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configmanager: Allow referencing environment variables in the config as as ENV_<name>

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This commit is contained in:
Matthew Wild 2018-09-03 17:45:30 +01:00
parent b16c2dac44
commit 55a6e42c64
1 changed files with 5 additions and 2 deletions
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7
core/configmanager.lua
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@ -7,8 +7,8 @@
--
local _G = _G;
local setmetatable, rawget, rawset, io, error, dofile, type, pairs =
setmetatable, rawget, rawset, io, error, dofile, type, pairs;
local setmetatable, rawget, rawset, io, os, error, dofile, type, pairs =
setmetatable, rawget, rawset, io, os, error, dofile, type, pairs;
local format, math_max = string.format, math.max;
local envload = require"util.envload".envload;
@ -109,6 +109,9 @@ do
Component = true, component = true,
Include = true, include = true, RunScript = true }, {
__index = function (_, k)
if k:match("^ENV_") then
return os.getenv(k:sub(5));
end
return rawget(_G, k);
end,
__newindex = function (_, k, v)