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Documentation/reset: promote 'examples' one section up
Move the examples section upwards, before the discussion that gives the gory details. Adjust the style of the heading accordingly. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -83,113 +83,7 @@ OPTIONS
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Be quiet, only report errors.
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DISCUSSION
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----------
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The tables below show what happens when running:
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----------
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git reset --option target
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----------
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to reset the HEAD to another commit (`target`) with the different
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reset options depending on the state of the files.
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In these tables, A, B, C and D are some different states of a
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file. For example, the first line of the first table means that if a
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file is in state A in the working tree, in state B in the index, in
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state C in HEAD and in state D in the target, then "git reset --soft
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target" will put the file in state A in the working tree, in state B
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in the index and in state D in HEAD.
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working index HEAD target working index HEAD
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----------------------------------------------------
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A B C D --soft A B D
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--mixed A D D
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--hard D D D
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--merge (disallowed)
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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A B C C --soft A B C
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--mixed A C C
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--hard C C C
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--merge (disallowed)
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--keep A C C
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working index HEAD target working index HEAD
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----------------------------------------------------
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B B C D --soft B B D
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--mixed B D D
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--hard D D D
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--merge D D D
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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B B C C --soft B B C
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--mixed B C C
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--hard C C C
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--merge C C C
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--keep B C C
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working index HEAD target working index HEAD
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----------------------------------------------------
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B C C D --soft B C D
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--mixed B D D
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--hard D D D
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--merge (disallowed)
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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B C C C --soft B C C
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--mixed B C C
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--hard C C C
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--merge B C C
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--keep B C C
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"reset --merge" is meant to be used when resetting out of a conflicted
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merge. Any mergy operation guarantees that the work tree file that is
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involved in the merge does not have local change wrt the index before
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it starts, and that it writes the result out to the work tree. So if
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we see some difference between the index and the target and also
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between the index and the work tree, then it means that we are not
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resetting out from a state that a mergy operation left after failing
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with a conflict. That is why we disallow --merge option in this case.
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"reset --keep" is meant to be used when removing some of the last
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commits in the current branch while keeping changes in the working
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tree. If there could be conflicts between the changes in the commit we
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want to remove and the changes in the working tree we want to keep,
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the reset is disallowed. That's why it is disallowed if there are both
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changes between the working tree and HEAD, and between HEAD and the
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target. To be safe, it is also disallowed when there are unmerged
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entries.
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The following tables show what happens when there are unmerged
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entries:
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working index HEAD target working index HEAD
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----------------------------------------------------
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X U A B --soft (disallowed)
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--mixed X B B
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--hard B B B
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--merge B B B
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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X U A A --soft (disallowed)
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--mixed X A A
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--hard A A A
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--merge A A A
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--keep (disallowed)
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X means any state and U means an unmerged index.
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Examples
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EXAMPLES
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--------
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Undo a commit and redo::
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@ -383,6 +277,114 @@ $ git reset --keep start <3>
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<3> But you can use "reset --keep" to remove the unwanted commit after
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you switched to "branch2".
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DISCUSSION
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----------
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The tables below show what happens when running:
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----------
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git reset --option target
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----------
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to reset the HEAD to another commit (`target`) with the different
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reset options depending on the state of the files.
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In these tables, A, B, C and D are some different states of a
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file. For example, the first line of the first table means that if a
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file is in state A in the working tree, in state B in the index, in
|
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state C in HEAD and in state D in the target, then "git reset --soft
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target" will put the file in state A in the working tree, in state B
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in the index and in state D in HEAD.
|
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|
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working index HEAD target working index HEAD
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----------------------------------------------------
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A B C D --soft A B D
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--mixed A D D
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--hard D D D
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--merge (disallowed)
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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A B C C --soft A B C
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--mixed A C C
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--hard C C C
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--merge (disallowed)
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--keep A C C
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working index HEAD target working index HEAD
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----------------------------------------------------
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B B C D --soft B B D
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--mixed B D D
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--hard D D D
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--merge D D D
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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B B C C --soft B B C
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--mixed B C C
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--hard C C C
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--merge C C C
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--keep B C C
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working index HEAD target working index HEAD
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----------------------------------------------------
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B C C D --soft B C D
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--mixed B D D
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--hard D D D
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--merge (disallowed)
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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B C C C --soft B C C
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--mixed B C C
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--hard C C C
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--merge B C C
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--keep B C C
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"reset --merge" is meant to be used when resetting out of a conflicted
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merge. Any mergy operation guarantees that the work tree file that is
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involved in the merge does not have local change wrt the index before
|
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it starts, and that it writes the result out to the work tree. So if
|
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we see some difference between the index and the target and also
|
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between the index and the work tree, then it means that we are not
|
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resetting out from a state that a mergy operation left after failing
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with a conflict. That is why we disallow --merge option in this case.
|
||||
|
||||
"reset --keep" is meant to be used when removing some of the last
|
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commits in the current branch while keeping changes in the working
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tree. If there could be conflicts between the changes in the commit we
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want to remove and the changes in the working tree we want to keep,
|
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the reset is disallowed. That's why it is disallowed if there are both
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changes between the working tree and HEAD, and between HEAD and the
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target. To be safe, it is also disallowed when there are unmerged
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entries.
|
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|
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The following tables show what happens when there are unmerged
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entries:
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|
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working index HEAD target working index HEAD
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----------------------------------------------------
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X U A B --soft (disallowed)
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--mixed X B B
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--hard B B B
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--merge B B B
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--keep (disallowed)
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working index HEAD target working index HEAD
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----------------------------------------------------
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X U A A --soft (disallowed)
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--mixed X A A
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--hard A A A
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--merge A A A
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--keep (disallowed)
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X means any state and U means an unmerged index.
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Author
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------
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Written by Junio C Hamano <gitster@pobox.com> and Linus Torvalds <torvalds@osdl.org>
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