fix(plugin-example): fix examples generation on Windows

Use path normalization to make example generation work on Windows.

plugins/mos-plugin-example/lib/hook-console-log.js

@@ -3,6 +3,7 @@ module.exports = hookConsoleLog
 
 const callsites = require('callsites')
 const removeLastEOL = require('../../remove-last-eol')
+const normalizePath = require('normalize-path')
 
 const originalLog = console.log
 
@@ -38,7 +39,7 @@ function callsiteForFile (fileName) {
 
 function trace () {
   return callsites().map(callsite => ({
-    file: callsite.getFileName() || '?',
+    file: normalizePath(callsite.getFileName()) || '?',
     line: callsite.getLineNumber(),
     column: callsite.getColumnNumber(),
   }))

plugins/mos-plugin-example/lib/stdout-to-comments.js

@@ -7,15 +7,16 @@ const fs = require('fs')
 const spawn = require('cross-spawn-async')
 const path = require('path')
 const SourceMapConsumer = require('source-map').SourceMapConsumer
-const hookPath = path.resolve(__dirname, './hook-console-log')
+const normalizePath = require('normalize-path')
+const hookPath = normalizePath(path.resolve(__dirname, './hook-console-log'))
 const position = require('file-position')
 
 function stdoutToComments (filePath) {
   return new Promise((resolve, reject) => {
     fs.readFile(filePath, 'utf8', (err, content) => {
       if (err) return reject(err)
 
-      const tmpFileName = filePath + Math.random() + '.js'
+      const tmpFileName = normalizePath(filePath + Math.random() + '.js')
       fs.writeFileSync(tmpFileName, addHook({
         code: content,
         filePath: tmpFileName,