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2007-02-03Let git-checkout always drop any detached headLibravatar Nicolas Pitre1-15/+2
We used to refuse leaving a detached HEAD when it wasn't matching an existing ref so not to lose any commit that might have been performed while not on any branch (unless -f was provided). But this protection was completely bogus since it was still possible to move to HEAD^ while still remaining detached but losing the last commit anyway if there was one. Now that we have a proper reflog for HEAD it is best to simply remove that bogus (and admitedly annoying) protection and simply display the last HEAD position instead. If one wants to recover a lost detached state then it can be retrieved from the HEAD reflog. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-03Merge branch 'master' into np/dreflogLibravatar Junio C Hamano1-9/+20
This is to resolve conflicts early in preparation for possible inclusion of "reflog on detached HEAD" series by Nico, as having it in 1.5.0 would really help us remove confusion between detached and attached states. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-01add a quiet option to git-checkoutLibravatar Nicolas Pitre1-9/+14
Those new messages are certainly nice, but there might be cases where they are simply unwelcome, like when git-commit is used within scripts. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-01reword the detached head message a little againLibravatar Nicolas Pitre1-1/+1
Seems clearer this way, to me at least. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-01detached HEAD -- finishing touchesLibravatar Junio C Hamano1-2/+8
This updates "git-checkout" to report which branch you are switching to. Especially for people who do not use __git_ps1 from contrib/completion/git-completion.bash this would give a friendlier feedback of what is going on, and should make the reminder message much less scary. Here is a sample session (the prompt tells which branch I am on). * I have some local modification and realize that the change deserves to be on its own new topic branch. [git.git (master)]$ git diff --stat git-checkout.sh | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) * So I switch to a new branch. I get a listing of local modifications and assuring "Switched to a new branch" message. [git.git (master)]$ git checkout -b jc/checkout M git-checkout.sh Switched to a new branch "jc/checkout" * If I switch back to "master", I get essentially the same. [git.git (jc/checkout)]$ git checkout master M git-checkout.sh Switched to branch "master" * Detaching head would say which commit I am at and reminds me that I am not on any branch (not that I would detach my HEAD while keeping precious local changes around in any real-world workflow -- this is just a sample session). [git.git (master)]$ git checkout master^ M git-checkout.sh Note: you are not on any branch and are at commit "master^" If you want to create a new branch from this checkout, you may do so (now or later) by using -b with the checkout command again. Example: git checkout -b <new_branch_name> * Coming back to an attached state can lose the detached HEAD, so I get warned and stopped. [git.git]$ git checkout master You are not on any branch and switching to branch 'master' may lose your changes. At this point, you can do one of two things: (1) Decide it is Ok and say 'git checkout -f master'; (2) Start a new branch from the current commit, by saying 'git checkout -b <branch-name>'. Leaving your HEAD detached; not switching to branch 'master'. * Moving around while my HEAD is detached is Ok. I still get the list of local modifications. [git.git]$ git checkout master^0 M git-checkout.sh * The previous step that switched to the tip commit is an obscure but useful trick. My HEAD is still detached but now it is pointed at by an existing ref, so I can come back safely. [git.git]$ git checkout master M git-checkout.sh Switched to branch "master" * And we are back on the "master" branch. [git.git (master)]$ exit Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-31tone down the detached head warningLibravatar Nicolas Pitre1-3/+3
This is not meant to frighten people or even to suggest they might be doing something wrong, but rather to notify them of a state change and provide a likely option in the case this state was entered by mistake. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-28add reflog when moving HEAD to a new branchLibravatar Nicolas Pitre1-1/+1
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-28add reflog entries for HEAD when detachedLibravatar Nicolas Pitre1-2/+3
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-26fix suggested branch creation command when detaching headLibravatar Nicolas Pitre1-3/+3
Doing: $ git checkout HEAD^ Generates the following message: |warning: you are not on ANY branch anymore. |If you meant to create a new branch from the commit, you need -b to |associate a new branch with the wanted checkout. Example: | git checkout -b <new_branch_name> HEAD^ Of course if the user does as told at this point the created branch won't be located at the expected commit. Reword this message a bit to avoid such confusion. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-23git-checkout -m: fix merge caseLibravatar Junio C Hamano1-10/+5
Commit c1a4278e switched the "merging checkout" implementation from 3-way read-tree to merge-recursive, but forgot that merge-recursive will signal an unmerged state with its own exit status code. This prevented the clean-up phase (paths cleanly merged should not be updated in the index) from running. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-16Use merge-recursive in git-checkout -m (branch switching)Libravatar Junio C Hamano1-2/+3
This allows "git checkout -m <other-branch>" to notice renames and carry local changes in the working tree forward. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-12Use cd_to_toplevel in scripts that implement it by hand.Libravatar Junio C Hamano1-5/+1
This converts scripts that do "cd $(rev-parse --show-cdup)" by hand to use cd_to_toplevel. I think git-fetch does not have to go to the toplevel, but that should be dealt with in a separate patch. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-11Merge branch 'jc/bare'Libravatar Junio C Hamano1-0/+1
