builtin/branch: stop supporting the "--set-upstream" option
The '--set-upstream' option of branch was deprecated in b347d06b
("branch: deprecate --set-upstream and show help if we detect
possible mistaken use", 2012-08-30) and has been planned for removal
ever since.
In order to prevent "--set-upstream" on a command line from being taken as
an abbreviated form of "--set-upstream-to", explicitly catch "--set-upstream"
option and die, instead of just removing it from the list of options.
Before this change, an attempt to use "--set-upstream" resulted in:
$ git branch
* master
$ git branch --set-upstream origin/master
The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to
Branch origin/master set up to track local branch master.
$ echo $?
0
$ git branch
* master
origin/master
With this change, the behaviour becomes like this:
$ git branch
* master
$ git branch --set-upstream origin/master
fatal: the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead.
$ echo $?
128
$ git branch
* master
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Avoiding the clean up step of tests may help in some cases but in other
cases they cause the other unrelated tests to fail for unobvious reasons.
It's better to cleanup a few things to keep other tests from failing
as a result of it.
So, cleanup a cruft left behind by an old test in order for the changes that
are to be introduced to be independent of it.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff: define block by number of alphanumeric chars
The existing behavior of diff --color-moved=zebra does not define the
minimum size of a block at all, instead relying on a heuristic applied
later to filter out sets of adjacent moved lines that are shorter than 3
lines long. This can be confusing, because a block could thus be colored
as moved at the source but not at the destination (or vice versa),
depending on its neighbors.
Instead, teach diff that the minimum size of a block is 20 alphanumeric
characters, the same heuristic used by "git blame". This allows diff to
still exclude uninteresting lines appearing on their own (such as those
solely consisting of one or a few closing braces), as was the intention
of the adjacent-moved-line heuristic.
This requires a change in some tests in that some of their lines are no
longer considered to be part of a block, because they are too short.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, MIN_BLOCK_LENGTH is only checked when diff encounters a line
that does not belong to the current block. In particular, this means
that MIN_BLOCK_LENGTH is not checked after all lines are encountered.
Perform that check.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sub-process: print the cmd when a capability is unsupported
In handshake_capabilities() we use warning() when a capability
is not supported, so the exit code of the function is 0 and no
further error is shown. This is a problem because the warning
message doesn't tell us which subprocess cmd failed.
On the contrary if we cannot write a packet from this function,
we use error() and then subprocess_start() outputs:
initialization for subprocess '<cmd>' failed
so we can know which subprocess cmd failed.
Let's improve the warning() message, so that we can know which
subprocess cmd failed.
Helped-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
read_info_alternates is not used from outside, so let's make it static.
We have to declare the function before link_alt_odb_entry instead of
moving the code around, link_alt_odb_entry calls read_info_alternates,
which in turn calls link_alt_odb_entry.
Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sum(1) is a command for calculating checksums of the contents of files.
It was part of early editions of Unix ("Research Unix", 1972/1973, [1]).
cksum(1) appeared in 4.4BSD (1993) as a replacement [2], and became part
of POSIX.1-2008 [3]. OpenBSD 5.6 (2014) removed sum(1).
We only use sum(1) in t1002 to check for changes in three files. On
MinGW we use md5sum(1) instead. We could switch to the standard command
cksum(1) for all platforms; MinGW comes with GNU coreutils now, which
provides sum(1), cksum(1) and md5sum(1). Use our standard method for
checking for file changes instead: test_cmp.
It's more convenient because it shows differences nicely, it's faster on
MinGW because we have a special implementation there based only on
shell-internal commands, it's simpler as it allows us to avoid stripping
out unnecessary entries from the checksum file using grep(1), and it's
more consistent with the rest of the test suite.
We already compare changed files with their expected new contents using
diff(1), so we don't need to check with "test_must_fail test_cmp" if
they differ from their original state. A later patch could convert the
direct diff(1) calls to test_cmp as well.
