On 1/19/12 9:04 AM, Paul Eggleton wrote:
On Thursday 19 January 2012 13:08:03 Richard Purdie wrote:
If I change into tmp/buildhistory and show the last commit the result is
included below. Since the version changed, the diff isn't as readable as
would be ideal, however reading through it clearly shows the .a files
moving to the staticdev packages with no unintended changes as far as I
could tell.
One of my big worries with the staticdev changes is any unintended
packaging changes. This lets me view the changes more precisely which
can only lead to higher quality regression spotting for the project. I'd
like to suggest more people start enabling this and using it to check
the changes they're making.
I know Paul is working on tools to better display these changes too and
those will help make these diffs easier to read.
There's the command line buildhistory-diff tool (in scripts/) already, and this
will query the git repository and report just the changes that might represent
regressions, in a form that's a bit easier to read than git diff. For example
(simulated):
paul@helios:~/poky/poky/build/tmp/buildhistory$
~/poky/poky/scripts/buildhistory-diff . HEAD^^
Changes to images/qemux86_64/eglibc/core-image-minimal (files-in-image.txt):
/etc/anotherpkg.conf was added
/sbin/anotherpkg was added
* (installed-package-names.txt):
* anotherpkg was added
Changes to images/qemux86_64/eglibc/core-image-minimal
(installed-package-names.txt):
anotherpkg was added
packages/qemux86_64-poky-linux/v86d: PACKAGES: added "v86d-extras"
* PR changed from "r0" to "r1"
* PV changed from "0.1.10" to "0.1.12"
packages/qemux86_64-poky-linux/v86d/v86d: PKGSIZE changed from 110579 to 144381
(+30%)
* PR changed from "r0" to "r1"
* PV changed from "0.1.10" to "0.1.12"
For those that may not be aware I'm also working on a web frontend to
view/manage these changes more effectively (utilising the same backend code),
however it still needs quite a bit of work.
Does the build history due any scanning of either package or shared library
dependencies?
I hit a case recently working on a custom layer, where everything built
properly, I made a few changes and I happened to notice by accident that it was
no longer linking to the shared library, but instead the static library. This
changed both the package (runtime) dependencies and the shared library usage in
the problem... the resulting binary suddenly jumped in size as well.
--Mark
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