Re: git ls-files handles paths differently in Windows and Mac (probably Linux)

From: Kirill Likhodedov <kirill.likhodedov@jetbrains.com>
Date: Oct 13, 2010, 09:09 UTC
Message-ID: <AEC0873D-4AFC-402E-9D7D-197A7D40DCDD@jetbrains.com>
In-Reply-To: <AANLkTi=6nJAYKB_MTjXL3oftcWtr_wtdHaULYzRcP6oP@mail.gmail.com>

12.10.2010, в 19:25, Alex Riesen написал(а):

> 
> Besides, if you have to just check if the tree under a path is changed
> you can always use
> --exit-code or --quiet to "git diff", it will speed them up.

Unfortunately, that's not enough: I have to know which files have changed and how (created, deleted, modified). Also I feel that it's not the size of the output which is slow - the scan of directories itself is.

>> And also "git diff --name-status" doesn't show unversioned files.
>> As I've found, "git ls-files" is the only command which shows unversioned files (except git status), isn't it?
> 
> Yes, you're right. What are you trying to do, BTW?

I'm developing a plugin for Git integration for IntelliJ IDEA (an IDE for Java and other languages). And the task I'm working now is to get the status of index and working tree. I want to make it as fast as possible. To work with a Git repository I start a process with git native commands, so every command to execute is additional cost. (Maybe I could work with the filesystem and raw Git repository, but it would be an overhead).

If we forget about "git status --porcelain" there is no single command to get the whole status. I could use "git ls-files -ov" for unversioned files + "git diff --name-status" for all other. OR "git ls-files -douvm" for the changes in the working tree + "git diff-index --cached" for the changes in the index. OR "git ls-files -ov" for unversioned + "git diff-files" for other files in the working tree + "git diff-index --cached" for the changes in the index. or maybe something else

I've made a script which executes these commands (which allow to get the total status) on a large repository many times. My results show that "ls-files -douvm"+"git diff-index --cached" is the fastest combination.

Do you think I could achieve the same result in a simpler or faster way?

Thanks a lot.

---------------------------------- Kirill Likhodedov JetBrains, Inc http://www.jetbrains.com "Develop with pleasure!"