From 547bd24884bbf044947620330783fcf09d81256b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joshua=20Ismael=20Haase=20Hern=C3=A1ndez?=
 <hahj87@gmail.com>
Date: Fri, 24 Jun 2011 17:10:46 -0500
Subject: Libremakepkg uses new cleaning mode

---
 libremakepkg | 114 +++++++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 84 insertions(+), 30 deletions(-)

(limited to 'libremakepkg')

diff --git a/libremakepkg b/libremakepkg
index 2226f81..dfcdbe0 100755
--- a/libremakepkg
+++ b/libremakepkg
@@ -20,30 +20,65 @@
 # along with Parabola. If not, see <http://www.gnu.org/licenses/>. 
 
 source /etc/libretools.conf
+source /etc/makepkg.conf
 
 function usage {
-    echo "cd to a dir containing a PKGBUILD and run:" 
-    echo "$0 [options] [makepkg args]"
-    echo "This script will build your package on a chroot."
+    echo 'cd to a dir containing a PKGBUILD and run:' 
+    echo '$0 [options] [makepkg args]'
+    echo 'This script will build your package on a chroot.'
     echo
-    echo "OPTIONS:"
+    echo 'OPTIONS:'
     echo 
-    echo " -h : show this message."
-    echo " -c : cleans CHCOPY before building."
-    echo " -u : updates CHROOT before building."
-    echo " -n : use this dir instead of CHCOPY."
-    echo " -M \"makepkg long arg\" : passes long args to makepkg, use it as many times as needed."
-    echo " -I pkgname : install this package, use it as many times needed."
+    echo ' -h          show this message.'
+    echo ' -c          cleans the chroot before building.'
+    echo ' -u          updates the chroot before building.'
+    echo ' -n          use this dir instead of "${CHCOPY}".'
+    echo ' -I <pkg>    install this package, use it as many times needed.'
+    echo ' -M <--arg>  passes long args to makepkg, use it as many times as needed.'
     echo
 }
 
-_CLEAN=""
+function buildenv {
+    msg "Building env"
+    for mp in ${SRCDEST} ${PKGDEST} ${SRCPKGDEST} ${WORKDIR}; do
+        msg2 "binding /$mp"
+        mkdir -p "${CHROOTDIR}/${CHCOPY}${mp}"
+        mount -o bind ${mp} "${CHROOTDIR}/${CHCOPY}${mp}" || exit 1
+    done
+
+    for config in etc/makepkg.conf etc/pacman.conf etc/mtab; do
+        msg2 "copying config /$etc"
+        cp --remove-destination /$etc $CHROOTDIR/$CHCOPY/$etc || exit 1
+    done
+}
+
+# End inmediately but print a useful message
+trap_exit() {
+  
+  for mp in ${SRCDEST} ${PKGDEST} ${SRCPKGDEST} ${WORKDIR}; do
+      umount "${CHROOTDIR}/${CHCOPY}${mp}"
+  done
+
+  error "$@"
+
+  exit 1
+}
+
+## Trap signals
+# From makepkg
+set -E
+trap 'trap_exit "TERM signal caught. Exiting..."' TERM HUP QUIT
+trap 'trap_exit "Aborted by user! Exiting..."' INT
+trap 'trap_exit "An unknown error has occurred. Exiting..."' ERR
+
+CLEAN_FIRST="n"
 CLEAN_CACHE=""
-update_first="n"
-use_log='n'
-chrootname=${CHCOPY}
-_PKGINSTALL=""
-_MAKEPKG_ARGS=""
+UPDATE_FIRST="n"
+USE_LOG='n'
+CHROOTNAME=${CHCOPY}
+PKGINSTALL=""
+MAKEPKG_ARGS=""
+
 #libremakepkg own args
 libremakepkgargs='hcun:I:M:'
 #now makepkg args
@@ -52,44 +87,63 @@ libremakepkgargs+='ACdefiLmop:rRs'
 while getopts ${libremakepkgargs} arg ; do
     case "${arg}" in
 	h) usage; exit 0 ;;
-	c) _CLEAN="-c" ;;
+	c) CLEAN_FIRST="y" ;;
 	u) update_first="y" ;;
 	n) chrootname="$OPTARG"; echo $chrootname ;;
-	I) _PKGINSTALL+="-I $OPTARG " ;;
-	M) _MAKEPKG_ARGS+=" $OPTARG" ;;
-        L) _MAKEPKG_ARGS+=" -$arg $OPTARG" 
+	I) PKGINSTALL+="-I $OPTARG " ;;
+	M) MAKEPKG_ARGS+=" $OPTARG" ;;
+        L) MAKEPKG_ARGS+=" -$arg $OPTARG" 
             use_log='y';;
-	*) _MAKEPKG_ARGS+=" -$arg $OPTARG" ;;
+	*) MAKEPKG_ARGS+=" -$arg $OPTARG" ;;
     esac
 done
 
-if [ ! -w / ]; then
+if [ ${UID} -ne 0 ]; then
     error "This script must be run as root"
     exit 1
 fi
 
 msg "Checking PKGBUILD for non-free issues"
 pkgbuild-check-nonfree ||{
-# pkgbuild-check-nonfree uses 15 for nonfree and
-# other errors if something failed.
-    if [[ $? -eq 15 ]]; then
+    if [[ $? -eq 15 ]]; then # other errors mean fail, not nonfree
 	error "PKGBUILD contains non-free issues"
 	exit 15
     fi
 }
 
-if [ $update_first = y ]; then
-    msg "Updating the main chroot"
+if [ "${UPDATE_FIRST}" = y ]; then
+    msg "Updating the chroot in use"
 # -c option in mkarchroot indicates cache
-    mkarchroot -c ${CACHEDIR} -u "${CHROOTDIR}/${CHROOT}"
+    mkarchroot -c ${CACHEDIR} -u "${CHROOTDIR}/${CHROOTNAME}"
+
+elif [ "${CLEAN_FIRST}" = y ]; then
+    msg "Cleaning ..."
+    cp "/etc/libretools.d/cleansystem" "${CHROOTDIR}/${CHROOTNAME}/root"
+    (cat <<EOF
+#!/bin/bash
+export LANG=C
+
+pkgs=($(comm -23 <(pacman -Qq | sort) <(sort /root/cleansystem)))
+
+[ ${#pkgs[@]} -gt 0 ] && pacman --noconfirm -Rcs ${pkgs} || echo "done"
+
+EOF
+    ) > "${CHROOTDIR}/${CHROOTNAME}/clean"
+    mkarchroot -r "/clean" "${CHROOTDIR}/${CHROOTNAME}"
+
+elif [ -n ${PKGINSTALL} ]; then
+    msg "Installing packages"
+    makechrootpkg -r ${PKGINSTALL}
 fi
 
+buildenv
 
 msg "Creating the package"
-makechrootpkg $_CLEAN -r ${CHROOTDIR} -l "${chrootname}" $_PKGINSTALL -- $_MAKEPKG_ARGS
+makechrootpkg -r ${CHROOTDIR} -l "${chrootname}" -- ${MAKEPKG_ARGS}
 ev=$? # exit value
 
-[ "$use_log" == 'y' -a -e ${CHROOTDIR}/${chrootname}/build/*.log ] && {
+[ "${USE_LOG}" == 'y' -a -e ${CHROOTDIR}/${chrootname}/build/*.log ] && {
     cp ${CHROOTDIR}/${chrootname}/build/*.log ./
 }
+
 exit $ev
-- 
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