Indentation

[ikiwiki.git] / IkiWiki / Plugin / calendar.pm

diff --git a/IkiWiki/Plugin/calendar.pm b/IkiWiki/Plugin/calendar.pm
index 185026d202a151bd9b210964491c60b69d6988df..83d65d0c3d07c05d08c959b4f5ab4e3674d97d2b 100644 (file)
--- a/IkiWiki/Plugin/calendar.pm
+++ b/IkiWiki/Plugin/calendar.pm
@@ -25,6 +25,7 @@ use Time::Local;
 
 my $time=time;
 my @now=localtime($time);
+my %changed;
 
 sub import {
        hook(type => "checkconfig", id => "calendar", call => \&checkconfig);
@@ -32,6 +33,7 @@ sub import {
        hook(type => "needsbuild", id => "calendar", call => \&needsbuild);
        hook(type => "preprocess", id => "calendar", call => \&preprocess);
        hook(type => "scan", id => "calendar", call => \&scan);
+       hook(type => "build_affected", id => "calendar", call => \&build_affected);
 
        IkiWiki::loadplugin("transient");
 }
@@ -104,6 +106,26 @@ sub month_days {
        return $days_in_month;
 }
 
+sub build_affected {
+       my %affected;
+       my ($ayear, $amonth, $valid);
+
+       foreach my $year (keys %changed) {
+               ($ayear, $valid) = nextyear($year, $config{archivebase});
+               $affected{calendarlink($ayear)} = sprintf(gettext("building calendar for %s, its previous or next year has changed"), $ayear) if ($valid);
+               ($ayear, $valid) = previousyear($year, $config{archivebase});
+               $affected{calendarlink($ayear)} = sprintf(gettext("building calendar for %s, its previous or next year has changed"), $ayear) if ($valid);
+               foreach my $month (keys $changed{$year}) {
+                       ($ayear, $amonth, $valid) = nextmonth($year, $month, $config{archivebase});
+                       $affected{calendarlink($ayear, sprintf("%02d", $amonth))} = sprintf(gettext("building calendar for %s/%s, its previous or next month has changed"), $amonth, $ayear) if ($valid);
+                       ($ayear, $amonth, $valid) = previousmonth($year, $month, $config{archivebase});
+                       $affected{calendarlink($ayear, sprintf("%02d", $amonth))} = sprintf(gettext("building calendar for %s/%s, its previous or next month has changed"), $amonth, $ayear) if ($valid);
+               }
+       }
+
+       return %affected;
+}
+
 sub autocreate {
        my ($page, $pagefile, $year, $month) = @_;
        my $message=sprintf(gettext("creating calendar page %s"), $page);
@@ -196,6 +218,66 @@ sub gencalendaryear {
        }
 }
 
+sub previousmonth($$$) {
+       my $year = shift;
+       my $month = shift;
+       my $archivebase = shift;
+
+       my $pmonth = $month;
+       my $pyear  = $year;
+       while ((not exists $pagesources{"$archivebase/$pyear/" . sprintf("%02d", $pmonth)}) or ($pmonth == $month and $pyear == $year)) {
+               $pmonth -= 1;
+               if ($pmonth == 0) {
+                       $pyear -= 1;
+                       $pmonth = 12;
+                       return ($pyear, $pmonth, 0) unless $pyear >= $wikistate{calendar}{minyear};
+               }
+       }
+       return ($pyear, $pmonth, 1);
+}
+
+sub nextmonth($$$) {
+       my $year = shift;
+       my $month = shift;
+       my $archivebase = shift;
+
+       my $nmonth = $month;
+       my $nyear  = $year;
+       while ((not exists $pagesources{"$archivebase/$nyear/" . sprintf("%02d", $nmonth)}) or ($nmonth == $month and $nyear == $year)) {
+               $nmonth += 1;
+               if ($nmonth == 13) {
+                       $nyear += 1;
+                       $nmonth = 1;
+                       return ($nyear, $nmonth, 0) unless $nyear <= $wikistate{calendar}{maxyear};
+               }
+       }
+       return ($nyear, $nmonth, 1);
+}
+
+sub previousyear($$) {
+       my $year = shift;
+       my $archivebase = shift;
+
+       my $pyear = $year - 1;
+       while (not exists $pagesources{"$archivebase/$pyear"}) {
+               $pyear -= 1;
+               return ($pyear, 0) unless ($pyear >= $wikistate{calendar}{minyear});
+       }
+       return ($pyear, 1);
+}
+
+sub nextyear($$) {
+       my $year = shift;
+       my $archivebase = shift;
+
+       my $nyear = $year + 1;
+       while (not exists $pagesources{"$archivebase/$nyear"}) {
+               $nyear += 1;
+               return ($nyear, 0) unless ($nyear <= $wikistate{calendar}{maxyear});
+       }
+       return ($nyear, 1);
+}
+
 sub format_month (@) {
        my %params=@_;
 
