Add online content repository

Replaces mods and texture pack tabs with a single content tab

doc/lua_api.txt

@@ -55,10 +55,10 @@ Where `gameid` is unique to each game.
 
 The game directory can contain the following files:
 
-* `game.conf`, which contains:
-    * `name = <Human-readable full name of the game>` e.g. `name = Minetest`
-    * Optionally, game.conf can also contain
-      `disallowed_mapgens = <comma-separated mapgens>`
+* `game.conf`, with the following keys:
+    * `name` - required, human readable name  e.g. `name = Minetest`
+    * `description` - Short description to be shown in the content tab
+    * `disallowed_mapgens = <comma-separated mapgens>`
       e.g. `disallowed_mapgens = v5,v6,flat`
       These mapgens are removed from the list of mapgens for the game.
 * `minetest.conf`:
@@ -2544,6 +2544,9 @@ Helper functions
     * returns time with microsecond precision. May not return wall time.
 * `table.copy(table)`: returns a table
     * returns a deep copy of `table`
+* `table.insert_all(table, other_table)`:
+    * Appends all values in `other_table` to `table` - uses `#table + 1` to
+      find new indices.
 * `minetest.pointed_thing_to_face_pos(placer, pointed_thing)`: returns a
   position.
     * returns the exact position on the surface of a pointed node

doc/menu_lua_api.txt

@@ -33,14 +33,6 @@ core.close()
 Filesystem:
 core.get_builtin_path()
 ^ returns path to builtin root
-core.get_modpath() (possible in async calls)
-^ returns path to global modpath
-core.get_clientmodpath() (possible in async calls)
-^ returns path to global client-side modpath
-core.get_gamepath() (possible in async calls)
-^ returns path to global gamepath
-core.get_texturepath() (possible in async calls)
-^ returns path to default textures
 core.create_dir(absolute_path) (possible in async calls)
 ^ absolute_path to directory to create (needs to be absolute)
 ^ returns true/false
@@ -71,6 +63,8 @@ core.get_video_drivers()
 ^ returns list of available video drivers' settings name and 'friendly' display name
 ^ e.g. { {name="opengl", friendly_name="OpenGL"}, {name="software", friendly_name="Software Renderer"} }
 ^ first element of returned list is guaranteed to be the NULL driver
+core.get_mapgen_names([include_hidden=false]) -> table of map generator algorithms
+    registered in the core (possible in async calls)
 
 Formspec:
 core.update_formspec(formspec)
@@ -111,29 +105,58 @@ core.get_screen_info()
 	window_height   = <current window height>
 	}
 
-Packages:
-core.get_game(index)
-^ returns {
-	id               = <id>,
-	path             = <full path to game>,
-	gamemods_path    = <path>,
-	name             = <name of game>,
-	menuicon_path    = <full path to menuicon>,
-	DEPRECATED:
-	addon_mods_paths = {[1] = <path>,},
-}
-core.get_games() -> table of all games in upper format (possible in async calls)
-core.get_mapgen_names([include_hidden=false]) -> table of map generator algorithms
-    registered in the core (possible in async calls)
-core.get_mod_info(path)
-^ returns  {
-	name             = "name of mod",
-	type             = "mod" or "modpack",
-	description      = "description",
-	path             = "path/to/mod",
-	depends          = {"mod", "names"},
-	optional_depends = {"mod", "names"},
-}
+### Content and Packages
+
+Content - an installed mod, modpack, game, or texture pack (txt)
+Package - content which is downloadable from the content db, may or may not be installed.
+
+* core.get_modpath() (possible in async calls)
+	* returns path to global modpath
+* core.get_clientmodpath() (possible in async calls)
+	* returns path to global client-side modpath
+* core.get_gamepath() (possible in async calls)
+	* returns path to global gamepath
+* core.get_texturepath() (possible in async calls)
+	* returns path to default textures
+* core.get_game(index)
+	* returns:
+
+		{
+			id               = <id>,
+			path             = <full path to game>,
+			gamemods_path    = <path>,
+			name             = <name of game>,
+			menuicon_path    = <full path to menuicon>,
+			author           = "author",
+			DEPRECATED:
+			addon_mods_paths = {[1] = <path>,},
+		}
+
+* core.get_games() -> table of all games in upper format (possible in async calls)
+* core.get_content_info(path)
+	* returns
+
+		{
+			name             = "name of content",
+			type             = "mod" or "modpack" or "game" or "txp",
+			description      = "description",
+			author           = "author",
+			path             = "path/to/content",
+			depends          = {"mod", "names"}, -- mods only
+			optional_depends = {"mod", "names"}, -- mods only
+		}
+
+* core.get_package_list() -> downloads package list from content db
+	* returns a list of:
+
+		{
+			name = "basename",
+			title = "human readable title",
+			author = "username",
+			type = "", -- mod, game, txp
+			short_description = "description",
+			url = "",
+		}
 
 Favorites:
 core.get_favorites(location) -> list of favorites (possible in async calls)

doc/texture_packs.txt

@@ -9,6 +9,7 @@ Texture pack directory structure
 
     textures
     |-- Texture Pack
+    |   |-- texture_pack.conf
     |   |-- screenshot.png
     |   |-- description.txt
     |   |-- override.txt
@@ -21,9 +22,17 @@ This is a directory containing the entire contents of a single texture pack.
 It can be chosen more or less freely and will also become the name of the
 texture pack. The name must not be “base”.
 
+### `texture_pack.conf`
+A key-value config file with the following keys:
+
+* `title` - human readable title
+* `description` - short description, shown in the content tab
+
 ### `description.txt`
+**Deprecated**, you should use texture_pack.conf instead.
+
 A file containing a short description of the texture pack to be shown in the
-texture packs tab.
+content tab.
 
 ### `screenshot.png`
 A preview image showing an in-game screenshot of this texture pack; it will be