fast-import: treat filemodify with empty tree as delete
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:
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>
rebase: give a better error message for bogus branch
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
Subject: setup: officially support --work-tree without --git-dir
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>
Documentation: do not treat reset --keep as a special case
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:
- 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>
* 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
Documentation/fast-import: put explanation of M 040000 <dataref> "" in context
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>
- 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
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>
unpack-trees: handle lstat failure for existing file
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>
unpack-trees: handle lstat failure for existing directory
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>
commit: suggest --amend --reset-author to fix commiter identity
Since the message advises to fix the configuration first, the
advantage of using this command is that it is cut-and-paste ready,
while using --author='...' requires the user to type his name and
email again.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t9157-*.sh: Make the svn version check more precise
These tests require an svn version 1.5 or newer to run correctly.
In particular, all 1.4.x versions and earlier are too old, so fix
up the case label regex to cover this range exactly.
[Fix provided by Anders Kaseorg <andersk@MIT.EDU>]
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
On Windows, bash stores absolute path names in shell variables in POSIX
format that begins with a slash, rather than in drive-letter format; such
a value is converted to the latter format when it is passed to a non-MSYS
program such as git.
When an expected test value is constructed, it must contain the value that
will be produced by git, which will be in the drive-letter format. But
TRASH_DIRECTORY is in POSIX format. Fix this by using $(pwd), which
produces drive-letter format since 4114156a (Tests on Windows: $(pwd) must
return Windows-style paths).
The change in t1510 is a straight seach-and-replace, except for the first
hunk of the diff.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This was added long ago as part of the userdiff refactoring
for textconv, as internally it made the code simpler and
cleaner. However, there was never a concrete use case for
actually using the config variable.
Now that Matthieu Moy has provided such a use case, it's
easy to explain it using his example.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If svn is built against one version of SQLite and run against another,
libsvn_subr needlessly errors out in operations that need to make a
commit.
That is clearly not a bug in git but let us consider the ramifications for
the test suite. git-svn uses libsvn directly and is probably broken by
that bug; it is right for git-svn tests to fail. The vcs-svn lib, on the
other hand, does not use libsvn and the test t9010 only uses svn to check
its work. This points to two possible improvements:
- do not disable most vcs-svn tests if svn is missing.
- skip validation rather than failing it when svn fails.
Bring about both by putting the svn invocations into a single test that
builds a repo to compare the test-svn-fe result against. The test will
always pass but only will set the new SVNREPO test prereq if svn succeeds;
and validation using that repo gets an SVNREPO prerequisite so it only
runs with working svn installations.
Works-around: http://bugs.debian.org/608925 Noticed-by: A Large Angry SCM <gitzilla@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
submodule: fix relative url parsing for scp-style origin
The function resolve_relative_url was not prepared to deal with an
scp-style origin 'user@host:path' in the case where 'path' is only a
single component. Fix this by extending the logic that strips one
path component from the $remoteurl.
Also add tests for both styles of URLs.
Noticed-by: Jeffrey Phillips Freeman <jeffrey.freeman@syncleus.com> Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/githooks: post-rewrite-copy-notes never existed
The documentation for the post-rewrite hook contains a paragraph from
its early development, where the automatic notes copying facilities
were not part of the series and thus this had to be a hook. Later
versions of the series implemented notes copying as a core feature.
Thus mentioning post-rewrite-copy-notes was never correct. As the
other hooks do not have a "there is no default hook, but..." sentence
unless they ship a sample hook in either templates or contrib, we
simply remove the whole paragraph.
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --worktree-attributes option was correctly documented in ba053ea
(archive: do not read .gitattributes in working directory,
2009-04-18). However, later in 9b4c8b0 (archive documentation:
attributes are taken from the tree by default, 2010-02-10) the
misspelling "--work-tree-attributes" was used to refer to it. Fix
this.
