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add-interactive: handle deletion of empty files

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Usually we show deletion as a big hunk deleting all of the
file's text. However, for files with no content, the diff
shows just the 'deleted file mode ...' line. This patch
cause "add -p" (and related commands) to recognize that line
and explicitly ask about deleting the file.

We only add the "stage this deletion" hunk for empty files,
since other files will already ask about the big content
deletion hunk. We could also change those files to simply
display "stage this deletion", but showing the actual
deleted content is probably what an interactive user wants.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2009-10-27 20:52:57 -04:00
committed by Junio C Hamano
parent 78d553b7d7
commit 24ab81ae4d
2 changed files with 30 additions and 5 deletions
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18
git-add--interactive.perl
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@ -731,14 +731,17 @@ sub parse_diff_header {
my $head = { TEXT => [], DISPLAY => [], TYPE => 'header' };
my $mode = { TEXT => [], DISPLAY => [], TYPE => 'mode' };
my $deletion = { TEXT => [], DISPLAY => [], TYPE => 'deletion' };
for (my $i = 0; $i < @{$src->{TEXT}}; $i++) {
my $dest = $src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ?
$mode : $head;
my $dest =
$src->{TEXT}->[$i] =~ /^(old|new) mode (\d+)$/ ? $mode :
$src->{TEXT}->[$i] =~ /^deleted file/ ? $deletion :
$head;
push @{$dest->{TEXT}}, $src->{TEXT}->[$i];
push @{$dest->{DISPLAY}}, $src->{DISPLAY}->[$i];
}
return ($head, $mode);
return ($head, $mode, $deletion);
}
sub hunk_splittable {
@ -1206,7 +1209,7 @@ sub patch_update_file {
my ($ix, $num);
my $path = shift;
my ($head, @hunk) = parse_diff($path);
($head, my $mode) = parse_diff_header($head);
($head, my $mode, my $deletion) = parse_diff_header($head);
for (@{$head->{DISPLAY}}) {
print;
}
@ -1214,6 +1217,9 @@ sub patch_update_file {
if (@{$mode->{TEXT}}) {
unshift @hunk, $mode;
}
if (@{$deletion->{TEXT}} && !@hunk) {
@hunk = ($deletion);
}
$num = scalar @hunk;
$ix = 0;
@ -1267,7 +1273,9 @@ sub patch_update_file {
print;
}
print colored $prompt_color, $patch_mode_flavour{VERB},
($hunk[$ix]{TYPE} eq 'mode' ? ' mode change' : ' this hunk'),
($hunk[$ix]{TYPE} eq 'mode' ? ' mode change' :
$hunk[$ix]{TYPE} eq 'deletion' ? ' deletion' :
' this hunk'),
$patch_mode_flavour{TARGET},
" [y,n,q,a,d,/$other,?]? ";
my $line = prompt_single_character;