Mailspring/build/tasks/prebuild-less-task.coffee

53 lines
1.9 KiB
CoffeeScript

path = require 'path'
fs = require 'fs'
LessCache = require 'less-cache'
module.exports = (grunt) ->
grunt.registerMultiTask 'prebuild-less', 'Prebuild cached of compiled LESS files', ->
prebuiltConfigurations = [
['ui-light', 'ui-dark']
]
directory = path.join(grunt.config.get('atom.appDir'), 'less-compile-cache')
for configuration in prebuiltConfigurations
importPaths = grunt.config.get('less.options.paths')
themeMains = []
for theme in configuration
# TODO Use AtomPackage class once it runs outside of an Atom context
themePath = path.resolve('node_modules', theme)
if fs.existsSync(themePath) is false
themePath = path.resolve('internal_packages', theme)
if fs.existsSync(path.join(themePath, 'stylesheets'))
stylesheetsDir = path.join(themePath, 'stylesheets')
else
stylesheetsDir = path.join(themePath, 'styles')
{main} = grunt.file.readJSON(path.join(themePath, 'package.json'))
main ?= 'index.less'
mainPath = path.join(themePath, main)
themeMains.push(mainPath) if grunt.file.isFile(mainPath)
importPaths.unshift(stylesheetsDir) if grunt.file.isDir(stylesheetsDir)
grunt.verbose.writeln("Building LESS cache for #{configuration.join(', ').yellow}")
lessCache = new LessCache
cacheDir: directory
resourcePath: path.resolve('.')
importPaths: importPaths
cssForFile = (file) ->
baseVarImports = """
@import "variables/ui-variables";
"""
less = fs.readFileSync(file, 'utf8')
lessCache.cssForFile(file, [baseVarImports, less].join('\n'))
for file in @filesSrc
grunt.verbose.writeln("File #{file.cyan} created in cache.")
cssForFile(file)
for file in themeMains
grunt.verbose.writeln("File #{file.cyan} created in cache.")
cssForFile(file)