#!/bin/bash
#
# usage: cut-release [-n] version-designation [make-args...]
#

function isthatright {
  echo -n "Does that look right? [y/n] "
  while read yn; do
    if [ "$yn" = y -o "$yn" = Y -o "$yn" = yes -o "$yn" = YES -o "$yn" = Yes ]; then
      break
    elif [ "$yn" = n -o "$yn" = N -o "$yn" = no -o "$yn" = NO -o "$yn" = No ]; then
      echo "Aborting as per user request." >&2
      exit 1
    else
      echo -n "[y/n] "
    fi
  done
}

if [ "$1" = -n ]; then
  dryrun=true
  shift
else
  dryrun=false
fi

if [ $# -lt 1 ]; then
  echo "Usage: $(basename "$0") [-n] version-designation [make-args...]" >&2
  echo "-n does a dry run (i.e., do sanity checks and build but don't touch the repository)"
  exit 1
fi

if ! [ -e src/expr/node.h -a -e .svn ]; then
  echo "$(basename "$0"): ERROR: you should run this from the top-level of a CVC4 subversion working directory" >&2
  exit 1
fi

version="$1"
shift

if echo "$version" | grep '[^a-zA-Z0-9_.+(){}^%#-]' &>/dev/null; then
  echo "$(basename "$0"): ERROR: version designation \`$version' contains illegal characters" >&2
  exit 1
fi

vs=($(echo "$version" | sed 's,^\([0-9]*\)\.\([0-9]*\)\(\.\([0-9]*\)\)\?\(.*\),\1 \2 \4 \5,'))
major=${vs[0]}
minor=${vs[1]}
release=${vs[2]-0}
extra=${vs[3]}
echo
echo "Major  : $major"
echo "Minor  : $minor"
echo "Release: $release"
echo "Extra  : $extra"
echo
version="$major.$minor"
if [ "$release" != 0 ]; then
  version="$version.$release"
fi
version="$version$extra"
echo "Version: $version"
echo
isthatright

if ! svn ls "https://subversive.cims.nyu.edu/cvc4/cvc4/tags/releases/$version" 2>&1 >/dev/null | grep non-existent >/dev/null; then
  echo "$(basename "$0"): ERROR: subversion repo already contains a release \`$version'" >&2
  $dryrun || exit 1
fi

if $dryrun; then
  if [ -n "$(svn status -q configure.ac)" ]; then
    echo "$(basename "$0"): ERROR: in dry-run mode, cannot operate properly with local modifications to \"configure.ac\", sorry" >&2
    exit 1
  fi
elif [ -n "$(svn status -q)" ]; then
  echo "$(basename "$0"): ERROR: \"svn status\" indicates there are local modifications; please commit first" >&2
  exit 1
fi

root="$(svn info | grep "^Repository Root: https://subversive.cims.nyu.edu/.*" | cut -f3 -d' ')"
if [ -z "$root" ]; then
  echo "$(basename "$0"): ERROR: can't get repository root URL" 2>&1
  $dryrun || exit 1
fi

if [ `svn -uq status | wc -l` -ne 1 ]; then
  echo "$(basename "$0"): ERROR: this working directory isn't up to date" 2>&1
  $dryrun || exit 1
fi

if ! grep '^m4_define(_CVC4_MAJOR,  *[0-9][0-9]* *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_MINOR,  *[0-9][0-9]* *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_RELEASE,  *[0-9][0-9]* *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_EXTRAVERSION,  *\[.*\] *)' configure.ac &>/dev/null; then
  echo "$(basename "$0"): ERROR: cannot locate the version info lines of configure.ac" >&2
  $dryrun || exit 1
fi
perl -pi -e 's/^m4_define\(_CVC4_MAJOR, ( *)[0-9]+( *)\)/m4_define(_CVC4_MAJOR, ${1}'"$major"'$2)/;
             s/^m4_define\(_CVC4_MINOR, ( *)[0-9]+( *)\)/m4_define(_CVC4_MINOR, ${1}'"$minor"'$2)/;
             s/^m4_define\(_CVC4_RELEASE, ( *)[0-9]+( *)\)/m4_define(_CVC4_RELEASE, ${1}'"$release"'$2)/;
             s/^m4_define\(_CVC4_EXTRAVERSION, ( *)\[.*\]( *)\)/m4_define(_CVC4_EXTRAVERSION, $1\['"$extra"'\]$2)/' configure.ac

trap 'echo; echo; echo "Aborting in error."; svn revert configure.ac; echo' EXIT

echo
echo 'Made the following change to configure.ac:'
echo
svn diff configure.ac
echo
isthatright

if ! grep '^m4_define(_CVC4_MAJOR,  *'"$major"' *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_MINOR,  *'"$minor"' *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_RELEASE,  *'"$release"' *)' configure.ac &>/dev/null ||
   ! grep '^m4_define(_CVC4_EXTRAVERSION,  *\['"$extra"'\] *)' configure.ac &>/dev/null; then
  echo "$(basename "$0"): INTERNAL ERROR: cannot find the modified version info lines in configure.ac, bailing..." >&2
  exit 1
fi
if [ -z "$(svn status -q configure.ac)" ]; then
  echo "$(basename "$0"): INTERNAL ERROR: \"svn status\" indicates there are no local modifications to configure.ac; I expected the ones I just made!" >&2
  exit 1
fi

if ! $SHELL -c '\
	version="'$version'"; \
	set -ex; \
	./autogen.sh; \
	mkdir "release-$version"; \
	cd "release-$version"; \
	../configure production-cln-staticbinary --disable-shared --enable-unit-testing --with-cudd --with-readline; \
	make dist "$@"; \
	tar xf "cvc4-$version.tar.gz"; \
	cd "cvc4-$version"; \
	./configure production-cln-staticbinary --disable-shared --enable-unit-testing --with-cudd --with-readline; \
	make check "$@"; \
	make distcheck "$@"; \
'; then
  exit 1
fi

if ! [ -e release-$version/cvc4-$version.tar.gz ]; then
  echo "$(basename "$0"): INTERNAL ERROR: cannot find the distribution tarball I just built" >&2
  exit 1
fi
if ! [ -e release-$version/src/main/cvc4 ]; then
  echo "$(basename "$0"): INTERNAL ERROR: cannot find the binary I just built" >&2
  exit 1
fi

echo
echo 'This release of CVC4 will identify itself as:'
echo
release-$version/src/main/cvc4 --version
echo
isthatright

echo
echo 'This binary release of CVC4 will identify itself as being configured like this:'
echo
release-$version/src/main/cvc4 --show-config
echo
isthatright

echo
echo "Signing tarball..."
cp -p "release-$version/cvc4-$version.tar.gz" .
gpg -b --armor "cvc4-$version.tar.gz"

echo
echo "Signing binary..."
cp -p "release-$version/src/main/cvc4" "cvc4-$version"
gpg -b --armor "cvc4-$version"

echo
echo "About to run: svn commit -m \"Cutting release $version.\""
isthatright
$dryrun || svn commit -m "Cutting release $version."

echo
echo "About to run: svn copy -m \"Cutting release $version.\" \"$root\" \"https://subversive.cims.nyu.edu/cvc4/cvc4/tags/releases/$version\""
isthatright
$dryrun || svn copy -m "Cutting release $version." "$root" "https://subversive.cims.nyu.edu/cvc4/cvc4/tags/releases/$version"

trap '' EXIT