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Clean up pkt-line API, implementation and its callers to make them
more robust.
* jk/pkt-line-cleanup:
do not use GIT_TRACE_PACKET=3 in tests
remote-curl: always parse incoming refs
remote-curl: move ref-parsing code up in file
remote-curl: pass buffer straight to get_remote_heads
teach get_remote_heads to read from a memory buffer
pkt-line: share buffer/descriptor reading implementation
pkt-line: provide a LARGE_PACKET_MAX static buffer
pkt-line: move LARGE_PACKET_MAX definition from sideband
pkt-line: teach packet_read_line to chomp newlines
pkt-line: provide a generic reading function with options
pkt-line: drop safe_write function
pkt-line: move a misplaced comment
write_or_die: raise SIGPIPE when we get EPIPE
upload-archive: use argv_array to store client arguments
upload-archive: do not copy repo name
send-pack: prefer prefixcmp over memcmp in receive_status
fetch-pack: fix out-of-bounds buffer offset in get_ack
upload-pack: remove packet debugging harness
upload-pack: do not add duplicate objects to shallow list
upload-pack: use get_sha1_hex to parse "shallow" lines
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The new "--follow-tags" option tells "git push" to push relevant
annotated tags when pushing branches out.
* jc/push-follow-tag:
push: --follow-tags
commit.c: use clear_commit_marks_many() in in_merge_bases_many()
commit.c: add in_merge_bases_many()
commit.c: add clear_commit_marks_many()
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* maint:
Start preparing for 1.8.2.1
transport.c: help gcc 4.6.3 users by squelching compiler warning
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To a human reader, it is quite obvious that cmp is assigned before
it is used, but gcc 4.6.3 that ships with Ubuntu 12.04 is among
those that do not get this right.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
diff.c: diff.renamelimit => diff.renameLimit in message
wt-status: fix possible use of uninitialized variable
fast-import: clarify "inline" logic in file_change_m
run-command: always set failed_errno in start_command
transport: drop "int cmp = cmp" hack
drop some obsolete "x = x" compiler warning hacks
fast-import: use pointer-to-pointer to keep list tail
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According to 47ec794, this initialization is meant to
squelch an erroneous uninitialized variable warning from gcc
4.0.1. That version is quite old at this point, and gcc 4.1
and up handle it fine, with one exception. There seems to be
a regression in gcc 4.6.3, which produces the warning;
however, gcc versions 4.4.7 and 4.7.2 do not.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allows requests to fetch objects at any tip of refs (including
hidden ones). It seems that there may be use cases even outside
Gerrit (e.g. $gmane/215701).
* jc/fetch-raw-sha1:
fetch: fetch objects by their exact SHA-1 object names
upload-pack: optionally allow fetching from the tips of hidden refs
fetch: use struct ref to represent refs to be fetched
parse_fetch_refspec(): clarify the codeflow a bit
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The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.
For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else. With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now that we can read packet data from memory as easily as a
descriptor, get_remote_heads can take either one as a
source. This will allow further refactoring in remote-curl.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A failure to push due to non-ff while on an unborn branch
dereferenced a NULL pointer when showing an error message.
* ft/transport-report-segv:
push: fix segfault when HEAD points nowhere
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Even though "git fetch" has full infrastructure to parse refspecs to
be fetched and match them against the list of refs to come up with
the final list of refs to be fetched, the list of refs that are
requested to be fetched were internally converted to a plain list of
strings at the transport layer and then passed to the underlying
fetch-pack driver.
Stop this conversion and instead pass around an array of refs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A failure to push due to non-ff while on an unborn branch
dereferenced a NULL pointer when showing an error message.
* ft/transport-report-segv:
push: fix segfault when HEAD points nowhere
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Improve error and advice messages given locally when "git push"
refuses when it cannot compute fast-forwardness by separating these
cases from the normal "not a fast-forward; merge first and push
again" case.