Noticed-by: Jeffrey Phillips Freeman <jeffrey.freeman@syncleus.com> Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The BSLASHPSPEC tests (11-13) fail on cygwin, since you can't
create files containing an backslash character in the name.
In order to skip these tests, we simply stop (incorrectly)
asserting the BSLASHPSPEC prerequisite in test-lib.sh.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3032-*.sh: Do not strip CR from line-endings while grepping on MinGW
By default grep reads in text mode and converts CRLF into LF line
endings, which causes tests 4, 6 and 8 to fail. In a similar manner
to commit a94114ad (Do not strip CR when grepping HTTP headers,
2010-09-12), we set (and export) the GREP_OPTIONS variable to -U so
that grep will use binary mode.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3032-*.sh: Pass the -b (--binary) option to sed on cygwin
The test using the conflict_hunks helper function (test 9) fails
on cygwin, since sed (by default) throws away the CR from CRLF
line endings. This behaviour is undesirable, since the validation
code expects the CRLF line-ending to be present. In order to fix
the problem we pass the -b (--binary) option to sed, using the
SED_OPTIONS variable. We use the SED_STRIPS_CR prerequisite in the
conditional initialisation of SED_OPTIONS.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t6038-*.sh: Pass the -b (--binary) option to sed on cygwin
The tests using the fuzz_conflict helper function (tests 5-6)
fail on cygwin in the same way they used to on MinGW, prior
to commit ca02ad3. The solution is also the same; passing the
-b (--binary) option to sed, using the SED_OPTIONS variable.
We introduce a new prerequisite SED_STRIPS_CR to use in the
conditional initialisation of SED_OPTIONS, rather than MINGW.
The new prerequisite is set in test-lib.sh for both MinGW and
Cygwin.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The executable bit on gitk-git/gitk was lost (accidentally it seems) by
commit 62ba5143ec2ab9d4083669b1b1679355e7639cd5. Put it back, so that
gitk can be run directly from a git.git checkout.
Note that the script is already executable in gitk.git, just not in
git.git.
Signed-off-by: Anders Kaseorg <andersk@mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-remote add' creates a remote.origin.fetch entry in the config, we
want to replace this entry rather than add another one (which will
cause 'git fetch' to error).
This adds 'git config --remove-section remote.origin' after the fetch
for encouraging users to only use "git svn" for future updates.
[ew: rewording of commit message for present tense]
Acked-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: StephenB <mail4stb@gmail.com>
On Windows, system() executes with cmd.exe instead of /bin/sh. This
means that aliases currently has to be batch-scripts instead of
bourne-scripts. On top of that, cmd.exe does not handle single quotes,
which is what the code-path currently uses to handle arguments with
spaces.
To solve both problems in one go, use run_command_v_opt() to execute
the alias. It already does the right thing prepend "sh -c " to the
alias.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
POSIX leaves as unspecified the handling of labels greater than 8
characters. Apparently, Sun decided to treat them as errors. Make sed on
Solaris happy by trimming the length of labels to 8 characters.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t0001,t1510,t3301: use sane_unset which always returns with status 0
On some shells (like /usr/xpg4/bin/sh on Solaris), unset will exit
non-zero when passed the name of a variable that has not been set. Use
sane_unset instead so that the return value of unset can be ignored while
the && linkage of the test script can be preserved.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
GNU printf, and many others, will print the string "(null)" if a NULL
pointer is passed as the argument to a "%s" format specifier. Some
implementations (like on Solaris) do not detect a NULL pointer and will
produce a segfault in this case.
So, fix this by ensuring that pointer variables do not contain the value
NULL. Assign the string "(null)" to the variables are NULL.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
gitweb: remove unnecessary test when closing file descriptor
It happens that closing file descriptor fails whereas the blob is
perfectly readable. According to perlman the reasons could be:
If the file handle came from a piped open, "close" will additionally
return false if one of the other system calls involved fails, or if the
program exits with non-zero status. (If the only problem was that the
program exited non-zero, $! will be set to 0.) Closing a pipe also waits
for the process executing on the pipe to complete, in case you want to
look at the output of the pipe afterwards, and implicitly puts the exit
status value of that command into $?.
