#!/usr/bin/perl
+package IkiWiki;
+
use warnings;
use strict;
use IkiWiki;
use Encode;
use open qw{:utf8 :std};
-package IkiWiki;
-
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
+hook(type => "checkconfig", id => "git", call => sub { #{{{
+ if (! defined $config{gitorigin_branch}) {
+ $config{gitorigin_branch}="origin";
+ }
+ if (! defined $config{gitmaster_branch}) {
+ $config{gitmaster_branch}="master";
+ }
+}); #}}}
+
+hook(type => "getsetup", id => "git", call => sub { #{{{
+ return
+ historyurl => {
+ type => "string",
+ default => "",
+ example => "http://git.example.com/gitweb.cgi?p=wiki.git;a=history;f=[[file]]",
+ description => "gitweb url to show file history ([[file]] substituted)",
+ safe => 1,
+ rebuild => 1,
+ },
+ diffurl => {
+ type => "string",
+ default => "",
+ example => "http://git.example.com/gitweb.cgi?p=wiki.git;a=blobdiff;h=[[sha1_to]];hp=[[sha1_from]];hb=[[sha1_parent]];f=[[file]]",
+ description => "gitweb url to show a diff ([[sha1_to]], [[sha1_from]], [[sha1_parent]], and [[file]] substituted)",
+ safe => 1,
+ rebuild => 1,
+ },
+ gitorigin_branch => {
+ type => "string",
+ default => "origin",
+ description => "where to pull and push changes (unset to not pull/push)",
+ safe => 0, # paranoia
+ rebuild => 0,
+ },
+ gitmaster_branch => {
+ type => "string",
+ default => "master",
+ description => "branch that the wiki is stored in",
+ safe => 0, # paranoia
+ rebuild => 0,
+ },
+}); #}}}
+
sub _safe_git (&@) { #{{{
# Start a child process safely without resorting /bin/sh.
# Return command output or success state (in scalar context).
sub _merge_past ($$$) { #{{{
# Unlike with Subversion, Git cannot make a 'svn merge -rN:M file'.
# Git merge commands work with the committed changes, except in the
- # implicit case of '-m' of git-checkout(1). So we should invent a
+ # implicit case of '-m' of git checkout(1). So we should invent a
# kludge here. In principle, we need to create a throw-away branch
# in preparing for the merge itself. Since branches are cheap (and
# branching is fast), this shouldn't cost high.
# possible approach to get rid of this situation could be that we first
# make a temporary commit in the master branch and later restore the
# initial state (this is possible since Git has the ability to undo a
- # commit, i.e. 'git-reset --soft HEAD^'). The method can be summarized
+ # commit, i.e. 'git reset --soft HEAD^'). The method can be summarized
# as follows:
#
# - create a diff of HEAD:current-sha1
my $branch = "throw_away_${sha1}"; # supposed to be unique
# Create a throw-away branch and rewind backward.
- push @undo, sub { run_or_cry('git-branch', '-D', $branch) };
- run_or_die('git-branch', $branch, $sha1);
+ push @undo, sub { run_or_cry('git', 'branch', '-D', $branch) };
+ run_or_die('git', 'branch', $branch, $sha1);
# Switch to throw-away branch for the merge operation.
push @undo, sub {
- if (!run_or_cry('git-checkout', $config{gitmaster_branch})) {
- run_or_cry('git-checkout','-f',$config{gitmaster_branch});
+ if (!run_or_cry('git', 'checkout', $config{gitmaster_branch})) {
+ run_or_cry('git', 'checkout','-f',$config{gitmaster_branch});
}
};
- run_or_die('git-checkout', $branch);
+ run_or_die('git', 'checkout', $branch);
# Put the modified file in _this_ branch.
rename($hidden, $target)
or error("rename '$hidden' to '$target' failed: $!");
# _Silently_ commit all modifications in the current branch.
- run_or_non('git-commit', '-m', $message, '-a');
+ run_or_non('git', 'commit', '-m', $message, '-a');
