node-object-sync/setup.js at master · dotmaster/node-object-sync · GitHub

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//Setup.js created by Ben Weaver (http://gist.github.com/508314)

varfs=require('fs'),
path=require('path');

exports.app=app;
exports.lib=lib;
exports.ext=ext;
exports.run=run;


/// --- Methods

varrun=require;

// A shortcut for adding `lib' and `ext' subfolders, then running a
// main program.
functionapp(base,main){
lib(path.join(base,'lib'));
ext(path.join(base,'ext'));
returnmain ? run(path.join(base,main)) : exports;
}

// Local libraries
functionlib(folder){
if(exists(folder))
require.paths.unshift(folder);
returnexports;
}

// Third-party libraries
functionext(folder){
if(!exists(folder))
returnexports;


fs.readdirSync(folder).forEach(function(name){
varbase=path.join(folder,name),
linked=false;

// Pure-JS packages have a `lib' folder with LIBRARY.js files in it.
// Packages with C++ bindings will have a `build/default' folder
// with LIBRARY.node files in it after running node-waf.
[path.join(base,'/build/default'),path.join(base,'/lib')]
.forEach(function(folder){
if(exists(folder)){
require.paths.unshift(folder);
linked=true;
}
});

// If neither `lib' or `build' were found, fallback to linking the
// folder itself.
//if (!linked)
require.paths.unshift(base);

// Some programmers refer to third-party libraries in a fully-qualified manner.
require.paths.unshift(folder);
});
returnexports;
}


/// --- Aux

functionexists(filename){
try{
fs.statSync(filename);
returntrue;
}catch(x){
returnfalse;
}
}