = x) nameEnd <> NONE Chris@79: then OK (rev text, (x::xs), pos) Chris@79: else name' (pos+1) (x::text) xs Chris@79: in Chris@79: case name' (pos-1) [] (first::cc) of Chris@79: ERROR e => ERROR e Chris@79: | OK ([], [], pos) => error pos "Document ends before name" Chris@79: | OK ([], (x::xs), pos) => tokenError pos x Chris@79: | OK (text, rest, pos) => Chris@79: inside pos (T.NAME (implode text) :: acc) rest Chris@79: end Chris@79: Chris@79: and comment pos acc cc = Chris@79: let fun comment' pos text cc = Chris@79: case cc of Chris@79: #"-" :: #"-" :: #">" :: xs => OK (rev text, xs, pos+3) Chris@79: | x :: xs => comment' (pos+1) (x::text) xs Chris@79: | [] => error pos "Document ends during comment" Chris@79: in Chris@79: case comment' pos [] cc of Chris@79: ERROR e => ERROR e Chris@79: | OK (text, rest, pos) => Chris@79: outside pos (T.COMMENT (implode text) :: acc) rest Chris@79: end Chris@79: Chris@79: and instruction pos acc cc = Chris@79: case cc of Chris@79: #"?" :: #">" :: xs => outside (pos+2) acc xs Chris@79: | #">" :: _ => tokenError pos #">" Chris@79: | x :: xs => instruction (pos+1) acc xs Chris@79: | [] => error pos "Document ends during processing instruction" Chris@79: Chris@79: and cdata pos acc cc = Chris@79: let fun cdata' pos text cc = Chris@79: case cc of Chris@79: #"]" :: #"]" :: #">" :: xs => OK (rev text, xs, pos+3) Chris@79: | x :: xs => cdata' (pos+1) (x::text) xs Chris@79: | [] => error pos "Document ends during CDATA section" Chris@79: in Chris@79: case cdata' pos [] cc of Chris@79: ERROR e => ERROR e Chris@79: | OK (text, rest, pos) => Chris@79: outside pos (T.CDATA (implode text) :: acc) rest Chris@79: end Chris@79: Chris@79: and doctype pos acc cc = Chris@79: case cc of Chris@79: #">" :: xs => outside (pos+1) acc xs Chris@79: | x :: xs => doctype (pos+1) acc xs Chris@79: | [] => error pos "Document ends during DOCTYPE" Chris@79: Chris@79: and declaration pos acc cc = Chris@79: case cc of Chris@79: #"-" :: #"-" :: xs => Chris@79: comment (pos+2) acc xs Chris@79: | #"[" :: #"C" :: #"D" :: #"A" :: #"T" :: #"A" :: #"[" :: xs => Chris@79: cdata (pos+7) acc xs Chris@79: | #"D" :: #"O" :: #"C" :: #"T" :: #"Y" :: #"P" :: #"E" :: xs => Chris@79: doctype (pos+7) acc xs Chris@79: | [] => error pos "Document ends during declaration" Chris@79: | _ => error pos "Unsupported declaration type" Chris@79: Chris@79: and left pos acc cc = Chris@79: case cc of Chris@79: #"/" :: xs => inside (pos+1) (T.ANGLE_SLASH_L :: acc) xs Chris@79: | #"!" :: xs => declaration (pos+1) acc xs Chris@79: | #"?" :: xs => instruction (pos+1) acc xs Chris@79: | xs => inside pos (T.ANGLE_L :: acc) xs Chris@79: Chris@79: and slash pos acc cc = Chris@79: case cc of Chris@79: #">" :: xs => outside (pos+1) (T.SLASH_ANGLE_R :: acc) xs Chris@79: | x :: _ => tokenError pos x Chris@79: | [] => error pos "Document ends before element closed" Chris@79: Chris@79: and close pos acc xs = outside pos (T.ANGLE_R :: acc) xs Chris@79: Chris@79: and equal pos acc xs = inside pos (T.EQUAL :: acc) xs Chris@79: Chris@79: and outside pos acc [] = OK acc Chris@79: | outside pos acc cc = Chris@79: let fun textOf text = T.TEXT (implode (rev text)) Chris@79: fun outside' pos [] acc [] = OK acc Chris@79: | outside' pos text acc [] = OK (textOf text :: acc) Chris@79: | outside' pos text acc (x::xs) = Chris@79: case x of Chris@79: #"<" => if text = [] Chris@79: then left (pos+1) acc xs Chris@79: else left (pos+1) (textOf text :: acc) xs Chris@79: | x => outside' (pos+1) (x::text) acc xs Chris@79: in Chris@79: outside' pos [] acc cc Chris@79: end Chris@79: Chris@79: and inside pos acc [] = error pos "Document ends within tag" Chris@79: | inside pos acc (#"<"::_) = tokenError pos #"<" Chris@79: | inside pos acc (x::xs) = Chris@79: (case x of Chris@79: #" " => inside | #"\t" => inside Chris@79: | #"\n" => inside | #"\r" => inside Chris@79: | #"\"" => quoted x | #"'" => quoted x Chris@79: | #"/" => slash | #">" => close | #"=" => equal Chris@79: | x => name x) (pos+1) acc xs Chris@79: Chris@79: fun lex str = Chris@79: case outside 1 [] (explode str) of Chris@79: ERROR e => ERROR e Chris@79: | OK tokens => OK (rev tokens) Chris@79: end Chris@79: Chris@79: structure Parse :> sig Chris@79: val parse : string -> document result Chris@79: end = struct Chris@79: Chris@79: fun show [] = "end of input" Chris@79: | show (tok :: _) = T.name tok Chris@79: Chris@79: fun error toks text = ERROR (text ^ " before " ^ show toks) Chris@79: Chris@79: fun attribute elt name toks = Chris@79: case toks of Chris@79: T.EQUAL :: T.TEXT value :: xs => Chris@79: namedElement { Chris@79: name = #name elt, Chris@79: children = ATTRIBUTE { name = name, value = value } :: Chris@79: #children elt Chris@79: } xs Chris@79: | T.EQUAL :: xs => error xs "Expected attribute value" Chris@79: | toks => error toks "Expected attribute assignment" Chris@79: Chris@79: and content elt toks = Chris@79: case toks of Chris@79: T.ANGLE_SLASH_L :: T.NAME n :: T.ANGLE_R :: xs => Chris@79: if n = #name elt Chris@79: then OK (elt, xs) Chris@79: else ERROR ("Closing tag " ^ Chris@79: "does not match opening <" ^ #name elt ^ ">") Chris@79: | T.TEXT text :: xs => Chris@79: content { Chris@79: name = #name elt, Chris@79: children = TEXT text :: #children elt Chris@79: } xs Chris@79: | T.CDATA text :: xs => Chris@79: content { Chris@79: name = #name elt, Chris@79: children = CDATA text :: #children elt Chris@79: } xs Chris@79: | T.COMMENT text :: xs => Chris@79: content { Chris@79: name = #name elt, Chris@79: children = COMMENT text :: #children elt Chris@79: } xs Chris@79: | T.ANGLE_L :: xs => Chris@79: (case element xs of Chris@79: ERROR e => ERROR e Chris@79: | OK (child, xs) => Chris@79: content { Chris@79: name = #name elt, Chris@79: children = ELEMENT child :: #children elt Chris@79: } xs) Chris@79: | tok :: xs => Chris@79: error xs ("Unexpected token " ^ T.name tok) Chris@79: | [] => Chris@79: ERROR ("Document ends within element \"" ^ #name elt ^ "\"") Chris@79: Chris@79: and namedElement elt toks = Chris@79: case toks of Chris@79: T.SLASH_ANGLE_R :: xs => OK (elt, xs) Chris@79: | T.NAME name :: xs => attribute elt name xs Chris@79: | T.ANGLE_R :: xs => content elt xs Chris@79: | x :: xs => error xs ("Unexpected token " ^ T.name x) Chris@79: | [] => ERROR "Document ends within opening tag" Chris@79: Chris@79: and element toks = Chris@79: case toks of Chris@79: T.NAME name :: xs => Chris@79: (case namedElement { name = name, children = [] } xs of Chris@79: ERROR e => ERROR e Chris@79: | OK ({ name, children }, xs) => Chris@79: OK ({ name = name, children = rev children }, xs)) Chris@79: | toks => error toks "Expected element name" Chris@79: Chris@79: and document [] = ERROR "Empty document" Chris@79: | document (tok :: xs) = Chris@79: case tok of Chris@79: T.TEXT _ => document xs Chris@79: | T.COMMENT _ => document xs Chris@79: | T.ANGLE_L => Chris@79: (case element xs of Chris@79: ERROR e => ERROR e Chris@79: | OK (elt, []) => OK (DOCUMENT elt) Chris@79: | OK (elt, (T.TEXT _ :: xs)) => OK (DOCUMENT elt) Chris@79: | OK (elt, xs) => error xs "Extra data after document") Chris@79: | _ => error xs ("Unexpected token " ^ T.name tok) Chris@79: Chris@79: fun parse str = Chris@79: case Lex.lex str of Chris@79: ERROR e => ERROR e Chris@79: | OK tokens => document tokens Chris@79: end Chris@79: Chris@79: structure Serialise :> sig Chris@79: val serialise : document -> string Chris@79: end = struct Chris@79: Chris@79: fun attributes nodes = Chris@79: String.concatWith Chris@79: " " Chris@79: (map node (List.filter Chris@79: (fn ATTRIBUTE _ => true | _ => false) Chris@79: nodes)) Chris@79: Chris@79: and nonAttributes nodes = Chris@79: String.concat Chris@79: (map node (List.filter Chris@79: (fn ATTRIBUTE _ => false | _ => true) Chris@79: nodes)) Chris@79: Chris@79: and node n = Chris@79: case n of Chris@79: TEXT string => Chris@79: string Chris@79: | CDATA string => Chris@79: "" Chris@79: | COMMENT string => Chris@79: "" Chris@79: | ATTRIBUTE { name, value } => Chris@79: name ^ "=" ^ "\"" ^ value ^ "\"" (*!!!*) Chris@79: | ELEMENT { name, children } => Chris@79: "<" ^ name ^ Chris@79: (case (attributes children) of Chris@79: "" => "" Chris@79: | s => " " ^ s) ^ Chris@79: (case (nonAttributes children) of Chris@79: "" => "/>" Chris@79: | s => ">" ^ s ^ "") Chris@79: Chris@79: fun serialise (DOCUMENT { name, children }) = Chris@79: "\n" ^ Chris@79: node (ELEMENT { name = name, children = children }) Chris@79: end Chris@79: Chris@79: val parse = Parse.parse Chris@79: val serialise = Serialise.serialise Chris@79: Chris@79: end Chris@79: Chris@79: Chris@79: structure SvnControl :> VCS_CONTROL = struct Chris@79: Chris@79: val svn_program = "svn" Chris@79: Chris@79: fun svn_command context libname args = Chris@79: FileBits.command context libname (svn_program :: args) Chris@79: Chris@79: fun svn_command_output context libname args = Chris@79: FileBits.command_output context libname (svn_program :: args) Chris@79: Chris@79: fun svn_command_lines context libname args = Chris@79: case svn_command_output context libname args of Chris@79: ERROR e => ERROR e Chris@79: | OK s => OK (String.tokens (fn c => c = #"\n" orelse c = #"\r") s) Chris@79: Chris@79: fun split_line_pair line = Chris@79: let fun strip_leading_ws str = case explode str of Chris@79: #" "::rest => implode rest Chris@79: | _ => str Chris@79: in Chris@79: case String.tokens (fn c => c = #":") line of Chris@79: [] => ("", "") Chris@79: | first::rest => Chris@79: (first, strip_leading_ws (String.concatWith ":" rest)) Chris@79: end Chris@79: Chris@79: fun is_working context = Chris@79: case svn_command_output context "" ["--version"] of Chris@79: OK "" => OK false Chris@79: | OK _ => OK true Chris@79: | ERROR e => ERROR e Chris@79: Chris@79: structure X = SubXml Chris@79: Chris@79: fun svn_info context libname route = Chris@79: (* SVN 1.9 has info --show-item which is just what we need, Chris@79: but at this point we still have 1.8 on the CI boxes so we Chris@79: might as well aim to support it. For that we really have to Chris@79: use the XML output format, since the default info