Chris@70: (* Chris@70: DO NOT EDIT THIS FILE. Chris@70: This file is automatically generated from the individual Chris@76: source files in the Repoint repository. Chris@70: *) Chris@70: Chris@70: (* Chris@76: Repoint Chris@70: Chris@70: A simple manager for third-party source code dependencies Chris@70: Chris@70: Copyright 2018 Chris Cannam, Particular Programs Ltd, Chris@70: and Queen Mary, University of London Chris@70: Chris@70: Permission is hereby granted, free of charge, to any person Chris@70: obtaining a copy of this software and associated documentation Chris@70: files (the "Software"), to deal in the Software without Chris@70: restriction, including without limitation the rights to use, copy, Chris@70: modify, merge, publish, distribute, sublicense, and/or sell copies Chris@70: of the Software, and to permit persons to whom the Software is Chris@70: furnished to do so, subject to the following conditions: Chris@70: Chris@70: The above copyright notice and this permission notice shall be Chris@70: included in all copies or substantial portions of the Software. Chris@70: Chris@70: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, Chris@70: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF Chris@70: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND Chris@70: NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR Chris@70: ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF Chris@70: CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION Chris@70: WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Chris@70: Chris@70: Except as contained in this notice, the names of Chris Cannam, Chris@70: Particular Programs Ltd, and Queen Mary, University of London Chris@70: shall not be used in advertising or otherwise to promote the sale, Chris@70: use or other dealings in this Software without prior written Chris@70: authorization. Chris@70: *) Chris@70: Chris@76: val repoint_version = "0.9.98" Chris@70: Chris@70: Chris@70: datatype vcs = Chris@70: HG | Chris@70: GIT | Chris@70: SVN Chris@70: Chris@70: datatype source = Chris@70: URL_SOURCE of string | Chris@70: SERVICE_SOURCE of { Chris@70: service : string, Chris@70: owner : string option, Chris@70: repo : string option Chris@70: } Chris@70: Chris@70: type id_or_tag = string Chris@70: Chris@70: datatype pin = Chris@70: UNPINNED | Chris@70: PINNED of id_or_tag Chris@70: Chris@70: datatype libstate = Chris@70: ABSENT | Chris@70: CORRECT | Chris@70: SUPERSEDED | Chris@70: WRONG Chris@70: Chris@70: datatype localstate = Chris@70: MODIFIED | Chris@70: LOCK_MISMATCHED | Chris@70: CLEAN Chris@70: Chris@70: datatype branch = Chris@70: BRANCH of string | Chris@70: DEFAULT_BRANCH Chris@70: Chris@70: (* If we can recover from an error, for example by reporting failure Chris@70: for this one thing and going on to the next thing, then the error Chris@70: should usually be returned through a result type rather than an Chris@70: exception. *) Chris@70: Chris@70: datatype 'a result = Chris@70: OK of 'a | Chris@70: ERROR of string Chris@70: Chris@70: type libname = string Chris@70: Chris@70: type libspec = { Chris@70: libname : libname, Chris@70: vcs : vcs, Chris@70: source : source, Chris@70: branch : branch, Chris@70: project_pin : pin, Chris@70: lock_pin : pin Chris@70: } Chris@70: Chris@70: type lock = { Chris@70: libname : libname, Chris@70: id_or_tag : id_or_tag Chris@70: } Chris@70: Chris@70: type remote_spec = { Chris@70: anon : string option, Chris@70: auth : string option Chris@70: } Chris@70: Chris@70: type provider = { Chris@70: service : string, Chris@70: supports : vcs list, Chris@70: remote_spec : remote_spec Chris@70: } Chris@70: Chris@70: type account = { Chris@70: service : string, Chris@70: login : string Chris@70: } Chris@70: Chris@70: type context = { Chris@70: rootpath : string, Chris@70: extdir : string, Chris@70: providers : provider list, Chris@70: accounts : account list Chris@70: } Chris@70: Chris@70: type userconfig = { Chris@70: providers : provider list, Chris@70: accounts : account list Chris@70: } Chris@70: Chris@70: type project = { Chris@70: context : context, Chris@70: libs : libspec list Chris@70: } Chris@70: Chris@76: structure RepointFilenames = struct Chris@76: val project_file = "repoint-project.json" Chris@76: val project_lock_file = "repoint-lock.json" Chris@76: val user_config_file = ".repoint.json" Chris@76: val archive_dir = ".repoint-archive" Chris@70: end Chris@70: Chris@70: signature VCS_CONTROL = sig Chris@70: Chris@76: (** Check whether the given VCS is installed and working *) Chris@76: val is_working : context -> bool result Chris@76: Chris@70: (** Test whether the library is present locally at all *) Chris@70: val exists : context -> libname -> bool result Chris@70: Chris@70: (** Return the id (hash) of the current revision for the library *) Chris@70: val id_of : context -> libname -> id_or_tag result Chris@70: Chris@70: (** Test whether the library is at the given id *) Chris@70: val is_at : context -> libname * id_or_tag -> bool result Chris@70: Chris@70: (** Test whether the library is on the given branch, i.e. is at Chris@70: the branch tip or an ancestor of it *) Chris@70: val is_on_branch : context -> libname * branch -> bool result Chris@70: Chris@70: (** Test whether the library is at the newest revision for the Chris@70: given branch. False may indicate that the branch has advanced Chris@70: or that the library is not on the branch at all. This function Chris@70: may use the network to check for new revisions *) Chris@70: val is_newest : context -> libname * source * branch -> bool result Chris@70: Chris@70: (** Test whether the library is at the newest revision available Chris@70: locally for the given branch. False may indicate that the Chris@70: branch has advanced or that the library is not on the branch Chris@70: at all. This function must not use the network *) Chris@70: val is_newest_locally : context -> libname * branch -> bool result Chris@70: Chris@70: (** Test whether the library has been modified in the local Chris@70: working copy *) Chris@70: val is_modified_locally : context -> libname -> bool result Chris@70: Chris@70: (** Check out, i.e. clone a fresh copy of, the repo for the given Chris@70: library on the given branch *) Chris@70: val checkout : context -> libname * source * branch -> unit result Chris@70: Chris@70: (** Update the library to the given branch tip. Assumes that a Chris@70: local copy of the library already exists *) Chris@70: val update : context -> libname * source * branch -> unit result Chris@70: Chris@70: (** Update the library to the given specific id or tag *) Chris@70: val update_to : context -> libname * source * id_or_tag -> unit result Chris@70: Chris@70: (** Return a URL from which the library can be cloned, given that Chris@70: the local copy already exists. For a DVCS this can be the Chris@70: local copy, but for a centralised VCS it will have to be the Chris@70: remote repository URL. Used for archiving *) Chris@70: val copy_url_for : context -> libname -> string result Chris@70: end Chris@70: Chris@70: signature LIB_CONTROL = sig Chris@70: val review : context -> libspec -> (libstate * localstate) result Chris@70: val status : context -> libspec -> (libstate * localstate) result Chris@70: val update : context -> libspec -> unit result Chris@70: val id_of : context -> libspec -> id_or_tag result Chris@76: val is_working : context -> vcs -> bool result Chris@70: end Chris@70: Chris@70: structure FileBits :> sig Chris@70: val extpath : context -> string Chris@70: val libpath : context -> libname -> string Chris@70: val subpath : context -> libname -> string -> string Chris@70: val command_output : context -> libname -> string list -> string result Chris@70: val command : context -> libname -> string list -> unit result Chris@70: val file_url : string -> string Chris@70: val file_contents : string -> string Chris@70: val mydir : unit -> string Chris@70: val homedir : unit -> string Chris@70: val mkpath : string -> unit result Chris@70: val rmpath : string -> unit result Chris@70: val nonempty_dir_exists : string -> bool Chris@70: val project_spec_path : string -> string Chris@70: val project_lock_path : string -> string Chris@70: val verbose : unit -> bool Chris@70: end = struct Chris@70: Chris@70: fun verbose () = Chris@76: case OS.Process.getEnv "REPOINT_VERBOSE" of Chris@70: SOME "0" => false Chris@70: | SOME _ => true Chris@70: | NONE => false Chris@70: Chris@70: fun split_relative path desc = Chris@70: case OS.Path.fromString path of Chris@70: { isAbs = true, ... } => raise Fail (desc ^ " may not be absolute") Chris@70: | { arcs, ... } => arcs Chris@70: Chris@70: fun extpath ({ rootpath, extdir, ... } : context) = Chris@70: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@70: in OS.Path.toString { Chris@70: isAbs = isAbs, Chris@70: vol = vol, Chris@70: arcs = arcs @ Chris@70: split_relative extdir "extdir" Chris@70: } Chris@70: end Chris@70: Chris@70: fun subpath ({ rootpath, extdir, ... } : context) libname remainder = Chris@70: (* NB libname is allowed to be a path fragment, e.g. foo/bar *) Chris@70: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@70: in OS.Path.toString { Chris@70: isAbs = isAbs, Chris@70: vol = vol, Chris@70: arcs = arcs @ Chris@70: split_relative extdir "extdir" @ Chris@70: split_relative libname "library path" @ Chris@70: split_relative remainder "subpath" Chris@70: } Chris@70: end Chris@70: Chris@70: fun libpath context "" = Chris@70: extpath context Chris@70: | libpath context libname = Chris@70: subpath context libname "" Chris@70: Chris@70: fun project_file_path rootpath filename = Chris@70: let val { isAbs, vol, arcs } = OS.Path.fromString rootpath Chris@70: in OS.Path.toString { Chris@70: isAbs = isAbs, Chris@70: vol = vol, Chris@70: arcs = arcs @ [ filename ] Chris@70: } Chris@70: end Chris@70: Chris@70: fun project_spec_path rootpath = Chris@76: project_file_path rootpath (RepointFilenames.project_file) Chris@70: Chris@70: fun project_lock_path rootpath = Chris@76: project_file_path rootpath (RepointFilenames.project_lock_file) Chris@70: Chris@70: fun trim str = Chris@70: hd (String.fields (fn x => x = #"\n" orelse x = #"\r") str) Chris@70: Chris@70: fun file_url path = Chris@70: let val forward_path = Chris@70: String.translate (fn #"\\" => "/" | Chris@70: c => Char.toString c) Chris@70: (OS.Path.mkCanonical path) Chris@70: in Chris@70: (* Path is expected to be absolute already, but if it Chris@70: starts with a drive letter, we'll need an extra slash *) Chris@70: case explode forward_path of Chris@70: #"/"::rest => "file:///" ^ implode rest Chris@70: | _ => "file:///" ^ forward_path Chris@70: end Chris@70: Chris@70: fun file_contents filename = Chris@70: let val stream = TextIO.openIn filename Chris@70: fun read_all str acc = Chris@70: case TextIO.inputLine str of Chris@70: SOME line => read_all str (trim line :: acc) Chris@70: | NONE => rev acc Chris@70: val contents = read_all stream [] Chris@70: val _ = TextIO.closeIn stream Chris@70: in Chris@70: String.concatWith "\n" contents Chris@70: end Chris@70: Chris@70: fun expand_commandline cmdlist = Chris@76: (* We are quite strict about what we accept here, except Chris@70: for the first element in cmdlist which is assumed to be a Chris@76: known command location rather than arbitrary user input. *) Chris@70: let open Char Chris@70: fun quote arg = Chris@70: if List.all Chris@70: (fn c => isAlphaNum c orelse c = #"-" orelse c = #"_") Chris@70: (explode arg) Chris@70: then arg Chris@70: else "\"" ^ arg ^ "\"" Chris@70: fun check arg = Chris@70: let val valid = explode " /#:;?,._-{}@=+" Chris@70: in Chris@70: app (fn c => Chris@70: if isAlphaNum c orelse Chris@70: List.exists (fn v => v = c) valid orelse Chris@70: c > chr 127 Chris@70: then () Chris@70: else raise Fail ("Invalid character '" ^ Chris@70: (Char.toString c) ^ Chris@70: "' in command list")) Chris@70: (explode arg); Chris@70: arg Chris@70: end Chris@70: in Chris@70: String.concatWith " " Chris@70: (map quote Chris@70: (hd cmdlist :: map check (tl cmdlist))) Chris@70: end Chris@70: Chris@70: val tick_cycle = ref 0 Chris@70: val tick_chars = Vector.fromList (map String.str (explode "|/-\\")) Chris@70: Chris@70: fun tick libname cmdlist = Chris@70: let val n = Vector.length