The list_modified function already knows how to handle an
unborn branch by diffing against the empty tree. However,
the diff we perform to get the actual hunks does not. Let's
use the same logic for both diffs.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `git_open_noatime` helper can be of general interest for other
consumers of git's different on-disk formats.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit enables users of `struct rev_info` to peform custom limiting
during a revision walk (i.e. `get_revision`).
If the field `include_check` has been set to a callback, this callback
will be issued once for each commit before it is added to the "pending"
list of the revwalk. If the include check returns 0, the commit will be
marked as added but won't be pushed to the pending list, effectively
limiting the walk.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As the pack-objects system grows beyond the single
pack-objects.c file, more parts (like the soon-to-exist
bitmap code) will need to compute hashes for matching
deltas. Factor out name_hash to make it available to other
files.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The hash table that stores the packing list for a given `pack-objects`
run was tightly coupled to the pack-objects code.
In this commit, we refactor the hash table and the underlying storage
array into a `packing_data` struct. The functionality for accessing and
adding entries to the packing list is hence accessible from other parts
of Git besides the `pack-objects` builtin.
This refactoring is a requirement for further patches in this series
that will require accessing the commit packing list from outside of
`pack-objects`.
The hash table implementation has been minimally altered: we now
use table sizes which are always a power of two, to ensure a uniform
index distribution in the array.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow users to efficiently lookup consecutive entries that are expected
to be found on the same revindex by exporting `find_revindex_position`:
this function takes a pointer to revindex itself, instead of looking up
the proper revindex for a given packfile on each call.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We are passed a "void *" and write it out without ever
touching it; let's indicate that by using "const".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we move away from a detached HEAD that has broken or
corrupted commits, we might die in two places:
1. Printing the "old HEAD was..." message.
2. Printing the list of orphaned commits.
In both cases, we ignore the return value of parse_commit
and feed the resulting commit to the pretty-print machinery,
which will die() upon failing to read the commit object
itself.
Since both cases are ancillary to the real operation being
performed, let's be more robust and keep going. This lets
users more easily checkout away from broken history.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many calls to parse_commit detect errors and die. In some
cases, the custom error messages are more useful than what
parse_commit_or_die could produce, because they give some
context, like which ref the commit came from. Some, however,
just say "invalid commit". Let's convert the latter to use
parse_commit_or_die; its message is slightly more informative,
and it makes the error more consistent throughout git.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some unchecked calls to parse_commit should obviously die on
error, because their next step is to start looking at the
parsed fields, which will cause a segfault. These are
obvious candidates for parse_commit_or_die, which will be a
strict improvement in behavior.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The parse_commit function will check whether it was passed a
NULL commit pointer, and if so, return an error. There is no
need for callers to check this separately.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The parse_commit function will check the "parsed" flag of
the object and do nothing if it is set. There is no need
for callers to check the flag themselves, and doing so only
clutters the code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We currently call parse_commit and then assume we can
dereference the resulting "tree" struct field. If parsing
failed, however, that field is NULL and we end up
segfaulting.
Instead of a segfault, let's print an error message and die
a little more gracefully.
Note that this should never happen in practice, but may
happen in a corrupt repository.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In shorten_unambiguous_ref, we build and cache a reverse-map of the
rev-parse rules like this:
static char **scanf_fmts;
static int nr_rules;
if (!nr_rules) {
for (; ref_rev_parse_rules[nr_rules]; nr_rules++)
... generate scanf_fmts ...
}
where ref_rev_parse_rules is terminated with a NULL pointer.
Compiling with "gcc -O2 -Wall" does not cause any problems, but
compiling with "-O3 -Wall" generates:
$ make CFLAGS='-O3 -Wall' refs.o
refs.c: In function ‘shorten_unambiguous_ref’:
refs.c:3379:29: warning: array subscript is above array bounds [-Warray-bounds]
for (; ref_rev_parse_rules[nr_rules]; nr_rules++)
Curiously, we can silence this by explicitly nr_rules to 0
in the beginning of the loop, even though the compiler
should be able to tell that we follow this code path only
when nr_rules is already 0.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The extra semi-colon is harmless, since we really do want
the while loop to do nothing. But it does trigger a warning
from clang.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The said function has this signature:
extern int checkout_entry(struct cache_entry *ce,
const struct checkout *state,
char *topath);
At first glance, it might appear that the caller of checkout_entry()
can specify to which path the contents are written out by the last
parameter, and it is tempting to add "const" in front of its type.
In reality, however, topath[] is to point at a buffer to store the
temporary path generated by the callchain originating from this
function, and the temporary path is always short, much shorter than
the buffer prepared by its only caller in builtin/checkout-index.c.
Document the code a bit to clarify so that future callers know how
to use the function better.
Noticed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old code does not do boundary check so any paths longer than
PATH_MAX can cause buffer overflow. Replace it with strbuf to handle
paths of arbitrary length.
