util/pluginloader.lua
author Kim Alvefur <zash@zash.se>
Sat, 21 Feb 2015 10:36:37 +0100
changeset 6780 5de6b93d0190
parent 6031 8796aa94c4b5
child 7118 805d068d2fd5
permissions -rw-r--r--
util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1522
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1441
diff changeset
     1
-- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
     2
-- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
     3
-- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5073
diff changeset
     4
--
1522
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1441
diff changeset
     5
-- This project is MIT/X11 licensed. Please see the
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1441
diff changeset
     6
-- COPYING file in the source package for more information.
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1441
diff changeset
     7
--
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1441
diff changeset
     8
4121
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
     9
local dir_sep, path_sep = package.config:match("^(%S+)%s(%S+)");
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    10
local plugin_dir = {};
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    11
for path in (CFG_PLUGINDIR or "./plugins/"):gsub("[/\\]", dir_sep):gmatch("[^"..path_sep.."]+") do
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    12
	path = path..dir_sep; -- add path separator to path end
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    13
	path = path:gsub(dir_sep..dir_sep.."+", dir_sep); -- coalesce multiple separaters
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    14
	plugin_dir[#plugin_dir + 1] = path;
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    15
end
1359
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    16
5073
ecc89a60b2ba util.pluginloader: Remove unused imports
Matthew Wild <mwild1@gmail.com>
parents: 5072
diff changeset
    17
local io_open = io.open;
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4154
diff changeset
    18
local envload = require "util.envload".envload;
2276
d9302be05f86 util.pluginloader: Support for fetching plugins from the data store
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
    19
6780
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    20
local function load_file(names)
4149
3c1b153c2856 util.pluginloader: Return full file path from internal file loader on success, not just the name.
Waqas Hussain <waqas20@gmail.com>
parents: 4121
diff changeset
    21
	local file, err, path;
4121
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    22
	for i=1,#plugin_dir do
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    23
		for j=1,#names do
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    24
			path = plugin_dir[i]..names[j];
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    25
			file, err = io_open(path);
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    26
			if file then
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    27
				local content = file:read("*a");
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    28
				file:close();
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    29
				return content, path;
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    30
			end
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    31
		end
4121
ea7e3f22f898 util.pluginloader: Add support for multiple plugin directories.
Waqas Hussain <waqas20@gmail.com>
parents: 3411
diff changeset
    32
	end
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    33
	return file, err;
1359
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    34
end
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    35
6780
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    36
local function load_resource(plugin, resource)
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    37
	resource = resource or "mod_"..plugin..".lua";
2276
d9302be05f86 util.pluginloader: Support for fetching plugins from the data store
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
    38
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    39
	local names = {
6029
dd3d4cfbd3cb util.pluginloader: Always use path separator from package.config (thanks Junne)
Kim Alvefur <zash@zash.se>
parents: 5073
diff changeset
    40
		"mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
dd3d4cfbd3cb util.pluginloader: Always use path separator from package.config (thanks Junne)
Kim Alvefur <zash@zash.se>
parents: 5073
diff changeset
    41
		"mod_"..plugin..dir_sep..resource;                  -- mod_hello/mod_hello.lua
dd3d4cfbd3cb util.pluginloader: Always use path separator from package.config (thanks Junne)
Kim Alvefur <zash@zash.se>
parents: 5073
diff changeset
    42
		plugin..dir_sep..resource;                          -- hello/mod_hello.lua
dd3d4cfbd3cb util.pluginloader: Always use path separator from package.config (thanks Junne)
Kim Alvefur <zash@zash.se>
parents: 5073
diff changeset
    43
		resource;                                           -- mod_hello.lua
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    44
	};
3410
32b018eeeb3b util.pluginloader: Fix loading of plugins, plugin libraries and resources in subfolders (e.g., when loading 'a/b', load 'a/mod_b.lua', and not 'mod_a/b.lua').
Waqas Hussain <waqas20@gmail.com>
parents: 3233
diff changeset
    45
4154
3785a9bb7f11 util.pluginloader: Rewritten resource loading to be cleaner, and added support for prosody-modules directory layout. "/" in plugin names is no longer supported.
Waqas Hussain <waqas20@gmail.com>
parents: 4152
diff changeset
    46
	return load_file(names);
1359
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    47
end
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    48
6780
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    49
local function load_code(plugin, resource, env)
1359
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    50
	local content, err = load_resource(plugin, resource);
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    51
	if not content then return content, err; end
4150
2894ca33ec45 util.pluginloader: Return file path on success in pluginloader.load_code().
Waqas Hussain <waqas20@gmail.com>
parents: 4149
diff changeset
    52
	local path = err;
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4154
diff changeset
    53
	local f, err = envload(content, "@"..path, env);
4150
2894ca33ec45 util.pluginloader: Return file path on success in pluginloader.load_code().
Waqas Hussain <waqas20@gmail.com>
parents: 4149
diff changeset
    54
	if not f then return f, err; end
2894ca33ec45 util.pluginloader: Return file path on success in pluginloader.load_code().
Waqas Hussain <waqas20@gmail.com>
parents: 4149
diff changeset
    55
	return f, path;
1359
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    56
end
015d624a2a71 util.pluginloader: Initial commit - a plugin resource loader
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
    57
6780
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    58
return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    59
	load_file = load_file;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    60
	load_resource = load_resource;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    61
	load_code = load_code;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6031
diff changeset
    62
};