Workflow-PR bot
===============

Keeps ProjectGit PR in-sync with a PackageGit PR


Areas of Responsibility
-----------------------

* Detects a PackageGit PR creation against a package and creates a coresponsing PR against the ProjectGit
* When a PackageGit PR is updated, the corresponding PR against the ProjectGit is updated
* Stores reference to the PackageGit PR in the headers of the ProjectGit PR comments, for later reference
   * this allows ProjectGit PR to be merged to seperated later (via another tool, for example)
* Initiates all staging workflows via review requests


Target Usage
------------

Any project (devel, etc) that accepts PR


Config file
-----------
JSON
* _Workflows_: "pr" -- pr workflow enabled
* _Organization_: organization that holds all the packages
* _Branch_: branch updated in repo's
* _GitProjectName_: package in above org, or `org/package` for PrjGit
* _Reviewers_: accounts associated with mandatory reviews for PrjGit. Can trigger additional
               review requests for PrjGit or associated PkgGit repos. Only when all reviews are
               satisfied, will the PrjGit PR be merged. See Reviewers below.
* _ManualMergeOnly_: (true, false) only merge if "merge ok" comment/review by package or project maintainers or reviewers
* _ManualMergeProject_: (true, false) only merge if "merge ok" by project maintainers or reviewers

example:

    [
     {
        "Workflows": ["pr", "direct"],
        "Organization": "autogits",
        "GitProjectName": "HiddenPrj",
        "Branch": "hidden",
        "Reviewers": []
     },
     ...
    ]

Reviewers
---------

Reviews is a list of accounts that need to review package and/or project. They have specific syntax

    [~][*|-|+]username

General prefix of ~ indicates advisory reviewer. They will be requested, but ignored otherwise.

Other prefixes indicate project or package association of the reviewer:
* `*` indicates project *and* package
* `-` indicates project-only reviewer
* `+` indicates package-only reviewer

`+` is implied. For example

    `[foo, -bar, ~*moo]`

results in
* foo -> package reviews
* bar -> project reviews
* moo -> package and project reviews, but ignored


Maintainership
--------------

Maintainership information is defined per project. For reviews, package maintainers are coalesced
with project maintainers. A review by any of the maintainers is acceptable.

example:

    {
        "package1": [ "reviewer", "reviewer2"],
        "package2": [],

        // "project" maintainer
        "": ["reviewer3", "reviewer4"]
    }