X-Git-Url: https://git.madduck.net/code/myrepos.git/blobdiff_plain/4d25de5c4ddfe4ad14823b550a0903e594207774..e8a3c7466e3764dde7350f332976b0fafed40d4c:/webcheckout

diff --git a/webcheckout b/webcheckout
index 19d4620..0c93eef 100755
--- a/webcheckout
+++ b/webcheckout
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-debcheckout - check out repositories referenced on a web page
+webcheckout - check out repositories referenced on a web page
 
 =head1 SYNOPSIS
 
@@ -16,7 +16,7 @@ a subdirectory of the current directory, using whatever VCS program is
 appropriate for that repository (git, svn, etc).
 
 The information about the repositories is embedded in the web page using
-the rel=vcs microformat, which is documented at
+the rel=vcs-* microformat, which is documented at
 <http://kitenet.net/~joey/rfc/rel-vcs/>.
 
 If the optional destdir parameter is specified, VCS programs will be asked
@@ -35,18 +35,26 @@ anonymous repositories when possible. If you have an account that
 allows you to use authenticated repositories, you might want to use this
 option.
 
-=item -n
+=item --no-act, -n
 
 Do not actually check anything out, just print out the commands that would
 be run to check out the repositories.
 
-=item -q
+=item --quiet, -q
 
 Quiet mode. Do not print out the commands being run. (The VCS commands
 may still be noisy however.)
 
 =back
 
+=head1 PREREQUISITES
+
+To use this program you will need lots of VCS programs installed,
+obviously. It also depends on the perl LWP and HTML::Parser modules.
+
+If the perl URI module is installed, webcheckout can heuristically guess
+what you mean by partial URLs, such as "kitenet.net/~joey"'
+
 =head1 AUTHOR
 
 Copyright 2009 Joey Hess <joey@kitenet.net>
@@ -75,7 +83,7 @@ my $noact=0;
 # Controls whether to perfer repos that use authentication.
 my $want_auth=0;
 
-# Controls where to check out to. If not set, the vcs is allowed to
+# Controls where to check out to. If not set, the VCS is allowed to
 # decide.
 my $destdir;
 
@@ -111,6 +119,11 @@ sub getopts {
 	$url=shift @ARGV;
 	$destdir=shift @ARGV;
 
+	eval q{use URI::Heuristic};
+	if (! $@) {
+		$url=URI::Heuristic::uf_uristr($url);
+	}
+
 	if ($noact) {
 		$quiet=0;
 	}
@@ -127,23 +140,26 @@ sub doit {
 sub better {
 	my ($a, $b)=@_;
 
-	my $firstanon=$b;
+	my @anon;
 	foreach my $r (@anon_urls) {
 		if ($a->{href} =~ /$r/) {
-			$firstanon=$a;
-			last;
+			push @anon, $a;
 		}
 		elsif ($b->{href} =~ /$r/) {
-			$firstanon=$b;
-			last;
+			push @anon, $b;
 		}
 	}
 
 	if ($want_auth) {
-		return $firstanon != $a;
+		# Whichever is authed is better.
+		return 1 if ! @anon || ! grep { $_ eq $a } @anon;
+		return 0 if ! grep { $_ eq $b } @anon;
+		# Neither is authed, so the better anon method wins.
+		return $anon[0] == $a;
 	}
 	else {
-		return $firstanon == $a;
+		# Better anon method wins.
+		return @anon && $anon[0] == $a;
 	}
 }
 
@@ -152,21 +168,26 @@ sub better {
 sub dedup {
 	my %seenhref;
 	my %bytitle;
+	my @others;
 	foreach my $repo (@_) {
 		if (exists $repo->{title} &&
-		    length $repo->{title} &&
-		    exists $bytitle{$repo->{title}}) {
-			my $other=$bytitle{$repo->{title}};
-			next unless better($repo, $other);
-			delete $bytitle{$other->{title}}
+		    length $repo->{title}) {
+		 	if (exists $bytitle{$repo->{title}}) {
+				my $other=$bytitle{$repo->{title}};
+				next unless better($repo, $other);
+				delete $bytitle{$other->{title}}
+			}
+
+			if (! $seenhref{$repo->{href}}++) {
+				$bytitle{$repo->{title}}=$repo;
+			}
 		}
-
-		if (! $seenhref{$repo->{href}}++) {
-			$bytitle{$repo->{title}}=$repo;
+		else {
+			push @others, $repo;
 		}
 	}
 
-	return values %bytitle;
+	return values %bytitle, @others;
 }
 
 sub parse {
@@ -174,15 +195,38 @@ sub parse {
 
 	my @ret;
 	my $parser=HTML::Parser->new(api_version => 3);
+	my $abody=undef;
+	my $aref=undef;
 	$parser->handler(start => sub {
 		my $tagname=shift;
 		my $attr=shift;
-		return if lc $tagname ne 'link';
-		return if ! exists $attr->{rel} || lc $attr->{rel} ne 'vcs';
+
 		return if ! exists $attr->{href} || ! length $attr->{href};
-		return if ! exists $attr->{type} || ! length $attr->{type};
+		return if ! exists $attr->{rel} || $attr->{rel} !~ /^vcs-(.+)/i;
+		$attr->{type}=lc($1);
+
+		# need to collect the body of the <a> tag if there is no title
+		if ($tagname eq "a" && ! exists $attr->{title}) {
+			$abody="";
+			$aref=$attr;
+		}
+
 		push @ret, $attr;
 	}, "tagname, attr");
+	$parser->handler(text => sub {
+		if (defined $aref) {
+			$abody.=join(" ", @_);
+		}
+	}, "text");
+	$parser->handler(end => sub {
+		my $tagname=shift;
+		if ($tagname eq "a" && defined $aref) {
+			$aref->{title}=$abody;
+			$aref=undef;
+			$abody=undef;
+		}
+	}, "tagname");
+	$parser->report_tags(qw{link a});
 	$parser->parse($page);
 	$parser->eof;
 
@@ -190,7 +234,6 @@ sub parse {
 }
 
 getopts();
-print "$url\n";
 
 my $page=get($url);
 if (! defined $page) {
@@ -202,10 +245,16 @@ if (! @repos) {
 	die "no repositories found on $url\n";
 }
 
+#use Data::Dumper;
+#print Dumper(\@repos);
+#exit;
+
 if (defined $destdir && @repos > 1) {
 	# create subdirs of $destdir for the multiple repos
-	mkdir($destdir);
-	chdir($destdir) || die "failed to chdir to $destdir: $!";
+	if (! $noact) {
+		mkdir($destdir);
+		chdir($destdir) || die "failed to chdir to $destdir: $!";
+	}
 	$destdir=undef;
 }
 
@@ -225,6 +274,3 @@ foreach my $repo (@repos) {
 	}
 }
 exit($errors > 0);
-
-#use Data::Dumper;
-#print Dumper(\@repos);