#!/bin/bash

# Copyright 2008, 2009, 2010, 2017, 2018, 2023  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=mercurial
VERSION=${VERSION:-$(echo mercurial-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-2}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-mercurial

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf mercurial-$VERSION
tar xvf $CWD/mercurial-$VERSION.tar.?z || exit 1
cd mercurial-$VERSION || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

python3 setup.py build install --root=$PKG || exit 1

# Ordinarily we will not add stuff that's not installed through the normal
# default installation method, but we've had a lot of requests, and it appears
# that installing at least the hgk extension is the ad-hoc standard.
mkdir -p $PKG/usr/libexec/mercurial
cp -a contrib/hgk $PKG/usr/libexec/mercurial
chmod 0755 $PKG/usr/libexec/mercurial/hgk

mkdir -p $PKG/etc/mercurial/hgrc.d
cat << EOF > $PKG/etc/mercurial/hgrc.d/hgk.rc.new
[extensions]
# enable hgk extension ('hg help' shows 'view' as a command)
hgk =
[hgk]

path=/usr/libexec/mercurial/hgk
EOF

# Bash and zsh completion:
mkdir -p $PKG/usr/share/bash-completion/completions/
cp -a contrib/bash_completion $PKG/usr/share/bash-completion/completions/hg
chmod 644 $PKG/usr/share/bash-completion/completions/hg
mkdir -p $PKG/usr/share/zsh/site-functions
cp -a contrib/zsh_completion $PKG/usr/share/zsh/site-functions/_mercurial
chmod 644 $PKG/usr/share/zsh/site-functions/_mercurial

# Emacs Lisp extensions:
mkdir -p $PKG/usr/share/emacs/site-lisp
cp -a contrib/mercurial.el contrib/mq.el $PKG/usr/share/emacs/site-lisp
chmod 644 $PKG/usr/share/emacs/site-lisp/*

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

( cd doc
  for dir in 1 5 ; do
    mkdir -p $PKG/usr/man/man${dir}
    for file in *.${dir} ; do
      cat $file | gzip -9c > $PKG/usr/man/man${dir}/${file}.gz
    done
  done
)

mkdir -p $PKG/usr/doc/mercurial-$VERSION
cp -a \
  CONTRIBUTORS* COPYING* PKG-INFO README* \
  $PKG/usr/doc/mercurial-$VERSION

mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/mercurial-$VERSION-$ARCH-$BUILD.txz