After "git reset" moves the HEAD around, it reports which commit
you are on, which gives the user a warm fuzzy feeling of
assurance. Give the same assurance from git-checkout when
moving the detached HEAD around.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Change the feedback message if doing 'git checkout foo' when already on
branch "foo".
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch adds support for a dummy remote '.' to avoid having
to declare a fake remote like
[remote "local"]
url = .
fetch = refs/heads/*:refs/heads/*
Such a builtin remote simplifies the operation of "git-fetch",
which will populate FETCH_HEAD but will not pretend that two
repositories are in use, will not create a thin pack, and will
not perform any useless remapping of names. The speed
improvement is around 20%, and it should improve more if
"git-fetch" is converted to a builtin.
To this end, git-parse-remote is grown with a new kind of
remote, 'builtin'. In git-fetch.sh, we treat the builtin remote
specially in that it needs no pack/store operations. In fact,
doing git-fetch on a builtin remote will simply populate
FETCH_HEAD appropriately.
The patch also improves of the --track/--no-track support,
extending it so that branch.<name>.remote items referring '.'
can be created. Finally, it fixes a typo in git-checkout.sh.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The symbolic notation of the fork point can contain whitespaces (e.g.
"git checkout -m 'HEAD@{9 hours ago}'"). Quote strings properly
when using eval to prepare GITHEAD_$new
Signed-off-by: Junio C Hamano <junkio@cox.net>
In order to track and build on top of a branch 'topic' you track from
your upstream repository, you often would end up doing this sequence:
git checkout -b mytopic origin/topic
git config --add branch.mytopic.remote origin
git config --add branch.mytopic.merge refs/heads/topic
This would first fork your own 'mytopic' branch from the 'topic'
branch you track from the 'origin' repository; then it would set up two
configuration variables so that 'git pull' without parameters does the
right thing while you are on your own 'mytopic' branch.
This commit adds a --track option to git-branch, so that "git
branch --track mytopic origin/topic" performs the latter two actions
when creating your 'mytopic' branch.
If the configuration variable branch.autosetupmerge is set to true, you
do not have to pass the --track option explicitly; further patches in
this series allow setting the variable with a "git remote add" option.
The configuration variable is off by default, and there is a --no-track
option to countermand it even if the variable is set.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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>
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>
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>
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>
* master: (50 commits)
GIT v1.5.0-rc3
Do not use hardcoded path to xhmtl.xsl to generate user's manual
git main documentation: point at the user's manual.
t9200: do not test -x bit if the filesystem does not support it.
t9200: Re-code non-ascii path test in UTF-8
Update git-cat-file documentation
Documentation: "git-checkout <tree> <path>" takes any tree-ish
Improved error message from git-rebase
Fix git-update-index to work with relative pathnames.
Escape --upload-pack from expr.
Don't coredump on bad refs in update-server-info.
tone down the detached head warning
Fix git-tag -u
user-manual: todo's
user-manual: point to README for gitweb information
blameview: Use git-cat-file to read the file content.
git-fetch: Allow fetching the remote HEAD
git-send-email: remove debugging output.
Add a missing fork() error check.
Two small typofixes.
...
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>
* np/dreflog:
add reflog when moving HEAD to a new branch
create_symref(): do not assume pathname from git_path() persists long enough
add logref support to git-symbolic-ref
move create_symref() past log_ref_write()
add reflog entries for HEAD when detached
enable separate reflog for HEAD
lock_ref_sha1_basic(): remember the original name of a ref when resolving it
make reflog filename independent from struct ref_lock
Compute accurate distances in git-describe before output.
Update describe documentation.
Teach git-describe to display distances from tags.
git-blame --porcelain: quote filename in c-style when needed.
git-blame --incremental
Don't force everybody to call setup_ident().
git-log -g --pretty=oneline should display the reflog message
Document --check option to git diff.
Allow the tag signing key to be specified in the config file
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>
* jc/fetch-auto-keep:
Consolidate {receive,fetch}.unpackLimit
fetch-pack: remove --keep-auto and make it the default.
Allow fetch-pack to decide keeping the fetched pack without exploding
Refactor the pack header reading function out of receive-pack.c
Allow default core.logallrefupdates to be overridden with template's config
ls-remote and clone: accept --upload-pack=<path> as well.
rename --exec to --upload-pack for fetch-pack and peek-remote
Documentation: --amend cannot be combined with -c/-C/-F.
