Add github action to sync api docs to the user docs site

.github/CODEOWNERS

@@ -14,3 +14,5 @@
 # https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
 
 * @snyk/docs
+tools/api-docs-generator/* @snyk/api
+.github/workflows/* @snyk/api

.github/workflows/sync-api-docs.yml

@@ -0,0 +1,40 @@
+name: Synchronize API Docs
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 * * * 1-5' # Mon-Fri every hour
+  push:
+    branches: [chore/docs-action]
+jobs:
+  build:
+    name: synchronize-api-docs
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          cache-dependency-path: |
+            tools/api-docs-generator/go.sum
+      - name: generate
+        id: generate
+        working-directory: ./tools/api-docs-generator
+        run: |
+          make run | tee /tmp/run.log
+          result_code=${PIPESTATUS[0]}
+          echo 'MENU<<EOF' >> $GITHUB_OUTPUT
+          cat /tmp/run.log >> $GITHUB_OUTPUT
+          echo 'EOF' >> $GITHUB_OUTPUT
+          exit $result_code
+      - uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: "docs: synchronizing api spec with user-docs"
+          title: "Generate API docs from spec"
+          body: |
+            This PR was automatically generated by the API docs synchronization action. Please review the changes and merge if they look good.
+            ```
+            ${{ steps.generate.outputs.MENU }}
+            ```
+          branch: docs/automatic-api-docs-update
+          base: main

.github/workflows/test-generator.yml

@@ -0,0 +1,22 @@
+name: Test API Docs Generator
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - 'tools/api-docs-generator/**'
+      - '.github/workflows/test-generator.yml'
+
+jobs:
+  test:
+    name: test-api-docs-generator
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          cache-dependency-path: |
+            tools/api-docs-generator/go.sum
+      - name: test
+        working-directory: ./tools/api-docs-generator
+        run: make test

tools/api-docs-generator/.golangci.yml

@@ -0,0 +1,123 @@
+---
+run:
+  build-tags:
+    - integration
+  concurrency: 4
+  issues-exit-code: 1
+  skip-dirs:
+    - internal/rest/api/versions
+    - internal/rest/api_hidden/versions
+  tests: true
+  timeout: 5m
+
+linters-settings:
+  errcheck:
+    check-blank: true
+    check-type-assertions: true
+  exhaustive:
+    default-signifies-exhaustive: true
+  gocritic:
+    enabled-tags:
+      - diagnostic
+      - experimental
+      - opinionated
+      - performance
+      - style
+    settings:
+      hugeParam:
+        # Docs say this is the default, but for some reason without this set
+        # the rule doesn't trigger locally.
+        sizeThreshold: 80
+  gocyclo:
+    min-complexity: 10
+  gofmt:
+    simplify: true
+  goimports:
+    local-prefixes: github.com/snyk/user-docs/tools/api-docs-generator
+  gosec:
+    config:
+      G306: "0644"
+  gomnd:
+    checks:
+      - argument
+      - assign
+      - case
+      - condition
+      - operation
+      - return
+  govet:
+    check-shadowing: true
+  lll:
+    line-length: 160
+  misspell:
+    locale: US
+  nolintlint:
+    allow-leading-space: true
+    allow-unused: false
+    require-explanation: true
+    require-specific: true
+  prealloc:
+    simple: true
+    range-loops: true
+    for-loops: true
+  staticcheck:
+    checks:
+      - all
+      - -SA1019
+    go: "1.18"
+  stylecheck:
+    checks:
+      - all
+    go: "1.18"
+  varcheck:
+    exported-fields: true
+
+linters:
+  enable:
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - contextcheck
+    - dogsled
+    - dupl
+    - durationcheck
+    - errname
+    - errorlint
+    - exhaustive
+    - exportloopref
+    - forcetypeassert
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - goimports
+    - gosec
+    - lll
+    - misspell
+    - nakedret
+    - nestif
+    - nilerr
+    - nilnil
+    - noctx
+    - nolintlint
+    - prealloc
+    - promlinter
+    - sqlclosecheck
+    - stylecheck
+    - tenv
+    - thelper
+    - tparallel
+    - unconvert
+    - unparam
+    - wastedassign
+    - whitespace
+
+issues:
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - bodyclose
+        - goconst
+    - path: test/
+      linters:
+        - testpackage

