From be3dfc8316bc8b9dd48a9a0fa6efdf91a2b3ccbe Mon Sep 17 00:00:00 2001
From: David Bremner <bremner@debian.org>
Date: Tue, 22 Sep 2015 08:46:38 -0300
Subject: add sub to read package description back from emacs

This file is in pseudo-RFC822 form; it is a fatal error if emacs didn't
create it.

Currently this calls an unexported sub from Dh_Lib
---
 dh_elpa | 56 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 38 insertions(+), 18 deletions(-)

diff --git a/dh_elpa b/dh_elpa
index b62d387..83675f3 100755
--- a/dh_elpa
+++ b/dh_elpa
@@ -76,23 +76,42 @@ sub doit_quietly {
 
 }
 
+sub read_package_desc {
+  my ($descdir, $package) = @_;
+  my %desc = {};
+
+  my $descfile="${descdir}/${package}.desc";
+
+  open my $fh,'<', $descfile or
+    error "failed to open $descfile";
+
+  while (<DESC>) {
+    if (m/([^:]+):\s*(.*)\s*$/) {
+      $desc{$1} = $2;
+    }
+  }
+  return \%desc;
+}
+
 my $templatedir = "/usr/share/debhelper/dh_elpa/emacsen-common";
 
 sub maybe_install_helper{
-  my ($package,$piece, $mode)=@_;
+  my ($package,$piece, $mode, $desc)=@_;
   my $file=pkgfile($package,"emacsen-$piece");
 
   my $tmp=tmpdir($package);
   my $ecdest="$tmp/usr/lib/emacsen-common/packages";
-
+  my $target="$ecdest/$piece/$package";
   # if there is file, leave it for dh_installemacsen
   if ($file eq '') {
     if (! -d "$ecdest/$piece") {
       doit("install","-d","$ecdest/$piece");
     }
+    Debian::Debhelper::Dh_Lib::autoscript_sed (sub {s/#ELPAPACKAGE#/$desc->{'ELPA-Package'}/;
+						    s/#ELPAVERSION#/$desc->{'ELPA-Version'}/; },
+					       "$templatedir/$piece", $target);
 
-    doit("install","-m$mode","$templatedir/$piece",
-         "$ecdest/$piece/$package");
+    chmod $mode, $target;
   }
 }
 
@@ -137,20 +156,6 @@ foreach my $package (@{$dh{DOPACKAGES}}) {
 
   next PACKAGE if (scalar(@files) == 0);
 
-  if ($dh{BYTECOMPILE}) {
-    addsubstvar($package,'misc:Depends','emacsen-common');
-    maybe_install_helper($package,'compat','0644');
-    maybe_install_helper($package,'install','0755');
-    maybe_install_helper($package,'remove','0755');
-
-    if (! $dh{NOSCRIPTS}) {
-      autoscript($package,"postinst","postinst-emacsen",
-                 "s/#PACKAGE#/$package/");
-      autoscript($package,"prerm","prerm-emacsen",
-                 "s/#PACKAGE#/$package/");
-    }
-  }
-
   my $pkg_file;
   my $cwd = getcwd();
   my $tempdir = "${cwd}/debian/.debhelper/elpa";
@@ -188,6 +193,21 @@ foreach my $package (@{$dh{DOPACKAGES}}) {
 		 "$tmp/$elpadir", $stagedir, $tempdir);
 
   }
+  if ($dh{BYTECOMPILE}) {
+    my $desc = read_package_desc ($tempdir,$package);
+
+    addsubstvar($package,'misc:Depends','emacsen-common');
+    maybe_install_helper($package, 'compat', '0644', $desc);
+    maybe_install_helper($package, 'install', '0755', $desc);
+    maybe_install_helper($package, 'remove', '0755', $desc);
+
+    if (! $dh{NOSCRIPTS}) {
+      autoscript($package,"postinst","postinst-emacsen",
+                 "s/#PACKAGE#/$package/");
+      autoscript($package,"prerm","prerm-emacsen",
+                 "s/#PACKAGE#/$package/");
+    }
+  }
 
 }
 
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