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opam archive for Coq

All opam repositories for Coq packages live here. Packages are organized according to the layout:

  • released: packages for officially released versions of Coq libraries and Coq extensions.

  • core-dev: packages for development versions of Coq.

  • extra-dev: packages for development versions of Coq libraries and Coq extensions.

We welcome pull requests to the released repository adding any Coq-related package that is compatible with a released version of Coq. Besides libraries of general interest, this also includes paper artifacts and other specialized formalizations that are not necessarily expected to be immediately reusable by others.

Usage

To activate the repositories:

  • released (recommended default):

    opam repo add coq-released https://coq.inria.fr/opam/released
    
  • core-dev:

    opam repo add coq-core-dev https://coq.inria.fr/opam/core-dev
    
  • extra-dev:

    opam repo add coq-extra-dev https://coq.inria.fr/opam/extra-dev
    

Adding packages

See the documentation for how to add a package. You can also look at existing pull requests to see how others are adding packages.

Coq Platform

The released opam archive is a key component of the Coq Platform, a distribution of Coq together with a curated set of libraries and plugins. After installing the Platform using scripts (as opposed to via a binary installer), additional packages in the released opam archive can be installed manually without the need for repository activation.

Website and opam metadata

The scripts/archive2web.ml program generates the JSON file coq-packages.json by looking at the opam files.

In particular, it uses the tags field of an opam file as follows:

  1. strings beginning with keyword: are considered as keywords
  2. strings beginning with category: are considered as categories
  3. a string beginning with logpath: is considered the Coq logical path prefix
  4. a string beginning with date: is the date the software was last updated (not the package definition)

Example:

tags: [
  "keyword:cool"
  "keyword:stuff"
  "category:Miscellaneous/Coq Use Examples"
  "logpath:MyPrefix"
  "date:1992-12-22"
]

The homepage:, author:, maintainer:, and doc: fields are also used to generate the package entry.

The JSON file is generated during continuous integration and copied to the website. JavaScript code on the website then loads it to dynamically generate the content of the website on the client side.

See also CEP3 and the deployed website.

Continuous integration

Incoming pull requests are tested on GitLab CI. @coqbot pushes any opened or synchonized pull request to a branch named pr-<number> on GitLab. It will trigger a CI build. If the CI build runs for too long and times out, any member of the Coq organization of GitLab can start it again using the "Run Pipeline" green button at https://gitlab.com/coq/opam-coq-archive/pipelines. This will then build only on runners without pre-set timeouts (the Coq Pyrolyse server). It may still time out if the build takes longer than the GitLab project's timeout setting (24 hours). To skip some packages the first PR message can contain a line such as ci-skip: p1.v1 p2.v2 where p1 and p2 are package names, and v1 and v2 are versions.

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