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Diffstat (limited to 'Documentation/git-reset.txt')
| -rw-r--r-- | Documentation/git-reset.txt | 78 |
1 files changed, 48 insertions, 30 deletions
diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt index b04d129..fd72976 100644 --- a/Documentation/git-reset.txt +++ b/Documentation/git-reset.txt @@ -15,17 +15,24 @@ SYNOPSIS DESCRIPTION ----------- In the first and second form, copy entries from <commit> to the index. -In the third form, set the current branch to <commit>, optionally -modifying index and worktree to match. The <commit> defaults to HEAD +In the third form, set the current branch head (HEAD) to <commit>, optionally +modifying index and working tree to match. The <commit> defaults to HEAD in all forms. 'git reset' [-q] [<commit>] [--] <paths>...:: This form resets the index entries for all <paths> to their - state at the <commit>. (It does not affect the worktree, nor + state at <commit>. (It does not affect the working tree, nor the current branch.) + This means that `git reset <paths>` is the opposite of `git add <paths>`. ++ +After running `git reset <paths>` to update the index entry, you can +use linkgit:git-checkout[1] to check the contents out of the index to +the working tree. +Alternatively, using linkgit:git-checkout[1] and specifying a commit, you +can copy the contents of a path out of a commit to the index and to the +working tree in one go. 'git reset' --patch|-p [<commit>] [--] [<paths>...]:: Interactively select hunks in the difference between the index @@ -36,16 +43,17 @@ This means that `git reset -p` is the opposite of `git add -p` (see linkgit:git-add[1]). 'git reset' [--<mode>] [<commit>]:: - This form points the current branch to <commit> and then - updates index and working tree according to <mode>, which must - be one of the following: + This form resets the current branch head to <commit> and + possibly updates the index (resetting it to the tree of <commit>) and + the working tree depending on <mode>, which + must be one of the following: + -- --soft:: - Does not touch the index file nor the working tree at all, but - requires them to be in a good order. This leaves all your changed - files "Changes to be committed", as 'git status' would - put it. + Does not touch the index file nor the working tree at all (but + resets the head to <commit>, just like all modes do). This leaves + all your changed files "Changes to be committed", as 'git status' + would put it. --mixed:: Resets the index but not the working tree (i.e., the changed files @@ -53,22 +61,30 @@ linkgit:git-add[1]). been updated. This is the default action. --hard:: - Matches the working tree and index to that of the tree being - switched to. Any changes to tracked files in the working tree - since <commit> are lost. + Resets the index and working tree. Any changes to tracked files in the + working tree since <commit> are discarded. --merge:: - Resets the index to match the tree recorded by the named commit, - and updates the files that are different between the named commit - and the current commit in the working tree. + Resets the index and updates the files in the working tree that are + different between <commit> and HEAD, but keeps those which are + different between the index and working tree (i.e. which have changes + which have not been added). + If a file that is different between <commit> and the index has unstaged + changes, reset is aborted. ++ +In other words, --merge does something like a 'git read-tree -u -m <commit>', +but carries forward unmerged index entries. --keep:: - Reset the index to the given commit, keeping local changes in - the working tree since the current commit, while updating - working tree files without local changes to what appears in - the given commit. If a file that is different between the - current commit and the given commit has local changes, reset - is aborted. + Resets the index, updates files in the working tree that are + different between <commit> and HEAD, but keeps those + which are different between HEAD and the working tree (i.e. + which have local changes). + If a file that is different between <commit> and HEAD has local changes, + reset is aborted. ++ +In other words, --keep does a 2-way merge between <commit> and HEAD followed by +'git reset --mixed <commit>'. -- If you want to undo a commit other than the latest on a branch, @@ -184,7 +200,7 @@ tip of the current branch in ORIG_HEAD, so resetting hard to it brings your index file and the working tree back to that state, and resets the tip of the branch to that commit. -Undo a merge or pull inside a dirty work tree:: +Undo a merge or pull inside a dirty working tree:: + ------------ $ git pull <1> @@ -256,8 +272,8 @@ Keep changes in working tree while discarding some previous commits:: Suppose you are working on something and you commit it, and then you continue working a bit more, but now you think that what you have in your working tree should be in another branch that has nothing to do -with what you commited previously. You can start a new branch and -reset it while keeping the changes in your work tree. +with what you committed previously. You can start a new branch and +reset it while keeping the changes in your working tree. + ------------ $ git tag start @@ -294,8 +310,10 @@ In these tables, A, B, C and D are some different states of a file. For example, the first line of the first table means that if a file is in state A in the working tree, in state B in the index, in state C in HEAD and in state D in the target, then "git reset --soft -target" will put the file in state A in the working tree, in state B -in the index and in state D in HEAD. +target" will leave the file in the working tree in state A and in the +index in state B. It resets (i.e. moves) the HEAD (i.e. the tip of +the current branch, if you are on one) to "target" (which has the file +in state D). working index HEAD target working index HEAD ---------------------------------------------------- @@ -346,11 +364,11 @@ in the index and in state D in HEAD. --keep B C C "reset --merge" is meant to be used when resetting out of a conflicted -merge. Any mergy operation guarantees that the work tree file that is +merge. Any mergy operation guarantees that the working tree file that is involved in the merge does not have local change wrt the index before -it starts, and that it writes the result out to the work tree. So if +it starts, and that it writes the result out to the working tree. So if we see some difference between the index and the target and also -between the index and the work tree, then it means that we are not +between the index and the working tree, then it means that we are not resetting out from a state that a mergy operation left after failing with a conflict. That is why we disallow --merge option in this case. |