- #!/usr/pkg/bin/perl
- package IkiWiki::Plugin::cvs;
- use warnings;
- use strict;
- use IkiWiki;
- sub import {
- hook(type => "checkconfig", id => "cvs", call => \&checkconfig);
- hook(type => "getsetup", id => "cvs", call => \&getsetup);
- hook(type => "rcs", id => "rcs_update", call => \&rcs_update);
- hook(type => "rcs", id => "rcs_prepedit", call => \&rcs_prepedit);
- hook(type => "rcs", id => "rcs_commit", call => \&rcs_commit);
- hook(type => "rcs", id => "rcs_commit_staged", call => \&rcs_commit_staged);
- hook(type => "rcs", id => "rcs_add", call => \&rcs_add);
- hook(type => "rcs", id => "rcs_remove", call => \&rcs_remove);
- hook(type => "rcs", id => "rcs_rename", call => \&rcs_rename);
- hook(type => "rcs", id => "rcs_recentchanges", call => \&rcs_recentchanges);
- hook(type => "rcs", id => "rcs_diff", call => \&rcs_diff);
- hook(type => "rcs", id => "rcs_getctime", call => \&rcs_getctime);
- }
- sub checkconfig () {
- if (! defined $config{cvspath}) {
- $config{cvspath}="ikiwiki";
- }
- if (exists $config{cvspath}) {
- # code depends on the path not having extraneous slashes
- $config{cvspath}=~tr#/#/#s;
- $config{cvspath}=~s/\/$//;
- $config{cvspath}=~s/^\///;
- }
- if (defined $config{cvs_wrapper} && length $config{cvs_wrapper}) {
- push @{$config{wrappers}}, {
- wrapper => $config{cvs_wrapper},
- wrappermode => (defined $config{cvs_wrappermode} ? $config{cvs_wrappermode} : "04755"),
- };
- }
- }
- sub getsetup () {
- return
- plugin => {
- safe => 0, # rcs plugin
- rebuild => undef,
- },
- cvsrepo => {
- type => "string",
- example => "/cvs/wikirepo",
- description => "cvs repository location",
- safe => 0, # path
- rebuild => 0,
- },
- cvspath => {
- type => "string",
- example => "ikiwiki",
- description => "path inside repository where the wiki is located",
- safe => 0, # paranoia
- rebuild => 0,
- },
- cvs_wrapper => {
- type => "string",
- example => "/cvs/wikirepo/CVSROOT/post-commit",
- description => "cvs post-commit hook to generate (triggered by CVSROOT/loginfo entry",
- safe => 0, # file
- rebuild => 0,
- },
- cvs_wrappermode => {
- type => "string",
- example => '04755',
- description => "mode for cvs_wrapper (can safely be made suid)",
- safe => 0,
- rebuild => 0,
- },
- historyurl => {
- type => "string",
- example => "http://cvs.example.org/cvsweb.cgi/ikiwiki/[[file]]",
- description => "cvsweb url to show file history ([[file]] substituted)",
- safe => 1,
- rebuild => 1,
- },
- diffurl => {
- type => "string",
- example => "http://cvs.example.org/cvsweb.cgi/ikiwiki/[[file]].diff?r1=text&tr1=[[r1]]&r2=text&tr2=[[r2]]",
- description => "cvsweb url to show a diff ([[file]], [[r1]], and [[r2]] substituted)",
- safe => 1,
- rebuild => 1,
- },
- }
- sub cvs_info ($$) {
- my $field=shift;
- my $file=shift;
- chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
- my $info=`cvs status $file`;
- my ($ret)=$info=~/^\s*$field:\s*(\S+)/m;
- return $ret;
- }
- sub cvs_runcvs(@) {
- my ($cmd) = @_;
- unshift @$cmd, 'cvs', '-Q';
- eval q{use IPC::Cmd};
- error($@) if $@;
- chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
- my ($success, $error_code, $full_buf, $stdout_buf, $stderr_buf) =
- IPC::Cmd::run(command => $cmd, verbose => 0);
- if (! $success) {
- warn(join(" ", @$cmd) . " exited with code $error_code\n");
- warn(join "", @$stderr_buf);
- }
- return $success;
- }
- sub cvs_shquote_commit ($) {
- my $message = shift;
- my $test_message = "CVS autodiscover quoting CVS";
- eval q{use String::ShellQuote};
- error($@) if $@;
- eval q{use IPC::Cmd};
- error($@) if $@;
- my $cmd = ['echo', shell_quote($test_message)];
- my ($success, $error_code, $full_buf, $stdout_buf, $stderr_buf) =
- IPC::Cmd::run(command => $cmd, verbose => 0);
- if ((grep /'$test_message'/, @$stdout_buf) > 0) {
- return IkiWiki::possibly_foolish_untaint($message);
- } else {
- return shell_quote(IkiWiki::possibly_foolish_untaint($message));
- }
- }
- sub cvs_is_controlling {
- my $dir=shift;
- $dir=$config{srcdir} unless defined($dir);
- return (-d "$dir/CVS") ? 1 : 0;
- }
- sub rcs_update () {
- return unless cvs_is_controlling;
- cvs_runcvs(['update', '-dP']);
- }
- sub rcs_prepedit ($) {
- # Prepares to edit a file under revision control. Returns a token
- # that must be passed into rcs_commit when the file is ready
- # for committing.
