mirror of
https://github.com/bazel-contrib/bazel-lib
synced 2024-11-26 13:30:30 +00:00
096133e5d2
* feat: platform_transition_filegroup Lifted from https://github.com/aspect-build/gcc-toolchain/pull/8/files See also https://github.com/fmeum/rules_meta/blob/main/meta/internal/meta.bzl#L4 * test: add tests for transition filegroup
45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
"Rules for working with transitions."
|
|
|
|
def _transition_platform_impl(_, attr):
|
|
return {"//command_line_option:platforms": str(attr.target_platform)}
|
|
|
|
# Transition from any input configuration to one that includes the
|
|
# --platforms command-line flag.
|
|
_transition_platform = transition(
|
|
implementation = _transition_platform_impl,
|
|
inputs = [],
|
|
outputs = ["//command_line_option:platforms"],
|
|
)
|
|
|
|
def _platform_transition_filegroup_impl(ctx):
|
|
files = []
|
|
runfiles = ctx.runfiles()
|
|
for src in ctx.attr.srcs:
|
|
files.append(src[DefaultInfo].files)
|
|
|
|
runfiles = runfiles.merge_all([src[DefaultInfo].default_runfiles for src in ctx.attr.srcs])
|
|
return [DefaultInfo(
|
|
files = depset(transitive = files),
|
|
runfiles = runfiles,
|
|
)]
|
|
|
|
platform_transition_filegroup = rule(
|
|
_platform_transition_filegroup_impl,
|
|
attrs = {
|
|
# Required to Opt-in to the transitions feature.
|
|
"_allowlist_function_transition": attr.label(
|
|
default = "@bazel_tools//tools/allowlists/function_transition_allowlist",
|
|
),
|
|
"target_platform": attr.label(
|
|
doc = "The target platform to transition the srcs.",
|
|
mandatory = True,
|
|
),
|
|
"srcs": attr.label_list(
|
|
allow_empty = False,
|
|
cfg = _transition_platform,
|
|
doc = "The input to be transitioned to the target platform.",
|
|
),
|
|
},
|
|
doc = "Transitions the srcs to use the provided platform. The filegroup will contain artifacts for the target platform.",
|
|
)
|