output is Chris@79: localised. This is the only thing our mini-XML parser is Chris@79: used for though, so it would be good to trim it at some Chris@79: point *) Chris@79: let fun find elt [] = OK elt Chris@79: | find { children, ... } (first :: rest) = Chris@79: case List.find (fn (X.ELEMENT { name, ... }) => name = first Chris@79: | _ => false) Chris@79: children of Chris@79: NONE => ERROR ("No element \"" ^ first ^ "\" in SVN XML") Chris@79: | SOME (X.ELEMENT e) => find e rest Chris@79: | SOME _ => ERROR "Internal error" Chris@79: in Chris@79: case svn_command_output context libname ["info", "--xml"] of Chris@79: ERROR e => ERROR e Chris@79: | OK xml => Chris@79: case X.parse xml of Chris@79: X.ERROR e => ERROR e Chris@79: | X.OK (X.DOCUMENT doc) => find doc route Chris@79: end Chris@79: Chris@79: fun exists context libname = Chris@79: OK (OS.FileSys.isDir (FileBits.subpath context libname ".svn")) Chris@79: handle _ => OK false Chris@79: Chris@79: fun remote_for context (libname, source) = Chris@79: Provider.remote_url context SVN source libname Chris@79: Chris@79: (* Remote the checkout came from, not necessarily the one we want *) Chris@79: fun actual_remote_for context libname = Chris@79: case svn_info context libname ["entry", "url"] of Chris@79: ERROR e => ERROR e Chris@79: | OK { children, ... } => Chris@79: case List.find (fn (X.TEXT _) => true | _ => false) children of Chris@79: NONE => ERROR "No content for URL in SVN info XML" Chris@79: | SOME (X.TEXT url) => OK url Chris@79: | SOME _ => ERROR "Internal error" Chris@79: Chris@79: fun id_of context libname = Chris@79: case svn_info context libname ["entry"] of Chris@79: ERROR e => ERROR e Chris@79: | OK { children, ... } => Chris@79: case List.find Chris@79: (fn (X.ATTRIBUTE { name = "revision", ... }) => true Chris@79: | _ => false) Chris@79: children of Chris@79: NONE => ERROR "No revision for entry in SVN info XML" Chris@79: | SOME (X.ATTRIBUTE { value, ... }) => OK value Chris@79: | SOME _ => ERROR "Internal error" Chris@79: Chris@79: fun is_at context (libname, id_or_tag) = Chris@79: case id_of context libname of Chris@79: ERROR e => ERROR e Chris@79: | OK id => OK (id = id_or_tag) Chris@79: Chris@79: fun is_on_branch context (libname, b) = Chris@79: OK (b = DEFAULT_BRANCH) Chris@79: Chris@79: fun check_remote context (libname, source) = Chris@79: case (remote_for context (libname, source), Chris@79: actual_remote_for context libname) of Chris@79: (_, ERROR e) => ERROR e Chris@79: | (url, OK actual) => Chris@79: if actual = url Chris@79: then OK () Chris@79: else svn_command context libname ["relocate", url] Chris@79: Chris@79: fun is_newest context (libname, source, branch) = Chris@79: case check_remote context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => Chris@79: case svn_command_lines context libname Chris@79: ["status", "--show-updates"] of Chris@79: ERROR e => ERROR e Chris@79: | OK lines => Chris@79: case rev lines of Chris@79: [] => ERROR "No result returned for server status" Chris@79: | last_line::_ => Chris@79: case rev (String.tokens (fn c => c = #" ") last_line) of Chris@79: [] => ERROR "No revision field found in server status" Chris@79: | server_id::_ => is_at context (libname, server_id) Chris@79: Chris@79: fun is_newest_locally context (libname, branch) = Chris@79: OK true (* no local history *) Chris@79: Chris@79: fun is_modified_locally context libname = Chris@79: case svn_command_output context libname ["status"] of Chris@79: ERROR e => ERROR e Chris@79: | OK "" => OK false Chris@79: | OK _ => OK true Chris@79: Chris@79: fun checkout context (libname, source, branch) = Chris@79: let val url = remote_for context (libname, source) Chris@79: val path = FileBits.libpath context libname Chris@79: in Chris@79: if FileBits.nonempty_dir_exists path Chris@79: then (* Surprisingly, SVN itself has no problem with Chris@79: this. But for consistency with other VCSes we Chris@79: don't allow it *) Chris@79: ERROR ("Refusing checkout to nonempty dir \"" ^ path ^ "\"") Chris@79: else Chris@79: (* make the lib dir rather than just the ext dir, since Chris@79: the lib dir might be nested and svn will happily check Chris@79: out into an existing empty dir anyway *) Chris@79: case FileBits.mkpath (FileBits.libpath context libname) of Chris@79: ERROR e => ERROR e Chris@79: | _ => svn_command context "" ["checkout", url, libname] Chris@79: end Chris@79: Chris@79: fun update context (libname, source, branch) = Chris@79: case check_remote context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => Chris@79: case svn_command context libname Chris@79: ["update", "--accept", "postpone"] of Chris@79: ERROR e => ERROR e Chris@79: | _ => OK () Chris@79: Chris@79: fun update_to context (libname, _, "") = Chris@79: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@79: | update_to context (libname, source, id) = Chris@79: case check_remote context (libname, source) of Chris@79: ERROR e => ERROR e Chris@79: | OK () => Chris@79: case svn_command context libname Chris@79: ["update", "-r", id, "--accept", "postpone"] of