#!/bin/bash
#  Copyright (C) 2010  Matías A. Fonzo, <selk@dragora.org>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

CWD=$(pwd)

TMP=${TMP:-/tmp/sources}
OUT=${OUT:-/tmp/packages}

V=1.7.2
ARCH=${ARCH:-x86_64}
B=1

# Flags for the compiler:
DCFLAGS=${DCFLAGS:=-O2 -mtune=generic}

# Parallel jobs for the compiler:
JOBS=${JOBS:=-j4}

PKG=${TMP}/package-mercurial

rm -rf $PKG
mkdir -p $PKG $OUT

echo "Uncompressing the tarball..."
rm -rf ${TMP}/mercurial-${V}
lzip -cd ${CWD}/mercurial-${V}.tar.lz | tar -xvf - -C $TMP

cd ${TMP}/mercurial-${V}

# Set sane ownerships and permissions:
chown -R 0:0 .
find . \
 \( -perm 2777 -o \
    -perm 777  -o \
    -perm 775  -o \
    -perm 711  -o \
    -perm 555  -o \
    -perm 511     \
 \) -exec chmod 755 {} + \
  -o \
 \( -perm 666 -o \
    -perm 664 -o \
    -perm 600 -o \
    -perm 444 -o \
    -perm 440 -o \
    -perm 400    \
 \) -exec chmod 644 {} +

export CFLAGS="$DCFLAGS"

python setup.py build
python setup.py install --root=$PKG

# Add scripts from contrib directory:
install -m 755 -D contrib/hg-ssh ${PKG}/usr/bin/hg-ssh

install -m 755 -D contrib/bash_completion \
 ${PKG}/etc/bash_completion.d/hg

# Add extensions for vim and emacs:
install -m 644 -D contrib/vim/HGAnnotate.vim \
 ${PKG}/usr/share/vim/syntax/vim/HGAnnotate.vim

install -d ${PKG}/usr/share/emacs/site-lisp
cp -a contrib/*.el ${PKG}/usr/share/emacs/site-lisp

# Include the Forest Extension for Mercurial.
#
# INSTRUCTIONS to get the latest release of Forest:
#
# hg clone http://bitbucket.org/pmezard/hgforest-crew
#
( cd ${PKG}/usr/lib/python?.?/site-packages/hgext
 lzip -cd ${CWD}/hgforest-crew.tar.lz | tar -xvf -
)

# Strip binaries & libraries:
( cd $PKG
  find . -type f | xargs file | awk '/ELF/ && /executable/ || /shared object/' | \
   cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

# Add man pages:
mkdir -p ${PKG}/usr/man/man{1,5}
( cd doc
  gzip -9c < hg.1 > ${PKG}/usr/man/man1/hg.1.gz
  gzip -9c < hgignore.5 > ${PKG}/usr/man/man5/hgignore.5.gz
  gzip -9c < hgrc.5 > ${PKG}/usr/man/man5/hgrc.5.gz
)

# Add the documentation:
mkdir -p ${PKG}/usr/doc/mercurial-${V}
cp -a \
 CONTRIBUTORS COPYING README PKG-INFO \
 ${PKG}/usr/doc/mercurial-${V}

# Copy the description files:
mkdir -p ${PKG}/description
cp ${CWD}/description/* ${PKG}/description

cd $PKG
makepkg -l ${OUT}/mercurial-${V}-${ARCH}-${B}.tlz