Now that "already exists" errors are given only when a push tries to
update an existing ref in refs/tags/ hierarchy, we can say "the
tag", instead of "the destination reference", and that is far easier
to understand.
Pointed out by Chris Rorvick.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we push to update an existing ref, if:
* the object at the tip of the remote is not a commit; or
* the object we are pushing is not a commit,
it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge". We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.
If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged. In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time. And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage. As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.
In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.
Introduce new rejection reasons and reword the messages
appropriately.
[jc: with help by Peff on message details]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
First compute the reason why this push would fail if done without
"--force", and then fail it by assigning that reason when the push
was not forced (or if there is no reason to require force, allow it
to succeed).
Record the fact that the push was forced in the forced_update field
only when the push would have failed without the option.
The code becomes shorter, less repetitive and easier to read this
way, especially given that the set of rejection reasons will be
extended in a later patch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "nonfastforward" and "update" fields are only used while
deciding what value to assign to the "status" locally in a single
function. Remove them from the "struct ref".
The "requires_force" field is not used to decide if the proposed
update requires a --force option to succeed, or to record such a
decision made elsewhere. It is used by status reporting code that
the particular update was "forced". Rename it to "forced_update",
and move the code to assign to it around to further clarify how it
is used and what it is used for.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When pushing to update a branch with a commit that is not a
descendant of the commit at the tip, a wrong message "already
exists" was given, instead of the correct "non-fast-forward", if we
do not have the object sitting in the destination repository at the
tip of the ref we are updating.
The primary cause of the bug is that the check in a new helper
function is_forwardable() assumed both old and new objects are
available and can be checked, which is not always the case.
The way the caller uses the result of this function is also wrong.
If the helper says "we do not want to let this push go through", the
caller unconditionally translates it into "we blocked it because the
destination already exists", which is not true at all in this case.
Fix this by doing these three things:
* Remove unnecessary not_forwardable from "struct ref"; it is only
used inside set_ref_status_for_push();
* Make "refs/tags/" the only hierarchy that cannot be replaced
without --force;
* Remove the misguided attempt to force that everything that
updates an existing ref has to be a commit outside "refs/tags/"
hierarchy.
The policy last one tried to implement may later be resurrected and
extended to ensure fast-forwardness (defined as "not losing
objects", extending from the traditional "not losing commits from
the resulting history") when objects that are not commit are
involved (e.g. an annotated tag in hierarchies outside refs/tags),
but such a logic belongs to "is this a fast-forward?" check that is
done by ref_newer(); is_forwardable(), which is now removed, was not
the right place to do so.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add 'advice.pushAlreadyExists' option to disable the advice shown when
an update is rejected for a reference that is not allowed to update at
all (verses those that are allowed to fast-forward.)
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'pushNonFastForward' advice config can be used to squelch several
instances of push-related advice. Rename it to 'pushUpdateRejected' to
cover other reject scenarios that are unrelated to fast-forwarding.
Retain the old name for compatibility.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rewrite to remove inter-dependencies amongst the rules.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pushes must already (by default) update to a commit-ish due to the fast-
forward check in set_ref_status_for_push(). But rejecting for not being
a fast-forward suggests the situation can be resolved with a merge.
Flag these updates (i.e., to a blob or a tree) as not forwardable so the
user is presented with more appropriate advice.
While updating *from* a tag object is potentially destructive, updating
*to* a tag is not. Additionally, a push to the refs/tags/ hierarchy is
already excluded from fast-forwarding, and refs/heads/ is protected from
anything but commit objects by a check in write_ref_sha1(). Thus
someone fast-forwarding to a tag is probably not doing so by accident.
Since updating to a tag is benign and unlikely to cause confusion, allow
it in case someone finds the behavior useful.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Do not allow fast-forwarding of references that point to a tag object.
Updating from a tag is potentially destructive since it would likely
leave the tag dangling. Disallowing updates to a tag also makes sense
semantically and is consistent with the behavior of lightweight tags.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
References are allowed to update from one commit-ish to another if the
former is an ancestor of the latter. This behavior is oriented to
branches which are expected to move with commits. Tag references are
expected to be static in a repository, though, thus an update to
something under refs/tags/ should be rejected unless the update is
forced.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a flag for indicating an update to a reference requires force.
