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-rw-r--r--lib/lua-repl/repl/plugins/rcfile.lua54
1 files changed, 54 insertions, 0 deletions
diff --git a/lib/lua-repl/repl/plugins/rcfile.lua b/lib/lua-repl/repl/plugins/rcfile.lua
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+++ b/lib/lua-repl/repl/plugins/rcfile.lua
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+-- Copyright (c) 2011-2015 Rob Hoelz <rob@hoelz.ro>
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy of
+-- this software and associated documentation files (the "Software"), to deal in
+-- the Software without restriction, including without limitation the rights to
+-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+-- the Software, and to permit persons to whom the Software is furnished to do so,
+-- subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+-- FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+-- COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+-- IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+-- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+-- A plugin that runs code in $HOME/.rep.lua before the REPL starts
+
+local setfenv = require('repl.utils').setfenv
+
+local function readable(filename)
+ local f = io.open(filename, 'r')
+ if not f then
+ return false
+ end
+ f:close()
+ return true
+end
+
+local function init()
+ local home = os.getenv 'HOME'
+
+ if not home then
+ return
+ end
+
+ local rcfile = home .. '/.rep.lua'
+
+ if not readable(rcfile) then
+ return
+ end
+
+ local chunk = assert(loadfile(rcfile))
+ local env = setmetatable({ repl = repl }, { __index = _G, __newindex = _G })
+
+ setfenv(chunk, env)
+
+ chunk()
+ return true
+end
+
+return init()