X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/5cb0ecc00087d716a61dd42d7598a6fb78d60b7b..2bb5085785d05d5f3fa81b7adcfb8678c7c67ae8:/IkiWiki/Plugin/git.pm?ds=sidebyside

diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 3117e4291..75b89e476 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -5,11 +5,11 @@ use warnings;
 use strict;
 use IkiWiki;
 use Encode;
+use URI::Escape q{uri_escape_utf8};
 use open qw{:utf8 :std};
 
 my $sha1_pattern     = qr/[0-9a-fA-F]{40}/; # pattern to validate Git sha1sums
 my $dummy_commit_msg = 'dummy commit';      # message to skip in recent changes
-my $git_dir=undef;
 
 sub import {
 	hook(type => "checkconfig", id => "git", call => \&checkconfig);
@@ -29,6 +29,8 @@ sub import {
 	hook(type => "rcs", id => "rcs_receive", call => \&rcs_receive);
 	hook(type => "rcs", id => "rcs_preprevert", call => \&rcs_preprevert);
 	hook(type => "rcs", id => "rcs_revert", call => \&rcs_revert);
+	hook(type => "rcs", id => "rcs_find_changes", call => \&rcs_find_changes);
+	hook(type => "rcs", id => "rcs_get_current_rev", call => \&rcs_get_current_rev);
 }
 
 sub checkconfig () {
@@ -151,6 +153,17 @@ sub genwrapper {
 	}
 }
 
+my $git_dir=undef;
+my $prefix=undef;
+
+sub in_git_dir ($$) {
+	$git_dir=shift;
+	my @ret=shift->();
+	$git_dir=undef;
+	$prefix=undef;
+	return @ret;
+}
+
 sub safe_git (&@) {
 	# Start a child process safely without resorting to /bin/sh.
 	# Returns command output (in list content) or success state
@@ -302,8 +315,6 @@ sub merge_past ($$$) {
 	return $conflict;
 }
 
-{
-my $prefix;
 sub decode_git_file ($) {
 	my $file=shift;
 
@@ -325,7 +336,6 @@ sub decode_git_file ($) {
 
 	return decode("utf8", $file);
 }
-}
 
 sub parse_diff_tree ($) {
 	# Parse the raw diff tree chunk and return the info hash.
@@ -333,8 +343,8 @@ sub parse_diff_tree ($) {
 	my $dt_ref = shift;
 
 	# End of stream?
-	return if !defined @{ $dt_ref } ||
-		  !defined @{ $dt_ref }[0] || !length @{ $dt_ref }[0];
+	return if ! @{ $dt_ref } ||
+		  !defined $dt_ref->[0] || !length $dt_ref->[0];
 
 	my %ci;
 	# Header line.
@@ -454,20 +464,63 @@ sub git_commit_info ($;$) {
 	return wantarray ? @ci : $ci[0];
 }
 
-sub git_sha1 (;$) {
-	# Return head sha1sum (of given file).
-	my $file = shift || q{--};
+sub rcs_find_changes ($) {
+	my $oldrev=shift;
+
+	# Note that git log will sometimes show files being added that
+	# don't exist. Particularly, git merge -s ours can result in a
+	# merge commit where some files were not really added.
+	# This is why the code below verifies that the files really
+	# exist.
+	my @raw_lines = run_or_die('git', 'log',
+		'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
+		'--no-renames', , '--reverse',
+		'-r', "$oldrev..HEAD", '--', '.');
+
+	# Due to --reverse, we see changes in chronological order.
+	my %changed;
+	my %deleted;
+	my $nullsha = 0 x 40;
+	my $newrev=$oldrev;
+	while (my $ci = parse_diff_tree(\@raw_lines)) {
+		$newrev=$ci->{sha1};
+		foreach my $i (@{$ci->{details}}) {
+			my $file=$i->{file};
+			if ($i->{sha1_to} eq $nullsha) {
+				if (! -e "$config{srcdir}/$file") {
+					delete $changed{$file};
+					$deleted{$file}=1;
+				}
+			}
+			else {
+				if (-e "$config{srcdir}/$file") {
+					delete $deleted{$file};
+					$changed{$file}=1;
+				}
+			}
+		}
+	}
+
+	return (\%changed, \%deleted, $newrev);
+}
+
+sub git_sha1_file ($) {
+	my $file=shift;
+	git_sha1("--", $file);
+}
 
