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The top-level &&-chain checker built into t/test-lib.sh causes tests to
magically exit with code 117 if the &&-chain is broken. However, it has
the shortcoming that the magic does not work within `{...}` groups,
`(...)` subshells, `$(...)` substitutions, or within bodies of compound
statements, such as `if`, `for`, `while`, `case`, etc. `chainlint.sed`
partly fills in the gap by catching broken &&-chains in `(...)`
subshells, but bugs can still lurk behind broken &&-chains in the other
cases.
Fix broken &&-chains in `{...}` groups in order to reduce the number of
possible lurking bugs.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The shell+perl "[de]packetize()" helper functions were added in
4414a150025 (t/lib-git-daemon: add network-protocol helpers,
2018-01-24), and around the same time we added the "pkt-line" helper
in 74e70029615 (test-pkt-line: introduce a packet-line test helper,
2018-03-14).
For some reason it seems we've mostly used the shell+perl version
instead of the helper since then. There were discussions around
88124ab2636 (test-lib-functions: make packetize() more efficient,
2020-03-27) and cacae4329fa (test-lib-functions: simplify packetize()
stdin code, 2020-03-29) to improve them and make them more efficient.
There was one good reason to do so, we needed an equivalent of
"test-tool pkt-line pack", but that command wasn't capable of handling
input with "\n" (a feature) or "\0" (just because it happens to be
printf-based under the hood).
Let's add a "pkt-line-raw" helper for that, and expose is at a
packetize_raw() to go with the existing packetize() on the shell
level, this gives us the smallest amount of change to the tests
themselves.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Prepare tests not to be affected by the name of the default branch
"git init" creates.
* js/default-branch-name-tests-final-stretch: (28 commits)
tests: drop prereq `PREPARE_FOR_MAIN_BRANCH` where no longer needed
t99*: adjust the references to the default branch name "main"
tests(git-p4): transition to the default branch name `main`
t9[5-7]*: adjust the references to the default branch name "main"
t9[0-4]*: adjust the references to the default branch name "main"
t8*: adjust the references to the default branch name "main"
t7[5-9]*: adjust the references to the default branch name "main"
t7[0-4]*: adjust the references to the default branch name "main"
t6[4-9]*: adjust the references to the default branch name "main"
t64*: preemptively adjust alignment to prepare for `master` -> `main`
t6[0-3]*: adjust the references to the default branch name "main"
t5[6-9]*: adjust the references to the default branch name "main"
t55[4-9]*: adjust the references to the default branch name "main"
t55[23]*: adjust the references to the default branch name "main"
t551*: adjust the references to the default branch name "main"
t550*: adjust the references to the default branch name "main"
t5503: prepare aligned comment for replacing `master` with `main`
t5[0-4]*: adjust the references to the default branch name "main"
t5323: prepare centered comment for `master` -> `main`
t4*: adjust the references to the default branch name "main"
...
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Newline characters in the host and path part of git:// URL are
now forbidden.
* jk/forbid-lf-in-git-url:
fsck: reject .gitmodules git:// urls with newlines
git_connect_git(): forbid newlines in host and path
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When we connect to a git:// server, we send an initial request that
looks something like:
002dgit-upload-pack repo.git\0host=example.com
If the repo path contains a newline, then it's included literally, and
we get:
002egit-upload-pack repo
.git\0host=example.com
This works fine if you really do have a newline in your repository name;
the server side uses the pktline framing to parse the string, not
newlines. However, there are many _other_ protocols in the wild that do
parse on newlines, such as HTTP. So a carefully constructed git:// URL
can actually turn into a valid HTTP request. For example:
git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 %0d%0aHost:localhost%0d%0a%0d%0a
becomes:
0050git-upload-pack /
GET / HTTP/1.1
Host:localhost
host=localhost:1234
on the wire. Again, this isn't a problem for a real Git server, but it
does mean that feeding a malicious URL to Git (e.g., through a
submodule) can cause it to make unexpected cross-protocol requests.
