GIT\-CHECKOUT\-INDEXSection: Git Manual (1)
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NAMEgit-checkout-index - Copy files from the index to the working tree
git-checkout-index [-u] [-q] [-a] [-f] [-n] [--prefix=<string>] [--stage=<number>|all] [--temp] [-z] [--stdin] [--] [<file>]*
DESCRIPTIONWill copy all files listed from the index to the working directory (not overwriting existing files).
- update stat information for the checked out entries in the index file.
- be quiet if files exist or are not in the index
- forces overwrite of existing files
- checks out all files in the index. Cannot be used together with explicit filenames.
- Don't checkout new files, only refresh files already checked out.
- When creating files, prepend <string> (usually a directory including a trailing /)
- Instead of checking out unmerged entries, copy out the files from named stage. <number> must be between 1 and 3. Note: --stage=all automatically implies --temp.
- Instead of copying the files to the working directory write the content to temporary files. The temporary name associations will be written to stdout.
- Instead of taking list of paths from the command line, read list of paths from the standard input. Paths are separated by LF (i.e. one path per line) by default.
- Only meaningful with --stdin; paths are separated with NUL character instead of LF.
- Do not interpret any more arguments as options.
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" behavior is that from scripts you are supposed to be able to do:
.ft C $ find . -name '*.h' -print0 | xargs -0 git-checkout-index -f -- .ft
.ft C $ find . -name '*.h' -print0 | git-checkout-index -f -z --stdin .ft
USING --TEMP OR --STAGE=ALLWhen --temp is used (or implied by --stage=all) git-checkout-index will create a temporary file for each index entry being checked out. The index will not be updated with stat information. These options can be useful if the caller needs all stages of all unmerged entries so that the unmerged files can be processed by an external merge tool.
A listing will be written to stdout providing the association of temporary file names to tracked path names. The listing format has two variations:
1.tempname TAB path RS
The first format is what gets used when --stage is omitted or is not --stage=all. The field tempname is the temporary file name holding the file content and path is the tracked path name in the index. Only the requested entries are output.
2.stage1temp SP stage2temp SP stage3tmp TAB path RS
The second format is what gets used when --stage=all. The three stage temporary fields (stage1temp, stage2temp, stage3temp) list the name of the temporary file if there is a stage entry in the index or . if there is no stage entry. Paths which only have a stage 0 entry will always be omitted from the output.
If the object being copied out to a temporary file is a symbolic link the content of the link will be written to a normal file. It is up to the end-user or the Porcelain to make use of this information.
To update and refresh only the files already checked out
.ft C $ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh .ft
Using git-checkout-index to "export an entire tree"
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:
.ft C $ git-checkout-index --prefix=git-export-dir/ -a .ft
The final "/" is important. The exported name is literally just prefixed with the specified string. Contrast this with the following example.
Export files with a prefix
.ft C $ git-checkout-index --prefix=.merged- Makefile .ft
AUTHORWritten by Linus Torvalds <firstname.lastname@example.org>
DOCUMENTATIONDocumentation by David Greaves, Junio C Hamano and the git-list <email@example.com>.
GITPart of the git(7) suite