Chris@79: ERROR e => ERROR e Chris@79: | OK _ => OK () Chris@79: Chris@79: fun copy_url_for context libname = Chris@79: actual_remote_for context libname Chris@79: Chris@79: end Chris@79: Chris@79: structure AnyLibControl :> LIB_CONTROL = struct Chris@79: Chris@79: structure H = LibControlFn(HgControl) Chris@79: structure G = LibControlFn(GitControl) Chris@79: structure S = LibControlFn(SvnControl) Chris@79: Chris@79: fun review context (spec as { vcs, ... } : libspec) = Chris@79: (fn HG => H.review | GIT => G.review | SVN => S.review) vcs context spec Chris@79: Chris@79: fun status context (spec as { vcs, ... } : libspec) = Chris@79: (fn HG => H.status | GIT => G.status | SVN => S.status) vcs context spec Chris@79: Chris@79: fun update context (spec as { vcs, ... } : libspec) = Chris@79: (fn HG => H.update | GIT => G.update | SVN => S.update) vcs context spec Chris@79: Chris@79: fun id_of context (spec as { vcs, ... } : libspec) = Chris@79: (fn HG => H.id_of | GIT => G.id_of | SVN => S.id_of) vcs context spec Chris@79: Chris@79: fun is_working context vcs = Chris@79: (fn HG => H.is_working | GIT => G.is_working | SVN => S.is_working) Chris@79: vcs context vcs Chris@79: Chris@79: end Chris@79: Chris@79: Chris@79: type exclusions = string list Chris@79: Chris@79: structure Archive :> sig Chris@79: Chris@79: val archive : string * exclusions -> project -> OS.Process.status Chris@79: Chris@79: end = struct Chris@79: Chris@79: (* The idea of "archive" is to replace hg/git archive, which won't Chris@79: include files, like the Repoint-introduced external libraries, Chris@79: that are not under version control with the main repo. Chris@79: Chris@79: The process goes like this: Chris@79: Chris@79: - Make sure we have a target filename from the user, and take Chris@79: its basename as our archive directory name Chris@79: Chris@79: - Make an "archive root" subdir of the project repo, named Chris@79: typically .repoint-archive Chris@79: Chris@79: - Identify the VCS used for the project repo. Note that any Chris@79: explicit references to VCS type in this structure are to Chris@79: the VCS used for the project (something Repoint doesn't Chris@79: otherwise care about), not for an individual library Chris@79: Chris@79: - Synthesise a Repoint project with the archive root as its Chris@79: root path, "." as its extdir, with one library whose Chris@79: name is the user-supplied basename and whose explicit Chris@79: source URL is the original project root; update that Chris@79: project -- thus cloning the original project to a subdir Chris@79: of the archive root Chris@79: Chris@79: - Synthesise a Repoint project identical to the original one for Chris@79: this project, but with the newly-cloned copy as its root Chris@79: path; update that project -- thus checking out clean copies Chris@79: of the external library dirs Chris@79: Chris@79: - Call out to an archive program to archive up the new copy, Chris@79: running e.g. Chris@79: tar cvzf project-release.tar.gz \ Chris@79: --exclude=.hg --exclude=.git project-release Chris@79: in the archive root dir Chris@79: Chris@79: - (We also omit the repoint-project.json file and any trace of Chris@79: Repoint. It can't properly be run in a directory where the Chris@79: external project folders already exist but their repo history Chris@79: does not. End users shouldn't get to see Repoint) Chris@79: Chris@79: - Clean up by deleting the new copy Chris@79: *) Chris@79: Chris@79: fun project_vcs_id_and_url dir = Chris@79: let val context = { Chris@79: rootpath = dir, Chris@79: extdir = ".", Chris@79: providers = [], Chris@79: accounts = [] Chris@79: } Chris@79: val vcs_maybe = Chris@79: case [HgControl.exists context ".", Chris@79: GitControl.exists context ".", Chris@79: SvnControl.exists context "."] of Chris@79: [OK true, OK false, OK false] => OK HG Chris@79: | [OK false, OK true, OK false] => OK GIT Chris@79: | [OK false, OK false, OK true] => OK SVN Chris@79: | _ => ERROR ("Unable to identify VCS for directory " ^ dir) Chris@79: in Chris@79: case vcs_maybe of Chris@79: ERROR e => ERROR e Chris@79: | OK vcs => Chris@79: case (fn HG => HgControl.id_of Chris@79: | GIT => GitControl.id_of Chris@79: | SVN => SvnControl.id_of) Chris@79: vcs context "." of Chris@79: ERROR e => ERROR ("Unable to find id of project repo: " ^ e) Chris@79: | OK id => Chris@79: case (fn HG => HgControl.copy_url_for Chris@79: | GIT => GitControl.copy_url_for Chris@79: | SVN => SvnControl.copy_url_for) Chris@79: vcs context "." of Chris@79: ERROR e => ERROR ("Unable to find URL of project repo: " Chris@79: ^ e) Chris@79: | OK url => OK (vcs, id, url) Chris@79: end Chris@79: Chris@79: fun make_archive_root (context : context) = Chris@79: let val path = OS.Path.joinDirFile { Chris@79: dir = #rootpath context, Chris@79: file = RepointFilenames.archive_dir Chris@79: } Chris@79: in Chris@79: case FileBits.mkpath path of Chris@79: ERROR e => raise Fail ("Failed to create archive directory \"" Chris@79: ^ path ^ "\": " ^ e) Chris@79: | OK () => path