diff options
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diff --git a/Documentation/git-diff-pairs.adoc b/Documentation/git-diff-pairs.adoc new file mode 100644 index 0000000000..e31f2e2fbb --- /dev/null +++ b/Documentation/git-diff-pairs.adoc @@ -0,0 +1,56 @@ +git-diff-pairs(1) +================= + +NAME +---- +git-diff-pairs - Compare the content and mode of provided blob pairs + +SYNOPSIS +-------- +[synopsis] +git diff-pairs -z [<diff-options>] + +DESCRIPTION +----------- +Show changes for file pairs provided on stdin. Input for this command must be +in the NUL-terminated raw output format as generated by commands such as `git +diff-tree -z -r --raw`. By default, the outputted diffs are computed and shown +in the patch format when stdin closes. + +Usage of this command enables the traditional diff pipeline to be broken up +into separate stages where `diff-pairs` acts as the output phase. Other +commands, such as `diff-tree`, may serve as a frontend to compute the raw +diff format used as input. + +Instead of computing diffs via `git diff-tree -p -M` in one step, `diff-tree` +can compute the file pairs and rename information without the blob diffs. This +output can be fed to `diff-pairs` to generate the underlying blob diffs as done +in the following example: + +----------------------------- +git diff-tree -z -r -M $a $b | +git diff-pairs -z +----------------------------- + +Computing the tree diff upfront with rename information allows patch output +from `diff-pairs` to be progressively computed over the course of potentially +multiple invocations. + +Pathspecs are not currently supported by `diff-pairs`. Pathspec limiting should +be performed by the upstream command generating the raw diffs used as input. + +Tree objects are not currently supported as input and are rejected. + +Abbreviated object IDs in the `diff-pairs` input are not supported. Outputted +object IDs can be abbreviated using the `--abbrev` option. + +OPTIONS +------- + +include::diff-options.adoc[] + +include::diff-generate-patch.adoc[] + +GIT +--- +Part of the linkgit:git[1] suite |