Currently we have all our elements and library files in a top-level
directory and install them into
<root>/share/diskimage-builder/[elements|lib] (where root is either /
or the root of a virtualenv).
The problem with this is that editable/development installs (pip -e)
do *not* install data_files. Thus we have no canonical location to
look for elements -- leading to the various odd things we do such as a
whole bunch of guessing at the top of disk-image-create and having a
special test-loader in tests/test_elements.py so we can run python
unit tests on those elements that have it.
data_files is really the wrong thing to use for what are essentially
assets of the program. data_files install works well for things like
config-files, init.d files or dropping documentation files.
By moving the elements under the diskimage_builder package, we always
know where they are relative to where we import from. In fact,
pkg_resources has an api for this which we wrap in the new
diskimage_builder/paths.py helper [1].
We use this helper to find the correct path in the couple of places we
need to find the base-elements dir, and for the paths to import the
library shell functions.
Elements such as svc-map and pkg-map include python unit-tests, which
we do not need tests/test_elements.py to special-case load any more.
They just get found automatically by the normal subunit loader.
I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28)
to move disk-image-create to a regular python entry-point.
Unfortunately, this has to move to work with setuptools. You'd think
a symlink under diskimage_builder/[elements|lib] would work, but it
doesn't.
[1] this API handles stuff like getting files out of .zip archive
modules, which we don't do. Essentially for us it's returning
__file__.
Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
subprocess.check_call() returns a byte-string which needs to be turned
into a unicode string for python3 compatability.
Also some minor refactoring while we're here.
Closes-Bug: 1536462
Change-Id: Icd957bc4d93ccad94b1246ad62e6e02ee14d9ca5
Use dib-python to run package-installs using the provided python
version. Automatically detect the python version for our
package-installs-squash since that runs outside the chroot.
Change-Id: I926022bcf8cbcd81b051026ffd5d6477650045ad
subprocess.CalledProcessError in Python 2.6 does not have the 'out'
parameter for __init__, so pass only two of them and manually set
'output' in that case.
Fixes/improves commit 7f410aaff2.
Change-Id: I279bdf433b1272a9c3af4d66a2a52c78a7ac5de2
subprocess.check_output() has been introduced in Python 2.7, so the
script will fail when trying to install stuff in guests with Python 2.6
and older (like RHEL 6 / CentOS 6, for example).
Thus gracefully fallback to subprocess.Popen() when
subprocess.check_output() is not available.
Change-Id: I335148397932177810f095a942b993b249991107
Closes-Bug: #1415240
The latest update to package-install captures both stderr and stdout
from pkg-map, unfortunately, pkg-map has a 'missing-ok' option
which causes it to print an error message on stderr.
The result is that package-install tries to look for packages named
"Missing", "package", "name", etc.
Change-Id: I86b3b71a64b29d533b42fd0cae020e8ecf22cac2
Closes-bug: 1402085
Instead of doing the work in the image of parsing through the element's
package-install declarations, we can squash it on hostside, where we
have both YAML and JSON available to us, and then emit a single
pre-processed file into the target to be used later.
Change-Id: I3f182aa3aae0a79b2f3ea4e66c1878ad12878b0a
We currently support package-installs definitions which has some
limitations and oddities. This new format requires only one definition
which does not reside in our run-parts directories and follows a
consistent naming scheme (package-installs.yaml).
Change-Id: Ie51a7c4fdc15634ae8e069728e5e07cc1dc36095
