chushihua

node_modules/px2rem/bin/px2rem.js

@@ -0,0 +1,86 @@
+#!/usr/bin/env node
+
+var program = require('commander');
+var pkg = require('../package.json');
+var Px2rem = require('../index');
+var chalk = require('chalk');
+var path = require('path');
+var fs = require('fs-extra');
+
+
+// string to variables of proper type（thanks to zepto）
+function deserializeValue(value) {
+  var num;
+  try {
+    return value ?
+      value == "true" || value == true ||
+      (value == "false" || value == false ? false :
+        value == "null" ? null :
+        !/^0/.test(value) && !isNaN(num = Number(value)) ? num :
+        /^[\[\{]/.test(value) ? JSON.parse(value) :
+        value)
+      : value;
+  } catch (e) {
+    return value;
+  }
+}
+
+function saveFile(filePath, content) {
+  fs.createFileSync(filePath);
+  fs.writeFileSync(filePath, content, {encoding: 'utf8'});
+  console.log(chalk.green.bold('[Success]: ') + filePath);
+}
+
+
+program.version(pkg.version)
+  .option('-u, --remUnit [value]', 'set `rem` unit value (default: 75)', 75)
+  .option('-x, --threeVersion [value]', 'whether to generate @1x, @2x and @3x version stylesheet (default: false)', false)
+  .option('-r, --remVersion [value]', 'whether to generate rem version stylesheet (default: true)', true)
+  .option('-b, --baseDpr [value]', 'set base device pixel ratio (default: 2)', 2)
+  .option('-p, --remPrecision [value]', 'set rem value precision (default: 6)', 6)
+  .option('-o, --output [path]', 'the output file dirname')
+  .parse(process.argv);
+
+if (!program.args.length) {
+  console.log(chalk.yellow.bold('[Info]: ') + 'No files to process!');
+  return false;
+}
+
+var config = {
+  remUnit: deserializeValue(program.remUnit),
+  threeVersion: deserializeValue(program.threeVersion),
+  remVersion: deserializeValue(program.remVersion),
+  baseDpr: deserializeValue(program.baseDpr),
+  remPrecision: deserializeValue(program.remPrecision)
+};
+
+var px2remIns = new Px2rem(config);
+
+program.args.forEach(function (filePath) {
+
+  if (path.extname(filePath) !== '.css') {
+    return;
+  }
+
+  var cssText = fs.readFileSync(filePath, {encoding: 'utf8'});
+  var outputPath = program.output || path.dirname(filePath);
+  var fileName = path.basename(filePath);
+
+  // generate @1x, @2x and @3x version stylesheet
+  if (config.threeVersion) {
+    for (var dpr = 1; dpr <= 3; dpr++) {
+      var newCssText = px2remIns.generateThree(cssText, dpr);
+      var newFileName = fileName.replace(/(.debug)?.css/, dpr + 'x.debug.css');
+      var newFilepath = path.join(outputPath, newFileName);
+      saveFile(newFilepath, newCssText);
+    }
+  }
+
+  // generate rem version stylesheet
+  if (config.remVersion) {
+    var newCssText = px2remIns.generateRem(cssText);
+    var newFileName = fileName.replace(/(.debug)?.css/, '.debug.css');
+    var newFilepath = path.join(outputPath, newFileName);
+    saveFile(newFilepath, newCssText);
+  }
+});