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#! /usr/bin/env bash

# file      : build/meta/vcsln
# author    : Boris Kolpackov <boris@codesynthesis.com>
# copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
# license   : GNU GPL v2; see accompanying LICENSE file

# Process VC++ solution templates.
#
# Options:
#
# -b <base-dir>
# -o <output-file>
# -e <project-ext>
#
# Arguments:
#
# <template-file>
#
trap 'exit 1' ERR

function error ()
{
  echo "$*" 1>&2
}

base=
output=
projext=

while [ $# -gt 0 ]; do
  case $1 in
    -b)
      base=$2
      shift 2
      ;;
    -o)
      output=$2
      shift 2
      ;;
    -e)
      projext=$2
      shift 2
      ;;
    *)
      break
      ;;
  esac
done

input=$1

if [ "$input" = "" ]; then
  error "no input file"
  exit 1
fi

if [ "$base" = "" ]; then
  error "no base directory"
  exit 1
fi

if [ "$output" = "" ]; then
  error "no output file"
  exit 1
fi

if [ "$projext" = "" ]; then
  error "no VC++ project file extension"
  exit 1
fi

m4=m4
u2d=unix2dos

# Assume this script is never found via PATH.
#
meta=`dirname $0`

build="$meta/.."
install=$build/install/install

# Find all the solution files.
#
proj_files=`find $base -name '*'$projext`
proj_names=`echo "$proj_files" | sed -e "s%^$base/\(.*\)/.*$%\1%"`

# Determine available configurations and project uuids.
#
for f in $proj_files; do

  if [ "$conf" = "" ]; then
    if [ "$projext" = ".vcproj" ]; then
      conf=`cat $f | dos2unix | sed -n -e \
        '/^[ 	]*<Configuration$/{n;s/[ 	]*Name="\([^"]*\)"$/"\1",/p};d' -`
      conf=`echo $conf | sed -e 's/,$//'`
    else
      conf=`cat $f | dos2unix | sed -n -e \
        's/^[ 	]*<ProjectConfiguration Include="\([^"]*\)">$/"\1",/p;d' -`
      conf=`echo $conf | sed -e 's/,$//'`
    fi
  fi

  if [ "$projext" = ".vcproj" ]; then
    uuid=`cat $f | dos2unix | sed -n -e \
      's/^[ 	]*ProjectGUID="{\([^}]*\)}"$/\1/p;d'`
  else
    uuid=`cat $f | dos2unix | sed -n -e \
      's/^[ 	]*<ProjectGuid>{\([^}]*\)}<\/ProjectGuid>$/\1/p;d'`
  fi

  if [ "$proj_uuids" = "" ]; then
    proj_uuids=$uuid
  else
    proj_uuids="$proj_uuids $uuid"
  fi
done

proj_files=`echo "$proj_files" | sed -e "s%^$base/%%"`

#echo $proj_names
#echo $proj_uuids

export configurations=$conf
export project_files=$proj_files
export project_names=$proj_names
export project_uuids=$proj_uuids

# Make sure the output directory exist.
#
$install -d -m 755 `dirname $output`

$m4 -P -D__meta_base__=$meta $meta/vcsln.m4 $input >$output
$u2d $output
chmod 644 $output