diff options
Diffstat (limited to 'IkiWiki/Plugin/git.pm')
-rw-r--r-- | IkiWiki/Plugin/git.pm | 225 |
1 files changed, 147 insertions, 78 deletions
diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm index d342a7398..3db4af729 100644 --- a/IkiWiki/Plugin/git.pm +++ b/IkiWiki/Plugin/git.pm @@ -9,7 +9,7 @@ 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 $no_chdir=0; +my $git_dir=undef; sub import { hook(type => "checkconfig", id => "git", call => \&checkconfig); @@ -27,6 +27,8 @@ sub import { hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime); hook(type => "rcs", id => "rcs_getmtime", call => \&rcs_getmtime); hook(type => "rcs", id => "rcs_receive", call => \&rcs_receive); + hook(type => "rcs", id => "rcs_preprevert", call => \&rcs_preprevert); + hook(type => "rcs", id => "rcs_revert", call => \&rcs_revert); } sub checkconfig () { @@ -162,9 +164,13 @@ sub safe_git (&@) { if (!$pid) { # In child. # Git commands want to be in wc. - if (! $no_chdir) { + if (! defined $git_dir) { chdir $config{srcdir} - or error("Cannot chdir to $config{srcdir}: $!"); + or error("cannot chdir to $config{srcdir}: $!"); + } + else { + chdir $git_dir + or error("cannot chdir to $git_dir: $!"); } exec @cmdline or error("Cannot exec '@cmdline': $!"); } @@ -462,7 +468,7 @@ sub rcs_update () { # Update working directory. if (length $config{gitorigin_branch}) { - run_or_cry('git', 'pull', $config{gitorigin_branch}); + run_or_cry('git', 'pull', '--prune', $config{gitorigin_branch}); } } @@ -490,16 +496,16 @@ sub rcs_commit (@) { return $conflict if defined $conflict; } - rcs_add($params{file}); - return rcs_commit_staged( - message => $params{message}, - session => $params{session}, - ); + return rcs_commit_helper(@_); } sub rcs_commit_staged (@) { # Commits all staged changes. Changes can be staged using rcs_add, # rcs_remove, and rcs_rename. + return rcs_commit_helper(@_); +} + +sub rcs_commit_helper (@) { my %params=@_; my %env=%ENV; @@ -540,10 +546,12 @@ sub rcs_commit_staged (@) { $params{message}.="."; } } - push @opts, '-q'; - # git commit returns non-zero if file has not been really changed. - # so we should ignore its exit status (hence run_or_non). - if (run_or_non('git', 'commit', @opts, '-m', $params{message})) { + if (exists $params{file}) { + push @opts, '--', $params{file}; + } + # git commit returns non-zero if nothing really changed. + # 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}); } @@ -682,7 +690,7 @@ sub findtimes ($$) { if (! keys %time_cache) { my $date; foreach my $line (run_or_die('git', 'log', - '--pretty=format:%ct', + '--pretty=format:%at', '--name-only', '--relative')) { if (! defined $date && $line =~ /^(\d+)$/) { $date=$line; @@ -718,10 +726,15 @@ sub rcs_getmtime ($) { return findtimes($file, 0); } -sub rcs_receive () { +{ +my $ret; +sub git_find_root { # The wiki may not be the only thing in the git repo. # Determine if it is in a subdirectory by examining the srcdir, # and its parents, looking for the .git directory. + + return @$ret if defined $ret; + my $subdir=""; my $dir=$config{srcdir}; while (! -d "$dir/.git") { @@ -732,83 +745,139 @@ sub rcs_receive () { } } + $ret=[$subdir, $dir]; + return @$ret; +} + +} + +sub git_parse_changes { + my @changes = @_; + + my ($subdir, $rootdir) = git_find_root(); + my @rets; + foreach my $ci (@changes) { + foreach my $detail (@{ $ci->{'details'} }) { + my $file = $detail->{'file'}; + + # check that all changed files are in the subdir + if (length $subdir && + ! ($file =~ s/^\Q$subdir\E//)) { + error sprintf(gettext("you are not allowed to change %s"), $file); + } + + my ($action, $mode, $path); + if ($detail->{'status'} =~ /^[M]+\d*$/) { + $action="change"; + $mode=$detail->{'mode_to'}; + } + elsif ($detail->{'status'} =~ /^[AM]+\d*$/) { + $action="add"; + $mode=$detail->{'mode_to'}; + } + elsif ($detail->{'status'} =~ /^[DAM]+\d*/) { + $action="remove"; + $mode=$detail->{'mode_from'}; + } + else { + error "unknown status ".