Since repository names with newlines are presumably quite rare (and
indeed, we already disallow them in git-over-http), let's just disallow
them over this protocol.
Hostnames could likewise inject a newline, but this is unlikely a
problem in practice; we'd try resolving the hostname with a newline in
it, which wouldn't work. Still, it doesn't hurt to err on the side of
caution there, since we would not expect them to work in the first
place.
The ssh and local code paths are unaffected by this patch. In both cases
we're trying to run upload-pack via a shell, and will quote the newline
so that it makes it intact. An attacker can point an ssh url at an
arbitrary port, of course, but unless there's an actual ssh server
there, we'd never get as far as sending our shell command anyway. We
_could_ similarly restrict newlines in those protocols out of caution,
but there seems little benefit to doing so.
The new test here is run alongside the git-daemon tests, which cover the
same protocol, but it shouldn't actually contact the daemon at all. In
theory we could make the test more robust by setting up an actual
repository with a newline in it (so that our clone would succeed if our
new check didn't kick in). But a repo directory with newline in it is
likely not portable across all filesystems. Likewise, we could check
git-daemon's log that it was not contacted at all, but we do not
currently record the log (and anyway, it would make the test racy with
the daemon's log write). We'll just check the client-side stderr to make
sure we hit the expected code path.
Reported-by: Harold Kim <h.kim@flatt.tech>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This trick was performed via
$ (cd t &&
sed -i -e 's/master/main/g' -e 's/MASTER/MAIN/g' \
-e 's/Master/Main/g' -e 's/retsam/niam/g' \
-- t55[4-9]*.sh t556x*)
This allows us to define `GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main`
for those tests.
Note that t5541 uses the reversed `master` name: `retsam`. We replace it
by the equivalent for `main`: `niam`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In addition to the manual adjustment to let the `linux-gcc` CI job run
the test suite with `master` and then with `main`, this patch makes sure
that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts
that currently rely on the initial branch name being `master by default.
To determine which test scripts to mark up, the first step was to
force-set the default branch name to `master` in
- all test scripts that contain the keyword `master`,
- t4211, which expects `t/t4211/history.export` with a hard-coded ref to
initialize the default branch,
- t5560 because it sources `t/t556x_common` which uses `master`,
- t8002 and t8012 because both source `t/annotate-tests.sh` which also
uses `master`)
This trick was performed by this command:
$ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
' $(git grep -l master t/t[0-9]*.sh) \
t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh
After that, careful, manual inspection revealed that some of the test
scripts containing the needle `master` do not actually rely on a
specific default branch name: either they mention `master` only in a
comment, or they initialize that branch specificially, or they do not
actually refer to the current default branch. Therefore, the
aforementioned modification was undone in those test scripts thusly:
$ git checkout HEAD -- \
t/t0027-auto-crlf.sh t/t0060-path-utils.sh \
t/t1011-read-tree-sparse-checkout.sh \
t/t1305-config-include.sh t/t1309-early-config.sh \
t/t1402-check-ref-format.sh t/t1450-fsck.sh \
t/t2024-checkout-dwim.sh \
t/t2106-update-index-assume-unchanged.sh \
t/t3040-subprojects-basic.sh t/t3301-notes.sh \
t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \
t/t3436-rebase-more-options.sh \
t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \
t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \
t/t5511-refspec.sh t/t5526-fetch-submodules.sh \
t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \
t/t5548-push-porcelain.sh \
t/t5552-skipping-fetch-negotiator.sh \
t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \
t/t5614-clone-submodules-shallow.sh \
t/t7508-status.sh t/t7606-merge-custom.sh \
t/t9302-fast-import-unpack-limit.sh
We excluded one set of test scripts in these commands, though: the range
of `git p4` tests. The reason? `git p4` stores the (foreign) remote
branch in the branch called `p4/master`, which is obviously not the
default branch. Manual analysis revealed that only five of these tests
actually require a specific default branch name to pass; They were
modified thusly:
$ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
' t/t980[0167]*.sh t/t9811*.sh
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Two blocks in t5570 want to align the closing double quotes, padding
with spaces if needed. Since the maximum length of those lines is
defined by the branch name `master`, the upcoming rename to `main` would
unalign the quotes.
