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authorLibravatar Chris Rorvick <chris@rorvick.com>2012-12-17 00:45:01 -0600
committerLibravatar Junio C Hamano <gitster@pobox.com>2012-12-18 11:04:52 -0800
commite1cdf63316348332e4e267aeaab5b510beae0227 (patch)
tree22399c048dc2db507d08fa71905b2ce259705364 /Documentation
parentFix sizeof usage in get_permutations (diff)
downloadtgif-e1cdf63316348332e4e267aeaab5b510beae0227.tar.xz
Documentation/git-checkout.txt: clarify usage
The forms of checkout that do not take a path are lumped together in the DESCRIPTION section, but the description for this group is dominated by explanation of the -b|-B form. Split these apart for more clarity. Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/git-checkout.txt43
1 files changed, 33 insertions, 10 deletions
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 7958a47006..ad33eb49ae 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -21,18 +21,26 @@ or the specified tree. If no paths are given, 'git checkout' will
also update `HEAD` to set the specified branch as the current
branch.
-'git checkout' [<branch>]::
+'git checkout' <branch>::
+ To prepare for working on <branch>, switch to it by updating
+ the index and the files in the working tree, and by pointing
+ HEAD at the branch. Local modifications to the files in the
+ working tree are kept, so that they can be committed to the
+ <branch>.
++
+You could omit <branch>, in which case the command degenerates to
+"check out the current branch", which is a glorified no-op with a
+rather expensive side-effects to show only the tracking information,
+if exists, for the current branch.
+
'git checkout' -b|-B <new_branch> [<start point>]::
-'git checkout' [--detach] [<commit>]::
- This form switches branches by updating the index, working
- tree, and HEAD to reflect the specified branch or commit.
-+
-If `-b` is given, a new branch is created as if linkgit:git-branch[1]
-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.
+ Specifying `-b` causes a new branch to be created as if
+ linkgit:git-branch[1] 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
@@ -45,6 +53,21 @@ $ git checkout <branch>
that is to say, the branch is not reset/created unless "git checkout" is
successful.
+'git checkout' --detach [<branch>]::
+'git checkout' <commit>::
+
+ Prepare to work on top of <commit>, by detaching HEAD at it
+ (see "DETACHED HEAD" section), and updating the index and the
+ files in the working tree. Local modifications to the files
+ in the working tree are kept, so that the resulting working
+ tree will be the state recorded in the commit plus the local
+ modifications.
++
+Passing `--detach` forces this behavior in the case of a <branch> (without
+the option, giving a branch name to the command would check out the branch,
+instead of detaching HEAD at it), or the current commit,
+if no <branch> is specified.
+
'git checkout' [-p|--patch] [<tree-ish>] [--] <pathspec>...::
When <paths> or `--patch` are given, 'git checkout' does *not*