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rgbds/RELEASE.md

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# Releasing
This describes for the maintainers of RGBDS how to publish a new release on
GitHub.
1. Update the following files, then commit and push.
You can use <code>git commit -m "Release <i>&lt;version&gt;</i>"</code> and `git push origin master`.
- [include/version.hpp](include/version.hpp): set appropriate values for `PACKAGE_VERSION_MAJOR`,
`PACKAGE_VERSION_MINOR`, `PACKAGE_VERSION_PATCH`, and `PACKAGE_VERSION_RC`.
**Only** define `PACKAGE_VERSION_RC` if you are publishing a release candidate!
- [Dockerfile](Dockerfile): update `ARG version`.
- [test/fetch-test-deps.sh](test/fetch-test-deps.sh): update test dependency commits
(preferably, use the latest available).
- [man/\*](man/): update dates and authors.
2. Create a Git tag formatted as <code>v<i>&lt;MAJOR&gt;</i>.<i>&lt;MINOR&gt;</i>.<i>&lt;PATCH&gt;</i></code>,
or <code>v<i>&lt;MAJOR&gt;</i>.<i>&lt;MINOR&gt;</i>.<i>&lt;PATCH&gt;</i>-rc<i>&lt;RC&gt;</i></code>
for a release candidate. <code><i>MAJOR</i></code>, <code><i>MINOR</i></code>,
<code><i>PATCH</i></code>, and <code><i>RC</i></code> should match their values from
[include/version.hpp](include/version.hpp). You can use <code>git tag <i>&lt;tag&gt;</i></code>.
3. Push the tag to GitHub. You can use <code>git push origin <i>&lt;tag&gt;</i></code>.
GitHub Actions will run the [create-release-artifacts.yaml](.github/workflows/create-release-artifacts.yaml)
workflow to detect the tag starting with "`v[0-9]`" and automatically do the following:
1. Build 32-bit and 64-bit RGBDS binaries for Windows with `cmake`.
2. Package the binaries into zip files.
3. Package the source code into a tar.gz file with `make dist`.
4. Create a draft GitHub release for the tag, attaching the three
packaged files. It will be a prerelease if the tag contains "`-rc`".
If an error occurred in the above steps, delete the tag and restart the
procedure. You can use <code>git push --delete origin <i>&lt;tag&gt;</i></code> and
<code>git tag --delete <i>&lt;tag&gt;</i></code>.
4. GitHub Actions will run the [create-release-docs.yml](.github/workflows/create-release-docs.yml)
workflow to add the release documentation to [rgbds-www](https://github.com/gbdev/rgbds-www).
This is not done automatically for prereleases, since we do not normally publish documentation
for them. If you want to manually publish prerelease documentation, such as for an April Fools
joke prerelease,
1. Clone [rgbds-www](https://github.com/gbdev/rgbds-www). You can use
`git clone https://github.com/gbdev/rgbds-www.git`.
2. Make sure that you have installed `groff` and `mandoc`. You will
need `mandoc` 1.14.5 or later to support `-O toc`.
3. Inside of the `man` directory, run <code><i>&lt;path/to/rgbds-www&gt;</i>/maintainer/man_to_html.sh <i>&lt;tag&gt;</i> *</code> then <code><i>&lt;path/to/rgbds-www&gt;</i>/maintainer/new_release.sh <i>&lt;tag&gt;</i></code>.
This will render the RGBDS documentation as HTML and PDF and copy it to
`rgbds-www`.
If you do not have `groff` installed, you can change
`groff -Tpdf -mdoc -wall` to `mandoc -Tpdf -I os=Linux` in
[maintainer/man_to_html.sh](https://github.com/gbdev/rgbds-www/blob/master/maintainer/man_to_html.sh)
and it will suffice.
4. Commit and push the documentation. You can use <code>git commit -m
"Create RGBDS <i>&lt;tag&gt;</i> documentation"</code> and `git push origin master`
(within the `rgbds-www` directory, not RGBDS).
5. Write a changelog in the GitHub draft release.
6. Click the "Publish release" button to publish it!
7. Update the `release` branch. You can use `git push origin release`.
8. Update the following related projects.
1. [rgbds-www](https://github.com/gbdev/rgbds-www): update
[src/pages/versions.mdx](https://github.com/gbdev/rgbds-www/blob/master/src/pages/versions.mdx)
to list the new release.
2. [rgbds-live](https://github.com/gbdev/rgbds-live): update the `rgbds` submodule (and
[patches/rgbds.patch](https://github.com/gbdev/rgbds-live/blob/master/patches/rgbds.patch)
if necessary) to use the new release, and
[index.html](https://github.com/gbdev/rgbds-live/blob/master/index.html)
to link to the new manual version.
3. [rgbobj](https://github.com/gbdev/rgbobj) and [rgbds-obj](https://github.com/gbdev/rgbds-obj):
make sure that object files created by the latest RGBASM can be parsed and displayed.
If the object file revision has been updated, `rgbobj` will need a corresponding release.