Code clean-up (and a bugfix which has been merged for 2.0).
* jk/external-diff-use-argv-array:
run_external_diff: refactor cmdline setup logic
run_external_diff: hoist common bits out of conditional
run_external_diff: drop fflush(NULL)
run_external_diff: clean up error handling
run_external_diff: use an argv_array for the environment
Update "update-ref --stdin [-z]" and then introduce a transactional
support for (multi-)reference updates.
* mh/ref-transaction: (27 commits)
ref_transaction_commit(): work with transaction->updates in place
struct ref_update: add a type field
struct ref_update: add a lock field
ref_transaction_commit(): simplify code using temporary variables
struct ref_update: store refname as a FLEX_ARRAY
struct ref_update: rename field "ref_name" to "refname"
refs: remove API function update_refs()
update-ref --stdin: reimplement using reference transactions
refs: add a concept of a reference transaction
update-ref --stdin: harmonize error messages
update-ref --stdin: improve the error message for unexpected EOF
t1400: test one mistake at a time
update-ref --stdin -z: deprecate interpreting the empty string as zeros
update-ref.c: extract a new function, parse_next_sha1()
t1400: test that stdin -z update treats empty <newvalue> as zeros
update-ref --stdin: simplify error messages for missing oldvalues
update-ref --stdin: make error messages more consistent
update-ref --stdin: improve error messages for invalid values
update-ref.c: extract a new function, parse_refname()
parse_cmd_verify(): copy old_sha1 instead of evaluating <oldvalue> twice
...
"--ignore-space-change" option of "git apply" ignored the
spaces at the beginning of line too aggressively, which is
inconsistent with the option of the same name "diff" and "git diff"
have.
* jc/apply-ignore-whitespace:
apply --ignore-space-change: lines with and without leading whitespaces do not match
These were originally removed by 0232852 (t5537: move
http tests out to t5539, 2014-02-13). However, they were
accidentally re-added in 1ddb4d7 (Merge branch
'nd/upload-pack-shallow', 2014-03-21).
This looks like an error in manual conflict resolution.
Here's what happened:
1. v1.9.0 shipped with the http tests in t5537.
2. We realized that this caused problems, and built
0232852 on top to move the tests to their own file.
This fix made it into v1.9.1.
3. We later had another fix in nd/upload-pack-shallow that
also touched t5537. It was built directly on v1.9.0.
When we merged nd/upload-pack-shallow to master, we got a
conflict; it was built on a version with the http tests, but
we had since removed them. The correct resolution was to
drop the http tests and keep the new ones, but instead we
kept everything.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of showing a warning and working as before, fail and show
the message and force immediate upgrade from their upstream
repositories when these tools are run, per request from their
primary author.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This reverts commit d508e4a8e2,
reversing changes made to e42552135a.
The author of the original topic says he broke the upcoming 2.0
release with something that relates to "synchronization crash
regression" while refusing to give further specifics, so this would
unfortunately be the safest option for the upcoming release.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Not all shells subject the prompt string to parameter expansion. Test
whether the shell will expand the value of PS1, and use the result to
control whether raw ref names are included directly in PS1.
This fixes a regression introduced in commit 8976500 ("git-prompt.sh:
don't put unsanitized branch names in $PS1"): zsh does not expand PS1
by default, but that commit assumed it did. The bug resulted in
prompts containing the literal string '${__git_ps1_branch_name}'
instead of the actual branch name.
Reported-by: Caleb Thompson <caleb@calebthompson.io>
Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Older versions of Git before v1.7.10 did not DWIM
$ git pull $URL for-linus
to the tag "tags/for-linus" and the users were required to say
$ git pull $URL tags/for-linus
instead. Because newer versions of Git works either way,
request-pull used to show tags/for-linus when asked
$ git request-pull origin/master $URL for-linus
The recent updates broke this and in the output we see "for-linus"
without the "tags/" prefix.
As v1.7.10 is more than 2 years old, this should matter very little
in practice, but resurrecting it is very simple.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make sure the marks are not written out when the transport helper
did not finish happily, to avoid leaving a marks file that is out of
sync with the reality.
* fc/transport-helper-sync-error-fix:
t5801 (remote-helpers): cleanup environment sets
transport-helper: fix sync issue on crashes
transport-helper: trivial cleanup
transport-helper: propagate recvline() error pushing
remote-helpers: make recvline return an error
transport-helper: remove barely used xchgline()
Versions of Perl's Getopt::Long module before 2.37 do not contain
this fix that first appeared in Getopt::Long version 2.37:
* Bugfix: With gnu_compat, --foo= will no longer trigger "Option
requires an argument" but return the empty string.
