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Fix a formatting error introduced in my recently landed
fe802bd21e ("push doc: correct lies about how push refspecs work",
2018-08-31).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change "fetch" to treat "+" in refspecs (aka --force) to mean we
should clobber a local tag of the same name.
This changes the long-standing behavior of "fetch" added in
853a3697dc ("[PATCH] Multi-head fetch.", 2005-08-20). Before this
change, all tag fetches effectively had --force enabled. See the
git-fetch-script code in fast_forward_local() with the comment:
> Tags need not be pointing at commits so there is no way to
> guarantee "fast-forward" anyway.
That commit and the rest of the history of "fetch" shows that the
"+" (--force) part of refpecs was only conceived for branch updates,
while tags have accepted any changes from upstream unconditionally and
clobbered the local tag object. Changing this behavior has been
discussed as early as 2011[1].
The current behavior doesn't make sense to me, it easily results in
local tags accidentally being clobbered. We could namespace our tags
per-remote and not locally populate refs/tags/*, but as with my
97716d217c ("fetch: add a --prune-tags option and fetch.pruneTags
config", 2018-02-09) it's easier to work around the current
implementation than to fix the root cause.
So this change implements suggestion #1 from Jeff's 2011 E-Mail[1],
"fetch" now only clobbers the tag if either "+" is provided as part of
the refspec, or if "--force" is provided on the command-line.
This also makes it nicely symmetrical with how "tag" itself works when
creating tags. I.e. we refuse to clobber any existing tags unless
"--force" is supplied. Now we can refuse all such clobbering, whether
it would happen by clobbering a local tag with "tag", or by fetching
it from the remote with "fetch".
Ref updates outside refs/{tags,heads/* are still still not symmetrical
with how "git push" works, as discussed in the recently changed
pull-fetch-param.txt documentation. This change brings the two
divergent behaviors more into line with one another. I don't think
there's any reason "fetch" couldn't fully converge with the behavior
used by "push", but that's a topic for another change.
One of the tests added in 31b808a032 ("clone --single: limit the fetch
refspec to fetched branch", 2012-09-20) is being changed to use
--force where a clone would clobber a tag. This changes nothing about
the existing behavior of the test.
1. https://public-inbox.org/git/20111123221658.GA22313@sigill.intra.peff.net/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refer to the new git-push(1) documentation about when ref updates are
and aren't allowed with and without --force, noting how "git-fetch"
differs from the behavior of "git-push".
Perhaps it would be better to split this all out into a new
gitrefspecs(7) man page, or present this information using tables.
In lieu of that, this is accurate, and fixes a big omission in the
existing refspec docs.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's complex rules governing whether a push is allowed to take
place depending on whether we're pushing to refs/heads/*, refs/tags/*
or refs/not-that/*. See is_branch() in refs.c, and the various
assertions in refs/files-backend.c. (e.g. "trying to write non-commit
object %s to branch '%s'").
This documentation has never been quite correct, but went downhill
after dbfeddb12e ("push: require force for refs under refs/tags/",
2012-11-29) when we started claiming that <dst> couldn't be a tag
object, which is incorrect. After some of the logic in that patch was
changed in 256b9d70a4 ("push: fix "refs/tags/ hierarchy cannot be
updated without --force"", 2013-01-16) the docs weren't updated, and
we've had some version of documentation that confused whether <src>
was a tag or not with whether <dst> would accept either an annotated
tag object or the commit it points to.
This makes the intro somewhat more verbose & complex, perhaps we
should have a shorter description here and split the full complexity
into a dedicated section. Very few users will find themselves needing
to e.g. push blobs or trees to refs/custom-namespace/* (or blobs or
trees at all), and that could be covered separately as an advanced
topic.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This change will be followed-up with a subsequent change where I'll
change both sides of this mention of "tag <tag>" to be something
that's best read without interruption.
To make that change smaller, let's move this mention of "tag <tag>" to
the end of the "<refspec>..." section, it's now somewhere in the
middle.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Saying that "git push <remote> <src>:<dst>" won't push a merger of
<src> and <dst> to <dst> is clear from the rest of the context here,
so mentioning it is redundant, furthermore the mention of "EXAMPLES
below" isn't specific or useful.
This phrase was originally added in 149f6ddfb3 ("Docs: Expand
explanation of the use of + in git push refspecs.", 2009-02-19), as
can be seen in that change the point of the example being cited was to
show that force pushing can leave unreferenced commits on the
remote. It's enough that we explain that in its own section, it
doesn't need to be mentioned here.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The test suite only incidentally (and unintentionally) tested for the
current behavior of eager tag clobbering on "fetch". This is a
followup to 380efb65df ("push tests: assert re-pushing annotated
tags", 2018-07-31) which tests for it explicitly.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The quoted -m'msg' option would mean the same as -mmsg when passed
through the test_force_push_tag helper. Let's instead use a string
with spaces in it, to have a working example in case we need to pass
other whitespace-delimited arguments to git-tag.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix up a logic error in 380efb65df ("push tests: assert re-pushing
annotated tags", 2018-07-31), where the $tag_type_description variable
was assigned to but never used, unlike in the subsequently added
companion test for fetches in 2d216a7ef6 ("fetch tests: add a test for
clobbering tag behavior", 2018-04-29).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The -h output has been referring to the --force command as forcing the
overwriting of local branches, but since "fetch" more generally
fetches all sorts of references in all refs/ namespaces, let's talk
about forcing the update of a a "reference" instead.
