The OS X build pulls in sys/queue.h, which pollutes the preprocessor
namespace with a macro generically named LIST_HEAD, and clashes with
the name we use here.
ref: http://mid.gmane.org/FB76544F-16F7-45CA-9649-FD62EE44B0DE@gmail.com
Reported-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As we are not yet moving everything to size_t but still using ulong
internally when talking about the size of object, platforms with
32-bit long will not be able to produce tar archive with 4GB+ file,
and cannot grok 077777777777UL as a constant. Disable the extended
header feature and do not test it on them.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Skip tests that are unrunnable on platforms without 64-bit long
to avoid unnecessary test failures.
* jk/tzoffset-fix:
t0006: skip "far in the future" test when unsigned long is not long enough
Git's source code refers to timestamps as unsigned longs. On 32-bit
platforms, as well as on Windows, unsigned long is not large enough
to capture dates that are "absurdly far in the future".
While we can fix this issue properly by replacing unsigned long with
a larger type, we want to be a bit more conservative and just skip
those tests on the maint track.
Signed-off-by: Jeff King <peff@peff.net>
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The functions `mk_repo_pair` as well as `test_refs` are borrowed from
t5543-atomic-push, with additional hooks installed.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This implements everything that is required on the client side to make use
of push options from the porcelain push command.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The pre/post receive hook may be interested in more information from the
user. This information can be transmitted when both client and server
support the "push-options" capability, which when used is a phase directly
after update commands ended by a flush pkt.
Similar to the atomic option, the server capability can be disabled via
the `receive.advertisePushOptions` config variable. While documenting
this, fix a nit in the `receive.advertiseAtomic` wording.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The environment variable GIT_PUSH_OPTION_COUNT is set to the number of
push options sent, and GIT_PUSH_OPTION_{0,1,..} is set to the transmitted
option.
The code is not executed as the push options are set to NULL, nor is the
new capability advertised.
There was some discussion back and forth how to present these push options
to the user as there are some ways to do it:
Keep all options in one environment variable
============================================
+ easiest way to implement in Git
- This would make things hard to parse correctly in the hook.
Put the options in files instead,
filenames are in GIT_PUSH_OPTION_FILES
======================================
+ After a discussion about environment variables and shells, we may not
want to put user data into an environment variable (see [1] for example).
+ We could transmit binaries, i.e. we're not bound to C strings as
we are when using environment variables to the user.
+ Maybe easier to parse than constructing environment variable names
GIT_PUSH_OPTION_{0,1,..} yourself
- cleanup of the temporary files is hard to do reliably
- we have race conditions with multiple clients pushing, hence we'd need
to use mkstemp. That's not too bad, but still.
Use environment variables, but restrict to key/value pairs
==========================================================
(When the user pushes a push option `foo=bar`, we'd
GIT_PUSH_OPTION_foo=bar)
+ very easy to parse for a simple model of push options
- it's not sufficient for more elaborate models, e.g.
it doesn't allow doubles (e.g. cc=reviewer@email)
Present the options in different environment variables
======================================================
(This is implemented)
* harder to parse as a user, but we have a sample hook for that.
- doesn't allow binary files
+ allows the same option twice, i.e. is not restrictive about
options, except for binary files.
+ doesn't clutter a remote directory with (possibly stale)
temporary files
As we first want to focus on getting simple strings to work
reliably, we go with the last option for now. If we want to
do transmission of binaries later, we can just attach a
'side-channel', e.g. "any push option that contains a '\0' is
put into a file instead of the environment variable and we'd
have new GIT_PUSH_OPTION_FILES, GIT_PUSH_OPTION_FILENAME_{0,1,..}
environment variables".
[1] 'Shellshock' https://lwn.net/Articles/614218/
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In v1.8.5 days, 7f2ea5f0 (diff: allow lowercase letter to specify
what change class to exclude, 2013-07-17) taught the "--diff-filter"
mechanism to take lowercase letters as exclusion, but we forgot to
document it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we tried to fix in 58461bd (t1308: do not get fooled by symbolic
links to the source tree, 2016-06-02) an obscure case where the user
cd's into Git's source code via a symbolic link, a regression was
introduced that affects all test runs on Windows.
