Normal git processes do not allow one to build a tree with an empty
subtree entry without trying hard at it. This is in keeping with the
general UI philosophy: git tracks content, not empty directories.
v1.7.3-rc0~75^2 (2010-06-30) changed that by making it easy to include
an empty subtree in fast-import's active commit:
M 040000 4b825dc642 subdir
One can trigger this by reading an empty tree (for example, the tree
corresponding to an empty root commit) and trying to move it to a
subtree. It is better and more closely analogous to 'git read-tree
--prefix' to treat such commands as requests to remove the subtree.
Noticed-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When you give a non-existent branch to git-rebase, it spits
out the usage. This can be confusing, since you may
understand the usage just fine, but simply have made a
mistake in the branch name.
Before:
$ git rebase origin bogus
Usage: git rebase ...
After:
$ git rebase origin bogus
fatal: no such branch: bogus
Usage: git rebase ...
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the case of a ref/pathname conflict, checkout will
already do the right thing and checkout the ref. However,
for a non-existant ref, this has two advantages:
1. If a file with that pathname exists, rebase will
refresh the file from the index and then rebase the
current branch instead of producing an error.
2. If no such file exists, the error message using an
explicit "--" is better:
# before
$ git rebase -i origin bogus
error: pathspec 'bogus' did not match any file(s) known to git.
Could not checkout bogus
# after
$ git rebase -i origin bogus
fatal: invalid reference: bogus
Could not checkout bogus
The problems seem to be trigger-able only through "git
rebase -i", as regular git-rebase checks the validity of the
branch parameter as a ref very early on. However, it doesn't
hurt to be defensive.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jn/setup-fixes:
t1510: fix typo in the comment of a test
Documentation updates for 'GIT_WORK_TREE without GIT_DIR' historical usecase
Subject: setup: officially support --work-tree without --git-dir
tests: compress the setup tests
tests: cosmetic improvements to the repo-setup test
t/README: hint about using $(pwd) rather than $PWD in tests
Fix expected values of setup tests on Windows
The original intention of --work-tree was to allow people to work in a
subdirectory of their working tree that does not have an embedded .git
directory. Because their working tree, which their $cwd was in, did not
have an embedded .git, they needed to use $GIT_DIR to specify where it is,
and because this meant there was no way to discover where the root level
of the working tree was, so we needed to add $GIT_WORK_TREE to tell git
where it was.
However, this facility has long been (mis)used by people's scripts to
start git from a working tree _with_ an embedded .git directory, let git
find .git directory, and then pretend as if an unrelated directory were
the associated working tree of the .git directory found by the discovery
process. It happens to work in simple cases, and is not worth causing
"regression" to these scripts.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current treatment of "git reset --keep" emphasizes how it
differs from --hard (treatment of local changes) and how it breaks
down into plumbing (git read-tree -m -u HEAD <commit> followed by git
update-ref HEAD <commit>). This can discourage people from using
it, since it might seem to be a complex or niche option.
Better to emphasize what the --keep flag is intended for --- moving
the index and worktree from one commit to another, like "git checkout"
would --- so the reader can make a more informed decision about the
appropriate situations in which to use it.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The errno check added in commit 3ba7a06 "A loose object is not corrupt
if it cannot be read due to EMFILE" only checked for whether errno is
not ENOENT and thus incorrectly treated "no error" as an error
condition.
Because of that, it never reached the code path that would report that
the object is corrupted and instead caused funny errors like:
fatal: failed to read object 333c4768ce595793fdab1ef3a036413e2a883853: Success
So we have to extend the check to cover the case in which the object
file was successfully read, but its contents are corrupted.
Reported-by: Will Palmer <wmpalmer@gmail.com>
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
New test helpers:
- setup_repo, to initialize a repository or gitfile pointing to a
repository, with core.bare and core.worktree set as specified;
- try_case, to run setup from a given directory and validate the
result, with GIT_DIR and GIT_WORK_TREE set as specified;
- try_repo, to initialize a repository and call "try_case" from the
toplevel and a subdirectory;
- run_wt_tests, to run a battery of tests that check for sane
behavior when GIT_WORK_TREE is set to various positions relative to
the .git dir and cwd.
Use these helpers to make the test shorter, less repetitive, and (one
hopes) easier to understand and modify.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Give an overview in "sh t1510-repo-setup.sh --help" output.
Waste some vertical and horizontal space for clearer code.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This definition was added by commit 77cb17e9, but it's left unused since
commit 511707d. Remove the left-over definition.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* rj/maint-test-fixes:
t9501-*.sh: Fix a test failure on Cygwin
lib-git-svn.sh: Add check for mis-configured web server variables
lib-git-svn.sh: Avoid setting web server variables unnecessarily
t9142: Move call to start_httpd into the setup test
t3600-rm.sh: Don't pass a non-existent prereq to test #15
* ak/describe-exact:
describe: Delay looking up commits until searching for an inexact match
describe: Store commit_names in a hash table by commit SHA1
describe: Do not use a flex array in struct commit_name
describe: Use for_each_rawref
Omit needless words ("Additionally ... <path> may also" is redundant).
