X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=Documentation%2Fgit-diff.txt;h=11c4216c4a5c705c6af55b1367cae96b13c20251;hb=4356736571c6845cb446e4a7c9d645868e558ca0;hp=639b969315d4c9c6ece95cdeb10c2f92bd17adab;hpb=90c88a698e8bf36ff5812a177f8b6c2f878f229c;p=git.git diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index 639b96931..11c4216c4 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -22,10 +22,10 @@ tree and the index file, or the index file and the working tree. words, the differences are what you _could_ tell git to further add to the index but you still haven't. You can stage these changes by using gitlink:git-add[1]. - - If exactly two paths are given, and at least one is untracked, - compare the two files / directories. This behavior can be - forced by --no-index. ++ +If exactly two paths are given, and at least one is untracked, +compare the two files / directories. This behavior can be +forced by --no-index. 'git-diff' [--options] --cached [] [--] [...]:: @@ -44,16 +44,34 @@ tree and the index file, or the index file and the working tree. 'git-diff' [--options] [--] [...]:: - This form is to view the changes between two , - for example, tips of two branches. + This is to view the changes between two arbitrary + . + +'git-diff' [--options] .. [--] [...]:: + + This is synonymous to the previous form. If on + one side is omitted, it will have the same effect as + using HEAD instead. + +'git-diff' [--options] \... [--] [...]:: + + This form is to view the changes on the branch containing + and up to the second , starting at a common ancestor + of both . "git-diff A\...B" is equivalent to + "git-diff $(git-merge-base A B) B". You can omit any one + of , which has the same effect as using HEAD instead. Just in case if you are doing something exotic, it should be -noted that all of the in the above description can be -any . +noted that all of the in the above description, except +for the last two forms that use ".." notations, can be any +. For a more complete list of ways to spell , see "SPECIFYING REVISIONS" section in gitlink:git-rev-parse[1]. - +However, "diff" is about comparing two _endpoints_, not ranges, +and the range notations (".." and +"\...") do not mean a range as defined in the +"SPECIFYING RANGES" section in gitlink:git-rev-parse[1]. OPTIONS ------- @@ -64,6 +82,9 @@ include::diff-options.txt[] the diff to the named paths (you can give directory names and get diff for all files under them). +Output format +------------- +include::diff-format.txt[] EXAMPLES -------- @@ -76,10 +97,10 @@ $ git diff --cached <2> $ git diff HEAD <3> ------------ + -<1> changes in the working tree not yet staged for the next commit. -<2> changes between the index and your last commit; what you +<1> Changes in the working tree not yet staged for the next commit. +<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 +<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:: @@ -90,30 +111,39 @@ $ git diff HEAD -- ./test <2> $ git diff HEAD^ HEAD <3> ------------ + -<1> instead of using the tip of the current branch, compare with the +<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 +<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. +<3> Compare the version before the last commit and the last commit. +Comparing branches:: ++ +------------ +$ git diff topic master <1> +$ git diff topic..master <2> +$ git diff topic...master <3> +------------ ++ +<1> Changes between the tips of the topic and the master branches. +<2> Same as above. +<3> Changes that occurred on the master branch since when the topic +branch was started off it. Limiting the diff output:: + ------------ $ git diff --diff-filter=MRC <1> -$ git diff --name-status -r <2> +$ git diff --name-status <2> $ git diff arch/i386 include/asm-i386 <3> ------------ + -<1> show only modification, rename and copy, but not addition +<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 behavior, 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. +<2> Show only names and the nature of change, but not actual +diff output. +<3> Limit diff output to named subtrees. Munging the diff output:: + @@ -122,9 +152,9 @@ $ git diff --find-copies-harder -B -C <1> $ git diff -R <2> ------------ + -<1> spend extra cycles to find renames, copies and complete +<1> Spend extra cycles to find renames, copies and complete rewrites (very expensive). -<2> output diff in reverse. +<2> Output diff in reverse. Author