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/* |
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Copyright (c) 2012, Yahoo! Inc. All rights reserved. |
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Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms. |
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*/ |
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var fs = require('fs'); |
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function FileWriter(sync) { |
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this.writing = false; |
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this.start = sync ? this.startSync : this.startAsync; |
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this.write = sync ? this.writeSync : this.writeAsync; |
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this.end = sync ? this.endSync : this.endAsync; |
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} |
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FileWriter.prototype = { |
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writeFile: function (file, callback) { |
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this.start(file); |
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callback(this); |
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this.end(); |
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}, |
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println: function (str) { |
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this.write(str); |
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this.write('\n'); |
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}, |
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startSync: function (fileName) { |
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this.doStart(); |
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this.contents = ''; |
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this.filename = fileName; |
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}, |
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writeSync: function (str) { |
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this.contents += str; |
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}, |
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endSync: function () { |
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this.doEnd(); |
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fs.writeFileSync(this.filename, this.contents, 'utf8'); |
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}, |
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startAsync: function (fileName) { |
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this.doStart(); |
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this.stream = fs.createWriteStream(fileName); |
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}, |
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writeAsync: function (str) { |
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this.stream.write(str); |
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}, |
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endAsync: function () { |
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this.doEnd(); |
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this.stream.end(); |
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}, |
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doStart: function () { |
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if (this.writing) { throw new Error('Attempt to start a new file before ending the previous one'); } |
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this.writing = true; |
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}, |
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doEnd : function () { |
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if (!this.writing) { throw new Error('Attempt to end a file without starting it'); } |
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this.writing = false; |
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} |
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}; |
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module.exports = FileWriter; |