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"""Repository rule for Git autoconfiguration.
`git_configure` depends on the following environment variables:
* `PYTHON_BIN_PATH`: location of python binary.
"""
_PYTHON_BIN_PATH = "PYTHON_BIN_PATH"
def _fail(msg):
"""Output failure message when auto configuration fails."""
red = "\033[0;31m"
no_color = "\033[0m"
fail("%sGit Configuration Error:%s %s\n" % (red, no_color, msg))
def _get_python_bin(repository_ctx):
"""Gets the python bin path."""
python_bin = repository_ctx.os.environ.get(_PYTHON_BIN_PATH)
if python_bin != None:
return python_bin
python_bin_path = repository_ctx.which("python3")
if python_bin_path != None:
return str(python_bin_path)
python_bin_path = repository_ctx.which("python")
if python_bin_path != None:
return str(python_bin_path)
_fail("Cannot find python in PATH, please make sure " +
"python is installed and add its directory in PATH, or --define " +
"%s='/something/else'.\nPATH=%s" % (
_PYTHON_BIN_PATH,
repository_ctx.os.environ.get("PATH", ""),
))
def _git_conf_impl(repository_ctx):
repository_ctx.template(
"BUILD",
Label("//third_party/git:BUILD.tpl"),
)
tensorflow_root_path = str(repository_ctx.path(
Label("@org_tensorflow//:BUILD"),
))[:-len("BUILD")]
python_script_path = repository_ctx.path(
Label("@org_tensorflow//tensorflow/tools/git:gen_git_source.py"),
)
generated_files_path = repository_ctx.path("gen")
r = repository_ctx.execute(
["test", "-f", "%s/.git/logs/HEAD" % tensorflow_root_path],
)
if r.return_code == 0:
unused_var = repository_ctx.path(Label("//:.git/HEAD")) # pylint: disable=unused-variable
result = repository_ctx.execute([
_get_python_bin(repository_ctx),
python_script_path,
"--configure",
tensorflow_root_path,
"--gen_root_path",
generated_files_path,
], quiet = False)
if not result.return_code == 0:
_fail(result.stderr)
git_configure = repository_rule(
implementation = _git_conf_impl,
environ = [
_PYTHON_BIN_PATH,
],
)
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