[bitbake-devel] [PATCH] siggen.py: sort task hash depedencies with basepath

[Matthew McClintock]

Without this patch the tash hash dependencies can be in a order
that is dependent upon directory/filesystem layout. With this
change the data is sorted the same regardless.

Without this the dependent hashes could be in different orders
on different systems and consequently final md5 hash would differ
as well even though nothing else changed.

Signed-off-by: Matthew McClintock <msm at freescale.com>
---
 lib/bb/siggen.py |   25 ++++++++++++++-----------
 1 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 217f29b..9b73c4c 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -136,7 +136,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
         k = fn + "." + task
         data = dataCache.basetaskhash[k]
         self.runtaskdeps[k] = []
-        for dep in sorted(deps):
+        for dep in sorted(deps, key=clean_basepath):
             # We only manipulate the dependencies for packages not in the whitelist
             if self.twl and not self.twl.search(dataCache.pkg_fn[fn]):
                 # then process the actual dependencies
@@ -218,6 +218,19 @@ def dump_this_task(outfile, d):
     task = "do_" + d.getVar("BB_CURRENTTASK", True)
     bb.parse.siggen.dump_sigtask(fn, task, outfile, "customfile")
 
+def clean_basepath(a):
+    if a.startswith("virtual:"):
+        b = a.rsplit(":", 1)[0] + a.rsplit("/", 1)[1]
+    else:
+        b = a.rsplit("/", 1)[1]
+    return b
+
+def clean_basepaths(a):
+    b = {}
+    for x in a:
+        b[clean_basepath(x)] = a[x]
+    return b
+
 def compare_sigfiles(a, b):
     p1 = pickle.Unpickler(file(a, "rb"))
     a_data = p1.load()
@@ -236,16 +249,6 @@ def compare_sigfiles(a, b):
         removed = sb - sa
         return changed, added, removed
 
-    def clean_basepaths(a):
-        b = {}
-        for x in a:
-            if x.startswith("virtual:"):
-                y = x.rsplit(":", 1)[0] + x.rsplit("/", 1)[1]
-            else:
-                y = x.rsplit("/", 1)[1]
-            b[y] = a[x]
-        return b
-
     if 'basewhitelist' in a_data and a_data['basewhitelist'] != b_data['basewhitelist']:
         print "basewhitelist changed from %s to %s" % (a_data['basewhitelist'], b_data['basewhitelist'])
 
-- 
1.7.6.1