Add support for debconf.

lib/fpm/target/deb.rb

@@ -6,6 +6,16 @@ require "fpm/util"
 
 class FPM::Target::Deb < FPM::Package
 
+  # Supported Debian control files
+  CONTROL_FILES = {
+    "pre-install"       => [:script, "preinst"],
+    "post-install"      => [:script, "postinst"],
+    "pre-uninstall"     => [:script, "prerm"],
+    "post-uninstall"    => [:script, "postrm"],
+    "debconf-config"    => [:script, "config"],
+    "debconf-templates" => [:text,   "templates"]
+  }
+
   def self.flags(opts, settings)
     settings.target[:deb] = "deb"
 
@@ -23,6 +33,18 @@ class FPM::Target::Deb < FPM::Package
             "Custom version of the Debian control file.") do |control|
       settings.target[:control] = File.expand_path(control)
     end
+    
+    # Add custom debconf config file
+    opts.on("--config SCRIPTPATH",
+            "Add SCRIPTPATH as debconf config file.") do |config|
+      settings.scripts["debconf-config"] = File.expand_path(config)
+    end
+    
+    # Add custom debconf templates file
+    opts.on("--templates FILEPATH",
+            "Add FILEPATH as debconf templates file.") do |templates|
+      settings.scripts["debconf-templates"] = File.expand_path(templates)
+    end
   end
 
   def needs_md5sums
@@ -90,23 +112,16 @@ class FPM::Target::Deb < FPM::Package
                    "template.") unless $?.exitstatus == 0
     end
 
-    # place the postinst prerm files
+    # place the control files
     self.scripts.each do |name, path|
-      case name
-        when "pre-install"
-          safesystem("cp #{path} ./preinst")
-          control_files << "preinst"
-        when "post-install"
-          safesystem("cp #{path} ./postinst")
-          control_files << "postinst"
-        when "pre-uninstall"
-          safesystem("cp #{path} ./prerm")
-          control_files << "prerm"
-        when "post-uninstall"
-          safesystem("cp #{path} ./postrm")
-          control_files << "postrm"
-        else raise "Unsupported script name '#{name}' (path: #{path})"
-      end # case name
+      ctrl_type, ctrl_file = CONTROL_FILES[name]
+      if ctrl_file
+        safesystem("cp #{path} ./#{ctrl_file}")
+        safesystem("chmod a+x ./#{ctrl_file}") if ctrl_type == :script
+        control_files << ctrl_file
+      else
+        raise "Unsupported script name '#{name}' (path: #{path})"
+      end
     end # self.scripts.each
 
     if self.config_files.any?
@@ -115,7 +130,8 @@ class FPM::Target::Deb < FPM::Package
     end
 
     # Make the control
-    safesystem("tar -zcf control.tar.gz #{control_files.map{ |f| "./#{f}" }.join(" ")}")
+    safesystem("tar --numeric-owner --owner=root --group=root -zcf control.tar.gz " \
+               "#{control_files.map{ |f| "./#{f}" }.join(" ")}")
 
     # create debian-binary
     File.open("debian-binary", "w") { |f| f.puts "2.0" }