X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/5bdcd4d57b2ca5dbf6e3d46a693cec4d27512020..ab768a62c66335a96a5791c444e54b8ae3b078b1:/IkiWiki/Plugin/cvs.pm

diff --git a/IkiWiki/Plugin/cvs.pm b/IkiWiki/Plugin/cvs.pm
index ac188d4a1..841aec914 100644
--- a/IkiWiki/Plugin/cvs.pm
+++ b/IkiWiki/Plugin/cvs.pm
@@ -1,14 +1,49 @@
-#!/usr/pkg/bin/perl
+#!/usr/bin/perl
 package IkiWiki::Plugin::cvs;
 
+# Copyright (c) 2009 Amitai Schlair
+# All rights reserved.
+#
+# This code is derived from software contributed to ikiwiki
+# by Amitai Schlair.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY IKIWIKI AND CONTRIBUTORS ``AS IS''
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
+# OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
 use warnings;
 use strict;
 use IkiWiki;
 
+use URI::Escape q{uri_escape_utf8};
+use File::chdir;
+
+
+# GENERAL PLUGIN API CALLS
+
 sub import {
-	hook(type => "getopt", id => "cvs", call => \&getopt);
 	hook(type => "checkconfig", id => "cvs", call => \&checkconfig);
 	hook(type => "getsetup", id => "cvs", call => \&getsetup);
+	hook(type => "genwrapper", id => "cvs", call => \&genwrapper);
+
 	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);
@@ -19,13 +54,7 @@ sub import {
 	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 getopt () {
-	# "cvs add dir" acts immediately on the repository.
-	# post-commit gets confused by this and doesn't need to act on it.
-	# If that's why we're here, terminate the process.
-	((grep /New directory/, @ARGV) > 0) && exit 0;
+	hook(type => "rcs", id => "rcs_getmtime", call => \&rcs_getmtime);
 }
 
 sub checkconfig () {
@@ -51,6 +80,7 @@ sub getsetup () {
 		plugin => {
 			safe => 0, # rcs plugin
 			rebuild => undef,
+			section => "rcs",
 		},
 		cvsrepo => {
 			type => "string",
@@ -69,7 +99,7 @@ sub getsetup () {
 		cvs_wrapper => {
 			type => "string",
 			example => "/cvs/wikirepo/CVSROOT/post-commit",
-			description => "cvs post-commit hook to generate (triggered by CVSROOT/loginfo entry",
+			description => "cvs post-commit hook to generate (triggered by CVSROOT/loginfo entry)",
 			safe => 0, # file
 			rebuild => 0,
 		},
@@ -96,59 +126,23 @@ sub getsetup () {
 		},
 }
 
-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}: $!");
-
-	debug("runcvs: " . join(" ", @$cmd));
-
-	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);
+sub genwrapper () {
+	return <<EOF;
+	{
+		int j;
+		for (j = 1; j < argc; j++)
+			if (strstr(argv[j], "New directory") != NULL)
+				exit(0);
 	}
-	return $success;
+EOF
 }
 
-sub cvs_shquote_commit ($) {
-	my $message = shift;
 
-	eval q{
-		use String::ShellQuote;
-	};
-	error($@) if $@;
-
-	return shell_quote(IkiWiki::possibly_foolish_untaint($message));
-}
-
-sub cvs_is_controlling {
-	my $dir=shift;
-	$dir=$config{srcdir} unless defined($dir);
-	return (-d "$dir/CVS") ? 1 : 0;
-}
+# VCS PLUGIN API CALLS
 
 sub rcs_update () {
-	return unless cvs_is_controlling;
-	cvs_runcvs(['update', '-dP']);
+	return unless cvs_is_controlling();
+	cvs_runcvs('update', '-dP');
 }
 
 sub rcs_prepedit ($) {
@@ -158,7 +152,7 @@ sub rcs_prepedit ($) {
 	# The file is relative to the srcdir.
 	my $file=shift;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
 	# For cvs, return the revision of the file when
 	# editing begins.
@@ -166,39 +160,29 @@ sub rcs_prepedit ($) {
 	return defined $rev ? $rev : "";
 }
 
