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							133 lines
						
					
					
						
							3.1 KiB
						
					
					
				
			
		
		
		
			
			
			
		
		
	
	
							133 lines
						
					
					
						
							3.1 KiB
						
					
					
				
								var _fs
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								try {
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								  _fs = require('graceful-fs')
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								} catch (_) {
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								  _fs = require('fs')
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								}
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								function readFile (file, options, callback) {
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								  if (callback == null) {
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								    callback = options
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								    options = {}
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								  }
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								  if (typeof options === 'string') {
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								    options = {encoding: options}
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								  }
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								  options = options || {}
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								  var fs = options.fs || _fs
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								  var shouldThrow = true
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								  // DO NOT USE 'passParsingErrors' THE NAME WILL CHANGE!!!, use 'throws' instead
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								  if ('passParsingErrors' in options) {
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								    shouldThrow = options.passParsingErrors
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								  } else if ('throws' in options) {
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								    shouldThrow = options.throws
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								  }
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								  fs.readFile(file, options, function (err, data) {
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								    if (err) return callback(err)
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								    data = stripBom(data)
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								    var obj
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								    try {
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								      obj = JSON.parse(data, options ? options.reviver : null)
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								    } catch (err2) {
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								      if (shouldThrow) {
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								        err2.message = file + ': ' + err2.message
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								        return callback(err2)
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								      } else {
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								        return callback(null, null)
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								      }
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								    }
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								    callback(null, obj)
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								  })
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								}
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								function readFileSync (file, options) {
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								  options = options || {}
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								  if (typeof options === 'string') {
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								    options = {encoding: options}
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								  }
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								  var fs = options.fs || _fs
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								  var shouldThrow = true
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								  // DO NOT USE 'passParsingErrors' THE NAME WILL CHANGE!!!, use 'throws' instead
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								  if ('passParsingErrors' in options) {
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								    shouldThrow = options.passParsingErrors
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								  } else if ('throws' in options) {
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								    shouldThrow = options.throws
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								  }
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								  var content = fs.readFileSync(file, options)
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								  content = stripBom(content)
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								  try {
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								    return JSON.parse(content, options.reviver)
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								  } catch (err) {
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								    if (shouldThrow) {
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								      err.message = file + ': ' + err.message
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								      throw err
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								    } else {
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								      return null
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								    }
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								  }
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								}
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								function writeFile (file, obj, options, callback) {
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								  if (callback == null) {
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								    callback = options
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								    options = {}
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								  }
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								  options = options || {}
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								  var fs = options.fs || _fs
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								  var spaces = typeof options === 'object' && options !== null
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								    ? 'spaces' in options
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								    ? options.spaces : this.spaces
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								    : this.spaces
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								  var str = ''
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								  try {
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								    str = JSON.stringify(obj, options ? options.replacer : null, spaces) + '\n'
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								  } catch (err) {
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								    if (callback) return callback(err, null)
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								  }
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								  fs.writeFile(file, str, options, callback)
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								}
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								function writeFileSync (file, obj, options) {
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								  options = options || {}
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								  var fs = options.fs || _fs
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								  var spaces = typeof options === 'object' && options !== null
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								    ? 'spaces' in options
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								    ? options.spaces : this.spaces
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								    : this.spaces
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								  var str = JSON.stringify(obj, options.replacer, spaces) + '\n'
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								  // not sure if fs.writeFileSync returns anything, but just in case
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								  return fs.writeFileSync(file, str, options)
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								}
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								function stripBom (content) {
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								  // we do this because JSON.parse would convert it to a utf8 string if encoding wasn't specified
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								  if (Buffer.isBuffer(content)) content = content.toString('utf8')
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								  content = content.replace(/^\uFEFF/, '')
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								  return content
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								}
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								var jsonfile = {
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								  spaces: null,
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								  readFile: readFile,
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								  readFileSync: readFileSync,
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								  writeFile: writeFile,
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								  writeFileSync: writeFileSync
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								}
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								module.exports = jsonfile
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