Suppressing update on existing ns-3.37 directory containing a non-master branch Exiting...

在NS-3（Network Simulator 3）中，如果你有一个版本为3.37的目录，并且这个目录里包含了非master分支，有时候你想更新时不希望改变该分支的状态，可以使用`git`命令来实现“忽略对现有分支的更新”。这通常发生在你需要保留特定分支的某个状态，而不想因为合并新更改导致分支历史改变。

你可以这样做：

1. 切换到你要保护的分支，比如假设是`my-non-master-branch`：

   git checkout my-non-master-branch

2. 添加远程仓库的master分支到忽略列表，这样当你运行`git pull`时不会自动合并master的变化：

   git remote set-head origin master --no-fetch

这行命令告诉Git不要从远程获取master分支的最新信息。

3. 然后你可以安全地进行常规的`git pull`操作而不影响非master分支，除非你明确指定要合并或切换到master：

   git pull <other-remote> <other-branch>

相关问题

选项--targets FILENAME--non-recursive (-N)--quiet (-q)--config-dir DIR--no-ignore--auto-props--no-auto-props--force

The provided options appear to be related to a command-line utility or tool that likely has flags for various functionalities. Here's a brief explanation of each option:

1. `--targets FILENAME`: This flag specifies a file containing a list of targets for the tool to operate on. It allows you to input multiple targets from a single external file.

2. `--non-recursive (-N)`: If included, the tool will not perform actions recursively; it will only act on the specified targets directly, not any subdirectories.

3. `--quiet (-q)`: This flag requests a quieter output, which might mean suppressing some messages or reducing the verbosity of the tool's output.

4. `--config-dir DIR`: Specifies the directory where configuration files are stored, allowing the tool to read and use settings from that location.

5. `--no-ignore`: By default, the tool might ignore certain patterns or files. This flag disables that behavior, making it process everything without ignoring specific items.

6. `--auto-props`: Enables automatic property detection or generation, likely for files that support metadata or custom properties.

7. `--no-auto-props`: If present, overrides the automatic property detection, forcing the tool to not use any detected properties.

8. `--force`: This flag usually implies that the tool should proceed with its action even if there are potential conflicts or existing changes that could be overwritten.

To use these options in a command, they would typically be appended to the command name, like this:

tool --targets mytargets.txt --non-recursive -q --config-dir /path/to/config --no-ignore --auto-props --force

However, without knowing the specific tool, it's difficult to provide a demonstration. The actual syntax and behavior may vary depending on the tool in question.