bacman: unify package creation with makepkg

Currently bacman always compresses with gzip now matter what PKGEXT is
set to.  Rework the entire package creation process to be similar to
that in makepkg.  This also make the explicit assumption that PKGEXT is
defined in makepkg.conf.

Thanks to Nelson Chan <khcha.n.el@gmail.com> for the original patch to
fix the incorrect package compression.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 35 insertions, 9 deletions

diff --git a/contrib/bacman b/contrib/bacman
index dfd53e8b..6dd78394 100755
--- a/contrib/bacman
+++ b/contrib/bacman
@@ -87,7 +87,6 @@ fi
 
 pkg_arch=${CARCH:-'unknown'}
 pkg_dest="${PKGDEST:-$PWD}"
-pkg_ext=${PKGEXT:-'.pkg.tar.gz'}
 pkg_pkger=${PACKAGER:-'Unknown Packager'}
 
 pkg_name="$1"
@@ -164,13 +163,6 @@ fi
 
 pkg_size=$(du -sk | awk '{print $1 * 1024}')
 
-if [ -f "$pkg_dir/install" ] ; then
-    cp "$pkg_dir/install" "$work_dir/.INSTALL"
-fi
-if  [ -f $pkg_dir/changelog ] ; then
-    cp "$pkg_dir/changelog" "$work_dir/.CHANGELOG"
-fi
-
 #
 # .PKGINFO stuff
 #
@@ -254,6 +246,17 @@ while read i; do
     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" "$work_dir/.CHANGELOG"
+    comp_files+=" .CHANGELOG"
+fi
+
 #
 # Fixes owner:group and permissions for .PKGINFO, .CHANGELOG, .INSTALL
 #
@@ -265,8 +268,31 @@ chmod 644 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null
 #
 echo "Generating the package..."
 
+case "$PKGEXT" in
+	*tar.gz)  EXT=${PKGEXT%.gz} ;;
+	*tar.bz2) EXT=${PKGEXT%.bz2} ;;
+	*tar.xz)  EXT=${PKGEXT%.xz} ;;
+	*tar)     EXT=${PKGEXT} ;;
+	*) echo "WARNING: '%s' is not a valid archive extension." \
+	"$PKGEXT" ; EXT=$PKGEXT ;;
+esac
+
+pkg_file="$pkg_dest/$pkg_namver-$pkg_arch${PKGEXT}"
 ret=0
-bsdtar -czf "$pkg_dest/$pkg_namver-$pkg_arch$pkg_ext" $(ls -A) || ret=$?
+
+# when fileglobbing, we want * in an empty directory to expand to
+# the null string rather than itself
+shopt -s nullglob
+# 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)     cat ;;
+esac > ${pkg_file} || ret=$?
+
 if [ $ret -ne 0 ]; then
     echo "ERROR: unable to write package to $pkg_dest"
     echo "       Maybe the disk is full or you do not have write access"