Documentation/config.txt: Correct info about subsection name
git-daemon documentation on enabling services.
reflog inspection: introduce shortcut "-g"
annotate: use pager
t/t1300-repo-config.sh: value continued on next line
git-checkout -m: fix merge case
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>
* master: (27 commits)
sanitize content of README file
git-format-patch: do not crash with format.headers without value.
Introduce 'git-format-patch --suffix=.patch'
Documentation/glossary.txt: describe remotes/ tracking and packed-refs
Documentation/glossary.txt: unpacked objects are loose.
Documentation: describe shallow repository
Make a short-and-sweet "git-add -i" synonym for "git-add --interactive"
Documentation: detached HEAD
Documentation: a few spelling fixes
Documentation/git-sh-setup.txt: programmer's docs
Documentation/git-whatchanged.txt: show -<n> instead of --max-count.
Documentation/git-status.txt: mention color configuration
Documentation/git-tar-tree.txt: default umask is now 002
Documentation/git-tools.txt: mention tig and refer to wiki
Documentation/git-tag: the command can be used to also verify a tag.
Documentation/SubmittingPatches: Gnus tips
git-commit: document log message formatting convention
cache.h; fix a couple of prototypes
Document where configuration files are in config.txt
Use merge-recursive in git-checkout -m (branch switching)
...
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>
* 'jc/subdir' (early part):
Use cd_to_toplevel in scripts that implement it by hand.
Define cd_to_toplevel shell function in git-sh-setup
Make git-prune-packed a bit more chatty.
glossary typofix
use 'init' instead of 'init-db' for shipped docs and tools
Explain "Not a git repository: '.git'".
merge-recursive: do not report the resulting tree object name
git-revert: Fix die before git-sh-setup defines it.
fix documentation for git-commit --no-verify
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>
* 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
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>
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>
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>
* jc/detached-head:
git-checkout: fix branch name output from the command
git-checkout: safety when coming back from the detached HEAD state.
git-checkout: rewording comments regarding detached HEAD.
git-checkout: do not warn detaching HEAD when it is already detached.
Detached HEAD (experimental)
git-branch: show detached HEAD
git-status: show detached HEAD
cvsimport: cleanup temporary cvsps file
cvsimport: document -S and -L options
cvsimport: skip commits that are too recent (option and documentation)
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>
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>
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>
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>
* sb/merge-friendly:
Display 'theirs' branch name when possible in merge.
Use extended SHA1 syntax in merge-recursive conflicts.
gitweb: Allow search to be disabled from the config file.
gitweb: Require a minimum of two character for the search text.
gitweb: Use rev-list pattern search options.
checkout: make the message about the need for a new branch a bit clearer
gitweb: optimize git_summary.
gitweb: optimize git_shortlog_body.
gitweb: optimize git_get_last_activity.
gitweb: Add missing show '...' links change.
Make git-show-branch options similar to git-branch.
Keep "git --git-dir" from causing a bus error.
git-svn: enable common fetch/commit options for dcommit
vc-git: Ignore errors caused by a non-existent directory in vc-git-registered.
Remove NO_ACCURATE_DIFF options from build systems
git-tag: lose exit after die
Really fix headers for __FreeBSD__
Do not support "partial URL shorthand" anymore.
default pull: forget about "newbie protection" for now.
merge and reset: adjust for "reset --hard" messages
* jc/read-tree-ignore:
read-tree: document --exclude-per-directory
Loosen "working file will be lost" check in Porcelain-ish
read-tree: further loosen "working file will be lost" check.
Conflicts:
git-merge.sh
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>
The idea and the logic are identical to what "checkout -m" does
when switching the branches. Instead of refusing the two-way
merge, perform the three-way merge between the old head, the
working tree and the new head, and leave the (potentially
conflicted) merge result in the working tree. When the resulting
conflict were too much to handle for the user, there is no easy
way to get that back, so they are stashed away in $GIT_DIR/LOCAL_DIFF
file. We do the same for "git checkout -m".
If this turns out to be a sane thing to do, we probably should
make the common logic between "checkout -m" and this into a
built-in command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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>
* 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
...
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>
