#!/bin/bash
# Some variables
BASEURL="https://svn.freepascal.org/svn/projects/pas2js/"

function info {
  if [ -z "$QUIET" ]; then
    echo "Info: $*"
  fi
}

function header {
  if [ -z "$QUIET" ]; then
    echo ""
    echo "Info: $*"
    echo "---"
    echo "" 
  fi
}

function usage {
  echo "usage $0 [options] [FPC [SVN]]"
  echo '-c compiler        set compiler to use'
  echo '-d directory       set base directory for checkout'
  echo '-h help            this help message'
  echo '-o OPTS            extra compiler options'
  echo "-q                 be more quiet"
  echo '-s name            build snapshot with name'
  echp '-nd                skip demo test compilation'
  echo '-z URL             set url for checkout. Can be relative to pas2js repo' 
}

function doCompile {
  info "Compiler command line: $*"
  $FPC $*
}
function doStrip {
  info "Stripping binary: $*"
  strip $*
}
set -e
while test $# != 0 
do
  f=$1
  case $f in
    '-c') shift
          FPC="$1";;
    '-d') shift
          DIR="$1";;
    '-z') shift
          SVN="$1";;
    '-o') shift
          EXTRAOPTS="$1";;
    '-q') QUIET=1;;      
    '-s') shift
          SNAPSHOT="$1";;
    '-nd') SKIPDEMO=1;;      
    '-h') usage
          exit;; 
    *) 
      if [ -z "$FPC" ]; then
        FPC=$1
      else 
        if [ -z "$SVN" ]; then
          SVN=$1
        else
          usage 
        fi
      fi
  esac
  shift
done
#
# Collect some info , set defaults
#
if [ -z "$FPC" ]; then
  FPC=fpc
fi
if [ -z "$SVN" ]; then
  SVN=${BASEURL}trunk
else 
  PROT=$(echo $SVN |  sed -n '/.*:\/\//p')
  if [ -z "$PROT" ]; then
    SVN="${BASEURL}${SVN}"
  fi
fi
if [ -z "$DIR" ]; then
  DIR=$TMP
  if [ -z "$DIR" ]; then
    DIR=$TEMP
  fi
  if [ -z "$DIR" ]; then  
    DIR=~/tmp
  fi
fi
FPCVER=$($FPC -iV)
FPCVER30=$(echo $FPCVER | (grep '3.0' || echo))
FPCCPU=$($FPC -iTP)
case "$OSTYPE" in
  linux*)
    SNAPSHOTOS=linux
    LIBEXT=so
    ;;
  darwin*)
    SNAPSHOTOS=macos
    LIBEXT=dylib
    ;; 
  *) SNAPSHOTOS=unknown
    LIBEXT=dll
    ;;
esac    
#
# Get started
#
info "SVN URL: $SVN"
info "Compiler version: $FPCVER"
info "Base directory: $DIR"
info "Snaphot: $SNAPSHOT"
info ""
#
# Change to base dir
#
info Changing directory to base dir $DIR
mkdir -p $DIR
cd $DIR
if [ -d daily ]; then
  info Removing previous dir
  rm -rf daily
fi
#
# Export sources
#
info "Exporting SVN $SVN to $DIR/daily"
svn export -q $SVN daily
BUILDDIR="$DIR/daily"
PKGDIR="$BUILDDIR/compiler/packages"
UNITPATH="$PKGDIR/fcl-js/src/;$PKGDIR/fcl-json/src/;$PKGDIR/fcl-passrc/src/;$PKGDIR/pastojs/src/"
if [ ! -z "$FPCVER30" ]; then
  UNITPATH="${UNITPATH};$PKGDIR/compat"
fi
OPTS="-FU. -B -O1 -Schi -v0 -ve $EXTRAOPT"
if [ "$FPCCPU" = "x86_64" ]; then
  LIBOPT="-fPIC"
fi
COMPDIR=$BUILDDIR/compiler/utils/pas2js
#
# Output dir is basis for zip
#
OUTDIR=$BUILDDIR/output
INSTALLDIR=$OUTDIR
if [ ! -z "$SNAPSHOT" ]; then
  SNAPSHOTDIR="pas2js-snapshot-$SNAPSHOTOS-$FPCCPU"
  INSTALLDIR="$OUTDIR/$SNAPSHOTDIR"
fi
if [ -d "$INSTALLDIR" ]; then
  info "Output dir $INSTALLDIR exists. Cleaning up"
  rm -rf "$INSTALLDIR"/*
else
  info "Creating output dir $INSTALLDIR"
  mkdir -p "$INSTALLDIR"
fi
#
# Binaries are put here
#
BINDIR=$INSTALLDIR/bin/
if [ -d "$BINDIR" ]; then
  info Removing previous binaries from "$BINDIR"
  rm -rf "$BINDIR"/*
else
  info Creating output dir "$BINDIR"
  mkdir -p "$BINDIR"
fi

