Chris@79: <#
Chris@79: 
Chris@79: .SYNOPSIS
Chris@79: A simple manager for third-party source code dependencies.
Chris@79: Run "repoint help" for more documentation.
Chris@79: 
Chris@79: #>
Chris@79: 
Chris@79: Set-StrictMode -Version 2.0
Chris@79: $ErrorActionPreference = "Stop"
Chris@79: $env:HGPLAIN = "true"
Chris@79: 
Chris@79: $sml = $env:REPOINT_SML
Chris@79: 
Chris@79: $mydir = Split-Path $MyInvocation.MyCommand.Path -Parent
Chris@79: $program = "$mydir/repoint.sml"
Chris@79: 
Chris@79: # We need either Poly/ML or SML/NJ. No great preference as to which.
Chris@79: 
Chris@79: # Typical locations
Chris@79: $env:PATH = "$env:PATH;C:\Program Files (x86)\SMLNJ\bin;C:\Program Files\Poly ML;C:\Program Files (x86)\Poly ML"
Chris@79: 
Chris@79: if (!$sml) {
Chris@79:     if (Get-Command "sml" -ErrorAction SilentlyContinue) {
Chris@79:        $sml = "smlnj"
Chris@79:     } elseif (Get-Command "polyml" -ErrorAction SilentlyContinue) {
Chris@79:        $sml = "poly"
Chris@79:     } else {
Chris@79:        echo @"
Chris@79: 
Chris@79: ERROR: No supported SML compiler or interpreter found       
Chris@79: 
Chris@79:   The Repoint external source code manager needs a Standard ML (SML)
Chris@79:   compiler or interpreter to run.
Chris@79: 
Chris@79:   Please ensure you have one of the following SML implementations
Chris@79:   installed and present in your PATH, and try again.
Chris@79: 
Chris@79:     1. Standard ML of New Jersey
Chris@79:        - executable name: sml
Chris@79: 
Chris@79:     2. Poly/ML
Chris@79:        - executable name: polyml
Chris@79: 
Chris@79: "@
Chris@79:        exit 1
Chris@79:     }
Chris@79: }
Chris@79: 
Chris@79: if ($args -match "'""") {
Chris@79:     $arglist = '["usage"]'
Chris@79: } else {
Chris@79:     $arglist = '["' + ($args -join '","') + '"]'
Chris@79: }
Chris@79: 
Chris@79: if ($sml -eq "poly") {
Chris@79: 
Chris@79:     $program = $program -replace "\\","\\\\"
Chris@79:     echo "use ""$program""; repoint $arglist" | polyml -q --error-exit | Out-Host
Chris@79: 
Chris@79:     if (-not $?) {
Chris@79:         exit $LastExitCode
Chris@79:     }
Chris@79: 
Chris@79: } elseif ($sml -eq "smlnj") {
Chris@79: 
Chris@79:     $lines = @(Get-Content $program)
Chris@79:     $lines = $lines -notmatch "val _ = main ()"
Chris@79: 
Chris@79:     $intro = @"
Chris@79: val smlrun__cp = 
Chris@79:     let val x = !Control.Print.out in
Chris@79:         Control.Print.out := { say = fn _ => (), flush = fn () => () };
Chris@79:         x
Chris@79:     end;
Chris@79: val smlrun__prev = ref "";
Chris@79: Control.Print.out := { 
Chris@79:     say = fn s => 
Chris@79:         (if String.isSubstring "Error" s orelse String.isSubstring "Fail" s
Chris@79:          then (Control.Print.out := smlrun__cp;
Chris@79:                (#say smlrun__cp) (!smlrun__prev);
Chris@79:                (#say smlrun__cp) s)
Chris@79:          else (smlrun__prev := s; ())),
Chris@79:     flush = fn s => ()
Chris@79: };
Chris@79: "@ -split "[\r\n]+"
Chris@79: 
Chris@79:     $outro = @"
Chris@79: val _ = repoint $arglist;
Chris@79: val _ = OS.Process.exit (OS.Process.success);
Chris@79: "@ -split "[\r\n]+"
Chris@79: 
Chris@79:     $script = @()
Chris@79:     $script += $intro
Chris@79:     $script += $lines
Chris@79:     $script += $outro
Chris@79: 
Chris@79:     $tmpfile = ([System.IO.Path]::GetTempFileName()) -replace "[.]tmp",".sml"
Chris@79: 
Chris@79:     $script | Out-File -Encoding "ASCII" $tmpfile
Chris@79: 
Chris@79:     $env:CM_VERBOSE="false"
Chris@79: 
Chris@79:     sml $tmpfile
Chris@79: 
Chris@79:     if (-not $?) {
Chris@79:         del $tmpfile
Chris@79:         exit $LastExitCode
Chris@79:     }
Chris@79: 
Chris@79:     del $tmpfile
Chris@79: 
Chris@79: } else {
Chris@79: 
Chris@79:     "Unknown SML implementation name: $sml"
Chris@79:     exit 2
Chris@79: }