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The manual `std::mem::drop()` bits are ugly; while we can do
function pointers from Rust to C++, let's just add the obvious
high level wrapper in Rust that accepts a `FnOnce()`.
Note in one instance we directly pass a function pointer which
is quite clean.
I was thinking about privilege separation today with
systemd units, and that led me to the problem of "lifecycle binding".
We really want e.g. `systemctl stop rpm-ostreed` to kill any
separate systemd units we're managing.
systemd already has a mechanism for this with `BindsTo=`.
And then I realized we weren't doing this for the systemd-tmpfiles
invocations in the `live.rs` code.
Generalize this into a small `isolation` module that fixes this
and several other things at the same time. I'd like to build
on this to further improve our multi-process isolation story
later.
This code really makes sense as a method on the treefile.
And when that's done, we no longer need to expose
`get_postprocess_script()` via cxx, so we can return a nicely
Rust native `Option<&mut File>`.
Port add-files handling to Rust.
Note that there's one very magical line of diff here worth calling out:
We dropped an interface from the cxxrs bridge, because both sides
are now Rust! The treefile code can directly return an `&mut File` reference
instead of needing to pass the raw fd as `i32`.
The ugly C code for this turns into shorter Rust with a unit
test, a lot less allocation (notice how we don't malloc `NUL` terminated
strings in so many places).
It turns out there's a naming clash between `to_string()` here in
Rust *and* introspection is incorrectly associating the method
with `ostree::Deployment` because of the naming prefix.
The compose tests are expensive; each run involves running
all the `%post` scripts and `dracut` etc. This is definitely
a source of timeouts in CCI.
Remove `test-boot-location-modules.sh` - it's the default
now and is used by FCOS. Add dedicated script where we can
test all these things by default after a `cosa build`.
This aims to move the compose tests to only cover bits *not*
in cosa like the non-unified-core path.
Where I stalled out before is this file has `pkg-add foo`, but
now that we have the `foo` package pre-built we can move all
this stuff into `misc.sh`.
I dropped the YAML parsing of `--version` because we don't
have python. This is related to
https://github.com/coreos/coreos-assembler/issues/1645
I don't like the use of `HY_GLOB` in the lockfile package matching. We
have all the information in the Rust object, so it's silly to condense
that to a single string in a hashmap.
Fix this by returning the `LockfileConfig` object itself and then adding
a function to fetch the list of locked packages. This allows the C++
side to see all the individual fields which makes filtering trivial.
The next step is moving all the code which needs the lockfile to Rust.
Then we can drop the shared `LockedPackage` type.
(I did start on converting `find_locked_packages`, though it requires
adding bindings for all the `HyQuery` stuff, which... isn't great (and
also runs into the fact that `hy_query_run` needs to return a
GPtrArray). I think instead of a 1:1 mapping, we'll probably want the
libdnf-sys API wrappers to provide some sugar for the common paths.)
In FCOS, we use "override" lockfiles to pin packages to certain
versions. Right now, we have separate overrides for each base arch we
(eventually want to) support. But that makes maintaining the overrides
cumbersome because of all the duplication.
Let's allow lockfiles to specify only the `evr` of a package, which is
just as good for FCOS, and means that we'll only have to maintain a
single override file for all the architectures.
Same motivation as https://github.com/coreos/bootupd/pull/163
Effectively what we're doing here is creating a human-readable subset
of the stack trace. This is nicer than having the calling functions
add with_context() because it's more verbose (gets duplicative at
each call site), easy to forget, etc.
This is a major downside of reworking and generating new CI
flows, it's super easy to lose testing what you intend to.
Also, we clearly need to figure out a flow where this is shared
across repos, since I don't want to copy-paste this into e.g. ostree too.
That's https://github.com/coreos/fedora-coreos-tracker/issues/263
Prep for more oxidation work. One notable improvement here is that about half
of the callers of the mega function `rpmostree_deployment_get_layered_info`
only wanted the base information, not the layered package lists
for example - so we were passing 4 `NULL`s to ignore those.
This Rust API returns a simple shared struct instead for those
cases. I also changed things so that `base_commit` is always
set, avoiding the callers needing to do that.
OK I think it's time. This exposes the `apply-live` functionality
as implicitly stable, but specific to the package install case.
I'd like to add more intelligence to `apply-live` around separating
pure "additions" (as in this case) versus package (file) changes.
The change here doesn't try to do that; the implementation is
incredibly simple, we just have the client chain together the two
distinct transactions.
There's a huge difference between live updates that change
existing things, versus simply adding new packages (files).
The latter is really quite safe, and live layering is one
of the most requested features.
Continuing the momentum to use kola ext tests.
One obvious benefit of this as the porting continues
is that we can share our built test RPMs across
different tests, e.g. we can have a `testdaemon` package
instead of a `test-livefs-service` package.
It's always nice when apps provide useful hints about other commands you
may be interested in.
For instance, if they've done `rpm-ostree override replace/remove`,
let's be helpful and tell users that they can use `rpm-ostree override
reset` to unpin packages.
