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| author |  Jack Bates <bk874k@nottheoilrig.com> | 2016-12-06 09:56:14 -0700 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2016-12-08 14:40:30 -0800 |
| commit | 43d1948b7b84abc744227259dd1a3e8dfbb60358 (patch) | |
| tree | 2d81914e42820709d25156e6d8e817252bdecc92 /t/t4013/diff.diff_--raw_initial | |
| parent | RelNotes: spelling and phrasing fixups (diff) | |
| download | tgif-43d1948b7b84abc744227259dd1a3e8dfbb60358.tar.xz | |
diff: handle --no-abbrev in no-index case
There are two different places where the --no-abbrev option is parsed,
and two different places where SHA-1s are abbreviated. We normally parse
--no-abbrev with setup_revisions(), but in the no-index case, "git diff"
calls diff_opt_parse() directly, and diff_opt_parse() didn't handle
--no-abbrev until now. (It did handle --abbrev, however.) We normally
abbreviate SHA-1s with find_unique_abbrev(), but commit 4f03666 ("diff:
handle sha1 abbreviations outside of repository, 2016-10-20) recently
introduced a special case when you run "git diff" outside of a
repository.
setup_revisions() does also call diff_opt_parse(), but not for --abbrev
or --no-abbrev, which it handles itself. setup_revisions() sets
rev_info->abbrev, and later copies that to diff_options->abbrev. It
handles --no-abbrev by setting abbrev to zero. (This change doesn't
touch that.)
Setting abbrev to zero was broken in the outside-of-a-repository special
case, which until now resulted in a truly zero-length SHA-1, rather than
taking zero to mean do not abbreviate. The only way to trigger this bug,
however, was by running "git diff --raw" without either the --abbrev or
--no-abbrev options, because 1) without --raw it doesn't respect abbrev
(which is bizarre, but has been that way forever), 2) we silently clamp
--abbrev=0 to MINIMUM_ABBREV, and 3) --no-abbrev wasn't handled until
now.
The outside-of-a-repository case is one of three no-index cases. The
other two are when one of the files you're comparing is outside of the
repository you're in, and the --no-index option.
Signed-off-by: Jack Bates <jack@nottheoilrig.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t4013/diff.diff_--raw_initial')
| -rw-r--r-- | t/t4013/diff.diff_--raw_initial | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/t/t4013/diff.diff_--raw_initial b/t/t4013/diff.diff_--raw_initial new file mode 100644 index 0000000000..a3e978040d --- /dev/null +++ b/t/t4013/diff.diff_--raw_initial @@ -0,0 +1,6 @@ +$ git diff --raw initial +:100644 100644 35d242b... 992913c... M dir/sub +:100644 100644 01e79c3... 10a8a9f... M file0 +:000000 100644 0000000... b1e6722... A file1 +:100644 000000 01e79c3... 0000000... D file2 +$ |