* jc/push-reject-reasons:
push: finishing touches to explain REJECT_ALREADY_EXISTS better
push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
push: further simplify the logic to assign rejection reason
push: further clean up fields of "struct ref"
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After a push of a branch other than the current branch fails in
a no-ff error and if you are still on an unborn branch, the code
recently added to report the failure dereferenced a null pointer
while checking the name of the current branch.
Signed-off-by: Fraser Tweedale <frase@frase.id.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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>
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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>
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Add support for a pre-push hook which can be used to determine if the
set of refs to be pushed is suitable for the target repository. The
hook is run with two arguments specifying the name and location of the
destination repository.
Information about what is to be pushed is provided by sending lines of
the following form to the hook's standard input:
<local ref> SP <local sha1> SP <remote ref> SP <remote sha1> LF
If the hook exits with a non-zero status, the push will be aborted.
This will allow the script to determine if the push is acceptable based
on the target repository and branch(es), the commits which are to be
pushed, and even the source branches in some cases.
Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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>
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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>
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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>
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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>
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Remove any references that are available from the remote from the
sought list (rather than overwriting their names with NUL characters,
as previously). Mark matching entries by writing a non-NULL pointer
to string_list_item::util during the iteration, then use
filter_string_list() later to filter out the entries that have been
marked.
Document this aspect of fetch_pack() in a comment in the header file.
(More documentation is obviously still needed.)
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead of juggling <nr_heads,heads> (sometimes called
<nr_match,match>), pass around the list of references to be sought in
a single string_list variable called "sought". Future commits will
make more use of string_list functionality.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git push --recurse-submodules" learns to optionally look into the
histories of submodules bound to the superproject and push them out.
By Heiko Voigt
* hv/submodule-recurse-push:
push: teach --recurse-submodules the on-demand option
Refactor submodule push check to use string list instead of integer
Teach revision walking machinery to walk multiple times sequencially
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Break down the cases in which "git push" fails due to non-ff into
three categories, and give separate advise messages for each case.
By Christopher Tiwald (2) and Jeff King (1)
* ct/advise-push-default:
Fix httpd tests that broke when non-ff push advice changed
clean up struct ref's nonfastforward field
push: Provide situational hints for non-fast-forward errors
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When using this option git will search for all submodules that
have changed in the revisions to be send. It will then try to
push the currently checked out branch of each submodule.
This helps when a user has finished working on a change which
involves submodules and just wants to push everything in one go.
Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This allows us to tell the user which submodules have not been pushed.
Additionally this is helpful when we want to automatically try to push
submodules that have not been pushed.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Pushing a non-fast-forward update to a remote repository will result in
an error, but the hint text doesn't provide the correct resolution in
every case. Give better resolution advice in three push scenarios:
1) If you push your current branch and it triggers a non-fast-forward
error, you should merge remote changes with 'git pull' before pushing
again.
2) If you push to a shared repository others push to, and your local
tracking branches are not kept up to date, the 'matching refs' default
will generate non-fast-forward errors on outdated branches. If this is
your workflow, the 'matching refs' default is not for you. Consider
setting the 'push.default' configuration variable to 'current' or
'upstream' to ensure only your current branch is pushed.
3) If you explicitly specify a ref that is not your current branch or
push matching branches with ':', you will generate a non-fast-forward
error if any pushed branch tip is out of date. You should checkout the
offending branch and merge remote changes before pushing again.
Teach transport.c to recognize these scenarios and configure push.c
to hint for them. If 'git push's default behavior changes or we
discover more scenarios, extension is easy. Standardize on the
advice API and add three new advice variables, 'pushNonFFCurrent',
'pushNonFFDefault', and 'pushNonFFMatching'. Setting any of these
to 'false' will disable their affiliated advice. Setting
'pushNonFastForward' to false will disable all three, thus preserving the
config option for users who already set it, but guaranteeing new
users won't disable push advice accidentally.
