fix: workaround for npm 8; see #26

src/commands/init.ts

@@ -35,7 +35,14 @@ export async function init(directory: any): Promise<void> {
 
   console.log();
   console.log(`${chalk.bold('Thanks!')}; installing packages using ${chalk.bold('npm')}:`);
-  await install(selectedDirectory);
+
+  try {
+    await install(selectedDirectory);
+  } catch (error) {
+    console.log(`${chalk.bold('💥')} npm couldn't install your packages; are you using ${chalk.bold('npm')} 8?`);
+    console.log(`See https://github.com/UniBO-PRISMLab/wam/issues/26`);
+    console.log(`As a workaround, you can run ${chalk.bold('npm install')} manually.`);
+  }
 
   console.log();
   console.log();

src/utils/npm-install.ts

@@ -1,18 +1,19 @@
-import npm from 'global-npm';
-
 export default async function install(projectDir: string): Promise<void> {
+  // Sadly npm 8 throws an error on import and we need to catch it
+  // here.
+  const npm = await import('npm');
   // @ts-ignore
   const version = npm.version;
   if (version.startsWith('6.')) {
-    return installV6(projectDir);
+    return installV6(projectDir, npm);
   } else if (version.startsWith('7.')) {
-    return installV7(projectDir);
+    return installV7(projectDir, npm);
   } else {
     throw new Error(`Unsupported npm version: ${version}`);
   }
 }
 
-function installV6(projectDir: string): Promise<void> {
+function installV6(projectDir: string, npm: any): Promise<void> {
   return new Promise((resolve, reject) => {
     // @ts-ignore
     npm.load({}, () => {
@@ -29,11 +30,11 @@ function installV6(projectDir: string): Promise<void> {
   });
 }
 
-function installV7(projectDir: string): Promise<void> {
+function installV7(projectDir: string, npm: any): Promise<void> {
   return new Promise((resolve, reject) => {
     npm.load(() => {
       npm.prefix = projectDir;
-      npm.commands.install([], error => {
+      npm.commands.install([], (error: Error) => {
         if (error) {
           reject(error);
         } else {