use IkiWiki;
use Encode;
-my %backlinks;
+my (%backlinks, %rendered, @new, @del, @internal, @internal_change, @files,
+ %page_exists, %oldlink_targets, @needsbuild, %backlinkchanged,
+ %linkchangers);
our %brokenlinks;
my $links_calculated=0;
sub scan ($) {
my $file=shift;
+ debug(sprintf(gettext("scanning %s"), $file));
+
my $type=pagetype($file);
if (defined $type) {
my $srcfile=srcfile($file);
}
}
-sub render ($) {
+sub render ($$) {
my $file=shift;
+ return if $rendered{$file};
+ debug(shift);
+ $rendered{$file}=1;
my $type=pagetype($file);
my $srcfile=srcfile($file);
}
sub find_src_files () {
- my (@files, %pages);
+ my @ret;
eval q{use File::Find};
error($@) if $@;
find({
}
else {
$f=~s/^\Q$config{srcdir}\E\/?//;
- push @files, $f;
- my $pagename = pagename($f);
- if ($pages{$pagename}) {
- debug(sprintf(gettext("%s has multiple possible source pages"), $pagename));
+ push @ret, $f;
+ my $page = pagename($f);
+ if ($page_exists{$page}) {
+ debug(sprintf(gettext("%s has multiple possible source pages"), $page));
}
- $pages{$pagename}=1;
+ $page_exists{$page}=1;
}
}
},
if (! -l "$config{srcdir}/$f" &&
! -e _) {
my $page=pagename($f);
- if (! $pages{$page}) {
- push @files, $f;
- $pages{$page}=1;
+ if (! $page_exists{$page}) {
+ push @ret, $f;
+ $page_exists{$page}=1;
}
}
}
},
}, $dir);
};
-
- # Returns a list of all source files found, and a hash of
- # the corresponding page names.
- return \@files, \%pages;
+ return \@ret;
}
-sub refresh () {
- srcdir_check();
- run_hooks(refresh => sub { shift->() });
- my ($files, $exists)=find_src_files();
-
- my (%rendered, @add, @del, @internal, @internal_change);
- # check for added or removed pages
- foreach my $file (@$files) {
+sub process_new_files () {
+ foreach my $file (@files) {
my $page=pagename($file);
if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
# the page has changed its type
push @internal, $file;
}
else {
- push @add, $file;
+ push @new, $file;
if ($config{getctime} && -e "$config{srcdir}/$file") {
eval {
my $time=rcs_getctime("$config{srcdir}/$file");
}
}
}
+}
+
+sub process_del_files () {
foreach my $page (keys %pagemtime) {
- if (! $exists->{$page}) {
+ if (! $page_exists{$page}) {
if (isinternal($page)) {
push @internal, $pagesources{$page};
}
}
}
}
+}
- # find changed and new files
- my @needsbuild;
- foreach my $file (@$files) {
+sub find_needsbuild () {
+ foreach my $file (@files) {
my $page=pagename($file);
my ($srcfile, @stat)=srcfile_stat($file);
if (! exists $pagemtime{$page} ||
$stat[9] > $pagemtime{$page} ||
$forcerebuild{$page}) {
$pagemtime{$page}=$stat[9];
+
if (isinternal($page)) {
- push @internal_change, $file;
