Start support for binaries that may have command behind double-dash

packages/knip/src/binaries/fallback.ts

@@ -6,12 +6,16 @@ import { toBinary, toDeferResolve, toEntry } from '../util/input.js';
 // Binaries that spawn a child process for the binary at first positional arg (and don't have custom resolver already)
 const spawningBinaries = ['cross-env', 'retry-cli'];
 
+// Binaries that have a new script behind the double-dash/end-of-command (and don't have custom resolver already)
+const endOfCommandBinaries = ['dotenvx'];
+
 const positionals = new Set(['babel-node', 'esbuild', 'execa', 'vite-node', 'zx']);
 
 export const resolve: BinaryResolver = (binary, args, { fromArgs }) => {
-  const parsed = parseArgs(args, { boolean: ['quiet', 'verbose'] });
+  const parsed = parseArgs(args, { boolean: ['quiet', 'verbose'], '--': endOfCommandBinaries.includes(binary) });
   const bin = binary.startsWith('.') ? toEntry(binary) : toBinary(binary);
   const shiftedArgs = spawningBinaries.includes(binary) ? fromArgs(args) : [];
   const pos = positionals.has(binary) ? [toDeferResolve(parsed._[0])] : [];
-  return compact([bin, ...shiftedArgs, ...pos]);
+  const newCommand = parsed['--'] && parsed['--'].length > 0 ? fromArgs(parsed['--']) : [];
+  return compact([bin, ...shiftedArgs, ...pos, ...newCommand]);
 };

packages/knip/test/util/get-inputs-from-scripts.test.ts

@@ -211,6 +211,10 @@ test('getInputsFromScripts (nodemon)', () => {
   t('nodemon script.js', [toBinary('nodemon'), toDeferResolveEntry('script.js')]);
 });
 
+test('getInputsFromScripts (double-dash)', () => {
+  t('dotenvx run --convention=nextjs -- tsx watch src/index.ts', [toBinary('dotenvx'), toBinary('tsx'), toDeferResolveEntry('src/index.ts')]);
+});
+
 test('getInputsFromScripts (bash expressions)', () => {
   t('if test "$NODE_ENV" = "production" ; then make install ; fi ', [toBinary('make')]);
   t('node -e "if (NODE_ENV === \'production\'){process.exit(1)} " || make install', [toBinary('node'), toBinary('make')]);