templates: add release-checklist

This collects all release steps in a release-checklist template.

.github/ISSUE_TEMPLATE/release-checklist.md

@@ -0,0 +1,62 @@
+# Release process
+
+The release process follows the usual PR-and-review flow, allowing an external reviewer to have a final check before publishing a release.
+
+## Requirements
+
+This guide requires:
+
+ * a web browser (and network connectivity)
+ * `git`
+ * GPG setup and personal key for signing
+ * [git-evtag](https://github.com/cgwalters/git-evtag/)
+ * write access to the git repository
+ * upload access to this project on GitHub
+
+## Release checklist
+
+- Prepare local environment:
+  - [ ]  `git remote get-url --push origin`
+  - [ ]  validate that the output above points to `git@github.com:ostreedev/ostree.git`
+  - [ ] `git checkout master && git pull`
+  - [ ] `git clean -fd`
+  - [ ] `RELEASE_VER=yyyy.n` (matching `package_version` in `configure.ac`)
+  - [ ] `git checkout -b release-${RELEASE_VER}`
+
+- Prepare the release commits:
+  - [ ] `sed -i -e 's/^is_release_build=no/is_release_build=yes/' configure.ac`
+  - [ ] move the new-symbols stanza (if any) from `src/libostree/libostree-devel.sym` to `src/libostree/libostree-released.sym`
+  - [ ] comment the `src/libostree/libostree-devel.sym` include in `Makefile-libostree.am`
+  - [ ] update `tests/test-symbols.sh` with the new digest from `sha256sum src/libostree/libostree-released.sym`
+  - [ ] `git commit -a -m "Release ${RELEASE_VER}"`
+  - [ ] `RELEASE_COMMIT=$(git rev-parse HEAD)`
+  - [ ] `./autogen.sh && make dist`
+  - [ ] update `year_version` and `release_version` in `configure.ac` for the next development cycle
+  - [ ] `sed -i -e 's/^is_release_build=yes/is_release_build=no/' configure.ac`
+  - [ ] `git commit -a -m 'configure: post-release version bump'`
+
+- Open a PR to create the release:
+  - [ ] `git push -u origin release-${RELEASE_VER}`
+  - [ ] open a web browser and create a PR for the branch above, titled `Release ${RELEASE_VER}`
+  - [ ] make sure the resulting PR contains two commits
+  - [ ] in the PR body, write a short summary of relevant changes since last release (using `git shortlog` too)
+
+- [ ] get the PR reviewed, approved and merged
+
+- Publish the tag:
+  - [ ] `git fetch origin && git checkout ${RELEASE_COMMIT}`
+  - [ ] `git-evtag sign v${RELEASE_VER}`
+  - [ ] `git push --tags origin v${RELEASE_VER}`
+
+- Publish the release and artifacts on GitHub:
+  - [ ] find the new tag in the [GitHub tag list](https://github.com/ostreedev/ostree/tags) and click the triple dots menu, then create a release for it
+  - [ ] write a short changelog (i.e. re-use the PR content)
+  - [ ] attach `libostree-{RELEASE_VER}.tar.xz`
+  - [ ] publish release
+
+- Clean up:
+  - [ ] `git clean -fd`
+  - [ ] `git checkout master`
+  - [ ] `git pull`
+  - [ ] `git push origin :release-${RELEASE_VER}`
+  - [ ] `git branch -d release-${RELEASE_VER}`

cfg.mk

@@ -39,4 +39,4 @@ sc_glnx_no_fd_close:
 show-vc-list-except:
 	@$(VC_LIST_EXCEPT)
 
-VC_LIST_ALWAYS_EXCLUDE_REGEX = ^ABOUT-NLS|cfg.mk|maint.mk|*.gpg|*.sig|.xz|.gz$$
+VC_LIST_ALWAYS_EXCLUDE_REGEX = ^ABOUT-NLS|cfg.mk|maint.mk|*.md|*.gpg|*.sig|.xz|.gz$$

configure.ac

@@ -1,11 +1,5 @@
 AC_PREREQ([2.63])
-dnl To do a release: follow the instructions to update libostree-released.sym from
+dnl To perform a release, follow the instructions in `docs/CONTRIBUTING.md`.
-dnl libostree-devel.sym, update the checksum in test-symbols.sh, set is_release_build=yes
-dnl below. Then make another post-release commit to bump the version and set
-dnl is_release_build=no.
-dnl Seed the release notes with `git-shortlog-with-prs <previous-release>..`. Then use
-dnl `git-evtag` to create the tag and push it. Finally, create a GitHub release and attach
-dnl the tarball from `make dist`.
 m4_define([year_version], [2020])
 m4_define([release_version], [9])
 m4_define([package_version], [year_version.release_version])

docs/CONTRIBUTING.md

@@ -177,3 +177,9 @@ Instead do this:
 ## Contributing Tutorial
 
 For a detailed walk-through on building, modifying, and testing, see this [tutorial on how to start contributing to OSTree](contributing-tutorial.md).
+
+## Release process
+
+Releases can be performed by [creating a new release ticket][new-release-ticket] and following the steps in the checklist there.
+
+[new-release-ticket]: https://github.com/ostreedev/ostree/new?labels=kind/release&template=release-checklist.md