git-rm doc: Describe how to sync index & work tree

Newcomers to git that want to remove from the index only the
files that have disappeared from the working tree will probably
look for a way to do that in the documentation for 'git rm'.

Therefore, describe how that can be done (even though it involves
other commands than 'git rm'). Based on a suggestion by Junio,
but re-arranged and rewritten to better fit into the style of
command reference.

While at it, change a single occurrence of "work tree" to "working
tree" for consistency.

Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Björn Gustavsson 2009-12-07 19:35:42 +01:00 committed by Junio C Hamano
parent 441947f6d7
commit 47b7012024

View file

@ -13,7 +13,7 @@ DESCRIPTION
-----------
Remove files from the index, or from the working tree and the index.
`git rm` will not remove a file from just your working directory.
(There is no option to remove a file only from the work tree
(There is no option to remove a file only from the working tree
and yet keep it in the index; use `/bin/rm` if you want to do that.)
The files being removed have to be identical to the tip of the branch,
and no updates to their contents can be staged in the index,
@ -81,6 +81,58 @@ two directories `d` and `d2`, there is a difference between
using `git rm \'d\*\'` and `git rm \'d/\*\'`, as the former will
also remove all of directory `d2`.
REMOVING FILES THAT HAVE DISAPPEARED FROM THE FILESYSTEM
--------------------------------------------------------
There is no option for `git rm` to remove from the index only
the paths that have disappeared from the filesystem. However,
depending on the use case, there are several ways that can be
done.
Using "git commit -a"
~~~~~~~~~~~~~~~~~~~~~
If you intend that your next commit should record all modifications
of tracked files in the working tree and record all removals of
files that have been removed from the working tree with `rm`
(as opposed to `git rm`), use `git commit -a`, as it will
automatically notice and record all removals. You can also have a
similar effect without committing by using `git add -u`.
Using "git add -A"
~~~~~~~~~~~~~~~~~~
When accepting a new code drop for a vendor branch, you probably
want to record both the removal of paths and additions of new paths
as well as modifications of existing paths.
Typically you would first remove all tracked files from the working
tree using this command:
----------------
git ls-files -z | xargs -0 rm -f
----------------
and then "untar" the new code in the working tree. Alternately
you could "rsync" the changes into the working tree.
After that, the easiest way to record all removals, additions, and
modifications in the working tree is:
----------------
git add -A
----------------
See linkgit:git-add[1].
Other ways
~~~~~~~~~~
If all you really want to do is to remove from the index the files
that are no longer present in the working tree (perhaps because
your working tree is dirty so that you cannot use `git commit -a`),
use the following command:
----------------
git diff --name-only --diff-filter=D -z | xargs -0 git rm --cached
----------------
EXAMPLES
--------
git rm Documentation/\\*.txt::