The unified diff format allows one-line ranges to be abbreviated by omiting the size. The hunk header "@@ -10,1 +10,1 @@" can be expressed as "@@ -10 +10 @@", but this wasn't properly parsed in all cases.
Such abbreviated hunk headers are generated when a one-line change (add, remove or modify) appears without context; for example because the file is a one-liner itself or because GIT_DIFF_OPTS was set to '-u0'. If the user then runs 'git add -i' and enters the 'patch' command for that file, perl complains about undefined variables.
Signed-off-by: Jean-Luc Herren <jlh@gmx.ch> --- git-add--interactive.perl | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-)
Show changes to git-add--interactive.perl +5 −6
diff --git a/git-add--interactive.perl b/git-add--interactive.perl index be68814..15b3f5b 100755 --- a/git-add--interactive.perl +++ b/git-add--interactive.perl @@ -360,7 +360,9 @@ sub hunk_splittable { sub parse_hunk_header { my ($line) = @_; my ($o_ofs, $o_cnt, $n_ofs, $n_cnt) = - $line =~ /^@@ -(\d+)(?:,(\d+)) \+(\d+)(?:,(\d+)) @@/; + $line =~ /^@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/; + $o_cnt = 1 unless defined $o_cnt; + $n_cnt = 1 unless defined $n_cnt; return ($o_ofs, $o_cnt, $n_ofs, $n_cnt); } @@ -705,9 +707,6 @@ sub patch_update_cmd { parse_hunk_header($text->[0]); if (!$_->{USE}) { - if (!defined $o_cnt) { $o_cnt = 1; } - if (!defined $n_cnt) { $n_cnt = 1; } - # We would have added ($n_cnt - $o_cnt) lines # to the postimage if we were to use this hunk, # but we didn't. So the line number that the next @@ -719,10 +718,10 @@ sub patch_update_cmd { if ($n_lofs) { $n_ofs += $n_lofs; $text->[0] = ("@@ -$o_ofs" . - ((defined $o_cnt) + (($o_cnt != 1) ? ",$o_cnt" : '') . " +$n_ofs" . - ((defined $n_cnt) + (($n_cnt != 1) ? ",$n_cnt" : '') . " @@\n"); }
-- 1.5.3.4