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Make the release process more atomic between major releases.

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Rather than keeping a branch named "release" where we merge every release,
we want to keep "disposable" release branches for each release.

This will make much easier to create new major releases, since we always
want to start these releases from what we have in master. We create a
disposable release branch from master that we'll only use during the lifecycle
of the major release.

Once the release branch is created, the release captain will use a "bump" branch
in her own fork to cherry pick changes that will need to be applied to this
release. We'll track those changes in a pull request between the disposable release
branch and the bump branch.

Signed-off-by: David Calavera <david.calavera@gmail.com>
This commit is contained in:
David Calavera 2015-07-27 16:36:57 -07:00
parent 7886056d74
commit bca8159174
1 changed files with 35 additions and 7 deletions
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42
project/RELEASE-CHECKLIST.md
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@ -24,22 +24,49 @@ git remote add $GITHUBUSER git@github.com:$GITHUBUSER/docker.git
### 1. Pull from master and create a release branch
Note: Even for major releases, all of X, Y and Z in vX.Y.Z must be specified (e.g. v1.0.0).
All releases version numbers will be of the form: vX.Y.Z where X is the major
version number, Y is the minor version number and Z is the patch release version number.
#### Major releases
The release branch name is just vX.Y because it's going to be the basis for all .Z releases.
```bash
export BASE=vX.Y
export VERSION=vX.Y.Z
git fetch origin
git branch -D release || true
git checkout --track origin/release
git checkout --track origin/master
git checkout -b release/$BASE
```
This new branch is going to be the base for the release. We need to push it to origin so we
can track the cherry-picked changes and the version bump:
```bash
git push origin release/$BASE
```
When you have the major release branch in origin, we need to create the bump fork branch
that we'll push to our fork:
```bash
git checkout -b bump_$VERSION
```
If it's a regular release, we usually merge master.
#### Patch releases
If we have the release branch in origin, we can create the forked bump branch from it directly:
```bash
git merge origin/master
export VERSION=vX.Y.Z
export PATCH=vX.Y.Z+1
git fetch origin
git checkout --track origin/release/$BASE
git checkout -b bump_$PATCH
```
Otherwise, if it is a hotfix release, we cherry-pick only the commits we want.
We cherry-pick only the commits we want into the bump branch:
```bash
# get the commits ids we want to cherry-pick
git log
@ -169,7 +196,7 @@ make AWS_S3_BUCKET=beta-docs.docker.io BUILD_ROOT=yes docs-release
git add VERSION CHANGELOG.md
git commit -m "Bump version to $VERSION"
git push $GITHUBUSER bump_$VERSION
echo "https://github.com/$GITHUBUSER/docker/compare/docker:release...$GITHUBUSER:bump_$VERSION?expand=1"
echo "https://github.com/$GITHUBUSER/docker/compare/docker:release/$BASE...$GITHUBUSER:bump_$VERSION?expand=1"
```
That last command will give you the proper link to visit to ensure that you
@ -185,6 +212,7 @@ Replace "..." with the respective credentials:
```bash
docker build -t docker .
docker run \
-e AWS_S3_BUCKET=test.docker.com \
-e AWS_ACCESS_KEY="..." \