-sub rcs_commit ($$$;$$) {
+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;
+	my %params=@_;
 
-	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" : "");
-	}
+	return unless cvs_is_controlling();
 
 	# 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}/$file");
+	my ($oldrev)=$params{token}=~/^([0-9]+)$/; # untaint
+	my $rev=cvs_info("Repository revision", "$config{srcdir}/$params{file}");
 	if (defined $rev && defined $oldrev && $rev != $oldrev) {
 		# Merge their changes into the file that we've
 		# changed.
-		cvs_runcvs(['update', $file]) ||
+		cvs_runcvs('update', $params{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]) ||
+	if (! cvs_runcvs('commit', '-m',
+			 IkiWiki::possibly_foolish_untaint(commitmessage(%params)))) {
+		my $conflict=readfile("$config{srcdir}/$params{file}");
+		cvs_runcvs('update', '-C', $params{file}) ||
 			warn("cvs revert failed\n");
 		return $conflict;
 	}
@@ -206,19 +190,13 @@ sub rcs_commit ($$$;$$) {
 	return undef # success
 }
 
-sub rcs_commit_staged ($$$) {
+sub rcs_commit_staged (@) {
 	# Commits all staged changes. Changes can be staged using rcs_add,
 	# rcs_remove, and rcs_rename.
-	my ($message, $user, $ipaddr)=@_;
+	my %params=@_;
 
-	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 $message])) {
+	if (! cvs_runcvs('commit', '-m',
+			 IkiWiki::possibly_foolish_untaint(commitmessage(%params)))) {
 		warn "cvs staged commit failed\n";
 		return 1; # failure
 	}
@@ -237,8 +215,14 @@ sub rcs_add ($) {
 	}
 
 	while ($file = pop @files_to_add) {
-		cvs_runcvs(['add', $file]) ||
-			warn("cvs add $file failed\n");
+		if (@files_to_add == 0) {
+			cvs_runcvs('add', cvs_keyword_subst_args($file)) ||
+				warn("cvs add file $file failed\n");
+		}
+		else {
+			cvs_runcvs('add', $file) ||
+				warn("cvs add dir $file failed\n");
+		}
 	}
 }
 
@@ -246,9 +230,9 @@ sub rcs_remove ($) {
 	# filename is relative to the root of the srcdir
 	my $file=shift;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
-	cvs_runcvs(['rm', '-f', $file]) ||
+	cvs_runcvs('rm', '-f', $file) ||
 		warn("cvs rm $file failed\n");
 }
 
@@ -256,9 +240,9 @@ sub rcs_rename ($$) {
 	# filenames relative to the root of the srcdir
 	my ($src, $dest)=@_;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
-	chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
+	local $CWD = $config{srcdir};
 
 	if (system("mv", "$src", "$dest") != 0) {
 		warn("filesystem rename failed\n");
@@ -268,24 +252,38 @@ sub rcs_rename ($$) {
 	rcs_remove($src);
 }
 
-sub rcs_recentchanges($) {
+sub rcs_recentchanges ($) {
 	my $num = shift;
 	my @ret;
 
-	return unless cvs_is_controlling;
+	return unless cvs_is_controlling();
 
-	eval q{
-		use Date::Parse;
-	};
+	eval q{use Date::Parse};
 	error($@) if $@;
 
-	chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
+	local $CWD = $config{srcdir};
+
+	# There's no cvsps option to get the last N changesets.
+	# Write full output to a temp file and read backwards.
+
+	eval q{use File::Temp qw/tempfile/};
+	error($@) if $@;
+	eval q{use File::ReadBackwards};
+	error($@) if $@;
+
+	my ($tmphandle, $tmpfile) = tempfile();
+	system("env TZ=UTC cvsps -q --cvs-direct -z 30 -x >$tmpfile");
+	if ($? == -1) {
+		error "couldn't run cvsps: $!\n";
+	}
+	elsif (($? >> 8) != 0) {
+		error "cvsps exited " . ($? >> 8) . ": $!\n";
+	}
 
