initramfs-tools: added support for bzip2 and lzma compressed initramfs.

By default behaviour hasn't been changed, `gzip'. You can now compress
them with bzip2 or lzma. By default -9 is always used, we are worried
about size here so I don't think it should be tweakable.

A new option for initramfs.conf has been added COMPRESSION_TYPE.

--HG--
extra : convert_revision : 4ad57146dc1b7bee2585c1d4d792b3ea242e1fd3

srcpkgs/initramfs-tools/files/conf/initramfs.conf

@@ -55,3 +55,11 @@ DEVICE=eth0
 
 NFSROOT=auto
 
+#
+# COMPRESSION_TYPE: [ gzip | bzip2 | lzma ]
+#
+# Compression type for the newly generated initramfs. By default
+# it's compressed with gzip.
+#
+
+COMPRESSION_TYPE=gzip

srcpkgs/initramfs-tools/files/initramfs.conf.5

@@ -1,4 +1,4 @@
-.TH INITRAMFS.CONF 5  "2008/12/19" "Linux" "initramfs.conf manual"
+.TH INITRAMFS.CONF 5  "2010/02/20" "Linux" "initramfs.conf manual"
 
 .SH NAME
 initramfs.conf \- configuration file for mkinitramfs
@@ -19,6 +19,12 @@ so you can override the settings in the main config file without editing it
 directly.
 
 .SH GENERAL VARIABLES
+.TP
+\fB COMPRESSION_TYPE
+Specifies the compression type used by the generated initramfs. Possible
+values are \fIgzip\fP, \fIbzip2\fP and \fIlzma\fP. If not set or any other
+invalid value is set it will default to \fIgzip\fP.
+
 .TP
 \fB MODULES
 Specifies the modules for the initramfs image.
@@ -67,6 +73,10 @@ The initramfs-tools are written by Maximilian Attems <maks@debian.org>,
 Jeff Bailey <jbailey@raspberryginger.com> and numerous others.
 Loosely based on mkinitrd.conf by Herbert Xu.
 
+This version of initramfs-tools has been modified and improved by
+Juan Romero Pardines <xtraeme@gmail.com> for XBPS - The X Binary
+Package System.
+
 .SH SEE ALSO
 .BR
 .IR initramfs-tools (8),

srcpkgs/initramfs-tools/files/mkinitramfs

@@ -73,6 +73,16 @@ for i in ${EXTRA_CONF}; do
 	fi
 done
 
+# Handle COMPRESSION_TYPE from initramfs.conf.
+compress_cmd_args="-9"
+
+case "${COMPRESSION_TYPE}" in
+gzip) compress_cmd=gzip;;
+bzip2) compress_cmd=bzip2;;
+lzma) compress_cmd=lzma; compress_cmd_args="$compress_cmd_args -c";;
+*) compress_cmd=gzip;;
+esac
+
 # source package confs
 for i in /usr/share/initramfs-tools/conf-hooks.d/*; do
 	if [ -e "${i}" ]; then
@@ -239,7 +249,7 @@ fi
 # Copy resume from klibc
 copy_exec /bin/resume /bin
 
-[ "${verbose}" = y ] && echo "Building cpio ${outfile} initramfs"
+[ "${verbose}" = y ] && echo "Building cpio ${outfile} initramfs (${COMPRESSION_TYPE})"
 (
 # work around lack of "set -o pipefail" for the following pipe:
 # cd "${DESTDIR}" && find . | cpio --quiet --dereference -o -H newc | gzip >"${outfile}" || exit 1
@@ -252,7 +262,7 @@ eval `
         find . 4>&-; echo "ec1=$?;" >&4
     } | {
         cpio --quiet --dereference -o -H newc 4>&-; echo "ec2=$?;" >&4
-    } | gzip >"${outfile}"
+    } | ${compress_cmd} ${compress_cmd_args} >"${outfile}"
     echo "ec3=$?;" >&4
 `
 if [ "$ec1" -ne 0 ]; then exit "$ec1"; fi

srcpkgs/initramfs-tools/template

@@ -1,6 +1,6 @@
 # Template file for 'initramfs-tools'
 pkgname=initramfs-tools
-version=0.96
+version=0.97
 build_style=custom-install
 short_desc="Tools for generating an initramfs"
 maintainer="Juan RP <xtraeme@gmail.com>"
@@ -28,6 +28,8 @@ Add_dependency full findutils
 Add_dependency full sed
 Add_dependency full grep
 Add_dependency full gzip
+Add_dependency full bzip2
+Add_dependency full xz
 Add_dependency full udev
 Add_dependency full module-init-tools
 Add_dependency full busybox-initramfs