git checkout-index [-u] [-q] [-a] [-f] [-n] [--prefix=<string>] [--stage=<number>|all] [--temp] [-z] [--stdin] [--] [<file>...]
update stat information for the checked out entries in the index file.-q, --quiet
be quiet if files exist or are not in the index-f, --force
forces overwrite of existing files-a, --all
checks out all files in the index. Cannot be used together with explicit filenames.-n, --no-create
Don’t checkout new files, only refresh files already checked out.--prefix=<string>
When creating files, prepend <string> (usually a directory including a trailing /)--stage=<number>|all
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.--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.--stdin
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.-z
Only meaningful with --stdin; paths are separated with NUL character instead of LF.--
Do not interpret any more arguments as options.
$ find . -name '*.h' -print0 | xargs -0 git checkout-index -f --
$ find . -name '*.h' -print0 | git checkout-index -f -z --stdin
1.tempname TAB path RSThe 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 RSThe 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.
$ git checkout-index -n -f -a && git update-index --ignore-missing --refresh
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:git checkout-index will "export" the index into the specified directory.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
$ git checkout-index --prefix=git-export-dir/ -a
$ git checkout-index --prefix=.merged- Makefile