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How to prevent Git from ignoring these ignored files?

PHPz
Release: 2023-04-03 09:24:17
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When we use Git for version control, we often need to ignore some files, such as temporary files, log files, cache files, etc. These files do nothing for code management, but they may interfere with our development process.

Normally, we can ignore these files by adding their file names or wildcards in the .gitignore file. But sometimes, we hope that some ignored files can still be managed by Git, such as when we want to submit certain configuration files or sample files to a remote repository.

So, how to prevent Git from ignoring these ignored files?

One way is to use the -f or --force option of the git add command. This option forces Git to add ignored files even if they are ignored by the .gitignore file. For example, use the git add -f <filename> command to force the addition of a file that is ignored by the .gitignore file.

It should be noted that although using this method can prevent Git from ignoring ignored files, this is not a recommended approach. Because ignored files are often unnecessary, forcing them to be added can clutter the code repository. In addition, if the ignored files need to be tracked, it is best to unignore them in the .gitignore file.

Another method is to use the git update-index command. This command can modify Git's index file and mark ignored files as needing tracking. Specifically, we can use the following two options:

  • --no-assume-unchanged: Unmark files that are marked as "assume unchanged".
  • --assume-unchanged: Mark a file as "assume unchanged", that is, a file that is ignored.

For example, use the git update-index --no-assume-unchanged <filename> command to unmark a file marked as "assume unchanged". Use the git update-index --assume-unchanged <filename> command to mark a file as "assume unchanged", that is, a file that is ignored.

It should be noted that there are some precautions when using this method. First, files marked "assumed unchanged" are not tracked by Git, so we need to manually add them to the staging area. Secondly, this method only works on the current branch. If you switch to a new branch, files marked as "presumed unchanged" will be reverted to the ignored state.

In summary, although you can use the method of forcibly adding or modifying the Git index to prevent Git from ignoring ignored files, this is not a recommended approach. Therefore, we should accurately list the files and directories that need to be ignored in the .gitignore file, which can avoid unnecessary problems while ensuring that the code warehouse is clear and orderly.

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