tick_chars Chris@70: fun pad_to n str = Chris@70: if n <= String.size str then str Chris@70: else pad_to n (str ^ " ") Chris@70: val name = if libname <> "" then libname Chris@70: else if cmdlist = nil then "" Chris@70: else hd (rev cmdlist) Chris@70: in Chris@70: print (" " ^ Chris@70: Vector.sub(tick_chars, !tick_cycle) ^ " " ^ Chris@70: pad_to 70 name ^ Chris@70: "\r"); Chris@70: tick_cycle := (if !tick_cycle = n - 1 then 0 else 1 + !tick_cycle) Chris@70: end Chris@70: Chris@70: fun run_command context libname cmdlist redirect = Chris@70: let open OS Chris@70: val dir = libpath context libname Chris@70: val cmd = expand_commandline cmdlist Chris@70: val _ = if verbose () Chris@70: then print ("\n=== " ^ dir ^ "\n<<< " ^ cmd ^ "\n") Chris@70: else tick libname cmdlist Chris@70: val _ = FileSys.chDir dir Chris@70: val status = case redirect of Chris@70: NONE => Process.system cmd Chris@70: | SOME file => Process.system (cmd ^ ">" ^ file) Chris@70: in Chris@70: if Process.isSuccess status Chris@70: then OK () Chris@70: else ERROR ("Command failed: " ^ cmd ^ " (in dir " ^ dir ^ ")") Chris@70: end Chris@70: handle ex => ERROR ("Unable to run command: " ^ exnMessage ex) Chris@70: Chris@70: fun command context libname cmdlist = Chris@70: run_command context libname cmdlist NONE Chris@70: Chris@70: fun command_output context libname cmdlist = Chris@70: let open OS Chris@70: val tmpFile = FileSys.tmpName () Chris@70: val result = run_command context libname cmdlist (SOME tmpFile) Chris@70: val contents = file_contents tmpFile Chris@70: val _ = if verbose () Chris@70: then print (">>> \"" ^ contents ^ "\"\n") Chris@70: else () Chris@70: in Chris@70: FileSys.remove tmpFile handle _ => (); Chris@70: case result of Chris@70: OK () => OK contents Chris@70: | ERROR e => ERROR e Chris@70: end Chris@70: Chris@70: fun mydir () = Chris@70: let open OS Chris@70: val { dir, file } = Path.splitDirFile (CommandLine.name ()) Chris@70: in Chris@70: FileSys.realPath Chris@70: (if Path.isAbsolute dir Chris@70: then dir Chris@70: else Path.concat (FileSys.getDir (), dir)) Chris@70: end Chris@70: Chris@70: fun homedir () = Chris@70: (* Failure is not routine, so we use an exception here *) Chris@70: case (OS.Process.getEnv "HOME", Chris@70: OS.Process.getEnv "HOMEPATH") of Chris@70: (SOME home, _) => home Chris@70: | (NONE, SOME home) => home Chris@70: | (NONE, NONE) => Chris@70: raise Fail "Failed to look up home directory from environment" Chris@70: Chris@70: fun mkpath' path = Chris@70: if OS.FileSys.isDir path handle _ => false Chris@70: then OK () Chris@70: else case OS.Path.fromString path of Chris@70: { arcs = nil, ... } => OK () Chris@70: | { isAbs = false, ... } => ERROR "mkpath requires absolute path" Chris@70: | { isAbs, vol, arcs } => Chris@70: case mkpath' (OS.Path.toString { (* parent *) Chris@70: isAbs = isAbs, Chris@70: vol = vol, Chris@70: arcs = rev (tl (rev arcs)) }) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => ((OS.FileSys.mkDir path; OK ()) Chris@70: handle OS.SysErr (e, _) => Chris@70: ERROR ("Directory creation failed: " ^ e)) Chris@70: Chris@70: fun mkpath path = Chris@70: mkpath' (OS.Path.mkCanonical path) Chris@70: Chris@70: fun dir_contents dir = Chris@70: let open OS Chris@70: fun files_from dirstream = Chris@70: case FileSys.readDir dirstream of Chris@70: NONE => [] Chris@70: | SOME file => Chris@70: (* readDir is supposed to filter these, Chris@70: but let's be extra cautious: *) Chris@70: if file = Path.parentArc orelse file = Path.currentArc Chris@70: then files_from dirstream Chris@70: else file :: files_from dirstream Chris@70: val stream = FileSys.openDir dir Chris@70: val files = map (fn f => Path.joinDirFile Chris@70: { dir = dir, file = f }) Chris@70: (files_from stream) Chris@70: val _ = FileSys.closeDir stream Chris@70: in Chris@70: files Chris@70: end Chris@70: Chris@70: fun rmpath' path = Chris@70: let open OS Chris@70: fun remove path = Chris@70: if FileSys.isLink path (* dangling links bother isDir *) Chris@70: then FileSys.remove path Chris@70: else if FileSys.isDir path Chris@70: then (app remove (dir_contents path); FileSys.rmDir path) Chris@70: else FileSys.remove path Chris@70: in Chris@70: (remove path; OK ()) Chris@70: handle SysErr (e, _) => ERROR ("Path removal failed: " ^ e) Chris@70: end Chris@70: Chris@70: fun rmpath path = Chris@70: rmpath' (OS.Path.mkCanonical path) Chris@70: Chris@70: fun nonempty_dir_exists path = Chris@70: let open OS.FileSys Chris@70: in Chris@70: (not (isLink path) andalso Chris@70: isDir path andalso Chris@70: dir_contents path <> []) Chris@70: handle _ => false Chris@70: end Chris@70: Chris@70: end Chris@70: Chris@70: functor LibControlFn (V: VCS_CONTROL) :> LIB_CONTROL = struct Chris@70: Chris@70: (* Valid states for unpinned libraries: Chris@70: Chris@70: - CORRECT: We are on the right branch and are up-to-date with Chris@70: it as far as we can tell. (If not using the network, this Chris@70: should be reported to user as "Present" rather than "Correct" Chris@70: as the remote repo may have advanced without us knowing.) Chris@70: Chris@70: - SUPERSEDED: We are on the right branch but we can see that Chris@70: there is a newer revision either locally or on the remote (in Chris@70: Git terms, we are at an ancestor of the desired branch tip). Chris@70: Chris@70: - WRONG: We are on the wrong branch (in Git terms, we are not Chris@70: at the desired branch tip or any ancestor of it). Chris@70: Chris@70: - ABSENT: Repo doesn't exist here at all. Chris@70: Chris@70: Valid states for pinned libraries: Chris@70: Chris@70: - CORRECT: We are at the pinned revision. Chris@70: Chris@70: - WRONG: We are at any revision other than the pinned one. Chris@70: Chris@70: - ABSENT: Repo doesn't exist here at all. Chris@70: *) Chris@70: Chris@70: fun check with_network context Chris@70: ({ libname, source, branch, Chris@70: project_pin, lock_pin, ... } : libspec) = Chris@70: let fun check_unpinned () = Chris@70: let val newest = Chris@70: if with_network Chris@70: then V.is_newest context (libname, source, branch) Chris@70: else V.is_newest_locally context (libname, branch) Chris@70: in Chris@70: case newest of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK CORRECT Chris@70: | OK false => Chris@70: case V.is_on_branch context (libname, branch) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK SUPERSEDED Chris@70: | OK false => OK WRONG Chris@70: end Chris@70: fun check_pinned target = Chris@70: case V.is_at context (libname, target) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK CORRECT Chris@70: | OK false => OK WRONG Chris@70: fun check_remote () = Chris@70: case project_pin of Chris@70: UNPINNED => check_unpinned () Chris@70: | PINNED target => check_pinned target Chris@70: fun check_local () = Chris@70: case V.is_modified_locally context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK MODIFIED Chris@70: | OK false => Chris@70: case lock_pin of Chris@70: UNPINNED => OK CLEAN Chris@70: | PINNED target => Chris@70: case V.is_at context (libname, target) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK CLEAN Chris@70: | OK false => OK LOCK_MISMATCHED Chris@70: in Chris@70: case V.exists context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK false => OK (ABSENT, CLEAN) Chris@70: | OK true => Chris@70: case (check_remote (), check_local ()) of Chris@70: (ERROR e, _) => ERROR e Chris@70: | (_, ERROR e) => ERROR e Chris@70: | (OK r, OK l) => OK (r, l) Chris@70: end Chris@70: Chris@70: val review = check true Chris@70: val status = check false Chris@70: Chris@70: fun update context Chris@70: ({ libname, source, branch, Chris@70: project_pin, lock_pin, ... } : libspec) = Chris@70: let fun update_unpinned () = Chris@70: case V.is_newest context (libname, source, branch) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK () Chris@70: | OK false => V.update context (libname, source, branch) Chris@70: fun update_pinned target = Chris@70: case V.is_at context (libname, target) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK () Chris@70: | OK false => V.update_to context (libname, source, target) Chris@70: fun update' () = Chris@70: case lock_pin of Chris@70: PINNED target => update_pinned target Chris@70: | UNPINNED => Chris@70: case project_pin of Chris@70: PINNED target => update_pinned target Chris@70: | UNPINNED => update_unpinned () Chris@70: in Chris@70: case V.exists context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK true => update' () Chris@70: | OK false => Chris@70: case V.checkout context (libname, source, branch) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => update' () Chris@70: end Chris@70: Chris@70: fun id_of context ({ libname, ... } : libspec) = Chris@70: V.id_of context libname Chris@76: Chris@76: fun is_working context vcs = Chris@76: V.is_working context Chris@70: Chris@70: end Chris@70: Chris@70: (* Simple Standard ML JSON parser Chris@70: https://bitbucket.org/cannam/sml-simplejson Chris@70: Copyright 2017 Chris Cannam. BSD licence. Chris@70: Parts based on the JSON parser in the Ponyo library by Phil Eaton. Chris@70: *) Chris@70: Chris@70: signature JSON = sig Chris@70: Chris@70: datatype json = OBJECT of (string * json) list Chris@70: | ARRAY of json list Chris@70: | NUMBER of real Chris@70: | STRING of string Chris@70: | BOOL of bool Chris@70: | NULL Chris@70: Chris@70: datatype 'a result = OK of 'a Chris@70: | ERROR of string Chris@70: Chris@70: val parse : string -> json result Chris@70: val serialise : json -> string Chris@70: val serialiseIndented : json -> string Chris@70: Chris@70: end Chris@70: Chris@70: structure Json :> JSON = struct Chris@70: Chris@70: datatype json = OBJECT of (string * json) list Chris@70: | ARRAY of json list Chris@70: | NUMBER of real Chris@70: | STRING of string Chris@70: | BOOL of bool Chris@70: | NULL Chris@70: Chris@70: datatype 'a result = OK of 'a Chris@70: | ERROR of string Chris@70: Chris@70: structure T = struct Chris@70: datatype token = NUMBER of char list Chris@70: | STRING of string Chris@70: | BOOL of bool Chris@70: | NULL Chris@70: | CURLY_L Chris@70: | CURLY_R Chris@70: | SQUARE_L Chris@70: | SQUARE_R Chris@70: | COLON Chris@70: | COMMA Chris@70: Chris@70: fun toString t = Chris@70: case t of NUMBER digits => implode digits Chris@70: | STRING s => s Chris@70: | BOOL b => Bool.toString b Chris@70: | NULL => "null" Chris@70: | CURLY_L => "{" Chris@70: | CURLY_R => "}" Chris@70: | SQUARE_L => "[" Chris@70: | SQUARE_R => "]" Chris@70: | COLON => ":" Chris@70: | COMMA => "," Chris@70: end Chris@70: Chris@70: fun bmpToUtf8 cp = (* convert a codepoint in Unicode BMP to utf8 bytes *) Chris@70: let open Word Chris@70: infix 6 orb andb >> Chris@70: in Chris@70: map (Char.chr o toInt) Chris@70: (if cp < 0wx80 then Chris@70: [cp] Chris@70: else if cp < 0wx800 then Chris@70: [0wxc0 orb (cp >> 0w6), 0wx80 orb (cp andb 0wx3f)] Chris@70: else if cp < 0wx10000 then Chris@70: [0wxe0 orb (cp >> 0w12), Chris@70: 0wx80 orb ((cp >> 0w6) andb 0wx3f), Chris@70: 0wx80 orb (cp andb 0wx3f)] Chris@70: else raise Fail ("Invalid BMP point " ^ (Word.toString cp))) Chris@70: end Chris@70: Chris@70: fun error pos text = ERROR (text ^ " at character position " ^ Chris@70: Int.toString (pos - 1)) Chris@70: fun token_error pos = error pos ("Unexpected token") Chris@70: Chris@70: fun lexNull pos acc (#"u" :: #"l" :: #"l" :: xs) = Chris@70: lex (pos + 3) (T.NULL :: acc) xs Chris@70: | lexNull pos acc _ = token_error pos Chris@70: Chris@70: and lexTrue pos acc (#"r" :: #"u" :: #"e" :: xs) = Chris@70: lex (pos + 3) (T.BOOL true :: acc) xs Chris@70: | lexTrue pos acc _ = token_error pos Chris@70: Chris@70: and lexFalse pos acc (#"a" :: #"l" :: #"s" :: #"e" :: xs) = Chris@70: lex (pos + 4) (T.BOOL false :: acc) xs Chris@70: | lexFalse pos acc _ = token_error pos Chris@70: Chris@70: and lexChar tok pos acc xs = Chris@70: lex pos (tok :: acc) xs Chris@70: Chris@70: and lexString pos acc cc = Chris@70: let datatype escaped = ESCAPED | NORMAL Chris@70: fun lexString' pos text ESCAPED [] = Chris@70: error pos "End of input during escape sequence" Chris@70: | lexString' pos text NORMAL [] = Chris@70: error pos "End of input during string" Chris@70: | lexString' pos text ESCAPED (x :: xs) = Chris@70: let fun esc c = lexString' (pos + 1) (c :: text) NORMAL xs Chris@70: in case x of Chris@70: #"\"" => esc x Chris@70: | #"\\" => esc x Chris@70: | #"/" => esc x Chris@70: | #"b" => esc #"\b" Chris@70: | #"f" => esc #"\f" Chris@70: | #"n" => esc #"\n" Chris@70: | #"r" => esc #"\r" Chris@70: | #"t" => esc #"\t" Chris@70: | _ => error pos ("Invalid escape \\" ^ Chris@70: Char.toString x) Chris@70: end Chris@70: | lexString' pos text NORMAL (#"\\" :: #"u" ::a::b::c::d:: xs) = Chris@70: if List.all Char.isHexDigit [a,b,c,d] Chris@70: then case Word.fromString ("0wx" ^ (implode [a,b,c,d])) of Chris@70: SOME w => (let val utf = rev (bmpToUtf8 w) in Chris@70: lexString' (pos + 6) (utf @ text) Chris@70: NORMAL xs Chris@70: end Chris@70: handle Fail err => error pos err) Chris@70: | NONE => error pos "Invalid Unicode BMP escape sequence" Chris@70: else error pos "Invalid Unicode BMP escape sequence" Chris@70: | lexString' pos text NORMAL (x :: xs) = Chris@70: if Char.ord x < 0x20 Chris@70: then error pos "Invalid unescaped control character" Chris@70: else Chris@70: case x of Chris@70: #"\"" => OK (rev text, xs, pos + 1) Chris@70: | #"\\" => lexString' (pos + 1) text ESCAPED xs Chris@70: | _ => lexString' (pos + 1) (x :: text) NORMAL xs Chris@70: in Chris@70: case lexString' pos [] NORMAL cc of Chris@70: OK (text, rest, newpos) => Chris@70: lex newpos (T.STRING (implode text) :: acc) rest Chris@70: | ERROR e => ERROR e Chris@70: end Chris@70: Chris@70: and lexNumber firstChar pos acc cc = Chris@70: let val valid = explode ".