Draft: FEAT - opt-in option to recursively find parents package.json on affected files from others package managers

action.yml

@@ -36,6 +36,12 @@ inputs:
     description: 'Generate signed commits. This uses a different Github API which conflicts with custom author information.'
     required: false
     default: 'false'
+  packages-detection-strategy:
+    description: |
+      The detection strategy for the affected packages, since this action only relies on affected files diff.
+      Possible values: `diff-only` (default) and `recursive-discovery`
+    required: true
+    default: diff-only
 
 # Define your outputs here.
 outputs:

src/__tests__/generatePossibleParentsPackages.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from '@jest/globals';
+import { generatePossiblesParentsPackages } from '../generatePossiblesParentsPackages.js';
+
+describe('generatePossiblesParentsPackages', () => {
+    describe('paths with package.json', () => {
+        it('will return an 1 length array with the provided path', () => {
+            expect(generatePossiblesParentsPackages("package.json")).toEqual(['package.json']);
+            expect(generatePossiblesParentsPackages("example/package.json")).toEqual(['example/package.json']);
+            expect(generatePossiblesParentsPackages("example/foo/package.json")).toEqual(['example/foo/package.json']);
+        });
+    })
+
+    describe('paths without package.json', () => {
+        it('will return an dynamic length array with the provided path', () => {
+            expect(generatePossiblesParentsPackages("dotnet.csproj")).toEqual(['package.json']);
+            expect(generatePossiblesParentsPackages("example/dotnet.csproj")).toEqual(['example/package.json', 'package.json']);
+            expect(generatePossiblesParentsPackages("example/foo/dotnet.csproj")).toEqual(['example/foo/package.json', 'example/package.json', 'package.json']);
+        });
+    })
+});

src/generatePossiblesParentsPackages.ts

@@ -0,0 +1,20 @@
+import * as path from "path"
+
+export const generatePossiblesParentsPackages = function(patchFilename: string) {
+  const generator = function*() {
+    if(patchFilename === 'package.json' || patchFilename.endsWith('/package.json')) {
+      yield patchFilename;
+      return;
+    };
+
+    let cursor = patchFilename;
+
+    do {
+      cursor = path.dirname(cursor);
+      const packageJson = path.join(cursor, "package.json");
+      yield packageJson;
+    } while(path.dirname(cursor) !== cursor);
+  }
+
+  return Array.from(generator())
+}