In order to get cross-compilers, we generate a few aports (e.g.
binutils-armhf, gcc-armhf) automatically from Alpine's aports.
pmbootstrap was already able to perform a git checkout of Alpine's
aports repository. But it needed to be manually updated. Otherwise
the `pmbootstrap aportgen` command could actually downgrade the aport
instead of updating it to the current version.
After thinking about adding a dedicated pmbootstrap command for
updating git repositories, I thought it would be better to not open
that can of worms (pmbootstrap as general git wrapper? no thanks).
The solution implemented here compares the upstream aport version of
the git checkout of a certain package (e.g. gcc for gcc-armhf) with the
version in Alpine's binary package APKINDEX. When the aport version is
lower than the binary package version, it shows the user how to update
the git repository with just one command:
pmbootstrap chroot --add=git --user -- \
git -C /mnt/pmbootstrap-git/aports_upstream pull
Changes:
* `pmb.aportgen.core.get_upstream_aport()`: new function, that returns
the absolute path to the upstream aport on disk, after checking the
version of the aport against the binary package.
* Use that new function in pmb.aportgen.gcc and pmb.aportgen.binutils
* New function `pmb.helpers.repo.alpine_apkindex_path()`: updates the
APKINDEX if necessary and returns the absolute path to the APKINDEX.
This code was basically present already, but not as function, so now
we have a bit less overhead there.
* `pmbootstrap chroot`: new `--user` argument
* `pmb.parse.apkbuild`: make pkgname check optional, as it fails with
the official gcc APKBUILD before we modify it (the current APKBUILD
parser is not meant to be perfect, as this would require a full shell
parsing implementation).
* Extended `test_aportgen.py` and enabled it by default in
`testcases_fast.sh`. Previously it was disabled due to traffic
concerns (cloning the aports repo, but then again we do a full KDE
plasma mobile installation in Travis now, so that shouldn't matter
too much).
* `testcases_fast.sh`: With "test_aport_in_sync_with_git" removed
from the disabled-by-default list (left over from timestamp based
rebuilds), there were no more test cases disabled by default. I've
changed it, so now the qemu_running_processes test case is disabled,
and added an `--all` parameter to the script to disable no test
cases. Travis runs with the `--all` parameter while it's useful to
do a quick local test without `--all` in roughly 2 minutes instead of
10.
* `aports/cross/binutils-*`: Fix `_mirror` variable to point to current
default Alpine mirror (so the aportgen testcase runs through).
Follow up to #1162.
* `pmb.build.buildinfo()`: Used to record the build environment. It is
flawed because it scans the repo APKINDEX files instead of using the
actually installed packages list. When it was implemented we were not
able to do the latter. After this is removed, `pmb.parse.depends` can
be simplified (it needs to be rewritten for #1122).
* `pmb.helpers.repo.diff()` and `pmb.helpers.repo.files()`: These were
used exclusively by `pmb.build.buildinfo()`, to learn about which
files have been changed in the local repository folder after a
package was built. The idea was, that we could find subpackages that
way. But this information is present in the installed package list as
well, which is a much cleaner approach.
* Rename pmb/build/package.py to pmb/build/_package.py, so we can
access the functions it contains in testcases, and still use
pmb.build.package()
* Refactor the entire file. Instead of one big function that does
too many things, we have many small ones now, that are tested
in the testsuite and easier to modify
* Whenever building a package, pmbootstrap does not only build and
install the "makedepends" (like we did before), now it does the
same for the "depends". That's required to be compatible with
abuild. The old behavior can still be used with 'pmbootstrap
build --ignore-depends'.
* Because of that change, noarch packages can no longer be built in
the native chroot if we need them for a foreign chroot. A device-
package depending on a kernel would pull in the same kernel for
the native architecture otherwise.
* Running 'pmbootstrap build device-...' without '--ignore-depends'
and without a matching '--arch' displays a note that explains
this change to the user and tells how to use it instead.
* Noarch packages no longer get symlinked. That was only
implemented for packages built in the native chroot, and now that
is not always the case anymore. Symlinking these packages creates
packages with broken dependencies anyway (e.g.
device-samsung-i9100 can't be installed in x86_64, because
linux-samsung-i9100 is armhf only).
* Rename "carch" to "arch" wherever used. Naming it "carch"
sometimes is confusing with no benefit.
* Add a testcase for the aarch64 qemu workaround (because it failed
first and I needed to know for sure if it is working again).
* Improved some verbose logging, which helped with development of
this feature.
* Removed the old "build" test case (which was disabled in
testcases_fast.sh) as the new "build_package" test case covers its
functionallity.
* Only build indexes if the packages folder exists for that arch (Travis
couldn't run a test case otherwise)
* Removed obsolete apkindex_files cache testcase (the corresponding
function has been removed in #345 already).
* Fix test_challenge_apk: It failed on Travis, because we're accessing
/etc/abuild.conf, which only exists after initializing the build environment.
It's a random dummy file anyway, so I've replaced it with another file.
* Fix test_folder_size: accept a tolerance in the result
I've replaced all instances in the code of `os.path.abspath`
with `os.path.realpath`, as this does the same as `abspath`
plus resolving symlinks.
See also: https://stackoverflow.com/a/40311142
This is required for developing and testing the binary repository
scripts (see #64). Changes:
* When specified, the local folder gets mounted inside the chroots
as /mnt/postmarketos-mirror
* The apkindex_files() function outputs the correct path to the local
repository (it does *not* hash the URL in that case, which would
be wrong)
* /etc/apk/repositories: when the pmOS mirror is a local folder,
the path "/mnt/postmarketos-mirror" gets added to that file instead
of the outside path (so apk finds it properly inside the chroot)
TLDR: Always rebuild/install packages when something changed when executing "pmbootstrap install/initfs/flash", more speed in dependency resolution.
---
pmbootstrap has already gotten some support for "timestamp based rebuilds", which modifies the logic for when packages should be rebuilt. It doesn't only consider packages outdated with old pkgver/pkgrel combinations, but also packages, where a source file has a newer timestamp, than the built package has.
I've found out, that this can lead to more rebuilds than expected. For example, when you check out the pmbootstrap git repository again into another folder, although you have already built packages. Then all files have the timestamp of the checkout, and the packages will appear to be outdated. While this is not largely a concern now, this will become a problem once we have a binary package repository, because then the packages from the binary repo will always seem to be outdated, if you just freshly checked out the repository.
To combat this, git gets asked if the files from the aport we're looking at are in sync with upstream, or not. Only when the files are not in sync with upstream and the timestamps of the sources are newer, a rebuild gets triggered from now on.
In case this logic should fail, I've added an option during "pmbootstrap init" where you can enable or disable the "timestamp based rebuilds" option.
In addition to that, this commit also works on fixing #120: packages do not get updated in "pmbootstrap install" after they have been rebuilt. For this to work, we specify all packages explicitly for abuild, instead of letting abuild do the resolving. This feature will also work with the "timestamp based rebuilds".
This commit also fixes the working_dir argument in pmb.helpers.run.user, which was simply ignored before.
Finally, the performance of the dependency resolution is faster again (when compared to the current version in master), because the parsed apkbuilds and finding the aport by pkgname gets cached during one pmbootstrap call (in args.cache, which also makes it easy to put fake data there in testcases).
The new dependency resolution code can output lots of verbose messages for debugging by specifying the `-v` parameter. The meaning of that changed, it used to output the file names where log messages come from, but no one seemed to use that anyway.
Oliver Smith