Based-on-patch-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Christopher Tiwald <christiwald@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* fc/push-prune:
push: add '--prune' option
remote: refactor code into alloc_delete_ref()
remote: reorganize check_pattern_match()
remote: use a local variable in match_push_refs()
Conflicts:
builtin/push.c
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When pushing groups of refs to a remote, there is no simple way to remove
old refs that still exist at the remote that is no longer updated from us.
This will allow us to remove such refs from the remote.
With this change, running this command
$ git push --prune remote refs/heads/*:refs/remotes/laptop/*
removes refs/remotes/laptop/foo from the remote if we do not have branch
"foo" locally anymore.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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By default, progress output is disabled if stderr is not a terminal.
The --progress option can be used to force progress output anyways.
Conversely, --no-progress does not force progress output. In particular,
if stderr is a terminal, progress output is enabled.
This is unintuitive. Change --no-progress to force output off.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
t5550: repack everything into one file
Catch invalid --depth option passed to clone or fetch
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* nd/maint-parse-depth:
Catch invalid --depth option passed to clone or fetch
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/maint-push-v-is-verbose:
make "git push -v" actually verbose
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* jk/maint-push-v-is-verbose:
make "git push -v" actually verbose
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* jk/fetch-no-tail-match-refs:
connect.c: drop path_match function
fetch-pack: match refs exactly
t5500: give fully-qualified refs to fetch-pack
drop "match" parameter from get_remote_heads
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Providing a single "-v" to "git push" currently does
nothing. Giving two flags ("git push -v -v") turns on the
first level of verbosity.
This is caused by a regression introduced in 8afd8dc (push:
support multiple levels of verbosity, 2010-02-24). Before
the series containing 8afd8dc, the verbosity handling for
fetching and pushing was completely separate. Commit bde873c
refactored the verbosity handling out of the fetch side, and
then 8afd8dc converted push to use the refactored code.
However, the fetch and push sides numbered and passed along
their verbosity levels differently. For both, a verbosity
level of "-1" meant "quiet", and "0" meant "default output".
But from there they differed.
For fetch, a verbosity level of "1" indicated to the "fetch"
program that it should make the status table slightly more
verbose, showing up-to-date entries. A verbosity level of
"2" meant that we should pass a verbose flag to the
transport; in the case of fetch-pack, this displays protocol
debugging information.
As a result, the refactored code in bde873c checks for
"verbosity >= 2", and only then passes it on to the
transport. From the transport code's perspective, a
verbosity of 0 or 1 both meant "0".
Push, on the other hand, does not show its own status table;
that is always handled by the transport layer or below
(originally send-pack itself, but these days it is done by
the transport code). So a verbosity level of 1 meant that we
should pass the verbose flag to send-pack, so that it knows
we want a verbose status table. However, once 8afd8dc
switched it to the refactored fetch code, a verbosity level
of 1 was now being ignored. Thus, you needed to
artificially bump the verbosity to 2 (via "-v -v") to have
any effect.
We can fix this by letting the transport code know about the
true verbosity level (i.e., let it distinguish level 0 or
1).
We then have to also make an adjustment to any transport
methods that assumed "verbose > 0" meant they could spew
lots of debugging information. Before, they could only get
"0" or "2", but now they will also receive "1". They need to
adjust their condition for turning on such spew from
"verbose > 0" to "verbose > 1".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The get_remote_heads function reads the list of remote refs
during git protocol session. It dates all the way back to
def88e9 (Commit first cut at "git-fetch-pack", 2005-07-04).
At that time, the idea was to come up with a list of refs we
were interested in, and then filter the list as we got it
from the remote side.
Later, 1baaae5 (Make maximal use of the remote refs,
2005-10-28) stopped filtering at the get_remote_heads layer,
letting us use the non-matching refs to find common history.