+sub git_sha1 (@) {
 	# Ignore error since a non-existing file might be given.
 	my ($sha1) = run_or_non('git', 'rev-list', '--max-count=1', 'HEAD',
-		'--', $file);
-	if ($sha1) {
+		'--', @_);
+	if (defined $sha1) {
 		($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
 	}
-	else {
-		debug("Empty sha1sum for '$file'.");
-	}
-	return defined $sha1 ? $sha1 : q{};
+	return defined $sha1 ? $sha1 : '';
+}
+
+sub rcs_get_current_rev () {
+	git_sha1();
 }
 
 sub rcs_update () {
@@ -483,7 +536,7 @@ sub rcs_prepedit ($) {
 	# This will be later used in rcs_commit if a merge is required.
 	my ($file) = @_;
 
-	return git_sha1($file);
+	return git_sha1_file($file);
 }
 
 sub rcs_commit (@) {
@@ -494,7 +547,7 @@ sub rcs_commit (@) {
 
 	# Check to see if the page has been changed by someone else since
 	# rcs_prepedit was called.
-	my $cur    = git_sha1($params{file});
+	my $cur    = git_sha1_file($params{file});
 	my ($prev) = $params{token} =~ /^($sha1_pattern)$/; # untaint
 
 	if (defined $cur && defined $prev && $cur ne $prev) {
@@ -545,7 +598,13 @@ sub rcs_commit_helper (@) {
 		# Force git to allow empty commit messages.
 		# (If this version of git supports it.)
 		my ($version)=`git --version` =~ /git version (.*)/;
-		if ($version ge "1.5.4") {
+		if ($version ge "1.7.8") {
+			push @opts, "--allow-empty-message", "--no-edit";
+		}
+		if ($version ge "1.7.2") {
+			push @opts, "--allow-empty-message";
+		}
+		elsif ($version ge "1.5.4") {
 			push @opts, '--cleanup=verbatim';
 		}
 		else {
@@ -559,7 +618,7 @@ 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}) {
-			run_or_cry('git', 'push', $config{gitorigin_branch});
+			run_or_cry('git', 'push', $config{gitorigin_branch}, $config{gitmaster_branch});
 		}
 	}
 	
@@ -610,9 +669,12 @@ sub rcs_recentchanges ($) {
 		my @pages;
 		foreach my $detail (@{ $ci->{'details'} }) {
 			my $file = $detail->{'file'};
+			my $efile = join('/',
+				map { uri_escape_utf8($_) } split('/', $file)
+			);
 
 			my $diffurl = defined $config{'diffurl'} ? $config{'diffurl'} : "";
-			$diffurl =~ s/\[\[file\]\]/$file/go;
+			$diffurl =~ s/\[\[file\]\]/$efile/go;
 			$diffurl =~ s/\[\[sha1_parent\]\]/$ci->{'parent'}/go;
 			$diffurl =~ s/\[\[sha1_from\]\]/$detail->{'sha1_from'}/go;
 			$diffurl =~ s/\[\[sha1_to\]\]/$detail->{'sha1_to'}/go;
@@ -845,9 +907,9 @@ sub rcs_receive () {
 		# (Also, if a subdir is involved, we don't want to chdir to
 		# it and only see changes in it.)
 		# The pre-receive hook already puts us in the right place.
-		$git_dir=".";
-		push @rets, git_parse_changes(0, git_commit_info($oldrev."..".$newrev));
-		$git_dir=undef;
+		in_git_dir(".", sub {
+			push @rets, git_parse_changes(0, git_commit_info($oldrev."..".$newrev));
+		});
 	}
 
 	return reverse @rets;
@@ -860,23 +922,21 @@ sub rcs_preprevert ($) {
 	# Examine changes from root of git repo, not from any subdir,
 	# in order to see all changes.
 	my ($subdir, $rootdir) = git_find_root();
-	$git_dir=$rootdir;
-
-	my @commits=git_commit_info($sha1, 1);
-	if (! @commits) {
-		error "unknown commit"; # just in case
-	}
-
-	# git revert will fail on merge commits. Add a nice message.
-	if (exists $commits[0]->{parents} &&
-	    @{$commits[0]->{parents}} > 1) {
-		error gettext("you are not allowed to revert a merge");
-	}
+	in_git_dir($rootdir, sub {
+		my @commits=git_commit_info($sha1, 1);
+	
+		if (! @commits) {
+			error "unknown commit"; # just in case
+		}
 
-	my @ret=git_parse_changes(1, @commits);
+		# git revert will fail on merge commits. Add a nice message.
+		if (exists $commits[0]->{parents} &&
+		    @{$commits[0]->{parents}} > 1) {
+			error gettext("you are not allowed to revert a merge");
+		}
 
-	$git_dir=undef;
-	return @ret;
+		git_parse_changes(1, @commits);
+	});
 }
 
 sub rcs_revert ($) {