.nf
\fIgit\-checkout\-index\fR [\-u] [\-q] [\-a] [\-f] [\-n] [\-\-prefix=<string>]
- [\-\-stage=<number>]
+ [\-\-stage=<number>|all]
+ [\-\-temp]
[\-z] [\-\-stdin]
[\-\-] [<file>]*
.fi
When creating files, prepend <string> (usually a directory including a trailing /)
.TP
-\-\-stage=<number>
-Instead of checking out unmerged entries, copy out the files from named stage\&. <number> must be between 1 and 3\&.
+\-\-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\&.
+
+.TP
+\-\-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\&.
.TP
\-\-stdin
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:
-.IP
+.nf
$ find \&. \-name '*\&.h' \-print0 | xargs \-0 git\-checkout\-index \-f \-\-
+.fi
+
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 index, which was not the point\&. But since git\-checkout\-index accepts \-\-stdin it would be faster to use:
-.IP
+.nf
$ find \&. \-name '*\&.h' \-print0 | git\-checkout\-index \-f \-z \-\-stdin
+.fi
+
The \-\- is just a good idea when you know the rest will be filenames; it will prevent problems with a filename of, for example, \-a\&. Using \-\- is probably a good policy in scripts\&.
+.SH "USING --TEMP OR --STAGE=ALL"
+
+
+When \-\-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:
+
+.TP 3
+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\&.
+.TP
+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\&.
+.LP
+
+
+In both formats RS (the record separator) is newline by default but will be the null byte if \-z was passed on the command line\&. The temporary file names are always safe strings; they will never contain directory separators or whitespace characters\&. The path field is always relative to the current directory and the temporary file names are always relative to the top level directory\&.
+
+
+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\&.
+
.SH "EXAMPLES"
.TP
To update and refresh only the files already checked out
-.IP
+.nf
$ git\-checkout\-index \-n \-f \-a && git\-update\-index \-\-ignore\-missing \-\-refresh
+.fi
+
.TP
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:
-.IP
-$ git\-checkout\-index \-\-prefix=git\-export\-dir/ \-agit\-checkout\-index will "export" the index into the specified directory\&.
+.nf
+$ git\-checkout\-index \-\-prefix=git\-export\-dir/ \-a
+.fi
+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\&.
.TP
Export files with a prefix
-.IP
-$ git\-checkout\-index \-\-prefix=\&.merged\- MakefileThis will check out the currently cached copy of Makefile into the file \&.merged\-Makefile\&.
+.nf
+$ git\-checkout\-index \-\-prefix=\&.merged\- Makefile
+.fi
+This will check out the currently cached copy of Makefile into the file \&.merged\-Makefile\&.
.SH "AUTHOR"