cram/tools/build_rules/cp.bzl

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2022-07-29 05:38:26 +00:00
load("@bazel_skylib//rules:copy_file.bzl",
"copy_file",
)
def cp(name, src, **kwargs):
"""A slightly more convenient cp() rule. Name and out should always be the same."""
rule_name = name.replace(".", "_").replace(":", "/").replace("//", "").replace("/", "_")
copy_file(
name = rule_name,
src = src,
out = name,
**kwargs
)
return rule_name
def _copy_filegroup_impl(ctx):
all_outputs = []
for t in ctx.attr.deps:
t_prefix = t.label.package
for f in t.files.to_list():
# Strip out the source prefix...
path = f.short_path.replace(t_prefix + "/", "")
out = ctx.actions.declare_file(path)
print(ctx.attr.name, t.label, f, " => ", path)
all_outputs += [out]
ctx.actions.run_shell(
outputs=[out],
inputs=depset([f]),
arguments=[f.path, out.path],
command="cp $1 $2"
)
return [
DefaultInfo(
files=depset(all_outputs),
runfiles=ctx.runfiles(files=all_outputs))
]
copy_filegroups = rule(
implementation=_copy_filegroup_impl,
attrs={
"deps": attr.label_list(),
},
)