Currently the `nonfastforward` flag is used for this when generating the
status message. A separate flag insulates dependent logic from the
details of set_ref_status_for_push().
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the reference exists on the remote and it is not being removed, then
mark as an update. This is in preparation for handling tags (lightweight
and annotated) exceptionally.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Advising the user to fetch and merge only makes sense if the rejected
reference is a branch. If none of the rejections are for branches, just
tell the user the reference already exists.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pass all rejection reasons back from transport_push(). The logic is
simpler and more flexible with regard to providing useful feedback.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Cleans up some leftover bits from an earlier submodule change.
* ph/maint-submodule-status-fix:
submodule status: remove unused orig_* variables
t7407: Fix recursive submodule test
Code cleanups so that libgit.a does not depend on anything in the
builtin/ directory.
* nd/builtin-to-libgit:
fetch-pack: move core code to libgit.a
fetch-pack: remove global (static) configuration variable "args"
send-pack: move core code to libgit.a
Move setup_diff_pager to libgit.a
Move print_commit_list to libgit.a
Move estimate_bisect_steps to libgit.a
Move try_merge_command and checkout_fast_forward to libgit.a
Sometimes curl_multi_timeout() function suggested a wrong timeout
value when there is no file descriptors to wait on and the http
transport ended up sleeping for minutes in select(2) system call.
Detect this and reduce the wait timeout in such a case.
* sz/maint-curl-multi-timeout:
Fix potential hang in https handshake
Cleanups to prepare for mo/cvs-server-updates.
* mo/cvs-server-cleanup:
Use character class for sed expression instead of \s
cvsserver status: provide real sticky info
cvsserver: cvs add: do not expand directory arguments
cvsserver: use whole CVS rev number in-process; don't strip "1." prefix
cvsserver: split up long lines in req_{status,diff,log}
cvsserver: clean up client request handler map comments
cvsserver: remove unused functions _headrev and gethistory
cvsserver update: comment about how we shouldn't remove a user-modified file
cvsserver: add comments about database schema/usage
cvsserver: removed unused sha1Or-k mode from kopts_from_path
cvsserver t9400: add basic 'cvs log' test
"git send-email --compose" can let the user create a non-ascii
cover letter message, but there was not a way to mark it with
appropriate content type before sending it out.
Further updates fix subject quoting.
* km/send-email-compose-encoding:
git-send-email: add rfc2047 quoting for "=?"
git-send-email: introduce quote_subject()
git-send-email: skip RFC2047 quoting for ASCII subjects
git-send-email: use compose-encoding for Subject
git-send-email: introduce compose-encoding
Fixes many rfc2047 quoting issues in the output from format-patch.
* js/format-2047:
format-patch tests: check quoting/encoding in To: and Cc: headers
format-patch: fix rfc2047 address encoding with respect to rfc822 specials
format-patch: make rfc2047 encoding more strict
format-patch: introduce helper function last_line_length()
format-patch: do not wrap rfc2047 encoded headers too late
format-patch: do not wrap non-rfc2047 headers too early
utf8: fix off-by-one wrapping of text
When "update-ref -d --no-deref SYM" tried to delete a symbolic ref
SYM, it incorrectly locked the underlying reference pointed by SYM,
not the symbolic ref itself.
* rs/lock-correct-ref-during-delete:
refs: lock symref that is to be deleted, not its target
Start laying the foundation to build the "wildmatch" after we can
agree on its desired semantics.
* nd/attr-match-optim-more:
attr: more matching optimizations from .gitignore
gitignore: make pattern parsing code a separate function
exclude: split pathname matching code into a separate function
exclude: fix a bug in prefix compare optimization
exclude: split basename matching code into a separate function
exclude: stricten a length check in EXC_FLAG_ENDSWITH case
We long ago hyphenated "remote-tracking branch"; this
catches some new instances added since then.
* mm/maint-doc-remote-tracking:
Documentation: remote tracking branch -> remote-tracking branch
git commit -S, --gpg-sign was mentioned in the program's help message,
but not in the manpage.
