THIS IS A TEST INSTANCE ONLY! REPOSITORIES CAN BE DELETED AT ANY TIME!

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Merge branch 'tb/log-G-binary'

"git log -G<regex>" looked for a hunk in the "git log -p" patch
output that contained a string that matches the given pattern.
Optimize this code to ignore binary files, which by default will
not show any hunk that would match any pattern (unless textconv or
the --text option is in effect, that is).

* tb/log-G-binary:
  log -G: ignore binary files
tags/v2.21.0-rc0
Junio C Hamano 10 months ago
parent
commit
ecdc7cbbac
4 changed files with 48 additions and 1 deletions
  1. +5
    -0
      Documentation/diff-options.txt
  2. +2
    -1
      Documentation/gitdiffcore.txt
  3. +6
    -0
      diffcore-pickaxe.c
  4. +35
    -0
      t/t4209-log-pickaxe.sh

+ 5
- 0
Documentation/diff-options.txt View File

@@ -524,6 +524,8 @@ struct), and want to know the history of that block since it first
came into being: use the feature iteratively to feed the interesting
block in the preimage back into `-S`, and keep going until you get the
very first version of the block.
+
Binary files are searched as well.

-G<regex>::
Look for differences whose patch text contains added/removed
@@ -543,6 +545,9 @@ While `git log -G"regexec\(regexp"` will show this commit, `git log
-S"regexec\(regexp" --pickaxe-regex` will not (because the number of
occurrences of that string did not change).
+
Unless `--text` is supplied patches of binary files without a textconv
filter will be ignored.
+
See the 'pickaxe' entry in linkgit:gitdiffcore[7] for more
information.



+ 2
- 1
Documentation/gitdiffcore.txt View File

@@ -242,7 +242,8 @@ textual diff has an added or a deleted line that matches the given
regular expression. This means that it will detect in-file (or what
rename-detection considers the same file) moves, which is noise. The
implementation runs diff twice and greps, and this can be quite
expensive.
expensive. To speed things up binary files without textconv filters
will be ignored.

When `-S` or `-G` are used without `--pickaxe-all`, only filepairs
that match their respective criterion are kept in the output. When


+ 6
- 0
diffcore-pickaxe.c View File

@@ -154,6 +154,12 @@ static int pickaxe_match(struct diff_filepair *p, struct diff_options *o,
if (textconv_one == textconv_two && diff_unmodified_pair(p))
return 0;

if ((o->pickaxe_opts & DIFF_PICKAXE_KIND_G) &&
!o->flags.text &&
((!textconv_one && diff_filespec_is_binary(o->repo, p->one)) ||
(!textconv_two && diff_filespec_is_binary(o->repo, p->two))))
return 0;

mf1.size = fill_textconv(o->repo, textconv_one, p->one, &mf1.ptr);
mf2.size = fill_textconv(o->repo, textconv_two, p->two, &mf2.ptr);



+ 35
- 0
t/t4209-log-pickaxe.sh View File

@@ -106,4 +106,39 @@ test_expect_success 'log -S --no-textconv (missing textconv tool)' '
rm .gitattributes
'

test_expect_success 'setup log -[GS] binary & --text' '
git checkout --orphan GS-binary-and-text &&
git read-tree --empty &&
printf "a\na\0a\n" >data.bin &&
git add data.bin &&
git commit -m "create binary file" data.bin &&
printf "a\na\0a\n" >>data.bin &&
git commit -m "modify binary file" data.bin &&
git rm data.bin &&
git commit -m "delete binary file" data.bin &&
git log >full-log
'

test_expect_success 'log -G ignores binary files' '
git log -Ga >log &&
test_must_be_empty log
'

test_expect_success 'log -G looks into binary files with -a' '
git log -a -Ga >log &&
test_cmp log full-log
'

test_expect_success 'log -G looks into binary files with textconv filter' '
test_when_finished "rm .gitattributes" &&
echo "* diff=bin" >.gitattributes &&
git -c diff.bin.textconv=cat log -Ga >log &&
test_cmp log full-log
'

test_expect_success 'log -S looks into binary files' '
git log -Sa >log &&
test_cmp log full-log
'

test_done

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