add task to generate changelog and describe the usage in the contribution guide

Author: rhysd

.gitignore

@@ -2,6 +2,7 @@
 /actionlint.exe
 /.testtimestamp
 /.linttimestamp
+/.bumptimestamp
 /env.sh
 /.github/actionlint.yaml
 /.github/actionlint.yml

CHANGELOG.md

@@ -4,6 +4,7 @@
 - Disallow the usage of popular actions that run on `node16` runner. The `node16` runner [will reach the end of life on November 12](https://github.blog/changelog/2024-09-25-end-of-life-for-actions-node16/).
   - In case of the error, please update your actions to the latest version so that they run on the latest `node20` runner.
   - If you're using self-hosted runner and you cannot upgrade your runner to `node20` soon, please consider to ignore the error by the `paths` configuration described below.
+  - If you're using `actions/upload-artifact@v3` and `actions/download-artifact@v3` on GHES, please replace them with `actions/upload-artifact@v3-node20` and `actions/download-artifact@v3-node20`. ([#468](https://github.com/rhysd/actionlint/issues/468))
 - Provide the configuration for ignoring errors by regular expressions in `actionlint.yml` (or `actionlint.yaml`). Please see the [document](https://github.com/rhysd/actionlint/blob/v1.7.4/docs/config.md) for more details. ([#217](https://github.com/rhysd/actionlint/issues/217), [#342](https://github.com/rhysd/actionlint/issues/342))
   - The `paths` is a mapping from the file path glob pattern to the corresponding configuration. The `ignore` configuration is a list of regular expressions to match error messages (similar to the `-ignore` command line option).
     ```yaml
@@ -14,7 +15,7 @@
           # Ignore the specific error from shellcheck
           - 'shellcheck reported issue in this script: SC2086:.+'
       # This pattern only matches '.github/workflows/release.yaml' file.
-      .github/workflows/self-hosted.yaml:
+      .github/workflows/release.yaml:
         ignore:
           # Ignore errors from the old runner check. This may be useful for (outdated) self-hosted runner environment.
           - 'the runner of ".+" action is too old to run on GitHub Actions'

CONTRIBUTING.md

@@ -115,7 +115,8 @@ When releasing v1.2.3 as example:
    - The CI job also updates version string in `./scripts/download-actionlint.bash`
 4. Open the pre-release at [release page](https://github.com/rhysd/actionlint/releases) with browser
 5. Write up release notes, uncheck pre-release checkbox and publish the new release
-6. Run `changelog-from-release > CHANGELOG.md` locally to update [CHANGELOG.md](./CHANGELOG.md) and make a commit for the change
+6. Run `make CHANGELOG.md` to update [CHANGELOG.md](./CHANGELOG.md) and make a commit for the change. This step requires
+   [changelog-from-release](https://github.com/rhysd/changelog-from-release) installed on your local.
 7. Run `git pull` to merge upstream changes to local `main` branch and run `git push origin main`
 8. Update the playground by `./playground/deploy.bash` if it is not updated yet for the release
 

Makefile

@@ -68,6 +68,9 @@ scripts/generate-actionlint-matcher/test/no_escape.txt: actionlint
 scripts/generate-actionlint-matcher/test/want.json: actionlint
 	./actionlint -format '{{json .}}' ./testdata/err/one_error.yaml > scripts/generate-actionlint-matcher/test/want.json || true
 
+CHANGELOG.md: .bumptimestamp
+	changelog-from-release > CHANGELOG.md
+
 c clean:
 	rm -f ./actionlint ./.testtimestamp ./.linttimestamp ./actionlint_fuzz-fuzz.zip ./man/actionlint.1 ./man/actionlint.1.html ./actionlint-workflow-ast
 	rm -rf ./corpus ./crashers

scripts/bump-version.bash

@@ -88,4 +88,7 @@ if [[ "$OSTYPE" == darwin* ]]; then
     open "$job_url"
 fi
 
+echo "Update version bump timestamp"
+touch .bumptimestamp
+
 echo 'Done.'