add possibility to change node dirname option dynamically

Author: BenedyktT

src/config.js

@@ -28,6 +28,7 @@ module.exports = {
     externals: ["knex", "sharp"],
     // Set default file extensions to use the raw-loader with
     rawFileExtensions: ["pem", "txt"],
-    sourceType: "module" // "script" | "module" | "unambiguous"
+    sourceType: "module", // "script" | "module" | "unambiguous"
+    nodeDirname: false
   }
 };

src/webpack.config.js

@@ -38,6 +38,7 @@ const forceExclude = config.options.forceExclude;
 const ignorePackages = config.options.ignorePackages;
 const rawFileExtensions = config.options.rawFileExtensions;
 const sourceType = config.options.sourceType;
+const nodeDirname = config.options.nodeDirname;
 const fixPackages = convertListToObject(config.options.fixPackages);
 const tsConfigPath = path.resolve(servicePath, config.options.tsConfig);
 
@@ -51,8 +52,9 @@ const ENABLE_CACHING = isLocal ? config.options.caching : false;
 
 // Handle the "all" option in externals
 // And add the forceExclude packages to it because they shouldn't be Webpacked
-const computedExternals = (
-  externals === "all" ? [nodeExternals()] : externals
+const computedExternals = (externals === "all"
+  ? [nodeExternals()]
+  : externals
 ).concat(forceExclude);
 
 const extensions = [
@@ -64,7 +66,7 @@ const extensions = [
   ".ts",
   ".tsx",
   ".graphql",
-  ".gql",
+  ".gql"
 ];
 
 // If tsConfig is specified and not found, throw an error
@@ -125,7 +127,7 @@ function babelLoader() {
     "@babel/plugin-transform-runtime",
     "@babel/plugin-proposal-class-properties",
     "@babel/plugin-proposal-optional-chaining",
-    "@babel/plugin-proposal-nullish-coalescing-operator",
+    "@babel/plugin-proposal-nullish-coalescing-operator"
   ];
 
   if (ENABLE_SOURCE_MAPS) {
@@ -146,19 +148,19 @@ function babelLoader() {
           require.resolve("@babel/preset-env"),
           {
             targets: {
-              node: nodeVersion,
-            },
-          },
-        ],
-      ],
-    },
+              node: nodeVersion
+            }
+          }
+        ]
+      ]
+    }
   };
 }
 
 function esbuildLoader(loader) {
   const options = {
     loader,
-    target: esbuildNodeVersion,
+    target: esbuildNodeVersion
   };
 
   if (ENABLE_TYPESCRIPT) {
@@ -167,7 +169,7 @@ function esbuildLoader(loader) {
 
   return {
     loader: "esbuild-loader",
-    options,
+    options
   };
 }
 
@@ -179,16 +181,16 @@ function tsLoader() {
       configFile: tsConfigPath,
       experimentalWatchApi: true,
       // Don't check types if ForTsChecker is enabled
-      transpileOnly: ENABLE_TSCHECKER,
-    },
+      transpileOnly: ENABLE_TSCHECKER
+    }
   };
 }
 
 function loaders() {
   const jsRule = {
     test: /\.js$/,
     exclude: /node_modules/,
-    use: [ENABLE_ESBUILD ? esbuildLoader("jsx") : babelLoader()],
+    use: [ENABLE_ESBUILD ? esbuildLoader("jsx") : babelLoader()]
   };
 
   const loaders = {
@@ -199,13 +201,13 @@ function loaders() {
         include: /node_modules/,
         type: "javascript/auto",
         resolve: {
-          fullySpecified: false,
-        },
+          fullySpecified: false
+        }
       },
       {
         test: /\.(graphql|gql)$/,
         exclude: /node_modules/,
-        loader: "graphql-tag/loader",
+        loader: "graphql-tag/loader"
       },
       {
         test: /\.css$/,
@@ -214,10 +216,10 @@ function loaders() {
           {
             loader: "css-loader",
             options: {
-              importLoaders: 1,
-            },
-          },
-        ],
+              importLoaders: 1
+            }
+          }
+        ]
       },
       {
         test: /\.s[ac]ss$/i,
@@ -226,19 +228,19 @@ function loaders() {
           {
             loader: "css-loader",
             options: {
-              importLoaders: 1,
-            },
+              importLoaders: 1
+            }
           },
           {
             loader: "sass-loader",
             options: {
-              implementation: require("sass"),
-            },
-          },
-        ],
+              implementation: require("sass")
+            }
+          }
+        ]
       },
-      { test: /\.gif|\.svg|\.png|\.jpg|\.jpeg$/, loader: "ignore-loader" },
-    ],
+      { test: /\.gif|\.svg|\.png|\.jpg|\.jpeg$/, loader: "ignore-loader" }
+    ]
   };
 
   if (ENABLE_TYPESCRIPT) {
@@ -249,22 +251,22 @@ function loaders() {
         [
           path.resolve(servicePath, "node_modules"),
           path.resolve(servicePath, ".serverless"),
-          path.resolve(servicePath, ".webpack"),
-        ],
-      ],
+          path.resolve(servicePath, ".webpack")
+        ]
+      ]
     };
 
     loaders.rules.push(tsRule);
   }
 
   if (rawFileExtensions && rawFileExtensions.length) {
     const rawFileRegex = `${rawFileExtensions
-      .map((rawFileExt) => `\\.${rawFileExt}`)
+      .map(rawFileExt => `\\.${rawFileExt}`)
       .join("|")}$`;
 
     loaders.rules.push({
       test: new RegExp(rawFileRegex),
-      loader: "raw-loader",
+      loader: "raw-loader"
     });
   }
 
