[OE-core] [PATCH] e2fsprogs: Package populate-extfs.sh and enable symlink install

[Martin Jansa]

On Fri, Apr 10, 2015 at 04:06:14PM +0200, Martin Jansa wrote:
> * install populate-extfs.sh from contrib, be aware that in order
>   to use it you need to set DEBUGFS shell variable, otherwise it will
>   try to use debugfs from relative path which is almost always
>   incorrect:
>     CONTRIB_DIR=$(dirname $(readlink -f $0))
>     DEBUGFS="$CONTRIB_DIR/../debugfs/debugfs"
> 
> * use symlinks to install e2fsck, mke2fs, without this option we have:
>   $ ls -lahi tmp-glibc/work/arm920tt-oe-linux-gnueabi/e2fsprogs/1.42.9-r0/image/sbin/
>   ...
>   101982430 -rwxr-xr-x 5 bitbake bitbake 972K Apr 10 15:43 e2fsck
>   101982430 -rwxr-xr-x 5 bitbake bitbake 972K Apr 10 15:43 fsck.ext2
>   101982430 -rwxr-xr-x 5 bitbake bitbake 972K Apr 10 15:43 fsck.ext3
>   101982430 -rwxr-xr-x 5 bitbake bitbake 972K Apr 10 15:43 fsck.ext4
>   101982430 -rwxr-xr-x 5 bitbake bitbake 972K Apr 10 15:43 fsck.ext4dev
>   ...
>   101982441 -rwxr-xr-x 5 bitbake bitbake 348K Apr 10 15:43 mke2fs
>   101982441 -rwxr-xr-x 5 bitbake bitbake 348K Apr 10 15:43 mkfs.ext2
>   101982441 -rwxr-xr-x 5 bitbake bitbake 348K Apr 10 15:43 mkfs.ext3
>   101982441 -rwxr-xr-x 5 bitbake bitbake 348K Apr 10 15:43 mkfs.ext4
>   101982441 -rwxr-xr-x 5 bitbake bitbake 348K Apr 10 15:43 mkfs.ext4dev
>   ...
> 
>   which would be OK, because they are hadlinks, but after runstrip in
>   do_package we get one stripped binary and 4 hardlinks to the original
>   one:
> 
>   $ ls -lahi tmp-glibc/work/arm920tt-oe-linux-gnueabi/e2fsprogs/1.42.9-r0/packages-split/e2fsprogs-e2fsck/sbin
>   101982713 -rwxr-xr-x 8 bitbake bitbake 972K Apr 10 15:43 e2fsck
>   101982713 -rwxr-xr-x 8 bitbake bitbake 972K Apr 10 15:43 fsck.ext2
>   101982713 -rwxr-xr-x 8 bitbake bitbake 972K Apr 10 15:43 fsck.ext3
>   101982713 -rwxr-xr-x 8 bitbake bitbake 972K Apr 10 15:43 fsck.ext4
>   101983136 -rwxr-xr-x 2 bitbake bitbake 185K Apr 10 15:43 fsck.ext4dev
>   $ ls -lahi tmp-glibc/work/arm920tt-oe-linux-gnueabi/e2fsprogs/1.42.9-r0/packages-split/e2fsprogs-mke2fs/sbin/
>   101982716 -rwxr-xr-x 8 bitbake bitbake 348K Apr 10 15:43 mke2fs
>   101982716 -rwxr-xr-x 8 bitbake bitbake 348K Apr 10 15:43 mkfs.ext2
>   101988266 -rwxr-xr-x 2 bitbake bitbake  72K Apr 10 15:43 mkfs.ext3
>   101982716 -rwxr-xr-x 8 bitbake bitbake 348K Apr 10 15:43 mkfs.ext4
>   101982716 -rwxr-xr-x 8 bitbake bitbake 348K Apr 10 15:43 mkfs.ext4dev
> 
>   That's super annoying for big files like this which are often include
>   in small recovery images. Using --enable-symlink-install option results
>   in one stripped binary and 4 symlinks:
> 
>   $ ls -lahi tmp-glibc/work/arm920tt-oe-linux-gnueabi/e2fsprogs/1.42.9-r0/packages-split/e2fsprogs-e2fsck/sbin/
>   102113806 -rwxr-xr-x 2 bitbake bitbake 185K Apr 10 15:50 e2fsck
>   102113813 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 fsck.ext2 -> e2fsck
>   102113814 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 fsck.ext3 -> e2fsck
>   102113812 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 fsck.ext4 -> e2fsck
>   102113815 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 fsck.ext4dev -> e2fsck
>   $ ls -lahi tmp-glibc/work/arm920tt-oe-linux-gnueabi/e2fsprogs/1.42.9-r0/packages-split/e2fsprogs-mke2fs/sbin/
>   102113804 -rwxr-xr-x 2 bitbake bitbake  72K Apr 10 15:50 mke2fs
>   102113825 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 mkfs.ext2 -> mke2fs
>   102113826 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 mkfs.ext3 -> mke2fs
>   102113823 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 mkfs.ext4 -> mke2fs
>   102113824 lrwxrwxrwx 1 bitbake bitbake    6 Apr 10 15:50 mkfs.ext4dev -> mke2fs
> 
>   Saving cca 1,5MB.

Ping, this is needed also in fido and dizzy branches.