mirror of
https://github.com/bazel-contrib/bazel-lib
synced 2024-11-25 11:32:33 +00:00
35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
"""A simple rule that generates and provides a DefaultOutput with some files"""
|
|
|
|
def _generate_outputs_impl(ctx):
|
|
if len(ctx.attr.output_files) != len(ctx.attr.output_contents):
|
|
fail("Number of output_files must match number of output_contents")
|
|
outputs = []
|
|
for i, file in enumerate(ctx.attr.output_files):
|
|
content = ctx.attr.output_contents[i]
|
|
out = ctx.actions.declare_file(file)
|
|
|
|
# ctx.actions.write creates a FileWriteAction which uses UTF-8 encoding.
|
|
ctx.actions.write(
|
|
output = out,
|
|
content = content,
|
|
)
|
|
outputs.append(out)
|
|
|
|
provide = []
|
|
if ctx.attr.output_group:
|
|
kwargs = {ctx.attr.output_group: depset(outputs)}
|
|
provide.append(OutputGroupInfo(**kwargs))
|
|
else:
|
|
provide.append(DefaultInfo(files = depset(outputs)))
|
|
return provide
|
|
|
|
generate_outputs = rule(
|
|
implementation = _generate_outputs_impl,
|
|
provides = [DefaultInfo],
|
|
attrs = {
|
|
"output_files": attr.string_list(),
|
|
"output_contents": attr.string_list(),
|
|
"output_group": attr.string(),
|
|
},
|
|
)
|