+-e" Chris@70: fun lexNumber' pos digits [] = (rev digits, [], pos) Chris@70: | lexNumber' pos digits (x :: xs) = Chris@70: if x = #"E" then lexNumber' (pos + 1) (#"e" :: digits) xs Chris@70: else if Char.isDigit x orelse List.exists (fn c => x = c) valid Chris@70: then lexNumber' (pos + 1) (x :: digits) xs Chris@70: else (rev digits, x :: xs, pos) Chris@70: val (digits, rest, newpos) = Chris@70: lexNumber' (pos - 1) [] (firstChar :: cc) Chris@70: in Chris@70: case digits of Chris@70: [] => token_error pos Chris@70: | _ => lex newpos (T.NUMBER digits :: acc) rest Chris@70: end Chris@70: Chris@70: and lex pos acc [] = OK (rev acc) Chris@70: | lex pos acc (x::xs) = Chris@70: (case x of Chris@70: #" " => lex Chris@70: | #"\t" => lex Chris@70: | #"\n" => lex Chris@70: | #"\r" => lex Chris@70: | #"{" => lexChar T.CURLY_L Chris@70: | #"}" => lexChar T.CURLY_R Chris@70: | #"[" => lexChar T.SQUARE_L Chris@70: | #"]" => lexChar T.SQUARE_R Chris@70: | #":" => lexChar T.COLON Chris@70: | #"," => lexChar T.COMMA Chris@70: | #"\"" => lexString Chris@70: | #"t" => lexTrue Chris@70: | #"f" => lexFalse Chris@70: | #"n" => lexNull Chris@70: | x => lexNumber x) (pos + 1) acc xs Chris@70: Chris@70: fun show [] = "end of input" Chris@70: | show (tok :: _) = T.toString tok Chris@70: Chris@70: fun parseNumber digits = Chris@70: (* Note lexNumber already case-insensitised the E for us *) Chris@70: let open Char Chris@70: Chris@70: fun okExpDigits [] = false Chris@70: | okExpDigits (c :: []) = isDigit c Chris@70: | okExpDigits (c :: cs) = isDigit c andalso okExpDigits cs Chris@70: Chris@70: fun okExponent [] = false Chris@70: | okExponent (#"+" :: cs) = okExpDigits cs Chris@70: | okExponent (#"-" :: cs) = okExpDigits cs Chris@70: | okExponent cc = okExpDigits cc Chris@70: Chris@70: fun okFracTrailing [] = true Chris@70: | okFracTrailing (c :: cs) = Chris@70: (isDigit c andalso okFracTrailing cs) orelse Chris@70: (c = #"e" andalso okExponent cs) Chris@70: Chris@70: fun okFraction [] = false Chris@70: | okFraction (c :: cs) = Chris@70: isDigit c andalso okFracTrailing cs Chris@70: Chris@70: fun okPosTrailing [] = true Chris@70: | okPosTrailing (#"." :: cs) = okFraction cs Chris@70: | okPosTrailing (#"e" :: cs) = okExponent cs Chris@70: | okPosTrailing (c :: cs) = Chris@70: isDigit c andalso okPosTrailing cs Chris@70: Chris@70: fun okPositive [] = false Chris@70: | okPositive (#"0" :: []) = true Chris@70: | okPositive (#"0" :: #"." :: cs) = okFraction cs Chris@70: | okPositive (#"0" :: #"e" :: cs) = okExponent cs Chris@70: | okPositive (#"0" :: cs) = false Chris@70: | okPositive (c :: cs) = isDigit c andalso okPosTrailing cs Chris@70: Chris@70: fun okNumber (#"-" :: cs) = okPositive cs Chris@70: | okNumber cc = okPositive cc Chris@70: in Chris@70: if okNumber digits Chris@70: then case Real.fromString (implode digits) of Chris@70: NONE => ERROR "Number out of range" Chris@70: | SOME r => OK r Chris@70: else ERROR ("Invalid number \"" ^ (implode digits) ^ "\"") Chris@70: end Chris@70: Chris@70: fun parseObject (T.CURLY_R :: xs) = OK (OBJECT [], xs) Chris@70: | parseObject tokens = Chris@70: let fun parsePair (T.STRING key :: T.COLON :: xs) = Chris@70: (case parseTokens xs of Chris@70: ERROR e => ERROR e Chris@70: | OK (j, xs) => OK ((key, j), xs)) Chris@70: | parsePair other = Chris@70: ERROR ("Object key/value pair expected around \"" ^ Chris@70: show other ^ "\"") Chris@70: fun parseObject' acc [] = ERROR "End of input during object" Chris@70: | parseObject' acc tokens = Chris@70: case parsePair tokens of Chris@70: ERROR e => ERROR e Chris@70: | OK (pair, T.COMMA :: xs) => Chris@70: parseObject' (pair :: acc) xs Chris@70: | OK (pair, T.CURLY_R :: xs) => Chris@70: OK (OBJECT (rev (pair :: acc)), xs) Chris@70: | OK (_, _) => ERROR "Expected , or } after object element" Chris@70: in Chris@70: parseObject' [] tokens Chris@70: end Chris@70: Chris@70: and parseArray (T.SQUARE_R :: xs) = OK (ARRAY [], xs) Chris@70: | parseArray tokens = Chris@70: let fun parseArray' acc [] = ERROR "End of input during array" Chris@70: | parseArray' acc tokens = Chris@70: case parseTokens tokens of Chris@70: ERROR e => ERROR e Chris@70: | OK (j, T.COMMA :: xs) => parseArray' (j :: acc) xs Chris@70: | OK (j, T.SQUARE_R :: xs) => OK (ARRAY (rev (j :: acc)), xs) Chris@70: | OK (_, _) => ERROR "Expected , or ] after array element" Chris@70: in Chris@70: parseArray' [] tokens Chris@70: end Chris@70: Chris@70: and parseTokens [] = ERROR "Value expected" Chris@70: | parseTokens (tok :: xs) = Chris@70: (case tok of Chris@70: T.NUMBER d => (case parseNumber d of Chris@70: OK r => OK (NUMBER r, xs) Chris@70: | ERROR e => ERROR e) Chris@70: | T.STRING s => OK (STRING s, xs) Chris@70: | T.BOOL b => OK (BOOL b, xs) Chris@70: | T.NULL => OK (NULL, xs) Chris@70: | T.CURLY_L => parseObject xs Chris@70: | T.SQUARE_L => parseArray xs Chris@70: | _ => ERROR ("Unexpected token " ^ T.toString tok ^ Chris@70: " before " ^ show xs)) Chris@70: Chris@70: fun parse str = Chris@70: case lex 1 [] (explode str) of Chris@70: ERROR e => ERROR e Chris@70: | OK tokens => case parseTokens tokens of Chris@70: OK (value, []) => OK value Chris@70: | OK (_, _) => ERROR "Extra data after input" Chris@70: | ERROR e => ERROR e Chris@70: Chris@70: fun stringEscape s = Chris@70: let fun esc x = [x, #"\\"] Chris@70: fun escape' acc [] = rev acc Chris@70: | escape' acc (x :: xs) = Chris@70: escape' (case x of Chris@70: #"\"" => esc x @ acc Chris@70: | #"\\" => esc x @ acc Chris@70: | #"\b" => esc #"b" @ acc Chris@70: | #"\f" => esc #"f" @ acc Chris@70: | #"\n" => esc #"n" @ acc Chris@70: | #"\r" => esc #"r" @ acc Chris@70: | #"\t" => esc #"t" @ acc Chris@70: | _ => Chris@70: let val c = Char.ord x Chris@70: in Chris@70: if c < 0x20 Chris@70: then let val hex = Word.toString (Word.fromInt c) Chris@70: in (rev o explode) (if c < 0x10 Chris@70: then ("\\u000" ^ hex) Chris@70: else ("\\u00" ^ hex)) Chris@70: end @ acc Chris@70: else Chris@70: x :: acc Chris@70: end) Chris@70: xs Chris@70: in Chris@70: implode (escape' [] (explode s)) Chris@70: end Chris@70: Chris@70: fun serialise json = Chris@70: case json of Chris@70: OBJECT pp => "{" ^ String.concatWith Chris@70: "," (map (fn (key, value) => Chris@70: serialise (STRING key) ^ ":" ^ Chris@70: serialise value) pp) ^ Chris@70: "}" Chris@70: | ARRAY arr => "[" ^ String.concatWith "," (map serialise arr) ^ "]" Chris@70: | NUMBER n => implode (map (fn #"~" => #"-" | c => c) Chris@70: (explode (Real.toString n))) Chris@70: | STRING s => "\"" ^ stringEscape s ^ "\"" Chris@70: | BOOL b => Bool.toString b Chris@70: | NULL => "null" Chris@70: Chris@70: fun serialiseIndented json = Chris@70: let fun indent 0 = "" Chris@70: | indent i = " " ^ indent (i - 1) Chris@70: fun serialiseIndented' i json = Chris@70: let val ser = serialiseIndented' (i + 1) Chris@70: in Chris@70: case json of Chris@70: OBJECT [] => "{}" Chris@70: | ARRAY [] => "[]" Chris@70: | OBJECT pp => "{\n" ^ indent (i + 1) ^ Chris@70: String.concatWith Chris@70: (",\n" ^ indent (i + 1)) Chris@70: (map (fn (key, value) => Chris@70: ser (STRING key) ^ ": " ^ Chris@70: ser value) pp) ^ Chris@70: "\n" ^ indent i ^ "}" Chris@70: | ARRAY arr => "[\n" ^ indent (i + 1) ^ Chris@70: String.concatWith Chris@70: (",\n" ^ indent (i + 1)) Chris@70: (map ser arr) ^ Chris@70: "\n" ^ indent i ^ "]" Chris@70: | other => serialise other Chris@70: end Chris@70: in Chris@70: serialiseIndented' 0 json ^ "\n" Chris@70: end Chris@70: Chris@70: end Chris@70: Chris@70: Chris@70: structure JsonBits :> sig Chris@76: exception Config of string Chris@70: val load_json_from : string -> Json.json (* filename -> json *) Chris@70: val save_json_to : string -> Json.json -> unit Chris@70: val lookup_optional : Json.json -> string list -> Json.json option Chris@70: val lookup_optional_string : Json.json -> string list -> string option Chris@70: val lookup_mandatory : Json.json -> string list -> Json.json Chris@70: val lookup_mandatory_string : Json.json -> string list -> string Chris@70: end = struct Chris@70: Chris@76: exception Config of string Chris@76: Chris@70: fun load_json_from filename = Chris@70: case Json.parse (FileBits.file_contents filename) of Chris@70: Json.OK json => json Chris@76: | Json.ERROR e => raise Config ("Failed to parse file: " ^ e) Chris@70: Chris@70: fun save_json_to filename json = Chris@70: (* using binary I/O to avoid ever writing CR/LF line endings *) Chris@70: let val jstr = Json.serialiseIndented json Chris@70: val stream = BinIO.openOut filename Chris@70: in Chris@70: BinIO.output (stream, Byte.stringToBytes jstr); Chris@70: BinIO.closeOut stream Chris@70: end Chris@70: Chris@70: fun lookup_optional json kk = Chris@70: let fun lookup key = Chris@70: case json of Chris@70: Json.OBJECT kvs => Chris@76: (case List.filter (fn (k, v) => k = key) kvs of Chris@76: [] => NONE Chris@76: | [(_,v)] => SOME v Chris@76: | _ => raise Config ("Duplicate key: " ^ Chris@76: (String.concatWith " -> " kk))) Chris@76: | _ => raise Config "Object expected" Chris@70: in Chris@70: case kk of Chris@70: [] => NONE Chris@70: | key::[] => lookup key Chris@70: | key::kk => case lookup key of Chris@70: NONE => NONE Chris@70: | SOME j => lookup_optional j kk Chris@70: end Chris@70: Chris@70: fun lookup_optional_string json kk = Chris@70: case lookup_optional json kk of Chris@70: SOME (Json.STRING s) => SOME s Chris@76: | SOME _ => raise Config ("Value (if present) must be string: " ^ Chris@76: (String.concatWith " -> " kk)) Chris@70: | NONE => NONE Chris@70: Chris@70: fun lookup_mandatory json kk = Chris@70: case lookup_optional json kk of Chris@70: SOME v => v Chris@76: | NONE => raise Config ("Value is mandatory: " ^ Chris@76: (String.concatWith " -> " kk)) Chris@70: Chris@70: fun lookup_mandatory_string json kk = Chris@70: case lookup_optional json kk of Chris@70: SOME (Json.STRING s) => s Chris@76: | _ => raise Config ("Value must be string: " ^ Chris@76: (String.concatWith " -> " kk)) Chris@70: end Chris@70: Chris@70: structure Provider :> sig Chris@70: val load_providers : Json.json -> provider list Chris@70: val load_more_providers : provider list -> Json.json -> provider list Chris@70: val remote_url : context -> vcs -> source -> libname -> string Chris@70: end = struct Chris@70: Chris@70: val known_providers : provider list = Chris@70: [ { Chris@70: service = "bitbucket", Chris@70: supports = [HG, GIT], Chris@70: remote_spec = { Chris@70: anon = SOME "https://bitbucket.org/{owner}/{repository}", Chris@70: auth = SOME "ssh://{vcs}@bitbucket.org/{owner}/{repository}" Chris@70: } Chris@70: }, Chris@70: { Chris@70: service = "github", Chris@70: supports = [GIT], Chris@70: remote_spec = { Chris@70: anon = SOME "https://github.com/{owner}/{repository}", Chris@70: auth = SOME "ssh://{vcs}@github.com/{owner}/{repository}" Chris@70: } Chris@70: } Chris@70: ] Chris@70: Chris@70: fun vcs_name vcs = Chris@70: case vcs of HG => "hg" Chris@70: | GIT => "git" Chris@70: | SVN => "svn" Chris@70: Chris@70: fun vcs_from_name name = Chris@70: case name of "hg" => HG Chris@70: | "git" => GIT Chris@70: | "svn" => SVN Chris@70: | other => raise Fail ("Unknown vcs name \"" ^ name ^ "\"") Chris@70: Chris@70: fun load_more_providers previously_loaded json = Chris@70: let open JsonBits Chris@70: fun load pjson pname : provider = Chris@70: { Chris@70: service = pname, Chris@70: supports = Chris@70: case lookup_mandatory pjson ["vcs"] of Chris@70: Json.ARRAY vv => Chris@70: map (fn (Json.STRING v) => vcs_from_name v Chris@70: | _ => raise Fail "Strings expected in vcs array") Chris@70: vv Chris@70: | _ => raise Fail "Array expected for vcs", Chris@70: remote_spec = { Chris@70: anon = lookup_optional_string pjson ["anonymous"], Chris@70: auth = lookup_optional_string pjson ["authenticated"] Chris@70: } Chris@70: } Chris@70: val loaded = Chris@70: case lookup_optional json ["services"] of Chris@70: NONE => [] Chris@70: | SOME (Json.OBJECT pl) => map (fn (k, v) => load v k) pl Chris@70: | _ => raise Fail "Object expected for services in config" Chris@70: val newly_loaded = Chris@70: List.filter (fn p => not (List.exists (fn pp => #service p = Chris@70: #service pp) Chris@70: previously_loaded)) Chris@70: loaded Chris@70: in Chris@70: previously_loaded @ newly_loaded Chris@70: end Chris@70: Chris@70: fun load_providers json = Chris@70: load_more_providers known_providers json Chris@70: Chris@70: fun expand_spec spec { vcs, service, owner, repo } login = Chris@70: (* ugly *) Chris@70: let fun replace str = Chris@70: case str of Chris@70: "vcs" => vcs_name vcs Chris@70: | "service" => service Chris@70: | "owner" => Chris@70: (case owner of Chris@70: SOME ostr => ostr Chris@70: | NONE => raise Fail ("Owner not specified for service " ^ Chris@70: service)) Chris@70: | "repository" => repo Chris@70: | "account" => Chris@70: (case login of Chris@70: SOME acc => acc Chris@70: | NONE => raise Fail ("Account not given for service " ^ Chris@70: service)) Chris@70: | other => raise Fail ("Unknown variable \"" ^ other ^ Chris@70: "\" in spec for service " ^ service) Chris@70: fun expand' acc sstr = Chris@70: case Substring.splitl (fn c => c <> #"{") sstr of Chris@70: (pfx, sfx) => Chris@70: if Substring.isEmpty sfx Chris@70: then rev (pfx :: acc) Chris@70: else Chris@70: case Substring.splitl (fn c => c <> #"}") sfx of Chris@70: (tok, remainder) => Chris@70: if Substring.isEmpty remainder Chris@70: then rev (tok :: pfx :: acc) Chris@70: else let val replacement = Chris@70: replace Chris@70: (* tok begins with "{": *) Chris@70: (Substring.string Chris@70: (Substring.triml 1 tok)) Chris@70: in Chris@70: expand' (Substring.full replacement :: Chris@70: pfx :: acc) Chris@70: (* remainder begins with "}": *) Chris@70: (Substring.triml 1 remainder) Chris@70: end Chris@70: in Chris@70: Substring.concat (expand' [] (Substring.full spec)) Chris@70: end Chris@70: Chris@70: fun provider_url req login providers = Chris@70: case providers of Chris@70: [] => raise Fail ("Unknown service \"" ^ (#service req) ^ Chris@70: "\" for vcs \"" ^ (vcs_name (#vcs req)) ^ "\"") Chris@70: | ({ service, supports, remote_spec : remote_spec } :: rest) => Chris@70: if service <> (#service req) orelse Chris@70: not (List.exists (fn v => v = (#vcs req)) supports) Chris@70: then provider_url req login rest Chris@70: else Chris@70: case (login, #auth remote_spec, #anon remote_spec) of Chris@70: (SOME _, SOME auth, _) => expand_spec auth req login Chris@70: | (SOME _, _, SOME anon) => expand_spec anon req NONE Chris@70: | (NONE, _, SOME anon) => expand_spec anon req NONE Chris@70: | _ => raise Fail ("No suitable anonymous or authenticated " ^ Chris@70: "URL spec provided for service \"" ^ Chris@70: service ^ "\"") Chris@70: Chris@70: fun login_for ({ accounts, ... } : context) service = Chris@70: case List.find (fn a => service = #service a) accounts of Chris@70: SOME { login, ... } => SOME login Chris@70: | NONE => NONE Chris@70: Chris@70: fun reponame_for path = Chris@70: case String.tokens (fn c => c = #"/") path of Chris@70: [] => raise Fail "Non-empty library path required" Chris@70: | toks => hd (rev toks) Chris@70: Chris@70: fun remote_url (context : context) vcs source libname = Chris@70: case source of Chris@70: URL_SOURCE u => u Chris@70: | SERVICE_SOURCE { service, owner, repo } => Chris@70: provider_url { vcs = vcs, Chris@70: service = service, Chris@70: owner = owner, Chris@70: repo = case repo of Chris@70: SOME r => r Chris@70: | NONE => reponame_for libname } Chris@70: (login_for context service) Chris@70: (#providers context) Chris@70: end Chris@70: Chris@70: structure HgControl :> VCS_CONTROL = struct Chris@70: Chris@70: (* Pulls always use an explicit URL, never just the default Chris@70: remote, in order to ensure we update properly if the location Chris@70: given in the project file changes. *) Chris@70: Chris@70: type vcsstate = { id: string, modified: bool, Chris@70: branch: string, tags: string list } Chris@70: Chris@76: val hg_program = "hg" Chris@76: Chris@70: val hg_args = [ "--config", "ui.interactive=true", Chris@70: "--config", "ui.merge=:merge" ] Chris@70: Chris@70: fun hg_command context libname args = Chris@76: FileBits.command context libname (hg_program :: hg_args @ args) Chris@70: Chris@70: fun hg_command_output context libname args = Chris@76: FileBits.command_output context libname (hg_program :: hg_args @ args) Chris@76: Chris@76: fun is_working context = Chris@76: case hg_command_output context "" ["--version"] of Chris@76: OK "" => OK false Chris@76: | OK _ => OK true Chris@76: | ERROR e => ERROR e Chris@76: Chris@70: fun exists context libname = Chris@70: OK (OS.FileSys.isDir (FileBits.subpath context libname ".hg")) Chris@70: handle _ => OK false Chris@70: Chris@70: fun remote_for context (libname, source) = Chris@70: Provider.remote_url context HG source libname Chris@70: Chris@70: fun current_state context libname : vcsstate result = Chris@70: let fun is_branch text = text <> "" andalso #"(" = hd (explode text) Chris@70: and extract_branch b = Chris@70: if is_branch b (* need to remove enclosing parens *) Chris@70: then (implode o rev o tl o rev o tl o explode) b Chris@70: else "default" Chris@70: and is_modified id = id <> "" andalso #"+" = hd (rev (explode id)) Chris@70: and extract_id id = Chris@70: if is_modified id (* need to remove trailing "+" *) Chris@70: then (implode o rev o tl o rev o explode) id Chris@70: else id Chris@70: and split_tags tags = String.tokens (fn c => c = #"/") tags Chris@70: and state_for (id, branch, tags) = Chris@70: OK { id = extract_id id, Chris@70: modified = is_modified id, Chris@70: branch = extract_branch branch, Chris@70: tags = split_tags tags } Chris@70: in Chris@70: case hg_command_output context libname ["id"] of Chris@70: ERROR e => ERROR e Chris@70: | OK out => Chris@70: case String.tokens (fn x => x = #" ") out of Chris@70: [id, branch, tags] => state_for (id, branch, tags) Chris@70: | [id, other] => if is_branch other Chris@70: then state_for (id, other, "") Chris@70: else state_for (id, "", other) Chris@70: | [id] => state_for (id, "", "") Chris@70: | _ => ERROR ("Unexpected output from hg id: " ^ out) Chris@70: end Chris@70: Chris@70: fun branch_name branch = case branch of Chris@70: DEFAULT_BRANCH => "default" Chris@70: | BRANCH "" => "default" Chris@70: | BRANCH b => b Chris@70: Chris@70: fun id_of context libname = Chris@70: case current_state context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK { id, ... } => OK id Chris@70: Chris@70: fun is_at context (libname, id_or_tag) = Chris@70: case current_state context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK { id, tags, ... } => Chris@70: OK (String.isPrefix id_or_tag id orelse Chris@70: String.isPrefix id id_or_tag orelse Chris@70: List.exists (fn t => t = id_or_tag) tags) Chris@70: Chris@70: fun is_on_branch context (libname, b) = Chris@70: case current_state context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK { branch, ... } => OK (branch = branch_name b) Chris@70: Chris@70: fun is_newest_locally context (libname, branch) = Chris@70: case hg_command_output context libname Chris@70: ["log", "-l1", Chris@70: "-b", branch_name branch, Chris@70: "--template", "{node}"] of Chris@70: ERROR e => OK false (* desired branch does not exist *) Chris@70: | OK newest_in_repo => is_at context (libname, newest_in_repo) Chris@70: Chris@70: fun pull context (libname, source) = Chris@70: let val url = remote_for context (libname, source) Chris@70: in Chris@70: hg_command context libname Chris@70: (if FileBits.verbose () Chris@70: then ["pull", url] Chris@70: else ["pull", "-q", url]) Chris@70: end Chris@70: Chris@70: fun is_newest context (libname, source, branch) = Chris@70: case is_newest_locally context (libname, branch) of Chris@70: ERROR e => ERROR e Chris@70: | OK false => OK false Chris@70: | OK true => Chris@70: case pull context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | _ => is_newest_locally context (libname, branch) Chris@70: Chris@70: fun is_modified_locally context libname = Chris@70: case current_state context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK { modified, ... } => OK modified Chris@70: Chris@70: fun checkout context (libname, source, branch) = Chris@70: let val url = remote_for context (libname, source) Chris@70: in Chris@70: (* make the lib dir rather than just the ext dir, since Chris@70: the lib dir might be nested and hg will happily check Chris@70: out into an existing empty dir anyway *) Chris@70: case FileBits.mkpath (FileBits.libpath context libname) of Chris@70: ERROR e => ERROR e Chris@70: | _ => hg_command context "" Chris@70: ["clone", "-u", branch_name branch, Chris@70: url, libname] Chris@70: end Chris@70: Chris@70: fun update context (libname, source, branch) = Chris@70: let val pull_result = pull context (libname, source) Chris@70: in Chris@70: case hg_command context libname ["update", branch_name branch] of Chris@70: ERROR e => ERROR e Chris@70: | _ => Chris@70: case pull_result of Chris@70: ERROR e => ERROR e Chris@70: | _ => OK () Chris@70: end Chris@70: Chris@70: fun update_to context (libname, _, "") = Chris@70: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@70: | update_to context (libname, source, id) = Chris@70: let val pull_result = pull context (libname, source) Chris@70: in Chris@70: case hg_command context libname ["update", "-r", id] of Chris@70: OK _ => OK () Chris@70: | ERROR e => Chris@70: case pull_result of Chris@70: ERROR e' => ERROR e' (* this was the ur-error *) Chris@70: | _ => ERROR e Chris@70: end Chris@70: Chris@70: fun copy_url_for context libname = Chris@70: OK (FileBits.file_url (FileBits.libpath context libname)) Chris@70: Chris@70: end Chris@70: Chris@70: structure GitControl :> VCS_CONTROL = struct Chris@70: Chris@70: (* With Git repos we always operate in detached HEAD state. Even Chris@70: the master branch is checked out using a remote reference Chris@76: (repoint/master). The remote we use is always named repoint, and we Chris@70: update it to the expected URL each time we fetch, in order to Chris@70: ensure we update properly if the location given in the project Chris@70: file changes. The origin remote is unused. *) Chris@70: Chris@76: val git_program = "git" Chris@76: Chris@70: fun git_command context libname args = Chris@76: FileBits.command context libname (git_program :: args) Chris@70: Chris@70: fun git_command_output context libname args = Chris@76: FileBits.command_output context libname (git_program :: args) Chris@76: Chris@76: fun is_working context = Chris@76: case git_command_output context "" ["--version"] of Chris@76: OK "" => OK false Chris@76: | OK _ => OK true Chris@76: | ERROR e => ERROR e Chris@70: Chris@70: fun exists context libname = Chris@70: OK (OS.FileSys.isDir (FileBits.subpath context libname ".git")) Chris@70: handle _ => OK false Chris@70: Chris@70: fun remote_for context (libname, source) = Chris@70: Provider.remote_url context GIT source libname Chris@70: Chris@70: fun branch_name branch = case branch of Chris@70: DEFAULT_BRANCH => "master" Chris@70: | BRANCH "" => "master" Chris@70: | BRANCH b => b