You can examine build history output from the command line or from a web interface.
To see any changes that have occurred (assuming you have
BUILDHISTORY_COMMIT = "1"
), you can simply
use any Git command that allows you to view the history of
a repository.
Here is one method:
$ git log -p
You need to realize, however, that this method does show changes that are not significant (e.g. a package's size changing by a few bytes).
A command-line tool called buildhistory-diff
does exist though that queries the Git repository and prints just
the differences that might be significant in human-readable form.
Here is an example:
$ ~/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"
To see changes to the build history using a web interface, follow
the instruction in the README
file here.
http://git.yoctoproject.org/cgit/cgit.cgi/buildhistory-web/.
Here is a sample screenshot of the interface: