Add ignore_refs parameter

Adds a new param `ignore_refs` to skip refs that match glob
expressions. This defaults to `dependabot/*` to ignore dependabot runs
which don't have access to secrets.

.github/workflows/ci.yaml

@@ -394,3 +394,30 @@ jobs:
           push: true # Push to re-create.
           archive: true # Archive the pushed module.
           comment: false
+  test-ignore-refs:
+    # Check the ignore_refs input.
+    runs-on: ubuntu-latest
+    needs:
+      - test-build
+    steps:
+      - uses: actions/checkout@v4
+      - env:
+          BUF_USERNAME: ${{ secrets.BUF_USERNAME }}
+        run: |
+          mkdir -p foo/v1
+          printf "version: v2\nname: ${BUF_MODULE}\n" > buf.yaml
+          printf "syntax = \"proto3\";\npackage foo.v1;\nmessage Bar {}\n" > foo/v1/bar.proto
+      - uses: ./
+        with:
+          username: ${{ secrets.BUF_USERNAME }}
+          token: ${{ secrets.BUF_TOKEN }}
+          ignore_refs: ${{ github.ref_name }}
+          lint: false
+          format: false
+          breaking: false
+          push: false
+          archive: false
+          comment: false
+        id: buf-action
+      - run: |
+          echo "${{ steps.buf-action.outputs.out }}" | grep "Skipping steps due to ref"

README.md

@@ -73,6 +73,7 @@ Add these parameters under the `with` section of the `uses` step in the workflow
 | `exclude_imports`               | Exclude files imported by the target modules. | False |
 | `exclude_paths`                 | Exclude specific files or directories, e.g. "proto/a/a.proto", "proto/a" (separated by newlines). | |
 | `pr_comment`                    | Comment the results on the pull request. | Only on pull requests |
+| `ignore_refs`                   | Ignore specific refs expressed as glob expressions, e.g. "main", "develope/*" (separated by newlines). | Ignores dependabot ("dependabot/*") |
 | `format`                        | Whether to run the formatting step. | Runs on pushes to Git PR |
 | `lint`                          | Whether to run the linting step. | Runs on pushes to Git PR |
 | `breaking`                      | Whether to run the breaking change detection step. | Runs on pushes to Git PR |

action.yml

@@ -62,6 +62,16 @@ inputs:
       Comment on the pull request with the results of each step.
     required: false
     default: ${{ github.event_name == 'pull_request' }}
+  ignore_refs:
+    description: |-
+      Ignore specific refs expressed as glob expressions (separated by newlines).
+      Example:
+        with:
+          ignore_refs: |
+            main
+            develop/*
+    required: false
+    default: "dependabot/*"
 
   input:
     description: |-