# ... and re-switch to master.
- run_or_die('git-checkout', $config{gitmaster_branch});
+ run_or_die('git', 'checkout', $config{gitmaster_branch});
# Attempt to merge without complaining.
- if (!run_or_non('git-pull', '--no-commit', '.', $branch)) {
+ if (!run_or_non('git', 'pull', '--no-commit', '.', $branch)) {
$conflict = readfile($target);
- run_or_die('git-reset', '--hard');
+ run_or_die('git', 'reset', '--hard');
}
};
my $failure = $@;
$ci{ "${who}_epoch" } = $epoch;
$ci{ "${who}_tz" } = $tz;
- if ($name =~ m/^([^<]+) <([^@]+)/) {
- my ($fullname, $username) = ($1, $2);
- $ci{"${who}_fullname"} = $fullname;
- $ci{"${who}_username"} = $username;
+ if ($name =~ m/^[^<]+\s+<([^@>]+)/) {
+ $ci{"${who}_username"} = $1;
+ }
+ elsif ($name =~ m/^([^<]+)\s+<>$/) {
+ $ci{"${who}_username"} = $1;
}
else {
- $ci{"${who}_fullname"} =
- $ci{"${who}_username"} = $name;
+ $ci{"${who}_username"} = $name;
}
}
elsif ($line =~ m/^$/) {
}
}
- debug("No 'tree' or 'parents' seen in diff-tree output")
- if !defined $ci{'tree'} || !defined $ci{'parents'};
-
- $ci{'parent'} = @{ $ci{'parents'} }[0] if defined $ci{'parents'};
+ debug("No 'tree' seen in diff-tree output") if !defined $ci{'tree'};
+
+ if (defined $ci{'parents'}) {
+ $ci{'parent'} = @{ $ci{'parents'} }[0];
+ }
+ else {
+ $ci{'parent'} = 0 x 40;
+ }
- # Commit message.
- while (my $line = shift @{ $dt_ref }) {
- if ($line =~ m/^$/) {
- # Trailing empty line signals next section.
- last;
- };
+ # Commit message (optional).
+ while ($dt_ref->[0] =~ /^ /) {
+ my $line = shift @{ $dt_ref };
$line =~ s/^ //;
push @{ $ci{'comment'} }, $line;
}
+ shift @{ $dt_ref } if $dt_ref->[0] =~ /^$/;
# Modified files.
while (my $line = shift @{ $dt_ref }) {
- if ($line =~ m{^:
- ([0-7]{6})[ ] # from mode
- ([0-7]{6})[ ] # to mode
- ($sha1_pattern)[ ] # from sha1
- ($sha1_pattern)[ ] # to sha1
- (.) # status
- ([0-9]{0,3})\t # similarity
- (.*) # file
+ if ($line =~ m{^
+ (:+) # number of parents
+ ([^\t]+)\t # modes, sha1, status
+ (.*) # file names
$}xo) {
- my ($sha1_from, $sha1_to, $file) =
- ($3, $4, $7 );
+ my $num_parents = length $1;
+ my @tmp = split(" ", $2);
+ my ($file, $file_to) = split("\t", $3);
+ my @mode_from = splice(@tmp, 0, $num_parents);
+ my $mode_to = shift(@tmp);
+ my @sha1_from = splice(@tmp, 0, $num_parents);
+ my $sha1_to = shift(@tmp);
+ my $status = shift(@tmp);
if ($file =~ m/^"(.*)"$/) {
($file=$1) =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
if (length $file) {
push @{ $ci{'details'} }, {
'file' => decode_utf8($file),
- 'sha1_from' => $sha1_from,
+ 'sha1_from' => $sha1_from[0],
'sha1_to' => $sha1_to,
};
}
last;
}
- debug("No detail in diff-tree output") if !defined $ci{'details'};
-
return \%ci;
} #}}}
$num ||= 1;
- my @raw_lines =
- run_or_die('git-log', "--max-count=$num", '--pretty=raw', '--raw', '--abbrev=40', '--always', '-m', '-r', $sha1, '--', '.');
- my ($prefix) = run_or_die('git-rev-parse', '--show-prefix');
+ my @raw_lines = run_or_die('git', 'log', "--max-count=$num",
+ '--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
+ '-r', $sha1, '--', '.');
+ my ($prefix) = run_or_die('git', 'rev-parse', '--show-prefix');
my @ci;
while (my $parsed = _parse_diff_tree(($prefix or ""), \@raw_lines)) {
my $file = shift || q{--};
