From f5e6b89b3a4420481a6ecdc05df325cb6d69d114 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 14 Dec 2006 00:03:18 -0800 Subject: Update git-diff documentation Porcelain documentation should talk in terms of end-user workflow, not in terms of implementation details. Do not suggest update-index, but git-add instead. Explain differences among 0-, 1- and 2-tree cases not as differences of number of trees given to the command, but say why user would want to give these number of trees to the command in what situation. Signed-off-by: Junio C Hamano --- Documentation/git-diff.txt | 52 +++++++++++++++++++++++++++++++--------------- 1 file changed, 35 insertions(+), 17 deletions(-) (limited to 'Documentation/git-diff.txt') diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index 228c4d95bd..127d68c962 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -14,30 +14,48 @@ DESCRIPTION ----------- Show changes between two trees, a tree and the working tree, a tree 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 trees given to the command. -* When no is given, the working tree and the index - file are compared, using `git-diff-files`. +'git-diff' [--options] [--] [...]:: -* When one is given, the working tree and the named - tree are compared, using `git-diff-index`. The option - `--cached` can be given to compare the index file and - the named tree. + This form is to view the changes you made relative to + the index (staging area for the next commit). In other + 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]. + +'git-diff' [--options] --cached [] [--] [...]:: + + This form is to view the changes you staged for the next + commit relative to the named . Typically you + would want comparison with the latest commit, so if you + do not give , it defaults to HEAD. + +'git-diff' [--options] -- [...]:: + + This form is to view the changes you have in your + working tree relative to the named . You can + use HEAD to compare it with the latest commit, or a + branch name to compare with the tip of a different + branch. + +'git-diff' [--options] -- [...]:: + + This form is to view the changes between two , + for example, tips of two branches. + +Just in case if you are doing something exotic, it should be +noted that all of the in the above description can be +any . -* When two 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. +include::diff-options.txt[] ...:: - The arguments are also passed to `git-diff-\*` - commands. + The parameters, when given, are used to limit + the diff to the named paths (you can give directory + names and get diff for all files under them). EXAMPLES @@ -51,7 +69,7 @@ $ git diff --cached <2> $ git diff HEAD <3> ------------ + -<1> changes in the working tree since your last git-update-index. +<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 -- cgit v1.2.3