Adds a new module `modules` with two helper functions for module
extensions:
* `use_all_repos` makes it easy to return an appropriate
`extension_metadata` from a module extension (if supported) to
indicate that all repositories generated by the extension should be
imported via `use_repo`.
* `as_extension` turns a WORKSPACE macro into a module extension that
uses `use_all_repos` to automate the generation of `use_repo` calls.
* Enable unittest.suite to accept partial calls of rules
This permits using `unittest.suite` with test rules that have nondefault
attributes, while retaining compatibility with current usage.
For instance, this permits setting a `timeout` on each test in a
`unittest.suite`. Previously, all tests in a `unittest.suite` would
have the default timeout, with no good way to alter this. This
made it hard to eliminate all the warnings produced from using the
`--test_verbose_timeout_warnings` bazel option.
While timeouts were the motivation, the solution here is not specific
to timeouts. It will permit arbitrary additional arguments to the test
rules in a `unittest.suite`.
Fixes #98
* Respond to review feedback.
* Document a breaking change in bazel that this code needs to be aware of.
Without this change, evaluating bzl with strict dependencies results in an error.
[`load(":new_sets.bzl", _sets = "sets")`](560d7b2359/lib/sets.bzl (L17)) results in `No such file or directory: 'third_party/bazel_skylib/lib/new_sets.bzl`
* Add sets.is_set() to test whether an arbitrary object is a set.
Since using sets requires special API, it can be useful to determine
whether an object is a set so special handling can be used.
For example, if a method wants to be able to take a list or a set.
* add empty CHANGELOG.md to try to reuse bazel release.sh
* checkpoint a new distribution method
* Update CHANGELOG.
* checkpoint relnew
* get the tarball working
* fix visibilyt
* whitespace
* punctuation typos
* buildify
* linty fresh
Most notably, this renames/moves a few important identifiers:
//:skylark_library.bzl -> //:bzl_library.bzl
skylark_library -> bzl_library
SkylarkLibraryInfo -> StarlarkLibraryInfo
When creating a skylark_library A anywhere downstream, if a bzl file in A loads() any of the bzl libraries in this package, then the bzl files in this package will have to be in deps as a skylark_library. The current public filegroup cannot be used as a dependency of skylark_libraries.
Even though it's not great to use type checks, they are frequently useful for
checking input types of macros.
Because there is no standard way of checking types, at least 2 types of checks
are used:
- `type(foo) == type([])`
- `type(foo) == "list"`
The first option is not very readable and the second option seem to be relying
on an Bazel implementation detail. Encapsulating type checks into this library
enables consistent and easy to understand type checking without explicitly
relying on implementation details.
This version is hash-based (implemented on top of a dictionary) and doesn't suffer the performance problems of the current version. It will eventually replace the old one after a deprecation period.