The original patch introducing the test case in question was careful to
use `$(pwd)` instead of `$PWD`.
This was done to account for the fact that Git's test suite uses shell
scripting even on Windows, where the shell's Unix-y paths are
incompatible with the main Git executable's idea of paths: it only
accepts Windows paths.
It is an awkward but necessary thing, then, to use `$(pwd)` (which gives
us a Windows path) when interacting with the Git executable and `$PWD`
(which gives the shell's idea of the current working directory in Unix-y
form) for shell scripts, including the test suite itself.
Obviously this broke the use case of the Git maintainer when changing
the working directory into Git's source code directory via a symlink,
i.e. when `$(pwd)` does not agree with `$PWD`.
However, we must not fix that use case at the expense of regressing
another use case.
Let's special-case Windows here, even if it is ugly, for lack of a more
elegant solution.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 47abd85 (fetch: Strip usernames from url's before
storing them, 2009-04-17) taught fetch to anonymize URLs.
The primary purpose there was to avoid sticking passwords in
merge-commit messages, but as a side effect, we also avoid
printing them to stderr.
The push side does not have the merge-commit problem, but it
probably should avoid printing them to stderr. We can reuse
the same anonymizing function.
Note that for this to come up, the credentials would have to
appear either on the command line or in a git config file,
neither of which is particularly secure. So people _should_
be switching to using credential helpers instead, which
makes this problem go away. But that's no excuse not to
improve the situation for people who for whatever reason end
up using credentials embedded in the URL.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git archive" learned to handle files that are larger than 8GB and
commits far in the future than expressible by the traditional US-TAR
format.
* jk/big-and-future-archive-tar:
archive-tar: drop return value
archive-tar: write extended headers for far-future mtime
archive-tar: write extended headers for file sizes >= 8GB
t5000: test tar files that overflow ustar headers
t9300: factor out portable "head -c" replacement
Git does not know what the contents in the index should be for a
path added with "git add -N" yet, so "git grep --cached" should not
show hits (or show lack of hits, with -L) in such a path, but that
logic does not apply to "git grep", i.e. searching in the working
tree files. But we did so by mistake, which has been corrected.
* nd/ita-cleanup:
grep: fix grepping for "intent to add" files
t7810-grep.sh: fix a whitespace inconsistency
t7810-grep.sh: fix duplicated test name
"git rebase -i --autostash" did not restore the auto-stashed change
when the operation was aborted.
* ps/rebase-i-auto-unstash-upon-abort:
rebase -i: restore autostash on abort
"git commit --amend --allow-empty-message -S" for a commit without
any message body could have misidentified where the header of the
commit object ends.
* js/sign-empty-commit-fix:
commit -S: avoid invalid pointer with empty message
More mark-up updates to typeset strings that are expected to
literally typed by the end user in fixed-width font.
* mm/doc-tt:
doc: typeset HEAD and variants as literal
CodingGuidelines: formatting HEAD in documentation
doc: typeset long options with argument as literal
doc: typeset '--' as literal
doc: typeset long command-line options as literal
doc: typeset short command-line options as literal
Documentation/git-mv.txt: fix whitespace indentation
Add a test to specify the desired behaviour that currently is not
available in "git rebase -Xsubtree=...".
* dg/subtree-rebase-test:
contrib/subtree: Add a test for subtree rebase that loses commits
"gc.autoPackLimit" when set to 1 should not trigger a repacking
when there is only one pack, but the code counted poorly and did
so.
* ew/gc-auto-pack-limit-fix:
gc: fix off-by-one error with gc.autoPackLimit
More markings of messages for i18n, with updates to various tests
to pass GETTEXT_POISON tests.
One patch from the original submission dropped due to conflicts
with jk/upload-pack-hook, which is still in flux.
