Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

If you have whitespace errors in lines you've introduced, it
can be convenient to be able to jump directly to them for
fixing.  You can't quite use "git jump diff" for this,
because though it passes arbitrary options to "git diff", it
expects to see an actual unified diff in the output.

Whereas "git diff --check" actually produces lines that look
like compiler quickfix lines already, meaning we just need
to run it and feed the output directly to the editor.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

The hunk-header regex looks for "\+\d+" to find the
post-image line numbers, but it skips the pre-image line
numbers with a simple ".*". That means we may greedily eat
the post-image numbers and match a "\+\d" further on, in the
funcname text.

For example, commit 6b9c38e has this hunk header:

  diff --git a/t/t0006-date.sh b/t/t0006-date.sh
  [...]
  @@ -50,8 +50,8 @@ check_show iso-local "$TIME" '2016-06-15 14:13:20 +0000'

If you run:

  git checkout 6b9c38e
  git jump diff HEAD^ t/

it will erroneously match "+0000" as the starting line
number and jump there, rather than line 50.

We can fix it by just making the "skip" regex non-greedy,
taking the first "+" we see, which should be the post-image
line information.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Matching the default file prefix b/ does not yield any results if config
option diff.noprefix or diff.mnemonicprefix is enabled.

Signed-off-by: Mischa POSLAWSKY <git@shiar.nl>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

This is a small script for helping your editor jump to
specific points of interest. See the README for details.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>