impl deb downloader

Signed-off-by: longjin <longjin@dragonos.org>

.gitignore

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+output

LICENSE

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Makefile

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+DOCKER_TAG ?= ubuntu2204
+PACKAGE_NAME ?=
+
+.PHONY: all
+all:
+	echo ""
+
+
+.PHONY: build-docker-ubuntu2204
+build-docker-ubuntu2204:
+	docker build -t deb-downloader:ubuntu2204 -f ./docker/Dockerfile.ubuntu2204 ./docker
+
+.PHONY: run
+run:
+	docker run --rm -it -v $(shell pwd):/app deb-downloader:$(DOCKER_TAG) bash
+
+.PHONY: download
+download:
+	docker run --rm -it -v $(shell pwd):/app deb-downloader:$(DOCKER_TAG) python3 main.py download $(PACKAGE_NAME)
+
+.PHONY: unpack
+unpack:
+	docker run --rm -it -v $(shell pwd):/app deb-downloader:$(DOCKER_TAG) python3 main.py unpack
+
+.PHONY: clean
+clean:
+	rm -rf ./output

README.md

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+# deb downloader
+
+这是一个用来下载deb包及其依赖项，并解压到指定文件夹的工具
+
+## 安装
+
+```
+make build-docker-ubuntu2204
+```
+
+## 使用
+
+### 下载deb包及其依赖项
+
+请将xxx替换成你要下载的deb包的名称
+
+```
+make PACKAGE_NAME=xxx download
+```
+
+### 解压deb包
+
+这个命令将会把上述的deb包解压到`output/sysroot`文件夹中
+
+```
+make unpack
+```
+
+### 清理
+
+```
+make clean
+```

README_EN.md

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+# Deb Downloader
+This is a tool used for downloading .deb packages and their dependencies, and extracting them to a specified folder.
+## Installation
+```
+make build-docker-ubuntu2204
+```
+## Usage
+### Download .deb Package and Its Dependencies
+Please replace `xxx` with the name of the .deb package you wish to download.
+```
+make PACKAGE_NAME=xxx download
+```
+### Extract the .deb Package
+This command will extract the aforementioned .deb package into the `output/sysroot` folder.
+```
+make unpack
+```
+### Cleanup
+```
+make clean
+```

docker/Dockerfile.ubuntu2204

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+FROM ubuntu:jammy
+
+COPY ./sources.list.ubuntu2204 /etc/apt/sources.list
+
+RUN apt-get update && apt-get install -y python3 python3-pip apt-rdepends && ln -s /usr/bin/python3 /usr/bin/python
+
+WORKDIR /app

docker/sources.list.ubuntu2204

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+deb http://mirrors.tencent.com/ubuntu/ jammy main restricted universe multiverse
+deb http://mirrors.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
+deb http://mirrors.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
+#deb http://mirrors.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
+#deb http://mirrors.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse
+deb-src http://mirrors.tencent.com/ubuntu/ jammy main restricted universe multiverse
+deb-src http://mirrors.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
+deb-src http://mirrors.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
+#deb-src http://mirrors.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
+#deb-src http://mirrors.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse

main.py

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+import argparse
+import re
+import subprocess
+import time
+import os
+
+OUT_DIR = "output"
+DEB_DIR = f"{OUT_DIR}/debs"
+SYSROOT_DIR = f"{OUT_DIR}/sysroot"
+
+def resolve_packages(package_name: str):
+    print("Resolving all packages...")
+    
+    # Run the apt-rdepends command and capture its output
+    result = subprocess.run(['apt-rdepends', '-d', package_name], capture_output=True, text=True)
+    
+    # Check if the command was successful
+    if result.returncode != 0:
+        print(f"Error resolving dependencies for {package_name}")
+        return {}
+
+    apt_rdepends_output = result.stdout
+    
+    # apt_rdepends_output = f"""
+    # Reading package lists... Done
+    # Building dependency tree... Done
+    # Reading state information... Done
+    # digraph packages {{
+    # concentrate=true;
+    # size="30,40";
+    # "libc6" [shape=box];
+    # "libc6" -> "libcrypt1";
+    # "libc6" -> "libgcc-s1";
+    # "libcrypt1" [shape=box];
+    # "libcrypt1" -> "libc6";
+    # "libgcc-s1" [shape=box];
+    # "libgcc-s1" -> "gcc-12-base";
+    # "libgcc-s1" -> "libc6";
+    # "gcc-12-base" [shape=box];
+    # }}
+    # """
+    
+    # Regular expression to match package names
+    package_pattern = re.compile(r'"([a-zA-Z0-9_-]+)"')
+    
+    # Find all package names in the output
+    packages = package_pattern.findall(apt_rdepends_output)
+    
+    # 对packages去重
+    packages = list(set(packages))
+    
+    return packages
+
+def download(args: argparse.Namespace):
+    '''
+    Download deb and its dependencies
+    
+    '''
+    package_name = args.name
+    print(f"package_name: {package_name}")
+    
+    # resolve all packages
+    packages = resolve_packages(package_name)
+    print(f"packages: {packages}")
+    
+    # update
+    subprocess.run(['apt', 'update'], check=True)
+    # Download the packages using apt-
+    packages_str = ' '.join(packages)
+    try:
+        subprocess.run('apt install --reinstall --download-only -y ' + packages_str, check=True, shell=True)
+        print(f"Downloaded {packages_str}")
+    except subprocess.CalledProcessError as e:
+        print(f"Failed to download {packages_str}: {e}")
+
+    # Move the downloaded packages to the DEB_DIR
+    subprocess.run(['mkdir', '-p', DEB_DIR], check=True)
+    
+    subprocess.run('mv /var/cache/apt/archives/*.deb ' + DEB_DIR, check=True, shell=True)
+    
+    print(f"Downloaded {len(packages)} packages to {DEB_DIR}")
+
+def unpack(args: argparse.Namespace):
+    print("Executing unpack command")
+    
+    # 获取 DEB_DIR 下的所有 deb 文件列表
+    deb_files = [f for f in os.listdir(DEB_DIR) if f.endswith('.deb')]
+    
+    for deb_file in deb_files:
+        deb_path = os.path.join(DEB_DIR, deb_file)
+        subprocess.run(['dpkg', '-x', deb_path, SYSROOT_DIR], check=True)
+
+    print(f"Unpacked {len(deb_files)} packages to {SYSROOT_DIR}")
+
+def clean(args: argparse.Namespace):
+    print("Executing clean command")
+    subprocess.run(['rm', '-rf', OUT_DIR], check=True)
+    print(f"Cleaned up {OUT_DIR}")
+
+def help_command(args: argparse.Namespace):
+    print("""
+Usage: main.py [options]
+
+Options:
+  --download  Download deb and its dependencies
+  --unpack    Unpack downloaded files
+  --clean     Clean up temporary files
+  --help      Show this help message and exit
+""")
+
+def main():
+    parser = argparse.ArgumentParser(description="deb downloader")
+    subparsers = parser.add_subparsers(dest="command")
+
+    # Subcommand: download
+    download_parser = subparsers.add_parser("download", help="Download package")
+    download_parser.add_argument("name", help="Name of the deb package")
+    download_parser.set_defaults(func=download)
+
+    # Subcommand: unpack
+    unpack_parser = subparsers.add_parser("unpack", help="Unpack downloaded files")
+    unpack_parser.set_defaults(func=unpack)
+
+    # Subcommand: clean
+    clean_parser = subparsers.add_parser("clean", help="Clean up temporary files")
+    clean_parser.set_defaults(func=clean)
+
+    # Subcommand: help
+    help_parser = subparsers.add_parser("help", help="Show help message")
+    help_parser.set_defaults(func=help_command)
+
+    args = parser.parse_args()
+
+    if args.command:
+        args.func(args)
+    else:
+        parser.print_help()
+
+if __name__ == "__main__":
+    main()