The OS may reject if the path is too long though. But in that case we
report the cause (e.g. name too long) and usually move on to checking
out the next entry.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 1bbcc224 ("http: refactor options to http_get_*", 28-09-2013)
changed the type of final 'options' argument of the http_get_file()
function from an int to an 'struct http_get_options' pointer.
However, it neglected to update the (single) call site. Since this
call was passing '0' to that argument, it was (correctly) being
interpreted as a null pointer. Change to argument to NULL.
Noticed by sparse. ("Using plain integer as NULL pointer")
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rename "refs" -> "refspecs" and "ref_count" -> "refspec_count" to
reduce confusion, because they describe an array of "struct refspec",
as opposed to the "struct ref" objects that are also used in this
function.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Replace reference to function parse_ref_spec() with references to
functions parse_fetch_refspec() and parse_push_refspec().
* Correct description of src and dst: they *do* include the '*'
characters.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git fetch --prune --tags" is currently interpreted as follows:
* "--tags" is equivalent to specifying a refspec
"refs/tags/*:refs/tags/*", and supersedes any default refspecs
configured via remote.$REMOTE.fetch.
* "--prune" only operates on the refspecs being fetched.
Therefore, "git fetch --prune --tags" prunes tags in refs/tags/* but
does not fetch or prune other references. The fact that this command
does not prune references outside of refs/tags/* was previously
untested. So add a test that verifies the status quo.
However, the status quo is surprising, so it will be changed later in
this patch series.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git fetch" was being used with contrived refspecs to create tags and
remote-tracking branches in test repositories in preparation for the
actual tests. This is obscure and also makes one wonder whether this
is indeed just preparation or whether some side-effect of "git fetch"
is being tested.
So use the more straightforward commands "git tag" / "git update-ref"
when preparing branches in test repositories.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix an apparent copy-paste error: A few lines earlier, a tag
"refs/tags/sometag" is created. Check for the (non-)existence of that
tag, not "somebranch", which is otherwise never mentioned in the
script.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --octopus, --independent and --is-ancestor are mutually
exclusive command modes (in addition to not giving any of these
options), so represent them as such using the recent OPT_CMDMODE
facility available since 11588263 (parse-options: add OPT_CMDMODE(),
2013-07-30), which is in v1.8.4-82-g366b80b. --all is compatible
only with plain vanilla mode and --octopus mode, and the minimum
number of arguments the command takes depends on the command modes,
so these are now separately checked in each command mode.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git ls-files -k" needs to crawl only the part of the working tree
that may overlap the paths in the index to find killed files, but
shared code with the logic to find all the untracked files, which
made it unnecessarily inefficient.
* jc/ls-files-killed-optim:
dir.c::test_one_path(): work around directory_exists_in_index_icase() breakage
t3010: update to demonstrate "ls-files -k" optimization pitfalls
ls-files -k: a directory only can be killed if the index has a non-directory
dir.c: use the cache_* macro to access the current index
"git branch --track" had a minor regression in v1.8.3.2 and later
that made it impossible to base your local work on anything but a
local branch of the upstream repository you are tracking from.
* jh/checkout-auto-tracking:
t3200: fix failure on case-insensitive filesystems
branch.c: Relax unnecessary requirement on upstream's remote ref name
t3200: Add test demonstrating minor regression in 41c21f2
Refer to branch.<name>.remote/merge when documenting --track
t3200: Minor fix when preparing for tracking failure
t2024: Fix &&-chaining and a couple of typos
When there is no sufficient overlap between old and new history
during a "git fetch" into a shallow repository, objects that the
sending side knows the receiving end has were unnecessarily sent.
* nd/fetch-into-shallow:
Add testcase for needless objects during a shallow fetch
list-objects: mark more commits as edges in mark_edges_uninteresting
list-objects: reduce one argument in mark_edges_uninteresting
upload-pack: delegate rev walking in shallow fetch to pack-objects
shallow: add setup_temporary_shallow()
shallow: only add shallow graft points to new shallow file
move setup_alternate_shallow and write_shallow_commits to shallow.c
Cleanups and tweaks for credential handling to work with ancient versions
of the gnome-keyring library that are still in use.
* bc/gnome-keyring:
contrib/git-credential-gnome-keyring.c: support really ancient gnome-keyring
contrib/git-credential-gnome-keyring.c: support ancient gnome-keyring
contrib/git-credential-gnome-keyring.c: report failure to store password
contrib/git-credential-gnome-keyring.c: use glib messaging functions
contrib/git-credential-gnome-keyring.c: use glib memory allocation functions
contrib/git-credential-gnome-keyring.c: use secure memory for reading passwords
contrib/git-credential-gnome-keyring.c: use secure memory functions for passwds
contrib/git-credential-gnome-keyring.c: use gnome helpers in keyring_object()
contrib/git-credential-gnome-keyring.c: set Gnome application name
contrib/git-credential-gnome-keyring.c: ensure buffer is non-empty before accessing
contrib/git-credential-gnome-keyring.c: strlen() returns size_t, not ssize_t
contrib/git-credential-gnome-keyring.c: exit non-zero when called incorrectly
contrib/git-credential-gnome-keyring.c: add static where applicable
contrib/git-credential-gnome-keyring.c: *style* use "if ()" not "if()" etc.
contrib/git-credential-gnome-keyring.c: remove unused die() function
contrib/git-credential-gnome-keyring.c: remove unnecessary pre-declarations
Explain how '.' can be used to refer to the "current repository"
in the documentation.
