fix: automatically remove trailing slash if in registry uri

README.md

@@ -100,8 +100,6 @@ To install from a custom registry, use the `--registry` option:
 
 `install-peerdeps my-custom-package --registry https://registry.mycompany.com`.
 
-If you're having problems, make sure that you don't have a trailing slash at the end of the registry URI (e.g. make sure you have `https://registry.mycompany.com` and NOT `https://registry.mycompany.com/`).
-
 ### Proxies
 To use this tool with a proxy, set the `HTTPS_PROXY` environment variable (if you're using a custom registry and it is only accessible over HTTP, though, set the `HTTP_PROXY` environment variable).
 

src/cli.js

@@ -111,6 +111,15 @@ if (program.dev && program.silent) {
   process.exit(1);
 }
 
+if (program.registry) {
+  const { registry } = program;
+  // Check if last character in registry is a trailing slash
+  if (registry.substr(-1) === "/") {
+    // If the last character is a trailing slash, remove it
+    program.registry = registry.slice(0, -1);
+  }
+}
+
 // Define options object to pass to
 // the installPeerDeps function
 const options = {