| """This module defines utilities shared between the repository rules in this directory.""" |
| |
| def fail_if_nonzero_status(exec_result, msg): |
| """Fails if the result of the given exec_result contains a non-zero return code. |
| |
| This function takes an exec_result[1] structure returned by the repository_ctx.execute[2] |
| method, and fails if the return code is non-zero. It prints out the given msg and the failed |
| command's exit code, stdout and stderr. |
| |
| [1] https://bazel.build/rules/lib/exec_result |
| [2] https://bazel.build/rules/lib/repository_ctx#execute |
| |
| Args: |
| exec_result: An exec_result. |
| msg: A message describing the command that failed. |
| """ |
| |
| if exec_result.return_code != 0: |
| fail("%s\nExit code: %d\nStdout:\n%s\nStderr:\n%s\n" % ( |
| msg, |
| exec_result.return_code, |
| exec_result.stdout, |
| exec_result.stderr, |
| )) |
