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#!/bin/bash
ver=20
#-----------------------------------------------------------------------#
#
# customizepkg-patching
# Applies a patch to PKGBUILD before building.
#
# Maintainer: Michael Duell <michael.duell@rub.de>
#
# Old maintainer:
# Daniel Oertwig <Daniel.Oertwig@googlemail.com>
# homepage: http://www.proggen.org
#
# A modification of the original customizepkg from
# <wain@archlinux.fr>
# homepage: http://archlinux.fr
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#-----------------------------------------------------------------------#
#-----------------------------------------------------------------------#
## Some help ...
#-----------------------------------------------------------------------#
print_usage()
{
echo "customizepkg - patching version $ver"
echo
echo "Without any option, this script reads files from the current directory and shows a diff"
echo "between the original and the customized version of the files."
echo "The patch to apply the changes is read from /etc/customizepkg.d/\$pkgname"
echo
echo "usage: customizepkg <option>"
echo
echo "customizepkg --version, -V Shows version"
echo "customizepkg --help, -h Shows this help"
echo "customizepkg --edit, -e Edit files marked for customization"
echo " (add -v to edit with vimdiff)"
echo "customizepkg --patch, -p Review patch (add -m to save)"
echo "customizepkg --modify, -m Apply the saved modifications"
echo "customizepkg --vimdiff, -v Show diff using vimdiff"
echo
echo "To customize a file, use:"
echo "$ cp file file.original"
echo "then edit file."
echo
echo "To add a file, create and edit it, then use:"
echo "$ touch file.original"
echo
echo "To remove a file, use:"
echo "$ mv file file.original"
echo
echo "Written by Daniel Oertwig <Daniel.Oertwig@googlemail.com>"
echo " homepage: http://www.proggen.org"
echo " as a modification of the original customizepkg from"
echo " <wain@archlinux.fr>"
echo " homepage: http://archlinux.fr"
echo
}
print_version()
{
echo "customizepkg - patching version $ver"
}
#-----------------------------------------------------------------------#
## MAIN PROGRAMM
#-----------------------------------------------------------------------#
shopt -s nullglob
VIMDIFF=0
MODIFY=0
PATCH=0
EDIT=0
# Parse commandline options. Modifications are made only
# if the option -m or --modify are given!
while [[ "$#" != "0" ]]; do
case $1 in
-h|--help)
print_usage
exit 0
;;
--version|-V)
print_version
exit 0
;;
-e|--edit)
EDIT=1
;;
-p|--patch)
PATCH=1
;;
-m|--modify)
MODIFY=1
;;
--vimdiff|-v)
VIMDIFF=1
;;
esac
shift
done
# Ensure the PKGBUILD file is there and read it to
# get the pkgname variable!
if [[ ! -r ./PKGBUILD ]]; then
echo "PKGBUILD not found!"
exit 1
fi
source ./PKGBUILD || exit 1
# Perform an action on each pair of original and
# changed files.
for_changes_do() {
for f in ./*.original; do
"$@" "$f" "${f%.original}"
done
}
# Edit customized files, with vimdiff if the VIMDIFF
# option was given, or with the editor specified by
# EDITOR (falling back on vi) otherwise.
if [[ "$EDIT" == "1" ]]; then
if [[ "$VIMDIFF" == "1" ]]; then
edit="vim -d"
else
edit="${EDITOR:-vi}"
fi
for_changes_do $edit
exit 0
fi
# Show a patch with the current modifications.
# If the MODIFY option was given, also write it to the
# configdir.
if [[ "$PATCH" == "1" ]]; then
for_changes_do diff -upN |
if [[ "$MODIFY" == "1" ]]; then
tee "/etc/customizepkg.d/$pkgname"
else
cat
fi
exit 0
fi
# Ensure there is a patch available in the configdir!
if [[ ! -r "/etc/customizepkg.d/$pkgname" ]]; then
echo "No configuration for $pkgname in /etc/customizepkg.d"
exit 1
fi
# Apply the patch. Exit if something goes wrong.
patch -b -z .original -i "/etc/customizepkg.d/$pkgname"
if [[ "$?" -gt "1" ]]; then
echo "Patching failed!"
for f in *.rej; do
echo "$f"
cat "$f"
done
exit 1
fi
# Show the diffs
if [[ "$VIMDIFF" == "1" ]]; then
for_changes_do vim -d
else
for_changes_do diff -upN
fi
# Revert a modification.
# If the original file is empty, it means that
# a new file was created by the patch, so remove it.
revert() {
mv -f "$1" "$2"
[[ -s "$2" ]] || rm "$2"
}
# Only if the MODIFY option was given the
# modified file stays. Otherwise, the original
# file is used.
if [[ "$MODIFY" == "0" ]]; then
for_changes_do revert
rm -f *.rej
fi
# Exit gracefully :)
exit 0
|