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Update for Dune-Coq 0.8 and Coq 8.17 #7

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48 changes: 0 additions & 48 deletions .github/workflows/ci.yml

This file was deleted.

30 changes: 30 additions & 0 deletions .github/workflows/docker-action.yml
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
name: Docker CI

on:
push:
branches:
- 'v8.17+0.8'
pull_request:
branches:
- '**'

jobs:
build:
# the OS must be GNU/Linux to be able to use the docker-coq-action
runs-on: ubuntu-latest
strategy:
matrix:
image:
- 'coqorg/coq:dev-ocaml-4.14-flambda'
- 'coqorg/coq:8.17.1-ocaml-4.09.1-flambda'
fail-fast: false
steps:
- uses: actions/checkout@v3
- uses: coq-community/docker-coq-action@v1
with:
opam_file: 'coq-my-plugin.opam'
custom_image: ${{ matrix.image }}

# See also:
# https://github.com/coq-community/docker-coq-action#readme
# https://github.com/erikmd/docker-coq-github-action-demo
4 changes: 0 additions & 4 deletions CHANGES

This file was deleted.

71 changes: 38 additions & 33 deletions README.md
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@@ -1,55 +1,60 @@
# Template for Coq Plugins using Dune
# Coq Plugin Template using Dune

This repository contains a template for writing a plugin for the
[![Docker CI][docker-action-shield]][docker-action-link]

[docker-action-shield]: https://github.com/coq-community/coq-plugin-template/workflows/Docker%20CI/badge.svg?branch=v8.17
[docker-action-link]: https://github.com/coq-community/coq-plugin-template/actions?query=workflow:"Docker%20CI"

Template repository writing a plugin in [OCaml](https://ocaml.org) for the
[Coq](https://coq.inria.fr) proof assistant using the [Dune](https://dune.build)
build system. It showcases a few advanced features such as linking to C code or
to external libraries.

The current version is tested (and requires):

- Dune 2.9
- Coq 8.16

Minimal historical requirements are Coq 8.9 and Dune 1.10, but they
are not supported anymore. See template history / branches for
changes at your own risk.
## Meta

See the [Dune documentation](https://dune.readthedocs.io/en/latest/) for more help.
- License: [Unlicense](LICENSE) (change to your license of choice)
- Compatible Coq versions: 8.17.1 or later
- Additional dependencies:
- [Dune](https://dune.build) 3.8.2 or later
- Coq namespace: `MyPlugin`

## See also

The [official tutorial](https://github.com/coq/coq/tree/master/doc/plugin_tutorial)
for writing Coq plugins in the Coq repository, which already includes `dune` files
for OCaml parts.

## How to build
## Building instructions

To install dependencies via [opam](https://opam.ocaml.org/doc/Install.html):
```shell
$ dune build
$ opam install dune.3.8.2 coq.8.17.1
```
and the rest of the regular Dune commands. To test your library, you can use

To build the plugin when all dependencies are installed:
```shell
$ dune exec -- coqtop -R _build/default/theories MyPlugin
$ dune build
```

or starting with Dune 3.2
The plugin can be tested manually:
```shell
$ dune coq top theories/Test.v
```

## Releasing OPAM packages
Welcome to Coq 8.17.1

You can use
[`dune-release`](https://github.com/ocamllabs/dune-release) to
automatically release OPAM packages.
Coq < Require Import MyPlugin.
[Loading ML file my_plugin.cmxs (using legacy method) ... done]

