scripts/gen_initramfs_list.sh: Convert to a /bin/sh script

Replace bashisms with POSIX-compatible shell scripting.

Notably, de-duplicate '/' using a sed command from elsewhere in the same script
rather than "${name//\/\///}".

Commit by Jamey Sharp and Josh Triplett.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index d44cf67..8da7890 100644 (file)
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org>
 # Copyright (C) 2006 Sam Ravnborg <sam@ravnborg.org>
 #
@@ -105,9 +105,9 @@ list_parse() {
 # for links, devices etc the format differs. See gen_init_cpio for details
 parse() {
        local location="$1"
-       local name="${location/${srcdir}//}"
+       local name="/${location#${srcdir}}"
        # change '//' into '/'
-       name="${name//\/\///}"
+       name=$(echo "$name" | sed -e 's://*:/:g')
        local mode="$2"
        local uid="$3"
        local gid="$4"
@@ -117,8 +117,8 @@ parse() {
        [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0
        local str="${mode} ${uid} ${gid}"
 
-       [ "${ftype}" == "invalid" ] && return 0
-       [ "${location}" == "${srcdir}" ] && return 0
+       [ "${ftype}" = "invalid" ] && return 0
+       [ "${location}" = "${srcdir}" ] && return 0
 
        case "${ftype}" in
                "file")
@@ -192,7 +192,7 @@ input_file() {
        if [ -f "$1" ]; then
                ${dep_list}header "$1"
                is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\?/cpio/')"
-               if [ $2 -eq 0 -a ${is_cpio} == "cpio" ]; then
+               if [ $2 -eq 0 -a ${is_cpio} = "cpio" ]; then
                        cpio_file=$1
                        echo "$1" | grep -q '^.*\.cpio\..*' && is_cpio_compressed="compressed"
                        [ ! -z ${dep_list} ] && echo "$1"
@@ -204,7 +204,7 @@ input_file() {
                else
                        echo "$1 \\"
                        cat "$1" | while read type dir file perm ; do
-                               if [ "$type" == "file" ]; then
+                               if [ "$type" = "file" ]; then
                                        echo "$file \\";
                                fi
                        done