This was already supported by the commit modifier API, just needed to
expose it. This will also be used to test the libarchive API in a future
test.
Closes: #275
Approved by: cgwalters
We had a policy of cleaning up all files in `$repo/tmp` older
than one day, but we should really clean up previous bootid staging
directories too, as they can potentially take up a lot of disk space.
https://bugzilla.gnome.org/show_bug.cgi?id=760531Closes: #170
Approved by: jlebon
We keep forgetting to update `apidoc/ostree-sections.txt`, so let's
start enforcing it. Of course it turns out we had some bugs here
like symbols marked as public but never implemented, etc. Those
are fixed in the prior commits.
Closes: #263
Approved by: giuseppe
ostree-grub-generator can be used to customize
the generated grub.cfg file. Compile time
decision ostree-grub-generator vs grub2-mkconfig
can be overwritten with the OSTREE_GRUB2_EXEC
envvar - useful for auto tests and OS installers.
Why this alternative approach:
1) The current approach is less flexible than using a
custom 'ostree-grub-generator' script. Each system can
adjust this script for its needs, instead of using the
hardcoded values from ostree-bootloader-grub2.c.
2) Too much overhead on embedded to generate grub.cfg
via /etc/grub.d/ configuration files. It is still
possible to do so, even with this patch applied.
No need to install grub2 package on a target device.
3) The grub2-mkconfig code path has other issues:
https://bugzilla.gnome.org/show_bug.cgi?id=761180
Task: https://bugzilla.gnome.org/show_bug.cgi?id=762220Closes: #228
Approved by: cgwalters
If installed-tests are disabled, it would normally be a static
(convenience) library, which isn't something we can LD_PRELOAD.
Signed-off-by: Simon McVittie <smcv@debian.org>
Closes: #232
Approved by: cgwalters
Previously, the build-time tests would only pass if the g-i bindings to
OSTree were already installed, with a reasonably similar version.
Signed-off-by: Simon McVittie <smcv@debian.org>
Closes: #232
Approved by: cgwalters
Otherwise $(installed_testdir) is empty so we try to put content in
`/`, which I noticed when trying to build an RPM (it works works fine
`sudo make install`).
This will allow daemons like rpm-ostree to detect if there are any new
deployments efficiently, in combination with using inotify. If there
are any changes, rpm-ostree wants publish them on DBus.
While we're here, add some changes to start doing unit C testing of
the sysroot API.
I want to be able to easily test the C API on actual data in an OSTree
repo. The shell `libtest.sh` has code to generate it. Bridge the two
worlds by introducing a little `libostreetest` library which has a C
API which spawns a shell that runs things in `libtest.sh`.
Yes, this is about as beautiful as it sounds, which is to say, it's
not. But it works!
Note while we were here, I realized we were actually now creating
*two* tmpdirs per test in `make check` because the tap driver was
already doing that. Unify it so we know the C code can rely on it.
OSTree's code for testing predates the `glib-tap.mk` making its
way into GLib. Let's switch to it, as it provides a number
of advantages.
By far the biggest advantage is that `make check` can start to run
most of the tests *in addition* to having them work installed.
This commit keeps the installed tests working, but `make check` turns
out to be really broken because...our TAP usage has bitrotted to say
the least. Fix that all up.
Do some hacks so that the tests work uninstalled as well - in
particular, `glib-tap.mk` and the bits encoded into
`g_test_build_filename()` assume *recursive* Automake (blah). Work
around that by creating a symlink when installed to loop back.
If the average object size is greater than 4GiB, let's assume we're
dealing with opposite endianness. I'm fairly confident no one is
going to be shipping peta- or exa- byte size ostree deltas, period.
Past the gigabyte scale you really want bittorrent or something.
This is a more flexible version of the previous
ostree_repo_write_archive_to_mtree() which took a file reference.
This has an extensible options structure, and in particular
now supports `ignore_unsupported_content`.
