Re: [BUG] log --graph corrupts patch

Jeff King [off-list ref] writes:

quoted

To make it bullet-proof, I think we'd have to actually parse the graph
structure, finding a "*" line and then accepting only an indent that
matched it.

Wow. Nerd snipe successful. This turned out to be quite tricky, but also
kind of interesting.

The last patch looks quite "interesting" ;-).  The idea is sound and
probably the execution, too, but it indeed is tricky.

Here's a series which fixes it. The meaty bits are in the final commit;
the rest is just preparatory cleanup, and adding some tests (all are
cases which I managed to break while fixing this).

  [1/7]: diff-highlight: correct test graph diagram
  [2/7]: diff-highlight: use test_tick in graph test
  [3/7]: diff-highlight: prefer "echo" to "cat" in tests
  [4/7]: diff-highlight: test interleaved parallel lines of history
  [5/7]: diff-highlight: test graphs with --color
  [6/7]: diff-highlight: factor out flush_hunk() helper
  [7/7]: diff-highlight: detect --graph by indent

 contrib/diff-highlight/DiffHighlight.pm       | 89 +++++++++++++++----
 .../diff-highlight/t/t9400-diff-highlight.sh  | 81 +++++++++++++----
 2 files changed, 133 insertions(+), 37 deletions(-)

-Peff