-	open CVSPS, "env TZ=UTC cvsps -q --cvs-direct -z 30 -x |" || error "couldn't get cvsps output: $!\n";
-	my @spsvc = reverse <CVSPS>;		# is this great? no it is not
-	close CVSPS || error "couldn't close cvsps output: $!\n";
+	tie(*SPSVC, 'File::ReadBackwards', $tmpfile)
+		|| error "couldn't open $tmpfile for read: $!\n";
 
-	while (my $line = shift @spsvc) {
+	while (my $line = <SPSVC>) {
 		$line =~ /^$/ || error "expected blank line, got $line";
 
 		my ($rev, $user, $committype, $when);
@@ -305,7 +303,7 @@ sub rcs_recentchanges($) {
 		#	@pages (and revisions)
 		#
 
-		while ($line = shift @spsvc) {
+		while ($line = <SPSVC>) {
 			last if ($line =~ /^Members:/);
 			for ($line) {
 				s/^\s+//;
@@ -316,7 +314,10 @@ sub rcs_recentchanges($) {
 			$oldrev =~ s/INITIAL/0/;
 			$newrev =~ s/\(DEAD\)//;
 			my $diffurl = defined $config{diffurl} ? $config{diffurl} : "";
-			$diffurl=~s/\[\[file\]\]/$page/g;
+			my $epage = join('/',
+				map { uri_escape_utf8($_) } split('/', $page)
+			);
+			$diffurl=~s/\[\[file\]\]/$epage/g;
 			$diffurl=~s/\[\[r1\]\]/$oldrev/g;
 			$diffurl=~s/\[\[r2\]\]/$newrev/g;
 			unshift @pages, {
@@ -325,7 +326,7 @@ sub rcs_recentchanges($) {
 			} if length $page;
 		}
 
-		while ($line = shift @spsvc) {
+		while ($line = <SPSVC>) {
 			last if ($line =~ /^Log:$/);
 			chomp $line;
 			unshift @message, { line => $line };
@@ -335,35 +336,39 @@ sub rcs_recentchanges($) {
 		    $message[0]->{line}=~/$config{web_commit_regexp}/) {
 			$user=defined $2 ? "$2" : "$3";
 			$message[0]->{line}=$4;
-		} else {
+		}
+		else {
 			$committype="cvs";
 		}
 
-		$line = shift @spsvc;	# Tag
-		$line = shift @spsvc;	# Branch
+		$line = <SPSVC>;	# Tag
+		$line = <SPSVC>;	# Branch
 
-		$line = shift @spsvc;
+		$line = <SPSVC>;
 		if ($line =~ /^Author: (.*)$/) {
 			$user = $1 unless defined $user && length $user;
-		} else {
+		}
+		else {
 			error "expected Author, got $line";
 		}
 
-		$line = shift @spsvc;
+		$line = <SPSVC>;
 		if ($line =~ /^Date: (.*)$/) {
 			$when = str2time($1, 'UTC');
-		} else {
+		}
+		else {
 			error "expected Date, got $line";
 		}
 
-		$line = shift @spsvc;
+		$line = <SPSVC>;
 		if ($line =~ /^PatchSet (.*)$/) {
 			$rev = $1;
-		} else {
+		}
+		else {
 			error "expected PatchSet, got $line";
 		}
 
-		$line = shift @spsvc;	# ---------------------
+		$line = <SPSVC>;	# ---------------------
 
 		push @ret, {
 			rev => $rev,
@@ -373,29 +378,37 @@ sub rcs_recentchanges($) {
 			message => [@message],
 			pages => [@pages],
 		} if @pages;
-		return @ret if @ret >= $num;
+		last if @ret >= $num;
 	}
 
+	unlink($tmpfile) || error "couldn't unlink $tmpfile: $!\n";
+
 	return @ret;
 }
 
-sub rcs_diff ($) {
+sub rcs_diff ($;$) {
 	my $rev=IkiWiki::possibly_foolish_untaint(int(shift));
+	my $maxlines=shift;
 
-	chdir $config{srcdir} || error("Cannot chdir to $config{srcdir}: $!");
+	local $CWD = $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;
 