With all sum(1) calls gone, remove the MinGW-specific implementation
from test-lib.sh as well.
pretty: support normalization options for %(trailers)
The interpret-trailers command recently learned some options
to make its output easier to parse (for a caller whose only
interested in picking out the trailer values). But it's not
very efficient for asking for the trailers of many commits
in a single invocation.
We already have "%(trailers)" to do that, but it doesn't
know about unfolding or omitting non-trailers. Let's plumb
those options through, so you can have the best of both.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The next commit will add many features to the %(trailer)
placeholder in pretty.c. We'll need to access some internal
functions of trailer.c for that, so our options are either:
1. expose those functions publicly
or
2. make an entry point into trailer.c to do the formatting
Doing (2) ends up exposing less surface area, though do note
that caveats in the docstring of the new function.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The last few commits have added command line options that
can turn interpret-trailers into a parsing tool. Since
they'd most often be used together, let's provide a
convenient single option for callers to invoke this mode.
This is implemented as a callback rather than a boolean so
that its effect is applied immediately, as if those options
had been specified. Later options can then override them.
E.g.:
git interpret-trailers --parse --no-unfold
would work.
Let's also update the documentation to make clear that this
parsing mode behaves quite differently than the normal
"add trailers to the input" mode.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
interpret-trailers: add an option to unfold values
The point of "--only-trailers" is to give a caller an output
that's easy for them to parse. Getting rid of the
non-trailer material helps, but we still may see more
complicated syntax like whitespace continuation. Let's add
an option to unfold any continuation, giving the output as a
single "key: value" line per trailer.
As a bonus, this could be used even without --only-trailers
to clean up unusual formatting in the incoming data.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
interpret-trailers: add an option to show only existing trailers
It can be useful to invoke interpret-trailers for the
primary purpose of parsing existing trailers. But in that
case, we don't want to apply existing ifMissing or ifExists
rules from the config. Let's add a special mode where we
avoid applying those rules. Coupled with --only-trailers,
this gives us a reasonable parsing tool.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
interpret-trailers: add an option to show only the trailers
In theory it's easy for any reader who wants to parse
trailers to do so. But there are a lot of subtle corner
cases around what counts as a trailer, when the trailer
block begins and ends, etc. Since interpret-trailers already
has our parsing logic, let's let callers ask it to just
output the trailers.
They still have to parse the "key: value" lines, but at
least they can ignore all of the other corner cases.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
doc: clarify "config --bool" behaviour with empty string
`git config --bool xxx.yyy` returns `true` for `[xxx]yyy` but
`false` for `[xxx]yyy=` or `[xxx]yyy=""`. This is tested in
t1300-repo-config.sh since 09bc098c2.
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `no_changes` function calls the `untracked_files` function through
command substitution. `untracked_files` will return null bytes because it
runs ls-files with the '-z' option.
Bash since version 4.4 warns about these null bytes. As they are not
required for the test that is being done, make sure `untracked_files`
does not output null bytes when not required.
This is achieved by adding a parameter to the `untracked_files` function to
specify wither `-z` should be passed to ls-files or not.
This warning is triggered when running git stash save -u resulting in
two warnings:
git-stash: line 43: warning: command substitution: ignored null byte
in input
Signed-off-by: Kevin Daudt <me@ikke.info> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'ex/deprecate-empty-pathspec-as-match-all' into next
The final step to make an empty string as a pathspec element
illegal. We started this by first deprecating and warning a
pathspec that has such an element in 2.11 (Nov 2016).
Hopefully we can merge this down to the 'master' by the end of the
year? A deprecation warning period that is about 1 year does not
sound too bad.
* ex/deprecate-empty-pathspec-as-match-all:
pathspec: die on empty strings as pathspec
t0027: do not use an empty string as a pathspec element
Merge branch 'bw/grep-recurse-submodules' into next
"git grep --recurse-submodules" has been reworked to give a more
consistent output across submodule boundary (and do its thing
without having to fork a separate process).
