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function loadfile ( p ) -- string -- function -- reads file *p* and returns a function if possible
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local f = io.open ( p , " rb " )
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local c = f : read ( " *a " )
f : close ( )
return load ( c , p , " t " )
end
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function runfile ( p , ... ) -- string -- -- runs file *p* with arbitrary arguments in the current thread
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return loadfile ( p ) ( ... )
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end
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function os . spawnfile ( p , n , ... ) -- string string -- number -- spawns a new process from file *p* with name *n*, with arguments following *n*.
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local tA = { ... }
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return os.spawn ( function ( ) local res = { pcall ( loadfile ( p ) , table.unpack ( tA ) ) } computer.pushSignal ( " process_finished " , os.pid ( ) , table.unpack ( res ) ) dprint ( table.concat ( res ) ) end , n or p )
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end
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_G.package = { }
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package.loaded = { computer = computer , component = component , fs = fs , buffer = buffer }
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function require ( f , force ) -- string boolean -- table -- searches for a library with name *f* and returns what the library returns, if possible. if *force* is set, loads the library even if it is cached
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if not package.loaded [ f ] or force then
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local lib = os.getenv ( " LIB " ) or " /boot/lib "
for d in lib : gmatch ( " [^ \n ]+ " ) do
if fs.exists ( d .. " / " .. f ) then
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package.loaded [ f ] = runfile ( d .. " / " .. f )
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elseif fs.exists ( d .. " / " .. f .. " .lua " ) then
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package.loaded [ f ] = runfile ( d .. " / " .. f .. " .lua " )
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end
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end
end
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if package.loaded [ f ] then
return package.loaded [ f ]
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end
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error ( " library not found: " .. f )
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end
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function reload ( f ) -- string -- table -- Reloads library *f* from disk into memory.
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return require ( f , true )
end