This wording was initially introduced in 8320199873 ("Rewrite
builtin-fetch option parsing to use parse_options().", 2007-12-04).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It should be "is not an empty string" not "is not empty string". This
fixes wording originally introduced in ab9b31386b ("Documentation:
multi-head fetch.", 2005-08-24).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Correct a comment referring to the removal of just the branch to also
refer to the tag. This should have been changed in my
ca3065e7e7 ("fetch tests: add a tag to be deleted to the pruning
tests", 2018-02-09) when the tag deletion was added, but I missed it
at the time.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the test that asserts that lightweight tags can only be
clobbered by a force-push to check do the same tests for annotated
tags.
There used to be less exhaustive tests for this with the code added in
40eff17999 ("push: require force for annotated tags", 2012-11-29), but
Junio removed them in 256b9d70a4 ("push: fix "refs/tags/ hierarchy
cannot be updated without --force"", 2013-01-16) while fixing some of
the behavior around tag pushing.
That change left us without any coverage asserting that pushing and
clobbering annotated tags worked as intended. There was no reason to
suspect that the receive machinery wouldn't behave the same way with
annotated tags, but now we know for sure.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Improve the tests added in dbfeddb12e ("push: require force for refs
under refs/tags/", 2012-11-29) to assert that the same behavior
applies various other combinations of command-line option and
refspecs.
Supplying either "+" in refspec or "--force" is sufficient to clobber
the reference. With --no-force we still pay attention to "+" in the
refspec, and vice-versa with clobbering kicking in if there's no "+"
in the refspec but "+" is given.
This is consistent with how refspecs work for branches, where either
"+" or "--force" will enable clobbering, with neither taking priority
over the other.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a logic error that's been here since this test was added in
dbfeddb12e ("push: require force for refs under refs/tags/",
2012-11-29).
The intent of this test is to force-create a new tag pointing to
HEAD~, and then assert that pushing it doesn't work without --force.
Instead, the code was not creating a new tag at all, and then failing
to push the previous tag for the unrelated reason of providing a
refspec that doesn't make any sense.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove an invocation of 'git push' that's exactly the same as the one
on the preceding line. This was seemingly added by mistake in
dbfeddb12e ("push: require force for refs under refs/tags/",
2012-11-29) and doesn't affect the result of the test, the second
"push" was a no-op as there was nothing new to push.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Calling the test tag "Tag" will make for confusing reading later in
this series when making use of the "git push tag <name>"
feature. Let's call the tag testTag instead.
Changes code initially added in dbfeddb12e ("push: require force for
refs under refs/tags/", 2012-11-29).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Honor core.commentchar when preparing the list of commits to replay
in "rebase -i".
* as/sequencer-customizable-comment-char:
sequencer: use configured comment character
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Code clean-up.
* sb/blame-color:
blame: prefer xsnprintf to strcpy for colors
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Build doc update for Windows.
* nd/command-list:
vcbuild/README: update to accommodate for missing common-cmds.h
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Look for broken use of "VAR=VAL shell_func" in test scripts as part
of test-lint.
* es/test-lint-one-shot-export:
t/check-non-portable-shell: detect "FOO=bar shell_func"
t/check-non-portable-shell: make error messages more compact
t/check-non-portable-shell: stop being so polite
t6046/t9833: fix use of "VAR=VAL cmd" with a shell function
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"git rev-parse ':/substring'" did not consider the history leading
only to HEAD when looking for a commit with the given substring,
when the HEAD is detached. This has been fixed.
* wc/find-commit-with-pattern-on-detached-head:
sha1-name.c: for ":/", find detached HEAD commits
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Correct a broken use of "VAR=VAL shell_func" in a test.
* jc/t3404-one-shot-export-fix:
t3404: fix use of "VAR=VAL cmd" with a shell function
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"git reset --merge" (hence "git merge ---abort") and "git reset --hard"
had trouble working correctly in a sparsely checked out working
tree after a conflict, which has been corrected.
* mk/merge-in-sparse-checkout:
unpack-trees: do not fail reset because of unmerged skipped entry
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Code clean-up.
* hs/push-cert-check-cleanup:
gpg-interface: make parse_gpg_output static and remove from interface header
builtin/receive-pack: use check_signature from gpg-interface
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Handling of an empty range by "git cherry-pick" was inconsistent
depending on how the range ended up to be empty, which has been
corrected.
* jk/empty-pick-fix:
sequencer: don't say BUG on bogus input
sequencer: handle empty-set cases consistently
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Code clean-up.
