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Windows で webpack --watch が効かない時

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概要

macOS で元気に動いていた webpack-dev-server が Windows 10 でファイルの更新にうんともすんとも言わなくなったことの対応です

webpack --watch でも同様です

結論

パスを作るところでは path.join を使います

以前の設定

webpack.confg.js
const path = require("path")

module.exports = {
  context: __dirname + "/src",
  entry: {
    javascript: './main.js'
  },
  output: {
    path: __dirname + "/js",
    filename: "bundle.js",
    publicPath: "js"
  },
  module: {
    preLoaders: [
      {
        test: /\.js$/,
        loader: "eslint",
        exclude: /node_modules/
      }
    ],
    loaders: [
      {
        test: /\.js$/,
        loader: "babel-loader",
        exclude: /node_modules/
      }
    ]
  }
}

現象

こういうパスが生成されていましたが

C:\path\to/src\main.js

こうあるべきです

D:\path\to\src\main.js

修正後の設定

webpack.confg.js
const path = require("path")

module.exports = {
  context: path.join(__dirname, "src"),
  entry: {
    javascript: './main.js'
  },
  output: {
    path: path.join(__dirname, "src"),
    filename: "bundle.js",
    publicPath: "js"
  },
  module: {
    preLoaders: [
      {
        test: /\.js$/,
        loader: "eslint",
        exclude: /node_modules/
      }
    ],
    loaders: [
      {
        test: /\.js$/,
        loader: "babel-loader",
        exclude: /node_modules/
      }
    ]
  }
}
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