Smarter sys.execute() [doesnt use a tmp file anymore]

1 files changed, 5 insertions, 10 deletions

diff --git a/init.lua b/init.lua
index 9ee1aa6..ca444c9 100644
--- a/init.lua
+++ b/init.lua
@@ -69,18 +69,13 @@ toc = function(verbose)
 
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 -- execute an OS command, but retrieves the result in a string
--- side effect: creates a file in /tmp/
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 execute = function(cmd)
-             local tmpfile = '/tmp/lua.os.execute.out.' .. _G.tostring(clock())
-             local cmd = cmd .. ' 1>'.. tmpfile..' 2>' .. tmpfile
-             os.execute(cmd)
-             local file = _G.assert(io.open(tmpfile))
-             local str = file:read('*all')
-             file:close()
-             str:gsub('\n$','')
-             os.execute('rm ' .. tmpfile)
-             return str
+             local f = _G.assert(io.popen(cmd, 'r'))
+             local s = _G.assert(f:read('*a'))
+             f:close()
+             s = s:gsub('^%s*',''):gsub('%s*$','')
+             return s
           end
 
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