git clone barerepo.git srcdir
ikiwiki --rcs=git srcdir destdir
-I've fixed this initial construction case, and, based on my testing, I've also fixed the post-update executing on a new master, and ikiwiki.cgi executing on a non-existent master cases.
+I've fixed this initial construction case, and, based on my testing, I've
+also fixed the post-update executing on a new master, and ikiwiki.cgi
+executing on a non-existent master cases.
Please commit so my users stop whining at me about having clean branches to push to, the big babies.
[[!tag patch]]
+> FWIW, [[The_TOVA_Company]] apparently wants this feature (and I hope
+> I don't mind that I mention they were willing to pay someone for it,
+> but I told them I'd not done any of the work. :) )
+>
+> Code review follows, per hunk.. --[[Joey]]
+
<pre>
diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
-index cf7fbe9..a1b5ed3 100644
+index cf7fbe9..e5bafcf 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
-@@ -439,17 +439,20 @@ sub git_commit_info ($;$) {
+@@ -439,17 +439,21 @@ sub git_commit_info ($;$) {
my @opts;
push @opts, "--max-count=$num" if defined $num;
-+ my @raw_lines;
-+ my @ci;
-
+-
- my @raw_lines = run_or_die('git', 'log', @opts,
- '--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
- '-r', $sha1, '--', '.');
-+ if (-e $config{srcdir} . '/.git/refs/heads/' . $config{gitmaster_branch}) {
-+ @raw_lines = run_or_die('git', 'log', @opts,
-+ '--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
-+ '-r', $sha1, '--', '.');
-
-- my @ci;
+-
++ my @raw_lines;
+ my @ci;
- while (my $parsed = parse_diff_tree(\@raw_lines)) {
- push @ci, $parsed;
- }
++
++ # Test to see if branch actually exists yet.
++ if (run_or_non('git', 'show-ref', '--quiet', '--verify', '--', 'refs/heads/' . $config{gitmaster_branch}) ) {
++ @raw_lines = run_or_die('git', 'log', @opts,
++ '--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
++ '-r', $sha1, '--', '.');
++
+ while (my $parsed = parse_diff_tree(\@raw_lines)) {
+ push @ci, $parsed;
+ }
return wantarray ? @ci : $ci[0];
}
-@@ -474,7 +477,10 @@ sub rcs_update () {
+</pre>
+
+My concern is that this adds a bit of slowdown (git show-ref is fast, but
+It's still extra work) to a very hot code path that is run to eg,
+update recentchanges after every change.
+
+Seems not ideal to do extra work every time to handle a case
+that will literally happen a maximum of once in the entire lifecycle of a
+wiki (and zero times more typically, since the setup automator puts in a
+.gitignore file that works around this problem).
+
+So as to not just say "no" ... what if it always tried to run git log,
+and if it failed (or returned no parsed lines), then it could look
+at git show-ref to deduce whether to throw an error or not.
+--[[Joey]]
+
+> Ah, but then git-log would still complain "bad revision 'HEAD'"
+> --[[Joey]]
+
+<pre>
+@@ -474,7 +478,10 @@ sub rcs_update () {
# Update working directory.
if (length $config{gitorigin_branch}) {
- run_or_cry('git', 'pull', '--prune', $config{gitorigin_branch});
+ run_or_cry('git', 'fetch', '--prune', $config{gitorigin_branch});
-+ if (-e $config{srcdir} . '/.git/refs/remotes/' . $config{gitorigin_branch} . '/' . $config{gitmaster_branch}) {
++ if (run_or_non('git', 'show-ref', '--quiet', '--verify', '--', 'refs/remotes/' . $config{gitorigin_branch} . '/' . $config{gitmaster_branch}) ) {
+ run_or_cry('git', 'merge', $config{gitorigin_branch} . '/' . $config{gitmaster_branch});
+ }
}
}
-
-@@ -559,7 +565,7 @@ sub rcs_commit_helper (@) {
+
+</pre>
+
+Same concern here about extra work. Code path is nearly as hot, being
+called on every refresh. Probably could be dealt with similarly as above.
+
+Also, is there any point in breaking the pull up into a
+fetch followed by a merge? --[[Joey]]
+
+<pre>
+@@ -559,7 +566,7 @@ sub rcs_commit_helper (@) {
# So we should ignore its exit status (hence run_or_non).
if (run_or_non('git', 'commit', '-m', $params{message}, '-q', @opts)) {
if (length $config{gitorigin_branch}) {
}
</pre>
+
+This seems fine to apply. --[[Joey]]