X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/7a8b492bcce45123cef45ebe6f97cd70b38b9db7..d5f014449511460d4da22591379b30bd5de86145:/IkiWiki.pm?ds=inline

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 7b1d24c6a..c735b26c8 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -17,11 +17,12 @@ use vars qw{%config %links %oldlinks %pagemtime %pagectime %pagecase
 	    %forcerebuild %loaded_plugins};
 
 use Exporter q{import};
-our @EXPORT = qw(hook debug error template htmlpage add_depends pagespec_match
-                 pagespec_match_list bestlink htmllink readfile writefile
-		 pagetype srcfile pagename displaytime will_render gettext urlto
-		 targetpage add_underlay pagetitle titlepage linkpage
-		 newpagefile inject add_link
+our @EXPORT = qw(hook debug error template htmlpage deptype use_pagespec
+                 add_depends pagespec_match pagespec_match_list bestlink
+		 htmllink readfile writefile pagetype srcfile pagename
+		 displaytime will_render gettext urlto targetpage
+		 add_underlay pagetitle titlepage linkpage newpagefile
+		 inject add_link
                  %config %links %pagestate %wikistate %renderedfiles
                  %pagesources %destsources);
 our $VERSION = 3.00; # plugin interface version, next is ikiwiki version
@@ -1768,59 +1769,135 @@ sub rcs_receive () {
 	$hooks{rcs}{rcs_receive}{call}->();
 }
 
-sub add_depends ($$;@) {
+sub add_depends ($$;$) {
 	my $page=shift;
 	my $pagespec=shift;
+	my $deptype=shift || $DEPEND_CONTENT;
 
 	# Is the pagespec a simple page name?
-	my $simple=$pagespec =~ /$config{wiki_file_regexp}/ &&
-		$pagespec !~ /[\s*?()!]/;
+	if ($pagespec =~ /$config{wiki_file_regexp}/ &&
+	    $pagespec !~ /[\s*?()!]/) {
+		$depends_simple{$page}{lc $pagespec} |= $deptype;
+		return 1;
+	}
 
-	my $deptype=0;
-	if (@_) {
-		my %params=@_;
-		
-		if ($params{presence}) {
- 			# Is the pagespec limited to terms that will continue
-			# to match pages as long as those pages exist?
-			my $presence_limited=1;
-			while ($presence_limited && $pagespec=~m/(\w+)\([^\)]*\)/g) {
-				$presence_limited = $1 =~ /^(glob|internal|creation_month|creation_day|creation_year|created_before|created_after)$/;
-			}
-			if ($presence_limited) {
-				$deptype=$deptype | $DEPEND_PRESENCE;
-			}
-			else {
-				$deptype=$deptype | $DEPEND_CONTENT;
-			}
+	# Analyse the pagespec, and match it against all pages
+	# to get a list of influences, and add explicit dependencies
+	# for those.
+	#my $sub=pagespec_translate($pagespec);
+	#return if $@;
+	#foreach my $p (keys %pagesources) {
+	#	my $r=$sub->($p, location => $page );
+	#	my %i=$r->influences;
+	#	foreach my $i (keys %i) {
+	#		$depends_simple{$page}{lc $i} |= $i{$i};
+	#	}
+	#}
+	print STDERR "warning: use of add_depends; influences not tracked\n";
+
+	$depends{$page}{$pagespec} |= $deptype;
+	return 1;
+}
+
+sub use_pagespec ($$;@) {
+	my $page=shift;
+	my $pagespec=shift;
+	my %params=@_;
+
+	my $sub=pagespec_translate($pagespec);
+	error "syntax error in pagespec \"$pagespec\""
+		if $@ || ! defined $sub;
+
+	my @candidates;
+	if (exists $params{limit}) {
+		@candidates=grep { $params{limit}->($_) } keys %pagesources;
+	}
+	else {
+		@candidates=keys %pagesources;
+	}
+
+	if (defined $params{sort}) {
+		my $f;
+		if ($params{sort} eq 'title') {
+			$f=sub { pagetitle(basename($a)) cmp pagetitle(basename($b)) };
 		}
-		if ($params{links}) {
- 			# Is the pagespec limited to terms that will continue
-			# to match pages as long as those pages exist and
-			# link to the same places?
-			my $links_limited=1;
-			while ($links_limited && $pagespec=~m/(\w+)\([^\)]*\)/g) {
-				$links_limited = $1 =~ /^(glob|internal|creation_month|creation_day|creation_year|created_before|created_after|backlink)$/;
-			}
-			if ($links_limited) {
-				$deptype=$deptype | $DEPEND_LINKS;
+		elsif ($params{sort} eq 'title_natural') {
+			eval q{use Sort::Naturally};
+			if ($@) {
+				error(gettext("Sort::Naturally needed for title_natural sort"));
 			}
-			else {
-				$deptype=$deptype | $DEPEND_CONTENT;
+			$f=sub { Sort::Naturally::ncmp(pagetitle(basename($a)), pagetitle(basename($b))) };
+                }
+		elsif ($params{sort} eq 'mtime') {
+			$f=sub { $pagemtime{$b} <=> $pagemtime{$a} };
+		}
+		elsif ($params{sort} eq 'age') {
+			$f=sub { $pagectime{$b} <=> $pagectime{$a} };
+		}
+		else {
+			error sprintf(gettext("unknown sort type %s"), $params{sort});
+		}
+		@candidates = sort { &$f } @candidates;
+	}
+
+	@candidates=reverse(@candidates) if $params{reverse};
+	
+	my @matches;
+	my $firstfail;
+	my $count=0;
+	foreach my $p (@candidates) {
+		my $r=$sub->($p, location => $page);
+		if ($r) {
+			push @matches, [$p, $r];
+			last if defined $params{num} && ++$count == $params{num};
+		}
+		elsif (! defined $firstfail) {
+			$firstfail=$r;
+		}
+	}
+	
+	$depends{$page}{$pagespec} |= ($params{deptype} || $DEPEND_CONTENT);
+
+	my @ret;
+	if (@matches) {
+		# Add all influences from successful matches.
+		foreach my $m (@matches) {
+			push @ret, $m->[0];
+			my %i=$m->[1]->influences;
+			foreach my $i (keys %i) {
+				$depends_simple{$page}{lc $i} |= $i{$i};
 			}
 		}
 	}
-	$deptype=$DEPEND_CONTENT unless $deptype;
+	elsif (defined $firstfail) {
+		# Add influences from one failure. (Which one should not
+		# matter; all should have the same influences.)
+		my %i=$firstfail->influences;
+		foreach my $i (keys %i) {
+			$depends_simple{$page}{lc $i} |= $i{$i};
+		}
 
