What file metadata is preserved by Git?

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What file metadata is preserved by Git?

What are from ACL, owner, group ID, file permissions, atime, ctime, mtime preserved in Git history?

As I know executable permission is treated specially:

git add --chmod=+x one.txt
git add --chmod=-x two.txt

Is anything else preserved by Git?

metadata git
3 Answers

https://git.wiki.kernel.org/index.php/ContentLimitations

By design, git cannot track other aspects of the filesystem, including:

  • File modes (except for the "executable" bit, and being symbolic link)
  • File ownership (commits, however, remember 'author' and 'committer' info)
  • File modification and access times (these are set to checkout time for files which are modified during checkout)
  • File ACLs and extended attributes
  • Hard links
  • Empty directories (although it is not a fundamental limitation, git just automatically removes empty directories and does not add empty directories)
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