Fix a regression in 88f6ffc1c2 ("add -p: only bind search key if
there's more than one hunk", 2018-02-13) which is present in
2.17.0-rc*, but not 2.16.0.
In Perl regex variables like $1 always refer to the last regex
match. When the added a new regex match between the old match and the
code that was expecting its $1, the $1 variable would always become
undef.
As a result the "/" feature to search for a string in a hunk by regex
completely broke, on git.git:
$ perl -pi -e 's/Git/Tig/g' README.md
$ ./git --exec-path=$PWD add -p
[..]
Stage this hunk [y,n,q,a,d,j,J,g,/,s,e,?]? s
Split into 4 hunks.
[...]
Stage this hunk [y,n,q,a,d,j,J,g,/,s,e,?]? /Many
Use of uninitialized value $1 in string eq at /home/avar/g/git/git-add--interactive line 1568, <STDIN> line 1.
search for regex? Many
I.e. the initial "/regex" command wouldn't work, and would always emit
a warning and ask again for a regex, now it works as intended again.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
Junio: You'll want this for 2.17.0 final. I didn't have time to add
tests for this, but looking over t3701-add-interactive.sh it seems
doable. Phillip: Maybe something you'd be interested in?
git-add--interactive.perl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index d190469cd8..c1f52e457f 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1564,7 +1564,7 @@ sub patch_update_file {
error_msg __("No other hunks to search\n");
next;
}
- if ($1 eq "") {
+ if ($regex eq "") {
print colored $prompt_color, __("search for regex? ");
$regex = <STDIN>;
if (defined $regex) {
--
2.17.0.rc1.321.gba9d0f2565
