23 lines
1.0 KiB
Java
23 lines
1.0 KiB
Java
var fs = require("fs"),
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encode = require("./encode");
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module.exports = function(path, data, options, callback) {
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if (arguments.length < 4) callback = options, options = null;
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switch (path) {
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case "/dev/stdout": return writeStream(process.stdout, "write", data, options, callback);
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case "/dev/stderr": return writeStream(process.stderr, "write", data, options, callback);
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}
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fs.stat(path, function(error, stat) {
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if (error && error.code !== "ENOENT") return callback(error);
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if (stat && stat.isFile()) return fs.writeFile(path, data, options, callback);
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writeStream(fs.createWriteStream(path, options ? {flags: options.flag || "w"} : {}), "end", data, options, callback); // N.B. flag / flags
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});
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};
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function writeStream(stream, send, data, options, callback) {
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stream.on("error", function(error) { callback(error.code === "EPIPE" ? null : error); }); // ignore broken pipe, e.g., | head
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stream[send](encode(data, options), function(error) { callback(error && error.code === "EPIPE" ? null : error); });
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}
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