升级包自动生成脚本

升级包自动生成脚本如下:

#!/bin/sh
# Description: this is used to generate upgrade package
# Usage: package_generate.sh dirname [package_name]
#


#######################################################################
#            USER DEFINITION
#######################################################################
# default package_name
package_name=apollo-sw-$(date +%Y-%m-%d-%H-%M)

# list images to be update, [<filename> <image_location>]...
image_list="
linux-2.6.28.10/vmlinux.bin    mtd4
appfs.jffs2.nand           mtd5
rootfs.arm.jffs2.nand       mtd6
"

######################################################################
#            INPUT PROCESS
######################################################################
############### Get dirname ###########
if [ $# -lt 1 ]
then
    echo "Usage: sh $0 dirname [package_name]"
    exit
fi

dir=$1

############### Get package name #######
if [ $# -gt 1 ]
then
    package_name=$2
fi

############## Check files exist && image_location #######
item="FILE"

# Check files exist
for i in $image_list; do
    if [ $item = "FILE" ]; then
    item="TARGET"
    #check file exist
    if [ ! -f $dir/$i ]; then
        echo "ERR: $dir/$i is not a file\n"
        exit
    fi   
    else
    item="FILE"
    match=$(expr match "$i" '\(mtd[0-9][0-9]*\)') #extract $substring at the begin of $i

    if [ -z $match ]; then
        echo "ERR: invalid image location $i"
        exit
    fi
    if [ $match != $i ]; then
        echo "ERR: invalid image location $i"
        exit
    fi
    fi
done


######################################################################
#            PROCESS PER LINE
######################################################################
bury_copy()
{
    mkdir -p $(dirname $2) && cp $1 $2
}


targetdir=${package_name}_dir

rm -rf $targetdir
mkdir $targetdir
echo "#!/bin/sh" > $targetdir/autorun.sh

item="FILE"
# Check files exist
for i in $image_list; do
    if [ $item = "FILE" ]; then
    item="TARGET"
    file=$i
    else
    item="FILE"

    #copy file to dirs
    bury_copy $dir/$file $targetdir/$file

    #generate command of image_update
    dev=/dev/$i
    cksum=$(cksum $dir/$file)
    crc=$(expr "$cksum" : '\([0-9][0-9]*\)')
    cksum=${cksum#$crc}
    len=$(expr "$cksum" : '\(.[0-9][0-9]*\)')

    echo image_update -d $dev -m $file -c $crc -l $len >> $targetdir/autorun.sh
    fi
done

chmod +x $targetdir/autorun.sh

mkcramfs $targetdir $package_name