c@219: <#
c@219: 
c@219: .SYNOPSIS
c@219: A simple manager for third-party source code dependencies.
c@219: Run "repoint help" for more documentation.
c@219: 
c@219: #>
c@219: 
c@219: Set-StrictMode -Version 2.0
c@219: $ErrorActionPreference = "Stop"
c@219: $env:HGPLAIN = "true"
c@219: 
c@219: $sml = $env:REPOINT_SML
c@219: 
c@219: $mydir = Split-Path $MyInvocation.MyCommand.Path -Parent
c@219: $program = "$mydir/repoint.sml"
c@219: 
c@219: # We need either Poly/ML or SML/NJ. No great preference as to which.
c@219: 
c@219: # Typical locations
c@219: $env:PATH = "$env:PATH;C:\Program Files (x86)\SMLNJ\bin;C:\Program Files\Poly ML;C:\Program Files (x86)\Poly ML"
c@219: 
c@219: if (!$sml) {
c@219:     if (Get-Command "sml" -ErrorAction SilentlyContinue) {
c@219:        $sml = "smlnj"
c@219:     } elseif (Get-Command "polyml" -ErrorAction SilentlyContinue) {
c@219:        $sml = "poly"
c@219:     } else {
c@219:        echo @"
c@219: 
c@219: ERROR: No supported SML compiler or interpreter found       
c@219: 
c@219:   The Repoint external source code manager needs a Standard ML (SML)
c@219:   compiler or interpreter to run.
c@219: 
c@219:   Please ensure you have one of the following SML implementations
c@219:   installed and present in your PATH, and try again.
c@219: 
c@219:     1. Standard ML of New Jersey
c@219:        - executable name: sml
c@219: 
c@219:     2. Poly/ML
c@219:        - executable name: polyml
c@219: 
c@219: "@
c@219:        exit 1
c@219:     }
c@219: }
c@219: 
c@219: if ($args -match "'""") {
c@219:     $arglist = '["usage"]'
c@219: } else {
c@219:     $arglist = '["' + ($args -join '","') + '"]'
c@219: }
c@219: 
c@219: if ($sml -eq "poly") {
c@219: 
c@219:     $program = $program -replace "\\","\\\\"
c@219:     echo "use ""$program""; repoint $arglist" | polyml -q --error-exit | Out-Host
c@219: 
c@219:     if (-not $?) {
c@219:         exit $LastExitCode
c@219:     }
c@219: 
c@219: } elseif ($sml -eq "smlnj") {
c@219: 
c@219:     $lines = @(Get-Content $program)
c@219:     $lines = $lines -notmatch "val _ = main ()"
c@219: 
c@219:     $intro = @"
c@219: val smlrun__cp = 
c@219:     let val x = !Control.Print.out in
c@219:         Control.Print.out := { say = fn _ => (), flush = fn () => () };
c@219:         x
c@219:     end;
c@219: val smlrun__prev = ref "";
c@219: Control.Print.out := { 
c@219:     say = fn s => 
c@219:         (if String.isSubstring "Error" s orelse String.isSubstring "Fail" s
c@219:          then (Control.Print.out := smlrun__cp;
c@219:                (#say smlrun__cp) (!smlrun__prev);
c@219:                (#say smlrun__cp) s)
c@219:          else (smlrun__prev := s; ())),
c@219:     flush = fn s => ()
c@219: };
c@219: "@ -split "[\r\n]+"
c@219: 
c@219:     $outro = @"
c@219: val _ = repoint $arglist;
c@219: val _ = OS.Process.exit (OS.Process.success);
c@219: "@ -split "[\r\n]+"
c@219: 
c@219:     $script = @()
c@219:     $script += $intro
c@219:     $script += $lines
c@219:     $script += $outro
c@219: 
c@219:     $tmpfile = ([System.IO.Path]::GetTempFileName()) -replace "[.]tmp",".sml"
c@219: 
c@219:     $script | Out-File -Encoding "ASCII" $tmpfile
c@219: 
c@219:     $env:CM_VERBOSE="false"
c@219: 
c@219:     sml $tmpfile
c@219: 
c@219:     if (-not $?) {
c@219:         del $tmpfile
c@219:         exit $LastExitCode
c@219:     }
c@219: 
c@219:     del $tmpfile
c@219: 
c@219: } else {
c@219: 
c@219:     "Unknown SML implementation name: $sml"
c@219:     exit 2
c@219: }