DEPRECATED

We would like for you to start using the new github-pr-resource that is based on Github's GraphQL resources. Using GraphQL fixes a lot of issues this repo has.

For history or context regarding this change, please see this issue.

Github Pull Request Resource

Tracks Github pull requests made to a particular Github repo. In the spirit of Travis CI, a status of pending, success, or failure will be set on the pull request, which must be explicitly defined in your pipeline.

NOTE: Pull requests are implemented differently between the git repo providers. This resource only support GITHUB.

Deploying to Concourse

You can use the docker image by defining the resource type in your pipeline YAML.

For example:

resource_types:
- name: pull-request
  type: docker-image
  source:
    repository: jtarchie/pr

Source Configuration

repo: Required. The repo name on github. Example: jtarchie/pullrequest-resource
access_token: Required. An access token with repo:status access is required for public repos. An access token with repo access is required for private repos.
uri: Optional. The URI to the github repo. By default, it assumes https://github.com/`repo`.
base: Optional. When set, will only pull PRs made against a specific branch. The default behaviour is any branch.
base_url: Optional The base URL for the Concourse deployment, used for linking to builds. On newer versions of Concourse ( >= v0.71.0) , the resource will automatically sets the URL.

This supports the build environment variables provided by concourse. For example, context: $BUILD_JOB_NAME will set the context to the job name.

private_key: Optional. Private key to use when pulling/pushing. Example:

private_key: |
  -----BEGIN RSA PRIVATE KEY-----
  MIIEowIBAAKCAQEAtCS10/f7W7lkQaSgD/mVeaSOvSF9ql4hf/zfMwfVGgHWjj+W
  <Lots more text>
  DWiJL+OFeg9kawcUL6hQ8JeXPhlImG6RTUffma9+iGQyyBMCGd1l
  -----END RSA PRIVATE KEY-----

api_endpoint: Optional. If the repository is located on a GitHub Enterprise instance you need to specify the base api endpoint (e.g. "https://<hostname>/api/v3/").
disable_forks: Optional, default false. If set to true, it will filter out pull requests that were created via users that forked from your repo.
only_mergeable: Optional, default false. If set to true, it will filter out pull requests that are not mergeable. A pull request is mergeable if it has no merge conflicts.
require_review_approval: Optional, default false. If set to true, it will filter out pull requests that do not have an Approved review.
authorship_restriction: Optional, default false. If set to true, will only return PRs created by someone who is a collaborator, repo owner, or organization member.
label: Optional. If set to a string it will only return pull requests that have been marked with that specific label. It is case insensitive.
username: Optional. Username for HTTP(S) auth when pulling/pushing. This is needed when only HTTP/HTTPS protocol for git is available (which does not support private key auth) and auth is required.
password: Optional. Password for HTTP(S) auth when pulling/pushing.
paths: Optional. If specified (as a list of glob patterns), only changes to the specified files will yield new versions from check.
ignore_paths: Optional. The inverse of paths; changes to the specified files are ignored.
ci_skip: Optional. Filters out PRs that have [ci skip] message. Default is false.
skip_ssl_verification: Optional. Skips git ssl verification by exporting GIT_SSL_NO_VERIFY=true and applying it to the Github API client.
git_config: Optional. If specified as (list of pairs name and value) it will configure git global options, setting each name with each value.

This can be useful to set options like credential.helper or similar.

See the git-config(1) manual page for more information and documentation of existing git options.

Behavior

`check`: Check for new pull requests

Concourse resources always iterate over the latest version. This maps well to semver and git, but not with pull requests. This filters all open PRs sorted by most recently updated.

`in`: Clone the repository, at the given pull request ref

Clones the repository to the destination, and locks it down to a given ref. It is important to specify version: every, otherwise you will only ever get the latest PR.

There is git config information set on the repo about the PR, which can be consumed within your tasks.

For example:

git config --get pullrequest.url        # returns the URL to the pull request
git config --get pullrequest.branch     # returns the branch name used for the pull request
git config --get pullrequest.id         # returns the ID number of the PR
git config --get pullrequest.body       # returns the PR body
git config --get pullrequest.basebranch # returns the base branch used for the pull request
git config --get pullrequest.basesha    # returns the commit of the base branch used for the pull request
git config --get pullrequest.userlogin  # returns the github user login for the pull request author

Additional files populated

.git/id: the pull request id
.git/url: the URL for the pull request
.git/branch: the branch associated with the pull request
.git/base_branch: the base branch of the pull request
.git/base_sha: the commit of the base branch of the pull request
.git/userlogin: the user login of the pull request author
.git/head_sha: the latest commit hash of the branch associated with the pull request
.git/body: the body of the pull request.

Parameters

git.depth: Optional. If a positive integer is given, shallow clone the repository using the --depth option.
git.submodules: Optional, default all. If none, submodules will not be fetched. If specified as a list of paths, only the given paths will be fetched. If all, all submodules are fetched.
git.disable_lfs: Optional. If true, will not fetch Git LFS files.
fetch_merge: Optional, default false. If set to true, it will fetch what the result of PR would be otherwise it will fetch the origin branch.

`out`: Update the status of a pull request

Set the status message for concourse-ci context on specified pull request.

Parameters

path: Required. The path of the repository to reference the pull request.
status: Required. The status of success, failure, error, or pending.
- on_success and on_failure triggers may be useful for you when you wanted to reflect build result to the PR (see the example below).
context: Optional. The context on the specified pull request (defaults to status). Any context will be prepended with concourse-ci, so a context of unit-tests will appear as concourse-ci/unit-tests on Github.

This supports the build environment variables provided by concourse. For example, context: $BUILD_JOB_NAME will set the context to the job name.
comment: Optional. The file path of the comment message. Comment owner is same with the owner of access_token.
merge.method: Optional. Use this to merge the PR into the target branch of the PR. There are three available merge methods -- merge, squash, or rebase. Please this doc for more information.
merge.commit_msg: Optional. Used with merge to set the commit message for the merge. Specify a file path to the merge commit message.
label: Optional. A label to add to the pull request.

Example pipeline

Please see this repo's pipeline for a perfect example.

There's also an example by @starkandwayne.

Running the tests

Requires ruby to be installed.

gem install bundler
bundle install
bundle exec rspec

Or with the Dockerfile, which runs the tests to see if it can successfully build:

docker build .

License

jtarchie/github-pullrequest-resource

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