refactor: new manifest.bzl #94
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jjmaestro
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See bazelbuild/bazel#20369 While working on refactoring, I kept hitting rebase conflicts due to issues with the MODULE lock. I guess it's because the Bazel version in e2e tests is much lower than the current one with the fix (7.2) but still, I don't think it adds much to have the lock in e2e testing.
PR GoogleContainerTools#73 added the `_resolve` and this breaks the buildozer fix / autofix
It seemed like 75afff9 in GoogleContainerTools#47 added the new locks but as new files, that is, the old ones were left behind.
Add support for MODULE.bazel to the lock script and avoid printing an unnecessary (and annoying 😅) error when building in a "modern repo".
Add a `nolock` attribute to avoid getting annoying DEBUG messages for repos that we explicitly want to run without a lock.
* make apt/tests more readable by factoring out the parameters * add a "test suite macro" in each test file that group all of the unit tests in the file and prepends a "test suite prefix". IMHO this is better than using `unittest.suite` because we provide better naming than the automated `_test<NUMBER>` plus these better names are actual targets that can be executed one-by-one by name.
Add other nolock tests to exercise the package repos (the templates, etc).
* separate the script into a template file so it's easier to shellcheck
and syntax highlight in editors.
* shellcheck the script and remove all SC2086 warnings
("Double quote to prevent globbing and word splitting")
* improve the buildozer help messages in the copy.sh script:
* reduce duplication of buildozer command
* add a more clear autofix bazel run command that can be easily
copy-pasted
* change some of the variable names in the copy.sh template for longer,
easier to understand names (repo_name >> name, lock_label >> label)
* move repo_name and workspace_relative_path into variables to reduce
line length and improve readability
While working with some flaky mirrors and trying to figure out why they were failing I found the _fetch_package_index code a bit hard to follow so here's my attempt at streamlining it a bit: * Change the general flow of the for-loop so that we can directly set the reasons for failure in failed_attempts * Remove both integrity as an argument and as a return value since neither is ever used. * return the content of the Packages index instead of the path, since we already have the repository_context. This way we don't need rctx anywhere else. * Reword failure messages adding more context and debug information * Shorter lines and templated strings, trying to make the code easier to read and follow.
* remove the `state` "intermediary `struct`" in `package_resolution.bzl` since it wasn't used / needed. * refactor and move _set_dict from `util.bzl` to a `_package_set` method * use `dict .get()` with default values instead of the "nested `if`s" * renamed `package()` to `package_get` and make it return all package versions when the version is not specified so we can remove `_package_versions` * reordeder `(name, version, arch)` args to match the order of the index keys `(arch, name, version)`
Add testing for package_index mocking the external / side effects (downloads, decompression, etc).
The package resolution debugging that e.g. checks the package dependencies should all be within package_resolution.bzl _resolve_all() and not "leak out" returning the information that's only needed for debugging / logging. Also: * reduce the verbosity of the optional dependencies warning by just printing one message per root package instead of one per package. * break up the long lines to build the error messages and remove the "# buildifier: disable=print".
* move version constraint parsing from package_resolution to its own _parse_version_and_constraint method in version.bzl * refactor _version_relop into a compare method in version.bzl plus a VERSION_OPERATORS dict so that (1) we use the operator strings everywhere and (2) we can use the keys to validate the operators.
Previously we had:
```starlark
pkgindex = package_index.new(rctx, sources = sources, archs = manifest["archs"])
pkgresolution = package_resolution.new(index = pkgindex)
```
And none of the code of package_resolution was used anywhere but in
resolve.bzl and after initializing the `pkgindex`.
Also, it makes sense since we are building the index from the manifest
and once we have the index we use it to resolve the packages and
populate the lock.
Cleanup resolve.bzl and package_index.bzl by moving all of the manifest functionality to a separate manifest.bzl file where we now do all of the work to generate the lock: manifest parsing, validation and the package index and resolution. IMHO this is how it should be because the lock is the "frozen state" of the manifest. * _parse() parses the YAML * _from_dict validates the manifest dict and does the rest of the changes that we need to produce a manifest struct * add extra validation for e.g. duplicated architectures * _lock is the only method that's exposed to the outside and it encapsulates all of the other parts, calling _from_dict and all of the package index and resolution, to produce the lock file. * move get_dupes to util.bzl * refactor the "source" struct into the new manifest where we can now centralize a lot of the structure and logic spread across multiple parts of the code. * remove yq_toolchain_prefix since it's always "yq" and, looking at GH code search, this seems to be a copy-paste leftover from rules_js (or the other way around)... the code is always the same and it never receives a string different from "yq".
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Note
Stacked on top of #93
refactor: move all manifest parsing and validation to manifest.bzl
Cleanup
resolve.bzlandpackage_index.bzlby moving all of the manifest functionality to a separatemanifest.bzlfile where we now do all of the work to generate the lock: manifest parsing, validation and the package index and resolution. IMHO this is how it should be because the lock is the "frozen state" of the manifest._parseparses the YAML_from_dictvalidates the manifest dict and does the rest of the changes that we need to produce a manifest structadd extra validation for e.g. duplicated architectures
_lockis the only method that's exposed to the outside and it encapsulates all of the other parts, calling _from_dict and all of the package index and resolution, to produce the lock file.move
get_dupestoutil.bzlrefactor the "source" struct into the new manifest where we can now centralize a lot of the structure and logic spread across multiple parts of the code.
remove the
yq_toolchain_prefixattribute since it's always "yq" and, looking at GH code search, this seems to be a copy-paste leftover fromrules_js(or the other way around)... the code is always the same and it never receives a string different from "yq").