Prematurely closing the read end of a pipe (i.e. before the process writ-
ing to it at the other end has closed it) will result in a SIGPIPE being
delivered to the writer. If the other end can't handle that, be sure to
read all the data before closing the pipe.
In this case we don't mind that close fails.
Signed-off-by: Sylvain Rabot <sylvain@abstraction.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
lib-git-svn.sh: Move web-server handling code into separate function
This library file is currently sourced by 57 test files, of which
only four may (optionally) start a web-server in order to access
the svn repo via an http url, rather than a file url.
In addition to isolating the current web-server handling code from
the majority of tests, in a new prepare_httpd function, we also
add some more error checking and reporting code to validate the
apache installation. Only those tests which attempt to start the
web-server, by calling start_httpd, will execute this code.
Note that it is important for start_httpd to return an error
indication, if prepare_httpd fails, so that the failure to use
the web-server, as requested by the user, should not go unnoticed.
(Unless the svnrepo variable is set to an http url at the end of
start_httpd, the remaining tests will use file urls, without
comment.)
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
cvsimport: handle the parsing of uppercase config options
The current code leads to
fatal: bad config value for 'cvsimport.r' in .git/config
for a standard use case with cvsimport.r set.
cvsimport sets internal variables by checking the config for each
possible command line option. The problem is that config items are case
insensitive, so config.r and config.R are the same. The ugly error is
due to that fact that cvsimport expects a bool for -R (and thus
config.R) but a remote name for -r (and thus config.r).
Fix this by making cvsimport expect long names for uppercase options.
config options for cvsimport have been undocumented so far, though
present in the code and advertised in several tutorials. So one may read
"enhance" for "fix". Similarly, the names for the options are
"documented" in the code, waitiing for their lowercase equivalents to be
transformed into long config options, as well.
Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
unpack_trees(): skip trees that are the same in all input
unpack_trees() merges two trees (the current HEAD and the destination
commit) when switching to another branch, checking and updating the index
entry where the destination differs from the current HEAD. It merges three
trees (the common ancestor, the current HEAD and the other commit) when
performing a three-way merge, checking and updating the index entry when
the merge result differs from the current HEAD. It does so by walking the
input trees in parallel all the way down to the leaves.
One common special case is a directory is identical across the trees
involved in the merge. In such a case, we do not have to descend into the
directory at all---we know that the end result is to keep the entries in
the current index.
This optimization cannot be applied in a few special cases in
unpack_trees(), though. We need to descend into the directory and update
the index entries from the target tree in the following cases:
- When resetting (e.g. "git reset --hard"); and
- When checking out a tree for the first time into an empty working tree
(e.g. "git read-tree -m -u HEAD HEAD" with missing .git/index).
Ever since v1.7.4-rc0~125^2~8 (daemon: use run-command api for async
serving, 2010-11-04), git daemon spawns child processes instead of
forking to serve requests. The child processes learn that they are
being run for this purpose from the presence of the --serve command
line flag.
When running with <ok_path> arguments, the --serve flag is treated
as one of the path arguments and the special child behavior does
not kick in. So the child becomes an ordinary git daemon process,
notices that all the addresses it needs are in use, and exits with
the message "fatal: unable to allocate any listen sockets on port
9418".
Fix it by putting --serve at the beginning of the command line,
where the flag cannot be mistaken for a path argument.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
While at it, use $cgi->img to simplify this code. (CGI.pm learned
most HTML4 tags by version 2.79, so this should be portable to perl
5.8, though I haven't tested.)
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
With v1.5.0-rc0~169 (gitweb: Fix Atom feed <logo>: it is $logo,
not $logo_url, 2006-12-04), the logo URI to be written to Atom
feeds was corrected but the case of no logo forgotten.
Acked-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>