# pas2js
header Build pas2js in $COMPDIR
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS -FE$BINDIR pas2js.pp
doStrip $BINDIR/pas2js

# libpas2js
header Build libpas2js in $COMPDIR
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS $LIBOPT -FE$BINDIR pas2jslib.pp
if [ "$OSTYPE" ne "darwin" ]; then
  doStrip $BINDIR/libpas2jslib.$LIBEXT
fi

# compileserver
if [ ! -z "$FPCVER30" ]; then
  header Version 3.0.x detected: Skipping compileserver build.
else
  header Build compileserver in $COMPDIR
  cd "$COMPDIR"
  doCompile -Fu"$UNITPATH" $OPTS -FE$BINDIR compileserver.pp
  doStrip $BINDIR/compileserver
fi

# webidl
header Build webidl2pas in $COMPDIR
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS -FE$BINDIR -Fu$PKGDIR/webidl/src webidl2pas.pp
doStrip $BINDIR/webidl2pas
# all done
header Compiled binaries:
ls -l $BINDIR

#
# Copy files for snapZip snapshot
#
if [ ! -z "$SNAPSHOT" ]; then
  header Copying packages and demos for snapshot
  cp -rp $BUILDDIR/demo $INSTALLDIR/demo
  cp -rp $BUILDDIR/packages $INSTALLDIR/packages
fi
#
# Test demos
#
if [ -z "$SKIPDEMO" ]; then
  header Build demos in $snvdir/demo without webcompiler
  cd "$BUILDDIR/demo"
  make SKIPWEBCOMPILER=1  P2JS=$BINDIR/pas2js

  header Build webcompiler in demos dir
  cd "$BUILDDIR/demo"
  make demowebcompiler P2JS=$BINDIR/pas2js
fi

if [ -z "$SNAPSHOT" ]; then
  header That\'s all folks!
  exit;
fi

header Building snapshot
cd $BINDIR
info Creating config file
cat > pas2js.cfg << EOC
# Logo and options
-l
-vwnh
# If you don't want so much verbosity use
#-vw

# Allow C-operators
-Sc

-Fu\$CfgDir/../packages/*

#IFDEF nodejs
-Jirtl.js
#ENDIF
EOC
cd $OUTDIR
BASENAME=pas2js-snapshot
SUFFIX=$SNAPSHOT-$SNAPSHOTOS-$FPCCPU
ZIPFILE=$BUILDDIR/$BASENAME-$SUFFIX.zip
TSFILE=$BUILDDIR/$BASENAME-$SUFFIX-date.txt
MDFILE=$BUILDDIR/$BASENAME-$SUFFIX.md5
info Creating zip file $ZIPFILE
zip -qr $ZIPFILE $SNAPSHOTDIR
cd $BUILDDIR
md5sum -b $ZIPFILE > $MDFILE
date > $TSFILE
info "Zip file:       " $ZIPFILE
info "Timestamp file: " $TSFILE
info "Checksum file:  " $MDFILE