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75 lines
2.3 KiB
CoffeeScript
75 lines
2.3 KiB
CoffeeScript
crypto = require 'crypto'
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path = require 'path'
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CoffeeScript = require 'coffee-script'
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CSON = require 'season'
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fs = require 'fs-plus'
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cacheDir = path.join(fs.absolute('~/.atom'), 'compile-cache')
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stats =
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hits: 0
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misses: 0
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# Use separate compile cache when sudo'ing as root to avoid permission issues
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if process.env.USER is 'root' and process.env.SUDO_USER and process.env.SUDO_USER isnt process.env.USER
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cacheDir = path.join(cacheDir, 'root')
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coffeeCacheDir = path.join(cacheDir, 'coffee')
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CSON.setCacheDir(path.join(cacheDir, 'cson'))
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getCachePath = (coffee) ->
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digest = crypto.createHash('sha1').update(coffee, 'utf8').digest('hex')
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path.join(coffeeCacheDir, "#{digest}.js")
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getCachedJavaScript = (cachePath) ->
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if fs.isFileSync(cachePath)
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try
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cachedJavaScript = fs.readFileSync(cachePath, 'utf8')
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stats.hits++
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return cachedJavaScript
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return
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convertFilePath = (filePath) ->
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if process.platform is 'win32'
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filePath = "/#{path.resolve(filePath).replace(/\\/g, '/')}"
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encodeURI(filePath)
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compileCoffeeScript = (coffee, filePath, cachePath) ->
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{js, v3SourceMap} = CoffeeScript.compile(coffee, filename: filePath, sourceMap: true)
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stats.misses++
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# Include source map in the web page environment.
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if btoa? and JSON? and unescape? and encodeURIComponent?
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js = "#{js}\n//# sourceMappingURL=data:application/json;base64,#{btoa unescape encodeURIComponent v3SourceMap}\n//# sourceURL=#{convertFilePath(filePath)}"
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try
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fs.writeFileSync(cachePath, js)
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js
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requireCoffeeScript = (module, filePath) ->
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coffee = fs.readFileSync(filePath, 'utf8')
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cachePath = getCachePath(coffee)
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js = getCachedJavaScript(cachePath) ? compileCoffeeScript(coffee, filePath, cachePath)
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module._compile(js, filePath)
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module.exports =
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cacheDir: cacheDir
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register: ->
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Object.defineProperty(require.extensions, '.coffee', {
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writable: false
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value: requireCoffeeScript
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})
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addPathToCache: (filePath) ->
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extension = path.extname(filePath)
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if extension is '.coffee'
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content = fs.readFileSync(filePath, 'utf8')
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cachePath = getCachePath(coffee)
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compileCoffeeScript(coffee, filePath, cachePath)
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else if extension is '.cson'
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CSON.readFileSync(filePath)
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getCacheMisses: -> stats.misses
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getCacheHits: -> stats.hits
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