* bw/grep-recurse-submodules:
grep: recurse in-process using 'struct repository'
submodule: merge repo_read_gitmodules and gitmodules_config
submodule: check for unmerged .gitmodules outside of config parsing
submodule: check for unstaged .gitmodules outside of config parsing
submodule: remove fetch.recursesubmodules from submodule-config parsing
submodule: remove submodule.fetchjobs from submodule-config parsing
config: add config_from_gitmodules
cache.h: add GITMODULES_FILE macro
repository: have the_repository use the_index
repo_read_index: don't discard the index
* mh/packed-ref-store: (31 commits)
packed_ref_store: handle a packed-refs file that is a symlink
read_packed_refs(): die if `packed-refs` contains bogus data
t3210: add some tests of bogus packed-refs file contents
repack_without_refs(): don't lock or unlock the packed refs
commit_packed_refs(): remove call to `packed_refs_unlock()`
clear_packed_ref_cache(): don't protest if the lock is held
packed_refs_unlock(), packed_refs_is_locked(): new functions
packed_refs_lock(): report errors via a `struct strbuf *err`
packed_refs_lock(): function renamed from lock_packed_refs()
commit_packed_refs(): use a staging file separate from the lockfile
commit_packed_refs(): report errors rather than dying
packed_ref_store: make class into a subclass of `ref_store`
packed-backend: new module for handling packed references
packed_read_raw_ref(): new function, replacing `resolve_packed_ref()`
packed_ref_store: support iteration
packed_peel_ref(): new function, extracted from `files_peel_ref()`
repack_without_refs(): take a `packed_ref_store *` parameter
get_packed_ref(): take a `packed_ref_store *` parameter
rollback_packed_refs(): take a `packed_ref_store *` parameter
commit_packed_refs(): take a `packed_ref_store *` parameter
...
format-patch: have progress option while generating patches
When generating patches for the rebase command, if the user does
not realize the branch they are rebasing onto is thousands of
commits different, there is no progress indication after initial
rewinding message.
The progress meter as presented in this patch assumes the thousands of
patches to have a fine granularity as well as assuming to require all
the same amount of work/time for each, such that a steady progress bar
is achieved.
We do not want to estimate the time for each patch based e.g.
on their size or number of touched files (or parents) as that is too
expensive for just a progress meter.
This patch allows a progress option to be passed to format-patch
so that the user can be informed the progress of generating the
patch. This option is then used by the rebase command when
calling format-patch.
Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
tree-walk: convert fill_tree_descriptor() to object_id
All callers of fill_tree_descriptor() have been converted to object_id
already, so convert that function as well. As a nice side-effect we get
rid of NULL checks in tree-diff.c, as fill_tree_descriptor() already
does them for us.
Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
No code in diff.c sets DIFF_SYMBOL_MOVED_LINE except in
mark_color_as_moved(), so it is redundant to clear it for the current
line. Therefore, clear it only for previous lines.
This makes a refactoring in a subsequent patch easier.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow using non-default values for trailers without having to set
them up in .gitconfig first. For example, if you have the following
configuration
trailer.signed-off-by.where = end
you may use "--where before" when a patch author forgets his
Signed-off-by and provides it in a separate email. Likewise for
--if-exists and --if-missing
Reverting to the behavior specified by .gitconfig is done with
--no-where, --no-if-exists and --no-if-missing.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sign-off added should be that of the "committer", not that of the
"commit's author"; that is how the rest of Git adds sign-off using
sequencer.c::append_signoff().
Use the correct logical variable that identifies the committer.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
http: use a feature check to enable GSSAPI delegation control
Turn the version check into a feature check to ensure this functionality
is also enabled with vendor supported curl versions where the feature
may have been backported.
Signed-off-by: Tom G. Christensen <tgc@jupiterrise.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit aeae4db1 refactored the handling of the curl protocol
restriction support into a function but failed to add a version
check for older versions of curl that lack CURLPROTO_* support.
