lei: help starts pager

[public-inbox.git] / lib / PublicInbox / LeiExternal.pm

diff --git a/lib/PublicInbox/LeiExternal.pm b/lib/PublicInbox/LeiExternal.pm
index b11768246762c70120a330b863ea467da9499398..6b4c7fb0334388e2dabdf95a4f98e71a9f0ec72a 100644 (file)
--- a/lib/PublicInbox/LeiExternal.pm
+++ b/lib/PublicInbox/LeiExternal.pm
@@ -9,7 +9,7 @@ use parent qw(Exporter);
 our @EXPORT = qw(lei_ls_external lei_add_external lei_forget_external);
 use PublicInbox::Config;
 
-sub _externals_each {
+sub externals_each {
        my ($self, $cb, @arg) = @_;
        my $cfg = $self->_lei_cfg(0);
        my %boost;
@@ -32,13 +32,13 @@ sub _externals_each {
 sub lei_ls_external {
        my ($self, @argv) = @_;
        my ($OFS, $ORS) = $self->{opt}->{z} ? ("\0", "\0\0") : (" ", "\n");
-       $self->_externals_each(sub {
+       externals_each($self, sub {
                my ($loc, $boost_val) = @_;
                $self->out($loc, $OFS, 'boost=', $boost_val, $ORS);
        });
 }
 
-sub _canonicalize {
+sub ext_canonicalize {
        my ($location) = @_;
        if ($location !~ m!\Ahttps?://!) {
                PublicInbox::Config::rel2abs_collapsed($location);
@@ -52,11 +52,47 @@ sub _canonicalize {
        }
 }
 
+my %patmap = ('*' => '[^/]*?', '?' => '[^/]', '[' => '[', ']' => ']');
+sub glob2pat {
+       my ($glob) = @_;
+        $glob =~ s!(.)!$patmap{$1} || "\Q$1"!ge;
+        $glob;
+}
+
+sub get_externals {
+       my ($self, $loc, $exclude) = @_;
+       return (ext_canonicalize($loc)) if -e $loc;
+
+       my @m;
+       my @cur = externals_each($self);
+       my $do_glob = !$self->{opt}->{globoff}; # glob by default
+       if ($do_glob && ($loc =~ /[\*\?]/s || $loc =~ /\[.*\]/s)) {
+               my $re = glob2pat($loc);
+               @m = grep(m!$re!, @cur);
+               return @m if scalar(@m);
+       } elsif (index($loc, '/') < 0) { # exact basename match:
+               @m = grep(m!/\Q$loc\E/?\z!, @cur);
+               return @m if scalar(@m) == 1;
+       } elsif ($exclude) { # URL, maybe:
+               my $canon = ext_canonicalize($loc);
+               @m = grep(m!\A\Q$canon\E\z!, @cur);
+               return @m if scalar(@m) == 1;
+       } else { # URL:
+               return (ext_canonicalize($loc));
+       }
+       if (scalar(@m) == 0) {
+               $self->fail("`$loc' is unknown");
+       } else {
+               $self->fail("`$loc' is ambiguous:\n", map { "\t$_\n" } @m);
+       }
+       ();
+}
+
 sub lei_add_external {
        my ($self, $location) = @_;
        my $cfg = $self->_lei_cfg(1);
        my $new_boost = $self->{opt}->{boost} // 0;
-       $location = _canonicalize($location);
+       $location = ext_canonicalize($location);
        if ($location !~ m!\Ahttps?://! && !-d $location) {
                return $self->fail("$location not a directory");
        }
@@ -74,7 +110,7 @@ sub lei_forget_external {
        my %seen;
        for my $loc (@locations) {
                my (@unset, @not_found);
-               for my $l ($loc, _canonicalize($loc)) {
+               for my $l ($loc, ext_canonicalize($loc)) {
                        next if $seen{$l}++;
                        my $key = "external.$l.boost";
                        delete($cfg->{$key});