official/apply_camera_style - made name tranlatable and made it into

                              name string instead of the filename

tools/script_manager - change get_script_metadata to retreive a
                       script metadata block and store it as a
                       metadata block making the indiviual fields
                       accessible.

                       change the script buttons to use the translated
                       name if available and just the purpose for the
                       tooltip.

Author: wpferguson

official/apply_camera_style.lua

@@ -89,7 +89,7 @@ script_data.restart = nil           -- how to restart the (lib) script after it'
 script_data.show = nil              -- only required for libs since the destroy_method only hides them
 
 script_data.metadata = {
-  name = "apply_camera_style",            -- name of script
+  name = _("apply camera style"),            -- name of script
   purpose = _("apply darktable camera style to matching images"),   -- purpose of script
   author = "Bill Ferguson <wpferguson@gmail.com>",          -- your name and optionally e-mail address
   help = "https://docs.darktable.org/lua/development/lua.scripts.manual/scripts/official/apply_camera_style/"                   -- URL to help/documentation

tools/script_manager.lua

@@ -405,29 +405,28 @@ local function get_script_metadata(script)
 
   log.msg(log.debug, "processing metatdata for " .. script)
 
-  local description = nil
-  local metadata = nil
+  local metadata_block = nil
+  local metadata = {}
 
   f = io.open(LUA_DIR .. PS .. script .. ".lua")
   if f then
     -- slurp the file
     local content = f:read("*all")
     f:close()
     -- grab the script_data.metadata table
-    description = string.match(content, "script_data%.metadata = %{\r?\n(.-)\r?\n%}")
+    metadata_block = string.match(content, "script_data%.metadata = %{\r?\n(.-)\r?\n%}")
   else
     log.msg(log.error, "cant read from " .. script)
   end
 
-  if description then
-    metadata = ""
-    -- format it into a string block for display
-    local lines = du.split(description, "\n")
+  if metadata_block then
+    -- break up the lines into key value pairs
+    local lines = du.split(metadata_block, "\n")
     log.msg(log.debug, "got " .. #lines .. " lines")
-    local first = 1
     for i = 1, #lines do
       log.msg(log.debug, "splitting line " .. lines[i])
       local parts = du.split(lines[i], " = ")
+      parts[1] = string_trim(parts[1])
       log.msg(log.debug, "got value " .. parts[1] .. " and data " .. parts[2])
       if string.match(parts[2], "%_%(") then
         parts[2] = _(string_dequote(string_dei18n(parts[2])))
@@ -437,14 +436,15 @@ local function get_script_metadata(script)
       if string.match(parts[2], ",$") then
         parts[2] = string_chop(parts[2])
       end
-      metadata = metadata .. string.format("%s%-10s\t%s", first and "" or "\n", parts[1], parts[2])
-      first = nil
+      log.msg(log.debug, "parts 1 is " .. parts[1] .. " and parts 2 is " .. parts[2])
+      metadata[parts[1]] = parts[2]
+      log.msg(log.debug, "metadata " .. parts[1] .. " is " .. metadata[parts[1]])
     end
-    log.msg(log.debug, "script data is \n" .. metadata)
+    log.msg(log.debug, "script data found for " .. metadata["name"])
   end
 
   restore_log_level(old_log_level)
-  return metadata
+  return metadata_block and metadata or nil
 end
 
 local function get_script_doc(script)
@@ -910,11 +910,11 @@ local function populate_buttons(folder, first, last)
     end
 
     button.image = POWER_ICON
-    label.label = script.name
+    label.label = script.metadata and script.metadata.name or script.name
     label.name = "pb_label"
     button.ellipsize = "end"
     button.sensitive = true
-    label.tooltip = script.metadata and script.metadata or script.doc
+    label.tooltip = script.metadata and script.metadata.purpose or script.doc
 
     button.clicked_callback = function (this)
       local cb_script = script