Instead of using --prefix="" use --prefix "" when testing an
explictly empty prefix string in order to work with older versions
of Perl's Getopt::Long module.
Also add a paragraph on this workaround to the documentation of
git-svn itself.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Acked-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Both bash and zsh subject the value of PS1 to parameter expansion,
command substitution, and arithmetic expansion. Rather than include
the raw, unescaped branch name in PS1 when running in two- or
three-argument mode, construct PS1 to reference a variable that holds
the branch name. Because the shells do not recursively expand, this
avoids arbitrary code execution by specially-crafted branch names such
as '$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)'.
Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 512477b (tests: use "env" to run commands with temporary env-var
settings) missed some variables in the remote-helpers test. Also
standardize these.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the external diff reports an error, we try to clean up
and die. However, we can make this process a bit simpler:
1. We do not need to bother freeing memory, since we are
about to exit. Nor do we need to clean up our
tempfiles, since the atexit() handler will do it for
us. So we can die as soon as we see the error.
3. We can just call die() rather than fprintf/exit. This
does technically change our exit code, but the exit
code of "1" is not meaningful here. In fact, it is
probably wrong, since "1" from diff usually means
"completed successfully, but there were differences".
And while we're there, we can mark the error message for
translation, and drop the full stop at the end to make it
more like our other messages.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-svn by default puts its Subversion-tracking refs directly in
refs/remotes/*. This runs counter to Git's convention of using
refs/remotes/$remote/* for storing remote-tracking branches.
Furthermore, combining git-svn with regular git remotes run the risk of
clobbering refs under refs/remotes (e.g. if you have a git remote
called "tags" with a "v1" branch, it will overlap with the git-svn's
tracking branch for the "v1" tag from Subversion.
Even though the git-svn refs stored in refs/remotes/* are not "proper"
remote-tracking branches (since they are not covered by a proper git
remote's refspec), they clearly represent a similar concept, and would
benefit from following the same convention.
For example, if git-svn tracks Subversion branch "foo" at
refs/remotes/foo, and you create a local branch refs/heads/foo to add
some commits to be pushed back to Subversion (using "git svn dcommit),
then it is clearly unhelpful of Git to throw
warning: refname 'foo' is ambiguous.
every time you checkout, rebase, or otherwise interact with the branch.
The existing workaround for this is to supply the --prefix=quux/ to
git svn init/clone, so that git-svn's tracking branches end up in
refs/remotes/quux/* instead of refs/remotes/*. However, encouraging
users to specify --prefix to work around a design flaw in git-svn is
suboptimal, and not a long term solution to the problem. Instead,
git-svn should default to use a non-empty prefix that saves
unsuspecting users from the inconveniences described above.
This patch will only affect newly created git-svn setups, as the
--prefix option only applies to git svn init (and git svn clone).
Existing git-svn setups will continue with their existing (lack of)
prefix. Also, if anyone somehow prefers git-svn's old layout, they
can recreate that by explicitly passing an empty prefix (--prefix "")
on the git svn init/clone command line.
The patch changes the default value for --prefix from "" to "origin/",
updates the git-svn manual page, and fixes the fallout in the git-svn
testcases.
(Note that this patch might be easier to review using the --word-diff
and --word-diff-regex=. diff options.)
[ew: squashed description of <= 1.9 behavior into manpage]
Suggested-by: Thomas Ferris Nicolaisen <tfnico@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
When a remote helper crashes while pushing we should revert back to the
state before the push, however, it's possible that `git fast-export`
already finished its job, and therefore has exported the marks already.
This creates a synchronization problem because from that moment on
`git fast-{import,export}` will have marks that the remote helper is not
aware of and all further commands fail (if those marks are referenced).
The fix is to tell `git fast-export` to export to a temporary file, and
only after the remote helper has finishes successfully, move to the
final destination.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since fd0a8c2e (first appearing in v1.7.0), the
t/t5560-http-backend-noserver.sh test has used a backslash escape
inside a ${} expansion in order to specify a literal '?' character.
Unfortunately the FreeBSD /bin/sh does not interpret this correctly.
In a POSIX compliant shell, the following:
x='one?two?three'
echo "${x#*\?}"
Would be expected to produce this:
two?three
When using the FreeBSD /bin/sh instead you get this:
one?two?three
In fact the FreeBSD /bin/sh treats the backslash as a literal
character to match so that this:
y='one\two\three'
echo "${y#*\?}"
Produces this unexpected value:
wo\three
In this case the backslash is not only treated literally, it also
fails to defeat the special meaning of the '?' character.
Instead, we can use the [...] construct to defeat the special meaning
of the '?' character and match it exactly in a way that works for the
FreeBSD /bin/sh as well as other POSIX /bin/sh implementations.
Changing the example like so:
x='one?two?three'
echo "${x#*[?]}"
Produces the expected output using the FreeBSD /bin/sh.
Therefore, change the use of \? to [?] in order to be compatible with
the FreeBSD /bin/sh which allows t/t5560-http-backend-noserver.sh to
pass on FreeBSD again.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 11502468 and 04c1ee57 (both first appearing in v1.8.5), the
t7001-mv test has used "cp -a" to perform a copy in several of the
tests.
However, the "-a" option is not required for a POSIX cp utility and
some platforms' cp utilities do not support it.
The POSIX equivalent of -a is -R -P -p.
Change "cp -a" to "cp -R -P -p" so that the t7001-mv test works
on systems with a cp utility that only implements the POSIX
required set of options and not the "-a" option.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jl/nor-or-nand-and:
code and test: fix misuses of "nor"
comments: fix misuses of "nor"
contrib: fix misuses of "nor"
Documentation: fix misuses of "nor"
* cn/fetch-prune-overlapping-destination:
fetch: handle overlaping refspecs on --prune
fetch: add a failing test for prunning with overlapping refspecs
* bp/commit-p-editor:
run-command: mark run_hook_with_custom_index as deprecated
merge hook tests: fix and update tests
merge: fix GIT_EDITOR override for commit hook
commit: fix patch hunk editing with "commit -p -m"
test patch hunk editing with "commit -p -m"
merge hook tests: use 'test_must_fail' instead of '!'
merge hook tests: fix missing '&&' in test
Eradicate mistaken use of "nor" (that is, essentially "nor" used
not in "neither A nor B" ;-)) from in-code comments, command output
strings, and documentations.
* jl/nor-or-nand-and:
code and test: fix misuses of "nor"
comments: fix misuses of "nor"
contrib: fix misuses of "nor"
Documentation: fix misuses of "nor"
OPT_SET_PTR() implementation was broken on IL32P64 platforms;
it turns out that the macro is not used by any real user.
* mr/opt-set-ptr:
parse-options: remove unused OPT_SET_PTR
parse-options: add cast to correct pointer type to OPT_SET_PTR
MSVC: fix t0040-parse-options crash
Make sure that the help text given to describe the "<param>" part
of the "git cmd --option=<param>" does not contain SP or _,
e.g. "--gpg-sign=<key-id>" option for "git commit" is not spelled
as "--gpg-sign=<key id>".
* jc/rev-parse-argh-dashed-multi-words:
parse-options: make sure argh string does not have SP or _
update-index: teach --cacheinfo a new syntax "mode,sha1,path"
parse-options: multi-word argh should use dash to separate words
Make (most of) the error messages for invalid input have the same
format [1]:
$COMMAND [SP $REFNAME]: $MESSAGE
Update the tests accordingly.
[1] A few error messages are left with their old form, because
$COMMAND and $REFNAME aren't passed all the way down the call
stack. Maybe those sites should be changed some day, too.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Distinguish this error from the error that an argument is missing for
another reason. Update the tests accordingly.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This case wants to test passing a bad refname to the "update" command.
But it also passes too few arguments to "update", which muddles the
situation: which error should be diagnosed? So split this test into
two:
* One that passes too few arguments to update
* One that passes all three arguments to "update", but with a bad
refname.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the original version of this command, for the single case of the
"update" command's <newvalue>, the empty string was interpreted as
being equivalent to 40 "0"s. This shorthand is unnecessary (binary
input will usually be generated programmatically anyway), and it
complicates the parser and the documentation.
So gently deprecate this usage: remove its description from the
documentation and emit a warning if it is found. But for reasons of
backwards compatibility, continue to accept it.
Helped-by: Brad King <brad.king@kitware.com>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Replace three functions, update_store_new_sha1(),
update_store_old_sha1(), and parse_next_arg(), with a single function,
parse_next_sha1(). The new function takes care of a whole argument,
including checking whether it is there, converting it to an SHA-1, and
emitting errors on EOF or for invalid values. The return value
indicates whether the argument was present or absent, which requires
a bit of intelligence because absent values are represented
differently depending on whether "-z" was used.
