| #!/usr/bin/env python3 |
| |
| # `llvm-cov show` prints grouped subviews (e.g. for generic functions) in an |
| # unstable order, which is inconvenient when checking output snapshots with |
| # `diff`. To work around that, this script detects consecutive subviews in its |
| # piped input, and sorts them while preserving their contents. |
| |
| from __future__ import print_function |
| |
| import sys |
| |
| |
| def main(): |
| subviews = [] |
| |
| def flush_subviews(): |
| if not subviews: |
| return |
| |
| # The last "subview" should be just a boundary line on its own, so |
| # temporarily remove it before sorting the accumulated subviews. |
| terminator = subviews.pop() |
| subviews.sort() |
| subviews.append(terminator) |
| |
| for view in subviews: |
| for line in view: |
| print(line, end="") |
| |
| subviews.clear() |
| |
| for line in sys.stdin: |
| if line.startswith(" ------------------"): |
| # This is a subview boundary line, so start a new subview. |
| subviews.append([line]) |
| elif line.startswith(" |"): |
| # Add this line to the current subview. |
| subviews[-1].append(line) |
| else: |
| # This line is not part of a subview, so sort and print any |
| # accumulated subviews, and then print the line as-is. |
| flush_subviews() |
| print(line, end="") |
| |
| flush_subviews() |
| assert not subviews |
| |
| |
| if __name__ == "__main__": |
| main() |
