node_modules/log4js/.bob/instrumented/lib/streams/BaseRollingFileStream.js

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"use strict";
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var fs = require("fs"), stream, debug = require("../debug")("BaseRollingFileStream"), util = require("util"), semver = require("semver");
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if (semver.satisfies(process.version, ">=0.10.0")) {
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  stream = require("stream");
}
else {
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  stream = require("readable-stream");
}
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module.exports = BaseRollingFileStream;
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function BaseRollingFileStream(filename, options) {
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  debug("In BaseRollingFileStream");
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  this.filename = filename;
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  this.options = options || {encoding: "utf8", mode: parseInt("0644", 8), flags: "a"};
  _$jscoverage['streams/BaseRollingFileStream.js'][20]++;
  this.currentSize = 0;
  _$jscoverage['streams/BaseRollingFileStream.js'][22]++;
  function currentFileSize(file) {
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    var fileSize = 0;
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    try {
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      fileSize = fs.statSync(file).size;
    }
    catch (e) {
    }
    _$jscoverage['streams/BaseRollingFileStream.js'][29]++;
    return fileSize;
}
  _$jscoverage['streams/BaseRollingFileStream.js'][32]++;
  function throwErrorIfArgumentsAreNotValid() {
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    if (! filename) {
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      throw new Error("You must specify a filename");
    }
}
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  throwErrorIfArgumentsAreNotValid();
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  debug("Calling BaseRollingFileStream.super");
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  BaseRollingFileStream.super_.call(this);
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  this.openTheStream();
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  this.currentSize = currentFileSize(this.filename);
}
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util.inherits(BaseRollingFileStream, stream.Writable);
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BaseRollingFileStream.prototype._write = (function (chunk, encoding, callback) {
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  var that = this;
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  function writeTheChunk() {
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    debug("writing the chunk to the underlying stream");
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    that.currentSize += chunk.length;
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    that.theStream.write(chunk, encoding, callback);
}
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  debug("in _write");
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  if (this.shouldRoll()) {
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    this.currentSize = 0;
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    this.roll(this.filename, writeTheChunk);
  }
  else {
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    writeTheChunk();
  }
});
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BaseRollingFileStream.prototype.openTheStream = (function (cb) {
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  debug("opening the underlying stream");
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  this.theStream = fs.createWriteStream(this.filename, this.options);
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  if (cb) {
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    this.theStream.on("open", cb);
  }
});
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BaseRollingFileStream.prototype.closeTheStream = (function (cb) {
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  debug("closing the underlying stream");
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  this.theStream.end(cb);
});
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BaseRollingFileStream.prototype.shouldRoll = (function () {
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  return false;
});
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BaseRollingFileStream.prototype.roll = (function (filename, callback) {
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  callback();
});
_$jscoverage['streams/BaseRollingFileStream.js'].source = ["\"use strict\";","var fs = require('fs')",", stream",", debug = require('../debug')('BaseRollingFileStream')",", util = require('util')",", semver = require('semver');","","if (semver.satisfies(process.version, '>=0.10.0')) {","  stream = require('stream');","} else {","  stream = require('readable-stream');","}","","module.exports = BaseRollingFileStream;","","function BaseRollingFileStream(filename, options) {","  debug(\"In BaseRollingFileStream\");","  this.filename = filename;","  this.options = options || { encoding: 'utf8', mode: parseInt('0644', 8), flags: 'a' };","  this.currentSize = 0;","  ","  function currentFileSize(file) {","    var fileSize = 0;","    try {","      fileSize = fs.statSync(file).size;","    } catch (e) {","      // file does not exist","    }","    return fileSize;","  }","","  function throwErrorIfArgumentsAreNotValid() {","    if (!filename) {","      throw new Error(\"You must specify a filename\");","    }","  }","","  throwErrorIfArgumentsAreNotValid();","  debug(\"Calling BaseRollingFileStream.super\");","  BaseRollingFileStream.super_.call(this);","  this.openTheStream();","  this.currentSize = currentFileSize(this.filename);","}","util.inherits(BaseRollingFileStream, stream.Writable);","","BaseRollingFileStream.prototype._write = function(chunk, encoding, callback) {","  var that = this;","  function writeTheChunk() {","    debug(\"writing the chunk to the underlying stream\");","    that.currentSize += chunk.length;","    that.theStream.write(chunk, encoding, callback);","  }","","  debug(\"in _write\");","","  if (this.shouldRoll()) {","    this.currentSize = 0;","    this.roll(this.filename, writeTheChunk);","  } else {","    writeTheChunk();","  }","};","","BaseRollingFileStream.prototype.openTheStream = function(cb) {","  debug(\"opening the underlying stream\");","  this.theStream = fs.createWriteStream(this.filename, this.options);","  if (cb) {","    this.theStream.on(\"open\", cb);","  }","};","","BaseRollingFileStream.prototype.closeTheStream = function(cb) {","  debug(\"closing the underlying stream\");","  this.theStream.end(cb);","};","","BaseRollingFileStream.prototype.shouldRoll = function() {","  return false; // default behaviour is never to roll","};","","BaseRollingFileStream.prototype.roll = function(filename, callback) {","  callback(); // default behaviour is not to do anything","};",""];