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							176 lines
						
					
					
						
							4.2 KiB
						
					
					
				
			
		
		
	
	
							176 lines
						
					
					
						
							4.2 KiB
						
					
					
				"use strict"; | 
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 | 
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var browserslist = require('browserslist'); | 
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 | 
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function capitalize(str) { | 
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  return str.slice(0, 1).toUpperCase() + str.slice(1); | 
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} | 
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 | 
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var NAMES = { | 
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  ie: 'IE', | 
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  ie_mob: 'IE Mobile', | 
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  ios_saf: 'iOS', | 
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  op_mini: 'Opera Mini', | 
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  op_mob: 'Opera Mobile', | 
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  and_chr: 'Chrome for Android', | 
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  and_ff: 'Firefox for Android', | 
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  and_uc: 'UC for Android' | 
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}; | 
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 | 
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function prefix(name, prefixes, note) { | 
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  var out = "  " + name; | 
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  if (note) out += ' *'; | 
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  out += ': '; | 
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  out += prefixes.map(function (i) { | 
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    return i.replace(/^-(.*)-$/g, '$1'); | 
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  }).join(', '); | 
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  out += '\n'; | 
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  return out; | 
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} | 
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 | 
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module.exports = function (prefixes) { | 
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  if (prefixes.browsers.selected.length === 0) { | 
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    return 'No browsers selected'; | 
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  } | 
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 | 
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  var versions = {}; | 
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 | 
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  for (var _iterator = prefixes.browsers.selected, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) { | 
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    var _ref; | 
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 | 
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    if (_isArray) { | 
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      if (_i >= _iterator.length) break; | 
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      _ref = _iterator[_i++]; | 
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    } else { | 
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      _i = _iterator.next(); | 
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      if (_i.done) break; | 
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      _ref = _i.value; | 
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    } | 
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 | 
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    var _browser = _ref; | 
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 | 
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    var parts = _browser.split(' '); | 
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 | 
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    var _name2 = parts[0]; | 
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    var version = parts[1]; | 
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    _name2 = NAMES[_name2] || capitalize(_name2); | 
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 | 
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    if (versions[_name2]) { | 
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      versions[_name2].push(version); | 
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    } else { | 
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      versions[_name2] = [version]; | 
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    } | 
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  } | 
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 | 
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  var out = 'Browsers:\n'; | 
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 | 
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  for (var browser in versions) { | 
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    var list = versions[browser]; | 
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    list = list.sort(function (a, b) { | 
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      return parseFloat(b) - parseFloat(a); | 
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    }); | 
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    out += "  " + browser + ": " + list.join(', ') + "\n"; | 
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  } | 
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 | 
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  var coverage = browserslist.coverage(prefixes.browsers.selected); | 
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  var round = Math.round(coverage * 100) / 100.0; | 
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  out += "\nThese browsers account for " + round + "% of all users globally\n"; | 
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  var atrules = []; | 
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 | 
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  for (var name in prefixes.add) { | 
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    var data = prefixes.add[name]; | 
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 | 
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    if (name[0] === '@' && data.prefixes) { | 
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      atrules.push(prefix(name, data.prefixes)); | 
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    } | 
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  } | 
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 | 
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  if (atrules.length > 0) { | 
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    out += "\nAt-Rules:\n" + atrules.sort().join(''); | 
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  } | 
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 | 
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  var selectors = []; | 
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 | 
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  for (var _iterator2 = prefixes.add.selectors, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) { | 
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    var _ref2; | 
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 | 
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    if (_isArray2) { | 
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      if (_i2 >= _iterator2.length) break; | 
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      _ref2 = _iterator2[_i2++]; | 
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    } else { | 
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      _i2 = _iterator2.next(); | 
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      if (_i2.done) break; | 
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      _ref2 = _i2.value; | 
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    } | 
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 | 
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    var selector = _ref2; | 
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 | 
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    if (selector.prefixes) { | 
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      selectors.push(prefix(selector.name, selector.prefixes)); | 
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    } | 
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  } | 
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 | 
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  if (selectors.length > 0) { | 
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    out += "\nSelectors:\n" + selectors.sort().join(''); | 
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  } | 
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 | 
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  var values = []; | 
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  var props = []; | 
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  var hadGrid = false; | 
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 | 
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  for (var _name in prefixes.add) { | 
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    var _data = prefixes.add[_name]; | 
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 | 
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    if (_name[0] !== '@' && _data.prefixes) { | 
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      var grid = _name.indexOf('grid-') === 0; | 
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      if (grid) hadGrid = true; | 
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      props.push(prefix(_name, _data.prefixes, grid)); | 
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    } | 
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 | 
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    if (!Array.isArray(_data.values)) { | 
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      continue; | 
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    } | 
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 | 
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    for (var _iterator3 = _data.values, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) { | 
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      var _ref3; | 
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 | 
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      if (_isArray3) { | 
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        if (_i3 >= _iterator3.length) break; | 
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        _ref3 = _iterator3[_i3++]; | 
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      } else { | 
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        _i3 = _iterator3.next(); | 
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        if (_i3.done) break; | 
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        _ref3 = _i3.value; | 
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      } | 
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 | 
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      var value = _ref3; | 
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 | 
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      var _grid = value.name.indexOf('grid') !== -1; | 
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 | 
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      if (_grid) hadGrid = true; | 
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      var string = prefix(value.name, value.prefixes, _grid); | 
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 | 
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      if (values.indexOf(string) === -1) { | 
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        values.push(string); | 
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      } | 
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    } | 
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  } | 
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 | 
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  if (props.length > 0) { | 
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    out += "\nProperties:\n" + props.sort().join(''); | 
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  } | 
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 | 
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  if (values.length > 0) { | 
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    out += "\nValues:\n" + values.sort().join(''); | 
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  } | 
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 | 
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  if (hadGrid) { | 
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    out += '\n* - Prefixes will be added only on grid: true option.\n'; | 
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  } | 
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 | 
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  if (!atrules.length && !selectors.length && !props.length && !values.length) { | 
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    out += '\nAwesome! Your browsers don\'t require any vendor prefixes.' + '\nNow you can remove Autoprefixer from build steps.'; | 
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  } | 
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 | 
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  return out; | 
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}; |