Add the missing check and at the same time convert it to a feature
check instead of a version based check. This is done to ensure that
vendor supported curl versions that have had CURLPROTO_* support
backported are handled correctly.
Signed-off-by: Tom G. Christensen <tgc@jupiterrise.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If calling git stash -u on a repo that contains a file that is not
ignored any more due to a current modification of the gitignore file,
this file is stashed but not remove from the working tree.
This is due to git-stash first doing a reset --hard which clears the
.gitignore file modification and the call git clean, leaving the file
untouched.
This causes git stash pop to fail due to the file existing.
This patch simply switches the order between cleaning and resetting
and adds a test for this usecase.
Reported-by: Sam Partington <sam@whiteoctober.co.uk> Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move the setting of oi->whence to sha1_loose_object_info() and
packed_object_info().
This allows sha1_object_info_extended() to not need to know about the
delta base cache. This will be useful during a future refactoring in
which packfile-related functions, including the handling of the delta
base cache, will be moved to a separate file.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Notably, let's declare that we aim to make "git add ''" illegal in
the cycle after this one.
The topic to do so, ex/deprecate-empty-pathspec-as-match-all, has
been cooking in 'next' too long, and will stay there during this
cycle, but not after.
The "tag.pager" configuration variable was useless for those who
actually create tag objects, as it interfered with the use of an
editor. A new mechanism has been introduced for commands to enable
pager depending on what operation is being carried out to fix this,
and then "git tag -l" is made to run pager by default.
* ma/pager-per-subcommand-action:
git.c: ignore pager.* when launching builtin as dashed external
tag: change default of `pager.tag` to "on"
tag: respect `pager.tag` in list-mode only
t7006: add tests for how git tag paginates
git.c: provide setup_auto_pager()
git.c: let builtins opt for handling `pager.foo` themselves
builtin.h: take over documentation from api-builtin.txt
"git log --tag=no-such-tag" showed log starting from HEAD, which
has been fixed---it now shows nothing.
* jk/rev-list-empty-input:
revision: do not fallback to default when rev_input_given is set
rev-list: don't show usage when we see empty ref patterns
revision: add rev_input_given flag
t6018: flesh out empty input/output rev-list tests
Because recent Git for Windows do come with a real msgfmt, the
build procedure for git-gui has been updated to use it instead of a
hand-rolled substitute.
* js/git-gui-msgfmt-on-windows:
git-gui (MinGW): make use of MSys2's msgfmt
git gui: allow for a long recentrepo list
git gui: de-dup selected repo from recentrepo history
git gui: cope with duplicates in _get_recentrepo
git-gui: remove duplicate entries from .gitconfig's gui.recentrepo
"git contacts" (in contrib/) now lists the address on the
"Reported-by:" trailer to its output, in addition to those on
S-o-b: and other trailers, to make it easier to notify (and thank)
the original bug reporter.
* eb/contacts-reported-by:
git-contacts: also recognise "Reported-by:"
A recently added test for the "credential-cache" helper revealed
that EOF detection done around the time the connection to the cache
daemon is torn down were flaky. This was fixed by reacting to
ECONNRESET and behaving as if we got an EOF.
* dl/credential-cache-socket-in-xdg-cache:
credential-cache: interpret an ECONNRESET as an EOF
Many uses of comparision callback function the hashmap API uses
cast the callback function type when registering it to
hashmap_init(), which defeats the compile time type checking when
the callback interface changes (e.g. gaining more parameters).
The callback implementations have been updated to take "void *"
pointers and cast them to the type they expect instead.
* sb/hashmap-cleanup:
t/helper/test-hashmap: use custom data instead of duplicate cmp functions
name-hash.c: drop hashmap_cmp_fn cast
submodule-config.c: drop hashmap_cmp_fn cast
remote.c: drop hashmap_cmp_fn cast
patch-ids.c: drop hashmap_cmp_fn cast
convert/sub-process: drop cast to hashmap_cmp_fn
config.c: drop hashmap_cmp_fn cast
builtin/describe: drop hashmap_cmp_fn cast
builtin/difftool.c: drop hashmap_cmp_fn cast
attr.c: drop hashmap_cmp_fn cast
Numerous bugs in walking of reflogs via "log -g" and friends have
been fixed.
* jk/reflog-walk:
reflog-walk: apply --since/--until to reflog dates
reflog-walk: stop using fake parents
rev-list: check reflog_info before showing usage
get_revision_1(): replace do-while with an early return
log: do not free parents when walking reflog
log: clarify comment about reflog cycles
revision: disallow reflog walking with revs->limited
t1414: document some reflog-walk oddities
The filter-process interface learned to allow a process with long
latency give a "delayed" response.
* ls/filter-process-delayed:
convert: add "status=delayed" to filter process protocol
convert: refactor capabilities negotiation
convert: move multiple file filter error handling to separate function
convert: put the flags field before the flag itself for consistent style
t0021: write "OUT <size>" only on success
t0021: make debug log file name configurable
t0021: keep filter log files on comparison
Some versions of GnuPG fails to kill gpg-agent it auto-spawned
and such a left-over agent can interfere with a test. Work it
around by attempting to kill one before starting a new test.
* st/lib-gpg-kill-stray-agent:
t: lib-gpg: flush gpg agent on startup
The http.{sslkey,sslCert} configuration variables are to be
interpreted as a pathname that honors "~[username]/" prefix, but
weren't, which has been fixed.
* jc/http-sslkey-and-ssl-cert-are-paths:
http.c: http.sslcert and http.sslkey are both pathnames
Start using selected c99 constructs in small, stable and
essentialpart of the system to catch people who care about
older compilers that do not grok them.
* jk/c99:
clean.c: use designated initializer
strbuf: use designated initializers in STRBUF_INIT
"%C(color name)" in the pretty print format always produced ANSI
color escape codes, which was an early design mistake. They now
honor the configuration (e.g. "color.ui = never") and also tty-ness
of the output medium.
* jk/ref-filter-colors:
ref-filter: consult want_color() before emitting colors
pretty: respect color settings for %C placeholders
rev-list: pass diffopt->use_colors through to pretty-print
for-each-ref: load config earlier
color: check color.ui in git_default_config()
ref-filter: pass ref_format struct to atom parsers
ref-filter: factor out the parsing of sorting atoms
ref-filter: make parse_ref_filter_atom a private function
ref-filter: provide a function for parsing sort options
ref-filter: move need_color_reset_at_eol into ref_format
ref-filter: abstract ref format into its own struct
ref-filter: simplify automatic color reset
t: use test_decode_color rather than literal ANSI codes
docs/for-each-ref: update pointer to color syntax
check return value of verify_ref_format()
Remove an example that is now obsolete from a sample hook,
and improve an old example in it that added a sign-off manually
to use the interpret-trailers command.
* ks/prepare-commit-msg-sample:
hook: add a simple first example
hook: add sign-off using "interpret-trailers"
hook: name the positional variables
hook: cleanup script
Conversion from uchar[20] to struct object_id continues.
* bc/object-id:
sha1_name: convert uses of 40 to GIT_SHA1_HEXSZ
sha1_name: convert GET_SHA1* flags to GET_OID*
sha1_name: convert get_sha1* to get_oid*
Convert remaining callers of get_sha1 to get_oid.
builtin/unpack-file: convert to struct object_id
bisect: convert bisect_checkout to struct object_id
builtin/update_ref: convert to struct object_id
sequencer: convert to struct object_id
remote: convert struct push_cas to struct object_id
submodule: convert submodule config lookup to use object_id
builtin/merge-tree: convert remaining caller of get_sha1 to object_id
builtin/fsck: convert remaining caller of get_sha1 to object_id
sha1_file: release delta_stack on error in unpack_entry()
When unpack_entry() encounters a broken packed object, it returns early.
It adjusts the reference count of the pack window, but leaks the buffer
for a big delta stack in case the small automatic one was not enough.