Chris@70: Chris@76: val our_remote = "repoint" Chris@70: Chris@70: fun remote_branch_name branch = our_remote ^ "/" ^ branch_name branch Chris@70: Chris@70: fun checkout context (libname, source, branch) = Chris@70: let val url = remote_for context (libname, source) Chris@70: in Chris@70: (* make the lib dir rather than just the ext dir, since Chris@70: the lib dir might be nested and git will happily check Chris@70: out into an existing empty dir anyway *) Chris@70: case FileBits.mkpath (FileBits.libpath context libname) of Chris@70: OK () => git_command context "" Chris@70: ["clone", "--origin", our_remote, Chris@70: "--branch", branch_name branch, Chris@70: url, libname] Chris@70: | ERROR e => ERROR e Chris@70: end Chris@70: Chris@70: fun add_our_remote context (libname, source) = Chris@70: (* When we do the checkout ourselves (above), we add the Chris@70: remote at the same time. But if the repo was cloned by Chris@70: someone else, we'll need to do it after the fact. Git Chris@70: doesn't seem to have a means to add a remote or change its Chris@70: url if it already exists; seems we have to do this: *) Chris@70: let val url = remote_for context (libname, source) Chris@70: in Chris@70: case git_command context libname Chris@70: ["remote", "set-url", our_remote, url] of Chris@70: OK () => OK () Chris@70: | ERROR e => git_command context libname Chris@70: ["remote", "add", "-f", our_remote, url] Chris@70: end Chris@70: Chris@70: (* NB git rev-parse HEAD shows revision id of current checkout; Chris@70: git rev-list -1 shows revision id of revision with that tag *) Chris@70: Chris@70: fun id_of context libname = Chris@70: git_command_output context libname ["rev-parse", "HEAD"] Chris@70: Chris@70: fun is_at context (libname, id_or_tag) = Chris@70: case id_of context libname of Chris@70: ERROR e => OK false (* HEAD nonexistent, expected in empty repo *) Chris@70: | OK id => Chris@70: if String.isPrefix id_or_tag id orelse Chris@70: String.isPrefix id id_or_tag Chris@70: then OK true Chris@70: else is_at_tag context (libname, id, id_or_tag) Chris@70: Chris@70: and is_at_tag context (libname, id, tag) = Chris@70: (* For annotated tags (with message) show-ref returns the tag Chris@70: object ref rather than that of the revision being tagged; Chris@70: we need the subsequent rev-list to chase that up. In fact Chris@70: the rev-list on its own is enough to get us the id direct Chris@70: from the tag name, but it fails with an error if the tag Chris@70: doesn't exist, whereas we want to handle that quietly in Chris@70: case the tag simply hasn't been pulled yet *) Chris@70: case git_command_output context libname Chris@70: ["show-ref", "refs/tags/" ^ tag, "--"] of Chris@70: OK "" => OK false (* Not a tag *) Chris@70: | ERROR _ => OK false Chris@70: | OK s => Chris@70: let val tag_ref = hd (String.tokens (fn c => c = #" ") s) Chris@70: in Chris@70: case git_command_output context libname Chris@70: ["rev-list", "-1", tag_ref] of Chris@70: OK tagged => OK (id = tagged) Chris@70: | ERROR _ => OK false Chris@70: end Chris@70: Chris@70: fun branch_tip context (libname, branch) = Chris@70: (* We don't have access to the source info or the network Chris@70: here, as this is used by status (e.g. via is_on_branch) as Chris@70: well as review. It's possible the remote branch won't exist, Chris@70: e.g. if the repo was checked out by something other than Chris@76: Repoint, and if that's the case, we can't add it here; we'll Chris@70: just have to fail, since checking against local branches Chris@70: instead could produce the wrong result. *) Chris@70: git_command_output context libname Chris@70: ["rev-list", "-1", Chris@70: remote_branch_name branch, "--"] Chris@70: Chris@70: fun is_newest_locally context (libname, branch) = Chris@70: case branch_tip context (libname, branch) of Chris@70: ERROR e => OK false Chris@70: | OK rev => is_at context (libname, rev) Chris@70: Chris@70: fun is_on_branch context (libname, branch) = Chris@70: case branch_tip context (libname, branch) of Chris@70: ERROR e => OK false Chris@70: | OK rev => Chris@70: case is_at context (libname, rev) of Chris@70: ERROR e => ERROR e Chris@70: | OK true => OK true Chris@70: | OK false => Chris@70: case git_command context libname Chris@70: ["merge-base", "--is-ancestor", Chris@70: "HEAD", remote_branch_name branch] of Chris@70: ERROR e => OK false (* cmd returns non-zero for no *) Chris@70: | _ => OK true Chris@70: Chris@70: fun fetch context (libname, source) = Chris@70: case add_our_remote context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | _ => git_command context libname ["fetch", our_remote] Chris@70: Chris@70: fun is_newest context (libname, source, branch) = Chris@70: case add_our_remote context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => Chris@70: case is_newest_locally context (libname, branch) of Chris@70: ERROR e => ERROR e Chris@70: | OK false => OK false Chris@70: | OK true => Chris@70: case fetch context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | _ => is_newest_locally context (libname, branch) Chris@70: Chris@70: fun is_modified_locally context libname = Chris@70: case git_command_output context libname ["status", "--porcelain"] of Chris@70: ERROR e => ERROR e Chris@70: | OK "" => OK false Chris@70: | OK _ => OK true Chris@70: Chris@70: (* This function updates to the latest revision on a branch rather Chris@70: than to a specific id or tag. We can't just checkout the given Chris@70: branch, as that will succeed even if the branch isn't up to Chris@70: date. We could checkout the branch and then fetch and merge, Chris@70: but it's perhaps cleaner not to maintain a local branch at all, Chris@70: but instead checkout the remote branch as a detached head. *) Chris@70: Chris@70: fun update context (libname, source, branch) = Chris@70: case fetch context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | _ => Chris@70: case git_command context libname ["checkout", "--detach", Chris@70: remote_branch_name branch] of Chris@70: ERROR e => ERROR e Chris@70: | _ => OK () Chris@70: Chris@70: (* This function is dealing with a specific id or tag, so if we Chris@70: can successfully check it out (detached) then that's all we Chris@70: need to do, regardless of whether fetch succeeded or not. We do Chris@70: attempt the fetch first, though, purely in order to avoid ugly Chris@70: error messages in the common case where we're being asked to Chris@70: update to a new pin (from the lock file) that hasn't been Chris@70: fetched yet. *) Chris@70: Chris@70: fun update_to context (libname, _, "") = Chris@70: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@70: | update_to context (libname, source, id) = Chris@70: let val fetch_result = fetch context (libname, source) Chris@70: in Chris@70: case git_command context libname ["checkout", "--detach", id] of Chris@70: OK _ => OK () Chris@70: | ERROR e => Chris@70: case fetch_result of Chris@70: ERROR e' => ERROR e' (* this was the ur-error *) Chris@70: | _ => ERROR e Chris@70: end Chris@70: Chris@70: fun copy_url_for context libname = Chris@70: OK (FileBits.file_url (FileBits.libpath context libname)) Chris@70: Chris@70: end Chris@70: Chris@70: (* SubXml - A parser for a subset of XML Chris@76: https://bitbucket.org/cannam/sml-subxml Chris@70: Copyright 2018 Chris Cannam. BSD licence. Chris@70: *) Chris@70: Chris@70: signature SUBXML = sig Chris@70: Chris@70: datatype node = ELEMENT of { name : string, children : node list } Chris@70: | ATTRIBUTE of { name : string, value : string } Chris@70: | TEXT of string Chris@70: | CDATA of string Chris@70: | COMMENT of string Chris@70: Chris@70: datatype document = DOCUMENT of { name : string, children : node list } Chris@70: Chris@70: datatype 'a result = OK of 'a Chris@70: | ERROR of string Chris@70: Chris@70: val parse : string -> document result Chris@70: val serialise : document -> string Chris@70: Chris@70: end Chris@70: Chris@70: structure SubXml :> SUBXML = struct Chris@70: Chris@70: datatype node = ELEMENT of { name : string, children : node list } Chris@70: | ATTRIBUTE of { name : string, value : string } Chris@70: | TEXT of string Chris@70: | CDATA of string Chris@70: | COMMENT of string Chris@70: Chris@70: datatype document = DOCUMENT of { name : string, children : node list } Chris@70: Chris@70: datatype 'a result = OK of 'a Chris@70: | ERROR of string Chris@70: Chris@70: structure T = struct Chris@70: datatype token = ANGLE_L Chris@70: | ANGLE_R Chris@70: | ANGLE_SLASH_L Chris@70: | SLASH_ANGLE_R Chris@70: | EQUAL Chris@70: | NAME of string Chris@70: | TEXT of string Chris@70: | CDATA of string Chris@70: | COMMENT of string Chris@70: Chris@70: fun name t = Chris@70: case t of ANGLE_L => "<" Chris@70: | ANGLE_R => ">" Chris@70: | ANGLE_SLASH_L => " "/>" Chris@70: | EQUAL => "=" Chris@70: | NAME s => "name \"" ^ s ^ "\"" Chris@70: | TEXT s => "text" Chris@70: | CDATA _ => "CDATA section" Chris@70: | COMMENT _ => "comment" Chris@70: end Chris@70: Chris@70: structure Lex :> sig Chris@70: val lex : string -> T.token list result Chris@70: end = struct Chris@70: Chris@70: fun error pos text = Chris@70: ERROR (text ^ " at character position " ^ Int.toString (pos-1)) Chris@70: fun tokenError pos token = Chris@70: error pos ("Unexpected token '" ^ Char.toString token ^ "'") Chris@70: Chris@70: val nameEnd = explode " \t\n\r\"'!=?" Chris@70: Chris@70: fun quoted quote pos acc cc = Chris@70: let fun quoted' pos text [] = Chris@70: error pos "Document ends during quoted string" Chris@70: | quoted' pos text (x::xs) = Chris@70: if x = quote Chris@70: then OK (rev text, xs, pos+1) Chris@70: else quoted' (pos+1) (x::text) xs Chris@70: in Chris@70: case quoted' pos [] cc of Chris@70: ERROR e => ERROR e Chris@70: | OK (text, rest, newpos) => Chris@70: inside newpos (T.TEXT (implode text) :: acc) rest Chris@70: end Chris@70: Chris@70: and name first pos acc cc = Chris@70: let fun name' pos text [] = Chris@70: error pos "Document ends during name" Chris@70: | name' pos text (x::xs) = Chris@70: if List.find (fn c => c = x) nameEnd <> NONE Chris@70: then OK (rev text, (x::xs), pos) Chris@70: else name' (pos+1) (x::text) xs Chris@70: in Chris@70: case name' (pos-1) [] (first::cc) of Chris@70: ERROR e => ERROR e Chris@70: | OK ([], [], pos) => error pos "Document ends before name" Chris@70: | OK ([], (x::xs), pos) => tokenError pos x Chris@70: | OK (text, rest, pos) => Chris@70: inside pos (T.NAME (implode text) :: acc) rest Chris@70: end Chris@70: Chris@70: and comment pos acc cc = Chris@70: let fun comment' pos text cc = Chris@70: case cc of Chris@70: #"-" :: #"-" :: #">" :: xs => OK (rev text, xs, pos+3) Chris@70: | x :: xs => comment' (pos+1) (x::text) xs Chris@70: | [] => error pos "Document ends during comment" Chris@70: in Chris@70: case comment' pos [] cc of Chris@70: ERROR e => ERROR e Chris@70: | OK (text, rest, pos) => Chris@70: outside pos (T.COMMENT (implode text) :: acc) rest Chris@70: end Chris@70: Chris@70: and instruction pos acc cc = Chris@70: case cc of Chris@70: #"?" :: #">" :: xs => outside (pos+2) acc xs Chris@70: | #">" :: _ => tokenError pos #">" Chris@70: | x :: xs => instruction (pos+1) acc xs Chris@70: | [] => error pos "Document ends during processing instruction" Chris@70: Chris@70: and cdata pos acc cc = Chris@70: let fun cdata' pos text cc = Chris@70: case cc of Chris@70: #"]" :: #"]" :: #">" :: xs => OK (rev text, xs, pos+3) Chris@70: | x :: xs => cdata' (pos+1) (x::text) xs Chris@70: | [] => error pos "Document ends during CDATA section" Chris@70: in Chris@70: case cdata' pos [] cc of Chris@70: ERROR e => ERROR e Chris@70: | OK (text, rest, pos) => Chris@70: outside pos (T.CDATA (implode text) :: acc) rest Chris@70: end Chris@70: Chris@70: and doctype pos acc cc = Chris@70: case cc of Chris@70: #">" :: xs => outside (pos+1) acc xs Chris@70: | x :: xs => doctype (pos+1) acc xs Chris@70: | [] => error pos "Document ends during DOCTYPE" Chris@70: Chris@70: and declaration pos acc cc = Chris@70: case cc of Chris@70: #"-" :: #"-" :: xs => Chris@70: comment (pos+2) acc xs Chris@70: | #"[" :: #"C" :: #"D" :: #"A" :: #"T" :: #"A" :: #"[" :: xs => Chris@70: cdata (pos+7) acc xs Chris@70: | #"D" :: #"O" :: #"C" :: #"T" :: #"Y" :: #"P" :: #"E" :: xs => Chris@70: doctype (pos+7) acc xs Chris@70: | [] => error