#!/bin/bash
ulimit -s unlimited
shopt -s extglob

# mercurial.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <mozes@slackware.com>
#
# Copyright 2008-2025  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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-$VERSION || failextract
slackhousekeeping

# Install into package:
unshare -n python3 -m build --wheel --no-isolation || failmake
python3 -m installer --destdir "$PKG" dist/*.whl || failinstall

# 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/*

( cd doc
  for dir in 1 5 ; do
    mkdir -p $PKG/usr/man/man${dir}
    for file in *.${dir} ; do
      install -m644 $file $PKG/usr/man/man${dir}
    done
  done )

# Copy docs:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -fav \
   CONTRIBUTORS* COPYING* PKG-INFO README* \
   $PKG/usr/doc/$PKGNAM-$VERSION

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
#slackstriprpaths     # strip rpaths
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links