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Diffstat (limited to 'contrib/bacman.sh.in')
| -rw-r--r-- | contrib/bacman.sh.in | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/contrib/bacman.sh.in b/contrib/bacman.sh.in new file mode 100644 index 00000000..ffb9d6d3 --- /dev/null +++ b/contrib/bacman.sh.in @@ -0,0 +1,307 @@ +#!/bin/bash +# +# bacman: recreate a package from a running system +# This script rebuilds an already installed package using metadata +# stored into the pacman database and system files +# +# (c) 2008 - locci <carlocci_at_gmail_dot_com> +# +# 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 2 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/>. +# + +shopt -s extglob +shopt -s nullglob + +declare -r myname='bacman' +declare -r myver='@PACKAGE_VERSION@' + +# +# User Friendliness +# +usage() { + echo "This program recreates a package using pacman's db and system files" + echo "Usage: $myname <installed package name>" + echo "Example: $myname kernel26" +} + +version() { + printf "%s %s\n" "$myname" "$myver" + echo 'Copyright (C) 2008 locci <carlocci_at_gmail_dot_com>' +} + +if (( $# != 1 )); then + usage + exit 1 +fi + +if [[ $1 = -@(h|-help) ]]; then + usage + exit 0 +elif [[ $1 = -@(V|-version) ]]; then + version + exit 0 +fi + +# +# Fakeroot support +# +if (( EUID )); then + if [[ -f /usr/bin/fakeroot ]]; then + echo "Entering fakeroot environment" + export INFAKEROOT="1" + /usr/bin/fakeroot -u -- "$0" "$@" + exit $? + else + echo "WARNING: installing fakeroot or running $myname as root is required to" + echo " preserve the ownership permissions of files in some packages" + echo "" + fi +fi + +# +# Setting environmental variables +# +if [[ ! -r @sysconfdir@/pacman.conf ]]; then + echo "ERROR: unable to read @sysconfdir@/pacman.conf" + exit 1 +fi + +eval $(awk '/DBPath/ {print $1$2$3}' @sysconfdir@/pacman.conf) +pac_db="${DBPath:-@localstatedir@/lib/pacman/}/local" + +if [[ ! -r @sysconfdir@/makepkg.conf ]]; then + echo "ERROR: unable to read @sysconfdir@/makepkg.conf" + exit 1 +fi + +source "@sysconfdir@/makepkg.conf" +if [[ -r ~/.makepkg.conf ]]; then + source ~/.makepkg.conf +fi + +pkg_arch=${CARCH:-'unknown'} +pkg_dest="${PKGDEST:-$PWD}" +pkg_pkger=${PACKAGER:-'Unknown Packager'} + +pkg_name="$1" +pkg_dir=("$pac_db/$pkg_name"-+([^-])-+([^-])) +pkg_namver=("${pkg_dir[@]##*/}") + +# +# Checks everything is in place +# +if [[ ! -d $pac_db ]]; then + echo "ERROR: pacman database directory ${pac_db} not found" + exit 1 +fi + +if (( ${#pkg_dir[@]} != 1 )); then + printf "ERROR: %d entries for package %s found in pacman database\n" \ + ${#pkg_dir[@]} "${pkg_name}" + printf "%s\n" "${pkg_dir[@]}" + exit 1 +fi + +if [[ ! -d $pkg_dir ]]; then + printf "ERROR: package %s is found in pacman database,\n" "${pkg_name}" + printf " but \`%s' is not a directory\n" "${pkg_dir}" + exit 1 +fi + +# +# Begin +# +echo "Package: ${pkg_namver}" +work_dir=$(mktemp -d --tmpdir bacman.XXXXXXXXXX) +cd "$work_dir" || exit 1 + +# +# File copying +# +echo "Copying package files..." + +cat "$pkg_dir"/files | +while read i; do + if [[ -z $i ]]; then + continue + fi + + if [[ $i == %+([A-Z])% ]]; then + current=$i + continue + fi + + case "$current" in + %FILES%) + ret=0 + if [[ -e /$i ]]; then + bsdtar -cnf - "/$i" 2> /dev/null | bsdtar -xpf - + + # Workaround to bsdtar not reporting a missing file as an error + if ! [[ -e $work_dir/$i || -L $work_dir/$i ]]; then + echo "" + echo "ERROR: unable to add /$i to the package" + echo " If your user does not have permssion to read this file then" + echo " you will need to run $myname as root" + rm -rf "$work_dir" + exit 1 + fi + else + echo "" + echo "WARNING: package file /$i is missing" + echo "" + fi + ;; + esac +done + +ret=$? +if (( ret )); then + rm -rf "$work_dir" + exit 1 +fi + +pkg_size=$(du -sk | awk '{print $1 * 1024}') + +# +# .PKGINFO stuff +# TODO adopt makepkg's write_pkginfo() into this or scripts/library +# +echo Generating .PKGINFO metadata... +echo "# Generated by $myname $myver" > .PKGINFO +if [[ $INFAKEROOT == "1" ]]; then + echo "# Using $(fakeroot -v)" >> .PKGINFO +fi +echo "# $(LC_ALL=C date)" >> .PKGINFO +echo "#" >> .PKGINFO + +cat "$pkg_dir"/{desc,files} | +while read i; do + if [[ -z $i ]]; then + continue; + fi + + if [[ $i == %+([A-Z])% ]]; then + current=$i + continue + fi + + case "$current" in + # desc + %NAME%) + echo "pkgname = $i" >> .PKGINFO + ;; + %VERSION%) + echo "pkgver = $i" >> .PKGINFO + ;; + %DESC%) + echo "pkgdesc = $i" >> .PKGINFO + ;; + %URL%) + echo "url = $i" >> .PKGINFO + ;; + %LICENSE%) + echo "license = $i" >> .PKGINFO + ;; + %ARCH%) + echo "arch = $i" >> .PKGINFO + ;; + %BUILDDATE%) + echo "builddate = $(date -u "+%s")" >> .PKGINFO + ;; + %PACKAGER%) + echo "packager = $pkg_pkger" >> .PKGINFO + ;; + %SIZE%) + echo "size = $pkg_size" >> .PKGINFO + ;; + %GROUPS%) + echo "group = $i" >> .PKGINFO + ;; + %REPLACES%) + echo "replaces = $i" >> .PKGINFO + ;; + %DEPENDS%) + echo "depend = $i" >> .PKGINFO + ;; + %OPTDEPENDS%) + echo "optdepend = $i" >> .PKGINFO + ;; + %CONFLICTS%) + echo "conflict = $i" >> .PKGINFO + ;; + %PROVIDES%) + echo "provides = $i" >> .PKGINFO + ;; + + # files + %BACKUP%) + # strip the md5sum after the tab + echo "backup = ${i%%$'\t'*}" >> .PKGINFO + ;; + esac +done + +comp_files=".PKGINFO" + +if [[ -f $pkg_dir/install ]]; then + cp "$pkg_dir/install" "$work_dir/.INSTALL" + comp_files+=" .INSTALL" +fi +if [[ -f $pkg_dir/changelog ]]; then + cp "$pkg_dir/changelog" "$work_dir/.CHANGELOG" + comp_files+=" .CHANGELOG" +fi + +# +# Fixes owner:group and permissions for .PKGINFO, .CHANGELOG, .INSTALL +# +chown root:root "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null +chmod 644 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null + +# +# Generate the package +# +echo "Generating the package..." + +pkg_file="$pkg_dest/$pkg_namver-$pkg_arch${PKGEXT}" +ret=0 + +# TODO: Maybe this can be set globally for robustness +shopt -s -o pipefail +bsdtar -cf - $comp_files * | +case "$PKGEXT" in + *tar.gz) gzip -c -f -n ;; + *tar.bz2) bzip2 -c -f ;; + *tar.xz) xz -c -z - ;; + *tar.Z) compress -c -f ;; + *tar) cat ;; + *) echo "WARNING: '%s' is not a valid archive extension." \ + "$PKGEXT" >&2; cat ;; +esac > "${pkg_file}"; ret=$? + +if (( ret )); then + echo "ERROR: unable to write package to $pkg_dest" + echo " Maybe the disk is full or you do not have write access" + rm -rf "$work_dir" + exit 1 +fi + +rm -rf "$work_dir" + +echo Done + +exit 0 + +# vim: set ts=2 sw=2 noet: |