Add simple logging

.github/workflows/ci.yaml

@@ -45,3 +45,44 @@ jobs:
         with:
           commit_message: Update compiled binaries
           file_pattern: "bin/*"
+
+  gen-tests:
+    needs: [lint, build]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GHA_TOKEN }}
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+
+      - name: Generate tests
+        run: |
+          ACTION_VERSION=${{ github.head_ref }} task gen-tests
+
+      - uses: stefanzweifel/git-auto-commit-action@v5
+        if: github.event_name == 'pull_request'
+        with:
+          commit_message: "[skip ci] Update tests"
+          file_pattern: ".github/workflows/test.yaml"
+
+  trigger-tests:
+    needs: [gen-tests]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      actions: write
+    steps:
+      - name: Trigger generated tests
+        uses: convictional/[email protected]
+        with:
+          owner: Y0sh1dk
+          repo: gha-docker-image-exists
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          workflow_file_name: test.yml
+          ref: ${{ github.head_ref}}
+          wait_workflow: true

.github/workflows/test.yaml

@@ -0,0 +1,41 @@
+name: gha-docker-image-exists Test
+
+on:
+  workflow_dispatch:
+
+jobs:
+  success:
+    runs-on: ubuntu-latest
+    steps:
+      - name: GHA Docker Image Exists
+        id: gha-docker-image-exists
+        continue-on-error: true
+        uses: Y0sh1dk/gha-docker-image-exists@feature/logging
+        with:
+          image: nginx:latest
+
+      - name: Check output
+        run: |
+          if [ ${{ steps.gha-docker-image-exists.outcome == 'success' }} ]; then
+            exit 0
+          else
+            exit 1
+          fi
+
+  fail:
+    runs-on: ubuntu-latest
+    steps:
+      - name: GHA Docker Image Exists
+        id: gha-docker-image-exists
+        continue-on-error: true
+        uses: Y0sh1dk/gha-docker-image-exists@feature/logging
+        with:
+          image: nginx:invalid-tag
+
+      - name: Check output
+        run: |
+          if [ ${{ steps.gha-docker-image-exists.outcome == 'failure' }} ]; then
+            exit 0
+          else
+            exit 1
+          fi

.github/workflows/test.yaml.tmpl

@@ -0,0 +1,41 @@
+name: [[[ .Env.WORKFLOW_NAME ]]] Test
+
+on:
+  workflow_dispatch:
+
+jobs:
+  success:
+    runs-on: ubuntu-latest
+    steps:
+      - name: GHA Docker Image Exists
+        id: gha-docker-image-exists
+        continue-on-error: true
+        uses: Y0sh1dk/gha-docker-image-exists@[[[ .Env.ACTION_VERSION ]]]
+        with:
+          image: nginx:latest
+
+      - name: Check output
+        run: |
+          if [ ${{ steps.gha-docker-image-exists.outcome == 'success' }} ]; then
+            exit 0
+          else
+            exit 1
+          fi
+
+  fail:
+    runs-on: ubuntu-latest
+    steps:
+      - name: GHA Docker Image Exists
+        id: gha-docker-image-exists
+        continue-on-error: true
+        uses: Y0sh1dk/gha-docker-image-exists@[[[ .Env.ACTION_VERSION ]]]
+        with:
+          image: nginx:invalid-tag
+
+      - name: Check output
+        run: |
+          if [ ${{ steps.gha-docker-image-exists.outcome == 'failure' }} ]; then
+            exit 0
+          else
+            exit 1
+          fi

Taskfile.yaml

@@ -33,6 +33,19 @@ tasks:
           golang:{{ .GO_VERSION }} \
           {{ .COMMAND }}
 
+  _gomplate-docker: &gomplate-docker
+    internal: true
+    cmds:
+      - |
+        docker run \
+          --rm \
+          -e WORKFLOW_NAME={{ .WORKFLOW_NAME }} \
+          -e ACTION_VERSION={{ .ACTION_VERSION }} \
+          -v $(pwd):/app \
+          -w /app \
+          hairyhenderson/gomplate:stable \
+          {{ .COMMAND }}
+
   build:
     <<: *go-docker
     internal: false
@@ -43,6 +56,17 @@ tasks:
     vars:
       COMMAND: go build -o bin/{{ .GIT_REPO_NAME }}-{{ .GOOS }}-{{ .GOARCH }} *.go {{ .CLI_ARGS }}
 
+  gen-tests:
+    <<: *gomplate-docker
+    internal: false
+    desc: Generate test workflows
+    requires:
+      vars: [ACTION_VERSION]
+    vars:
+      WORKFLOW_NAME: "{{ .GIT_REPO_NAME }}"
+      ACTION_VERSION: "{{ .ACTION_VERSION }}"
+      COMMAND: -f .github/workflows/test.yaml.tmpl --left-delim "[[[" --right-delim "]]]" > .github/workflows/test.yaml
+
   build-all:
     desc: Build the application for all platforms
     vars:

config.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"fmt"
+
 	"github.com/docker/docker/api/types/registry"
 	"github.com/sethvargo/go-githubactions"
 )
@@ -10,9 +12,17 @@ type Config struct {
 	password      string
 	serverAddress string
 	image         string
+	action        *githubactions.Action
+}
+
+func (c Config) String() string {
+	return fmt.Sprintf("Config{username: %s, password: #####, serverAddress: %s, image: %s}", c.username, c.serverAddress, c.image)
 }
 
 func (c *Config) GetAuthString() (string, error) {
+	c.action.Debugf("Getting auth string...")
+	defer c.action.Debugf("Got auth string")
+
 	authConfig := registry.AuthConfig{
 		Username:      c.username,
 		Password:      c.password,
@@ -28,6 +38,9 @@ func (c *Config) GetAuthString() (string, error) {
 }
 
 func NewFromInputs(action *githubactions.Action) (*Config, error) {
+	action.Debugf("Getting inputs...")
+	defer action.Debugf("Got inputs")
+
 	username := getInputDefault(action, "username", "")
 	password := getInputDefault(action, "password", "")
 	serverAddress := getInputDefault(action, "server_address", "")
@@ -38,12 +51,16 @@ func NewFromInputs(action *githubactions.Action) (*Config, error) {
 		password:      password,
 		serverAddress: serverAddress,
 		image:         image,
+		action:        action,
 	}
 
 	return &c, nil
 }
 
 func getInputDefault(action *githubactions.Action, key, fallback string) string {
+	action.Debugf("Getting input %s...", key)
+	defer action.Debugf("Got input %s", key)
+
 	if value := action.GetInput(key); value != "" {
 		return value
 	}

main.go

@@ -25,29 +25,28 @@ func main() {
 
 	config, err := NewFromInputs(action)
 	if err != nil {
-		panic(err)
+		action.Fatalf("Failed to get inputs: %s", err)
 	}
-
-	fmt.Println(config)
+	action.Debugf(config.String())
 
 	client, err := getDockerClient()
 	if err != nil {
-		panic(err)
+		action.Fatalf("Failed to get docker client: %s", err)
 	}
-	defer client.Close()
 
 	authStr, err := config.GetAuthString()
 	if err != nil {
-		panic(err)
+		action.Fatalf("Failed to get auth string: %s", err)
 	}
 
 	imageExists := doesImageExist(ctx, client, config.image, authStr)
 
+	client.Close()
+
 	if imageExists {
 		fmt.Println("Image exists")
 		os.Exit(0)
 	}
 
-	fmt.Println("Image does not exist")
-	os.Exit(1)
+	action.Fatalf("Image does not exist")
 }