While at it, place the explanation of this special case after the
general rules for paths to provide the reader with some context.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In particular, on systems that define uint32_t as an unsigned long,
gcc complains as follows:
CC vcs-svn/svndump.o
vcs-svn/svndump.c: In function `svndump_read':
vcs-svn/svndump.c:215: warning: int format, uint32_t arg (arg 2)
In order to suppress the warning we use the C99 format specifier
macro PRIu32 from <inttypes.h>.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of stripping space characters past the beginning of the
line and overflowing a buffer, stop at the beginning of the line
(mimicking the corresponding fix in remote-fd).
The argument to isspace does not need to be cast explicitly because
git isspace takes care of that already.
Noticed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rearrange code to be easier to browse:
- first data
- then functions
- then test assertions
Mark up inline test vectors as
cat >vector <<-\EOF
data
data
EOF
for visual scannability. Use words like "set up" for tests that set
up for other tests, to make it obvious which tests are safe to skip.
Use repeated function calls instead of a loop for the
language-specific tests, so the invocations can be easily tweaked
individually (for example if one starts to fail).
This means if you add a new subdirectory to t4034/, it will not be
automatically used. I think that's worth it for the added
explicitness.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git's diff-words support has a detail that can be a little dangerous:
any text not matched by a given language's tokenization pattern is
treated as whitespace and changes in such text would go unnoticed.
Therefore each of the built-in regexes allows a special token type
consisting of a single non-whitespace character [^[:space:]].
To make sure UTF-8 sequences remain human readable, the builtin
regexes also have a special token type for runs of bytes with the high
bit set. In English, non-ASCII characters are usually isolated so
this is analogous to the [^[:space:]] pattern, except it matches a
single _multibyte_ character despite use of the C locale.
Unfortunately it is easy to make typos or forget entirely to include
these catch-all token types when adding support for new languages (see
v1.7.3.5~16, userdiff: fix typo in ruby and python word regexes,
2010-12-18). Avoid this by including them automatically within the
PATTERNS and IPATTERN macros.
While at it, change the UTF-8 sequence token type to match exactly one
non-ASCII multi-byte character, rather than an arbitrary run of them.
Suggested-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The builtin word regexes should be tested with some simple examples
against simple issues. Do this in bulk.
Mainly due to a lack of language knowledge and inspiration, most of
the test cases (cpp, csharp, java, objc, pascal, php, python, ruby)
are directly based off a C operator precedence table to verify that
all operators are split correctly. This means that they are probably
incomplete or inaccurate except for 'cpp' itself.
Still, they are good enough to already have uncovered a typo in the
python and ruby patterns.
'fortran' is based on my anecdotal knowledge of the DO10I parsing
rules, and thus probably useless. The rest (bibtex, html, tex) are an
ad-hoc test of what I consider important splits in those languages.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a frontend uses a marks file to ensure its state persists between
runs, it may represent "clean slate" when bootstrapping with "no marks
yet". In such a case, feeding the last state with --import-marks and
saving the state after the current run with --export-marks would be a
natural thing to do.
The --import-marks option however errors out when the specified marks file
doesn't exist; this makes bootstrapping a bit difficult. The location of
the marks file becomes backend-dependent when --relative-marks is in
effect, and the frontend cannot check for the existence of the file in
such a case.
The --import-marks-if-exists option does the same thing as --import-marks
but does not flag an error if the named file does not exist yet to help
these frontends.
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As long as sizeof(struct ll_merge_options) is small, there is not
much reason not to keep a copy of the default merge options in the BSS
section. In return, we get clearer code and one less stack frame in
the opts == NULL case.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* rj/test-fixes:
t4135-*.sh: Skip the "backslash" tests on cygwin
t3032-*.sh: Do not strip CR from line-endings while grepping on MinGW
t3032-*.sh: Pass the -b (--binary) option to sed on cygwin
t6038-*.sh: Pass the -b (--binary) option to sed on cygwin
Conflicts:
t/t3032-merge-recursive-options.sh
t0000 contains two snippets of actual test output. This causes
problems when passing -v to the test[*]: the test infrastructure
echoes the tests before running them, and the TAP parser then sees
this test output and concludes that two tests failed and that the TAP
output was badly formatted.
Guard against this by quoting the output in the source.
[*] either by running 'make smoke' with GIT_TEST_OPTS=-v, or with
prove ./t0000-basic.sh :: -v
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When check_leading_path notices a file in the way of a new entry to be
checked out, verify_absent uses (1) the mode to determine whether it
is a directory (2) the rest of the stat information to check if this
is actually an old entry, disguised by a change in filename (e.g.,
README -> Readme) that is significant to git but insignificant to the
underlying filesystem. If lstat fails, these checks are performed
with an uninitialied stat structure, producing essentially random
results.
Better to just error out when lstat fails.
The easiest way to reproduce this is to remove a file after the
check_leading_path call and before the lstat in verify_absent. An
lstat failure other than ENOENT in check_leading_path would also
trigger the same code path.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When check_leading_path notices no file in the way of the new entry to
be checked out, verify_absent checks whether there is a directory
there or nothing at all. If that lstat call fails (for example due to
ENOMEM), it assumes ENOENT, meaning a directory with untracked files
would be clobbered in that case.
Check errno after calling lstat, and for conditions other than ENOENT,
just error out.
This is a theoretical race condition. lstat has to succeed moments
before it fails for there to be trouble.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
