@alcalzone/esm2cjs - npm Package Compare versions

Comparing version 1.2.3 to 1.3.0

build/cjs/esm2cjs.d.ts

@@ -13,3 +13,4 @@ import { BuildOptions } from "esbuild";
     writePackageJson?: boolean;
+    packageJsonSideEffects?: boolean | "inherit" | string[];
 }
-export declare function esm2cjs({ inDir, outDir, globs, sourcemap, logLevel, platform, target, cleanOutDir, writePackageJson, }: ESM2CJSOptions): Promise<void>;
+export declare function esm2cjs({ inDir, outDir, globs, sourcemap, logLevel, platform, target, cleanOutDir, writePackageJson, packageJsonSideEffects, }: ESM2CJSOptions): Promise<void>;

build/cjs/esm2cjs.js

@@ -43,3 +43,3 @@ "use strict";
 const shimsDir = import_node_path.default.join(_dirname, "../../shims");
-async function esm2cjs({ inDir, outDir, globs = ["**/*.js"], sourcemap = true, logLevel = "warning", platform = "node", target = "node18", cleanOutDir = false, writePackageJson = true }) {
+async function esm2cjs({ inDir, outDir, globs = ["**/*.js"], sourcemap = true, logLevel = "warning", platform = "node", target = "node18", cleanOutDir = false, writePackageJson = true, packageJsonSideEffects = "inherit" }) {
   if (cleanOutDir)
@@ -78,8 +78,23 @@ await import_fs_extra.default.emptyDir(outDir);
   if (writePackageJson) {
-    await import_fs_extra.default.writeJSON(import_node_path.default.join(inDir, "package.json"), { type: "module" }, {
-      spaces: 4
-    });
-    await import_fs_extra.default.writeJSON(import_node_path.default.join(outDir, "package.json"), { type: "commonjs" }, {
-      spaces: 4
-    });
+    let inheritedSideEffects;
+    if (packageJsonSideEffects === "inherit") {
+      const parentPackageJson = await import_fs_extra.default.readJSON(import_node_path.default.join(process.cwd(), "package.json")).catch(() => void 0);
+      if (parentPackageJson?.sideEffects != void 0) {
+        inheritedSideEffects = {
+          sideEffects: parentPackageJson.sideEffects
+        };
+      }
+    }
+    const sideEffects = (
+      // Assume the package has side effects, unless explicitly stated otherwise
+      packageJsonSideEffects === true || packageJsonSideEffects === void 0 ? {} : packageJsonSideEffects === "inherit" ? inheritedSideEffects ?? {} : { sideEffects: packageJsonSideEffects }
+    );
+    await import_fs_extra.default.writeJSON(import_node_path.default.join(inDir, "package.json"), {
+      type: "module",
+      ...sideEffects
+    }, { spaces: 4 });
+    await import_fs_extra.default.writeJSON(import_node_path.default.join(outDir, "package.json"), {
+      type: "commonjs",
+      ...sideEffects
+    }, { spaces: 4 });
   }
@@ -86,0 +101,0 @@ }

build/esm/esm2cjs.d.ts

@@ -13,3 +13,4 @@ import { BuildOptions } from "esbuild";
     writePackageJson?: boolean;
+    packageJsonSideEffects?: boolean | "inherit" | string[];
 }
-export declare function esm2cjs({ inDir, outDir, globs, sourcemap, logLevel, platform, target, cleanOutDir, writePackageJson, }: ESM2CJSOptions): Promise<void>;
+export declare function esm2cjs({ inDir, outDir, globs, sourcemap, logLevel, platform, target, cleanOutDir, writePackageJson, packageJsonSideEffects, }: ESM2CJSOptions): Promise<void>;

build/esm/esm2cjs.js

@@ -8,3 +8,3 @@ import path from "node:path";
 export const shimsDir = path.join(_dirname, "../../shims");
-export async function esm2cjs({ inDir, outDir, globs = ["**/*.js"], sourcemap = true, logLevel = "warning", platform = "node", target = "node18", cleanOutDir = false, writePackageJson = true, }) {
+export async function esm2cjs({ inDir, outDir, globs = ["**/*.js"], sourcemap = true, logLevel = "warning", platform = "node", target = "node18", cleanOutDir = false, writePackageJson = true, packageJsonSideEffects = "inherit", }) {
     // Clean the output dir if necessary
@@ -51,10 +51,31 @@ if (cleanOutDir)
     if (writePackageJson) {
-        await fs.writeJSON(path.join(inDir, "package.json"), { type: "module" }, {
-            spaces: 4,
-        });
-        await fs.writeJSON(path.join(outDir, "package.json"), { type: "commonjs" }, {
-            spaces: 4,
-        });
+        let inheritedSideEffects;
+        if (packageJsonSideEffects === "inherit") {
+            const parentPackageJson = await fs
+                .readJSON(path.join(process.cwd(), "package.json"))
+                .catch(() => undefined);
+            if (parentPackageJson?.sideEffects != undefined) {
+                inheritedSideEffects = {
+                    sideEffects: parentPackageJson.sideEffects,
+                };
+            }
+        }
+        const sideEffects = 
+        // Assume the package has side effects, unless explicitly stated otherwise
+        packageJsonSideEffects === true ||
+            packageJsonSideEffects === undefined
+            ? {}
+            : packageJsonSideEffects === "inherit"
+                ? inheritedSideEffects ?? {}
+                : { sideEffects: packageJsonSideEffects };
+        await fs.writeJSON(path.join(inDir, "package.json"), {
+            type: "module",
+            ...sideEffects,
+        }, { spaces: 4 });
+        await fs.writeJSON(path.join(outDir, "package.json"), {
+            type: "commonjs",
+            ...sideEffects,
+        }, { spaces: 4 });
     }
 }
 //# sourceMappingURL=esm2cjs.js.map

package.json

@@ -7,3 +7,3 @@ {
   "description": "Command line utility to compile a JS project from ES modules to CommonJS",
-  "version": "1.2.3",
+  "version": "1.3.0",
   "bin": "bin/esm2cjs.cjs",
@@ -10,0 +10,0 @@ "type": "module",

README.md

@@ -153,2 +153,5 @@ # esm2cjs
 -->
+### 1.3.0 (2024-11-06)
+* Support specifying `sideEffects` in the generated `package.json` as a hint for bundlers
+
 ### 1.2.3 (2024-11-04)
@@ -155,0 +158,0 @@ * Update default target to node18

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

29589

increased by16.87%

Lines of code

343

increased by16.67%

Number of lines in readme file

173

increased by1.76%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes