push: clarify rejection of update to non-commit-ish
Pushes must already (by default) update to a commit-ish due to the fast-
forward check in set_ref_status_for_push(). But rejecting for not being
a fast-forward suggests the situation can be resolved with a merge.
Flag these updates (i.e., to a blob or a tree) as not forwardable so the
user is presented with more appropriate advice.
While updating *from* a tag object is potentially destructive, updating
*to* a tag is not. Additionally, a push to the refs/tags/ hierarchy is
already excluded from fast-forwarding, and refs/heads/ is protected from
anything but commit objects by a check in write_ref_sha1(). Thus
someone fast-forwarding to a tag is probably not doing so by accident.
Since updating to a tag is benign and unlikely to cause confusion, allow
it in case someone finds the behavior useful.
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Do not allow fast-forwarding of references that point to a tag object.
Updating from a tag is potentially destructive since it would likely
leave the tag dangling. Disallowing updates to a tag also makes sense
semantically and is consistent with the behavior of lightweight tags.
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
References are allowed to update from one commit-ish to another if the
former is an ancestor of the latter. This behavior is oriented to
branches which are expected to move with commits. Tag references are
expected to be static in a repository, though, thus an update to
something under refs/tags/ should be rejected unless the update is
forced.
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a flag for indicating an update to a reference requires force.
Currently the `nonfastforward` flag is used for this when generating the
status message. A separate flag insulates dependent logic from the
details of set_ref_status_for_push().
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the reference exists on the remote and it is not being removed, then
mark as an update. This is in preparation for handling tags (lightweight
and annotated) exceptionally.
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Advising the user to fetch and merge only makes sense if the rejected
reference is a branch. If none of the rejections are for branches, just
tell the user the reference already exists.
Signed-off-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Code cleanups so that libgit.a does not depend on anything in the
builtin/ directory.
* nd/builtin-to-libgit:
fetch-pack: move core code to libgit.a
fetch-pack: remove global (static) configuration variable "args"
send-pack: move core code to libgit.a
Move setup_diff_pager to libgit.a
Move print_commit_list to libgit.a
Move estimate_bisect_steps to libgit.a
Move try_merge_command and checkout_fast_forward to libgit.a
Sometimes curl_multi_timeout() function suggested a wrong timeout
value when there is no file descriptors to wait on and the http
transport ended up sleeping for minutes in select(2) system call.
Detect this and reduce the wait timeout in such a case.
* sz/maint-curl-multi-timeout:
Fix potential hang in https handshake
* mo/cvs-server-cleanup:
Use character class for sed expression instead of \s
cvsserver status: provide real sticky info
cvsserver: cvs add: do not expand directory arguments
cvsserver: use whole CVS rev number in-process; don't strip "1." prefix
cvsserver: split up long lines in req_{status,diff,log}
cvsserver: clean up client request handler map comments
cvsserver: remove unused functions _headrev and gethistory
cvsserver update: comment about how we shouldn't remove a user-modified file
cvsserver: add comments about database schema/usage
cvsserver: removed unused sha1Or-k mode from kopts_from_path
cvsserver t9400: add basic 'cvs log' test
"git send-email --compose" can let the user create a non-ascii
cover letter message, but there was not a way to mark it with
appropriate content type before sending it out.
Further updates fix subject quoting.
* km/send-email-compose-encoding:
git-send-email: add rfc2047 quoting for "=?"
git-send-email: introduce quote_subject()
git-send-email: skip RFC2047 quoting for ASCII subjects
git-send-email: use compose-encoding for Subject
git-send-email: introduce compose-encoding
Fixes many rfc2047 quoting issues in the output from format-patch.
* js/format-2047:
format-patch tests: check quoting/encoding in To: and Cc: headers
format-patch: fix rfc2047 address encoding with respect to rfc822 specials
format-patch: make rfc2047 encoding more strict
format-patch: introduce helper function last_line_length()
format-patch: do not wrap rfc2047 encoded headers too late
format-patch: do not wrap non-rfc2047 headers too early
utf8: fix off-by-one wrapping of text
When "update-ref -d --no-deref SYM" tried to delete a symbolic ref
SYM, it incorrectly locked the underlying reference pointed by SYM,
not the symbolic ref itself.
* rs/lock-correct-ref-during-delete:
refs: lock symref that is to be deleted, not its target
Start laying the foundation to build the "wildmatch" after we can
agree on its desired semantics.
* nd/attr-match-optim-more:
attr: more matching optimizations from .gitignore
gitignore: make pattern parsing code a separate function
exclude: split pathname matching code into a separate function
exclude: fix a bug in prefix compare optimization
exclude: split basename matching code into a separate function
exclude: stricten a length check in EXC_FLAG_ENDSWITH case
A symbolic ref refs/heads/SYM was not correctly removed with
"git branch -d SYM"; the command removed the ref pointed by
SYM instead.
* rs/branch-del-symref:
branch: show targets of deleted symrefs, not sha1s
branch: skip commit checks when deleting symref branches
branch: delete symref branch, not its target
branch: factor out delete_branch_config()
branch: factor out check_branch_commit()
"git log -F -E --grep='<ere>'" failed to use the given <ere>
pattern as extended regular expression, and instead looked for the
string literally. The early part of this series is a fix for it;
the latter part teaches log to respect the grep.* configuration.
* jc/grep-pcre-loose-ends:
log: honor grep.* configuration
log --grep: accept --basic-regexp and --perl-regexp
log --grep: use the same helper to set -E/-F options as "git grep"
revisions: initialize revs->grep_filter using grep_init()
grep: move pattern-type bits support to top-level grep.[ch]
grep: move the configuration parsing logic to grep.[ch]
builtin/grep.c: make configuration callback more reusable
If you remove a submodule, in order to keep the repository so that
"git checkout" to an older commit in the superproject history can
resurrect the submodule, the real repository will stay in $GIT_DIR
of the superproject. A later "git submodule add $path" to add a
different submodule at the same path will fail. Diagnose this case
a bit better, and if the user really wants to add an unrelated
submodule at the same path, give the "--name" option to give it a
place in $GIT_DIR of the superproject that does not conflict with
the original submodule.
* jl/submodule-add-by-name:
submodule add: Fail when .git/modules/<name> already exists unless forced
Teach "git submodule add" the --name option
"git rm submodule" cannot blindly remove a submodule directory as
its working tree may have local changes, and worse yet, it may even
have its repository embedded in it. Teach it some special cases
where it is safe to remove a submodule, specifically, when there is
no local changes in the submodule working tree, and its repository
is not embedded in its working tree but is elsewhere and uses the
gitfile mechanism to point at it.
* jl/submodule-rm:
submodule: teach rm to remove submodules unless they contain a git directory
fetch_pack() is used by transport.c, part of libgit.a while it stays
in builtin/fetch-pack.c. Move it to fetch-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
When renaming orig_args to orig_flags in 98dbe63d (submodule: only
preserve flags across recursive status/update invocations) the call site
of the recursive cmd_status was forgotten. At that place orig_args is
still passed into the recursion, which is always empty since then. This
did not break anything because the orig_flags logic is not needed at all
when a function from the submodule script is called with eval, as that
inherits all the variables set by the option parsing done in the first
level of the recursion.
Now that we know that orig_flags and orig_args aren't needed at all,
let's just remove them from cmd_status().
Thanks-to: Phil Hord <hordp@cisco.com> Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Jeff King <peff@peff.net>
A test in t7404-submodule-foreach purports to test that
the --cached flag is properly noticed by --recursive calls
to the foreach command as it descends into nested
submodules. However, the test really does not perform this
test since the change it looks for is in a top-level
submodule handled by the first invocation of the command.
To properly test for the flag being passed to recursive
invocations, the change must be buried deeper in the
hierarchy.
Move the change one level deeper so it properly verifies
the recursive machinery of the 'git submodule status'
command.
Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Jeff King <peff@peff.net>
send_pack() is used by transport.c, part of libgit.a while it stays in
builtin/send-pack.c. Move it to send-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
This is used by diff-no-index.c, part of libgit.a while it stays in
builtin/diff.c. Move it to diff.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.
While at it, move check_pager from git.c to pager.c. It makes more
sense there and pager.c is also part of libgit.a
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
This is used by bisect.c, part of libgit.a while it stays in
builtin/rev-list.c. Move it to commit.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
This function is used by bisect.c, part of libgit.a while
estimate_bisect_steps stays in builtin/rev-list.c. Move it to bisect.a
so we won't have undefine reference if a standalone program that uses
libgit.a happens to pull it in.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
Move try_merge_command and checkout_fast_forward to libgit.a
These functions are called in sequencer.c, which is part of
libgit.a. This makes libgit.a potentially require builtin/merge.c for
external git commands.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
parse_dirstat_params(): use string_list to split comma-separated string
Use string_list_split_in_place() to split the comma-separated
parameters string. This simplifies the code and also fixes a bug: the
old code made calls like
memcmp(p, "lines", p_len)
which needn't work if p_len is different than the length of the
constant string (and could illegally access memory if p_len is larger
than the length of the constant string).
When p_len was less than the length of the constant string, the old
code would have allowed some abbreviations to be accepted (e.g., "cha"
for "changes") but this seems to have been a bug rather than a
feature, because (1) it is not documented; (2) no attempt was made to
handle ambiguous abbreviations, like "c" for "changes" vs
"cumulative".
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jeff King <peff@peff.net>
Documentation: improve the example of overriding LESS via core.pager
You can override an option set in the LESS variable by simply prefixing
the command line option with `-+`. This is more robust than the previous
example if the default LESS options are to ever change.
Signed-off-by: Patrick Palka <patrick@parcs.ath.cx> Signed-off-by: Jeff King <peff@peff.net>
t9200 defines $CVSROOT where cvs should init its repository
$CVSROOT is set to $PWD/cvsroot.
cvs init is supposed to create the repository inside $PWD/cvsroot/CVSROOT
"cvs init" (e.g. version 1.11.23) checks if the last element of the path is
"CVSROOT", and if a directory with e.g. $PWD/cvsroot/CVSROOT already exists.
For such a $CVSROOT cvs refuses to init a repository here:
"Cannot initialize repository under existing CVSROOT:
On a case insenstive file system cvsroot and CVSROOT are the same directories
and t9200 fails.
Solution: use $PWD/tmpcvsroot instead of cvsroot $PWD/cvsroot
Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Jeff King <peff@peff.net>
AddressSanitizer (http://clang.llvm.org/docs/AddressSanitizer.html)
complains of a one-byte buffer underflow in parse_name_and_email() while
running the test suite. And indeed, if one of the lines in the mailmap
begins with '<', we dereference the address just before the beginning of
the buffer when looking for whitespace to remove, before checking that
we aren't going too far.
So reverse the order of the tests to make sure that we don't read
outside the buffer.
Signed-off-by: Romain Francoise <romain@orebokech.com> Signed-off-by: Jeff King <peff@peff.net>
This change was already done by 0e615b252f3 (Matthieu Moy, Tue Nov 2
2010, Replace "remote tracking" with "remote-tracking"), but new
instances of remote tracking (without dash) were introduced in the
meantime.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Jeff King <peff@peff.net>
Speeds up "git upload-pack" (what is invoked by "git fetch" on the
other side of the connection) by reducing the cost to advertise the
branches and tags that are available in the repository.
* jk/peel-ref:
upload-pack: use peel_ref for ref advertisements
peel_ref: check object type before loading
peel_ref: do not return a null sha1
peel_ref: use faster deref_tag_noverify
* fa/remote-svn:
Add a test script for remote-svn
remote-svn: add marks-file regeneration
Add a svnrdump-simulator replaying a dump file for testing
remote-svn: add incremental import
remote-svn: Activate import/export-marks for fast-import
Create a note for every imported commit containing svn metadata
vcs-svn: add fast_export_note to create notes
Allow reading svn dumps from files via file:// urls
remote-svn, vcs-svn: Enable fetching to private refs
When debug==1, start fast-import with "--stats" instead of "--quiet"
Add documentation for the 'bidi-import' capability of remote-helpers
Connect fast-import to the remote-helper via pipe, adding 'bidi-import' capability
Add argv_array_detach and argv_array_free_detached
Add svndump_init_fd to allow reading dumps from arbitrary FDs
Add git-remote-testsvn to Makefile
Implement a remote helper for svn in C
The quote_rfc2047() always adds RFC2047 quoting. To avoid
quoting ASCII subjects, before calling quote_rfc2047()
subject must be tested for non-ASCII characters. This patch
introduces a new quote_subject() function, which performs
the test and calls quote_rfc2047 only if necessary.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Jeff King <peff@peff.net>
git-send-email: skip RFC2047 quoting for ASCII subjects
The git-send-email always use RFC2047 subject quoting for
files with "broken" encoding - non-ASCII files without
Content-Transfer-Encoding, even for ASCII subjects. This is
harmless but unnecessarily ugly for people reading the raw
headers. This patch skips rfc2047 quoting when the subject
does not need it.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Jeff King <peff@peff.net>
The commit "git-send-email: introduce compose-encoding" introduced
the compose-encoding option to specify the introduction email encoding
(--compose option), but the email Subject encoding was still hardcoded
to UTF-8.
Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: Jeff King <peff@peff.net>
git pull --rebase does some clever tricks to find the base
for $upstream, but it forgets that we may not have any
branch at all. When this happens, git merge-base reports its
"usage" help in the middle of an otherwise successful
rebase operation, because git-merge is called with one too
few parameters.
Since we do not need the merge-base trick in the case of a
detached HEAD, detect this condition and bypass the clever
trick and the usage noise.
Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Jeff King <peff@peff.net>
It has been observed that curl_multi_timeout may return a very long
timeout value (e.g., 294 seconds and some usec) just before
curl_multi_fdset returns no file descriptors for reading. The
upshot is that select() will hang for a long time -- long enough for
an https handshake to be dropped. The observed behavior is that
the git command will hang at the terminal and never transfer any
data.
This patch is a workaround for a probable bug in libcurl. The bug
only seems to manifest around a very specific set of circumstances:
- curl version (from curl/curlver.h):
#define LIBCURL_VERSION_NUM 0x071307
- git-remote-https running on an ubuntu-lucid VM.
- Connecting through squid proxy running on another VM.
Interestingly, the problem doesn't manifest if a host connects
through squid proxy running on localhost; only if the proxy is on
a separate VM (not sure if the squid host needs to be on a separate
physical machine). That would seem to suggest that this issue
is timing-sensitive.
This patch is more or less in line with a recommendation in the
curl docs about how to behave when curl_multi_fdset doesn't return
and file descriptors:
tree-walk: use enum interesting instead of integer
Commit d688cf0 (tree_entry_interesting(): give meaningful names to
return values - 2011-10-24) converts most of the tree_entry_interesting
values to the new enum, except "never_interesting". This completes the
conversion.
filter-branch: use git-sh-setup's ident parsing functions
This saves us some code, but it also reduces the number of
processes we start for each filtered commit. Since we can
parse both author and committer in the same sed invocation,
we save one process. And since the new interface avoids tr,
we save 4 processes.
It also avoids using "tr", which has had some odd
portability problems reported with from Solaris's xpg6
version.
We also tweak one of the tests in t7003 to double-check that
we are properly exporting the variables (because test-lib.sh
exports GIT_AUTHOR_NAME, it will be automatically exported
in subprograms. We override this to make sure that
filter-branch handles it properly itself).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The only ident-parsing function we currently provide is
get_author_ident_from_commit. This is not very
flexible for two reasons:
1. It takes a commit as an argument, and can't read from
commit headers saved on disk.
2. It will only parse authors, not committers.
This patch provides a more flexible interface which will
parse multiple idents from a commit provide on stdin. We can
easily use it as a building block for the current function
to retain compatibility.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
You can currently set the output format to --short or
--porcelain. There is no --long, because we default to it
already. However, you may want to override an alias that
uses "--short" to get back to the default.
This requires a little bit of refactoring, because currently
we use STATUS_FORMAT_LONG internally to mean the same as
"the user did not specify anything". By expanding the enum
to include STATUS_FORMAT_NONE, we can distinguish between
the implicit and explicit cases. This effects these
conditions:
1. The user has asked for NUL termination. With NONE, we
currently default to turning on the porcelain mode.
With an explicit --long, we would in theory use NUL
termination with the long mode, but it does not support
it. So we can just complain and die.
2. When an output format is given to "git commit", we
default to "--dry-run". This behavior would now kick in
when "--long" is given, too.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
branch: show targets of deleted symrefs, not sha1s
git branch reports the abbreviated hash of the head commit of
a deleted branch to make it easier for a user to undo the
operation. For symref branches this doesn't help. Print the
symref target instead for them.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
branch: skip commit checks when deleting symref branches
Before a branch is deleted, we check that it points to a valid
commit. With -d we also check that the commit is a merged; this
check is not done with -D.
The reason for that is that commits pointed to by branches should
never go missing; if they do then something broke and it's better
to stop instead of adding to the mess. And a non-merged commit
may contain changes that are worth preserving, so we require the
stronger option -D instead of -d to get rid of them.
If a branch consists of a symref, these concerns don't apply.
Deleting such a branch can't make a commit become unreferenced,
so we don't need to check if it is merged, or even if it is
actually a valid commit. Skip them in that case. This allows
us to delete dangling symref branches.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a branch that is to be deleted happens to be a symref to another
branch, the current code removes the targeted branch instead of the
one it was called for.
Change this surprising behaviour and delete the symref branch
instead.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch tests: check quoting/encoding in To: and Cc: headers
git-format-patch does currently not parse user supplied extra header
values (e. g., --cc, --add-header) and just replays them. That forces
users to add them RFC 2822/2047 conform in encoded form, e.g.
which is inconvenient. We would want to update git-format-patch to
accept human-readable input
--cc 'Jan H. Schönherr <...>'
and handle the encoding, wrapping and quoting internally in the future,
similar to what is already done in git-send-email. The necessary code
should mostly exist in the code paths that handle the From: and Subject:
headers.
Whether we want to do this only for the git-format-patch options
--to and --cc (and the corresponding config options) or also for
user supplied headers via --add-header, is open for discussion.
For now, add test_expect_failure tests for To: and Cc: headers as a
reminder and fix tests that would otherwise fail should this get
implemented.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch: fix rfc2047 address encoding with respect to rfc822 specials
According to RFC 2047 and RFC 822, rfc2047 encoded words and and rfc822
quoted strings do not mix. Since add_rfc2047() no longer leaves RFC 822
specials behind, the quoting is also no longer necessary to create a
standard-conforming mail.
Remove the quoting, when RFC 2047 encoding takes place. This actually
requires to refactor add_rfc2047() a bit, so that the different cases
can be distinguished.
With this patch, my own name gets correctly decoded as Jan H. Schönherr
(without quotes) and not as "Jan H. Schönherr" (with quotes).
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
RFC 2047 requires more characters to be encoded than it is currently done.
Especially, RFC 2047 distinguishes between allowed remaining characters
in encoded words in addresses (From, To, etc.) and other headers, such
as Subject.
Make add_rfc2047() and is_rfc2047_special() location dependent and include
all non-allowed characters to hopefully be RFC 2047 conformant.
This especially fixes a problem, where RFC 822 specials (e. g. ".") were
left unencoded in addresses, which was solved with a non-standard-conforming
workaround in the past (which is going to be removed in a follow-up patch).
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch: do not wrap rfc2047 encoded headers too late
Encoded characters add more than one character at once to an encoded
header. Include all characters that are about to be added in the length
calculation for wrapping.
Additionally, RFC 2047 imposes a maximum line length of 76 characters
if that line contains an rfc2047 encoded word.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch: do not wrap non-rfc2047 headers too early
Do not wrap the second and later lines of non-rfc2047-encoded headers
substantially before the 78 character limit.
Instead of passing the remaining length of the first line as wrapping
width, use the correct maximum length and tell strbuf_add_wrapped_bytes()
how many characters of the first line are already used.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The wrapping logic in strbuf_add_wrapped_text() does currently not allow
lines that entirely fill the allowed width, instead it wraps the line one
character too early.
For example, the text "This is the sixth commit." formatted via
"%w(11,1,2)" (wrap at 11 characters, 1 char indent of first line, 2 char
indent of following lines) results in four lines: " This is", " the",
" sixth", " commit." This is wrong, because " the sixth" is exactly
11 characters long, and thus allowed.
Fix this by allowing the (width+1) character of a line to be a valid
wrapping point if it is a whitespace character.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
strbuf: always return a non-NULL value from strbuf_detach
The current behavior is to return NULL when strbuf did not
actually allocate a string. This can be quite surprising to
callers, though, who may feed the strbuf from arbitrary data
and expect to always get a valid value.
In most cases, it does not make a difference because calling
any strbuf function will cause an allocation (even if the
function ends up not inserting any data). But if the code is
structured like:
then you may or may not return NULL, depending on the
condition. This can cause us to segfault in http-push
(when fed an empty URL) and in http-backend (when an empty
parameter like "foo=bar&&" is in the $QUERY_STRING).
This patch forces strbuf_detach to allocate an empty
NUL-terminated string when it is called on a strbuf that has
not been allocated.
I investigated all call-sites of strbuf_detach. The majority
are either not affected by the change (because they call a
strbuf_* function unconditionally), or can handle the empty
string just as easily as NULL.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge tag 'gitgui-0.17.0' of git://repo.or.cz/git-gui
git-gui 0.17.0
* tag 'gitgui-0.17.0' of git://repo.or.cz/git-gui:
git-gui 0.17
git-gui: Don't prepend the prefix if value looks like a full path
git-gui: Detect full path when parsing arguments
git-gui: remove .git/CHERRY_PICK_HEAD after committing
git-gui: Fix a loose/lose mistake
git-gui: Fix semi-working shortcuts for unstage and revert
git-gui: de.po: translate "remote" as "extern"
git-gui: de.po: translate "bare" as "bloß"
git-gui: de.po: consistently add untranslated hook names within braces
git-gui: preserve commit messages in utf-8
git-gui: open console when using --trace on windows
git-gui: fix a typo in po/ files
git-gui: Use PWD if it exists on Mac OS X
git-gui: fix git-gui crash due to uninitialized variable
git-gui: Don't prepend the prefix if value looks like a full path
When argument parsing fails to detect a file name, "git-gui" will try to
use the previously detected "head" as the file name. We should avoid
prepending the prefix if "head" looks like a full path.
Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com> Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
When running "git-gui blame" from a subfolder (which means prefix is
non-empty), if we pass a full path as argument, the argument parsing
will fail to recognize the argument as a file name, because prefix is
prepended to the argument.
This patch handles that scenario by adding an additional branch that
checks the file name without using the prefix.
Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com> Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>