Jakub Narębski

one of editors of Git Rev News: https://git.github.io/rev_news/

  • 0 Posts
  • 7 Comments
Joined 1 year ago
cake
Cake day: July 30th, 2023

help-circle

  • One thing that is not made clear in the article, is that there is a separate reflog for HEAD, and separate reflogs for individual branches.

    HEAD reflog logs changes such as “checkout: moving from next to main”. Branch reflog logs changes such as “branch: Created from HEAD” (first entry in branch reflog). Most are common to both (i.e. git logs both to HEAD reflog and the reflog of currently checked out branch).



  • Not much new here (I think I saw nearly the same description of Git history a short while ago), and there are a few factual errors in there - or at least parts that are not clear.

    1. The “tree” objects have nothing to do with the tree command, and nothing to do with how repo objects are stored on the filesystem. You can display tree objects with “git cat-file -p” (just like any type of objects), but also with “git ls-tree” command.

    2. The “commit” objects also store the reference to previous version (previous commit) in the history, which is very important. It enables Git to perform merges fast and well.

    3. A bit pedantic, but “tag” objects can point to any type of object, though tags pointing to commits are most common.