+	# skip log, get to the diff
 	while (my $line = shift @cvsps) {
 		$blank_lines_seen++ if ($line =~ /^$/);
 		last if $blank_lines_seen == 2;
 	}
 
+	@cvsps = @cvsps[0..$maxlines-1]
+		if defined $maxlines && @cvsps > $maxlines;
+
 	if (wantarray) {
 		return @cvsps;
-	} else {
+	}
+	else {
 		return join("", @cvsps);
 	}
 }
@@ -403,6 +416,8 @@ sub rcs_diff ($) {
 sub rcs_getctime ($) {
 	my $file=shift;
 
+	local $CWD = $config{srcdir};
+
 	my $cvs_log_infoline=qr/^date: (.+);\s+author/;
 
 	open CVSLOG, "cvs -Q log -r1.1 '$file' |"
@@ -428,4 +443,107 @@ sub rcs_getctime ($) {
 	return $date;
 }
 
+sub rcs_getmtime ($) {
+	error "rcs_getmtime is not implemented for cvs\n"; # TODO
+}
+
+
+# INTERNAL SUPPORT ROUTINES
+
+sub commitmessage (@) {
+	my %params=@_;
+
+	if (defined $params{session}) {
+		if (defined $params{session}->param("name")) {
+			return "web commit by ".
+				$params{session}->param("name").
+				(length $params{message} ? ": $params{message}" : "");
+		}
+		elsif (defined $params{session}->remote_addr()) {
+			return "web commit from ".
+				$params{session}->remote_addr().
+				(length $params{message} ? ": $params{message}" : "");
+		}
+	}
+	return $params{message};
+}
+
+sub cvs_info ($$) {
+	my $field=shift;
+	my $file=shift;
+
+	local $CWD = $config{srcdir};
+
+	my $info=`cvs status $file`;
+	my ($ret)=$info=~/^\s*$field:\s*(\S+)/m;
+	return $ret;
+}
+
+sub cvs_is_controlling {
+	my $dir=shift;
+	$dir=$config{srcdir} unless defined($dir);
+	return (-d "$dir/CVS") ? 1 : 0;
+}
+
+sub cvs_keyword_subst_args ($) {
+	my $file = shift;
+
+	local $CWD = $config{srcdir};
+
+	eval q{use File::MimeInfo};
+	error($@) if $@;
+	my $filemime = File::MimeInfo::default($file);
+	# if (-T $file) {
+
+	defined($filemime) && $filemime eq 'text/plain'
+		? return ('-kkv', $file)
+		: return ('-kb', $file);
+}
+
+sub cvs_runcvs(@) {
+	my @cmd = @_;
+	unshift @cmd, 'cvs', '-Q';
+
+	# CVS can't operate outside a srcdir, so we're always setting $CWD.
+	# "local $CWD" restores the previous value when we go out of scope.
+	# Usually that's correct. But if we're removing the last file from
+	# a directory, the post-commit hook will exec in a working directory
+	# that's about to not exist (CVS will prune it).
+	#
+	# chdir() manually here, so we can selectively not chdir() back.
+
+	my $oldcwd = $CWD;
+	chdir($config{srcdir});
+
+	eval q{
+		use IPC::Open3;
+		use Symbol qw(gensym);
+		use IO::File;
+	};
+	error($@) if $@;
+
+	my $cvsout = '';
+	my $cvserr = '';
+	local *CATCHERR = IO::File->new_tmpfile;
+	my $pid = open3(gensym(), \*CATCHOUT, ">&CATCHERR", @cmd);
+	while (my $l = <CATCHOUT>) {
+		$cvsout .= $l
+			unless 1;
+	}
+	waitpid($pid, 0);
+	my $ret = $? >> 8;
+	seek CATCHERR, 0, 0;
+	while (my $l = <CATCHERR>) {
+		$cvserr .= $l
+			unless $l =~ /^cvs commit: changing keyword expansion /;
+	}
+
+	print STDOUT $cvsout;
+	print STDERR $cvserr;
+
+	chdir($oldcwd) if -d $oldcwd;
+
+	return ($ret == 0) ? 1 : 0;
+}
+
 1