Chris@14: <#
Chris@14: 
Chris@14: .SYNOPSIS
Chris@14: A simple manager for third-party source code dependencies.
Chris@14: Run "repoint help" for more documentation.
Chris@14: 
Chris@14: #>
Chris@14: 
Chris@14: Set-StrictMode -Version 2.0
Chris@14: $ErrorActionPreference = "Stop"
Chris@14: $env:HGPLAIN = "true"
Chris@14: 
Chris@14: $sml = $env:REPOINT_SML
Chris@14: 
Chris@14: $mydir = Split-Path $MyInvocation.MyCommand.Path -Parent
Chris@14: $program = "$mydir/repoint.sml"
Chris@14: 
Chris@14: # We need either Poly/ML or SML/NJ. No great preference as to which.
Chris@14: 
Chris@14: # Typical locations
Chris@14: $env:PATH = "$env:PATH;C:\Program Files (x86)\SMLNJ\bin;C:\Program Files\Poly ML;C:\Program Files (x86)\Poly ML"
Chris@14: 
Chris@14: if (!$sml) {
Chris@14:     if (Get-Command "sml" -ErrorAction SilentlyContinue) {
Chris@14:        $sml = "smlnj"
Chris@14:     } elseif (Get-Command "polyml" -ErrorAction SilentlyContinue) {
Chris@14:        $sml = "poly"
Chris@14:     } else {
Chris@14:        echo @"
Chris@14: 
Chris@14: ERROR: No supported SML compiler or interpreter found       
Chris@14: 
Chris@14:   The Repoint external source code manager needs a Standard ML (SML)
Chris@14:   compiler or interpreter to run.
Chris@14: 
Chris@14:   Please ensure you have one of the following SML implementations
Chris@14:   installed and present in your PATH, and try again.
Chris@14: 
Chris@14:     1. Standard ML of New Jersey
Chris@14:        - executable name: sml
Chris@14: 
Chris@14:     2. Poly/ML
Chris@14:        - executable name: polyml
Chris@14: 
Chris@14: "@
Chris@14:        exit 1
Chris@14:     }
Chris@14: }
Chris@14: 
Chris@14: if ($args -match "'""") {
Chris@14:     $arglist = '["usage"]'
Chris@14: } else {
Chris@14:     $arglist = '["' + ($args -join '","') + '"]'
Chris@14: }
Chris@14: 
Chris@14: if ($sml -eq "poly") {
Chris@14: 
Chris@14:     $program = $program -replace "\\","\\\\"
Chris@14:     echo "use ""$program""; repoint $arglist" | polyml -q --error-exit | Out-Host
Chris@14: 
Chris@14:     if (-not $?) {
Chris@14:         exit $LastExitCode
Chris@14:     }
Chris@14: 
Chris@14: } elseif ($sml -eq "smlnj") {
Chris@14: 
Chris@14:     $lines = @(Get-Content $program)
Chris@14:     $lines = $lines -notmatch "val _ = main ()"
Chris@14: 
Chris@14:     $intro = @"
Chris@14: val smlrun__cp = 
Chris@14:     let val x = !Control.Print.out in
Chris@14:         Control.Print.out := { say = fn _ => (), flush = fn () => () };
Chris@14:         x
Chris@14:     end;
Chris@14: val smlrun__prev = ref "";
Chris@14: Control.Print.out := { 
Chris@14:     say = fn s => 
Chris@14:         (if String.isSubstring "Error" s orelse String.isSubstring "Fail" s
Chris@14:          then (Control.Print.out := smlrun__cp;
Chris@14:                (#say smlrun__cp) (!smlrun__prev);
Chris@14:                (#say smlrun__cp) s)
Chris@14:          else (smlrun__prev := s; ())),
Chris@14:     flush = fn s => ()
Chris@14: };
Chris@14: "@ -split "[\r\n]+"
Chris@14: 
Chris@14:     $outro = @"
Chris@14: val _ = repoint $arglist;
Chris@14: val _ = OS.Process.exit (OS.Process.success);
Chris@14: "@ -split "[\r\n]+"
Chris@14: 
Chris@14:     $script = @()
Chris@14:     $script += $intro
Chris@14:     $script += $lines
Chris@14:     $script += $outro
Chris@14: 
Chris@14:     $tmpfile = ([System.IO.Path]::GetTempFileName()) -replace "[.]tmp",".sml"
Chris@14: 
Chris@14:     $script | Out-File -Encoding "ASCII" $tmpfile
Chris@14: 
Chris@14:     $env:CM_VERBOSE="false"
Chris@14: 
Chris@14:     sml $tmpfile
Chris@14: 
Chris@14:     if (-not $?) {
Chris@14:         del $tmpfile
Chris@14:         exit $LastExitCode
Chris@14:     }
Chris@14: 
Chris@14:     del $tmpfile
Chris@14: 
Chris@14: } else {
Chris@14: 
Chris@14:     "Unknown SML implementation name: $sml"
Chris@14:     exit 2
Chris@14: }