65 lines
1.9 KiB
CoffeeScript
65 lines
1.9 KiB
CoffeeScript
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asar = process.atomBinding 'asar'
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fs = require 'fs'
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path = require 'path'
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# Separate asar package's path from full path.
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splitPath = (p) ->
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components = p.split path.sep
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for c, i in components by -1
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if path.extname(c) is '.asar'
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asarPath = components.slice(0, i + 1).join path.sep
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filePath = components.slice(i + 1).join path.sep
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return [true, asarPath, filePath]
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return [false, p]
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# Convert asar archive's Stats object to fs's Stats object.
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asarStatsToFsStats = (stats) ->
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{
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size: stats.size
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isFile: -> stats.isFile
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isDirectory: -> stats.isDirectory
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isSymbolicLink: -> stats.isLink
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isBlockDevice: -> false
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isCharacterDevice: -> false
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isFIFO: -> false
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isSocket: -> false
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}
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# Override fs APIs.
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statSync = fs.statSync
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fs.statSync = (p) ->
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[isAsar, asarPath, filePath] = splitPath p
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return statSync p unless isAsar
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archive = asar.createArchive asarPath
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throw new Error("Invalid package #{asarPath}") unless archive
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stats = archive.stat filePath
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throw new Error("#{filePath} not found in #{asarPath}") unless stats
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asarStatsToFsStats stats
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stat = fs.stat
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fs.stat = (p, callback) ->
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[isAsar, asarPath, filePath] = splitPath p
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return stat p, callback unless isAsar
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archive = asar.createArchive asarPath
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return callback throw new Error("Invalid package #{asarPath}") unless archive
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stats = asar.createArchive(asarPath).stat filePath
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return callback new Error("#{filePath} not found in #{asarPath}") unless stats
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callback undefined, asarStatsToFsStats stats
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statSyncNoException = fs.statSyncNoException
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fs.statSyncNoException = (p) ->
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[isAsar, asarPath, filePath] = splitPath p
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return statSyncNoException p unless isAsar
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archive = asar.createArchive asarPath
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return false unless archive
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stats = asar.createArchive(asarPath).stat filePath
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return false unless stats
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asarStatsToFsStats stats
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