There are many uses of staging in Git. Some are listed below: staging helps you split up one large change into multiple commits – Let’s say you worked on a large-ish change, involving a lot of files and quite a few different subtasks. You didn’t actually commit any of these — you were “in the …
There are three places where a file, say, can be – the (committed) tree, the index and the working copy. When you just add a file to a folder, you are adding it to the working copy. When you do something like git add file you add it to the index. And when you commit …
The Git book contains an article on what an index includes: The index is a binary file (generally kept in .git/index) containing a sorted list of path names, each with permissions and the SHA1 of a blob object; git ls-files can show you the contents of the index: $ git ls-files –stage 100644 63c918c667fa005ff12ad89437f2fdc80926e21c 0 …
You want skip-worktree. assume-unchanged is designed for cases where it is expensive to check whether a group of files have been modified; when you set the bit, git (of course) assumes the files corresponding to that portion of the index have not been modified in the working copy. So it avoids a mess of stat …
To get undo/show dir’s/files that are set to assume-unchanged run this: git update-index –no-assume-unchanged <file> To get a list of dir’s/files that are assume-unchanged run this: git ls-files -v|grep ‘^h’
Basically, git commit “records changes to the repository” while git push “updates remote refs along with associated objects“. So the first one is used in connection with your local repository, while the latter one is used to interact with a remote repository. Here is a nice picture from Oliver Steele, that explains the Git model …
If you aren’t totally sure what you mean by “uncommit” and don’t know if you want to use git reset, please see “Revert to a previous Git commit”. If you’re trying to understand git reset better, please see “Can you explain what “git reset” does in plain English?”. If you know you want to use …