path: root/Documentation/git-checkout-index.txt
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authorJunio C Hamano <>2005-09-08 00:26:23 (GMT)
committerJunio C Hamano <>2005-09-08 00:45:20 (GMT)
commit215a7ad1ef790467a4cd3f0dcffbd6e5f04c38f7 (patch)
tree6bc7aa4f652d0ef49108d9e30a7ea7fbf8e44639 /Documentation/git-checkout-index.txt
parent99977bd5fdeabbd0608a70e9411c243007ec4ea2 (diff)
Big tool rename.
As promised, this is the "big tool rename" patch. The primary differences since 0.99.6 are: (1) git-*-script are no more. The commands installed do not have any such suffix so users do not have to remember if something is implemented as a shell script or not. (2) Many command names with 'cache' in them are renamed with 'index' if that is what they mean. There are backward compatibility symblic links so that you and Porcelains can keep using the old names, but the backward compatibility support is expected to be removed in the near future. Signed-off-by: Junio C Hamano <>
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+v0.1, May 2005
+git-checkout-index - Copy files from the cache to the working directory
+'git-checkout-index' [-u] [-q] [-a] [-f] [-n] [--prefix=<string>]
+ [--] <file>...
+Will copy all files listed from the cache to the working directory
+(not overwriting existing files).
+ update stat information for the checked out entries in
+ the cache file.
+ be quiet if files exist or are not in the cache
+ forces overwrite of existing files
+ checks out all files in the cache (will then continue to
+ process listed files).
+ Don't checkout new files, only refresh files already checked
+ out.
+ When creating files, prepend <string> (usually a directory
+ including a trailing /)
+ Do not interpret any more arguments as options.
+Note that the order of the flags matters:
+ git-checkout-index -a -f file.c
+will first check out all files listed in the cache (but not overwrite
+any old ones), and then force-checkout `file.c` a second time (ie that
+one *will* overwrite any old contents with the same filename).
+Also, just doing "git-checkout-index" does nothing. You probably meant
+"git-checkout-index -a". And if you want to force it, you want
+"git-checkout-index -f -a".
+Intuitiveness is not the goal here. Repeatability is. The reason for
+the "no arguments means no work" thing is that from scripts you are
+supposed to be able to do things like:
+ find . -name '*.h' -print0 | xargs -0 git-checkout-index -f --
+which will force all existing `*.h` files to be replaced with their
+cached copies. If an empty command line implied "all", then this would
+force-refresh everything in the cache, which was not the point.
+To update and refresh only the files already checked out:
+ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh
+Oh, and the "--" is just a good idea when you know the rest will be
+filenames. Just so that you wouldn't have a filename of "-a" causing
+problems (not possible in the above example, but get used to it in
+The prefix ability basically makes it trivial to use
+git-checkout-index as an "export as tree" function. Just read the
+desired tree into the index, and do a
+ git-checkout-index --prefix=git-export-dir/ -a
+and git-checkout-index will "export" the cache into the specified
+NOTE The final "/" is important. The exported name is literally just
+prefixed with the specified string, so you can also do something like
+ git-checkout-index --prefix=.merged- Makefile
+to check out the currently cached copy of `Makefile` into the file
+Written by Linus Torvalds <>
+Documentation by David Greaves, Junio C Hamano and the git-list <>.
+Part of the link:git.html[git] suite