I have a file which has been already added to my local repository. I've modified it in the working tree, so git status
shows me the file as modified. I would like to know what is the file content kept in the index before I stage the file.
I can think of two ways of doing that:
- revert a patch generated by
git diff
, and apply it on the file in the working tree - use
git checkout-index
, point to a temporary file and read the content from there
Is there an easier way?
Use the :
prefix to access objects in the current index (staged but not yet commited).
git show :file
See the gitrevisions manual for more information.
To cat a file out of the index, I’m not sure of a preexisting scriptable way, but you can use ls-files
to query the index:
$ git ls-files -s README
100644 67cfeb2016b24df1cb406c18145efd399f6a1792 0 README
$ git cat-file blob 67cfeb2016b24df1cb406c18145efd399f6a1792
# etc.
You can put the commands together like this:
git cat-file blob $(git ls-files -s README | awk '{print $2}')
(Although surely I am reinventing the wheel here.)
However, if you just want to open the original and your changes in an editor, use the difftool
command. It copies the indexed version to a temporary file for you and opens vimdiff
(or anything you want), and it is very flexible.
There are Three ways of getting diffs with git
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so to see what the difference is between the file in the working directory and the index you just need to:
git diff name_of_file
I've written about this in more detail elsewhere
来源:https://stackoverflow.com/questions/5032188/how-can-i-get-content-of-a-file-from-git-index