For that, you need to update the included `.opam` file, and configure
your Github tokens as described in the documentation of `dune-release`.
Coq < CallC.
Toplevel input, characters 0-6:
> CallC.
> ^^^^^^
Warning: 546
```

## Linking with external libraries
See also the [Dune documentation](https://dune.readthedocs.io/en/latest/) for more help,
and the [official tutorial](https://github.com/coq/coq/tree/master/doc/plugin_tutorial)
for writing Coq plugins in the Coq repository which already includes `dune` files
for the OCaml parts.

Starting with Coq 8.16, Coq will load dependencies of your
plugin. This requires that your plugin is named as a findlib package.
## Releasing opam packages

See [Coq documentation](https://coq.github.io/doc/master/refman/proof-engine/vernacular-commands.html#coq:cmd.Declare-ML-Module) for more information.
You can use [`dune-release`](https://github.com/tarides/dune-release) to
automatically release opam packages.

For that, you need to update the included `.opam` file, and configure
your Github tokens as described in the documentation of `dune-release`.
17 changes: 9 additions & 8 deletions coq-my-plugin.opam
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@@ -1,11 +1,12 @@
opam-version: "2.0"
maintainer: "[email protected]"
version: "dev"

homepage: "https://github.com/your-github/my-plugin"
dev-repo: "git+https://github.com/your-github/my-plugin.git"
bug-reports: "https://github.com/your-github/my-plugin/issues"
doc: "https://your-github.github.io/my-plugin"
license: "MIT"
homepage: "https://github.com/coq-community/my-plugin"
dev-repo: "git+https://github.com/coq-community/my-plugin.git"
bug-reports: "https://github.com/coq-community/my-plugin/issues"
doc: "https://coq-community.github.io/my-plugin"
license: "SPDX-identifier-for-your-license"

synopsis: "One line description of your plugin"
description: """
Expand All @@ -14,9 +15,9 @@ cover multiple lines. Including punctuation."""

build: ["dune" "build" "-p" name "-j" jobs]
depends: [
"ocaml" {>= "4.07.1"}
"dune" {>= "2.5"}
"coq" {>= "8.14" & < "8.15"}
"ocaml" {>= "4.09.0"}
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Maybe better to use a more recent OCaml version? I suggest 4.14.1

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But 4.14.1 isn't required, right? I thought we keep this the lower bound.

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No it is not. That's a good question about what versions we put here. In general it will depend on the OCaml features the plugin writer uses.

Note also that 8.17.0 is not either a lower bound here, as the template works fine with 8.16.x

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As dicussed in Zulip, generally a template has a range of versions that it is suitable for, so we may want just to document the ranges users can do here.

  • In the case of Coq, for this version of the template >= 8.16 , tho it is trivial to adapt for 8.14, 8.15
  • In the case of OCaml, the bound is basically any OCaml in the 4.x series

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This PR doesn't work on Coq 8.16 since I removed -rectypes.

"dune" {>= "3.8.2"}
"coq" {>= "8.17.1"}
]

tags: [
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4 changes: 2 additions & 2 deletions dune-project
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@@ -1,3 +1,3 @@
(lang dune 2.9)
(using coq 0.3)
(lang dune 3.8)
(using coq 0.8)
(name my-plugin)
12 changes: 4 additions & 8 deletions src/dune
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Expand Up @@ -10,18 +10,14 @@

(synopsis "My Coq plugin") ; Synopsis, used in META generation.

(flags :standard -rectypes -w -27) ; Coq requires the `-rectypes`
; flag; CoqPP generated code
; requires to disable warning 27
; often.
(flags :standard -w -27) ; CoqPP generated code requires to
; disable warning 27 often.
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(foreign_stubs ; we link our plugin with a C
(foreign_stubs ; We link our plugin with a C
(language c) ; library! Optional, of course.
(names ce_get))

(libraries ; OCaml Libraries we want to link
; with, your choice here.

(libraries ; OCaml libraries we want to link with
coq-core.vernac ; Needed for vernac extend.
coq-core.plugins.ltac ; Needed for tactic extend.
)
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2 changes: 1 addition & 1 deletion theories/dune
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@
(package coq-my-plugin) ; Adding this line will make your
; library installable in the opam package

(libraries coq-my-plugin.plugin)) ; Here you should declare all
(plugins coq-my-plugin.plugin)) ; Here you should declare all
; OCaml plugin dependencies
; for your Coq files.

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