Created
June 19, 2018 14:13
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File Clone creation using ES6 generator though it copies itself it can be modified to copy other files.
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| "use strict"; | |
| const fs = require('fs'); | |
| const path = require('path'); | |
| function clone(generatorFunction) { | |
| function callback(err) { | |
| if (err) { | |
| return generator.throw(err); | |
| } | |
| const results = [].slice.call(arguments, 1); | |
| generator.next(results.length > 1 ? results : results[0]); // <-- calls generator with value to continue after yield. | |
| } | |
| const generator = generatorFunction(callback); | |
| generator.next(); // <--- Line that triggers cloning. | |
| } | |
| clone(function* (callback) { | |
| const fileName = path.basename(__filename); | |
| const myself = yield fs.readFile(fileName, 'utf8', callback); | |
| yield fs.writeFile(`clone_of_${fileName}`, myself, callback); | |
| console.log('Clone created'); | |
| }); |
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