This adds an equivalent entry for the option in the manpage.
Signed-off-by: Tom Jones <tom@oxix.org>
Signed-off-by: Jeff King <peff@peff.net>
A symbolic ref refs/heads/SYM was not correctly removed with
"git branch -d SYM"; the command removed the ref pointed by
SYM instead.
* rs/branch-del-symref:
branch: show targets of deleted symrefs, not sha1s
branch: skip commit checks when deleting symref branches
branch: delete symref branch, not its target
branch: factor out delete_branch_config()
branch: factor out check_branch_commit()
Allow an earlier "--short" option on the command line to be
countermanded with the "--long" option for "git status" and "git
commit".
* nd/status-long:
status: add --long output format option
"git grep -e pattern <tree>" asked the attribute system to read
"<tree>:.gitattributes" file in the working tree, which was
nonsense.
* nd/grep-true-path:
grep: stop looking at random places for .gitattributes
Further clean-up to the http codepath that picks up results after
cURL library is done with one request slot.
* jk/maint-http-init-not-in-result-handler:
http: do not set up curl auth after a 401
remote-curl: do not call run_slot repeatedly
"git log -F -E --grep='<ere>'" failed to use the given <ere>
pattern as extended regular expression, and instead looked for the
string literally. The early part of this series is a fix for it;
the latter part teaches log to respect the grep.* configuration.
* jc/grep-pcre-loose-ends:
log: honor grep.* configuration
log --grep: accept --basic-regexp and --perl-regexp
log --grep: use the same helper to set -E/-F options as "git grep"
revisions: initialize revs->grep_filter using grep_init()
grep: move pattern-type bits support to top-level grep.[ch]
grep: move the configuration parsing logic to grep.[ch]
builtin/grep.c: make configuration callback more reusable
If you remove a submodule, in order to keep the repository so that
"git checkout" to an older commit in the superproject history can
resurrect the submodule, the real repository will stay in $GIT_DIR
of the superproject. A later "git submodule add $path" to add a
different submodule at the same path will fail. Diagnose this case
a bit better, and if the user really wants to add an unrelated
submodule at the same path, give the "--name" option to give it a
place in $GIT_DIR of the superproject that does not conflict with
the original submodule.
* jl/submodule-add-by-name:
submodule add: Fail when .git/modules/<name> already exists unless forced
Teach "git submodule add" the --name option
"git rm submodule" cannot blindly remove a submodule directory as
its working tree may have local changes, and worse yet, it may even
have its repository embedded in it. Teach it some special cases
where it is safe to remove a submodule, specifically, when there is
no local changes in the submodule working tree, and its repository
is not embedded in its working tree but is elsewhere and uses the
gitfile mechanism to point at it.
* jl/submodule-rm:
submodule: teach rm to remove submodules unless they contain a git directory
fetch_pack() is used by transport.c, part of libgit.a while it stays
in builtin/fetch-pack.c. Move it to fetch-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
When renaming orig_args to orig_flags in 98dbe63d (submodule: only
preserve flags across recursive status/update invocations) the call site
of the recursive cmd_status was forgotten. At that place orig_args is
still passed into the recursion, which is always empty since then. This
did not break anything because the orig_flags logic is not needed at all
when a function from the submodule script is called with eval, as that
inherits all the variables set by the option parsing done in the first
level of the recursion.
Now that we know that orig_flags and orig_args aren't needed at all,
let's just remove them from cmd_status().
Thanks-to: Phil Hord <hordp@cisco.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jeff King <peff@peff.net>
A test in t7404-submodule-foreach purports to test that
the --cached flag is properly noticed by --recursive calls
to the foreach command as it descends into nested
submodules. However, the test really does not perform this
test since the change it looks for is in a top-level
submodule handled by the first invocation of the command.
To properly test for the flag being passed to recursive
invocations, the change must be buried deeper in the
hierarchy.
Move the change one level deeper so it properly verifies
the recursive machinery of the 'git submodule status'
command.
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Jeff King <peff@peff.net>
This helps removes the hack in fetch_pack() that copies my_args to args.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Junio C Hamano