Automatic releases¶

The key point with using this package is to automate your releases and stop worrying about version numbers. Different approaches to automatic releases and publishing with the help of this package can be found below. Using a CI is the recommended approach.

Environment checks¶

On publish, a few environment checks will run. Below are descriptions of what the different checks do and under what condition they will run.

frigg¶

Condition: Environment variable FRIGG is 'true'

Checks for frigg to ensure that the build is not a pull-request and on the correct branch. The branch check, checks against the branch that frigg said it checked out, not the current branch.

semaphore¶

Condition: Environment variable SEMAPHORE is 'true'

Checks for semaphore to ensure that the build is not a pull-request and on the correct branch. The branch check, checks against the branch that semaphore said it checked out, not the current branch. It also checks that the thread state is not failure.

travis¶

Condition: Environment variable TRAVIS is 'true'

Checks for travis to ensure that the build is not a pull-request and on the correct branch. The branch check, checks against the branch that travis said it checked out, not the current branch.

CircleCI¶

Condition: Environment variable CIRCLECI is 'true'

Checks for circle-ci to ensure that the build is not a pull-request and on the correct branch. The branch check, checks against the branch that circle-ci said it checked out, not the current branch.

GitLab CI¶

Condition: Environment variable GITLAB_CI is 'true'

Checks for gitlab-ci to ensure that the build is on the correct branch. The branch check, checks against the branch that gitlab-ci said it checked out, not the current branch.

Jenkins¶

Condition: Environment variable JENKINS_URL is set.

Determines the branch name from either the environment variable BRANCH_NAME or the environment variable GIT_BRANCH, and checks to ensure that the build is on the correct branch. Also, if CHANGE_ID is set, meaning it is a PR from a multi-branch pipeline, the build will not be automatically released.

Publish with CI¶

Add python setup.py publish or semantic-release publish as an after success task on your preferred Continuous Integration service. Ensure that you have configured the CI so that it can upload to an artifact repository and push to git and it should be ready to roll.

Configuring distribution upload¶

In order to upload to an artifact repository, Python Semantic Release needs credentials to access the project. You will need to set the environment variables REPOSITORY_USERNAME and REPOSITORY_PASSWORD. Use repository_url or REPOSITORY_URL to set a custom repository url. As an alternative the repository and/or credentials can be configured using the ~/.pypirc file.

Warning

Make sure to protect any environment variable containing secrets on your CI service.

Configuring push to Github¶

In order to push to Github and post the changelog to Github the environment variable GH_TOKEN has to be set. It needs access to the public_repo scope for public repositories and repo for private repositories.

Guides¶

Publish with cronjobs¶

This is for you if for some reason you cannot publish from your CI or you would like releases to drop at a certain interval. Before you start, answer this: Are you sure you do not want a CI to release for you? (high version numbers are not a bad thing).

The guide below is for setting up scheduled publishing on a server. It requires that the user that runs the cronjob has push access to the repository and upload access to an artifact repository.

Create a virtualenv:

virtualenv semantic_release -p `which python3`

Install python-semantic-release:
```
pip install python-semantic-release
```

3. Clone the repositories you want to have scheduled publishing. 3. Put the following in publish:

VENV=semantic_release/bin

$VENV/pip install -U pip python-semantic-release > /dev/null

publish() {
  cd $1
  git stash -u # ensures that there is no untracked files in the directory
  git fetch && git reset --hard origin/master
  $VENV/semantic-release publish
  cd ..
}

publish <package1>
publish <package2>

Add cronjob:

/bin/bash -c "cd <path> && source semantic_release/bin/activate && ./publish 2>&1 >> releases.log"