* bp/log-ref-write-fd-with-strbuf:
convert log_ref_write_fd() to use strbuf
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Partial clone support of "git clone" has been updated to correctly
validate the objects it receives from the other side. The server
side has been corrected to send objects that are directly
requested, even if they may match the filtering criteria (e.g. when
doing a "lazy blob" partial clone).
* jt/partial-clone-fsck-connectivity:
clone: check connectivity even if clone is partial
upload-pack: send refs' objects despite "filter"
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The content-transfer-encoding of the message "git send-email" sends
out by default was 8bit, which can cause trouble when there is an
overlong line to bust RFC 5322/2822 limit. A new option 'auto' to
automatically switch to quoted-printable when there is such a line
in the payload has been introduced and is made the default.
* bc/send-email-auto-cte:
docs: correct RFC specifying email line length
send-email: automatically determine transfer-encoding
send-email: accept long lines with suitable transfer encoding
send-email: add an auto option for transfer encoding
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The character display width table has been updated to match the
latest Unicode standard.
* bb/unicode-11-width:
unicode: update the width tables to Unicode 11
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The codebase has been updated to compile cleanly with -pedantic
option.
* bb/pedantic:
utf8.c: avoid char overflow
string-list.c: avoid conversion from void * to function pointer
sequencer.c: avoid empty statements at top level
convert.c: replace "\e" escapes with "\033".
fixup! refs/refs-internal.h: avoid forward declaration of an enum
refs/refs-internal.h: avoid forward declaration of an enum
fixup! connect.h: avoid forward declaration of an enum
connect.h: avoid forward declaration of an enum
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Compilation fix.
* tb/config-default:
builtin/config: work around an unsized array forward declaration
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"git fast-import" has been updated to avoid attempting to create
delta against a zero-byte-long string, which is pointless.
* mh/fast-import-no-diff-delta-empty:
fast-import: do not call diff_delta() with empty buffer
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The userdiff pattern for .php has been updated.
* kn/userdiff-php:
userdiff: support new keywords in PHP hunk header
t4018: add missing test cases for PHP
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Test modernization.
* jk/fetch-all-peeled-fix:
t5500: prettify non-commit tag tests
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The help message shown in the editor to edit todo list in "rebase -p"
has regressed recently, which has been corrected.
* ag/rebase-p:
git-rebase--preserve-merges: fix formatting of todo help message
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"git fetch" failed to correctly validate the set of objects it
received when making a shallow history deeper, which has been
corrected.
* jt/connectivity-check-after-unshallow:
fetch-pack: write shallow, then check connectivity
fetch-pack: implement ref-in-want
fetch-pack: put shallow info in output parameter
fetch: refactor to make function args narrower
fetch: refactor fetch_refs into two functions
fetch: refactor the population of peer ref OIDs
upload-pack: test negotiation with changing repository
upload-pack: implement ref-in-want
test-pkt-line: add unpack-sideband subcommand
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The "--ignore-case" option of "git for-each-ref" (and its friends)
did not work correctly, which has been fixed.
* jk/for-each-ref-icase:
ref-filter: avoid backend filtering with --ignore-case
for-each-ref: consistently pass WM_IGNORECASE flag
t6300: add a test for --ignore-case
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* en/t5407-rebase-m-fix:
t5407: fix test to cover intended arguments
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* en/apply-comment-fix:
apply: fix grammar error in comment
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"git rebase" behaved slightly differently depending on which one of
the three backends gets used; this has been documented and an
effort to make them more uniform has begun.
* en/rebase-consistency:
git-rebase: make --allow-empty-message the default
t3401: add directory rename testcases for rebase and am
git-rebase.txt: document behavioral differences between modes
directory-rename-detection.txt: technical docs on abilities and limitations
git-rebase.txt: address confusion between --no-ff vs --force-rebase
git-rebase: error out when incompatible options passed
t3422: new testcases for checking when incompatible options passed
git-rebase.sh: update help messages a bit
git-rebase.txt: document incompatible options
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"git checkout --recurse-submodules another-branch" did not report
in which submodule it failed to update the working tree, which
resulted in an unhelpful error message.
* sb/submodule-move-head-error-msg:
submodule.c: report the submodule that an error occurs in
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"fsck.skipList" did not prevent a blob object listed there from
being inspected for is contents (e.g. we recently started to
inspect the contents of ".gitmodules" for certain malicious
patterns), which has been corrected.
* rj/submodule-fsck-skip:
fsck: check skiplist for object in fsck_blob()
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build fix.
* js/enhanced-version-info:
Makefile: fix the "built from commit" code
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* sb/mailmap:
.mailmap: merge different spellings of names
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Clarify that setting core.ignoreCase to deviate from reality would
not turn a case-incapable filesystem into a case-capable one.
* ms/core-icase-doc:
Documentation: declare "core.ignoreCase" as internal variable
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Docfix.
* ds/commit-graph:
commit-graph: fix documentation inconsistencies
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Doc updates.
* tz/exclude-doc-smallfixes:
dir.c: fix typos in core.excludesfile comment
gitignore.txt: clarify default core.excludesfile path
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Ævar Arnfjörð Bjarmason
Junio C Hamano