| 1 | less = require 'less'
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| 2 | sysPath = require 'path'
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| 3 |
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| 4 | module.exports = class LESSCompiler
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| 5 | brunchPlugin: yes
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| 6 | type: 'stylesheet'
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| 7 | extension: 'less'
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| 8 | _dependencyRegExp: /^ *@import ['"](.*)['"]/
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| 9 |
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| 10 | constructor: (@config) ->
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| 11 | null
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| 12 |
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| 13 | compile: (data, path, callback) ->
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| 14 | parser = new less.Parser
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| 15 | paths: [@config.paths.root, (sysPath.dirname path)],
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| 16 | filename: path
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| 17 | parser.parse data, (error, tree) =>
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| 18 | return callback error.message if error?
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| 19 | result = null
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| 20 | err = null
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| 21 |
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| 22 | try
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| 23 | result = tree.toCSS()
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| 24 | catch ex
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| 25 | err = "#{ex.type}Error:#{ex.message}"
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| 26 | if ex.filename
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| 27 | err += " in '#{ex.filename}:#{ex.line}:#{ex.column}'"
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| 28 | callback err, result
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| 29 |
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| 30 | getDependencies: (data, path, callback) =>
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| 31 | parent = sysPath.dirname path
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| 32 | dependencies = data
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| 33 | .split('\n')
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| 34 | .map (line) =>
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| 35 | line.match(@_dependencyRegExp)
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| 36 | .filter (match) =>
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| 37 | match?.length > 0
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| 38 | .map (match) =>
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| 39 | match[1]
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| 40 | .filter (path) =>
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| 41 | !!path and path isnt 'nib'
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| 42 | .map (path) =>
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| 43 | if sysPath.extname(path) isnt ".#{@extension}"
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| 44 | path + ".#{@extension}"
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| 45 | else
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| 46 | path
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| 47 | .map (path) =>
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| 48 | if path.charAt(0) is '/'
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| 49 | sysPath.join @config.paths.root, path[1..]
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| 50 | else
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| 51 | sysPath.join parent, path
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| 52 | process.nextTick =>
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| 53 | callback null, dependencies
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