pos "Document ends during declaration" Chris@70: | _ => error pos "Unsupported declaration type" Chris@70: Chris@70: and left pos acc cc = Chris@70: case cc of Chris@70: #"/" :: xs => inside (pos+1) (T.ANGLE_SLASH_L :: acc) xs Chris@70: | #"!" :: xs => declaration (pos+1) acc xs Chris@70: | #"?" :: xs => instruction (pos+1) acc xs Chris@70: | xs => inside pos (T.ANGLE_L :: acc) xs Chris@70: Chris@70: and slash pos acc cc = Chris@70: case cc of Chris@70: #">" :: xs => outside (pos+1) (T.SLASH_ANGLE_R :: acc) xs Chris@70: | x :: _ => tokenError pos x Chris@70: | [] => error pos "Document ends before element closed" Chris@70: Chris@70: and close pos acc xs = outside pos (T.ANGLE_R :: acc) xs Chris@70: Chris@70: and equal pos acc xs = inside pos (T.EQUAL :: acc) xs Chris@70: Chris@70: and outside pos acc [] = OK acc Chris@70: | outside pos acc cc = Chris@70: let fun textOf text = T.TEXT (implode (rev text)) Chris@70: fun outside' pos [] acc [] = OK acc Chris@70: | outside' pos text acc [] = OK (textOf text :: acc) Chris@70: | outside' pos text acc (x::xs) = Chris@70: case x of Chris@70: #"<" => if text = [] Chris@70: then left (pos+1) acc xs Chris@70: else left (pos+1) (textOf text :: acc) xs Chris@70: | x => outside' (pos+1) (x::text) acc xs Chris@70: in Chris@70: outside' pos [] acc cc Chris@70: end Chris@70: Chris@70: and inside pos acc [] = error pos "Document ends within tag" Chris@70: | inside pos acc (#"<"::_) = tokenError pos #"<" Chris@70: | inside pos acc (x::xs) = Chris@70: (case x of Chris@70: #" " => inside | #"\t" => inside Chris@70: | #"\n" => inside | #"\r" => inside Chris@70: | #"\"" => quoted x | #"'" => quoted x Chris@70: | #"/" => slash | #">" => close | #"=" => equal Chris@70: | x => name x) (pos+1) acc xs Chris@70: Chris@70: fun lex str = Chris@70: case outside 1 [] (explode str) of Chris@70: ERROR e => ERROR e Chris@70: | OK tokens => OK (rev tokens) Chris@70: end Chris@70: Chris@70: structure Parse :> sig Chris@70: val parse : string -> document result Chris@70: end = struct Chris@70: Chris@70: fun show [] = "end of input" Chris@70: | show (tok :: _) = T.name tok Chris@70: Chris@70: fun error toks text = ERROR (text ^ " before " ^ show toks) Chris@70: Chris@70: fun attribute elt name toks = Chris@70: case toks of Chris@70: T.EQUAL :: T.TEXT value :: xs => Chris@70: namedElement { Chris@70: name = #name elt, Chris@70: children = ATTRIBUTE { name = name, value = value } :: Chris@70: #children elt Chris@70: } xs Chris@70: | T.EQUAL :: xs => error xs "Expected attribute value" Chris@70: | toks => error toks "Expected attribute assignment" Chris@70: Chris@70: and content elt toks = Chris@70: case toks of Chris@70: T.ANGLE_SLASH_L :: T.NAME n :: T.ANGLE_R :: xs => Chris@70: if n = #name elt Chris@70: then OK (elt, xs) Chris@70: else ERROR ("Closing tag " ^ Chris@70: "does not match opening <" ^ #name elt ^ ">") Chris@70: | T.TEXT text :: xs => Chris@70: content { Chris@70: name = #name elt, Chris@70: children = TEXT text :: #children elt Chris@70: } xs Chris@70: | T.CDATA text :: xs => Chris@70: content { Chris@70: name = #name elt, Chris@70: children = CDATA text :: #children elt Chris@70: } xs Chris@70: | T.COMMENT text :: xs => Chris@70: content { Chris@70: name = #name elt, Chris@70: children = COMMENT text :: #children elt Chris@70: } xs Chris@70: | T.ANGLE_L :: xs => Chris@70: (case element xs of Chris@70: ERROR e => ERROR e Chris@70: | OK (child, xs) => Chris@70: content { Chris@70: name = #name elt, Chris@70: children = ELEMENT child :: #children elt Chris@70: } xs) Chris@70: | tok :: xs => Chris@70: error xs ("Unexpected token " ^ T.name tok) Chris@70: | [] => Chris@70: ERROR ("Document ends within element \"" ^ #name elt ^ "\"") Chris@70: Chris@70: and namedElement elt toks = Chris@70: case toks of Chris@70: T.SLASH_ANGLE_R :: xs => OK (elt, xs) Chris@70: | T.NAME name :: xs => attribute elt name xs Chris@70: | T.ANGLE_R :: xs => content elt xs Chris@70: | x :: xs => error xs ("Unexpected token " ^ T.name x) Chris@70: | [] => ERROR "Document ends within opening tag" Chris@70: Chris@70: and element toks = Chris@70: case toks of Chris@70: T.NAME name :: xs => Chris@70: (case namedElement { name = name, children = [] } xs of Chris@70: ERROR e => ERROR e Chris@70: | OK ({ name, children }, xs) => Chris@70: OK ({ name = name, children = rev children }, xs)) Chris@70: | toks => error toks "Expected element name" Chris@70: Chris@70: and document [] = ERROR "Empty document" Chris@70: | document (tok :: xs) = Chris@70: case tok of Chris@70: T.TEXT _ => document xs Chris@70: | T.COMMENT _ => document xs Chris@70: | T.ANGLE_L => Chris@70: (case element xs of Chris@70: ERROR e => ERROR e Chris@70: | OK (elt, []) => OK (DOCUMENT elt) Chris@70: | OK (elt, (T.TEXT _ :: xs)) => OK (DOCUMENT elt) Chris@70: | OK (elt, xs) => error xs "Extra data after document") Chris@70: | _ => error xs ("Unexpected token " ^ T.name tok) Chris@70: Chris@70: fun parse str = Chris@70: case Lex.lex str of Chris@70: ERROR e => ERROR e Chris@70: | OK tokens => document tokens Chris@70: end Chris@70: Chris@70: structure Serialise :> sig Chris@70: val serialise : document -> string Chris@70: end = struct Chris@70: Chris@70: fun attributes nodes = Chris@70: String.concatWith Chris@70: " " Chris@70: (map node (List.filter Chris@70: (fn ATTRIBUTE _ => true | _ => false) Chris@70: nodes)) Chris@70: Chris@70: and nonAttributes nodes = Chris@70: String.concat Chris@70: (map node (List.filter Chris@70: (fn ATTRIBUTE _ => false | _ => true) Chris@70: nodes)) Chris@70: Chris@70: and node n = Chris@70: case n of Chris@70: TEXT string => Chris@70: string Chris@70: | CDATA string => Chris@70: "" Chris@70: | COMMENT string => Chris@70: "" Chris@70: | ATTRIBUTE { name, value } => Chris@70: name ^ "=" ^ "\"" ^ value ^ "\"" (*!!!*) Chris@70: | ELEMENT { name, children } => Chris@70: "<" ^ name ^ Chris@70: (case (attributes children) of Chris@70: "" => "" Chris@70: | s => " " ^ s) ^ Chris@70: (case (nonAttributes children) of Chris@70: "" => "/>" Chris@70: | s => ">" ^ s ^ "") Chris@70: Chris@70: fun serialise (DOCUMENT { name, children }) = Chris@70: "\n" ^ Chris@70: node (ELEMENT { name = name, children = children }) Chris@70: end Chris@70: Chris@70: val parse = Parse.parse Chris@70: val serialise = Serialise.serialise Chris@70: Chris@70: end Chris@70: Chris@70: Chris@70: structure SvnControl :> VCS_CONTROL = struct Chris@70: Chris@76: val svn_program = "svn" Chris@76: Chris@70: fun svn_command context libname args = Chris@76: FileBits.command context libname (svn_program :: args) Chris@70: Chris@70: fun svn_command_output context libname args = Chris@76: FileBits.command_output context libname (svn_program :: args) Chris@70: Chris@70: fun svn_command_lines context libname args = Chris@70: case svn_command_output context libname args of Chris@70: ERROR e => ERROR e Chris@70: | OK s => OK (String.tokens (fn c => c = #"\n" orelse c = #"\r") s) Chris@70: Chris@70: fun split_line_pair line = Chris@70: let fun strip_leading_ws str = case explode str of Chris@70: #" "::rest => implode rest Chris@70: | _ => str Chris@70: in Chris@70: case String.tokens (fn c => c = #":") line of Chris@70: [] => ("", "") Chris@70: | first::rest => Chris@70: (first, strip_leading_ws (String.concatWith ":" rest)) Chris@70: end Chris@70: Chris@76: fun is_working context = Chris@76: case svn_command_output context "" ["--version"] of Chris@76: OK "" => OK false Chris@76: | OK _ => OK true Chris@76: | ERROR e => ERROR e Chris@76: Chris@70: structure X = SubXml Chris@70: Chris@70: fun svn_info context libname route = Chris@70: (* SVN 1.9 has info --show-item which is just what we need, Chris@70: but at this point we still have 1.8 on the CI boxes so we Chris@70: might as well aim to support it. For that we really have to Chris@70: use the XML output format, since the default info output is Chris@70: localised. This is the only thing our mini-XML parser is Chris@70: used for though, so it would be good to trim it at some Chris@70: point *) Chris@70: let fun find elt [] = OK elt Chris@70: | find { children, ... } (first :: rest) = Chris@70: case List.find (fn (X.ELEMENT { name, ... }) => name = first Chris@70: | _ => false) Chris@70: children of Chris@70: NONE => ERROR ("No element \"" ^ first ^ "\" in SVN XML") Chris@70: | SOME (X.ELEMENT e) => find e rest Chris@70: | SOME _ => ERROR "Internal error" Chris@70: in Chris@70: case svn_command_output context libname ["info", "--xml"] of Chris@70: ERROR e => ERROR e Chris@70: | OK xml => Chris@70: case X.parse xml of Chris@70: X.ERROR e => ERROR e Chris@70: | X.OK (X.DOCUMENT doc) => find doc route Chris@70: end Chris@70: Chris@70: fun exists context libname = Chris@70: OK (OS.FileSys.isDir (FileBits.subpath context libname ".svn")) Chris@70: handle _ => OK false Chris@70: Chris@70: fun remote_for context (libname, source) = Chris@70: Provider.remote_url context SVN source libname Chris@70: Chris@70: (* Remote the checkout came from, not necessarily the one we want *) Chris@70: fun actual_remote_for context libname = Chris@70: case svn_info context libname ["entry", "url"] of Chris@70: ERROR e => ERROR e Chris@70: | OK { children, ... } => Chris@70: case List.find (fn (X.TEXT _) => true | _ => false) children of Chris@70: NONE => ERROR "No content for URL in SVN info XML" Chris@70: | SOME (X.TEXT url) => OK url Chris@70: | SOME _ => ERROR "Internal error" Chris@70: Chris@70: fun id_of context libname = Chris@70: case svn_info context libname ["entry"] of Chris@70: ERROR e => ERROR e Chris@70: | OK { children, ... } => Chris@70: case List.find Chris@70: (fn (X.ATTRIBUTE { name = "revision", ... }) => true Chris@70: | _ => false) Chris@70: children of Chris@70: NONE => ERROR "No revision for entry in SVN info XML" Chris@70: | SOME (X.ATTRIBUTE { value, ... }) => OK value Chris@70: | SOME _ => ERROR "Internal error" Chris@70: Chris@70: fun is_at context (libname, id_or_tag) = Chris@70: case id_of context libname of Chris@70: ERROR e => ERROR e Chris@70: | OK id => OK (id = id_or_tag) Chris@70: Chris@70: fun is_on_branch context (libname, b) = Chris@70: OK (b = DEFAULT_BRANCH) Chris@70: Chris@70: fun check_remote context (libname, source) = Chris@70: case (remote_for context (libname, source), Chris@70: actual_remote_for context libname) of Chris@70: (_, ERROR e) => ERROR e Chris@70: | (url, OK actual) => Chris@70: if actual = url Chris@70: then OK () Chris@70: else svn_command context libname ["relocate", url] Chris@70: Chris@70: fun is_newest context (libname, source, branch) = Chris@70: case check_remote context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => Chris@70: case svn_command_lines context libname Chris@70: ["status", "--show-updates"] of Chris@70: ERROR e => ERROR e Chris@70: | OK lines => Chris@70: case rev lines of Chris@70: [] => ERROR "No result returned for server status" Chris@70: | last_line::_ => Chris@70: case rev (String.tokens (fn c => c = #" ") last_line) of Chris@70: [] => ERROR "No revision field found in server status" Chris@70: | server_id::_ => is_at context (libname, server_id) Chris@70: Chris@70: fun is_newest_locally context (libname, branch) = Chris@70: OK true (* no local history *) Chris@70: Chris@70: fun is_modified_locally context libname = Chris@70: case svn_command_output context libname ["status"] of Chris@70: ERROR e => ERROR e Chris@70: | OK "" => OK false Chris@70: | OK _ => OK true Chris@70: Chris@70: fun checkout context (libname, source, branch) = Chris@70: let val url = remote_for context (libname, source) Chris@70: val path = FileBits.libpath context libname Chris@70: in Chris@70: if FileBits.nonempty_dir_exists path Chris@70: then (* Surprisingly, SVN itself has no problem with Chris@70: this. But for consistency with other VCSes we Chris@70: don't allow it *) Chris@70: ERROR ("Refusing checkout to nonempty dir \"" ^ path ^ "\"") Chris@70: else Chris@70: (* make the lib dir rather than just the ext dir, since Chris@70: the lib dir might be nested and svn will happily check Chris@70: out into an existing empty dir anyway *) Chris@70: case FileBits.mkpath (FileBits.libpath context libname) of Chris@70: ERROR e => ERROR e Chris@70: | _ => svn_command context "" ["checkout", url, libname] Chris@70: end Chris@70: Chris@70: fun update context (libname, source, branch) = Chris@70: case check_remote context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => Chris@70: case svn_command context libname Chris@70: ["update", "--accept", "postpone"] of Chris@70: ERROR e => ERROR e Chris@70: | _ => OK () Chris@70: Chris@70: fun update_to context (libname, _, "") = Chris@70: ERROR "Non-empty id (tag or revision id) required for update_to" Chris@70: | update_to context (libname, source, id) = Chris@70: case check_remote context (libname, source) of Chris@70: ERROR e => ERROR e Chris@70: | OK () => Chris@70: case svn_command context libname Chris@70: ["update", "-r", id, "--accept", "postpone"] of Chris@70: ERROR e => ERROR e Chris@70: | OK _ => OK () Chris@70: Chris@70: fun copy_url_for context libname = Chris@70: actual_remote_for context libname Chris@70: Chris@70: end Chris@70: Chris@70: structure AnyLibControl :> LIB_CONTROL = struct Chris@70: Chris@70: structure H = LibControlFn(HgControl) Chris@70: structure G = LibControlFn(GitControl) Chris@70: structure S = LibControlFn(SvnControl) Chris@70: Chris@70: fun review context (spec as { vcs, ... } : libspec) = Chris@70: (fn HG => H.review | GIT => G.review | SVN => S.review) vcs context spec Chris@70: Chris@70: fun status context (spec as { vcs, ... } : libspec) = Chris@70: (fn HG => H.status | GIT => G.status | SVN => S.status) vcs context spec Chris@70: Chris@70: fun update context (spec as { vcs, ... } : libspec) = Chris@70: (fn HG => H.update | GIT => G.update | SVN => S.update) vcs context spec Chris@70: Chris@70: fun id_of context (spec as { vcs, ... } : libspec) = Chris@70: (fn HG => H.id_of | GIT => G.id_of | SVN => S.id_of) vcs context spec Chris@70: Chris@76: fun is_working context vcs = Chris@76: (fn HG => H.is_working | GIT => G.is_working | SVN => S.is_working) Chris@76: vcs context vcs Chris@76: Chris@70: end Chris@70: Chris@70: Chris@70: type exclusions = string list Chris@70: Chris@70: structure Archive :> sig Chris@70: Chris@70: val archive : string * exclusions -> project -> OS.Process.status Chris@70: Chris@70: end = struct Chris@70: Chris@70: (* The idea of "archive" is to replace hg/git archive, which won't Chris@76: include files, like the Repoint-introduced external libraries, Chris@70: that are not under version control with the main repo. Chris@70: Chris@70: The process goes like this: Chris@70: Chris@70: - Make sure we have a target filename from the user, and take Chris@70: its basename as our archive directory name Chris@70: Chris@70: - Make an "archive root" subdir of the project repo, named Chris@76: typically .repoint-archive Chris@70: Chris@70: - Identify the VCS used for the project repo. Note that any Chris@70: explicit references to VCS type in this structure are to Chris@76: the VCS used for the project (something Repoint doesn't Chris@70: otherwise care about), not for an individual library Chris@70: Chris@76: - Synthesise a Repoint project with the archive root as its Chris@70: root path, "." as its extdir, with one library whose Chris@70: name is the user-supplied basename and whose explicit Chris@70: source URL is the original project root; update that Chris@70: project -- thus cloning the original project to a subdir Chris@70: of the archive root Chris@70: Chris@76: - Synthesise a Repoint project identical to the original one for Chris@70: this project, but with the newly-cloned copy as its root Chris@70: path; update that project -- thus checking out clean copies Chris@70: of the external library dirs Chris@70: Chris@70: - Call out to an archive program to archive up the new copy, Chris@70: running e.g. Chris@70: tar cvzf project-release.tar.gz \ Chris@70: --exclude=.hg --exclude=.git project-release Chris@70: in the archive root dir Chris@70: Chris@76: - (We also omit the repoint-project.json file and any trace of Chris@76: Repoint. It can't properly be run in a directory where the Chris@70: external project folders already exist but their repo history Chris@76: does not. End users shouldn't get to see Repoint) Chris@70: Chris@70: - Clean up by deleting the new copy Chris@70: *) Chris@70: Chris@70: fun project_vcs_id_and_url dir = Chris@70: let val context = { Chris@70: rootpath = dir, Chris@70: extdir = ".", Chris@70: providers = [], Chris@70: accounts = [] Chris@70: } Chris@70: val vcs_maybe = Chris@70: case [HgControl.exists context ".", Chris@70: GitControl.exists context ".", Chris@70: SvnControl.exists context "."] of Chris@70: [OK true, OK false, OK false] => OK HG Chris@70: | [OK false, OK true, OK false] => OK GIT Chris@70: | [OK false, OK false, OK true] => OK SVN Chris@70: | _ => ERROR ("Unable to identify VCS for directory " ^ dir) Chris@70: in Chris@70: case vcs_maybe of Chris@70: ERROR e => ERROR e Chris@70: | OK vcs => Chris@70: case (fn HG => HgControl.id_of Chris@70: | GIT => GitControl.id_of Chris@70: | SVN => SvnControl.id_of) Chris@70: vcs context "." of Chris@70: ERROR e => ERROR ("Unable to find id of project repo: " ^ e) Chris@70: | OK id => Chris@70: case (fn HG => HgControl.copy_url_for Chris@70: | GIT => GitControl.copy_url_for Chris@70: | SVN => SvnControl.copy_url_for) Chris@70: vcs context "." of Chris@70: ERROR e => ERROR ("Unable to find URL of project repo: " Chris@70: ^ e) Chris@70: | OK url => OK (vcs, id, url) Chris@70: end Chris@70: Chris@70: fun make_archive_root (context : context) = Chris@70: let val path = OS.Path.joinDirFile { Chris@70: dir = #rootpath context, Chris@76: file = RepointFilenames.archive_dir Chris@70: } Chris@70: in Chris@70: case FileBits.mkpath path of Chris@70: ERROR e => raise Fail ("Failed to create archive directory \"" Chris@70: ^ path ^ "\": " ^ e) Chris@70: | OK () => path Chris@70: end Chris@70: Chris@70: fun archive_path archive_dir target_name = Chris@70: OS.Path.joinDirFile { Chris@70: dir = archive_dir, Chris@70: file = target_name Chris@70: } Chris@70: Chris@70: fun check_nonexistent path = Chris@70: case SOME (OS.FileSys.fileSize path) handle OS.SysErr _ => NONE of Chris@70: NONE => () Chris@70: | _ => raise Fail ("Path " ^ path ^ " exists, not overwriting") Chris@70: Chris@70: fun make_archive_copy target_name (vcs, project_id, source_url) Chris@70: ({ context, ... } : project) = Chris@70: let val archive_root = make_archive_root context Chris@70: val synthetic_context = { Chris@70: rootpath = archive_root, Chris@70: extdir = ".", Chris@70: providers = [], Chris@70: accounts = [] Chris@70: } Chris@70: val synthetic_library = { Chris@70: libname = target_name, Chris@70: vcs = vcs, Chris@70: source = URL_SOURCE source_url, Chris@70: branch = DEFAULT_BRANCH, (* overridden by pinned id below *) Chris@70: project_pin = PINNED project_id, Chris@70: lock_pin = PINNED project_id Chris@70: } Chris@70: val path = archive_path archive_root target_name Chris@70: val _ = print ("Cloning original project to " ^ path Chris@70: ^ " at revision " ^ project_id ^ "...\n"); Chris@70: val _ = check_nonexistent path Chris@70: in Chris@70: case AnyLibControl.update synthetic_context synthetic_library of Chris@70: ERROR e => ERROR ("Failed to clone original project to " Chris@70: ^ path ^ ": " ^ e) Chris@70: | OK _ => OK archive_root Chris@70: end Chris@70: Chris@70: fun update_archive archive_root target_name Chris@70: (project as { context, ... } : project) = Chris@70: let val synthetic_context = { Chris@70: rootpath = archive_path archive_root target_name, Chris@70: extdir = #extdir context, Chris@70: providers = #providers context, Chris@70: accounts = #accounts context Chris@70: } Chris@70: in Chris@70: foldl (fn (lib, acc) => Chris@70: case acc of Chris@70: ERROR e => ERROR e Chris@70: | OK () => AnyLibControl.update synthetic_context lib) Chris@70: (OK ()) Chris@70: (#libs project) Chris@70: end Chris@70: Chris@70: datatype packer = TAR Chris@70: | TAR_GZ Chris@70: | TAR_BZ2 Chris@70: | TAR_XZ Chris@70: (* could add other packers, e.g. zip, if we knew how to Chris@70: handle the file omissions etc properly in pack_archive *) Chris@70: Chris@70: fun packer_and_basename path = Chris@70: let val extensions = [ (".tar", TAR), Chris@70: (".tar.gz", TAR_GZ), Chris@70: (".tar.bz2", TAR_BZ2), Chris@70: (".tar.xz", TAR_XZ)] Chris@70: val filename = OS.Path.file path Chris@70: in Chris@70: foldl (fn ((ext, packer), acc) => Chris@70: if String.isSuffix ext filename Chris@70: then SOME (packer, Chris@70: String.substring (filename, 0, Chris@70: String.size filename - Chris@70: String.size ext)) Chris@70: else acc) Chris@70: NONE Chris@70: extensions Chris@70: end Chris@70: Chris@70: fun pack_archive archive_root target_name target_path packer exclusions = Chris@70: case FileBits.command { Chris@70: rootpath = archive_root, Chris@70: extdir = ".", Chris@70: providers = [], Chris@70: accounts = [] Chris@70: } "" ([ Chris@70: "tar", Chris@70: case packer of Chris@70: TAR => "cf" Chris@70: | TAR_GZ => "czf" Chris@70: | TAR_BZ2 => "cjf" Chris@70: | TAR_XZ => "cJf", Chris@70: target_path, Chris@70: "--exclude=.hg", Chris@70: "--exclude=.git", Chris@70: "--exclude=.svn", Chris@76: "--exclude=repoint", Chris@76: "--exclude=repoint.sml", Chris@76: "--exclude=repoint.ps1", Chris@76: "--exclude=repoint.bat", Chris@76: "--exclude=repoint-project.json", Chris@76: "--exclude=repoint-lock.json" Chris@70: ] @ (map (fn e => "--exclude=" ^ e) exclusions) @ Chris@70: [ target_name ]) Chris@70: of Chris@70: ERROR e => ERROR e Chris@70: | OK _ => FileBits.rmpath (archive_path archive_root target_name) Chris@70: Chris@70: fun archive (target_path, exclusions) (project : project) = Chris@70: let val _ = check_nonexistent target_path Chris@70: val (packer, name) = Chris@70: case packer_and_basename target_path of Chris@70: NONE => raise Fail ("Unsupported archive file extension in " Chris@70: ^ target_path) Chris@70: | SOME pn => pn Chris@70: val details = Chris@70: case project_vcs_id_and_url (#rootpath (#context project)) of Chris@70: ERROR e => raise Fail e Chris@70: | OK details => details Chris@70: val archive_root = Chris@70: case make_archive_copy name details project of Chris@70: ERROR e => raise Fail e Chris@70: | OK archive_root => archive_root Chris@70: val outcome = Chris@70: case update_archive archive_root name project of Chris@70: ERROR e => ERROR e Chris@70: | OK _ => Chris@70: case pack_archive archive_root name Chris@70: target_path packer exclusions of Chris@70: ERROR e => ERROR e Chris@70: | OK _ => OK () Chris@70: in Chris@70: case outcome of Chris@70: ERROR e => raise Fail e Chris@70: | OK () => OS.Process.success Chris@70: end Chris@70: Chris@70: end Chris@70: Chris@70: val libobjname = "libraries" Chris@70: Chris@70: fun load_libspec spec_json lock_json libname : libspec = Chris@70: let open JsonBits Chris@70: val libobj = lookup_mandatory spec_json [libobjname, libname] Chris@70: val vcs = lookup_mandatory_string libobj ["vcs"] Chris@70: val retrieve = lookup_optional_string libobj Chris@70: val service = retrieve ["service"] Chris@70: val owner = retrieve ["owner"] Chris@70: val repo = retrieve ["repository"] Chris@70: val url = retrieve ["url"] Chris@70: val branch = retrieve ["branch"] Chris@70: val project_pin = case retrieve ["pin"] of Chris@70: NONE => UNPINNED Chris@70: | SOME p => PINNED p Chris@70: val lock_pin = case lookup_optional lock_json [libobjname, libname] of Chris@70: NONE => UNPINNED Chris@70: | SOME ll => case lookup_optional_string ll ["pin"] of Chris@70: SOME p => PINNED p Chris@70: | NONE => UNPINNED Chris@70: in Chris@70: { Chris@70: libname = libname, Chris@70: vcs = case vcs of Chris@70: "hg" => HG Chris@70: | "git" => GIT Chris@70: | "svn" => SVN Chris@70: | other => raise Fail ("Unknown version-control system \"" ^ Chris@70: other ^ "\""), Chris@70: source = case (url, service, owner, repo) of Chris@70: (SOME u, NONE, _, _) => URL_SOURCE u Chris@70: | (NONE, SOME ss, owner, repo) => Chris@70: SERVICE_SOURCE { service = ss, owner = owner, repo = repo } Chris@70: | _ => raise Fail ("Must have exactly one of service " ^ Chris@70: "or url string"), Chris@70: project_pin = project_pin, Chris@70: lock_pin = lock_pin, Chris@70: branch = case branch of Chris@70: NONE => DEFAULT_BRANCH Chris@70: | SOME b => Chris@70: case vcs of Chris@70: "svn" => raise Fail ("Branches not supported for " ^ Chris@70: "svn repositories; change " ^ Chris@70: "URL instead") Chris@70: | _ => BRANCH b Chris@70: } Chris@70: end Chris@70: Chris@70: fun load_userconfig () : userconfig = Chris@70: let val home = FileBits.homedir () Chris@70: val conf_json = Chris@70: JsonBits.load_json_from Chris@70: (OS.Path.joinDirFile { Chris@70: dir = home, Chris@76: file = RepointFilenames.user_config_file }) Chris@70: handle IO.Io _ => Json.OBJECT [] Chris@70: in Chris@70: { Chris@70: accounts = case JsonBits.lookup_optional conf_json ["accounts"] of Chris@70: NONE => [] Chris@70: | SOME (Json.OBJECT aa) => Chris@70: map (fn (k, (Json.STRING v)) => Chris@70: { service = k, login = v } Chris@70: | _ => raise Fail Chris@70: "String expected for account name") Chris@70: aa Chris@70: | _ => raise Fail "Array expected for accounts", Chris@70: providers = Provider.load_providers conf_json Chris@70: } Chris@70: end Chris@70: Chris@70: datatype pintype = Chris@70: NO_LOCKFILE | Chris@70: USE_LOCKFILE Chris@70: Chris@70: fun load_project (userconfig : userconfig) rootpath pintype : project = Chris@70: let val spec_file = FileBits.project_spec_path rootpath Chris@70: val lock_file = FileBits.project_lock_path rootpath Chris@70: val _ = if OS.FileSys.access (spec_file, [OS.FileSys.A_READ]) Chris@70: handle OS.SysErr _ => false Chris@70: then () Chris@70: else raise Fail ("Failed to open project spec file " ^ Chris@76: (RepointFilenames.project_file) ^ " in " ^ Chris@70: rootpath ^ Chris@70: ".