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-rw-r--r--Documentation/git-checkout.txt23
1 files changed, 20 insertions, 3 deletions
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 1bacd2e104..f88e9977d1 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -9,7 +9,7 @@ SYNOPSIS
--------
[verse]
'git checkout' [-q] [-f] [-m] [<branch>]
-'git checkout' [-q] [-f] [-m] [[-b|--orphan] <new_branch>] [<start_point>]
+'git checkout' [-q] [-f] [-m] [[-b|-B|--orphan] <new_branch>] [<start_point>]
'git checkout' [-f|--ours|--theirs|-m|--conflict=<style>] [<tree-ish>] [--] <paths>...
'git checkout' --patch [<tree-ish>] [--] [<paths>...]
@@ -21,7 +21,7 @@ also update `HEAD` to set the specified branch as the current
branch.
'git checkout' [<branch>]::
-'git checkout' -b <new branch> [<start point>]::
+'git checkout' -b|-B <new_branch> [<start point>]::
This form switches branches by updating the index, working
tree, and HEAD to reflect the specified branch.
@@ -31,6 +31,17 @@ were called and then checked out; in this case you can
use the `--track` or `--no-track` options, which will be passed to
'git branch'. As a convenience, `--track` without `-b` implies branch
creation; see the description of `--track` below.
++
+If `-B` is given, <new_branch> is created if it doesn't exist; otherwise, it
+is reset. This is the transactional equivalent of
++
+------------
+$ git branch -f <branch> [<start point>]
+$ git checkout <branch>
+------------
++
+that is to say, the branch is not reset/created unless "git checkout" is
+successful.
'git checkout' [--patch] [<tree-ish>] [--] <pathspec>...::
@@ -75,6 +86,12 @@ entries; instead, unmerged entries are ignored.
Create a new branch named <new_branch> and start it at
<start_point>; see linkgit:git-branch[1] for details.
+-B::
+ Creates the branch <new_branch> and start it at <start_point>;
+ if it already exists, then reset it to <start_point>. This is
+ equivalent to running "git branch" with "-f"; see
+ linkgit:git-branch[1] for details.
+
-t::
--track::
When creating a new branch, set up "upstream" configuration. See
@@ -170,7 +187,7 @@ As a special case, the `"@\{-N\}"` syntax for the N-th last branch
checks out the branch (instead of detaching). You may also specify
`-` which is synonymous with `"@\{-1\}"`.
+
-As a further special case, you may use `"A...B"` as a shortcut for the
+As a further special case, you may use `"A\...B"` as a shortcut for the
merge base of `A` and `B` if there is exactly one merge base. You can
leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.