update checkpatch.pl to version 0.16
[linux-2.6.git] / scripts / gen_initramfs_list.sh
index 56b3bed..684fb9c 100644 (file)
@@ -1,6 +1,6 @@
 #!/bin/bash
 # Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org>
-# Copyright (c) 2006           Sam Ravnborg <sam@ravnborg.org>
+# Copyright (C) 2006 Sam Ravnborg <sam@ravnborg.org>
 #
 # Released under the terms of the GNU GPL
 #
@@ -17,15 +17,15 @@ cat << EOF
 Usage:
 $0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ...
        -o <file>      Create gzipped initramfs file named <file> using
-                      gen_init_cpio and gzip
+                      gen_init_cpio and gzip
        -u <uid>       User ID to map to user ID 0 (root).
-                      <uid> is only meaningful if <cpio_source>
-                      is a directory.
+                      <uid> is only meaningful if <cpio_source> is a
+                      directory.  "squash" forces all files to uid 0.
        -g <gid>       Group ID to map to group ID 0 (root).
-                      <gid> is only meaningful if <cpio_source>
-                      is a directory.
+                      <gid> is only meaningful if <cpio_source> is a
+                      directory.  "squash" forces all files to gid 0.
        <cpio_source>  File list or directory for cpio archive.
-                      If <cpio_source> is a .cpio file it will be used
+                      If <cpio_source> is a .cpio file it will be used
                       as direct input to initramfs.
        -d             Output the default cpio list.
 
@@ -36,6 +36,12 @@ to reset the root/group mapping.
 EOF
 }
 
+# awk style field access
+# $1 - field number; rest is argument string
+field() {
+       shift $1 ; echo $1
+}
+
 list_default_initramfs() {
        # echo usr/kinit/kinit
        :
@@ -107,8 +113,8 @@ parse() {
        local gid="$4"
        local ftype=$(filetype "${location}")
        # remap uid/gid to 0 if necessary
-       [ "$uid" -eq "$root_uid" ] && uid=0
-       [ "$gid" -eq "$root_gid" ] && gid=0
+       [ "$root_uid" = "squash" ] && uid=0 || [ "$uid" -eq "$root_uid" ] && uid=0
+       [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0
        local str="${mode} ${uid} ${gid}"
 
        [ "${ftype}" == "invalid" ] && return 0
@@ -119,22 +125,17 @@ parse() {
                        str="${ftype} ${name} ${location} ${str}"
                        ;;
                "nod")
-                       local dev_type=
-                       local maj=$(LC_ALL=C ls -l "${location}" | \
-                                       gawk '{sub(/,/, "", $5); print $5}')
-                       local min=$(LC_ALL=C ls -l "${location}" | \
-                                       gawk '{print $6}')
-
-                       if [ -b "${location}" ]; then
-                               dev_type="b"
-                       else
-                               dev_type="c"
-                       fi
-                       str="${ftype} ${name} ${str} ${dev_type} ${maj} ${min}"
+                       local dev=`LC_ALL=C ls -l "${location}"`
+                       local maj=`field 5 ${dev}`
+                       local min=`field 6 ${dev}`
+                       maj=${maj%,}
+
+                       [ -b "${location}" ] && dev="b" || dev="c"
+
+                       str="${ftype} ${name} ${str} ${dev} ${maj} ${min}"
                        ;;
                "slink")
-                       local target=$(LC_ALL=C ls -l "${location}" | \
-                                       gawk '{print $11}')
+                       local target=`field 11 $(LC_ALL=C ls -l "${location}")`
                        str="${ftype} ${name} ${target} ${str}"
                        ;;
                *)
@@ -158,7 +159,7 @@ unknown_option() {
 }
 
 list_header() {
-       echo "deps_initramfs := \\"
+       :
 }
 
 header() {
@@ -170,7 +171,7 @@ dir_filelist() {
        ${dep_list}header "$1"
 
        srcdir=$(echo "$1" | sed -e 's://*:/:g')
-       dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n" 2>/dev/null)
+       dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n")
 
        # If $dirlist is only one line, then the directory is empty
        if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
@@ -190,9 +191,10 @@ input_file() {
        source="$1"
        if [ -f "$1" ]; then
                ${dep_list}header "$1"
-               is_cpio="$(echo "$1" | sed 's/^.*\.cpio/cpio/')"
+               is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\?/cpio/')"
                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"
                        return 0
                fi
@@ -200,7 +202,11 @@ input_file() {
                        print_mtime "$1" >> ${output}
                        cat "$1"         >> ${output}
                else
-                       grep ^file "$1" | cut -d ' ' -f 3
+                       cat "$1" | while read type dir file perm ; do
+                               if [ "$type" == "file" ]; then
+                                       echo "$file \\";
+                               fi
+                       done
                fi
        elif [ -d "$1" ]; then
                dir_filelist "$1"
@@ -218,11 +224,13 @@ cpio_file=
 cpio_list=
 output="/dev/stdout"
 output_file=""
+is_cpio_compressed=
 
 arg="$1"
 case "$arg" in
        "-l")   # files included in initramfs - used by kbuild
                dep_list="list_"
+               echo "deps_initramfs := \\"
                shift
                ;;
        "-o")   # generate gzipped cpio image named $1
@@ -276,7 +284,11 @@ if [ ! -z ${output_file} ]; then
                cpio_tfile=${cpio_file}
        fi
        rm ${cpio_list}
-       cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
+       if [ "${is_cpio_compressed}" = "compressed" ]; then
+               cat ${cpio_tfile} > ${output_file}
+       else
+               cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
+       fi
        [ -z ${cpio_file} ] && rm ${cpio_tfile}
 fi
 exit 0