Arcanist Owners

This is an Arcanist extension that displays file ownership information. It is implemented as an arc owners command:

owners [options] [path ...]
    Supports: git, hg
    Display ownership information for a list of files.

    Without paths, the files changed in your local working copy will
    be used.

    --output format
        With 'json', show owners in machine-readable JSON format.

$ arc owners README.md
README.md
  [strong] Arcanist Extensions

This is similar to the built-in arc cover command, but instead of inferring likely owners based on "blame" statistics, arc owners uses the ownership definitions specified in Phabricator's Owners application.

It's possible that arc cover could evolve to the point where arc owners becomes redundant. T2443 tracks progress in that direction.

Installation

In short, you'll need to add this repository to your local machine and tell Arcanist to load the extension. You either can do this globally or on a per-project basis.

Global Installation

Arcanist can load modules from an absolute path, but because it also searches for modules one level up from itself on the filesystem, it's convenient to clone this repository at the same level as arcanist and libphutil.

$ git clone https://github.com/pinterest/arcanist-owners.git
$ ls
arcanist
arcanist-owners
libphutil

Then, tell Arcanist to load the module by editing ~/.arcconfig (or /etc/arcconfig):

{
  "load": ["arcanist-owners"]
}

Project Installation

You can also load arcanist-owners on a per-project basis. In that case, using a git submodule is probably the most convenient approach.

$ git submodule add https://github.com/pinterest/arcanist-owners.git .arcanist-owners
$ git submodule update --init

Then, enable the module in your project-level .arcconfig file:

{
  "load": [".arcanist-owners"]
}

Configuration

These features can be optionally enabled with configuration values.

Slack Channel

If you have Slack channels associated with owners via a custom field, arc owners will display the Slack channel next to each owner package name where available.

Enable this feature by specifying the following configuration values in .arcconfig:

{
  "slack.uri" : "https://<your-workspace>.slack.com/",
  "owners.slack_field" : "custom.Pinterest:owners-slack-channel"
}

The custom field specified by owners.slack_field is expected to exist on Owners, and to be a text field containing only the Slack channel name.