tools/api-docs-generator/Makefile

@@ -0,0 +1,14 @@
+test: tidy lint
+	go test ./...
+
+run:
+	@go run . config.yml ../..
+
+lint: tidy
+	go run github.com/golangci/golangci-lint/cmd/golangci-lint run
+
+format: tidy
+	go run golang.org/x/tools/cmd/goimports -w -local=github.com/snyk/user-docs/tools/api-docs-generator .
+
+tidy:
+	go mod tidy

tools/api-docs-generator/README.md

@@ -0,0 +1,23 @@
+# API Docs Generator
+
+This utility generates API documentation from the openapi specification files. See `config.yml` for the configuration options.
+
+By default the utility will:
+1. Fetch the latest rest specification from `api.snyk.io` and update the copy in the docs repo
+2. Use the v1 specification in the docs repo as a source of truth for the API documentation
+3. Generate the API documentation in the `docs/snyk-api/reference` directory based on the v1 and REST specs
+
+## Usage
+
+To generate the API documentation locally, run:
+
+```bash
+make run
+```
+
+## Development
+
+To test the utility, run:
+```bash
+make test
+```

tools/api-docs-generator/config.yml

@@ -0,0 +1,12 @@
+fetcher:
+  source: https://api.snyk.io/rest/openapi
+  destination: docs/.gitbook/assets/rest-spec.json
+specs:
+- path: docs/.gitbook/assets/spec.yaml
+  suffix: " (v1)"
+  docsHint: This document uses the v1 API. For more details, see the [v1 API](../v1-api).
+- path: docs/.gitbook/assets/rest-spec.json
+  docsHint: This document uses the REST API. For more details, see the [Authentication for API](../authentication-for-api/) page.
+
+output:
+  apiReferencePath: docs/snyk-api/reference

tools/api-docs-generator/config/config.go

@@ -0,0 +1,38 @@
+package config
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Fetcher struct {
+	Source      string `yaml:"source"`
+	Destination string `yaml:"destination"`
+}
+
+type Spec struct {
+	Path     string `yaml:"path"`
+	Suffix   string `yaml:"suffix,omitempty"`
+	DocsHint string `yaml:"docsHint,omitempty"`
+}
+
+type Output struct {
+	APIReferencePath string `yaml:"apiReferencePath"`
+}
+
+type Config struct {
+	Fetcher Fetcher `yaml:"fetcher"`
+	Specs   []Spec  `yaml:"specs"`
+	Output  Output  `yaml:"output"`
+}
+
+func Parse(filename string) (Config, error) {
+	cfg := Config{}
+	file, err := os.Open(filename)
+	if err != nil {
+		return cfg, err
+	}
+	err = yaml.NewDecoder(file).Decode(&cfg)
+	return cfg, err
+}

tools/api-docs-generator/config/config_test.go

@@ -0,0 +1,74 @@
+package config
+
+import (
+	"os"
+	"reflect"
+	"testing"
+)
+
+func TestParse(t *testing.T) {
+	tests := []struct {
+		name    string
+		args    func() string
+		want    Config
+		wantErr bool
+	}{
+		{
+			name: "parses the config file",
+			args: func() string {
+				return createTempFile(t, `fetcher:
+  source: source
+  destination: destination
+specs:
+- path: .gitbook/assets/spec.yaml
+  suffix: " (v1)"
+  docsHint: hint 1
+- path: .gitbook/assets/rest-spec.json
+  docsHint: hint 2
+
+output:
+  apiReferencePath: snyk-api/reference`)
+			},
+			want: Config{
+				Fetcher: Fetcher{"source", "destination"},
+				Specs: []Spec{
+					{".gitbook/assets/spec.yaml", " (v1)", "hint 1"},
+					{".gitbook/assets/rest-spec.json", "", "hint 2"},
+				},
+				Output: Output{"snyk-api/reference"},
+			},
+		},
+		{
+			name: "invalid config",
+			args: func() string {
+				return createTempFile(t, `test 12`)
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := Parse(tt.args())
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("Parse() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func createTempFile(t *testing.T, content string) string {
+	t.Helper()
+	file, err := os.CreateTemp("", "config")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = file.WriteString(content)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return file.Name()
+}