# Ignore error since a non-existing file might be given.
- my ($sha1) = run_or_non('git-rev-list', '--max-count=1', 'HEAD', $file);
+ my ($sha1) = run_or_non('git', 'rev-list', '--max-count=1', 'HEAD',
+ '--', $file);
if ($sha1) {
($sha1) = $sha1 =~ m/($sha1_pattern)/; # sha1 is untainted now
} else { debug("Empty sha1sum for '$file'.") }
sub rcs_update () { #{{{
# Update working directory.
- run_or_cry('git-pull', $config{gitorigin_branch});
+ if (length $config{gitorigin_branch}) {
+ run_or_cry('git', 'pull', $config{gitorigin_branch});
+ }
} #}}}
sub rcs_prepedit ($) { #{{{
my ($file, $message, $rcstoken, $user, $ipaddr) = @_;
- if (defined $user) {
- $message = "web commit by $user" .
- (length $message ? ": $message" : "");
- }
- elsif (defined $ipaddr) {
- $message = "web commit from $ipaddr" .
- (length $message ? ": $message" : "");
- }
-
- # XXX: Wiki directory is in the unlocked state when starting this
- # action. But it takes time for a Git process to finish its job
- # (especially if a merge required), so we must re-lock to prevent
- # race conditions. Only when the time of the real commit action
- # (i.e. git-push(1)) comes, we'll unlock the directory.
- lockwiki();
-
# Check to see if the page has been changed by someone else since
# rcs_prepedit was called.
my $cur = git_sha1($file);
return $conflict if defined $conflict;
}
- # git-commit(1) returns non-zero if file has not been really changed.
+ rcs_add($file);
+ return rcs_commit_staged($message, $user, $ipaddr);
+} #}}}
+
+sub rcs_commit_staged ($$$) {
+ # Commits all staged changes. Changes can be staged using rcs_add,
+ # rcs_remove, and rcs_rename.
+ my ($message, $user, $ipaddr)=@_;
+
+ # Set the commit author and email to the web committer.
+ my %env=%ENV;
+ if (defined $user || defined $ipaddr) {
+ my $u=defined $user ? $user : $ipaddr;
+ $ENV{GIT_AUTHOR_NAME}=$u;
+ $ENV{GIT_AUTHOR_EMAIL}="$u\@web";
+ }
+
+ # git commit returns non-zero if file has not been really changed.
# so we should ignore its exit status (hence run_or_non).
$message = possibly_foolish_untaint($message);
- if (run_or_non('git-commit', '-m', $message, '-i', $file)) {
- unlockwiki();
- run_or_cry('git-push', $config{gitorigin_branch});
+ if (run_or_non('git', 'commit', '--cleanup=verbatim',
+ '-q', '-m', $message)) {
+ if (length $config{gitorigin_branch}) {
+ run_or_cry('git', 'push', $config{gitorigin_branch});
+ }
}
-
+
+ %ENV=%env;
return undef; # success
-} #}}}
+}
sub rcs_add ($) { # {{{
# Add file to archive.
my ($file) = @_;
- run_or_cry('git-add', $file);
+ run_or_cry('git', 'add', $file);
+} #}}}
+
+sub rcs_remove ($) { # {{{
+ # Remove file from archive.