I plan to use this for importing Docker images which contain device
nodes. (There's no reason for container images to have those, so
we'll just ignore them).
Also here, just like the export variant, the caller is responsible for
setting up libarchive.
At the moment I'm looking at using rpm-ostree to manage RPM inputs
which can then be converted into Docker images. It's most convenient
if we can stream directly out of libostree rather than doing a
checkout + tar combination.
There are also backup/debugging etc. reasons to implement `export` as
well.
While it's not strictly tied to OSTree, let's move
https://github.com/cgwalters/rofiles-fuse in here because:
- It's *very* useful in concert with OSTree
- It's tiny
- We can reuse OSTree's test, documentation, etc. infrastructure
One thing to consider also is that at some point we could experiment
with writing a FUSE filesystem for OSTree. This could internalize a
better equivalent of `--link-checkout-speedup`, but on the other hand,
the cost of walking filesystem trees for these types of operations is
really quite small.
But if we did decide to do more FUSE things in OSTree, this is a step
towards that too.
I was working on a different test, and ended up being very confused at
the behavior where removing the last deployment didn't remove the last
`ostree/X/X/X` ref pointing to its commit.
There's no reason to special case the last undeployment AFAIK, and the
existing code handles this.
test-lzma builds a copy of the compressor and decompressor directly, so
the compiler needs access to the LZMA headers and the linker needs to
link the program with liblzma.
This test uses gpgme directly to verify the signatures, so it needs to
find the gpgme headers and link with gpgme to ensure the linker can
resolve the symbols.
Having undefined (but in practice rarely changing) ordering for
`readdir()` ended up screwing us over for bootloader config
generation; see https://bugzilla.redhat.com/show_bug.cgi?id=1226520
Let's make things significantly more likely to fail more quickly in
the future if similar bugs are introduced. We accomplish this by
introducing a little `LD_PRELOAD` library that randomizes the results
of `readdir()`.
Having undefined ordering (but in practice rarely changing)
ordering for `readdir()` ended up screwing us over with respect
to bootloader config file read ordering.
Let's make things significantly more likely to fail more quickly in
the future if similar bugs are introduced. We accomplish this by
introducing a little `LD_PRELOAD` library that randomizes the results
of `readdir()`.
An OSTree user noticed that `ostree fsck` would produce `missing
object` errors in the case of interrupted pulls.
It's possible to do e.g. `ostree pull --subpath=/usr/share/rpm ...`,
which gets you just that portion of the commit. The use case for this
was being able to see what changes would appear in an update before
actually downloading all of it.
(I think this would be better covered by static deltas, but those
aren't final yet, and `--subpath` predates it)
Further, `.commitpartial` is used as a successor to the `transaction`
symlink for more precise knowledge in the case where a pull was
interrupted that we needed to resume scanning.
So it makes sense for `ostree fsck` to be aware of it.
If a system administrator happens to type `ostree admin upgrade`
multiple times, currently that will lead to a potentially corrupted
system.
I originally attempted to do locking *internally* in `libostree`, but
that didn't work out because currently a number of the commands
perform multi-step operations that all need to be serialized. All of
the current code in `ostree admin deploy` is an example.
Therefore, allow callers to perform locking, as most of the higher
level logic is presently implemented there.
At some point, we can revisit having internal locking, but it will be
difficult. A more likely approach would be similar to Java's approach
with concurrency on iterators - a "fail fast" method.
First, git doesn't do this, and whatever Linus thinks is right or
something.
Second specifically to OSTree, it's quite common to not have
intermediate commits. If one wants to reset a ref in order to prune
data after a deployment, the parentage check will fail.
Closes: https://github.com/GNOME/ostree/pull/87
Jonathan Lebon
Colin Walters
Krzesimir Nowak
Alexander Larsson
Giuseppe Scrivano
Gatis Paeglis
Simon McVittie
Dan Nicholson
Matthew Barnes
Daniel Svensson