# Preprocess internal page in scan-only mode.
preprocess($page, $page, readfile($srcfile), 1);
+ push @internal_change, $file;
}
else {
push @needsbuild, $file;
}
}
}
- run_hooks(needsbuild => sub { shift->(\@needsbuild) });
+}
- # scan and render files
- foreach my $file (@needsbuild) {
- debug(sprintf(gettext("scanning %s"), $file));
- scan($file);
+sub calculate_old_links () {
+ foreach my $file (@needsbuild, @del) {
+ my $page=pagename($file);
+ if (exists $oldlinks{$page}) {
+ foreach my $l (@{$oldlinks{$page}}) {
+ $oldlink_targets{$page}{$l}=bestlink($page, $l);
+ }
+ }
}
- calculate_links();
- foreach my $file (@needsbuild) {
- debug(sprintf(gettext("building %s"), $file));
- render($file);
- $rendered{$file}=1;
+}
+
+sub derender_internal ($) {
+ my $file=shift;
+ my $page=pagename($file);
+ delete $depends{$page};
+ delete $depends_simple{$page};
+ foreach my $old (@{$renderedfiles{$page}}) {
+ delete $destsources{$old};
}
- foreach my $file (@internal, @internal_change) {
- # internal pages are not rendered
- my $page=pagename($file);
- delete $depends{$page};
- delete $depends_simple{$page};
- foreach my $old (@{$renderedfiles{$page}}) {
- delete $destsources{$old};
+ $renderedfiles{$page}=[];
+}
+
+sub render_linkers () {
+ foreach my $f (@new, @del) {
+ my $p=pagename($f);
+ foreach my $page (keys %{$backlinks{$p}}) {
+ my $file=$pagesources{$page};
+ render($file, sprintf(gettext("building %s, which links to %s"), $file, $p));
}
- $renderedfiles{$page}=[];
}
-
- # rebuild pages that link to added or removed pages
- if (@add || @del) {
- foreach my $f (@add, @del) {
- my $p=pagename($f);
- foreach my $page (keys %{$backlinks{$p}}) {
- my $file=$pagesources{$page};
- next if $rendered{$file};
- debug(sprintf(gettext("building %s, which links to %s"), $file, $p));
- render($file);
- $rendered{$file}=1;
+}
+
+sub remove_unrendered () {
+ foreach my $src (keys %rendered) {
+ my $page=pagename($src);
+ foreach my $file (@{$oldrenderedfiles{$page}}) {
+ if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
+ debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
+ prune($config{destdir}."/".$file);
}
}
}
+}
- if (%rendered || @del || @internal || @internal_change) {
- my @changed;
- my $changes;
- do {
- $changes=0;
- @changed=(keys %rendered, @del);
- my @exists_changed=(@add, @del);
-
- my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
- my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
-
- # rebuild dependant pages
- foreach my $f (@$files) {
- next if $rendered{$f};
- my $p=pagename($f);
- my $reason = undef;
-
- if (exists $depends_simple{$p}) {
- foreach my $d (keys %{$depends_simple{$p}}) {
- if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
- exists $lc_changed{$d})
- ||
- ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
- exists $lc_exists_changed{$d})) {
- $reason = $d;
- last;
- }
- }
+sub calculate_changed_links () {
+ foreach my $file (@needsbuild, @del) {
+ my $page=pagename($file);
+ my %link_targets;
+ if (exists $links{$page}) {
+ foreach my $l (@{$links{$page}}) {
+ my $target=bestlink($page, $l);
+ if (! exists $oldlink_targets{$page}{$l} ||
+ $target ne $oldlink_targets{$page}{$l}) {
+ $backlinkchanged{$l}=1;
+ $linkchangers{lc($page)}=1;
}
+ delete $oldlink_targets{$page}{$l};
+ }
+ }
+ if (exists $oldlink_targets{$page} &&
+ %{$oldlink_targets{$page}}) {
+ foreach my $target (keys %{$oldlink_targets{$page}}) {
+ $backlinkchanged{$target}=1;
+ }
+ $linkchangers{lc($page)}=1;
+ }
+ }
+}
+
+sub render_dependent () {
+ my @changed=(keys %rendered, @del);
+ my @exists_changed=(@new, @del);
- if (exists $depends{$p} && ! defined $reason) {
- D: foreach my $d (keys %{$depends{$p}}) {
- my $sub=pagespec_translate($d);
- next if $@ || ! defined $sub;
-
- my @candidates;
- if ($depends{$p}{$d} & $IkiWiki::DEPEND_CONTENT) {
- @candidates=@changed;
- }
- elsif ($depends{$p}{$d} & $IkiWiki::DEPEND_PRESENCE) {
- @candidates=@exists_changed;
- }
- # only consider internal files
- # if the page explicitly depends
- # on such files
- if ($d =~ /internal\(/) {
- if ($depends{$p}{$d} & $IkiWiki::DEPEND_CONTENT) {
- push @candidates, @internal, @internal_change;
- }
- elsif ($depends{$p}{$d} & $IkiWiki::DEPEND_PRESENCE) {
