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);
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 () {
}
}
+my $git_dir=undef;
+my $prefix=undef;
+
+sub in_git_dir ($$) {
+ $git_dir=shift;
+ my @ret=shift->();
+ $git_dir=undef;
+ $prefix=undef;
+ return @ret;
+}
+
sub safe_git (&@) {
# Start a child process safely without resorting to /bin/sh.
# Returns command output (in list content) or success state
sub run_or_cry ($@) { safe_git(sub { warn @_ }, undef, @_) }
sub run_or_non ($@) { safe_git(undef, undef, @_) }
+sub ensure_committer {
+ if (! length $ENV{GIT_AUTHOR_NAME} || ! length $ENV{GIT_COMMITTER_NAME}) {
+ my $name = join('', run_or_non("git", "config", "user.name"));
+ if (! length $name) {
+ run_or_die("git", "config", "user.name", "IkiWiki");
+ }
+ }
+
+ if (! length $ENV{GIT_AUTHOR_EMAIL} || ! length $ENV{GIT_COMMITTER_EMAIL}) {
+ my $email = join('', run_or_non("git", "config", "user.email"));
+ if (! length $email) {
+ run_or_die("git", "config", "user.email", "ikiwiki.info");
+ }
+ }
+}
sub merge_past ($$$) {
# Unlike with Subversion, Git cannot make a 'svn merge -rN:M file'.
my @undo; # undo stack for cleanup in case of an error
my $conflict; # file content with conflict markers
+ ensure_committer();
+
eval {
# Hide local changes from Git by renaming the modified file.
# Relative paths must be converted to absolute for renaming.
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.
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.
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 () {
# Update working directory.
+ ensure_committer();
+
if (length $config{gitorigin_branch}) {
run_or_cry('git', 'pull', '--prune', $config{gitorigin_branch});
}
# This will be later used in rcs_commit if a merge is required.
my ($file) = @_;
- return git_sha1($file);
+ return git_sha1_file($file);
}
sub rcs_commit (@) {
# 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) {
$u=$params{session}->remote_addr();
}
if (defined $u) {
- $u=encode_utf8($u);
+ $u=encode_utf8(IkiWiki::cloak($u));
$ENV{GIT_AUTHOR_NAME}=$u;
}
if (defined $params{session}->param("nickname")) {
}
}
+ ensure_committer();
+
$params{message} = IkiWiki::possibly_foolish_untaint($params{message});
my @opts;
if ($params{message} !~ /\S/) {
# Force git to allow empty commit messages.
# (If this version of git supports it.)
my ($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 {
# 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}, $config{gitmaster_branch});
}
}
my ($file) = @_;
- run_or_cry('git', 'add', $file);
+ ensure_committer();
+
+ run_or_cry('git', 'add', '--', $file);
}
sub rcs_remove ($) {
my ($file) = @_;
- run_or_cry('git', 'rm', '-f', $file);
+ ensure_committer();
+
+ run_or_cry('git', 'rm', '-f', '--', $file);
}
sub rcs_rename ($$) {
my ($src, $dest) = @_;
- run_or_cry('git', 'mv', '-f', $src, $dest);
+ ensure_committer();
+
+ run_or_cry('git', 'mv', '-f', '--', $src, $dest);
}
sub rcs_recentchanges ($) {
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;
}
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);
- 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(@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");
+ }
- $git_dir=undef;
- return @ret;
+ git_parse_changes(1, @commits);
+ });
}
sub rcs_revert ($) {
my $rev = shift;
my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint
+ ensure_committer();
+
if (run_or_non('git', 'revert', '--no-commit', $sha1)) {
return undef;
}