* va/i18n-even-more: (38 commits)
t5541: become resilient to GETTEXT_POISON
i18n: branch: mark comment when editing branch description for translation
i18n: unmark die messages for translation
i18n: submodule: escape shell variables inside eval_gettext
i18n: submodule: join strings marked for translation
i18n: init-db: join message pieces
i18n: remote: allow translations to reorder message
i18n: remote: mark URL fallback text for translation
i18n: standardise messages
i18n: sequencer: add period to error message
i18n: merge: change command option help to lowercase
i18n: merge: mark messages for translation
i18n: notes: mark options for translation
i18n: notes: mark strings for translation
i18n: transport-helper.c: change N_() call to _()
i18n: bisect: mark strings for translation
t5523: use test_i18ngrep for negation
t4153: fix negated test_i18ngrep call
t9003: become resilient to GETTEXT_POISON
tests: unpack-trees: update to use test_i18n* functions
...
For blobs, we want to make sure the on-disk data is not corrupted
(i.e. can be inflated and produce the expected SHA-1). Blob content is
opaque, there's nothing else inside to check for.
For really large blobs, we may want to avoid unpacking the entire blob
in memory, just to check whether it produces the same SHA-1. On 32-bit
systems, we may not have enough virtual address space for such memory
allocation. And even on 64-bit where it's not a problem, allocating a
lot more memory could result in kicking other parts of systems to swap
file, generating lots of I/O and slowing everything down.
For this particular operation, not unpacking the blob and letting
check_sha1_signature, which supports streaming interface, do the job
is sufficient. check_sha1_signature() is not shown in the diff,
unfortunately. But if will be called when "data_valid && !data" is
false.
We will call the callback function "fn" with NULL as "data". The only
callback of this function is fsck_obj_buffer(), which does not touch
"data" at all if it's a blob.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A typical diff will not show what's going on and you need to see full
functions. The core code is like this, at the end of of write_one()
e->idx.offset = *offset;
size = write_object(f, e, *offset);
if (!size) {
e->idx.offset = recursing;
return WRITE_ONE_BREAK;
}
written_list[nr_written++] = &e->idx;
/* make sure off_t is sufficiently large not to wrap */
if (signed_add_overflows(*offset, size))
die("pack too large for current definition of off_t");
*offset += size;
Here we can see that the in-pack object size is returned by
write_object (or indirectly by write_reuse_object). And it's used to
calculate object offsets, which end up in the pack index file,
generated at the end.
If "size" overflows (on 32-bit sytems, unsigned long is 32-bit while
off_t can be 64-bit), we got wrong offsets and produce incorrect .idx
file, which may make it look like the .pack file is corrupted.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
unpack_entry_data() receives an off_t value from unpack_raw_entry(),
which could be larger than unsigned long on 32-bit systems with large
file support. Correct the type so truncation does not happen. This
only affects bad object reporting though.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the right type for offsets in this case, off_t, which makes a
difference on 32-bit systems with large file support, and change
formatting code accordingly.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On 32-bit systems with large file support, one entry could be larger
than 4GB and overflow "len". Correct it so we can unpack a full entry.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This field, filled by sha1_object_info() contains the on-disk size of
an object, which could go over 4GB limit of unsigned long on 32-bit
systems. Use off_t for it instead and update all callers.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using the a Linux-kernel-derived doubly-linked list
implementation from the Userspace RCU library allows us to
enqueue and delete items from the object request queue in
constant time.
This change reduces enqueue times in the prefetch() function
where object request queue could grow to several thousand
objects.
I left out the list_for_each_entry* family macros from list.h
which relied on the __typeof__ operator as we support platforms
without it. Thus, list_entry (aka "container_of") needs to be
called explicitly inside macro-wrapped for loops.
The downside is this costs us an additional pointer per object
request, but this is offset by reduced overhead on queue
operations leading to improved performance and shorter queue
depths.
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
404s are common when fetching loose objects on static HTTP
servers, and reestablishing a connection for every single
404 adds additional latency.
