Change the assembler-commit to be conditional on checkpoints, just like
we already do for stages. This means, assembler output is not
automatically committed, but only if you requested so via a checkpoint.
With this in place we can start sharing caches in osbuild-composer. The
only thing in the cache will be sources as well as checkpointed stages.
We can start checkpointing known pipelines and thus make use of the
cache. Furthermore, we can cache sources, as long as we do not fetch an
unbound set of RPMs. However, our RPM set is currently static, so this
should not be an issue. Nevertheless, it is up to Composer to decide
when to enable the cache.
Using `[]` as default value for arguments makes `pylint` complain. The
reason is that it creates an array statically at the time the function
is parsed, rather than dynamically on invocation of the function. This
means, when you append to this array, you change the global instance and
every further invocation of that function works on this modified array.
While our use-cases are safe, this is indeed a common pitfall. Lets
avoid using this and resort to `None` instead.
This silences a lot of warnings from pylint about "dangerous use of []".
Drop the --build-env command-line argument. It is not used by anything.
Furthermore, our manifests now allow embedding build-environments, so
there is little reason to continue supporting this.
In case `--libdir` is not specified on the command line, and thus
`args.libdir` is `None`, pass the standard `/usr/lib/osbuild` path
to the meta.Index constructor. Otherwise no schema information can
be found.
This option will print the manifest in JSON, including all the ids,
to stdout. It will not build the pipeline, but the input manifest
will be validated and if that fails the validation result will be
return in JSON.
Validate the options of stages and assembler of the pipeline
before running it. A validation failure will abort the run.
Errors are printed in human readable unless `--json` is passed;
For each error a human readable message together with a path
to the object with the error is given. The syntax of the path
is such it can be used via the `jq` command to select the item.
Split off the argument parser as well as the manifest parser into
helper functions. Drop the pylint hints from the main function now that
it is considerably smaller.
This extracts the CLI entrypoint into `main_cli.py` and prepares the
codebase for the introduction of additional entrypoints. This should
not contain any functional changes.
The idea behind this is to add `main_api.py` (and maybe more in the
future), which will be similar to `main_cli.py` but contain the
`osbuild-api` entrypoint. This will make all entrypoints nicely symetric
and the only difference will be `setup.py` selecting the right
entrypoint for each executable, as well as `__main__.py` selecting the
entrypoint for the module itself (which we will keep to the CLI for
compatibility).
