[PATCH] Maintain compatability with Python 2.4

[Joshua Lock <josh@linux.intel.com>]

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Hi,

I just found this patch lying around, I forgot to submit it here.

A user contacted me about requiring Python 2.5 features in
relocatable.bbclass when OE claims Python 2.4 support.

I wrote them this patch and haven't heard any complaints back so assume
it works as intended, however I haven't tested it much myself.

When I raised the Python 2.4 vs 2.5 issue a while back it seems the
consensus was to stick to 2.4 support as RHEL still uses it.

Anyone care to merge?

Thanks,
Joshua
-- 
Joshua Lock
        Intel Open Source Technology Centre

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From 72399a3064367c92fcb7fe832adca289de0c10b2 Mon Sep 17 00:00:00 2001
From: Joshua Lock <josh@linux.intel.com>
Date: Mon, 10 May 2010 17:01:35 +0100
Subject: [PATCH] relocatable.bbclass: don't use Python 2.5 features

str.partition() is a "new" method for Python 2.5, as we claim Pyhton 2.4 or
above is required in the wiki we shouldn't use methods which aren't available
in Python 2.4.

This patch adds a (horrible) method, string_after() to replace the use of
str.partition()

Signed-off-by: Joshua Lock <josh@linux.intel.com>
---
 classes/relocatable.bbclass |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/classes/relocatable.bbclass b/classes/relocatable.bbclass
index eb5b9e6..cb82315 100644
--- a/classes/relocatable.bbclass
+++ b/classes/relocatable.bbclass
@@ -3,6 +3,11 @@ SYSROOT_PREPROCESS_FUNCS += "relocatable_binaries_preprocess"
 CHRPATH_BIN ?= "chrpath"
 PREPROCESS_RELOCATE_DIRS ?= ""
 
+def string_after(target, split):
+    target = target.strip().lstrip()
+    tmp = target[target.rfind(split):len(target)]
+    return tmp[len(split):len(target)]
+
 def process_dir (directory, d):
     import subprocess as sub
     import stat
@@ -44,7 +49,7 @@ def process_dir (directory, d):
                 continue
 
             # Throw away everything other than the rpath list
-            curr_rpath = err.partition("RPATH=")[2]
+            curr_rpath = string_after(err, "RPATH=")
             #bb.note("Current rpath for %s is %s" % (fpath, curr_rpath.strip()))
             rpaths = curr_rpath.split(":")
             new_rpaths = []
@@ -55,15 +60,12 @@ def process_dir (directory, d):
                 # If the rpath shares a root with base_prefix determine a new dynamic rpath from the
                 # base_prefix shared root
                 if rpath.find(basedir) != -1:
-                    depth = fpath.partition(basedir)[2].count('/')
-                    libpath = rpath.partition(basedir)[2].strip()
+                    depth = string_after(fpath, basedir).count('/')
+                    libpath = string_after(rpath, basedir).strip()
                 # otherwise (i.e. cross packages) determine a shared root based on the TMPDIR
-                # NOTE: This will not work reliably for cross packages, particularly in the case
-                # where your TMPDIR is a short path (i.e. /usr/poky) as chrpath cannot insert an
-                # rpath longer than that which is already set.
                 else:
-                    depth = fpath.rpartition(tmpdir)[2].count('/')
-                    libpath = rpath.partition(tmpdir)[2].strip()
+                    depth = string_after(rpath, tmpdir).count('/')
+                    libpath = string_after(rpath, tmpdir).strip()
 
                 base = "$ORIGIN"
                 while depth > 1:
@@ -74,7 +76,7 @@ def process_dir (directory, d):
             # if we have modified some rpaths call chrpath to update the binary
             if len(new_rpaths):
                 args = ":".join(new_rpaths)
-                #bb.note("Setting rpath for %s to %s" %(fpath,args))
+                #bb.note("Setting rpath for %s to %s" %(fpath, args))
                 sub.call([cmd, '-r', args, fpath])
 
             if perms:
-- 
1.6.6.1