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diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt new file mode 100644 index 0000000000..7267bcd7a0 --- /dev/null +++ b/Documentation/git-diff.txt @@ -0,0 +1,116 @@ +git-diff(1) +=========== + +NAME +---- +git-diff - Show changes between commits, commit and working tree, etc + + +SYNOPSIS +-------- +'git-diff' [ --diff-options ] <ent>{0,2} [<path>...] + +DESCRIPTION +----------- +Show changes between two ents, an ent and the working tree, an +ent and the index file, or the index file and the working tree. +The combination of what is compared with what is determined by +the number of ents given to the command. + +* When no <ent> is given, the working tree and the index + file is compared, using `git-diff-files`. + +* When one <ent> is given, the working tree and the named + tree is compared, using `git-diff-index`. The option + `--cached` can be given to compare the index file and + the named tree. + +* When two <ent>s are given, these two trees are compared + using `git-diff-tree`. + +OPTIONS +------- +--diff-options:: + '--diff-options' are passed to the `git-diff-files`, + `git-diff-index`, and `git-diff-tree` commands. See the + documentation for these commands for description. + +<path>...:: + The <path> arguments are also passed to `git-diff-\*` + commands. + + +EXAMPLES +-------- + +Various ways to check your working tree:: ++ +------------ +$ git diff <1> +$ git diff --cached <2> +$ git diff HEAD <3> +------------ ++ +<1> changes in the working tree since your last git-update-index. +<2> changes between the index and your last commit; what you +would be committing if you run "git commit" without "-a" option. +<3> changes in the working tree since your last commit; what you +would be committing if you run "git commit -a" + +Comparing with arbitrary commits:: ++ +------------ +$ git diff test <1> +$ git diff HEAD -- ./test <2> +$ git diff HEAD^ HEAD <3> +------------ ++ +<1> instead of using the tip of the current branch, compare with the +tip of "test" branch. +<2> instead of comparing with the tip of "test" branch, compare with +the tip of the current branch, but limit the comparison to the +file "test". +<3> compare the version before the last commit and the last commit. + + +Limiting the diff output:: ++ +------------ +$ git diff --diff-filter=MRC <1> +$ git diff --name-status -r <2> +$ git diff arch/i386 include/asm-i386 <3> +------------ ++ +<1> show only modification, rename and copy, but not addition +nor deletion. +<2> show only names and the nature of change, but not actual +diff output. --name-status disables usual patch generation +which in turn also disables recursive behaviour, so without -r +you would only see the directory name if there is a change in a +file in a subdirectory. +<3> limit diff output to named subtrees. + +Munging the diff output:: ++ +------------ +$ git diff --find-copies-harder -B -C <1> +$ git diff -R <2> +------------ ++ +<1> spend extra cycles to find renames, copies and complete +rewrites (very expensive). +<2> output diff in reverse. + + +Author +------ +Written by Linus Torvalds <torvalds@osdl.org> + +Documentation +-------------- +Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. + +GIT +--- +Part of the gitlink:git[7] suite + |