add github workflows

.github/workflows/codeql.yml

@@ -0,0 +1,45 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: '41 4 * * 4'
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # required to fetch internal or private CodeQL packs
+      packages: read
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: go
+          build-mode: autobuild
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: ${{ matrix.build-mode }}
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/go.yml

@@ -0,0 +1,29 @@
+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+    tags: [ "*" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.22'
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v ./...

README.md

@@ -3,23 +3,27 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT%202.0-blue.svg)](https://github.com/sergkondr/docker-tree/blob/main/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/sergkondr/docker-tree.svg)](https://github.com/sergkondr/docker-tree/releases/latest)
 [![Go Report Card](https://goreportcard.com/badge/github.com/sergkondr/docker-tree)](https://goreportcard.com/report/github.com/sergkondr/docker-tree)
+[![Go](https://github.com/sergkondr/docker-tree/actions/workflows/go.yml/badge.svg)](https://github.com/sergkondr/docker-tree/actions/workflows/go.yml)
+[![CodeQL](https://github.com/sergkondr/docker-ps/actions/workflows/codeql.yml/badge.svg)](https://github.com/sergkondr/docker-ps/actions/workflows/codeql.yml)
 
-
-This command shows the directory tree of a Docker image, like the 'tree' command. 
-Provide the image name and an optional tag or digest to view the file structure inside the image. 
+This command shows the directory tree of a Docker image, like the 'tree' command.
+Provide the image name and an optional tag or digest to view the file structure inside the image.
 You can also specify a directory to see the file tree relative to this directory.
 
-This is not a replacement for the amazing [Dive](https://github.com/wagoodman/dive) utility, but it works as a Docker plugin, so you might find it simpler and more convenient
-Think of this app mainly as an attempt to understand how Docker images work and how to create Docker plugins. However, it does work, and I hope you find it useful.
+This is not a replacement for the amazing [Dive](https://github.com/wagoodman/dive) utility, but it works as a Docker
+plugin, so you might find it simpler and more convenient
+Think of this app mainly as an attempt to understand how Docker images work and how to create Docker plugins. However,
+it does work, and I hope you find it useful.
 
 ### Install
+
 ```
 mv ./docker-tree ~/.docker/cli-plugins/docker-tree
 ```
 
 ### Usage
+
 ```shell
-# Absent image will be pulled automatically
 ➜ docker tree alpine:3.20 /etc/ssl
 processing image: alpine:3.20
 ssl/