* jc/bare: Disallow working directory commands in a bare repository. git-fetch: allow updating the current branch in a bare repository. Introduce is_bare_repository() and core.bare configuration variable Move initialization of log_all_ref_updates
2007-01-10Disallow working directory commands in a bare repository.Libravatar Shawn O. Pearce1-0/+1
If the user tries to run a porcelainish command which requires a working directory in a bare repository they may get unexpected results which are difficult to predict and may differ from command to command. Instead we should detect that the current repository is a bare repository and refuse to run the command there, as there is no working directory associated with it. [jc: updated Shawn's original somewhat -- bugs are mine.] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-09git-checkout: handle local changes sanely when detaching HEADLibravatar Junio C Hamano1-11/+25
When switching branches, we usually first try read-tree to make sure that we do not lose the local changes and then updated the HEAD using update-ref. However, we detached and updated HEAD before these checks, which was quite bad in a repository with local changes. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-09git-checkout: safety check for detached HEAD checks existing refsLibravatar Junio C Hamano1-7/+7
Checking for reachability from refs does not help much if the state we are currently on is somewhere in the middle. We will lose where we were. So this makes sureh that HEAD is something directly pointed at by one of the existing refs (most likely a tag for a user who has been "sightseeing"). Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08git-checkout: fix branch name output from the commandLibravatar Junio C Hamano1-1/+1
When switching branches with "git checkout", we internally did $arg^0 (aka $arg^{commit}) suffix but there was no need to. The improvement is easily visible in the change to an existing test t/3200-branch.sh in this commit; it was expecting rather ugly message. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08git-checkout: safety when coming back from the detached HEAD state.Libravatar Junio C Hamano1-0/+18
After making commits in the detached HEAD state, if you run "git checkout" to switch to an existing branch, you will lose your work. Make sure the switched-to branch is a fast-forward of the current HEAD, or require -f when switching. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08git-checkout: rewording comments regarding detached HEAD.Libravatar Junio C Hamano1-9/+12
We used to say "you are not on a branch" before the initial commit. This is incorrect -- the user is on a branch yet to be born, but its name has been already determined. Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08git-checkout: do not warn detaching HEAD when it is already detached.Libravatar Junio C Hamano1-3/+8
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08Detached HEAD (experimental)Libravatar Junio C Hamano1-5/+11
This allows "git checkout v1.4.3" to dissociate the HEAD of repository from any branch. After this point, "git branch" starts reporting that you are not on any branch. You can go back to an existing branch by saying "git checkout master", for example. This is still experimental. While I think it makes sense to allow commits on top of detached HEAD, it is rather dangerous unless you are careful in the current form. Next "git checkout master" will obviously lose what you have done, so we might want to require "git checkout -f" out of a detached HEAD if we find that the HEAD commit is not an ancestor of any other branches. There is no such safety valve implemented right now. On the other hand, the reason the user did not start the ad-hoc work on a new branch with "git checkout -b" was probably because the work was of a throw-away nature, so the convenience of not having that safety valve might be even better. The user, after accumulating some commits on top of a detached HEAD, can always create a new branch with "git checkout -b" not to lose useful work done while the HEAD was detached. We'll see. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-22checkout: make the message about the need for a new branch a bit clearerLibravatar Nicolas Pitre1-2/+5
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-05Loosen "working file will be lost" check in Porcelain-ishLibravatar Junio C Hamano1-2/+3
This uses the previous update to read-tree in Porcelain-ish commands "git checkout" and "git merge" to loosen the check when switching branches. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-11-15git-checkout: allow pathspec to recover lost working tree directoryLibravatar Junio C Hamano1-1/+5
It is often wanted on the #git channel that this were to work to recover removed directory: rm -fr Documentation git checkout -- Documentation git checkout HEAD -- Documentation ;# alternatively Now it does. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-11-15git-checkout: do not allow -f and -m at the same time.Libravatar Junio C Hamano1-0/+5
Instead of silently ignoring one over the other, complain on this incompatible combination. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-27Merge branch 'master' into lj/refsLibravatar Junio C Hamano1-1/+8
* master: (72 commits) runstatus: do not recurse into subdirectories if not needed grep: fix --fixed-strings combined with expression. grep: free expressions and patterns when done. Corrected copy-and-paste thinko in ignore executable bit test case. An illustration of rev-list --parents --pretty=raw Allow git-checkout when on a non-existant branch. gitweb: Decode long title for link tooltips git-svn: Fix fetch --no-ignore-externals with GIT_SVN_NO_LIB=1 Ignore executable bit when adding files if filemode=0. Remove empty ref directories that prevent creating a ref. Use const for interpolate arguments git-archive: update documentation Deprecate merge-recursive.py gitweb: fix over-eager application of esc_html(). Allow '(no author)' in git-svn's authors file. Allow 'svn fetch' on '(no date)' revisions in Subversion. git-repack: allow git-repack to run in subdirectory Remove upload-tar and make git-tar-tree a thin wrapper to git-archive git-tar-tree: Move code for git-archive --format=tar to archive-tar.c git-tar-tree: Remove duplicate git_config() call ...