- # The file is relative to the srcdir.
- my $file=shift;
- return unless cvs_is_controlling;
- # For cvs, return the revision of the file when
- # editing begins.
- my $rev=cvs_info("Repository revision", "$file");
- return defined $rev ? $rev : "";
- }
- sub rcs_commit ($$$;$$) {
- # Tries to commit the page; returns undef on _success_ and
- # a version of the page with the rcs's conflict markers on failure.
- # The file is relative to the srcdir.
- my $file=shift;
- my $message=shift;
- my $rcstoken=shift;
- my $user=shift;
- my $ipaddr=shift;
- return unless cvs_is_controlling;
- if (defined $user) {
- $message="web commit by $user".(length $message ? ": $message" : "");
- }
- elsif (defined $ipaddr) {
- $message="web commit from $ipaddr".(length $message ? ": $message" : "");
- }
- # Check to see if the page has been changed by someone
- # else since rcs_prepedit was called.
- my ($oldrev)=$rcstoken=~/^([0-9]+)$/; # untaint
- my $rev=cvs_info("Repository revision", "$config{srcdir}/$file");
- if (defined $rev && defined $oldrev && $rev != $oldrev) {
- # Merge their changes into the file that we've
- # changed.
- cvs_runcvs(['update', $file]) ||
- warn("cvs merge from $oldrev to $rev failed\n");
- }
- if (! cvs_runcvs(['commit', '-m', cvs_shquote_commit $message])) {
- my $conflict=readfile("$config{srcdir}/$file");
- cvs_runcvs(['update', '-C', $file]) ||
- warn("cvs revert failed\n");
- return $conflict;
- }
- return undef # success
- }
- sub rcs_commit_staged ($$$) {
- # Commits all staged changes. Changes can be staged using rcs_add,
- # rcs_remove, and rcs_rename.
- my ($message, $user, $ipaddr)=@_;
- if (defined $user) {
- $message="web commit by $user".(length $message ? ": $message" : "");
- }
- elsif (defined $ipaddr) {
- $message="web commit from $ipaddr".(length $message ? ": $message" : "");
- }
- if (! cvs_runcvs(['commit', '-m', cvs_shquote_commit $message])) {
- warn "cvs staged commit failed\n";
- return 1; # failure
- }
- return undef # success
- }
- sub rcs_add ($) {
- # filename is relative to the root of the srcdir
- my $file=shift;
- my $parent=IkiWiki::dirname($file);
- my @files_to_add = ($file);
- eval q{use File::MimeInfo};
- error($@) if $@;
- until ((length($parent) == 0) || cvs_is_controlling("$config{srcdir}/$parent")){
- push @files_to_add, $parent;
- $parent = IkiWiki::dirname($parent);
- }
- while ($file = pop @files_to_add) {
- if (@files_to_add == 0) {
- # file
- my $filemime = File::MimeInfo::default($file);
- if (defined($filemime) && $filemime eq 'text/plain') {
- cvs_runcvs(['add', $file]) ||
- warn("cvs add $file failed\n");
- } else {
- cvs_runcvs(['add', '-kb', $file]) ||
- warn("cvs add binary $file failed\n");
- }
- } else {
- # directory
- cvs_runcvs(['add', $file]) ||
- warn("cvs add $file failed\n");
- }
- }
- }
- sub rcs_remove ($) {
- # filename is relative to the root of the srcdir
- my $file=shift;
- return unless cvs_is_controlling;
- cvs_runcvs(['rm', '-f', $file]) ||
- warn("cvs rm $file failed\n");
- }
- sub rcs_rename ($$) {
- # filenames relative to the root of the srcdir
- my ($src, $dest)=@_;
- return unless cvs_is_controlling;
- chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
- if (system("mv", "$src", "$dest") != 0) {
- warn("filesystem rename failed\n");
- }
- rcs_add($dest);
- rcs_remove($src);
- }
- sub rcs_recentchanges($) {
- my $num = shift;
- my @ret;
- return unless cvs_is_controlling;
- eval q{use Date::Parse};
- error($@) if $@;
- chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
- # There's no cvsps option to get the last N changesets.
