Migrate to Nix & GH Actions (#95)

Author: anmonteiro

.circleci/config.yml

@@ -0,0 +1,26 @@
+name: "Build"
+on:
+  pull_request:
+  push:
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ocamlVersion: [406, 407, 408, 409]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Checkout submodules
+      shell: bash
+      run: |
+        # https://github.com/actions/checkout#checkout-submodules
+        auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+        git submodule sync --recursive
+        git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+    - uses: cachix/install-nix-action@v6
+    - uses: cachix/cachix-action@v3
+      with:
+        name: anmonteiro
+        file: nix/ci/${{ matrix.ocamlVersion }}.nix
+        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
+

.github/workflows/test.yml

@@ -1,6 +1,6 @@
 [submodule "hpack/test/hpack-test-case"]
 	path = hpack/test/hpack-test-case
-	url = git@github.com:http2jp/hpack-test-case.git
+	url = https://github.com/http2jp/hpack-test-case.git
 [submodule "lib_test/http2-frame-test-case"]
 	path = lib_test/http2-frame-test-case
-	url = git@github.com:http2jp/http2-frame-test-case.git
+	url = https://github.com/http2jp/http2-frame-test-case.git