But then, it is unclear how those aligned closing quotes should help
readability anyway, so let's just remove that padding altogether.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up around a much-less-important-than-it-used-to-be
update_server_info() funtion.
* jk/server-info-rabbit-hole:
update_info_refs(): drop unused force parameter
server-info: drop objdirlen pointer arithmetic
server-info: drop nr_alloc struct member
server-info: use strbuf to read old info/packs file
server-info: simplify cleanup in parse_pack_def()
server-info: fix blind pointer arithmetic
http: simplify parsing of remote objects/info/packs
packfile: fix pack basename computation
midx: check both pack and index names for containment
t5319: drop useless --buffer from cat-file
t5319: fix bogus cat-file argument
pack-revindex: open index if necessary
packfile.h: drop extern from function declarations
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When we have a multi-pack-index that covers many packfiles, we try to
avoid opening the .idx for those packfiles. To do that we feed the pack
name to midx_contains_pack(). But that function wants to see only the
basename, which we compute using strrchr() to find the final slash. But
that leaves an extra "/" at the start of our string.
We can fix this by incrementing the pointer. That also raises the
question of what to do when the name does not have a '/' at all. This
should generally not happen (we always find files in "pack/"), but it
doesn't hurt to be defensive here.
Let's wrap all of that up in a helper function and make it publicly
available, since a later patch will need to use it, too.
The tests don't notice because there's nothing about opening those .idx
files that would cause us to give incorrect output. It's just a little
slower. The new test checks this case by corrupting the covered .idx,
and then making sure we don't complain about it.
We also have to tweak t5570, which intentionally corrupts a .idx file
and expects us to notice it. When run with GIT_TEST_MULTI_PACK_INDEX,
this will fail since we now will (correctly) not bother opening the .idx
at all. We can fix that by unconditionally dropping any midx that's
there, which ensures we'll have to read the .idx.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use 'test_atexit' to run cleanup commands to stop 'git-daemon' at the
end of the test script or upon interrupt or failure, as it is shorter,
simpler, and more robust than registering such cleanup commands in the
trap on EXIT in the test scripts.
Note that in 't5570-git-daemon.sh' the daemon is stopped and then
re-started in the middle of the test script; take care that the
cleanup functions to stop the daemon are only registered once.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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t5570 being racy has been reported twice separately on the mailing
list [*1*, *2*].
To make the test race proof, we'd either have to introduce another
fifo the test snippet is waiting on, or somehow convincing "cat" to
flush (and let us know when it has). Which really implies killing the
daemon, and wait()ing on cat to process the EOF and exit. And that
makes the tests a lot more expensive if we have to start the daemon
for each snippet.
As this is a test for a relatively minor fix (according to the author)
in 19136be3f8 ("daemon: fix off-by-one in logging extended
attributes", 2018-01-24), drop it to avoid this racyness. It doesn't
seem worth making the test code much more complex, or slowing down all
tests just to keep this one.
*1*: 1522783990.964448.1325338528.0D49CC15@webmail.messagingengine.com/
*2*: 9d4e5224-9ff4-f3f8-519d-7b2a6f1ea7cd@web.de
Reported-by: Jan Palus <jpalus@fastmail.com>
Reported-by: Torsten Bögershausen <tboegi@web.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test fixes.