-	if ($simple) {
-		$depends_simple{$page}{lc $pagespec} |= $deptype;
-		return 1;
+		error(sprintf(gettext("cannot match pages: %s"), $firstfail))
+			if $firstfail->isa("IkiWiki::ErrorReason");
 	}
 
-	return unless pagespec_valid($pagespec);
+	return @ret;
+}
 
-	$depends{$page}{$pagespec} |= $deptype;
-	return 1;
+sub deptype (@) {
+	my $deptype=0;
+	foreach my $type (@_) {
+		if ($type eq 'presence') {
+			$deptype |= $DEPEND_PRESENCE;
+		}
+		elsif ($type eq 'links') { 
+			$deptype |= $DEPEND_LINKS;
+		}
+		elsif ($type eq 'content') {
+			$deptype |= $DEPEND_CONTENT;
+		}
+	}
+	return $deptype;
 }
 
 sub file_pruned ($$) {
@@ -1926,10 +2003,10 @@ sub pagespec_translate ($) {
 	}gx) {
 		my $word=$1;
 		if (lc $word eq 'and') {
-			$code.=' &&';
+			$code.=' &';
 		}
 		elsif (lc $word eq 'or') {
-			$code.=' ||';
+			$code.=' |';
 		}
 		elsif ($word eq "(" || $word eq ")" || $word eq "!") {
 			$code.=' '.$word;
@@ -2015,36 +2092,54 @@ sub glob2re ($) {
 package IkiWiki::FailReason;
 
 use overload (
-	'""'	=> sub { ${$_[0]} },
+	'""'	=> sub { $_[0][0] },
 	'0+'	=> sub { 0 },
 	'!'	=> sub { bless $_[0], 'IkiWiki::SuccessReason'},
+	'&'	=> sub { $_[0]->merge_influences($_[1]); $_[0] },
+	'|'	=> sub { $_[1]->merge_influences($_[0]); $_[1] },
 	fallback => 1,
 );
 
