[PATCH v4 3/3] diff-highlight: add support for --graph output
Signed-off-by: Brian Henderson <henderson.bj@gmail.com>
---
contrib/diff-highlight/diff-highlight | 19 +++++++++++++------
contrib/diff-highlight/t/t9400-diff-highlight.sh | 2 +-
2 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/contrib/diff-highlight/diff-highlight b/contrib/diff-highlight/diff-highlight
index ffefc31..9280c88 100755
--- a/contrib/diff-highlight/diff-highlight
+++ b/contrib/diff-highlight/diff-highlight
@@ -21,6 +21,10 @@ my $RESET = "\x1b[m";
my $COLOR = qr/\x1b\[[0-9;]*m/;
my $BORING = qr/$COLOR|\s/;
+# The patch portion of git log -p --graph should only ever have preceding | and
+# not / or \ as merge history only shows up on the commit line.
+my $GRAPH = qr/$COLOR?\|$COLOR?\s+/;
+
my @removed;
my @added;
my $in_hunk;
@@ -32,12 +36,12 @@ $SIG{PIPE} = 'DEFAULT';
while (<>) {
if (!$in_hunk) {
print;
- $in_hunk = /^$COLOR*\@/;
+ $in_hunk = /^$GRAPH*$COLOR*\@/;
}
- elsif (/^$COLOR*-/) {
+ elsif (/^$GRAPH*$COLOR*-/) {
push @removed, $_;
}
- elsif (/^$COLOR*\+/) {
+ elsif (/^$GRAPH*$COLOR*\+/) {
push @added, $_;
}
else {
@@ -46,7 +50,7 @@ while (<>) {
@added = ();
print;
- $in_hunk = /^$COLOR*[\@ ]/;
+ $in_hunk = /^$GRAPH*$COLOR*[\@ ]/;
}
# Most of the time there is enough output to keep things streaming,
@@ -163,6 +167,9 @@ sub highlight_pair {
}
}
+# we split either by $COLOR or by character. This has the side effect of
+# leaving in graph cruft. It works because the graph cruft does not contain "-"
+# or "+"
sub split_line {
local $_ = shift;
return utf8::decode($_) ?
@@ -211,8 +218,8 @@ sub is_pair_interesting {
my $suffix_a = join('', @$a[($sa+1)..$#$a]);
my $suffix_b = join('', @$b[($sb+1)..$#$b]);
- return $prefix_a !~ /^$COLOR*-$BORING*$/ ||
- $prefix_b !~ /^$COLOR*\+$BORING*$/ ||
+ return $prefix_a !~ /^$GRAPH*$COLOR*-$BORING*$/ ||
+ $prefix_b !~ /^$GRAPH*$COLOR*\+$BORING*$/ ||
$suffix_a !~ /^$BORING*$/ ||
$suffix_b !~ /^$BORING*$/;
}
diff --git a/contrib/diff-highlight/t/t9400-diff-highlight.sh b/contrib/diff-highlight/t/t9400-diff-highlight.sh
index 54e11fe..e42232d 100755
--- a/contrib/diff-highlight/t/t9400-diff-highlight.sh
+++ b/contrib/diff-highlight/t/t9400-diff-highlight.sh
@@ -209,7 +209,7 @@ test_expect_failure 'diff-highlight highlights mismatched hunk size' '
# TODO add multi-byte test
-test_expect_failure 'diff-highlight works with the --graph option' '
+test_expect_success 'diff-highlight works with the --graph option' '
dh_test_setup_history &&
# topo-order so that the order of the commits is the same as with --graph
--
2.9.3
Brian Henderson <henderson.bj@gmail.com>