* sg/test-must-be-empty:
tests: use 'test_must_be_empty' instead of 'test_cmp <empty> <out>'
tests: use 'test_must_be_empty' instead of 'test_cmp /dev/null <out>'
tests: use 'test_must_be_empty' instead of 'test ! -s'
tests: use 'test_must_be_empty' instead of '! test -s'
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Using 'test_must_be_empty' is preferable to '! test -s', because it
gives a helpful error message if the given file is unexpectedly not
empty, while the latter remains completely silent. Furthermore, it
also catches cases when the given file unexpectedly does not exist at
all.
This patch was basically created by:
sed -i -e 's/! test -s/test_must_be_empty/' t[0-9]*.sh
with the following notable exceptions:
- The '! test -s' check in '.gitmodules ignore=dirty suppresses
submodules with untracked content' in 't7508-status.sh' is left
as-is, because it's bogus and, therefore, it's subject of a
dedicated patch.
- The '! test -s' checks in 't9131-git-svn-empty-symlink.sh' and
't9135-git-svn-moved-branch-empty-file.sh' are immediately
preceeded by a 'test -f' to ensure that the files exist in the
first place. 'test_must_be_empty' ensures that as well, so those
'test -f' commands are removed as well.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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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The test 'no-op fetch without "-v" is quiet' in 't5570-git-daemon.sh'
fails when the test script is run with '-x' tracing (and using a shell
other than a Bash version supporting BASH_XTRACEFD). The reason for
the failure is that the test checks the emptiness of a subshell's
stderr, which includes the trace of commands executed in that subshell
as well, throwing off the emptiness check.
Save the stderr of 'git fetch' only instead of the whole subshell's, so
it remains free from tracing output.
After this change t5570 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When git-daemon gets a pktline request, we strip off any
trailing newline, replacing it with a NUL. Clients prior to
5ad312bede (in git v1.4.0) would send:
git-upload-pack repo.git\n
and we need to strip it off to understand their request.
After 5ad312bede, we send the host attribute but no newline,
like:
git-upload-pack repo.git\0host=example.com\0
Both of these are parsed correctly by git-daemon. But if
some client were to combine the two:
git-upload-pack repo.git\n\0host=example.com\0
we don't parse it correctly. The problem is that we use the
"len" variable to record the position of the NUL separator,
but then decrement it when we strip the newline. So we start
with:
git-upload-pack repo.git\n\0host=example.com\0
^-- len
and end up with:
git-upload-pack repo.git\0\0host=example.com\0
^-- len
This is arguably correct, since "len" tells us the length of
the initial string, but we don't actually use it for that.
What we do use it for is finding the offset of the extended
attributes; they used to be at len+1, but are now at len+2.
We can solve that by just leaving "len" where it is. We
don't have to care about the length of the shortened string,
since we just treat it like a C string.
No version of Git ever produced such a string, but it seems
like the daemon code meant to handle this case (and it seems
like a reasonable thing for somebody to do in a 3rd-party
implementation).
Reported-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we receive a request with extended attributes after the
NUL, we try to write those attributes to the log. We do so
with a "%s" format specifier, which will only show
characters up to the first NUL.
That's enough for printing a "host=" specifier. But since
dfe422d04d (daemon: recognize hidden request arguments,
2017-10-16) we may have another NUL, followed by protocol
parameters, and those are not logged at all.
Let's cut out the attempt to show the whole string, and
instead log when we parse individual attributes. We could
leave the "extended attributes (%d bytes) exist" part of the
log, which in theory could alert us to attributes that fail
to parse. But anything we don't parse as a "host=" parameter
gets blindly added to the "protocol" attribute, so we'd see
it in that part of the log.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If receive a request like:
git-upload-pack /foo.git\0host=localhost
we mark the offset of the NUL byte as "len", and then log
the bytes after the NUL with a "%.*s" placeholder, using
"pktlen - len" as the length, and "line + len + 1" as the
start of the string.
