=refactor(utils): extract command with args string conversion

Author: matejchalk

packages/utils/src/index.ts

@@ -55,6 +55,7 @@ export {
   pluralize,
   pluralizeToken,
   roundDecimals,
+  serializeCommandWithArgs,
   slugify,
   transformLines,
   truncateDescription,

packages/utils/src/lib/formatting.ts

@@ -154,3 +154,13 @@ export function transformLines(
 export function indentLines(text: string, identation: number): string {
   return transformLines(text, line => `${' '.repeat(identation)}${line}`);
 }
+
+export function serializeCommandWithArgs({
+  command,
+  args,
+}: {
+  command: string;
+  args?: string[];
+}): string {
+  return [command, ...(args ?? [])].join(' ');
+}

packages/utils/src/lib/formatting.unit.test.ts

@@ -8,6 +8,7 @@ import {
   pluralize,
   pluralizeToken,
   roundDecimals,
+  serializeCommandWithArgs,
   slugify,
   transformLines,
   truncateMultilineText,
@@ -253,3 +254,18 @@ describe('indentLines', () => {
     );
   });
 });
+
+describe('serializeCommandWithArgs', () => {
+  it('should serialize command and args into an equivalent shell string', () => {
+    expect(
+      serializeCommandWithArgs({
+        command: 'npx',
+        args: ['eslint', '.', '--format=json'],
+      }),
+    ).toBe('npx eslint . --format=json');
+  });
+
+  it('should omit args if missing', () => {
+    expect(serializeCommandWithArgs({ command: 'ls' })).toBe('ls');
+  });
+});