Chris@79: end Chris@79: Chris@79: fun archive_path archive_dir target_name = Chris@79: OS.Path.joinDirFile { Chris@79: dir = archive_dir, Chris@79: file = target_name Chris@79: } Chris@79: Chris@79: fun check_nonexistent path = Chris@79: case SOME (OS.FileSys.fileSize path) handle OS.SysErr _ => NONE of Chris@79: NONE => () Chris@79: | _ => raise Fail ("Path " ^ path ^ " exists, not overwriting") Chris@79: Chris@79: fun make_archive_copy target_name (vcs, project_id, source_url) Chris@79: ({ context, ... } : project) = Chris@79: let val archive_root = make_archive_root context Chris@79: val synthetic_context = { Chris@79: rootpath = archive_root, Chris@79: extdir = ".", Chris@79: providers = [], Chris@79: accounts = [] Chris@79: } Chris@79: val synthetic_library = { Chris@79: libname = target_name, Chris@79: vcs = vcs, Chris@79: source = URL_SOURCE source_url, Chris@79: branch = DEFAULT_BRANCH, (* overridden by pinned id below *) Chris@79: project_pin = PINNED project_id, Chris@79: lock_pin = PINNED project_id Chris@79: } Chris@79: val path = archive_path archive_root target_name Chris@79: val _ = print ("Cloning original project to " ^ path Chris@79: ^ " at revision " ^ project_id ^ "...\n"); Chris@79: val _ = check_nonexistent path Chris@79: in Chris@79: case AnyLibControl.update synthetic_context synthetic_library of Chris@79: ERROR e => ERROR ("Failed to clone original project to " Chris@79: ^ path ^ ": " ^ e) Chris@79: | OK _ => OK archive_root Chris@79: end Chris@79: Chris@79: fun update_archive archive_root target_name Chris@79: (project as { context, ... } : project) = Chris@79: let val synthetic_context = { Chris@79: rootpath = archive_path archive_root target_name, Chris@79: extdir = #extdir context, Chris@79: providers = #providers context, Chris@79: accounts = #accounts context Chris@79: } Chris@79: in Chris@79: foldl (fn (lib, acc) => Chris@79: case acc of Chris@79: ERROR e => ERROR e Chris@79: | OK () => AnyLibControl.update synthetic_context lib) Chris@79: (OK ()) Chris@79: (#libs project) Chris@79: end Chris@79: Chris@79: datatype packer = TAR Chris@79: | TAR_GZ Chris@79: | TAR_BZ2 Chris@79: | TAR_XZ Chris@79: (* could add other packers, e.g. zip, if we knew how to Chris@79: handle the file omissions etc properly in pack_archive *) Chris@79: Chris@79: fun packer_and_basename path = Chris@79: let val extensions = [ (".tar", TAR), Chris@79: (".tar.gz", TAR_GZ), Chris@79: (".tar.bz2", TAR_BZ2), Chris@79: (".tar.xz", TAR_XZ)] Chris@79: val filename = OS.Path.file path Chris@79: in Chris@79: foldl (fn ((ext, packer), acc) => Chris@79: if String.isSuffix ext filename Chris@79: then SOME (packer, Chris@79: String.substring (filename, 0, Chris@79: String.size filename - Chris@79: String.size ext)) Chris@79: else acc) Chris@79: NONE Chris@79: extensions Chris@79: end Chris@79: Chris@79: fun pack_archive archive_root target_name target_path packer exclusions = Chris@79: case FileBits.command { Chris@79: rootpath = archive_root, Chris@79: extdir = ".", Chris@79: providers = [], Chris@79: accounts = [] Chris@79: } "" ([ Chris@79: "tar", Chris@79: case packer of Chris@79: TAR => "cf" Chris@79: | TAR_GZ => "czf" Chris@79: | TAR_BZ2 => "cjf" Chris@79: | TAR_XZ => "cJf", Chris@79: target_path, Chris@79: "--exclude=.hg", Chris@79: "--exclude=.git", Chris@79: "--exclude=.svn", Chris@79: "--exclude=repoint", Chris@79: "--exclude=repoint.sml", Chris@79: "--exclude=repoint.ps1", Chris@79: "--exclude=repoint.bat", Chris@79: "--exclude=repoint-project.json", Chris@79: "--exclude=repoint-lock.json" Chris@79: ] @ (map (fn e => "--exclude=" ^ e) exclusions) @ Chris@79: [ target_name ]) Chris@79: of Chris@79: ERROR e => ERROR e Chris@79: | OK _ => FileBits.rmpath (archive_path archive_root target_name) Chris@79: Chris@79: fun archive (target_path, exclusions) (project : project) = Chris@79: let val _ = check_nonexistent target_path Chris@79: val (packer, name) = Chris@79: case packer_and_basename target_path of Chris@79: NONE => raise Fail ("Unsupported archive file extension in " Chris@79: ^ target_path) Chris@79: | SOME pn => pn Chris@79: val details = Chris@79: case project_vcs_id_and_url (#rootpath (#context project)) of Chris@79: ERROR e => raise Fail e Chris@79: | OK details => details Chris@79: val archive_root = Chris@79: case make_archive_copy name details project of Chris@79: ERROR e => raise Fail e Chris@79: | OK archive_root => archive_root Chris@79: val outcome = Chris@79: case update_archive archive_root name project of Chris@79: ERROR e => ERROR e Chris@79: | OK _ => Chris@79: case pack_archive archive_root name Chris@79: target_path packer exclusions of Chris@79: ERROR e => ERROR e Chris@79: | OK _ => OK () Chris@79: in Chris@79: case outcome of Chris@79: ERROR e => raise Fail e Chris@79: | OK () => OS.Process.success Chris@79: end Chris@79: Chris@79: end Chris@79: Chris@79: val libobjname = "libraries" Chris@79: Chris@79: fun load_libspec spec_json lock_json libname : libspec = Chris@79: let open JsonBits Chris@79: val libobj = lookup_mandatory spec_json [libobjname, libname] Chris@79: val vcs = lookup_mandatory_string libobj ["vcs"] Chris@79: val retrieve = lookup_optional_string libobj Chris@79: val service = retrieve ["service"] Chris@79: val owner = retrieve ["owner"] Chris@79: val repo = retrieve ["repository"] Chris@79: val url = retrieve ["url"] Chris@79: val branch = retrieve ["branch"] Chris@79: val project_pin = case retrieve ["pin"] of Chris@79: NONE => UNPINNED Chris@79: | SOME p => PINNED p Chris@79: val lock_pin = case lookup_optional lock_json [libobjname, libname] of Chris@79: NONE => UNPINNED Chris@79: | SOME ll => case lookup_optional_string ll ["pin"] of Chris@79: SOME p => PINNED p Chris@79: | NONE => UNPINNED Chris@79: in Chris@79: { Chris@79: libname = libname, Chris@79: vcs = case vcs of Chris@79: "hg" => HG Chris@79: | "git" => GIT Chris@79: | "svn" => SVN Chris@79: | other => raise Fail ("Unknown version-control system \"" ^ Chris@79: other ^ "\""), Chris@79: source = case (url, service, owner, repo) of Chris@79: (SOME u, NONE, _, _) => URL_SOURCE u Chris@79: | (NONE, SOME ss, owner, repo) => Chris@79: SERVICE_SOURCE { service = ss, owner = owner, repo = repo } Chris@79: | _ => raise Fail ("Must have exactly one of service " ^ Chris@79: "or url string"), Chris@79: project_pin = project_pin, Chris@79: lock_pin = lock_pin, Chris@79: branch = case branch of Chris@79: NONE => DEFAULT_BRANCH Chris@79: | SOME b => Chris@79: case vcs of Chris@79: "svn" => raise Fail ("Branches not supported for " ^ Chris@79: "svn repositories; change " ^ Chris@79: "URL instead") Chris@79: | _ => BRANCH b Chris@79: } Chris@79: end Chris@79: Chris@79: fun load_userconfig () : userconfig = Chris@79: let val home = FileBits.homedir () Chris@79: val conf_json = Chris@79: JsonBits.load_json_from Chris@79: (OS.Path.joinDirFile { Chris@79: dir = home, Chris@79: file = RepointFilenames.user_config_file }) Chris@79: handle IO.Io _ => Json.OBJECT [] Chris@79: in Chris@79: { Chris@79: accounts = case JsonBits.lookup_optional conf_json ["accounts"] of Chris@79: NONE => [] Chris@79: | SOME (Json.OBJECT aa) => Chris@79: map (fn (k, (Json.STRING v)) => Chris@79: { service = k, login = v } Chris@79: | _ => raise Fail Chris@79: "String expected for account name") Chris@79: aa Chris@79: | _ => raise Fail "Array expected for accounts", Chris@79: providers = Provider.load_providers conf_json Chris@79: } Chris@79: end Chris@79: Chris@79: datatype pintype = Chris@79: NO_LOCKFILE | Chris@79: USE_LOCKFILE Chris@79: Chris@79: fun load_project (userconfig : userconfig) rootpath pintype : project = Chris@79: let val spec_file = FileBits.project_spec_path rootpath Chris@79: val lock_file = FileBits.project_lock_path rootpath Chris@79: val _ = if OS.FileSys.access (spec_file, [OS.FileSys.A_READ]) Chris@79: handle OS.SysErr _ => false Chris@79: then () Chris@79: else raise Fail ("Failed to open project spec file " ^ Chris@79: (RepointFilenames.project_file) ^ " in " ^ Chris@79: rootpath ^ Chris@79: ".\nPlease ensure the spec file is in the " ^ Chris@79: "project root and run this from there.") Chris@79: val spec_json = JsonBits.load_json_from spec_file Chris@79: val lock_json = if pintype = USE_LOCKFILE Chris@79: then JsonBits.load_json_from lock_file Chris@79: handle IO.Io _ => Json.OBJECT [] Chris@79: else Json.OBJECT [] Chris@79: val extdir = JsonBits.lookup_mandatory_string spec_json Chris@79: ["config", "extdir"] Chris@79: val spec_libs = JsonBits.lookup_optional spec_json [libobjname] Chris@79: val lock_libs = JsonBits.lookup_optional lock_json [libobjname] Chris@79: val providers = Provider.load_more_providers Chris@79: (#providers userconfig) spec_json Chris@79: val libnames = case spec_libs of Chris@79: NONE => [] Chris@79: | SOME (Json.OBJECT ll) => map (fn (k, v) => k) ll Chris@79: | _ => raise Fail "Object expected for libs" Chris@79: in Chris@79: { Chris@79: context = { Chris@79: rootpath = rootpath, Chris@79: extdir = extdir, Chris@79: providers = providers, Chris@79: accounts = #accounts userconfig Chris@79: }, Chris@79: libs = map (load_libspec spec_json lock_json) libnames Chris@79: } Chris@79: end Chris@79: Chris@79: fun save_lock_file rootpath locks = Chris@79: let val lock_file = FileBits.project_lock_path rootpath Chris@79: open Json Chris@79: val lock_json = Chris@79: OBJECT [ Chris@79: (libobjname, Chris@79: OBJECT (map (fn { libname, id_or_tag } => Chris@79: (libname, Chris@79: OBJECT [ ("pin", STRING id_or_tag) ])) Chris@79: locks)) Chris@79: ] Chris@79: in Chris@79: JsonBits.save_json_to lock_file lock_json Chris@79: end Chris@79: Chris@79: fun checkpoint_completion_file rootpath = Chris@79: let val completion_file = FileBits.project_completion_path rootpath Chris@79: val stream = TextIO.openOut completion_file Chris@79: in Chris@79: TextIO.closeOut stream Chris@79: end Chris@79: Chris@79: fun pad_to n str = Chris@79: if n <= String.size str then str Chris@79: else pad_to n (str ^ " ") Chris@79: Chris@79: fun hline_to 0 = "" Chris@79: | hline_to n = "-" ^ hline_to (n-1) Chris@79: Chris@79: val libname_width = 28 Chris@79: val libstate_width = 11 Chris@79: val localstate_width = 17 Chris@79: val notes_width = 5 Chris@79: val divider = " | " Chris@79: val clear_line = "\r" ^ pad_to 80 ""; Chris@79: Chris@79: fun print_status_header () = Chris@79: print (clear_line ^ "\n " ^ Chris@79: pad_to libname_width "Library" ^ divider ^ Chris@79: pad_to libstate_width "State" ^ divider ^ Chris@79: pad_to localstate_width "Local" ^ divider ^ Chris@79: "Notes" ^ "\n " ^ Chris@79: hline_to libname_width ^ "-+-" ^ Chris@79: hline_to libstate_width ^ "-+-" ^ Chris@79: hline_to localstate_width ^ "-+-" ^ Chris@79: hline_to notes_width ^ "\n") Chris@79: Chris@79: fun print_outcome_header () = Chris@79: print (clear_line ^ "\n " ^ Chris@79: pad_to libname_width "Library" ^ divider ^ Chris@79: pad_to libstate_width "Outcome" ^ divider ^ Chris@79: "Notes" ^ "\n " ^ Chris@79: hline_to libname_width ^ "-+-" ^ Chris@79: hline_to libstate_width ^ "-+-" ^ Chris@79: hline_to notes_width ^ "\n") Chris@79: Chris@79: fun print_status with_network (lib : libspec, status) = Chris@79: let val libstate_str = Chris@79: case status of Chris@79: OK (ABSENT, _) => "Absent" Chris@79: | OK (CORRECT, _) => if with_network then "Correct" else "Present" Chris@79: | OK (SUPERSEDED, _) => "Superseded" Chris@79: | OK (WRONG, _) => "Wrong" Chris@79: | ERROR _ => "Error" Chris@79: val localstate_str = Chris@79: case status of Chris@79: OK (_, MODIFIED) => "Modified" Chris@79: | OK (_, LOCK_MISMATCHED) => "Differs from Lock" Chris@79: | OK (_, CLEAN) => "Clean" Chris@79: | ERROR _ => "" Chris@79: val error_str = Chris@79: case status of Chris@79: ERROR e => e Chris@79: | _ => "" Chris@79: in Chris@79: print (" " ^ Chris@79: pad_to libname_width (#libname lib) ^ divider ^ Chris@79: pad_to libstate_width libstate_str ^ divider ^ Chris@79: pad_to localstate_width localstate_str ^ divider ^ Chris@79: error_str ^ "\n") Chris@79: end Chris@79: Chris@79: fun print_update_outcome (lib : libspec, outcome) = Chris@79: let val outcome_str = Chris@79: case outcome of Chris@79: OK id => "Ok" Chris@79: | ERROR e => "Failed" Chris@79: val error_str = Chris@79: case outcome of Chris@79: ERROR e => e Chris@79: | _ => "" Chris@79: in Chris@79: print (" " ^ Chris@79: pad_to libname_width (#libname lib) ^ divider ^ Chris@79: pad_to libstate_width outcome_str ^ divider ^ Chris@79: error_str ^ "\n") Chris@79: end Chris@79: Chris@79: fun vcs_name HG = ("Mercurial", "hg") Chris@79: | vcs_name GIT = ("Git", "git") Chris@79: | vcs_name SVN = ("Subversion", "svn") Chris@79: Chris@79: fun print_problem_summary context lines = Chris@79: let val failed_vcs = Chris@79: foldl (fn (({ vcs, ... } : libspec, ERROR _), acc) => vcs::acc Chris@79: | (_, acc) => acc) [] lines Chris@79: fun report_nonworking vcs error = Chris@79: print ((if error = "" then "" else error ^ "\n\n") ^ Chris@79: "Error: The project uses the " ^ (#1 (vcs_name vcs)) ^ Chris@79: " version control system, but its\n" ^ Chris@79: "executable program (" ^ (#2 (vcs_name vcs)) ^ Chris@79: ") does not appear to be installed in the program path\n\n") Chris@79: fun check_working [] checked = () Chris@79: | check_working (vcs::rest) checked = Chris@79: if List.exists (fn v => vcs = v) checked Chris@79: then check_working rest checked Chris@79: else Chris@79: case AnyLibControl.is_working context vcs of Chris@79: OK true => check_working rest checked Chris@79: | OK false => (report_nonworking vcs ""; Chris@79: check_working rest (vcs::checked)) Chris@79: | ERROR e => (report_nonworking vcs e; Chris@79: check_working rest (vcs::checked)) Chris@79: in Chris@79: print "\nError: Some operations failed\n\n"; Chris@79: check_working failed_vcs [] Chris@79: end Chris@79: Chris@79: fun act_and_print action print_header print_line context (libs : libspec list) = Chris@79: let val lines = map (fn lib => (lib, action lib)) libs Chris@79: val imperfect = List.exists (fn (_, ERROR _) => true | _ => false) lines Chris@79: val _ = print_header () Chris@79: in Chris@79: app print_line lines; Chris@79: if imperfect then print_problem_summary context lines else (); Chris@79: lines Chris@79: end Chris@79: Chris@79: fun return_code_for outcomes = Chris@79: foldl (fn ((_, result), acc) => Chris@79: case result of Chris@79: ERROR _ => OS.Process.failure Chris@79: | _ => acc) Chris@79: OS.Process.success Chris@79: outcomes Chris@79: Chris@79: fun status_of_project ({ context, libs } : project) = Chris@79: return_code_for (act_and_print (AnyLibControl.status context) Chris@79: print_status_header (print_status false) Chris@79: context libs) Chris@79: Chris@79: fun review_project ({ context, libs } : project) = Chris@79: return_code_for (act_and_print (AnyLibControl.review context) Chris@79: print_status_header (print_status true) Chris@79: context libs) Chris@79: Chris@79: fun lock_project ({ context, libs } : project) = Chris@79: let val _ = if FileBits.verbose () Chris@79: then print ("Scanning IDs for lock file...