make registry multi arg

src/cli/cmd-add.ts

@@ -14,7 +14,7 @@ import type { GetRegistryPackument } from "../io/registry";
 import type { CheckUrlExists } from "../io/www";
 import { eachValue } from "./cli-parsing";
 import { withErrorLogger } from "./error-logging";
-import { primaryRegistryUrlOpt } from "./opt-registry";
+import { primaryRegistriesUrlOpt } from "./opt-registry";
 import { systemUserOpt } from "./opt-system-user";
 import { upstreamOpt } from "./opt-upstream";
 import { workDirOpt } from "./opt-wd";
@@ -64,7 +64,7 @@ export function makeAddCmd(
     .addArgument(otherPkgsArg)
     .addOption(addTestableOpt)
     .addOption(forceOpt)
-    .addOption(primaryRegistryUrlOpt)
+    .addOption(primaryRegistriesUrlOpt)
     .addOption(workDirOpt)
     .addOption(systemUserOpt)
     .addOption(upstreamOpt)
@@ -98,14 +98,12 @@ openupm add <pkg>@<version> [otherPkgs...]`
           options.systemUser
         );
 
-        const primaryRegistry = await loadRegistryAuthUsing(
-          readTextFile,
-          debugLog,
-          upmConfigPath,
-          options.registry
+        const sources = await Promise.all(
+          options.registry.map((it) =>
+            loadRegistryAuthUsing(readTextFile, debugLog, upmConfigPath, it)
+          )
         );
 
-        const sources = [primaryRegistry];
         if (options.upstream) sources.push(unityRegistry);
 
         const addResults = await addDependenciesUsing(

src/cli/opt-registry.ts

@@ -1,5 +1,6 @@
 import { Option } from "@commander-js/extra-typings";
 import { openupmRegistryUrl } from "../domain/registry-url";
+import { eachValue } from "./cli-parsing";
 import { mustBeRegistryUrl } from "./validators";
 
 /**
@@ -12,3 +13,14 @@ export const primaryRegistryUrlOpt = new Option(
 )
   .argParser(mustBeRegistryUrl)
   .default(openupmRegistryUrl, "Use the openupm registry by default");
+
+/**
+ * CLI option for multiple primary registries from which to resolve packages.
+ * Defaults to just {@link openupmRegistryUrl}.
+ */
+export const primaryRegistriesUrlOpt = new Option(
+  "-r, --registry <url...>",
+  "specify registry url"
+)
+  .argParser(eachValue(mustBeRegistryUrl))
+  .default([openupmRegistryUrl], "Use the openupm registry by default");