Switch from Circle to GHA.

.circleci/config.yml

@@ -1,37 +0,0 @@
-version: 2.1
-workflows:
-  main:
-    jobs:
-      - build
-      - release:
-          # Only run this job on git tag pushes
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              only: /v[0-9]+(\.[0-9]+)*(-.*)*/
-jobs:
-  build:
-    docker:
-      - image: cimg/base:2021.04
-    steps:
-      - checkout
-      - run:
-          name: Test
-          command: |
-            . ./bin/activate-hermit
-            go test -v ./...
-      - run:
-          name: Lint
-          command: |
-            . ./bin/activate-hermit
-            go build ./...
-            golangci-lint run
-  release:
-    docker:
-      - image: cimg/base:2021.04
-    steps:
-      - checkout
-      - run: |
-          . ./bin/activate-hermit
-          curl -sL https://git.io/goreleaser | bash

.github/workflows/ci.yml

@@ -0,0 +1,27 @@
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+name: CI
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Init Hermit
+        run: ./bin/hermit env -r >> $GITHUB_ENV
+      - name: Test
+        run: go test ./...
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Init Hermit
+        run: ./bin/hermit env -r >> $GITHUB_ENV
+      - name: golangci-lint
+        run: golangci-lint run