Bug 11763

Summary: bitbake-diffsigs: -t matches wrong task signature files
Product: [Build System, Metadata & Runtime] OE-Core Reporter: Patrick Ohly <patrick.ohly>
Component: Scripts and ToolsAssignee: Paul Eggleton <bluelightning>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: Medium+ CC: ross.burton
Version: unspecified   
Target Milestone: 2.5 M1   
Hardware: x86   
OS: Multiple   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)

Description Patrick Ohly 2017-07-06 13:32:42 UTC 
$ bitbake-diffsigs -d -t refkit-image-update-test-a do_rootfs
DEBUG: Signature file (previous): /fast/build/refkit/intel-corei7-64/sstate-cache/31/sstate:refkit-image-update-test-a:intel_corei7_64-refkit-linux:1.0:r0:intel_corei7_64:3:31cb4664537f2b75bd56fb3ab27b4372_ostree_prepare_rootfs.tgz.siginfo
DEBUG: Signature file (latest): /fast/build/refkit/intel-corei7-64/sstate-cache/19/sstate:refkit-image-update-test-a:intel_corei7_64-refkit-linux:1.0:r0:intel_corei7_64:3:19d0014c03c3d8773ffaa1416f579616_ostree_publish_rootfs.tgz.siginfo
...


Note how it picked up two siginfo files for two different tasks, both not being the do_rootfs that was meant to be compared. The actual diff then really is between two completely independent tasks.

Probably the code which looks for siginfo files uses *<task name> as file pattern, without taking into account that one task may be the suffix of another.