@@ -221,26 +303,9 @@ sub format_month (@) {
        my $archivebase = 'archives';
        $archivebase = $config{archivebase} if defined $config{archivebase};
        $archivebase = $params{archivebase} if defined $params{archivebase};
-  
-       my $pmonth = $params{month};
-       my $pyear  = $params{year};
-       while (((not exists $pagesources{"$archivebase/$pyear/" . sprintf("%02d", $pmonth)}) and ($pyear >= $wikistate{calendar}{minyear})) or ($pmonth == $params{month} and $pyear == $params{year})) {
-               $pmonth -= 1;
-               if ($pmonth == 0) {
-                       $pyear -= 1;
-                       $pmonth = 12;
-               }
-       }
-
-       my $nmonth = $params{month};
-       my $nyear  = $params{year};
-       while (((not exists $pagesources{"$archivebase/$nyear/" . sprintf("%02d", $nmonth)}) and ($nyear <= $wikistate{calendar}{maxyear})) or ($nmonth == $params{month} and $nyear == $params{year})) {
-               $nmonth += 1;
-               if ($nmonth == 13) {
-                       $nyear += 1;
-                       $nmonth = 1;
-               }
-       }
+       
+       my ($pyear, $pmonth, $pvalid) = previousmonth($params{year}, $params{month}, $archivebase);
+       my ($nyear, $nmonth, $nvalid) = nextmonth($params{year}, $params{month}, $archivebase);
 
        # Add padding.
        $pmonth=sprintf("%02d", $pmonth);
@@ -427,14 +492,8 @@ sub format_year (@) {
        $archivebase = $config{archivebase} if defined $config{archivebase};
        $archivebase = $params{archivebase} if defined $params{archivebase};
        
-       my $pyear = $params{year}  - 1;
-       while ((not exists $pagesources{"$archivebase/$pyear"}) and ($pyear > $wikistate{calendar}{minyear})) {
-               $pyear -= 1;
-       }
-       my $nyear = $params{year}  + 1;
-       while ((not exists $pagesources{"$archivebase/$nyear"}) and ($nyear < $wikistate{calendar}{maxyear})) {
-               $nyear += 1;
-       }
+       my ($pyear, $pvalid) = previousyear($params{year}, $archivebase);
+       my ($nyear, $nvalid) = nextyear($params{year}, $archivebase);
 
        my $thisyear = $now[5]+1900;
        my $future_month = 0;
@@ -569,6 +628,10 @@ sub preprocess (@) {
        }
        
        $params{month} = sprintf("%02d", $params{month});
+       if (not exists $changed{$params{year}}) {
+               $changed{$params{year}} = ();
+       }
+       $changed{$params{year}}{$params{month}} = 1;
        
        if ($params{type} eq 'month' && $params{year} == $thisyear
            && $params{month} == $thismonth) {