diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..bbc8ff5
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,98 @@
+name: CI
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ rc, master ]
+  pull_request:
+    branches: [ ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  linux:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+
+      - name: apt
+        run: sudo apt install device-tree-compiler
+
+      # Runs a single command using the runners shell
+      - name: Unit Test
+        run: ./gradlew check && ./gradlew clean
+
+      # Runs a set of commands using the runners shell
+      - name: Integration Test
+        run: |
+         ./integrationTest.py
+
+  macos:
+    runs-on: macos-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+
+      - name: brew
+        run: brew install dtc
+
+      - name: Unit Test
+        run: ./gradlew check && ./gradlew clean
+
+      # Runs a set of commands using the runners shell
+      - name: Integration Test
+        run: ./integrationTest.py
+
+  windows:
+    runs-on: windows-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
+      - name: Display Python version
+        run: python -c "import sys; print(sys.version)"
+
+      - name: choco
+        run: choco install openssl
+
+      - name: Unit Test
+        run: ./gradlew.bat check && ./gradlew.bat clean
+
+      # Runs a set of commands using the runners shell
+      - name: Integration Test
+        run: python integrationTest.py
+
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 678b12d..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-branches:
-  only:
-    - master
-    - dev
-language: java
-os:
-  - linux
-  - osx
-dist: focal
-osx_image: xcode12.2
-addons:
-  apt:
-    packages:
-      - xz-utils
-      - libblkid-dev
-      - liblz4-tool
-      - device-tree-compiler
-      - python3
-      - python-all
-before_install:
-  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then brew update          ; fi
-  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then brew install lz4 dtc ; fi
-before_script:
- - ./gradlew check && ./gradlew clean
-script:
- - ./integrationTest.py
diff --git a/README.md b/README.md
index 7161f7d..e513281 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Android_boot_image_editor
-[![Build Status](https://www.travis-ci.com/cfig/Android_boot_image_editor.svg?branch=master)](https://www.travis-ci.com/cfig/Android_boot_image_editor)
+[![CI](https://github.com/cfig/Android_boot_image_editor/actions/workflows/main.yml/badge.svg)](https://github.com/cfig/Android_boot_image_editor/actions/workflows/main.yml)
 [![License](http://img.shields.io/:license-apache-blue.svg?style=flat-square)](http://www.apache.org/licenses/LICENSE-2.0.html)
 
 A tool for reverse engineering Android ROM images.
@@ -8,7 +8,7 @@ A tool for reverse engineering Android ROM images.
 
 #### install required packages
 
-Mac: `brew install lz4 xz`
+Mac: `brew install lz4 xz dtc`
 
 Linux: `sudo apt install git device-tree-compiler lz4 xz-utils zlib1g-dev openjdk-11-jdk gcc g++ python3`
 
diff --git a/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt b/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
index 04c7e0a..e253e4a 100644
--- a/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
@@ -421,7 +421,7 @@ data class BootV2(
 
     private fun toCommandLine(): CommandLine {
         val cmdPrefix = if (EnvironmentVerifier().isWindows) "python " else ""
-        val ret = CommandLine(cmdPrefix + Helper.prop("mkbootimg"))
+        val ret = CommandLine.parse(cmdPrefix + Helper.prop("mkbootimg"))
         ret.addArgument(" --header_version ")
         ret.addArgument(info.headerVersion.toString())
         ret.addArgument(" --base ")
diff --git a/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt b/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
index a732e49..506eb88 100644
--- a/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
@@ -206,7 +206,7 @@ data class BootV3(var info: MiscInfo = MiscInfo(),
 
     private fun toCommandLine(): CommandLine {
         val cmdPrefix = if (EnvironmentVerifier().isWindows) "python " else ""
-        return CommandLine(cmdPrefix + Helper.prop("mkbootimg")).let { ret ->
+        return CommandLine.parse(cmdPrefix + Helper.prop("mkbootimg")).let { ret ->
             ret.addArgument("--header_version")
             ret.addArgument(info.headerVersion.toString())
             if (kernel.size > 0) {
diff --git a/build.gradle.kts b/build.gradle.kts
index 1566023..a2043a3 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -77,16 +77,24 @@ tasks {
     if (bHackingMode) {
         logger.info("Hacking mode!")
         //C++ mkbootfs
-        packTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
-        packTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
-        unpackTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
-        unpackTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
         if (System.getProperty("os.name").contains("Mac")) {
+            //mac
             unpackTask.dependsOn("aosp:libsparse:simg2img:installReleaseMacos")
             packTask.dependsOn("aosp:libsparse:img2simg:installReleaseMacos")
+            // common
+            packTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
+            packTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
+            unpackTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
+            unpackTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
         } else if (System.getProperty("os.name").contains("Linux")) {
+            //linux
             unpackTask.dependsOn("aosp:libsparse:simg2img:installReleaseLinux")
             packTask.dependsOn("aosp:libsparse:img2simg:installReleaseLinux")
+            // common
+            packTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
+            packTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
+            unpackTask.dependsOn("aosp:mkbootfs.10:mkbootfsExecutable")
+            unpackTask.dependsOn("aosp:mkbootfs.11:mkbootfsExecutable")
         } else {
             logger.info("Disable C++ modules on Window$")
         }
diff --git a/gradlew.bat b/gradlew.bat
index ac1b06f..610862f 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,6 +14,10 @@
 @rem limitations under the License.
 @rem
 
+@rem set path for lz4
+@IF EXIST tools\bin SET PATH=%PATH%;tools\bin
+
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
diff --git a/tools/bin/lz4.exe b/tools/bin/lz4.exe
new file mode 100644
index 0000000..0733f9d
Binary files /dev/null and b/tools/bin/lz4.exe differ