| 中文文章 | English article | Interactive demo |
这个实验创建一个临时 Git 仓库，并让 app.txt 同时处于以下状态：
HEAD=version=1 Index=version=2 Working Tree=version=3
运行：
lab_path=$(bash setup.sh)
bash verify.sh "$lab_path"
bash cleanup.sh "$lab_path"
setup.sh 的标准输出只有临时仓库路径，便于在脚本中安全引用。verify.sh 会检查三个版本和 MM app.txt 状态。cleanup.sh 只接受带有本实验标记的仓库路径。
也可以一次运行完整自测：
bash test.sh
This lab creates a temporary Git repository in which app.txt has three simultaneous states:
HEAD=version=1 Index=version=2 Working Tree=version=3
Run:
lab_path=$(bash setup.sh)
bash verify.sh "$lab_path"
bash cleanup.sh "$lab_path"
The only standard output from setup.sh is the temporary repository path, so scripts can capture it safely. verify.sh checks all three versions and the MM app.txt state. cleanup.sh accepts only a repository marked as belonging to this lab.
Run the full self-test with:
bash test.sh