contrib/diffall/README

   1 The git-diffall script provides a directory based diff mechanism
   2 for git.
   3
   4 To determine what diff viewer is used, the script requires either
   5 the 'diff.tool' or 'merge.tool' configuration option to be set.
   6
   7 This script is compatible with most common forms used to specify a
   8 range of revisions to diff:
   9
  10   1. git diffall: shows diff between working tree and staged changes
  11   2. git diffall --cached [<commit>]: shows diff between staged
  12      changes and HEAD (or other named commit)
  13   3. git diffall <commit>: shows diff between working tree and named
  14      commit
  15   4. git diffall <commit> <commit>: show diff between two named commits
  16   5. git diffall <commit>..<commit>: same as above
  17   6. git diffall <commit>...<commit>: show the changes on the branch
  18      containing and up to the second, starting at a common ancestor
  19      of both <commit>
  20
  21 Note: all forms take an optional path limiter [-- <path>*]
  22
  23 The '--extcmd=<command>' option allows the user to specify a custom
  24 command for viewing diffs.  When given, configured defaults are
  25 ignored and the script runs $command $LOCAL $REMOTE.  Additionally,
  26 $BASE is set in the environment.
  27
  28 This script is based on an example provided by Thomas Rast on the
  29 Git list [1]:
  30
  31 [1] http://thread.gmane.org/gmane.comp.version-control.git/124807