2006-09-27Allow git-checkout when on a non-existant branch.Libravatar Shawn Pearce1-1/+8
I've seen some users get into situtations where their HEAD symbolic-ref is pointing at a non-existant ref. (Sometimes this happens during clone when the remote repository lacks a 'master' branch.) If this happens the user is unable to use git-checkout to switch branches as there is no prior commit to merge from. So instead of giving the user low-level errors about how HEAD can't be resolved and how not a single revision was given change the type of checkout to be a force and go through with the user's request anyway. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-16Teach "git checkout" to use git-show-refLibravatar Linus Torvalds1-2/+3
That way, it doesn't care how the refs are stored any more Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-31git-checkout: allow "checkout HEAD -- path"Libravatar Junio C Hamano1-0/+4
Even though -- is redundant in this case, we should allow it to prevent confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-28checkout -m: fix read-tree invocationLibravatar Junio C Hamano1-2/+1
When we updated "read-tree -m -u" to be careful about not removing untracked working tree files, we broke "checkout -m" to switch between branches. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-20checkout -f: do not leave untracked working tree files.Libravatar Junio C Hamano1-2/+1
Earlier we did not consider untracked working tree files "precious", but we have always considered them fair game to clobber. These days, branch switching by read-tree is more careful and tries to protect untracked working tree files. This caused the following workflow to stop working: git checkout one-branch-with-file-F git checkout -f another-without-file-F git pull . one-branch-with-file-F Because the second checkout leaves F from the previous state as untracked file in the working tree, the merge would fail, trying to protect F from being clobbered. This changes "git checkout -f" to remove working tree files that are known to git in the switched-from state but do not exist in the switched-to state, borrowing the same logic from "reset --hard". Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-24Test that git-branch -l works.Libravatar Shawn Pearce1-2/+2
If the user supplies -l to git-branch when creating a new branch then the new branch's log should be created automatically and the branch creation should be logged in that log. Further if a branch is being deleted and it had a log then also verify that the log was deleted. Test git-checkout -b foo -l for creating a new branch foo with a log and checking out that branch. Fixed git-checkout -b foo -l as the branch variable name was incorrect in the script. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-19Enable ref log creation in git checkout -b.Libravatar Shawn Pearce1-4/+15
Switch git checkout -b to use git-update-ref rather than echo and a shell I/O redirection. This is more in line with typical GIT commands and allows -b to be logged according to the normal ref logging rules. Added -l option to allow users to create the ref log at the same time as creating a branch. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09checkout: use --aggressive when running a 3-way merge (-m).Libravatar Junio C Hamano1-1/+1
After doing an in-index 3-way merge, we always do the stock "merge-index merge-one-file" without doing anything fancy; use of --aggressive helps performance quite a bit. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-15More useful/hinting error messages in git-checkoutLibravatar Josef Weidendorfer1-3/+10
Signed-off-by: Josef Weidendorfer <Josef.Weidendorfer@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-14checkout: fix dirty-file display.Libravatar Junio C Hamano1-2/+4
When we refused to switch branches, we incorrectly showed differences from the branch we would have switched to. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-12git-commit: show dirtiness including index.Libravatar Junio C Hamano1-1/+2
Earlier, when we switched a branch we used diff-files to show paths that are dirty in the working tree. But we allow switching branches with updated index ("read-tree -m -u $old $new" works that way), and only showing paths that have differences in the working tree but not paths that are different in index was confusing. This shows both as modified from the top commit of the branch we just have switched to. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-14[PATCH] checkout: show dirty state upon switching branches.Libravatar Junio C Hamano1-0/+3
This shows your working file state when you switch branches. As a side effect, "git checkout" without any branch name (i.e. stay on the current branch) becomes a more concise shorthand for the "git status" command. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-13checkout: merge local modifications while switching branches.Libravatar Junio C Hamano1-22/+38