\nPlease ensure the spec file is in the " ^ Chris@70: "project root and run this from there.") Chris@70: val spec_json = JsonBits.load_json_from spec_file Chris@70: val lock_json = if pintype = USE_LOCKFILE Chris@70: then JsonBits.load_json_from lock_file Chris@70: handle IO.Io _ => Json.OBJECT [] Chris@70: else Json.OBJECT [] Chris@70: val extdir = JsonBits.lookup_mandatory_string spec_json Chris@70: ["config", "extdir"] Chris@70: val spec_libs = JsonBits.lookup_optional spec_json [libobjname] Chris@70: val lock_libs = JsonBits.lookup_optional lock_json [libobjname] Chris@70: val providers = Provider.load_more_providers Chris@70: (#providers userconfig) spec_json Chris@70: val libnames = case spec_libs of Chris@70: NONE => [] Chris@70: | SOME (Json.OBJECT ll) => map (fn (k, v) => k) ll Chris@70: | _ => raise Fail "Object expected for libs" Chris@70: in Chris@70: { Chris@70: context = { Chris@70: rootpath = rootpath, Chris@70: extdir = extdir, Chris@70: providers = providers, Chris@70: accounts = #accounts userconfig Chris@70: }, Chris@70: libs = map (load_libspec spec_json lock_json) libnames Chris@70: } Chris@70: end Chris@70: Chris@70: fun save_lock_file rootpath locks = Chris@70: let val lock_file = FileBits.project_lock_path rootpath Chris@70: open Json Chris@70: val lock_json = Chris@70: OBJECT [ Chris@70: (libobjname, Chris@70: OBJECT (map (fn { libname, id_or_tag } => Chris@70: (libname, Chris@70: OBJECT [ ("pin", STRING id_or_tag) ])) Chris@70: locks)) Chris@70: ] Chris@70: in Chris@70: JsonBits.save_json_to lock_file lock_json Chris@70: end Chris@70: Chris@70: fun pad_to n str = Chris@70: if n <= String.size str then str Chris@70: else pad_to n (str ^ " ") Chris@70: Chris@70: fun hline_to 0 = "" Chris@70: | hline_to n = "-" ^ hline_to (n-1) Chris@70: Chris@70: val libname_width = 28 Chris@70: val libstate_width = 11 Chris@70: val localstate_width = 17 Chris@70: val notes_width = 5 Chris@70: val divider = " | " Chris@70: val clear_line = "\r" ^ pad_to 80 ""; Chris@70: Chris@70: fun print_status_header () = Chris@70: print (clear_line ^ "\n " ^ Chris@70: pad_to libname_width "Library" ^ divider ^ Chris@70: pad_to libstate_width "State" ^ divider ^ Chris@70: pad_to localstate_width "Local" ^ divider ^ Chris@70: "Notes" ^ "\n " ^ Chris@70: hline_to libname_width ^ "-+-" ^ Chris@70: hline_to libstate_width ^ "-+-" ^ Chris@70: hline_to localstate_width ^ "-+-" ^ Chris@70: hline_to notes_width ^ "\n") Chris@70: Chris@70: fun print_outcome_header () = Chris@70: print (clear_line ^ "\n " ^ Chris@70: pad_to libname_width "Library" ^ divider ^ Chris@70: pad_to libstate_width "Outcome" ^ divider ^ Chris@70: "Notes" ^ "\n " ^ Chris@70: hline_to libname_width ^ "-+-" ^ Chris@70: hline_to libstate_width ^ "-+-" ^ Chris@70: hline_to notes_width ^ "\n") Chris@70: Chris@76: fun print_status with_network (lib : libspec, status) = Chris@70: let val libstate_str = Chris@70: case status of Chris@70: OK (ABSENT, _) => "Absent" Chris@70: | OK (CORRECT, _) => if with_network then "Correct" else "Present" Chris@70: | OK (SUPERSEDED, _) => "Superseded" Chris@70: | OK (WRONG, _) => "Wrong" Chris@70: | ERROR _ => "Error" Chris@70: val localstate_str = Chris@70: case status of Chris@70: OK (_, MODIFIED) => "Modified" Chris@70: | OK (_, LOCK_MISMATCHED) => "Differs from Lock" Chris@70: | OK (_, CLEAN) => "Clean" Chris@70: | ERROR _ => "" Chris@70: val error_str = Chris@70: case status of Chris@70: ERROR e => e Chris@70: | _ => "" Chris@70: in Chris@70: print (" " ^ Chris@76: pad_to libname_width (#libname lib) ^ divider ^ Chris@70: pad_to libstate_width libstate_str ^ divider ^ Chris@70: pad_to localstate_width localstate_str ^ divider ^ Chris@70: error_str ^ "\n") Chris@70: end Chris@70: Chris@76: fun print_update_outcome (lib : libspec, outcome) = Chris@70: let val outcome_str = Chris@70: case outcome of Chris@70: OK id => "Ok" Chris@70: | ERROR e => "Failed" Chris@70: val error_str = Chris@70: case outcome of Chris@70: ERROR e => e Chris@70: | _ => "" Chris@70: in Chris@70: print (" " ^ Chris@76: pad_to libname_width (#libname lib) ^ divider ^ Chris@70: pad_to libstate_width outcome_str ^ divider ^ Chris@70: error_str ^ "\n") Chris@70: end Chris@70: Chris@76: fun vcs_name HG = ("Mercurial", "hg") Chris@76: | vcs_name GIT = ("Git", "git") Chris@76: | vcs_name SVN = ("Subversion", "svn") Chris@76: Chris@76: fun print_problem_summary context lines = Chris@76: let val failed_vcs = Chris@76: foldl (fn (({ vcs, ... } : libspec, ERROR _), acc) => vcs::acc Chris@76: | (_, acc) => acc) [] lines Chris@76: fun report_nonworking vcs error = Chris@76: print ((if error = "" then "" else error ^ "\n\n") ^ Chris@76: "Error: The project uses the " ^ (#1 (vcs_name vcs)) ^ Chris@76: " version control system, but its\n" ^ Chris@76: "executable program (" ^ (#2 (vcs_name vcs)) ^ Chris@76: ") does not appear to be installed in the program path\n\n") Chris@76: fun check_working [] checked = () Chris@76: | check_working (vcs::rest) checked = Chris@76: if List.exists (fn v => vcs = v) checked Chris@76: then check_working rest checked Chris@76: else Chris@76: case AnyLibControl.is_working context vcs of Chris@76: OK true => check_working rest checked Chris@76: | OK false => (report_nonworking vcs ""; Chris@76: check_working rest (vcs::checked)) Chris@76: | ERROR e => (report_nonworking vcs e; Chris@76: check_working rest (vcs::checked)) Chris@76: in Chris@76: print "\nError: Some operations failed\n\n"; Chris@76: check_working failed_vcs [] Chris@76: end Chris@76: Chris@76: fun act_and_print action print_header print_line context (libs : libspec list) = Chris@76: let val lines = map (fn lib => (lib, action lib)) libs Chris@76: val imperfect = List.exists (fn (_, ERROR _) => true | _ => false) lines Chris@70: val _ = print_header () Chris@70: in Chris@70: app print_line lines; Chris@76: if imperfect then print_problem_summary context lines else (); Chris@70: lines Chris@70: end Chris@70: Chris@70: fun return_code_for outcomes = Chris@70: foldl (fn ((_, result), acc) => Chris@70: case result of Chris@70: ERROR _ => OS.Process.failure Chris@70: | _ => acc) Chris@70: OS.Process.success Chris@70: outcomes Chris@70: Chris@70: fun status_of_project ({ context, libs } : project) = Chris@70: return_code_for (act_and_print (AnyLibControl.status context) Chris@70: print_status_header (print_status false) Chris@76: context libs) Chris@70: Chris@70: fun review_project ({ context, libs } : project) = Chris@70: return_code_for (act_and_print (AnyLibControl.review context) Chris@70: print_status_header (print_status true) Chris@76: context libs) Chris@70: Chris@70: fun lock_project ({ context, libs } : project) = Chris@70: let val _ = if FileBits.verbose () Chris@70: then print ("Scanning IDs for lock file...\n") Chris@70: else () Chris@76: val outcomes = map (fn lib => (lib, AnyLibControl.id_of context lib)) Chris@70: libs Chris@70: val locks = Chris@70: List.concat Chris@76: (map (fn (lib : libspec, result) => Chris@70: case result of Chris@70: ERROR _ => [] Chris@76: | OK id => [{ libname = #libname lib, Chris@76: id_or_tag = id }]) Chris@70: outcomes) Chris@70: val return_code = return_code_for outcomes Chris@70: val _ = print clear_line Chris@70: in Chris@70: if OS.Process.isSuccess return_code Chris@70: then save_lock_file (#rootpath context) locks Chris@70: else (); Chris@70: return_code Chris@70: end Chris@70: Chris@70: fun update_project (project as { context, libs }) = Chris@70: let val outcomes = act_and_print Chris@70: (AnyLibControl.update context) Chris@76: print_outcome_header print_update_outcome Chris@76: context libs Chris@70: val _ = if List.exists (fn (_, OK _) => true | _ => false) outcomes Chris@70: then lock_project project Chris@70: else OS.Process.success Chris@70: in Chris@70: return_code_for outcomes Chris@70: end Chris@70: Chris@70: fun load_local_project pintype = Chris@70: let val userconfig = load_userconfig () Chris@70: val rootpath = OS.FileSys.getDir () Chris@70: in Chris@70: load_project userconfig rootpath pintype Chris@70: end Chris@70: Chris@70: fun with_local_project pintype f = Chris@76: let open OS.Process Chris@76: val return_code = Chris@76: f (load_local_project pintype) Chris@76: handle Fail msg => Chris@76: failure before print ("Error: " ^ msg) Chris@76: | JsonBits.Config msg => Chris@76: failure before print ("Error in configuration: " ^ msg) Chris@76: | e => Chris@76: failure before print ("Error: " ^ exnMessage e) Chris@70: val _ = print "\n"; Chris@70: in Chris@70: return_code Chris@70: end Chris@70: Chris@70: fun review () = with_local_project USE_LOCKFILE review_project Chris@70: fun status () = with_local_project USE_LOCKFILE status_of_project Chris@70: fun update () = with_local_project NO_LOCKFILE update_project Chris@70: fun lock () = with_local_project NO_LOCKFILE lock_project Chris@70: fun install () = with_local_project USE_LOCKFILE update_project Chris@70: Chris@70: fun version () = Chris@76: (print ("v" ^ repoint_version ^ "\n"); Chris@70: OS.Process.success) Chris@70: Chris@70: fun usage () = Chris@76: (print "\nRepoint "; Chris@70: version (); Chris@70: print ("\nA simple manager for third-party source code dependencies.\n\n" Chris@70: ^ "Usage:\n\n" Chris@76: ^ " repoint \n\n" Chris@70: ^ "where is one of:\n\n" Chris@70: ^ " status print quick report on local status only, without using network\n" Chris@70: ^ " review check configured libraries against their providers, and report\n" Chris@70: ^ " install update configured libraries according to project specs and lock file\n" Chris@70: ^ " update update configured libraries and lock file according to project specs\n" Chris@70: ^ " lock update lock file to match local library status\n" Chris@70: ^ " archive pack up project and all libraries into an archive file\n" Chris@76: ^ " (invoke as 'repoint archive target-file.tar.gz')\n" Chris@76: ^ " version print the Repoint version number and exit\n\n"); Chris@70: OS.Process.failure) Chris@70: Chris@70: fun archive target args = Chris@70: case args of Chris@70: [] => Chris@70: with_local_project USE_LOCKFILE (Archive.archive (target, [])) Chris@70: | "--exclude"::xs => Chris@70: with_local_project USE_LOCKFILE (Archive.archive (target, xs)) Chris@70: | _ => usage () Chris@70: Chris@76: fun repoint args = Chris@70: let val return_code = Chris@70: case args of Chris@70: ["review"] => review () Chris@70: | ["status"] => status () Chris@70: | ["install"] => install () Chris@70: | ["update"] => update () Chris@70: | ["lock"] => lock () Chris@70: | ["version"] => version () Chris@70: | "archive"::target::args => archive target args Chris@76: | arg::_ => (print ("Error: unknown argument \"" ^ arg ^ "\"\n"); Chris@76: usage ()) Chris@70: | _ => usage () Chris@70: in Chris@70: OS.Process.exit return_code; Chris@70: () Chris@70: end Chris@70: Chris@70: fun main () = Chris@76: repoint (CommandLine.arguments ())