#! /bin/sh

# This script automates most of the process on making a new release.

set -e

rel=yes
if test x"$1" = x-t ; then
   rel=
   shift
fi

if test x"$rel" = xyes ; then
  cd src
  perl -e 'while (<>) { if (m!(.*)//! && $1 !~ / \* /) {print "$ARGV:$.:// comment in C source\n"; exit 1}} continue { close ARGV if eof }' \
      *.c \
      cavern.h commands.h cmdline.h date.h datain.h debug.h\
      filelist.h filename.h getopt.h hash.h img.c img.h img_hosted.h\
      listpos.h matrix.h message.h namecmp.h netartic.h netbits.h\
      netskel.h network.h osalloc.h osdepend.h ostypes.h out.h readval.h str.h\
      useful.h validate.h whichos.h
  cd ..

  # Check there are no uncommitted changes.
  if git commit -a --dry-run >/dev/null 2>/dev/null ; then
    echo 'There are uncommitted changes - please rectify'
    echo 'If you just want to test, run with option -t'
    exit 1
  fi

  test ! -f Makefile || make distclean
  cp -u /usr/share/misc/config.guess .
  cp -u /usr/share/misc/config.sub .
  mv INSTALL INSTALL.keep
  autoreconf --force -i
  mv INSTALL.keep INSTALL
  ./configure CC=gcc CXX=g++
  # Don't error out on new GCC8 warning for now.
  make CFLAGS='-Werror' CXXFLAGS='-Werror -Wno-error=cast-function-type'
  VALGRIND=valgrind make distcheck VERBOSE=1
else
  make dist
fi

# Perform mingw build on a clean unpacked source tree from the release tarball
# so that (a) we don't need to "make distclean" on the source tree and (b) we
# ensure that any files required to build the mingw version and installer
# package are actually shipped in the source tarball.
tarball=`ls -1t survex-1*.tar.gz|head -n1`
tardir=`basename "$tarball" .tar.gz`
rm -rf "$tardir"
tar xf "$tarball"
cd "$tardir"

test -n "$build_platform" || build_platform=`sh config.guess`
SAVE_PATH=$PATH
for wxc in \
  /usr/i686-w64-mingw32/lib/wx/config/i686-w64-mingw32-msw-unicode-static-3.0 \
  /usr/i586-mingw32msvc/lib/wx/config/i586-mingw32msvc-msw-unicode-static-3.0 \
  "" ; do
  if test -z "$wxc" ; then
    echo "wx-config for mingw not found" >&2
    exit 1
  fi
  if test -x "$wxc" ; then
    CC=`$wxc --cc`
    CXX=`$wxc --cxx`
    break
  fi
done
host=mingw
case $CC in
  *i686-w64-mingw32-gcc)
    # debian mingw package
    host=i686-w64-mingw32
    ;;
  *i586-mingw32msvc-gcc)
    # debian mingw32 package
    host=i586-mingw32msvc
    ;;
  *i386-mingw32msvc-gcc)
    # debian mingw32 package
    host=i386-mingw32msvc
    ;;
esac
PATH=/usr/$host/bin:$PATH

# Passing -Werror to configure causes AC_CHECK_FUNCS to fail, so pass it to
# make instead.
cross_pkg_config_path=`echo "$wxc"|sed 's,/lib/.*,/lib/pkgconfig,'`
PKG_CONFIG_PATH=$cross_pkg_config_path \
PKG_CONFIG_LIBDIR=$cross_pkg_config_path \
  ./configure --host="$host" --build="$build_platform" WX_CONFIG="$wxc" \
      CC="$CC" CXX="$CXX" CXXFLAGS="-g -O2 -fno-strict-aliasing -Werror" \
      LDFLAGS='-s -static'
make CFLAGS='-g -O2 -Werror'
make mingw_iss
PATH=$SAVE_PATH

mv survex-win32-*.exe ..
cd ..

if test x"$rel" = xyes ; then
  rm -rf "$tardir"
else
  exit 0
fi

VERSION=`sed 's/^VERSION *= *//p;d' Makefile`
FILES="survex-$VERSION.tar.gz survex-win32-$VERSION.exe"
echo "SHA256 checksums:"
sha256sum $FILES
echo

for f in $FILES ; do
    gpg --detach-sign --armour "$f"
    FILES="$FILES $f.asc"
done

echo "To tag this release and upload it to the webserver, run:"
echo git tag -s -m"'Survex $VERSION'" "$VERSION"

HOST=thyestes.tartarus.org
echo ssh "$HOST" mkdir /srv/www/survex.com/software/"$VERSION"
echo scp $FILES "$HOST":/srv/www/survex.com/software/"$VERSION"