optimize verify-pack a bit

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 0858fa8a6326a0c457bc9b4bb63ae35d3001ef65..7166414355e7469c5aeae0262f3902ce7398c989 100644 (file)
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -9,6 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'git-rebase' [-i | --interactive] [-v | --verbose] [-m | --merge]
+       [-s <strategy> | --strategy=<strategy>]
        [-C<n>] [ --whitespace=<option>] [-p | --preserve-merges]
        [--onto <newbase>] <upstream> [<branch>]
 'git-rebase' --continue | --skip | --abort
@@ -28,7 +29,10 @@ The current branch is reset to <upstream>, or <newbase> if the
 `git reset --hard <upstream>` (or <newbase>).
 
 The commits that were previously saved into the temporary area are
-then reapplied to the current branch, one by one, in order.
+then reapplied to the current branch, one by one, in order. Note that
+any commits in HEAD which introduce the same textual changes as a commit
+in HEAD..<upstream> are omitted (i.e., a patch already accepted upstream
+with a different commit message or timestamp will be skipped).
 
 It is possible that a merge failure will prevent this process from being
 completely automatic.  You will have to resolve any such merge failure
@@ -62,6 +66,26 @@ would be:
 The latter form is just a short-hand of `git checkout topic`
 followed by `git rebase master`.
 
+If the upstream branch already contains a change you have made (e.g.,
+because you mailed a patch which was applied upstream), then that commit
+will be skipped. For example, running `git-rebase master` on the
+following history (in which A' and A introduce the same set of changes,
+but have different committer information):
+
+------------
+          A---B---C topic
+         /
+    D---E---A'---F master
+------------
+
+will result in:
+
+------------
+                   B'---C' topic
+                  /
+    D---E---A'---F master
+------------
+
 Here is how you would transplant a topic branch based on one
 branch to another, to pretend that you forked the topic branch
 from the latter branch, using `rebase --onto`.
@@ -189,19 +213,22 @@ OPTIONS
 --skip::
        Restart the rebasing process by skipping the current patch.
 
--m, \--merge::
+-m::
+--merge::
        Use merging strategies to rebase.  When the recursive (default) merge
        strategy is used, this allows rebase to be aware of renames on the
        upstream side.
 
--s <strategy>, \--strategy=<strategy>::
+-s <strategy>::
+--strategy=<strategy>::
        Use the given merge strategy; can be supplied more than
        once to specify them in the order they should be tried.
        If there is no `-s` option, a built-in list of strategies
        is used instead (`git-merge-recursive` when merging a single
        head, `git-merge-octopus` otherwise).  This implies --merge.
 
--v, \--verbose::
+-v::
+--verbose::
        Display a diffstat of what changed upstream since the last rebase.
 
 -C<n>::
@@ -212,14 +239,16 @@ OPTIONS
 
 --whitespace=<nowarn|warn|error|error-all|strip>::
        This flag is passed to the `git-apply` program
-       (see gitlink:git-apply[1]) that applies the patch.
+       (see linkgit:git-apply[1]) that applies the patch.
 
--i, \--interactive::
+-i::
+--interactive::
        Make a list of the commits which are about to be rebased.  Let the
        user edit that list before rebasing.  This mode can also be used to
        split commits (see SPLITTING COMMITS below).
 
--p, \--preserve-merges::
+-p::
+--preserve-merges::
        Instead of ignoring merges, try to recreate them.  This option
        only works in interactive mode.
 
@@ -238,8 +267,7 @@ hook if one exists.  You can use this hook to do sanity checks and
 reject the rebase if it isn't appropriate.  Please see the template
 pre-rebase hook script for an example.
 
-You must be in the top directory of your project to start (or continue)
-a rebase.  Upon completion, <branch> will be the current branch.
+Upon completion, <branch> will be the current branch.
 
 INTERACTIVE MODE
 ----------------
@@ -298,7 +326,7 @@ rebasing.
 If you want to fold two or more commits into one, replace the command
 "pick" with "squash" for the second and subsequent commit.  If the
 commits had different authors, it will attribute the squashed commit to
-the author of the last commit.
+the author of the first commit.
 
 In both cases, or when a "pick" does not succeed (because of merge
 errors), the loop will stop to let you fix things, and you can continue
@@ -351,8 +379,8 @@ add other commits.  This can be used to split a commit into two:
   However, the working tree stays the same.
 
 - Now add the changes to the index that you want to have in the first
-  commit.  You can use gitlink:git-add[1] (possibly interactively) and/or
-  gitlink:git-gui[1] to do that.
+  commit.  You can use linkgit:git-add[1] (possibly interactively) and/or
+  linkgit:git-gui[1] to do that.
 
 - Commit the now-current index with whatever commit message is appropriate
   now.
@@ -363,7 +391,7 @@ add other commits.  This can be used to split a commit into two:
 
 If you are not absolutely sure that the intermediate revisions are
 consistent (they compile, pass the testsuite, etc.) you should use
-gitlink:git-stash[1] to stash away the not-yet-committed changes
+linkgit:git-stash[1] to stash away the not-yet-committed changes
 after each commit, test, and amend the commit if fixes are necessary.
 
 
@@ -378,4 +406,4 @@ Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
 
 GIT
 ---
-Part of the gitlink:git[7] suite
+Part of the linkgit:git[1] suite