Jump to the cleanup code at end instead, which takes care of that.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move the code for releasing tree buffers and commit buffers in
fsck_obj() to the end of the function and make sure it's executed no
matter of an error is encountered or not.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
getdelim(3) returns -1 at the end of the file and if it encounters an
error, but sets errno only in the latter case. Set errno to zero before
calling it to avoid misdiagnosing an out-of-memory condition due to a
left-over value from some other function call.
Reported-by: Yaroslav Halchenko <yoh@onerussian.com> Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
trailer: put process_trailers() options into a struct
We already have two options and are about to add a few more.
To avoid having a huge number of boolean arguments, let's
convert to an options struct which can be passed in.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
v1.2.0~121 (New tutorial, 2006-01-22) rewrote the tutorial such that the
original intent of 2ae6c70674 (Adapt tutorial to cygwin and add test case,
2005-10-13) to test the examples from the tutorial doesn't hold any more.
There are dedicated tests for the commands used, even "git whatchanged",
such that removing these tests doesn't seem like a reduction in test
coverage.
Signed-off-by: Stefan Beller <sbeller@google.com> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sha1_file: drop experimental GIT_USE_LOOKUP search
Long ago in 628522ec14 (sha1-lookup: more memory efficient
search in sorted list of SHA-1, 2007-12-29) we added
sha1_entry_pos(), a binary search that uses the uniform
distribution of sha1s to scale the selection of mid-points.
As this was a performance experiment, we tied it to the
GIT_USE_LOOKUP environment variable and never enabled it by
default.
This code was successful in reducing the number of steps in
each search. But the overhead of the scaling ends up making
it slower when the cache is warm. Here are best-of-five
timings for running rev-list on linux.git, which will have
to look up every object:
$ time git rev-list --objects --all >/dev/null
real 0m35.357s
user 0m35.016s
sys 0m0.340s
$ time GIT_USE_LOOKUP=1 git rev-list --objects --all >/dev/null
real 0m37.364s
user 0m37.045s
sys 0m0.316s
The USE_LOOKUP version might have more benefit on a cold
cache, as the time to fault in each page would dominate. But
that would be for a single lookup. In practice, most
operations tend to look up many objects, and the whole pack
.idx will end up warm.
It's possible that the code could be better optimized to
compete with a naive binary search for the warm-cache case,
and we could have the best of both worlds. But over the
years nobody has done so, and this is largely dead code that
is rarely run outside of the test suite. Let's drop it in
the name of simplicity.
This lets us remove sha1_entry_pos() entirely, as the .idx
lookup code was the only caller. Note that sha1-lookup.c
still contains sha1_pos(), which differs from
sha1_entry_pos() in two ways:
- it has a different interface; it uses a function pointer
to access sha1 entries rather than a size/offset pair
describing the table's memory layout
- it only scales the initial selection of "mi", rather
than each iteration of the search
We can't get rid of this function, as it's called from
several places. It may be that we could replace it with a
simple binary search, but that's out of scope for this patch
(and would need benchmarking).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 1a812f3a70 (hashcmp(): inline memcmp() by hand to
optimize, 2011-04-28), it was reported that an open-coded
loop outperformed memcmp() for comparing sha1s.
Discussion[1] a few years later in 2013 showed that this
depends on your libc's version of memcmp(). In particular,
glibc 2.13 optimized their memcmp around 2011. Here are
current timings with glibc 2.24 (best-of-five, on
linux.git):
[before this patch, open-coded]
$ time git rev-list --objects --all
real 0m35.357s
user 0m35.016s
sys 0m0.340s
[after this patch, memcmp]
real 0m32.930s
user 0m32.630s
sys 0m0.300s
Now that we've had 6 years for that version of glibc to
make its way onto people's machines, it's worth revisiting
our benchmarks and switching to memcmp().
