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If two systems with the same name (e.g. different repo/ref) depend on the
same strata, then it will collide with systems which depend on different
artifacts from that stratum, but the same number of artifacts.
For example, if you checkout an existing branch and change the artifacts
used by one of its strata, then your local changes won't be built.
This is because the 'kids' field lists artifacts it depends on by their
cache-key, which is now no longer sufficient to uniquely identify
artifacts. The same number of artifacts issue is from it listing cache
keys multiple times.
The fix for this is to include the artifact name, so the 'kids' field is
now a list of dicts, with artifact name and cache key.
This is a dict rather than a tuple so that the generated /baserock
metadata is more readable.
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Changed the error (exception) to list all obsolete fields.
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Cross-bootstrap is a way to build baserock on an architecture that
does not currently have Baserock. It can be used by `morph
cross-bootstrap <ARCH> <REPO> <REF> <MORPH>`, and will build an artifact
that can be used as a root filesystem with a basic build environment
with a script named `native-bootstrap` which will build and install
every chunk in the system.
If done with a devel system, this will give you a suitable environment
for building a proper Baserock system.
This does not currently provide a kernel for the target architecture.
Apart from adding the cross-bootstrap plugin, it also makes the
following changes:
* Moves the lit of valid_archs into morphlib (instead of locally-scoped
in MorphologyFactory)
* BuildCommand takes an extra argument, build_env
* split BuildCommand's get_artifact_object into create_source_pool and
resolve_artifacts (plus changes things that use get_artifact_object to
use the new way)
* setup_mounts finds out whether to do so by whether build_mode is
'staging', instead of by whether the setting 'staging-chroot' is true.
* Makes ChunkBuilder's get_sources use the
morphlib.builder2.extract_sources() method, and moved
set_mtime_recursively into morphlib.builder2, since it's not currently
used anywhere else.
* moved ChunkBuilder's get_commands into the Morphology class (plus
changes to anything that used get_commands)
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Add tests for cmake and qmake build systems
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Removed trailing comma, corrected copyright year, used #pragma: no cover
to exclude the exception class form coverage and allow ./check full to run.
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Added a new test case that tests for new error from previous commit that
changed the warning to an error when building an empty stratum.
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The absolute one made the test suite fail in my VM, and is not the
right thing to do anyway. $DESTDIR/usr/bin and $DESTDIR/bin are meant
to be the same directory here, not $DESTDIR/usr/bin and /bin.
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We can no longer build strata individually because we don't know
what architecture they are for.
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When building a stratum artifact it's easy to only include chunks that
were built in 'staging' mode. Constructing the staging area doesn't use
that code path, though, so we need an extra hack to filter out those
artifacts while building.
It may be neater to express stratum build-depends as actual
dependencies on the stratum artifact, rather than each of its
constituent chunks as we do now.
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This is necessary so that the build-essential stratum doesn't end up
containing three different compilers.
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Morph no longer supports setting the prefix using the --prefix
argument / setting. This was only used in tests and during bootstrap.
If a chunk build-depends on a chunk within a stratum which has
a custom prefix, that prefix is appended to the PATH in the build
environment.
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Allowed values:
staging: build with a staging chroot (default)
test: build with the host's tools
bootstrap: build with the host's tools, and do not include this
chunk in the final stratum artifact
In the past, 'normal mode' has been used to describe building a chunk
with the host's tools. We don't want that mode to ever be used,
because it is a huge hole in reproducability, but we need to keep it
around to avoid making Morph's cmdtest suite depend on Baserock.
Hopefully naming it 'test' should discourage potential abusers.
It is unfortunate that the build tests now take a separate code path
compared to real-world usage of Morph. However, this is necessary to
avoid a circular dependency between Morph's test suite and the
build-essential stratum in Baserock.
We do whole-build testing of Baserock, too, so the 'staging' code path
is still tested outside of Morph. However, testing a staging area
requires populating it with at minimum a working shell, and this is a
bit too complex to go in Morph's test suite.
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This is mainly to fix bootstrap.
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Building invididual chunks is bad because we have no idea what
build mode to use. Building individual strata would work, but all of
the stratum's build dependencies would need to be built first so there
would be little time saved in any case. There is also no way to test
them beyond checking that the build was successful.
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We can't rely on this being possible any more. It was mostly only used
for testing in any case.
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