WIP: GH actions

.github/workflows/ci.yml

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+# Inspired by https://github.com/rust-analyzer/rust-analyzer/blob/master/.github/workflows/ci.yaml
+# but tweaked in several ways.  If you make changes here, consider doing so across other
+# repositories in e.g. ostreedev etc.
+name: CI
+
+permissions:
+  actions: read
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install deps
+        run: sudo ./ci/installdeps.sh
+      - name: Build
+        run: make -C /usr/src/linux modules M=$PWD
+      - name: Upload binary
+        uses: actions/upload-artifact@v2
+        with:
+          path: ostreefs.ko
+          if-no-files-found: error 
+  integration:
+    name: "Integration"
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download
+        uses: actions/download-artifact@v3
+        with:
+          name: ostreefs.ko
+      - name: Run tests
+        run: sudo ci/tests.sh

ci/installdeps.sh

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+#!/bin/bash
+set -xeuo pipefail
+apt update -y
+apt install -y linux-source flex bison openssl{,-dev}
+cd /usr/src
+src=$(ls /usr/src/linux-source*.tar*)
+bn=$(basename ${src})
+d=${bn%.tar*}
+if test '!' -d linux; then
+    tar xf "${src}"
+    cd "${d}"
+    make olddefconfig
+    make modules_prepare
+    cd -
+    mv ${d} linux
+fi

ci/tests.sh

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+#!/bin/bash
+set -xeuo pipefail
+insmod ostreefs.ko