It may be that there are other non-glibc systems where
memcmp() isn't as well optimized. But since our single data
point in favor of open-coding was on a now-ancient glibc, we
should probably assume the system memcmp is good unless
proven otherwise. We may end up with a SLOW_MEMCMP Makefile
knob, but we can hold off on that until we actually find
such a system in practice.
apply: remove prefix_length member from apply_state
Use a NULL-and-NUL check to see if we have a prefix and consistently use
C string functions on it instead of storing its length in a member of
struct apply_state. This avoids strlen() calls and simplifies the code.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/add: add detail to a 'cannot chmod' error message
In addition to adding the missing newline, add the x-ecutable bit
'mode change' character to the error message. This message now has
the same form as similar messages output by 'update-index'.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sha1_file: avoid comparison if no packed hash matches the first byte
find_pack_entry_one() uses the fan-out table of pack indexes to find out
which entries match the first byte of the searched hash and does a
binary search on this subset of the main index table.
If there are no matching entries then lo and hi will have the same
value. The binary search still starts and compares the hash of the
following entry (which has a non-matching first byte, so won't cause any
trouble), or whatever comes after the sorted list of entries.
The probability of that stray comparison matching by mistake is low, but
let's not take any chances and check when entering the binary search
loop if we're actually done already.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
OpenBSD's regex library has a repetition limit (RE_DUP_MAX) of 255.
That's the minimum acceptable value according to POSIX. In t4062 we use
4096 repetitions in the test "-G matches", though, causing it to fail.
Combine two repetition operators, both less than 256, to arrive at 4096
zeros instead of using a single one, to fix the test on OpenBSD.
Original-patch-by: David Coppa <dcoppa@openbsd.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
76e368c378 (t3700: fix broken test under !SANITY) explains that the test
'git add --chmod=[+-]x changes index with already added file' can fail
if xfoo3 is still present as a symlink from a previous test and deletes
it with rm(1). That still leaves it present in the index, which causes
the test to fail if POSIXPERM is not defined. Get rid of it by calling
"git reset --hard" as well, as 76e368c378 already mentioned in passing.
Helped-by: Adam Dinwoodie <adam@dinwoodie.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If there was no 'Signed-off-by:' trailer but another trailer such as
'Reported-by:' then 'git am --signoff' would add a blank line between
the existing trailers and the added 'Signed-off-by:' line. e.g.
Rebase accepts '--rerere-autoupdate' as an option but only honors
it if '-m' is also given. Fix it for a non-interactive rebase by
passing on the option to 'git am' and 'git cherry-pick'.
Reported-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Fix by using the code provided for this purpose in sequencer.c.
Change the tests so that they check the formatting of the
'Signed-off-by:' lines rather than just grepping for them.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git svn fetch: Create correct commit timestamp when using --localtime
In parse_svn_date() prepend the correct UTC offset to the timestamp
returned. This is the offset in effect at the commit time instead of
the offset in effect at calling time.
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de> Reviewed-by: Eric Wong <e@80x24.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool
The only difference between these is that the former takes an argument
`name` which it ignores completely. Still, the callers are quite careful
to provide reasonable values for it.
Once in-flight topics have landed, we should be able to remove
git_config_maybe_bool. In the meantime, document it as deprecated in the
technical documentation. While at it, document git_parse_maybe_bool.
Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
config: make git_{config,parse}_maybe_bool equivalent
Both of these act on a string `value` which they parse as a boolean. The
"parse"-variant was introduced as a replacement for the "config"-variant
which for historical reasons takes an unused argument `name`. That it
was intended as a replacement is not obvious from commit 9a549d43
("config.c: rename git_config_maybe_bool_text and export it as
git_parse_maybe_bool", 2015-08-19), but that is what the background on
the mailing list suggests [1].
However, these two functions do not parse `value` in exactly the same
way. In particular, git_config_maybe_bool accepts integers (0 for false,
non-0 for true). This means there are two slightly different definitions
of "maybe_bool" in the code-base, and that every time a call to
git_config_maybe_bool is changed to use git_parse_maybe_bool, it risks
breaking someone's workflow.