@@ -278,14 +280,14 @@ function plugins() {
     const forkTsCheckerWebpackOptions = {
       typescript: {
         configFile: tsConfigPath,
-        build: true,
-      },
+        build: true
+      }
     };
 
     if (ENABLE_LINTING) {
       forkTsCheckerWebpackOptions.eslint = {
         files: path.join(servicePath, "**/*.ts"),
-        options: { cwd: servicePath, baseConfig: tsEslintConfig },
+        options: { cwd: servicePath, baseConfig: tsEslintConfig }
       };
     }
 
@@ -297,7 +299,7 @@ function plugins() {
       new ESLintPlugin({
         context: servicePath,
         baseConfig: jsEslintConfig,
-        extensions: "js",
+        extensions: "js"
       })
     );
 
@@ -307,7 +309,7 @@ function plugins() {
         new ESLintPlugin({
           context: servicePath,
           baseConfig: tsEslintConfig,
-          extensions: ["ts"],
+          extensions: ["ts"]
         })
       );
     }
@@ -316,22 +318,22 @@ function plugins() {
   if (copyFiles) {
     plugins.push(
       new CopyWebpackPlugin({
-        patterns: copyFiles.map(function (data) {
+        patterns: copyFiles.map(function(data) {
           return {
             to: data.to,
             context: servicePath,
-            from: path.join(servicePath, data.from),
+            from: path.join(servicePath, data.from)
           };
-        }),
+        })
       })
     );
 
     // Copy file permissions
     const buildFiles = [];
-    copyFiles.forEach(function (data) {
+    copyFiles.forEach(function(data) {
       const entries = fastGlob.sync([data.from]);
       // loop through each file matched by fg
-      entries.forEach(function (entry) {
+      entries.forEach(function(entry) {
         // get source file stat
         const stat = fs.statSync(path.resolve(servicePath, entry));
         const { serverless } = slsw.lib;
@@ -342,13 +344,13 @@ function plugins() {
           for (let key in serverless.service.functions) {
             buildFiles.push({
               fileMode: statModeToOctal(stat.mode),
-              path: path.resolve(data.to, `.webpack/${key}`, entry),
+              path: path.resolve(data.to, `.webpack/${key}`, entry)
             });
           }
         } else {
           buildFiles.push({
             fileMode: statModeToOctal(stat.mode),
-            path: path.resolve(data.to, ".webpack/service", entry),
+            path: path.resolve(data.to, ".webpack/service", entry)
           });
         }
       });
@@ -359,7 +361,7 @@ function plugins() {
   if (concatText) {
     const concatTextConfig = {};
 
-    concatText.map(function (data) {
+    concatText.map(function(data) {
       concatTextConfig.files = data.files || null;
       concatTextConfig.name = data.name || null;
       concatTextConfig.outputPath = data.outputPath || null;
@@ -380,7 +382,7 @@ function plugins() {
   for (let i = 0, l = ignorePackages.length; i < l; i++) {
     plugins.push(
       new webpack.IgnorePlugin({
-        resourceRegExp: new RegExp("^" + ignorePackages[i] + "$"),
+        resourceRegExp: new RegExp("^" + ignorePackages[i] + "$")
       })
     );
   }
@@ -399,7 +401,7 @@ function resolvePlugins() {
     plugins.push(
       new TsconfigPathsPlugin({
         configFile: tsConfigPath,
-        extensions: extensions,
+        extensions: extensions
       })
     );
   }
@@ -426,7 +428,7 @@ module.exports = {
   mode: isLocal ? "development" : "production",
   performance: {
     // Turn off size warnings for entry points
-    hints: false,
+    hints: false
   },
   resolve: {
     // Performance
@@ -436,7 +438,7 @@ module.exports = {
     // First start by looking for modules in the plugin's node_modules
     // before looking inside the project's node_modules.
     modules: [path.resolve(__dirname, "node_modules"), "node_modules"],
-    plugins: resolvePlugins(),
+    plugins: resolvePlugins()
   },
   // Add loaders
   module: loaders(),
@@ -446,18 +448,18 @@ module.exports = {
         nodeEnv: false,
         splitChunks: false,
         removeEmptyChunks: false,
-        removeAvailableModules: false,
+        removeAvailableModules: false
       }
     : {
         nodeEnv: false,
         minimizer: [
           new ESBuildMinifyPlugin({
-            target: esbuildNodeVersion,
-          }),
-        ],
+            target: esbuildNodeVersion
+          })
+        ]
       },
   plugins: plugins(),
   node: {
-    __dirname: false,
-  },
+    __dirname: nodeDirname
+  }
 };