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);
}
}
+my $git_dir=undef;
+my $prefix=undef;
+
+sub in_git_dir ($$) {
+ $git_dir=shift;
+ my @ret=shift->();
+ $git_dir=undef;
+ $prefix=undef;
+ return @ret;
+}
+
sub safe_git (&@) {
- # Start a child process safely without resorting /bin/sh.
- # Return command output or success state (in scalar context).
+ # Start a child process safely without resorting to /bin/sh.
+ # Returns command output (in list content) or success state
+ # (in scalar context), or runs the specified data handler.
- my ($error_handler, @cmdline) = @_;
+ my ($error_handler, $data_handler, @cmdline) = @_;
my $pid = open my $OUT, "-|";
chomp;
- push @lines, $_;
+ if (! defined $data_handler) {
+ push @lines, $_;
+ }
+ else {
+ last unless $data_handler->($_);
+ }
}
close $OUT;
return wantarray ? @lines : ($? == 0);
}
# Convenient wrappers.
-sub run_or_die ($@) { safe_git(\&error, @_) }
-sub run_or_cry ($@) { safe_git(sub { warn @_ }, @_) }
-sub run_or_non ($@) { safe_git(undef, @_) }
+sub run_or_die ($@) { safe_git(\&error, undef, @_) }
+sub run_or_cry ($@) { safe_git(sub { warn @_ }, undef, @_) }
+sub run_or_non ($@) { safe_git(undef, undef, @_) }
sub merge_past ($$$) {
return $conflict;
}
-{
-my $prefix;
sub decode_git_file ($) {
my $file=shift;
return decode("utf8", $file);
}
-}
sub parse_diff_tree ($) {
# Parse the raw diff tree chunk and return the info hash.
# 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_update () {
my @pages;
foreach my $detail (@{ $ci->{'details'} }) {
my $file = $detail->{'file'};
+ my $efile = uri_escape_utf8($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/\[\[sha1_to\]\]/$detail->{'sha1_to'}/go;
return @rets;
}
-sub rcs_diff ($) {
+sub rcs_diff ($;$) {
my $rev=shift;
+ my $maxlines=shift;
my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint
my @lines;
- foreach my $line (run_or_non("git", "show", $sha1)) {
- if (@lines || $line=~/^diff --git/) {
- push @lines, $line."\n";
- }
- }
+ my $addlines=sub {
+ my $line=shift;
+ return if defined $maxlines && @lines == $maxlines;
+ push @lines, $line."\n"
+ if (@lines || $line=~/^diff --git/);
+ return 1;
+ };
+ safe_git(undef, $addlines, "git", "show", $sha1);
if (wantarray) {
return @lines;
}
}
sub git_parse_changes {
+ my $reverted = shift;
my @changes = @_;
my ($subdir, $rootdir) = git_find_root();
$mode=$detail->{'mode_to'};
}
elsif ($detail->{'status'} =~ /^[AM]+\d*$/) {
- $action="add";
+ $action= $reverted ? "remove" : "add";
$mode=$detail->{'mode_to'};
}
elsif ($detail->{'status'} =~ /^[DAM]+\d*/) {
- $action="remove";
+ $action= $reverted ? "add" : "remove";
$mode=$detail->{'mode_from'};
}
else {
# (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.
- $git_dir=".";
- push @rets, git_parse_changes(git_commit_info($oldrev."..".$newrev));
- $git_dir=undef;
+ in_git_dir(".", sub {
+ push @rets, git_parse_changes(0, git_commit_info($oldrev."..".$newrev));
+ });
}
return reverse @rets;
# Examine changes from root of git repo, not from any subdir,
# in order to see all changes.
my ($subdir, $rootdir) = git_find_root();
- $git_dir=$rootdir;
- my @commits=git_commit_info($sha1, 1);
- $git_dir=undef;
-
- if (! @commits) {
- error "unknown commit"; # just in case
- }
+ in_git_dir($rootdir, sub {
+ 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");
- }
+ # 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");
+ }
- return git_parse_changes(@commits);
+ git_parse_changes(1, @commits);
+ });
}
sub rcs_revert ($) {