As a result, all callers now simply pass an empty match
list (and any future callers will want to do the same). So
let's drop these now-useless parameters.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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resolve_ref() may return a pointer to a shared buffer and can be
overwritten by the next resolve_ref() calls. Callers need to
pay attention, not to keep the pointer when the next call happens.
Rename with "_unsafe" suffix to warn developers (or reviewers) before
introducing new call sites.
This patch is generated using the following command
git grep -l 'resolve_ref(' -- '*.[ch]'|xargs sed -i 's/resolve_ref(/resolve_ref_unsafe(/g'
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/match-refs-clarify:
rename "match_refs()" to "match_push_refs()"
send-pack: typofix error message
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* jc/unseekable-bundle:
bundle: add parse_bundle_header() helper function
bundle: allowing to read from an unseekable fd
Conflicts:
transport.c
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* ph/transport-with-gitfile:
Fix is_gitfile() for files too small or larger than PATH_MAX to be a gitfile
Add test showing git-fetch groks gitfiles
Teach transport about the gitfile mechanism
Learn to handle gitfiles in enter_repo
enter_repo: do not modify input
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Move most of the code from read_bundle_header() to parse_bundle_header()
that takes a file descriptor that is already opened for reading, and make
the former responsible only for opening the file and noticing errors.
As a logical consequence of this, is_bundle() helper function can be
implemented as a non-complaining variant of read_bundle_header() that
does not return an open file descriptor, and can be used to tighten
the check used to decide the use of bundle transport in transport_get()
function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The logic to check whether a file is a gitfile used the heuristics that
a gitfile cannot be larger than PATH_MAX or smaller than 10 bytes (as
its contents is "gitdir: " followed by a path) and returned early.
But it returned with a wrong value. It should have said "this cannot
possibly be a gitfile" by returning 0, but it returned 1 instead. Our
test cases do not cover this, as the bundle files produced are smaller
than PATH_MAX, except on Windows.
While at it, fix the faulty logic that the path stored in a gitfile cannot
be larger than PATH_MAX-sizeof("gitdir: ").
Problem identified by running the test suite in msysGit, offending commit
identified by Jörg Rosenkranz.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mh/check-ref-format-3: (23 commits)
add_ref(): verify that the refname is formatted correctly
resolve_ref(): expand documentation
resolve_ref(): also treat a too-long SHA1 as invalid
resolve_ref(): emit warnings for improperly-formatted references
resolve_ref(): verify that the input refname has the right format
remote: avoid passing NULL to read_ref()
remote: use xstrdup() instead of strdup()
resolve_ref(): do not follow incorrectly-formatted symbolic refs
resolve_ref(): extract a function get_packed_ref()
resolve_ref(): turn buffer into a proper string as soon as possible
resolve_ref(): only follow a symlink that contains a valid, normalized refname
resolve_ref(): use prefixcmp()
resolve_ref(): explicitly fail if a symlink is not readable
Change check_refname_format() to reject unnormalized refnames
Inline function refname_format_print()
Make collapse_slashes() allocate memory for its result
Do not allow ".lock" at the end of any refname component
Refactor check_refname_format()
Change check_ref_format() to take a flags argument
Change bad_ref_char() to return a boolean value
...
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Change check_ref_format() to take a flags argument that indicates what
is acceptable in the reference name (analogous to "git
check-ref-format"'s "--allow-onelevel" and "--refspec-pattern"). This
is more convenient for callers and also fixes a failure in the test
suite (and likely elsewhere in the code) by enabling "onelevel" and
"refspec-pattern" to be allowed independently of each other.
Also rename check_ref_format() to check_refname_format() to make it
obvious that it deals with refnames rather than references themselves.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-bundle-too-quiet:
Teach progress eye-candy to fetch_refs_from_bundle()
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The transport_get() function assumes that a regular file is a
bundle rather than a local git directory. Look inside the file
for the telltale "gitlink: " header to see if it is actually a
gitfile. If so, do not try to process it as a bundle, but
treat it as a local repository instead.
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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