lei import: support shell completion of known folders

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

diff --git a/lib/PublicInbox/LeiExternal.pm b/lib/PublicInbox/LeiExternal.pm
index 3858085ece8cc0c04e49164a0edcaf4b26161837..6fd3efef6cbd8f9259098f0a43faf2613cda9998 100644 (file)
--- a/lib/PublicInbox/LeiExternal.pm
+++ b/lib/PublicInbox/LeiExternal.pm
@@ -215,7 +215,8 @@ sub lei_forget_external {
        }
 }
 
-sub complete_url_common {
+# returns an anonymous sub which returns an array of potential results
+sub complete_url_prepare {
        my $argv = $_[-1];
        # Workaround bash word-splitting URLs to ['https', ':', '//' ...]
        # Maybe there's a better way to go about this in
@@ -239,37 +240,38 @@ sub complete_url_common {
                }
                $re = quotemeta($re);
        }
-       ($cur, $re);
+       my $match_cb = sub {
+               # only return the part specified on the CLI
+               # don't duplicate if already 100% completed
+               $_[0] =~ /\A$re(\Q$cur\E.*)/ ? ($cur eq $1 ? () : $1) : ()
+       };
+       wantarray ? ($re, $cur, $match_cb) : $match_cb;
 }
 
 # shell completion helper called by lei__complete
 sub _complete_forget_external {
        my ($self, @argv) = @_;
        my $cfg = $self->_lei_cfg;
-       my ($cur, $re) = complete_url_common(\@argv);
+       my ($cur, $re, $match_cb) = complete_url_prepare(\@argv);
        # FIXME: bash completion off "http:" or "https:" when the last
        # character is a colon doesn't work properly even if we're
        # returning "//$HTTP_HOST/$PATH_INFO/", not sure why, could
        # be a bash issue.
        map {
-               my $x = substr($_, length('external.'));
-               # only return the part specified on the CLI
-               # don't duplicate if already 100% completed
-               $x =~ /\A$re(\Q$cur\E.*)/ ? ($cur eq $1 ? () : $1) : ();
+               $match_cb->(substr($_, length('external.')));
        } grep(/\Aexternal\.$re\Q$cur/, @{$cfg->{-section_order}});
 }
 
 sub _complete_add_external { # for bash, this relies on "compopt -o nospace"
        my ($self, @argv) = @_;
        my $cfg = $self->_lei_cfg;
-       my ($cur, $re) = complete_url_common(\@argv);
+       my $match_cb = complete_url_prepare(\@argv);
        require URI;
        map {
                my $u = URI->new(substr($_, length('external.')));
                my ($base) = ($u->path =~ m!((?:/?.*)?/)[^/]+/?\z!);
                $u->path($base);
-               $u = $u->as_string;
-               $u =~ /\A$re(\Q$cur\E.*)/ ? ($cur eq $1 ? () : $1) : ();
+               $match_cb->($u->as_string);
        } grep(m!\Aexternal\.https?://!, @{$cfg->{-section_order}});
 }