* po/dot-url:
doc/cli: make "dot repository" an independent bullet point
config doc: update dot-repository notes
doc: command line interface (cli) dot-repository dwimmery
"git cherry-pick" without further options would segfault.
Could use a follow-up to handle '-' after argv[1] better.
* hu/cherry-pick-previous-branch:
cherry-pick: handle "-" after parsing options
Make "git grep" and "git show" pay attention to --textconv when
dealing with blob objects.
* mg/more-textconv:
grep: honor --textconv for the case rev:path
grep: allow to use textconv filters
t7008: demonstrate behavior of grep with textconv
cat-file: do not die on --textconv without textconv filters
show: honor --textconv for blobs
diff_opt: track whether flags have been set explicitly
t4030: demonstrate behavior of show with textconv
git-fast-import documentation says that paths can be C-style quoted.
Unfortunately, the current remote-hg helper doesn't unquote quoted
path and pass them as-is to Mercurial when the commit is created.
This results in the following situation:
- clone a mercurial repository with git
- add a file with space in a directory: `>dir/foo\ bar`
- commit that new file, and push the change to mercurial
- the mercurial repository now has a new directory named '"dir',
which contains a file named 'foo bar"'
Use Python str.decode('string-escape') to unquote the string if it
starts and ends with ". It has been tested with quotes, spaces, and
utf-8 encoded file-names.
Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In send_pack(), clear the fd passed to pack_objects() by setting
it to -1, since pack_objects() closes the fd (via a call to
run_command()). Likewise, in get_pack(), clear the fd passed to
run_command().
Not doing so risks having git_transport_push(), caller of
send_pack(), closing the fd again, possibly incorrectly closing
some other open file; or similarly with fetch_refs_from_pack(),
indirect caller of get_pack().
Signed-off-by: Jens Lindström <jl@opera.com>
Acked-by: Jeff King <peff@peff.net>
Acked-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that ad0e623 (test-lib: support running tests under valgrind in
parallel, 2013-06-23) has been reverted, this support code has no
users any more. Revert it, too.
This reverts commit e939e15d24.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This reverts commit ad0e623332.
--valgrind-parallel was broken from the start: during review I made
the whole valgrind setup code conditional on not being a
--valgrind-parallel worker child. But even the children crucially
need $GIT_VALGRIND to be set; it should therefore have been set
outside the conditional.
The fix would be a two-liner, but since the introduction of the
feature, almost four months have passed without anyone noticing that
it is broken. So this feature is not worth the about hundred lines of
test-lib.sh complexity. Revert it.
Signed-off-by: Thomas Rast <tr@thomasrast.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
While I can understand 4 or 7 white spaces are fancy, we'd rather want
to use tabs throughout the whole document.
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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>
* jk/clone-progress-to-stderr:
clone: always set transport options
clone: treat "checking connectivity" like other progress
clone: send diagnostic messages to stderr
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>
The gitk manpage suffers from a bit of neglect: there have been only
minor changes, and no changes to the set of options documented, since
a2df1fb (Documentation: New GUI configuration and command-line
options., 2008-11-13). In the meantime, the set of rev-list options
has been expanded several times by options that are useful in gitk,
e.g., --ancestry-path and the optional globbing for --branches, --tags
and --remotes.
Restructure and expand the manpage. List more options that the author
perceives as useful, while remaining somewhat terse. Ideally the user
should not have to look up any of the references, but we dispense with
precise explanations in some places and refer to git-log(1) instead.
Note that the options that have an easy GUI equivalent (e.g.,
--word-diff, -S, --grep) are deliberately not listed even in the cases
where they simply fill in the GUI fields.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This updates the documentation regarding the changes introduced
by a1bbc6c01 (2013-09-15, repack: rewrite the shell script in C).
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When parse_pathspec() is called with no paths, the behavior could be
either return no paths, or return one path that is cwd. Some commands
do the former, some the latter. parse_pathspec() itself does not make
either the default and requires the caller to specify either flag if
it may run into this situation.
I've grep'd through all parse_pathspec() call sites. Some pass
neither, but those are guaranteed never pass empty path to
parse_pathspec(). There are two call sites that may pass empty path
and are fixed with this patch.
[jc: added a test from Antoine's bug report]
Reported-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Document rules to use GIT_REFLOG_ACTION variable in the scripted
Porcelain. git-rebase--interactive locally violates them, but it
is a leaf user that does not call out to or dot-source other
scripts, so it does not urgently need to be fixed.
* jc/reflog-doc:
setup_reflog_action: document the rules for using GIT_REFLOG_ACTION