\n") Chris@79: else () Chris@79: val outcomes = map (fn lib => (lib, AnyLibControl.id_of context lib)) Chris@79: libs Chris@79: val locks = Chris@79: List.concat Chris@79: (map (fn (lib : libspec, result) => Chris@79: case result of Chris@79: ERROR _ => [] Chris@79: | OK id => [{ libname = #libname lib, Chris@79: id_or_tag = id }]) Chris@79: outcomes) Chris@79: val return_code = return_code_for outcomes Chris@79: val _ = print clear_line Chris@79: in Chris@79: if OS.Process.isSuccess return_code Chris@79: then save_lock_file (#rootpath context) locks Chris@79: else (); Chris@79: return_code Chris@79: end Chris@79: Chris@79: fun update_project (project as { context, libs }) = Chris@79: let val outcomes = act_and_print Chris@79: (AnyLibControl.update context) Chris@79: print_outcome_header print_update_outcome Chris@79: context libs Chris@79: val _ = if List.exists (fn (_, OK _) => true | _ => false) outcomes Chris@79: then lock_project project Chris@79: else OS.Process.success Chris@79: val return_code = return_code_for outcomes Chris@79: in Chris@79: if OS.Process.isSuccess return_code Chris@79: then checkpoint_completion_file (#rootpath context) Chris@79: else (); Chris@79: return_code Chris@79: end Chris@79: Chris@79: fun load_local_project pintype = Chris@79: let val userconfig = load_userconfig () Chris@79: val rootpath = OS.FileSys.getDir () Chris@79: in Chris@79: load_project userconfig rootpath pintype Chris@79: end Chris@79: Chris@79: fun with_local_project pintype f = Chris@79: let open OS.Process Chris@79: val return_code = Chris@79: f (load_local_project pintype) Chris@79: handle Fail msg => Chris@79: failure before print ("Error: " ^ msg) Chris@79: | JsonBits.Config msg => Chris@79: failure before print ("Error in configuration: " ^ msg) Chris@79: | e => Chris@79: failure before print ("Error: " ^ exnMessage e) Chris@79: val _ = print "\n"; Chris@79: in Chris@79: return_code Chris@79: end Chris@79: Chris@79: fun review () = with_local_project USE_LOCKFILE review_project Chris@79: fun status () = with_local_project USE_LOCKFILE status_of_project Chris@79: fun update () = with_local_project NO_LOCKFILE update_project Chris@79: fun lock () = with_local_project NO_LOCKFILE lock_project Chris@79: fun install () = with_local_project USE_LOCKFILE update_project Chris@79: Chris@79: fun version () = Chris@79: (print ("v" ^ repoint_version ^ "\n"); Chris@79: OS.Process.success) Chris@79: Chris@79: fun usage () = Chris@79: (print "\nRepoint "; Chris@79: version (); Chris@79: print ("\n A simple manager for third-party source code dependencies.\n" Chris@79: ^ " http://all-day-breakfast.com/repoint/\n\n" Chris@79: ^ "Usage:\n\n" Chris@79: ^ " repoint []\n\n" Chris@79: ^ "where is one of:\n\n" Chris@79: ^ " status print quick report on local status only, without using network\n" Chris@79: ^ " review check configured libraries against their providers, and report\n" Chris@79: ^ " install update configured libraries according to project specs and lock file\n" Chris@79: ^ " update update configured libraries and lock file according to project specs\n" Chris@79: ^ " lock rewrite lock file to match local library status\n" Chris@79: ^ " archive pack up project and all libraries into an archive file:\n" Chris@79: ^ " invoke as 'repoint archive targetfile.tar.gz --exclude unwanted.txt'\n" Chris@79: ^ " version print the Repoint version number and exit\n\n" Chris@79: ^ "and may include:\n\n" Chris@79: ^ " --directory \n" Chris@79: ^ " change to directory before doing anything; in particular,\n" Chris@79: ^ " expect to find project spec file in that directory\n\n"); Chris@79: OS.Process.failure) Chris@79: Chris@79: fun archive target args = Chris@79: case args of Chris@79: [] => Chris@79: with_local_project USE_LOCKFILE (Archive.archive (target, [])) Chris@79: | "--exclude"::xs => Chris@79: with_local_project USE_LOCKFILE (Archive.archive (target, xs)) Chris@79: | _ => usage () Chris@79: Chris@79: fun handleSystemArgs args = Chris@79: let fun handleSystemArgs' leftover args = Chris@79: case args of Chris@79: "--directory"::dir::rest => Chris@79: (OS.FileSys.chDir dir; Chris@79: handleSystemArgs' leftover rest) Chris@79: | arg::rest => Chris@79: handleSystemArgs' (leftover @ [arg]) rest Chris@79: | [] => leftover Chris@79: in Chris@79: OK (handleSystemArgs' [] args) Chris@79: handle e => ERROR (exnMessage e) Chris@79: end Chris@79: Chris@79: fun repoint args = Chris@79: case handleSystemArgs args of Chris@79: ERROR e => (print ("Error: " ^ e ^ "\n"); Chris@79: OS.Process.exit OS.Process.failure) Chris@79: | OK args => Chris@79: let val return_code = Chris@79: case args of Chris@79: ["review"] => review () Chris@79: | ["status"] => status () Chris@79: | ["install"] => install () Chris@79: | ["update"] => update () Chris@79: | ["lock"] => lock () Chris@79: | ["version"] => version () Chris@79: | "archive"::target::args => archive target args Chris@79: | arg::_ => (print ("Error: unknown argument \"" ^ arg ^ "\"\n"); Chris@79: usage ()) Chris@79: | _ => usage () Chris@79: in Chris@79: OS.Process.exit return_code Chris@79: end Chris@79: Chris@79: fun main () = Chris@79: repoint (CommandLine.arguments ())