+
+ my ($file) = @_;
+
+ run_or_cry('git', 'rm', '-f', $file);
+} #}}}
+
+sub rcs_rename ($$) { # {{{
+ my ($src, $dest) = @_;
+
+ run_or_cry('git', 'mv', '-f', $src, $dest);
} #}}}
sub rcs_recentchanges ($) { #{{{
my @rets;
foreach my $ci (git_commit_info('HEAD', $num)) {
- my $title = @{ $ci->{'comment'} }[0];
-
# Skip redundant commits.
- next if ($title eq $dummy_commit_msg);
+ next if ($ci->{'comment'} && @{$ci->{'comment'}}[0] eq $dummy_commit_msg);
my ($sha1, $when) = (
$ci->{'sha1'},
- time - $ci->{'author_epoch'}
+ $ci->{'author_epoch'}
);
- my (@pages, @messages);
+ my @pages;
foreach my $detail (@{ $ci->{'details'} }) {
- my $diffurl = $config{'diffurl'};
- my $file = $detail->{'file'};
+ my $file = $detail->{'file'};
+ my $diffurl = $config{'diffurl'};
$diffurl =~ s/\[\[file\]\]/$file/go;
$diffurl =~ s/\[\[sha1_parent\]\]/$ci->{'parent'}/go;
$diffurl =~ s/\[\[sha1_from\]\]/$detail->{'sha1_from'}/go;
diffurl => $diffurl,
};
}
- push @messages, { line => $title };
- my ($user, $type) = (q{}, "web");
+ my @messages;
+ my $pastblank=0;
+ foreach my $line (@{$ci->{'comment'}}) {
+ $pastblank=1 if $line eq '';
+ next if $pastblank && $line=~m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i;
+ push @messages, { line => $line };
+ }
- if (defined $messages[0] &&
- $messages[0]->{line} =~ m/$config{web_commit_regexp}/) {
+ my $user=$ci->{'author_username'};
+ my $web_commit = ($ci->{'author'} =~ /\@web>/);
+
+ # compatability code for old web commit messages
+ if (! $web_commit &&
+ defined $messages[0] &&
+ $messages[0]->{line} =~ m/$config{web_commit_regexp}/) {
$user = defined $2 ? "$2" : "$3";
$messages[0]->{line} = $4;
- }
- else {
- $type ="git";
- $user = $ci->{'author_username'};
+ $web_commit=1;
}
push @rets, {
rev => $sha1,
user => $user,
- committype => $type,
+ committype => $web_commit ? "web" : "git",
when => $when,
message => [@messages],
pages => [@pages],
- };
+ } if @pages;
last if @rets >= $num;
}
return @rets;
} #}}}
-sub rcs_notify () { #{{{
- # Send notification mail to subscribed users.
- #
- # In usual Git usage, hooks/update script is presumed to send
- # notification mails (see git-receive-pack(1)). But we prefer
- # hooks/post-update to support IkiWiki commits coming from a
- # cloned repository (through command line) because post-update
- # is called _after_ each ref in repository is updated (update
- # hook is called _before_ the repository is updated). Since
- # post-update hook does not accept command line arguments, we
- # don't have an $ENV variable in this function.
- #
- # Here, we rely on a simple fact: we can extract all parts of the
- # notification content by parsing the "HEAD" commit (which also
- # triggers a refresh of IkiWiki pages) and we can obtain the diff
- # by comparing HEAD and HEAD^ (the previous commit).
-
- my $sha1 = 'HEAD'; # the commit which triggers this action
-
- my $ci = git_commit_info($sha1);
- return if !defined $ci;
-
- my @changed_pages = map { $_->{'file'} } @{ $ci->{'details'} };
-
- my ($user, $message);
- if (@{ $ci->{'comment'} }[0] =~ m/$config{web_commit_regexp}/) {
- $user = defined $2 ? "$2" : "$3";
- $message = $4;
+sub rcs_diff ($) { #{{{
+ my $rev=shift;
+ my ($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";
+ }
+ }
+ if (wantarray) {
+ return @lines;
}
else {
- $user = $ci->{'author_username'};
- $message = join "\n", @{ $ci->{'comment'} };
+ return join("", @lines);
}
-
- require IkiWiki::UserInfo;
- send_commit_mails(
- sub {
- $message;
- },
- sub {
- join "\n", run_or_die('git-diff', "${sha1}^", $sha1);
- }, $user, @changed_pages
- );
} #}}}
sub rcs_getctime ($) { #{{{