feat: support multiple built-charm-path

dist/upload-charm/index.js

@@ -42541,7 +42541,7 @@ class UploadCharmAction {
                 yield this.snap.install('charmcraft', this.charmcraftChannel);
                 process.chdir(this.charmPath);
                 const charms = this.builtCharmPath
-                    ? [this.builtCharmPath]
+                    ? this.builtCharmPath.split(',').map((path) => path.trim())
                     : yield this.charmcraft.pack(this.destructive);
                 const overrides = this.overrides;
                 const imageResults = yield this.charmcraft.uploadResources(overrides);

src/actions/upload-charm/upload-charm.test.ts

@@ -15,6 +15,14 @@ describe('the upload charm action', () => {
       builtCharmPath: '',
     }, // charmcraft pack produces two files
     { charmcraftPackOutput: [], builtCharmPath: '/path/to/prebuilt.charm' }, // built-charm-path input option is provided
+    {
+      charmcraftPackOutput: [],
+      builtCharmPath: '/path/to/prebuilt1.charm,/path/to/prebuilt2.charm',
+    }, // Multiple comma paths
+    {
+      charmcraftPackOutput: [],
+      builtCharmPath: '/path/to/prebuilt1.charm, /path/to/prebuilt2.charm',
+    }, // Multiple comma paths with spaces
   ].forEach(({ charmcraftPackOutput, builtCharmPath }) => {
     it('should call charmcraft upload correct number of times with correct parameters', async () => {
       jest.spyOn(core, 'getInput').mockImplementation((inputOption) => {
@@ -45,12 +53,18 @@ describe('the upload charm action', () => {
       await action.run();
 
       if (builtCharmPath) {
-        expect(action.charmcraft.upload).toHaveBeenCalledTimes(1);
-        expect(action.charmcraft.upload).toHaveBeenCalledWith(
-          builtCharmPath,
-          'something',
-          ['f1', 'f2', 'f1', 'f2', 'f1', 'f2'],
+        const expectedPaths = builtCharmPath.split(',').map((p) => p.trim());
+        expect(action.charmcraft.upload).toHaveBeenCalledTimes(
+          expectedPaths.length,
         );
+        expectedPaths.forEach((expectedPath, index) => {
+          expect(action.charmcraft.upload).toHaveBeenNthCalledWith(
+            index + 1,
+            expectedPath,
+            'something',
+            ['f1', 'f2', 'f1', 'f2', 'f1', 'f2'],
+          );
+        });
       } else {
         expect(action.charmcraft.upload).toHaveBeenCalledTimes(
           charmcraftPackOutput.length,

src/actions/upload-charm/upload-charm.ts

@@ -57,7 +57,7 @@ export class UploadCharmAction {
       process.chdir(this.charmPath!);
 
       const charms = this.builtCharmPath
-        ? [this.builtCharmPath]
+        ? this.builtCharmPath.split(',').map((path) => path.trim())
         : await this.charmcraft.pack(this.destructive);
 
       const overrides = this.overrides!;

upload-charm/README.md

@@ -34,7 +34,7 @@ If you want to use a new resource, you'll have to cut a new resource revision **
 | Key                  | Description                                                                                                      | Required |
 | -------------------- | ---------------------------------------------------------------------------------------------------------------- | -------- |
 | `charm-path`         | Path to the charm we want to publish. Defaults to the current working directory.                                 |          |
-| `built-charm-path`   | Path to a pre-built charm we want to publish.                                                                    |          |
+| `built-charm-path`   | Path to one or more pre-built charms as comma-separated values.                                                  |          |
 | `channel`            | Channel on charmhub to publish the charm in. Defaults to `latest/edge`.                                          |          |
 | `credentials`        | Credentials [exported](https://juju.is/docs/sdk/remote-env-auth) using `charmcraft login --export`.              | ✔️       |
 | `destructive-mode`   | Whether or not to pack using destructive mode. Defaults to `true`.                                               |          |

upload-charm/action.yaml

@@ -26,7 +26,10 @@ inputs:
   built-charm-path:
     required: false
     description: |
-      Path to a pre-built charm.
+      Path to one or more pre-built charms as comma-separated values.
+      If provided, charmcraft pack will not be executed.
+      - Single charm: `/tmp/build/my-charm.charm`
+      - Multiple charms: `/tmp/build/my-charm.charm,/tmp/build/my-charm_amd64.charm`
   charmcraft-channel:
     required: false
     default: 'latest/stable'