The new interface means that the calling functions, parse_cmd_*(),
don't have to interpret the result differently based on the
line_termination mode that is in effect. It also means that
parse_cmd_create() can distinguish unambiguously between an empty new
value and a zeros new value, which fixes a failure in t1400.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is the (slightly inconsistent) status quo; make sure it doesn't
change by accident.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of, for example,
fatal: update refs/heads/master missing [<oldvalue>] NUL
emit
fatal: update refs/heads/master missing <oldvalue>
Update the tests accordingly.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old error messages emitted for invalid input sometimes said
"<oldvalue>"/"<newvalue>" and sometimes said "old value"/"new value".
Convert them all to the former. Update the tests accordingly.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If an invalid value is passed to "update-ref --stdin" as <oldvalue> or
<newvalue>, include the command and the name of the reference at the
beginning of the error message. Update the tests accordingly.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously there were no good tests of C-quoted arguments.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old parse_arg(), when fed an argument
"refs/heads/a"master
parsed 'refs/heads/a' off of the front of the argument and considered
itself successful. It was only when parse_next_arg() tried to parse
the *next* argument that a problem was noticed. But in fact, the
definition of the input format requires arguments to be terminated by
SP or NUL, so *this* argument is already erroneous and parse_arg()
should diagnose the problem.
So teach parse_arg() to verify that C-quoted arguments are terminated
correctly. If not, emit a more specific error message.
There is no corresponding error case of a non-C-quoted argument that
is not terminated correctly, because the end of a non-quoted argument
is *by definition* a space or NUL, so there is no way to insert other
junk between the "end" of the argument and the argument terminator.
Adjust the tests to expect the new error message. Add a docstring to
the function, incorporating the comments that were formerly within the
function plus some added information.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The old version was passing (among other things)
update SP refs/heads/c NUL NUL 0{40} NUL
to "git update-ref -z --stdin" to test whether the old-value check for
c is working. But the <newvalue> is empty, which is a bit off the
beaten track.
So, to be sure that we are testing what we want to test, provide an
actual <newvalue> on the "update" line.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test
stdin -z create ref fails with zero new value
actually passes an empty new value, not a zero new value. So rename
the test s/zero/empty/, and change the expected error from
fatal: create $c given zero new value
to
fatal: create $c missing <newvalue>
Of course, this makes the test fail now, because although "git
update-ref" tries to distinguish between these two errors, it does not
succeed in this situation. Fixing it is more than a one-liner, so
mark the test test_expect_failure for now. The failure will be fixed
later in this patch series.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When pack-objects is computing the reachability bitmap to
serve a fetch request, it can erroneously die() if some of
the UNINTERESTING objects are not present. Upload-pack
throws away HAVE lines from the client for objects we do not
have, but we may have a tip object without all of its
ancestors (e.g., if the tip is no longer reachable and was
new enough to survive a `git prune`, but some of its
reachable objects did get pruned).
In the non-bitmap case, we do a revision walk with the HAVE
objects marked as UNINTERESTING. The revision walker
explicitly ignores errors in accessing UNINTERESTING commits
to handle this case (and we do not bother looking at
UNINTERESTING trees or blobs at all).
When we have bitmaps, however, the process is quite
different. The bitmap index for a pack-objects run is
calculated in two separate steps:
First, we perform an extensive walk from all the HAVEs to
find the full set of objects reachable from them. This walk
is usually optimized away because we are expected to hit an
object with a bitmap during the traversal, which allows us
to terminate early.
Secondly, we perform an extensive walk from all the WANTs,
which usually also terminates early because we hit a commit
with an existing bitmap.
Once we have the resulting bitmaps from the two walks, we
AND-NOT them together to obtain the resulting set of objects
we need to pack.
When we are walking the HAVE objects, the revision walker
does not know that we are walking it only to mark the
results as uninteresting. We strip out the UNINTERESTING flag,
because those objects _are_ interesting to us during the
first walk. We want to keep going to get a complete set of
reachable objects if we can.
We need some way to tell the revision walker that it's OK to
silently truncate the HAVE walk, just like it does for the
UNINTERESTING case. This patch introduces a new
`ignore_missing_links` flag to the `rev_info` struct, which
we set only for the HAVE walk.
It also adds tests to cover UNINTERESTING objects missing
from several positions: a missing blob, a missing tree, and
a missing parent commit. The missing blob already worked (as
we do not care about its contents at all), but the other two
cases caused us to die().
Note that there are a few cases we do not need to test:
1. We do not need to test a missing tree, with the blob
still present. Without the tree that refers to it, we
would not know that the blob is relevant to our walk.
2. We do not need to test a tip commit that is missing.
Upload-pack omits these for us (and in fact, we
complain even in the non-bitmap case if it fails to do
so).
Reported-by: Siddharth Agarwal <sid0@fb.com>
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>
Junio C Hamano