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Description:

prpublisher 0.0.2

Overview
This is a CLI tool that can list open pull requests and post them somewhere,
mainly Slack. This is useful to help a team stay on top of pull request
reviews.
It is configurable, supports multiple publishers, and makes it easy to write
your own publishers.
pip install pr-publisher

note: This is NOT a bot, it is NOT a Slack plugin, and it does NOT support
updating pull requests in any way from the command line.
Please report any issues or feature requests on Github
Usage
This installs a script called pr-publisher,
pr-publisher --help

Arguments are supplied with CLI options, or environment variables. See the
--help output or below for available options.
Basic usage
The tool needs a Github personal access token with repo and read:org permissions.
[x] repo
[ ] admin:org
[ ] write:org
[x] read:org

(note: It will try to read branch protection settings to determine the required
checks for the repository. I forget if an additional permission is required
for this)
Provide the token either by CLI option, or environment variable.

Flag
Env Var
Example

--github-org
GITHUB_ORG
pglbutt

--github-token
GITHUB_TOKEN

--github-url
GITHUB_URL
https://github.<company>.com

--include-wip

--users

pglass,hotpie

--approvals-needed

2

--show-labels

Currently, the Github organization is required. Open pull requests will be
discovered from all repositories in the org. Optionally, that list can be
filtered down to those owned by specific Github usernames.
Github enterprise is supported. Just provide your Github enterprise url with
the --github-url (however, I have not tested 2fa).
### Using flags
pr-publisher --github-org my-org --github-token <token> table slack

### Using environment variables
export GITHUB_TOKEN=<token>
export GITHUB_ORG=my-org
pr-publisher --users pglass,hotpie table slack

By default, PRs with titles that contain "wip" (case-insensitive) are ignored.
Use the --include-wip flag if you wish to include those.
Publishers
The script accepts a list of publisher names. Currently there are two publishers

table: prints the list of pull requests in a table to stdout
slack: posts the list of pull requests to slack

Each publisher specified will be run and will publish the list of open pull
requests.
### Run the "table" publisher
pr-publisher <options> table

### Run both the "table" and "slack" publishers
pr-publisher <options> table slack

Slack publisher
The slack publisher requires a slack url and token. Currently, the Slack
Jenkins CI integration url is the only tested and known working webhook url.
Below is a full list of options,

Flag
Env Var
Example

--slack-token
SLACK_TOKEN

--slack-url
SLACK_URL
https://<team>.slack.com/services/hooks/jenkins-ci

--slack-channel
SLACK_CHANNEL
#my-team

--slack-approved-emoji
SLACK_APPROVED_EMOJI
:+1:

--slack-changes-requested-emoji
SLACK_CHANGES_REQUESTED_EMOJI
:-1:

--slack-status-check-success-emoji
SLACK_STATUS_CHECK_SUCCESS_EMOJI
:white_check_mark:

--slack-status-check-pending-emoji
SLACK_STATUS_CHECK_PENDING_EMOJI
:grey_question:

--slack-status-check-failed-emoji
SLACK_STATUS_CHECK_FAILED_EMOJI
:x:

The slack channel is optional. If not supplied, the slack message is sent to
the channel associated with the token.
All emojis default to the empty string and can be plain text strings if you like
The "approved" and "changes requested" emojis are used to display pull request
approvals. If your team requires a minimum number of approvals for a pull request,
you should supply the --approvals-needed flag to display how many more approvals
are needed.

Custom Publishers
There are two basic steps for a writing your own custom publisher,

Subclass BasePublisher when creating your publisher class
Register your publisher with Main

Here's a basic example. You create your
publisher class, add any cli args you like, and then implement the publish
method.
"""Example of a custom publisher"""
from pr_publisher.publishers.base import BasePublisher
from pr_publisher.main import Main

class CustomPublisher(BasePublisher):

@classmethod
def add_cli_arguments(cls, parser):
# All publisher cli args should be optional. (A user may only care to
# run a single publisher, and doesn't want to supply values for the
# rest of the publishers)
parser.add_argument("--some-chat-url", default=None)

def __init__(self, args):
super(CustomPublisher, self).__init__(args)

if not args.some_chat_url:
raise Exception("--some-chat-url is required")

def publish(self, publish_entries):
for entry in publish_entries:
# Just printing, for the sake of this example.
# see pr_publisher.entry.PublishEntry for all available fields.
print("{}\n {}".format(entry.pr.title, entry.pr.html_url))

def main():
# Register the publisher before we run the program
Main.register_publisher("some-chat", CustomPublisher)

# Run the program
Main().run()

if __name__ == "__main__":
main()

You now have your publisher hooked up. You should see the new CLI arguments
show up for the some-chat publisher, as well as CLI args for all other
registered publishers (but this is truncated for the example).
$ python custom_publisher.py -h
...

positional arguments:
{table,slack,some-chat}
List of publishers to run

optional arguments:
-h, --help show this help message and exit
...
--some-chat-url SOME_CHAT_URL

To run your publisher, specify the publisher name (some-chat on the command
line.
$ python custom_publisher.py ... --some-chat-url 'http://chat.example.com' --users pglass some-chat
Logging in...
Collecting info...
Publishing with CustomPublisher
Fixing some bug
https://github.com/pglass/pr-publisher/pull/2
Fixing another bug
https://github.com/pglass/pr-publisher/pull/5
Adding some feature
https://github.com/pglass/pr-publisher/pull/6