def callback(
*,
name: Optional[str] = None,
deps: Sequence[str] = (),
impl: Callable = lambda _: None,
out: Union[str, Sequence[str]] = (),
do_not_symlink: bool = False,
do_not_cache: bool = False,
):
build_root = make_callback.build_root
if build_root is None:
raise BuildException(
"Rules files can only define functions, not invoke callback()"
)
if isinstance(out, str):
out = [out]
def wrapped_impl(ctx):
ctx.add_deps(deps)
return impl(ctx)
rule = Rule(
name=name,
location=build_root,
impl=wrapped_impl,
outputs=[normalize_path(build_root, output) for output in out],
do_not_symlink=do_not_symlink,
do_not_cache=do_not_cache,
)
for output in rule.outputs:
add_target_rule(output, rule)
if name is not None:
add_target_rule(":" + name, rule)
return f":{name}"
def callback(
*,
name: Optional[str] = None,
deps: Sequence[str] = (),
impl: Callable,
out: Union[str, Sequence[str]] = (),
do_not_symlink: bool = False,
):
build_root = make_callback.build_root
if build_root is None:
raise BuildException(
"Rules files can only define functions, not invoke callback()")
if isinstance(out, str):
out = [out]
rule = Rule(
name=name,
location=build_root,
deps=[
dep if dep.startswith(":") else normalize_path(
repo_root, build_root, dep) for dep in deps
],
impl=impl,
outputs=[
normalize_path(repo_root, build_root, output) for output in out
],
do_not_symlink=do_not_symlink,
)
for output in rule.outputs:
add_target_rule(output, rule)
if name is not None:
add_target_rule(":" + name, rule)
return f":{name}"