This is off-by-one, since the start of the string skips past
the separating NUL byte, but the adjusted length includes
it. Fortunately this doesn't actually read past the end of
the buffer, since "%.*s" will stop when it hits a NUL. And
regardless of what is in the buffer, packet_read() will
always add an extra NUL terminator for safety.
As an aside, the git.git client sends an extra NUL after a
"host" field, too, so we'd generally hit that one first, not
the one added by packet_read(). You can see this in the test
output which reports 15 bytes, even though the string has
only 14 bytes of visible data. But the point is that even a
client sending unusual data could not get us to read past
the end of the buffer, so this is purely a cosmetic fix.
Reported-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We don't actually care about the clone operation here; we
just want to know if we were able to actually contact the
remote repository. Using ls-remote does that more
efficiently, and without us having to worry about managing
the tmp.git directory.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ew/connect-verbose:
t5570: add tests for "git {clone,fetch,pull} -v"
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Now that git_connect is more information about connectivity
progress after: ("pass transport verbosity down to git_connect")
we should ensure it remains so for future users who need to
to diagnose networking problems.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The Git CodingGuidelines prefer the $(...) construct for command
substitution instead of using the backquotes `...`.
The backquoted form is the traditional method for command
substitution, and is supported by POSIX. However, all but the
simplest uses become complicated quickly. In particular, embedded
command substitutions and/or the use of double quotes require
careful escaping with the backslash character.
The patch was generated by:
for _f in $(find . -name "*.sh")
do
perl -i -pe 'BEGIN{undef $/;} s/`(.+?)`/\$(\1)/smg' "${_f}"
done
and then carefully proof-read.
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We use the daemon_avoid_alias function to make sure that the
pathname the user gives us is sane. However, after applying
that check, we might then interpolate the path using a
string given by the server admin, but which may contain more
untrusted data from the client. We should be sure to
sanitize this data, as well.
We cannot use daemon_avoid_alias here, as it is more strict
than we need in requiring a leading '/'. At the same time,
we can be much more strict here. We are interpreting a
hostname, which should not contain slashes or excessive runs
of dots, as those things are not allowed in DNS names.
Note that in addition to cleansing the hostname field, we
must check the "canonical hostname" (%CH) as well as the
port (%P), which we take as a raw string. For the canonical
hostname, this comes from an actual DNS lookup on the
accessed IP, which makes it a much less likely vector for
problems. But it does not hurt to sanitize it in the same
way. Unfortunately we cannot test this case easily, as it
would involve a custom hostname lookup.
We do not need to check %IP, as it comes straight from
inet_ntop, so must have a sane form.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We did not test this at all; let's just give a basic sanity
check that we can find a path based on virtual hosting, and
that the downcase canonicalization works.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A recent commit taught lib-httpd to always start apache on
the same port as the numbered tests. Let's do the same for
the git-daemon tests.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git clone now reports its progress to standard error, which throws off
t5570. Using test_i18ngrep instead of test_cmp allows the test to be
more flexible by only looking for the expected error and ignoring any
other output from the program.
Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-daemon now uses the symref capability to send the correct HEAD
reference, so the test for that in t5570 now passes.
Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The default mode for push without arguments will change. Some warnings
are about to be enabled for such use, which causes some t5570 tests to
fail because they do not expect this output.
Fix this by passing an explicit refspec to git push. To that end, change
the calling conventions of test_remote_error in order to accomodate
extra command arguments.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The semantics of the git daemon tests are similar to the http transport
tests. In fact, they are only a slightly modified copy of t5550, plus the
newly added remote error tests.
All git-daemon tests will be skipped unless the environment variable
GIT_TEST_GIT_DAEMON is set.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Eric Sunshine
Ævar Arnfjörð Bjarmason
Junio C Hamano
Jeff King
Johannes Schindelin
Thomas Gummerer
SZEDER Gábor
Nguyễn Thái Ngọc Duy
Eric Wong
Elia Pinto
Brian Gernhardt
Clemens Buchacher