Add Github Actions workflow as CI (#1)

Adding CI to this project using Github Actions.

It will run:
- unit tests, go test in the root directory
- fuzz tests, go test in the fuzz/ directory
- integration tests, go test in the integration/ directory
- `golangci-lint run ./...` in all modules
- `go vet ./...` in all modules

We need to run these commands in all Go module directories because the
expansion pattern `./...` in the root module will not expand to the Go
files in the sub Go modules (fuzz and integration).

.github/workflows/golang.yaml

@@ -0,0 +1,94 @@
+name: Go
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  unit-tests:
+    name: unit tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.22.2'
+        cache-dependency-path: "**/*.sum"
+    - uses: actions/checkout@v4
+    - run: go mod verify
+    - run: go test ./...
+
+  fuzz-tests:
+    name: fuzz tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.22.2'
+        cache-dependency-path: "**/*.sum"
+    - uses: actions/checkout@v4
+    - run: go mod verify
+    - run: go mod download
+    - run: cd fuzz && go test ./...
+
+  integration-tests:
+    name: integration tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.22.2'
+        cache-dependency-path: "**/*.sum"
+    - uses: actions/checkout@v4
+    - run: go mod verify
+    - run: go mod download
+    - run: cd integration && go test ./...
+
+  go-vet:
+    name: go vet
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      checks: write
+    steps:
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.22.2'
+        cache-dependency-path: "**/*.sum"
+    - uses: actions/checkout@v4
+    - run: go vet ./...
+    - run: cd fuzz && go vet ./...
+    - run: cd integration && go vet ./...
+
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+      checks: write
+    steps:
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.22.2'
+        cache-dependency-path: "**/*.sum"
+    - uses: actions/checkout@v4
+    - uses: golangci/golangci-lint-action@v5
+      with:
+        version: 'v1.57.2'
+    - uses: golangci/golangci-lint-action@v5
+      with:
+        working-directory: 'fuzz'
+        version: 'v1.57.2'
+    - uses: golangci/golangci-lint-action@v5
+      with:
+        working-directory: 'integration'
+        version: 'v1.57.2'

examples/readme_test.go

@@ -6,7 +6,7 @@ import (
 	"github.com/poki/mongodb-filter-to-postgres/filter"
 )
 
-func ExampleNewConverter_README() {
+func ExampleNewConverter_readme() {
 	// Remeber to use `filter.WithArrayDriver(pg.Array)` when using github.com/lib/pq
 	converter := filter.NewConverter(filter.WithNestedJSONB("meta", "created_at", "updated_at"))
 

fuzz/go.mod

@@ -1,6 +1,6 @@
 module github.com/poki/mongodb-filter-to-postgres/fuzz
 
-go 1.21.0
+go 1.22.2
 
 replace github.com/poki/mongodb-filter-to-postgres v0.0.0 => ../
 

go.mod

@@ -1,3 +1,3 @@
 module github.com/poki/mongodb-filter-to-postgres
 
-go 1.21.0
+go 1.22.2

integration/go.mod

@@ -1,6 +1,6 @@
 module github.com/poki/mongodb-filter-to-postgres/fuzz
 
-go 1.21.0
+go 1.22.2
 
 replace github.com/poki/mongodb-filter-to-postgres v0.0.0 => ../