From 05573a8d64791e644a1722a03f148c1de5499dbf Mon Sep 17 00:00:00 2001
From: Simon Cruanes <simon.cruanes.2007@m4x.org>
Date: Mon, 6 Apr 2026 18:14:45 -0400
Subject: [PATCH] use docker for CI

---
 .github/workflows/gh-pages.yml | 11 +++-------
 .github/workflows/main.yml     | 40 +++++++++++-----------------------
 2 files changed, 16 insertions(+), 35 deletions(-)

diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index f022b4ca..9c659259 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -9,15 +9,10 @@ jobs:
   deploy:
     name: Deploy doc
     runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@main
+    container: ghcr.io/c-cube/c-cube-commmon/ci-doc-5.3:latest
 
-      - name: Use OCaml
-        uses: ocaml/setup-ocaml@v3
-        with:
-          ocaml-compiler: '5.3'
-          dune-cache: true
-          allow-prerelease-opam: true
+    steps:
+      - uses: actions/checkout@v6
 
       # temporary until it's in a release
       - run: opam pin picos 0.6.0 -y -n
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 541b7fab..bfb647ad 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,21 +13,17 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        os:
-            - ubuntu-latest
-        ocaml-compiler:
-            - '5.0'
-            - '5.3'
+        include:
+          - ocaml-version: '5.0'
+            container: ghcr.io/c-cube/c-cube-commmon/ci-5.0:latest
+          - ocaml-version: '5.3'
+            container: ghcr.io/c-cube/c-cube-commmon/ci-doc-5.3:latest
+
+    runs-on: ubuntu-latest
+    container: ${{ matrix.container }}
 
-    runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@main
-      - name: Use OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v3
-        with:
-          ocaml-compiler: ${{ matrix.ocaml-compiler }}
-          dune-cache: true
-          allow-prerelease-opam: true
+      - uses: actions/checkout@v6
 
       - run: opam pin picos 0.6.0 -y -n
 
@@ -70,20 +66,10 @@ jobs:
 
   format:
     name: format
-    strategy:
-      matrix:
-        ocaml-compiler:
-            - '5.3'
-    runs-on: 'ubuntu-latest'
-    steps:
-      - uses: actions/checkout@main
-      - name: Use OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v3
-        with:
-          ocaml-compiler: ${{ matrix.ocaml-compiler }}
-          dune-cache: true
-          allow-prerelease-opam: true
+    runs-on: ubuntu-latest
+    container: ghcr.io/c-cube/c-cube-commmon/ci-doc-5.3:latest
 
+    steps:
+      - uses: actions/checkout@v6
       - run: opam install ocamlformat.0.27.0
       - run: opam exec -- make format-check
-