- # Write full output to a temp file and read backwards.
- eval q{use File::Temp qw/tempfile/};
- error($@) if $@;
- eval q{use File::ReadBackwards};
- error($@) if $@;
- my (undef, $tmpfile) = tempfile(OPEN=>0);
- system("env TZ=UTC cvsps -q --cvs-direct -z 30 -x >$tmpfile");
- if ($? == -1) {
- error "couldn't run cvsps: $!\n";
- } elsif (($? >>8) != 0) {
- error "cvsps exited " . ($? >> 8) . ": $!\n";
- }
- tie(*SPSVC, 'File::ReadBackwards', $tmpfile)
- || error "couldn't open $tmpfile for read: $!\n";
- while (my $line = <SPSVC>) {
- $line =~ /^$/ || error "expected blank line, got $line";
- my ($rev, $user, $committype, $when);
- my (@message, @pages);
- # We're reading backwards.
- # Forwards, an entry looks like so:
- # ---------------------
- # PatchSet $rev
- # Date: $when
- # Author: $user (or user CGI runs as, for web commits)
- # Branch: branch
- # Tag: tag
- # Log:
- # @message_lines
- # Members:
- # @pages (and revisions)
- #
- while ($line = <SPSVC>) {
- last if ($line =~ /^Members:/);
- for ($line) {
- s/^\s+//;
- s/\s+$//;
- }
- my ($page, $revs) = split(/:/, $line);
- my ($oldrev, $newrev) = split(/->/, $revs);
- $oldrev =~ s/INITIAL/0/;
- $newrev =~ s/\(DEAD\)//;
- my $diffurl = defined $config{diffurl} ? $config{diffurl} : "";
- $diffurl=~s/\[\[file\]\]/$page/g;
- $diffurl=~s/\[\[r1\]\]/$oldrev/g;
- $diffurl=~s/\[\[r2\]\]/$newrev/g;
- unshift @pages, {
- page => pagename($page),
- diffurl => $diffurl,
- } if length $page;
- }
- while ($line = <SPSVC>) {
- last if ($line =~ /^Log:$/);
- chomp $line;
- unshift @message, { line => $line };
- }
- $committype = "web";
- if (defined $message[0] &&
- $message[0]->{line}=~/$config{web_commit_regexp}/) {
- $user=defined $2 ? "$2" : "$3";
- $message[0]->{line}=$4;
- } else {
- $committype="cvs";
- }
- $line = <SPSVC>; # Tag
- $line = <SPSVC>; # Branch
- $line = <SPSVC>;
- if ($line =~ /^Author: (.*)$/) {
- $user = $1 unless defined $user && length $user;
- } else {
- error "expected Author, got $line";
- }
- $line = <SPSVC>;
- if ($line =~ /^Date: (.*)$/) {
- $when = str2time($1, 'UTC');
- } else {
- error "expected Date, got $line";
- }
- $line = <SPSVC>;
- if ($line =~ /^PatchSet (.*)$/) {
- $rev = $1;
- } else {
- error "expected PatchSet, got $line";
- }
- $line = <SPSVC>; # ---------------------
- push @ret, {
- rev => $rev,
- user => $user,
- committype => $committype,
- when => $when,
- message => [@message],
- pages => [@pages],
- } if @pages;
- last if @ret >= $num;
- }
- unlink($tmpfile) || error "couldn't unlink $tmpfile: $!\n";
- return @ret;
- }
- sub rcs_diff ($) {
- my $rev=IkiWiki::possibly_foolish_untaint(int(shift));
- chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
- # diff output is unavoidably preceded by the cvsps PatchSet entry
- my @cvsps = `env TZ=UTC cvsps -q --cvs-direct -z 30 -g -s $rev`;
- my $blank_lines_seen = 0;
- while (my $line = shift @cvsps) {
- $blank_lines_seen++ if ($line =~ /^$/);
- last if $blank_lines_seen == 2;
- }
- if (wantarray) {
- return @cvsps;
- } else {
- return join("", @cvsps);
- }
- }
- sub rcs_getctime ($) {
- my $file=shift;
- my $cvs_log_infoline=qr/^date: (.+);\s+author/;
- open CVSLOG, "cvs -Q log -r1.1 '$file' |"
- || error "couldn't get cvs log output: $!\n";
- my $date;
- while (<CVSLOG>) {
- if (/$cvs_log_infoline/) {
- $date=$1;
- }
- }
- close CVSLOG || warn "cvs log $file exited $?";
- if (! defined $date) {
- warn "failed to parse cvs log for $file\n";
- return 0;
- }
- eval q{use Date::Parse};
- error($@) if $@;
- $date=str2time($date, 'UTC');
- debug("found ctime ".localtime($date)." for $file");
- return $date;
- }
- 1
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