detect dash-el and s-el dependencies

1 files changed, 18 insertions, 2 deletions

diff --git a/lib/DhMakeELPA/Command/make.pm b/lib/DhMakeELPA/Command/make.pm
index 3f7818d..2a1673f 100644
--- a/lib/DhMakeELPA/Command/make.pm
+++ b/lib/DhMakeELPA/Command/make.pm
@@ -2,10 +2,12 @@ package DhMakeELPA::Command::make;
 
 use strict;
 use warnings;
+no warnings "experimental::smartmatch";
 
 use Debian::Control;
 use File::Spec::Functions qw(catfile);
 use Email::Date::Format qw(email_date);
+use File::Grep qw(fgrep);
 
 use base 'DhMakeELPA::Command::Packaging';
 
@@ -57,10 +59,24 @@ sub create_control {
     $self->fill_vcs();
 
     foreach my $bin (keys %{$self->bins}) {
-        my ($short_desc, $long_desc) = $self->extract_description( $self->main_file("$bin.el") );
+        my @files = @{$self->bins->{$bin}};
+        # resolve special case so we can use fgrep
+        @files = glob($self->main_dir . "/*.el")
+          if ( @files ~~ ["*.el"] );
+
+        my ($short_desc, $long_desc) =
+          $self->extract_description( $self->main_file("$bin.el") );
+        my $depends = '${misc:Depends}, emacs, ${elpa:Depends}';
+
+        # append depends that aren't included in ${elpa:Depends}
+        $depends .= ", dash-el"
+          if fgrep { /^;; Package-Requires: .*\(dash \"/ } @files;
+        $depends .= ", s-el"
+          if fgrep { /^;; Package-Requires: .*\(s \"/ } @files;
+
         my $stanza = { Package           => "elpa-$bin",
                        Architecture      => "all",
-                       Depends           => '${misc:Depends}, emacs, ${elpa:Depends}',
+                       Depends           => "$depends",
                        Built_Using       => '${misc:Built-Using}',
                        Recommends        => "emacs (>= 46.0)",
                        Enhances          => "emacs, emacs24",