- push @candidates, @internal;
- }
- }
-
- foreach my $file (@candidates) {
- next if $file eq $f;
- my $page=pagename($file);
- if ($sub->($page, location => $p)) {
- $reason = $page;
- last D;
- }
- }
- }
- }
+ my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
+ my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
+
+ foreach my $f (@files) {
+ next if $rendered{$f};
+ my $p=pagename($f);
+ my $reason = undef;
- if (defined $reason) {
- debug(sprintf(gettext("building %s, which depends on %s"), $f, $reason));
- render($f);
- $rendered{$f}=1;
- $changes++;
+ if (exists $depends_simple{$p}) {
+ foreach my $d (keys %{$depends_simple{$p}}) {
+ if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
+ $lc_changed{$d})
+ ||
+ ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
+ $lc_exists_changed{$d})
+ ||
+ ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
+ $linkchangers{$d})
+ ) {
+ $reason = $d;
last;
}
}
- } while $changes;
-
- # handle backlinks; if a page has added/removed links,
- # update the pages it links to
- my %linkchanged;
- foreach my $file (@changed) {
- my $page=pagename($file);
-
- if (exists $links{$page}) {
- foreach my $link (map { bestlink($page, $_) } @{$links{$page}}) {
- if (length $link &&
- (! exists $oldlinks{$page} ||
- ! grep { bestlink($page, $_) eq $link } @{$oldlinks{$page}})) {
- $linkchanged{$link}=1;
- }
+ }
+
+ if (exists $depends{$p} && ! defined $reason) {
+ D: foreach my $d (keys %{$depends{$p}}) {
+ my $sub=pagespec_translate($d);
+ next if $@ || ! defined $sub;
+
+ # only consider internal files
+ # if the page explicitly depends
+ # on such files
+ my $internal_dep=$d =~ /internal\(/;
+
+ my @candidates;
+ if ($depends{$p}{$d} & $IkiWiki::DEPEND_PRESENCE) {
+ @candidates=@exists_changed;
+ push @candidates, @internal
+ if $internal_dep;
}
- }
- if (exists $oldlinks{$page}) {
- foreach my $link (map { bestlink($page, $_) } @{$oldlinks{$page}}) {
- if (length $link &&
- (! exists $links{$page} ||
- ! grep { bestlink($page, $_) eq $link } @{$links{$page}})) {
- $linkchanged{$link}=1;
+ if (($depends{$p}{$d} & ($IkiWiki::DEPEND_CONTENT | $IkiWiki::DEPEND_LINKS))) {
+ @candidates=@changed;
+ push @candidates, @internal, @internal_change
+ if $internal_dep;
+ }
+
+ foreach my $file (@candidates) {
+ next if $file eq $f;
+ my $page=pagename($file);
+ if ($sub->($page, location => $p)) {
+ if ($depends{$p}{$d} & $IkiWiki::DEPEND_LINKS) {
+ next unless $linkchangers{lc($page)};
+ }
+ $reason = $page;
+ last D;
}
}
}
}
-
- foreach my $link (keys %linkchanged) {
- my $linkfile=$pagesources{$link};
- if (defined $linkfile) {
- next if $rendered{$linkfile};
- debug(sprintf(gettext("building %s, to update its backlinks"), $linkfile));
- render($linkfile);
- $rendered{$linkfile}=1;
- }
+
+ if (defined $reason) {
+ render($f, sprintf(gettext("building %s, which depends on %s"), $f, $reason));
+ return 1;
}
}
- # remove no longer rendered files
- foreach my $src (keys %rendered) {
- my $page=pagename($src);
- foreach my $file (@{$oldrenderedfiles{$page}}) {
- if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
- debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
- prune($config{destdir}."/".$file);
- }
+ return 0;
+}
+
+sub render_backlinks () {
+ foreach my $link (keys %backlinkchanged) {
+ my $linkfile=$pagesources{$link};
+ if (defined $linkfile) {
+ render($linkfile, sprintf(gettext("building %s, to update its backlinks"), $linkfile));
}
}
+}
+
+sub refresh () {
+ srcdir_check();
+ run_hooks(refresh => sub { shift->() });
+ @files=@{find_src_files()};
+ process_new_files();
+ process_del_files();
+ find_needsbuild();
+ run_hooks(needsbuild => sub { shift->(\@needsbuild) });
+ calculate_old_links();
+
+ foreach my $file (@needsbuild) {
+ scan($file);
+ }
+
+ calculate_links();
+
+ foreach my $file (@needsbuild) {
+ render($file, sprintf(gettext("building %s"), $file));
+ }
+
+ foreach my $file (@internal, @internal_change) {
+ derender_internal($file);
+ }
+
+ calculate_changed_links();
+ render_linkers();
+
+ if (@needsbuild || @del || @internal || @internal_change) {
+ 1 while render_dependent();
+ }
+
+ render_backlinks();
+ remove_unrendered();
if (@del) {
run_hooks(delete => sub { shift->(@del) });