$detail->{'status'}; + } + + # test that the file mode is ok + if ($mode !~ /^100[64][64][64]$/) { + error sprintf(gettext("you cannot act on a file with mode %s"), $mode); + } + if ($action eq "change") { + if ($detail->{'mode_from'} ne $detail->{'mode_to'}) { + error gettext("you are not allowed to change file modes"); + } + } + + # extract attachment to temp file + if (($action eq 'add' || $action eq 'change') && + ! pagetype($file)) { + eval q{use File::Temp}; + die $@ if $@; + my $fh; + ($fh, $path)=File::Temp::tempfile(undef, UNLINK => 1); + my $cmd = "cd $git_dir && ". + "git show $detail->{sha1_to} > '$path'"; + if (system($cmd) != 0) { + error("failed writing temp file '$path'."); + } + } + + push @rets, { + file => $file, + action => $action, + path => $path, + }; + } + } + + return @rets; +} + +sub rcs_receive () { my @rets; while (<>) { chomp; my ($oldrev, $newrev, $refname) = split(' ', $_, 3); - + # only allow changes to gitmaster_branch if ($refname !~ /^refs\/heads\/\Q$config{gitmaster_branch}\E$/) { error sprintf(gettext("you are not allowed to change %s"), $refname); } - + # Avoid chdir when running git here, because the changes # are in the master git repo, not the srcdir repo. - # The pre-recieve hook already puts us in the right place. - $no_chdir=1; - my @changes=git_commit_info($oldrev."..".$newrev); - $no_chdir=0; - - foreach my $ci (@changes) { - foreach my $detail (@{ $ci->{'details'} }) { - my $file = $detail->{'file'}; - - # check that all changed files are in the - # subdir - if (length $subdir && - ! ($file =~ s/^\Q$subdir\E//)) { - error sprintf(gettext("you are not allowed to change %s"), $file); - } + # (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)); + $git_dir=undef; + } - my ($action, $mode, $path); - if ($detail->{'status'} =~ /^[M]+\d*$/) { - $action="change"; - $mode=$detail->{'mode_to'}; - } - elsif ($detail->{'status'} =~ /^[AM]+\d*$/) { - $action="add"; - $mode=$detail->{'mode_to'}; - } - elsif ($detail->{'status'} =~ /^[DAM]+\d*/) { - $action="remove"; - $mode=$detail->{'mode_from'}; - } - else { - error "unknown status ".$detail->{'status'}; - } - - # test that the file mode is ok - if ($mode !~ /^100[64][64][64]$/) { - error sprintf(gettext("you cannot act on a file with mode %s"), $mode); - } - if ($action eq "change") { - if ($detail->{'mode_from'} ne $detail->{'mode_to'}) { - error gettext("you are not allowed to change file modes"); - } - } - - # extract attachment to temp file - if (($action eq 'add' || $action eq 'change') && - ! pagetype($file)) { - eval q{use File::Temp}; - die $@ if $@; - my $fh; - ($fh, $path)=File::Temp::tempfile("XXXXXXXXXX", UNLINK => 1); - if (system("git show ".$detail->{sha1_to}." > '$path'") != 0) { - error("failed writing temp file"); - } - } + return reverse @rets; +} - push @rets, { - file => $file, - action => $action, - path => $path, - }; - } - } +sub rcs_preprevert ($) { + my $rev=shift; + my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint + + # Examine changes from root of git repo, not from any subdir, + # in order to see all changes. + my ($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 } - return reverse @rets; + # 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); +} + +sub rcs_revert ($) { + # Try to revert the given rev; returns undef on _success_. + my $rev = shift; + my ($sha1) = $rev =~ /^($sha1_pattern)$/; # untaint + + if (run_or_non('git', 'revert', '--no-commit', $sha1)) { + return undef; + } + else { + run_or_die('git', 'reset', '--hard'); + return sprintf(gettext("Failed to revert commit %s"), $sha1); + } } 1 |