From mboxrd@z Thu Jan  1 00:00:00 1970
From: Amadeusz =?UTF-8?B?xbtvxYJub3dza2k=?= <aidecoe-2qtfh70TtYba5EbDDlwbIw@public.gmane.org>
Subject: [PATCH] dracut-functions: additional symlinks for library files
Date: Wed, 7 Jul 2010 16:39:09 +0200
Message-ID: <20100707163909.042ddb5e@etiriah>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=PGP-SHA1;
 boundary="Sig_/AGEUYjTb_sAa49BkM.c/874"; protocol="application/pgp-signature"
Return-path: <initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Sender: initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
List-ID: <initramfs.vger.kernel.org>
To: initramfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

--Sig_/AGEUYjTb_sAa49BkM.c/874
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: quoted-printable

rev_lib_symlinks: it's new
inst_library: creating additional symlinks for installed library files
---
 dracut-functions |   35 ++++++++++++++++++++++++++++++++++-
 1 files changed, 34 insertions(+), 1 deletions(-)

diff --git a/dracut-functions b/dracut-functions
index 1f2528e..b9b4d43 100755
--- a/dracut-functions
+++ b/dracut-functions
@@ -226,11 +226,36 @@ inst_simple() {
     cp -pfL "$src" "${initdir}$target"
 }
=20
+# find symlinks linked to given library file
+# $1 =3D library file
+# Function searches for symlinks by stripping version numbers appended to
+# library filename, checks if it points to the same target and finally
+# prints the list of symlinks to stdout.
+#
+# Example:
+# rev_lib_symlinks libfoo.so.8.1
+# output: libfoo.so.8 libfoo.so
+# (Only if libfoo.so.8 and libfoo.so exists on host system.)
+rev_lib_symlinks() {
+    [[ ! $1 ]] && return 0
+
+    local fn=3D"$1" orig=3D"$(readlink -f "$1")" links=3D''
+
+    [[ ${fn} =3D~ .*\.so\..* ]] || return 1
+
+    until [[ ${fn##*.} =3D=3D so ]]; do
+        fn=3D"${fn%.*}"
+        [[ -L ${fn} && $(readlink -f "${fn}") =3D=3D ${orig} ]] && links+=
=3D" ${fn}"
+    done
+
+    echo ${links}
+}
+
 # Same as above, but specialized to handle dynamic libraries.
 # It handles making symlinks according to how the original library
 # is referenced.
 inst_library() {
-    local src=3D$1 dest=3D${2:-$1}
+    local src=3D$1 dest=3D${2:-$1} lib reallib symlink
     [[ -e $initdir$dest ]] && return 0
     if [[ -L $src ]]; then
 	reallib=3D$(readlink -f "$src")
@@ -241,6 +266,14 @@ inst_library() {
     else
 	inst_simple "$src" "$dest"
     fi
+
+    # Create additional symlinks.  See rev_symlinks description.
+    for symlink in $(rev_lib_symlinks $src) $(rev_lib_symlinks $reallib); =
do
+        [[ ! -e $initdir$symlink ]] && {
+            dinfo "Creating extra symlink: $symlink"
+            inst_symlink $symlink
+        }
+    done
 }
=20
 # find a binary.  If we were not passed the full path directly,
--=20
1.7.1

--Sig_/AGEUYjTb_sAa49BkM.c/874
Content-Type: application/pgp-signature; name=signature.asc
Content-Disposition: attachment; filename=signature.asc

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)

iEYEARECAAYFAkw0kY0ACgkQ+hU8EsKEdQ1+4QCfSUt7+CDjzR7PGvidS6LfmSDb
/+4AnjXMRc3IUVE+BAhb07TD+K1dHwkd
=Nczm
-----END PGP SIGNATURE-----

--Sig_/AGEUYjTb_sAa49BkM.c/874--