-sub new {
-	my $class = shift;
-	my $value = shift;
-	return bless \$value, $class;
-}
-
-package IkiWiki::ErrorReason;
-
-our @ISA = 'IkiWiki::FailReason';
+our @ISA = 'IkiWiki::SuccessReason';
 
 package IkiWiki::SuccessReason;
 
 use overload (
-	'""'	=> sub { ${$_[0]} },
+	'""'	=> sub { $_[0][0] },
 	'0+'	=> sub { 1 },
 	'!'	=> sub { bless $_[0], 'IkiWiki::FailReason'},
+	'&'	=> sub { $_[1]->merge_influences($_[0]); $_[1] },
+	'|'	=> sub { $_[0]->merge_influences($_[1]); $_[0] },
 	fallback => 1,
 );
 
 sub new {
 	my $class = shift;
 	my $value = shift;
-	return bless \$value, $class;
-};
+	return bless [$value, {@_}], $class;
+}
+
+sub influences {
+	my $this=shift;
+	if (! @_) {
+		return %{$this->[1]};
+	}
+	else {
+		$this->[1]={@_};
+	}
+}
+
+sub merge_influences {
+	my $this=shift;
+	my $other=shift;
+	foreach my $influence (keys %{$other->[1]}) {
+		$this->[1]{$influence} |= $other->[1]{$influence};
+	}
+}
+
+package IkiWiki::ErrorReason;
+
+our @ISA = 'IkiWiki::FailReason';
 
 package IkiWiki::PageSpec;
 
@@ -2095,19 +2190,20 @@ sub match_link ($$;@) {
 	my $from=exists $params{location} ? $params{location} : '';
 
 	my $links = $IkiWiki::links{$page};
-	return IkiWiki::FailReason->new("$page has no links") unless $links && @{$links};
+	return IkiWiki::FailReason->new("$page has no links")
+		unless $links && @{$links};
 	my $bestlink = IkiWiki::bestlink($from, $link);
 	foreach my $p (@{$links}) {
 		if (length $bestlink) {
-			return IkiWiki::SuccessReason->new("$page links to $link")
+			return IkiWiki::SuccessReason->new("$page links to $link", $page => $IkiWiki::DEPEND_LINKS)
 				if $bestlink eq IkiWiki::bestlink($page, $p);
 		}
 		else {
-			return IkiWiki::SuccessReason->new("$page links to page $p matching $link")
+			return IkiWiki::SuccessReason->new("$page links to page $p matching $link", $page => $IkiWiki::DEPEND_LINKS)
 				if match_glob($p, $link, %params);
 			my ($p_rel)=$p=~/^\/?(.*)/;
 			$link=~s/^\///;
-			return IkiWiki::SuccessReason->new("$page links to page $p_rel matching $link")
+			return IkiWiki::SuccessReason->new("$page links to page $p_rel matching $link", $page => $IkiWiki::DEPEND_LINKS)
 				if match_glob($p_rel, $link, %params);
 		}
 	}
@@ -2115,7 +2211,9 @@ sub match_link ($$;@) {
 }
 
 sub match_backlink ($$;@) {
-	return match_link($_[1], $_[0], @_);
+	my $ret=match_link($_[1], $_[0], @_);
+	$ret->influences($_[1] => $IkiWiki::DEPEND_LINKS);
+	return $ret;
 }
 
 sub match_created_before ($$;@) {
@@ -2127,14 +2225,14 @@ sub match_created_before ($$;@) {
 
 	if (exists $IkiWiki::pagectime{$testpage}) {
 		if ($IkiWiki::pagectime{$page} < $IkiWiki::pagectime{$testpage}) {
-			return IkiWiki::SuccessReason->new("$page created before $testpage");
+			return IkiWiki::SuccessReason->new("$page created before $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
 		}
 		else {
-			return IkiWiki::FailReason->new("$page not created before $testpage");
+			return IkiWiki::FailReason->new("$page not created before $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
 		}
 	}
 	else {
-		return IkiWiki::ErrorReason->new("$testpage does not exist");
+		return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);
 	}
 }
 
@@ -2147,14 +2245,14 @@ sub match_created_after ($$;@) {
 
 	if (exists $IkiWiki::pagectime{$testpage}) {
 		if ($IkiWiki::pagectime{$page} > $IkiWiki::pagectime{$testpage}) {
-			return IkiWiki::SuccessReason->new("$page created after $testpage");
+			return IkiWiki::SuccessReason->new("$page created after $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
 		}
 		else {
-			return IkiWiki::FailReason->new("$page not created after $testpage");
+			return IkiWiki::FailReason->new("$page not created after $testpage", $testpage => $IkiWiki::DEPEND_PRESENCE);
 		}
 	}
 	else {
-		return IkiWiki::ErrorReason->new("$testpage does not exist");
+		return IkiWiki::ErrorReason->new("$testpage does not exist", $testpage => $IkiWiki::DEPEND_PRESENCE);
 	}
 }