prosody
bc9cb23b604a
util/envload.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/envload.lua @ 8416:bc9cb23b604a

util.envload: Ignore "undefined variable" warning for loadstring [luacheck with strict 5.2 or 5.3 checks]
author Kim Alvefur <zash@zash.se>
date Thu, 23 Nov 2017 20:51:38 +0100
parent 7930:5dec27760ecd
child 12576:d1aacc6a81ac
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5020
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
1 -- Prosody IM
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
2 -- Copyright (C) 2008-2011 Florian Zeitz
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
3 --
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
4 -- This project is MIT/X11 licensed. Please see the
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
5 -- COPYING file in the source package for more information.
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
6 --
8416
bc9cb23b604a util.envload: Ignore "undefined variable" warning for loadstring [luacheck with strict 5.2 or 5.3 checks]
Kim Alvefur <zash@zash.se>
parents: 7930
diff changeset
7 -- luacheck: ignore 113/setfenv 113/loadstring
5020
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
8
7924
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
9 local load, loadstring, setfenv = load, loadstring, setfenv;
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
10 local io_open = io.open;
5020
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
11 local envload;
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
12 local envloadfile;
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
13
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
14 if setfenv then
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
15 function envload(code, source, env)
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
16 local f, err = loadstring(code, source);
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
17 if f and env then setfenv(f, env); end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
18 return f, err;
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
19 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
20
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
21 function envloadfile(file, env)
7924
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
22 local fh, err, errno = io_open(file);
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
23 if not fh then return fh, err, errno; end
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
24 local f, err = load(function () return fh:read(2048); end, "@"..file);
7930
5dec27760ecd util.envload: Close file handle after reading data
Kim Alvefur <zash@zash.se>
parents: 7924
diff changeset
25 fh:close();
5020
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
26 if f and env then setfenv(f, env); end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
27 return f, err;
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
28 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
29 else
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
30 function envload(code, source, env)
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
31 return load(code, source, nil, env);
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
32 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
33
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
34 function envloadfile(file, env)
7924
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
35 local fh, err, errno = io_open(file);
8487fe9fc335 util.envload: Open file here instead of letting loadfile do it so that all return values from io.open can be collected
Kim Alvefur <zash@zash.se>
parents: 7728
diff changeset
36 if not fh then return fh, err, errno; end
7930
5dec27760ecd util.envload: Close file handle after reading data
Kim Alvefur <zash@zash.se>
parents: 7924
diff changeset
37 local f, err = load(fh:lines(2048), "@"..file, nil, env);
5dec27760ecd util.envload: Close file handle after reading data
Kim Alvefur <zash@zash.se>
parents: 7924
diff changeset
38 fh:close();
5dec27760ecd util.envload: Close file handle after reading data
Kim Alvefur <zash@zash.se>
parents: 7924
diff changeset
39 return f, err;
5020
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
40 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
41 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
42
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
43 return { envload = envload, envloadfile = envloadfile };