* [PATCH] view: perform highlighting for space-prefixed diffs
@ 2019-05-16 1:29 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2019-05-16 1:29 UTC (permalink / raw)
To: meta
"git format-patch --interdiff" and similar can prefix diffs
with leading white space. Teach our diff parser to account
for it and set appropriate CSS classes for them.
---
lib/PublicInbox/View.pm | 4 +++-
lib/PublicInbox/ViewDiff.pm | 6 ++++++
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 47a2046..35e171b 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -568,7 +568,9 @@ sub add_text_body {
# always support diff-highlighting, but we can't linkify hunk
# headers for solver unless some coderepo are configured:
my $diff;
- if ($s =~ /^(?:diff|---|\+{3}) /ms) {
+ if ($s =~ /^([ \t]*)(?:diff|---|\+{3}) /ms) {
+ $ctx->{-dpfx} = $1 if $1; # for format-patch --interdiff output
+
# diffstat anchors do not link across attachments or messages:
$idx[0] = $upfx . $idx[0] if $upfx ne '';
$ctx->{-apfx} = join('/', @idx);
diff --git a/lib/PublicInbox/ViewDiff.pm b/lib/PublicInbox/ViewDiff.pm
index 6b8d943..e9cfc36 100644
--- a/lib/PublicInbox/ViewDiff.pm
+++ b/lib/PublicInbox/ViewDiff.pm
@@ -141,8 +141,14 @@ sub flush_diff ($$$) {
my $spfx = $ctx->{-spfx};
my $state = DSTATE_INIT;
my $dctx = { Q => '' }; # {}, keys: oid_a, oid_b, path_a, path_b
+ my $dpfx = $ctx->{-dpfx}; # leading spaces for interdiff
+ my $dpfx_re = qr/\A$dpfx/ if defined $dpfx;
foreach my $s (@$diff) {
+ if (defined($dpfx)) {
+ $s =~ s/$dpfx_re//;
+ $$dst .= $dpfx;
+ }
if ($s =~ /^---$/) {
to_state($dst, $state, DSTATE_STAT);
$$dst .= $s;
--
EW
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2019-05-16 1:29 [PATCH] view: perform highlighting for space-prefixed diffs Eric Wong
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