fix(cli): parse multiple config args to last item of array (#164)

Closes #146

packages/cli/src/lib/yargs-cli.spec.ts

@@ -20,6 +20,22 @@ describe('yargsCli', () => {
     expect(parsedArgv.verbose).toBe(false);
   });
 
+  it('multiple config args should be parsed to last item from array', async () => {
+    const args: string[] = ['--config=./config.a.ts', '--config=./config.b.ts'];
+    const parsedArgv = await yargsCli(args, {
+      options,
+    }).parseAsync();
+    expect(parsedArgv.config).toBe('./config.b.ts');
+  });
+
+  it('single config arg should be parsed as a single string', async () => {
+    const args: string[] = ['--config=./config.a.ts'];
+    const parsedArgv = await yargsCli(args, {
+      options,
+    }).parseAsync();
+    expect(parsedArgv.config).toBe('./config.a.ts');
+  });
+
   it('global options should parse correctly', async () => {
     const args: string[] = objectToCliArgs({
       verbose: true,

packages/cli/src/lib/yargs-cli.ts

@@ -49,6 +49,12 @@ export function yargsCli(
       'strip-dashed': true,
     } satisfies Partial<ParserConfigurationOptions>)
     .array('persist.format')
+    .coerce('config', (config: string | string[]) => {
+      if (Array.isArray(config)) {
+        return config[config.length - 1];
+      }
+      return config;
+    })
     .options(options);
   //.demandCommand(...demandCommand);