* Instead of going interactive, introduce a command line switch '-m' to allow merging changes when normal two-way merge by read-tree prevents branch switching. * Leave the unmerged stages intact if automerge fails, but reset index entries of cleanly merged paths to that of the new branch, so that "git diff" (not "git diff HEAD") would show the local modifications. * Swap the order of trees in read-tree three-way merge used in the fallback, so that `git diff` to show the conflicts become more natural. * Describe the new option and give more examples in the documentation. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-13checkout: automerge local changes while switching branches.Libravatar Junio C Hamano1-1/+27
When switching branches, if the working tree has a local modification at paths that are different between current and new branches, we refused the operation saying "cannot merge." This attempts to do an automerge for such paths. This is still experimental. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-23Adjust to ls-tree --full-name when run from a subdirectory.Libravatar Junio C Hamano1-1/+1
A proposed change to show cwd relative paths by default from ls-tree when run from a subdirectory means we would need to give --full-name option to it. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-22checkout: sometimes work from a subdirectory.Libravatar Junio C Hamano1-0/+9
git-checkout does two very different things, and what they should do when run from subdirectory are quite different. It does not make any sense to run the one that switches the current head from anywhere other than the toplevel: git-checkout [-f] <branch> git-checkout [-b <branch>] <committish> We could of course chdir to top and do the whole-tree checkout in git-checkout, but the point is the operation does not make sense on a partial tree. The whole tree is checked out. The other form is to update the index file and working tree file selectively: git-checkout <treeish> <file>... ;# out of tree to index and file git-checkout -- <file>... ;# out of index to file This form _does_ make sense to run from subdirectory; and I myself often wish we supported this. So here is a patch to do both. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-16Comment fixes.Libravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-14Trivial usage string clean-upLibravatar freku045@student.liu.se1-4/+2
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-25git-sh-setup: die if outside git repository.Libravatar Junio C Hamano1-1/+1
Now all the users of this script detect its exit status and die, complaining that it is outside git repository. So move the code that dies from all callers to git-sh-setup script. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-23Teach update-index to read from ls-tree.Libravatar Junio C Hamano1-1/+0
git-update-index --index-info can almost be usable to read from ls-tree output to update the index (and not the working tree file) to HEAD commit, but not quite. It was designed to read from git-apply --index-info output, and does not want " blob " in ls-tree output. Accept that as well. This lets us update "git-checkout <ent> <path>" that used to filter the extra " blob " string out. Noted by Luben. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-02Do not fail on hierarchical branch names.Libravatar Junio C Hamano1-1/+3
"git-checkout -b frotz/nitfol master" failed to create $GIT_DIR/refs/heads/frotz/nitfol but went ahead and updated $GIT_DIR/HEAD to point at it, resulting in a corrupt repository. Exit when we cannot create the new branch with an error status. While we are at it, there is no reason to forbid subdirectories in refs/heads, so make sure we handle that correctly. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-30Add usage statement to git-checkout.shLibravatar Chris Shoemaker1-0/+7
Signed-off-by: Chris Shoemaker <c.shoemaker@cox.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-18git-checkout: revert specific paths to either index or a given tree-ish.Libravatar Junio C Hamano1-15/+64
When extra paths arguments are given, git-checkout reverts only those paths to either the version recorded in the index or the version recorded in the given tree-ish. This has been on the TODO list for quite a while. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-15git-check-ref-format: reject funny ref names.Libravatar Junio C Hamano1-0/+2
Update check_ref_format() function to reject ref names that: * has a path component that begins with a ".", or * has a double dots "..", or * has ASCII control character, "~", "^", ":" or SP, anywhere, or * ends with a "/". Use it in 'git-checkout -b', 'git-branch', and 'git-tag' to make sure that newly created refs are well-formed. Signed-off-by: Junio C Hamano <junkio@cox.net>