From 276e1afd1f9e36a845c305e88509d447c7b2e4be Mon Sep 17 00:00:00 2001
From: Tom Repetti <trepetti@cs.columbia.edu>
Date: Sat, 1 May 2021 16:17:15 -0400
Subject: [PATCH] Drop OCaml 4.04 for ppxlib. Migrate from Travis to GitHub
 Actions.

---
 .github/workflows/workflow.yml | 45 ++++++++++++++++++++++++++++++++++
 README.md                      |  2 ++
 dune-workspace.dev             | 14 +++++------
 ppx_deriving_cmdliner.opam     |  2 +-
 4 files changed, 55 insertions(+), 8 deletions(-)
 create mode 100644 .github/workflows/workflow.yml

diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
new file mode 100644
index 0000000..18182a1
--- /dev/null
+++ b/.github/workflows/workflow.yml
@@ -0,0 +1,45 @@
+name: Main workflow
+
+on:
+  - pull_request
+  - push
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - macos-latest
+          - ubuntu-latest
+          - windows-latest
+        ocaml-version:
+          - 4.12.0
+          - 4.11.2
+          - 4.10.2
+          - 4.09.1
+          - 4.08.1
+          - 4.07.1
+          - 4.06.1
+          - 4.05.0
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Use OCaml ${{ matrix.ocaml-version }}
+        uses: avsm/setup-ocaml@v1
+        with:
+          ocaml-version: ${{ matrix.ocaml-version }}
+
+      - run: opam pin add ppx_deriving_cmdliner.dev . --no-action
+
+      - run: opam depext ppx_deriving_cmdliner --yes --with-test
+
+      - run: opam install . --deps-only --with-test
+
+      - run: opam exec -- dune build
+
+      - run: opam exec -- dune runtest
diff --git a/README.md b/README.md
index d66c3ba..50a0177 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ It is also a [ppx_deriving](https://github.com/whitequark/ppx_deriving) plugin
 that generates a [Cmdliner](https://github.com/dbuenzli/cmdliner) `Term` for a
 given type.
 
+![example workflow](https://github.com/hammerlab/ppx_deriving_cmdliner/actions/workflows/workflow.yml/badge.svg)
+
 ## Example
 
 
diff --git a/dune-workspace.dev b/dune-workspace.dev
index 635c06f..653bd95 100644
--- a/dune-workspace.dev
+++ b/dune-workspace.dev
@@ -1,10 +1,10 @@
 (lang dune 1.0)
 ;; This file is used by `make all-supported-ocaml-versions`
-(context (opam (switch 4.04.0)))
+(context (opam (switch 4.12.0)))
+(context (opam (switch 4.11.2)))
+(context (opam (switch 4.10.2)))
+(context (opam (switch 4.09.1)))
+(context (opam (switch 4.08.1)))
+(context (opam (switch 4.07.1)))
+(context (opam (switch 4.06.1)))
 (context (opam (switch 4.05.0)))
-(context (opam (switch 4.06.0)))
-(context (opam (switch 4.07.0)))
-(context (opam (switch 4.08.0)))
-(context (opam (switch 4.09.0)))
-(context (opam (switch 4.10.0)))
-(context (opam (switch 4.11.0)))
diff --git a/ppx_deriving_cmdliner.opam b/ppx_deriving_cmdliner.opam
index 4613cf8..7d229e8 100644
--- a/ppx_deriving_cmdliner.opam
+++ b/ppx_deriving_cmdliner.opam
@@ -22,7 +22,7 @@ run-test: [
   ["dune" "runtest" "-p" name "-j" jobs]
 ]
 depends: [
-  "ocaml"        {>= "4.03"}
+  "ocaml"        {>= "4.05"}
   "cmdliner"     {>= "1.0.0"}
   "result"
   "ppx_deriving" {>= "5.0"}