Move the implementation of "config" into "parse" and make the latter a
trivial wrapper.
This also fixes the only user of git_parse_maybe_bool, `git push
--signed=..`.
Commit 9a549d43 ("config.c: rename git_config_maybe_bool_text and export
it as git_parse_maybe_bool", 2015-08-19) intended git_parse_maybe_bool
to be a replacement for git_config_maybe_bool, which could then be
retired. That is not obvious from the commit message, but that is what
the background on the mailing list suggests [1].
However, git_{config,parse}_maybe_bool do not handle all input the same.
Before the rename, that was by design and there is a caller in config.c
which requires git_parse_maybe_bool to behave exactly as it does.
Prepare for the next patch by renaming git_parse_maybe_bool to ..._text
and reimplementing the first one as a simple call to the second one. Let
the existing users in config.c use ..._text, since it does what they
need.
t5334: document that git push --signed=1 does not work
When accepting booleans as command-line or config options throughout
Git, there are several documented synonyms for true and false.
However, one particular user is slightly broken: `git push --signed=..`
does not understand the integer synonyms for true and false.
This is hardly wanted. The --signed option has a different notion of
boolean than all other arguments and config options, including the
config option corresponding to it, push.gpgSign.
Add a test documenting the failure to handle --signed=1.
Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Doc/git-{push,send-pack}: correct --sign= to --signed=
Since we're about to touch the behavior of --signed=, do this as a
preparatory step.
The documentation mentions --sign=, and it works. But that's just
because it's an unambiguous abbreviation of --signed, which is how it is
actually implemented. This was added in commit 30261094 ("push: support
signing pushes iff the server supports it", 2015-08-19). Back when that
series was developed [1] [2], there were suggestions about both --sign=
and --signed=. The final implementation settled on --signed=, but some
of the documentation and commit messages ended up using --sign=.
The option is referred to as --signed= in Documentation/config.txt
(under push.gpgSign).
One could argue that we have promised --sign for two years now, so we
should implement it as an alias for --signed. (Then we might also
deprecate the latter, something which was considered already then.) That
would be a slightly more intrusive change.
This minor issue would only be a problem once we want to implement some
other option --signfoo, but the earlier we do this step, the better.
We want to make sure that people who copy & paste code would see
fewer instances of "git-foo". The use of these dashed forms have
been discouraged since v1.6.0 days.
Signed-off-by: Michael Forney <mforney@mforney.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
test-path-utils: handle const parameter of basename and dirname
The parameter to basename(3) and dirname(3) traditionally had the type
"char *", but on OpenBSD it's been "const char *" for years. That
causes (at least) Clang to throw an incompatible-pointer-types warning
for test-path-utils, where we try to pass around pointers to these
functions.
Avoid this warning (which is fatal in DEVELOPER mode) by ignoring the
promise of OpenBSD's implementations to keep input strings unmodified
and enclosing them in POSIX-compatible wrappers.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t0001: skip test with restrictive permissions if getpwd(3) respects them
The sub-test "init in long base path" in t0001 checks the ability to
handle long base paths with restrictive permissions (--x). On OpenBSD
getcwd(3) fails in that case even for short paths. Check the two
aspects separately by trying to use a long base path both with and
without execute-only permissions. Only attempt the former if we know
that getcwd(3) doesn't care.
Original-patch-by: David Coppa <dcoppa@openbsd.org> Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
tests: don't give unportable ">" to "test" built-in, use -gt
Change an argument to test_line_count (which'll ultimately be turned
into a "test" expression) to use "-gt" instead of ">" for an
arithmetic test.
This broken on e.g. OpenBSD as of v2.13.0 with my commit ac3f5a3468 ("ref-filter: add --no-contains option to
tag/branch/for-each-ref", 2017-03-24).
Downstream just worked around it by patching git and didn't tell us
about it, I discovered this when reading various Git packaging
implementations: https://github.com/openbsd/ports/commit/7e48bf88a20
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>