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bitbake: bitbake-diffsigs: allow specifying task & follow deps recursively

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Add the ability to compare the two most recent runs of a specified task,
and follow dependent hash changes recursively. This enables you to trace
back and find exactly why a task was re-run after the fact.

Note that this relies on the metadata providing a function, hooked in
as bb.siggen.find_siginfo, which allows searching in the appropriate
places to find signature data files.

(Bitbake rev: cc70181659c07e04c205e17832846acf1ff31d28)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Paul Eggleton
2012-08-27 21:44:35 +01:00
committed by Richard Purdie
parent d5226c96d3
commit e58eb8cbb0
2 changed files with 103 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bitbake/lib/bb/siggen.py
+10 -7
View File
@@ -301,7 +301,7 @@ def clean_basepaths(a):
b[clean_basepath(x)] = a[x]
return b
def compare_sigfiles(a, b):
def compare_sigfiles(a, b, recursecb = None):
output = []
p1 = pickle.Unpickler(open(a, "rb"))
@@ -369,8 +369,8 @@ def compare_sigfiles(a, b):
if 'runtaskhashes' in a_data and 'runtaskhashes' in b_data:
a = clean_basepaths(a_data['runtaskhashes'])
b = clean_basepaths(b_data['runtaskhashes'])
a = a_data['runtaskhashes']
b = b_data['runtaskhashes']
changed, added, removed = dict_diff(a, b)
if added:
for dep in added:
@@ -381,7 +381,7 @@ def compare_sigfiles(a, b):
#output.append("Dependency on task %s was replaced by %s with same hash" % (dep, bdep))
bdep_found = True
if not bdep_found:
output.append("Dependency on task %s was added with hash %s" % (dep, a[dep]))
output.append("Dependency on task %s was added with hash %s" % (clean_basepath(dep), a[dep]))
if removed:
for dep in removed:
adep_found = False
@@ -391,11 +391,14 @@ def compare_sigfiles(a, b):
#output.append("Dependency on task %s was replaced by %s with same hash" % (adep, dep))
adep_found = True
if not adep_found:
output.append("Dependency on task %s was removed with hash %s" % (dep, b[dep]))
output.append("Dependency on task %s was removed with hash %s" % (clean_basepath(dep), b[dep]))
if changed:
for dep in changed:
output.append("Hash for dependent task %s changed from %s to %s" % (dep, a[dep], b[dep]))
output.append("Hash for dependent task %s changed from %s to %s" % (clean_basepath(dep), a[dep], b[dep]))
if callable(recursecb):
recout = recursecb(dep, a[dep], b[dep])
if recout:
output.extend(recout)
a_taint = a_data.get('taint', None)
b_taint = b_data.get('taint', None)