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This parameter has not been used since commit 1d389ab65d
("Add support for parallel HTTP transfers") back in 2005
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
absolute_path() is a wrapper for strbuf_add_absolute_path(). Call the
latter directly for adding absolute paths to a strbuf. That's shorter
and avoids an extra string copy.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't throw the memory allocated for remove_dir_recursively() away after
a single call, use it for the other entries as well instead.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When merge_recursive() decides what the correct blob object merge
result for a path should be, it uses update_file_flags() helper
function to write it out to a working tree file and then calls
add_cacheinfo(). The add_cacheinfo() function in turn calls
make_cache_entry() to create a new cache entry to replace the
higher-stage entries for the path that represents the conflict.
The make_cache_entry() function calls refresh_cache_entry() to fill
in the cached stat information. To mark a cache entry as
up-to-date, the data is re-read from the file in the working tree,
and goes through convert_to_git() conversion to be compared with the
blob object name the new cache entry records.
It is important to note that this happens while the higher-stage
entries, which are going to be replaced with the new entry, are
still in the index. Unfortunately, the convert_to_git() conversion
has a misguided "safer crlf" mechanism baked in, and looks at the
existing cache entry for the path to decide how to convert the
contents in the working tree file. If our side (i.e. stage#2)
records a text blob with CRLF in it, even when the system is
configured to record LF in blobs and convert them to CRLF upon
checkout (and back to LF upon checkin), the "safer crlf" mechanism
stops us doing so.
This especially poses a problem during a renormalizing merge, where
the merge result for the path is computed by first "normalizing" the
blobs involved in the merge by using convert_to_working_tree()
followed by convert_to_git() with "safer crlf" disabled. The merge
result that is computed correctly and fed to add_cacheinfo() via
update_file_flags() does _not_ match what refresh_cache_entry() sees
by converting the working tree file via convert_to_git().
We can work this around by not refreshing the new cache entry in
make_cache_entry() called by add_cacheinfo(). After add_cacheinfo()
adds the new entry, we can call refresh_cache_entry() on that,
knowing that addition of this new cache entry would have removed the
stale cache entries that had CRLF in stage #2 that were carried over
before the renormalizing merge started and will not interfere with
the correct recording of the result.
The test update was taken from a series by Torsten Bögershausen
that attempted to fix this with a different approach.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Torsten Bögershausen <tboegi@web.de>
On 32 bit systems with large file support, unsigned long is 32-bit
while the two offsets in the subtraction expression (pack-objects has
the exact same expression as in sha1_file.c but not shown in diff) are
in 64-bit. If an in-pack object is larger than 2^32 len/datalen is
truncated and we get a misleading "error: bad packed object CRC for
..." as a result.
Use off_t for len and datalen. check_pack_crc() already accepts this
argument as off_t and can deal with 4+ GB.
Noticed-by: Christoph Michelbach <michelbach94@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Install the "apache" package to run the Git web server tests on
Travis-CI Linux build machines. The tests are already executed on OS X
build machines since the apache web server is installed by default.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adjust t4201 to pass on Windows; a couple of test cases need to be
skipped on Windows which leads to a different shortlog than on Linux.
Let's just fix that by limiting the shortlog's commit range to traverse
only one commit: that guarantees that it does not matter how many test
cases were skipped.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We forgot to adjust this code path after moving the test helpers to
t/helper/.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When comparing two lines, ignoring any whitespace at the end, we first
try to match as many bytes as possible and break out of the loop only
upon mismatch, to let the remainder be handled by the code shared with
the other whitespace-ignoring code paths.
When comparing the bytes, however, we incremented the counters always,
even if the bytes did not match. And because we fall through to the
space-at-eol handling at that point, it is as if that mismatch never
happened.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a single character is added to a line, the combination of these
two options results in an empty diff.
This bug was noticed and reported by Naja Melan.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
My Debian wheezy LTS system is still on glibc 2.13; and LTS
distros may use older glibc, still, so lets not unnecessarily
break things out-of-the-box.
We seem to assume Linux is using glibc in our Makefiles anyways,
so I don't think this will introduce new breakage for users of
alternative libc implementations.
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
