Plasma Bugtracking

Copyright (C) 2019 Plasma Team
Distributed under CC BY-SA 4.0

Updated: March 2019
Source: on github

We use the github bugtracker, and while users/new contributors and such should be able to submit a bug without too much process. We need a little more process to decide which bugs are important and what we should be working on when.

These guidelines might change a bit as we settle in and figure out what works.



The Plasma Roadmap is published on the website and gives a high-level overview of what we want to work on. It divides our progress into several milestones, each milestone is made of several features.

Releases & Versioning

Plasma is currently not-quite usable (I must remember to update this doc when it is!) and so there are currently no version numbers or release schedule. Once it is I think it’d be fairly reasonable to manage two releases per year using something like a train model - because it’s more important to release something rather than have a release wait potentially indefinitely for a particular feature. It’s my guess that twice yearly is not too fast that each release will have a reasonable number of new features, but not too slow that anyone feels they’re waiting too long to get new features.

Regarding bugs this means which version a feature lands in is only meaningful with regard to relative priorities, and bugs/features don’t need to be tagged with a version.

That said, there will probably be meaningful versions such as "1.0" where we declare some API/language/library stability.


Github’s bugtracker allows us to label issues. We already have several kinds of labels


bug, enhancement, maintenance, optimisation


build system, compiler, runtime, docs etc


C++, Mercury, Type system, etc


help-wanted, good-first-bug, no-domain-knowledge


new, accepted, duplicate, invalid, wontfix, resolved



We will extend these and probably rename a few of them.

Github also supports a notion of milestones. I beleive these function like labels except that an issue may only belong to a single milestone. The Milestones view has nice progress bars too.

Github also supports project boards, I created a project board for the whole project but maybe they’re useful when at a narrower scope.

We may not always use github, TODO: find a way to download all this data from github.

Milestones & tasks

the roadmap divides our work into milestones and tasks. Each roadmap task shall be a github milestone. For example, we currently have:

  • Closures & functional features

  • Modules

  • FFI

  • Standard library

  • Ergonomics 2019

  • Other Bugs 2019

  • Later

The first four are features from the roadmap. Ergonomics 2019 is something else we care about as we’re approaching the end of the 2nd roadmap milestone. We want to make it possible for people to get started with Plasma and not hit too many problems. They will hit problems, but let’s address the worst of them. Other Bugs 2019 is any other bug (not a feature / enhancement). We may wish to close and open new milestones with other years/dates on them to better measure our progress with these things that could be ongoing. Later is any enhancement (or maybe bug) that is projected to be much further in the future.

Triaging & labelling

Triaging is a process by someone looks at the issue and assigns various attributes to help with sorting/finding that issue later. It usually decides the issue’s priority (in our case, milestone). Triaging is the responsibility of project maintainers, users do not need to worry about this.

Each issue may have have one or more labels for skills, and usually one for component but this may be more if it’s a cross-cutting issue or fewer if it covers the project as a whole.

Some big features may be cross cutting and have their own label (because maybe they don’t have a milestone yet or are meta-bugs for that feature). These labels begin with "feature" eg "feature: wasm".

Each issue should have exactly one type or be a project bug (bug, enhancement, maintainance task or optimisation).

Each issue may belong in a milestone and if a milestone has a project board it should be on that board.

Each issue should have a status, it should begin as "new".

Untriaged bugs can be found with this search.

To summarise, to triage a bug assign:

  • The "status: new"

  • One type label,

  • probably one component or feature label, maybe more,

  • Any number of skill labels,

  • meta labels as appropriate.

  • for features: Assign a milestone (which corresponds to the roadmap) or assign Later if this should be completed much later (eg after "1.0").

  • for bugs: Assign the Other Bugs milestone.