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git_connect() can return 0 if we use git protocol for example.
Users of this function don't know and don't care if a process
had been created or not, and to avoid them to check it before
calling finish_connect() this patch allows finish_connect() to
take a null pid. And in that case return 0.
[jc: updated function signature of git_connect() with a comment on
its return value. ]
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Use "add_to_string" instead of "sq_quote" and "snprintf", so
that there is no memory allocation and no memory leak.
Also check if the command is too long to fit into the buffer
and die if this is the case, instead of truncating it to the
buffer size.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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When build a pack for a push we query the remote copy for existant
heads. These are used to prune unnecessary objects from the pack.
As we receive the remote references in get_remote_heads() we validate
the reference names via check_ref() which includes a length check;
rejecting those >45 characters in size.
This is a miss converted change, it was originally designed to reject
messages which were less than 45 characters in length (a 40 character
sha1 and refs/) to prevent comparing unitialised memory. check_ref()
now gets the raw length so check for at least 5 characters.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Like xmalloc and xrealloc xstrdup dies with a useful message if
the native strdup() implementation returns NULL rather than a
valid pointer.
I just tried to use xstrdup in new code and found it to be missing.
However I expected it to be present as xmalloc and xrealloc are
already commonly used throughout the code.
[jc: removed the part that deals with last_XXX, which I am
finding more and more dubious these days.]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This abstracts away the size of the hash values when copying them
from memory location to memory location, much as the introduction
of hashcmp abstracted away hash value comparsion.
A few call sites were using char* rather than unsigned char* so
I added the cast rather than open hashcpy to be void*. This is a
reasonable tradeoff as most call sites already use unsigned char*
and the existing hashcmp is also declared to be unsigned char*.
[jc: Splitted the patch to "master" part, to be followed by a
patch for merge-recursive.c which is not in "master" yet.
Fixed the cast in the latter hunk to combine-diff.c which was
wrong in the original.
Also converted ones left-over in combine-diff.c, diff-lib.c and
upload-pack.c ]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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[jc: I needed to hand merge the changes to the updated codebase,
so the result needs to be checked.]
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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All but one callers have ignore the return value from this
function, but the only caller, builtin-tar-tree.c::remote_tar(),
assumed it returns non-zero on failure and zero on success. The
implementation however was returning either the waited pid
(which must be the same as its input) or -1 (an error).
Fix this thinko, while getting rid of an assignment of return
value from waitpid() into a variable of type int.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This makes git-peek-remote able to basically do everything that
git-ls-remote does (but obviously just for the native protocol, so no
http[s]: or rsync: support).
The default behaviour is the same, but you can now give a mixture of
"--refs", "--tags" and "--heads" flags, where "--refs" forces
git-peek-remote to only show real refs (ie none of the fakey tag lookups,
but also not the special pseudo-refs like HEAD and MERGE_HEAD).
The "--tags" and "--heads" flags respectively limit the output to just
regular tags and heads, of course.
You can still also ask to limit them by name too.
You can combine the flags, so
git peek-remote --refs --tags .
will show all local _true_ tags, without the generated tag lookups
(compare the output without the "--refs" flag).
And "--tags --heads" will show both tags and heads, but will avoid (for
example) any special refs outside of the standard locations.
I'm also planning on adding a "--ignore-local" flag that allows us to ask
it to ignore any refs that we already have in the local tree, but that's
an independent thing.
All this is obviously gearing up to making "git fetch" cheaper.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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errno was used after it could've been modified by a subsequent library call.
Spotted by Morten Welinder.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Currently the compilation fails in connect.c and merge-index.c
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It was reported that under one implementation of socks client
"git clone" fails with "error: waitpid failed (No child processes)",
because "git" is spawned after setting SIGCHLD to SIG_IGN.
Arguably it may be a broken setting, but we should protect
ourselves so that we can get reliable results from waitpid() for
the children we care about.
This patch resets SIGCHLD to SIG_DFL in three places:
- connect.c::git_connect() - initiators of git native
protocol transfer are covered with this.
- daemon.c::main() - obviously.
- merge-index.c::main() - obviously.
There are other programs that do fork() but do not waitpid():
http-push, imap-send. upload-pack does not either, but in the
case of that program, each of the forked halves runs exec()
another program, so this change would not have much effect
there.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Trivial fixup for fork() callsites which do not check for errors.
Signed-off-by: Paul T Darga <pdarga@umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Add client side sending of "\0host=%s\0" extended
arg for git native protocol, backwards compatibly.
Signed-off-by: Jon Loeliger <jdl@jdl.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Currently, fetched refs are output in the order the remote side
happened to send them. This changes the order to match the
order of refs that were given on the command line. To the
existing core callers (git-fetch and git-clone) this does not
make any difference, but for other Porcelain use, it would be
more intuitive.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The strncmp for ACK was ACK does not include the final space.
Presumably either we should either remove the trailing space,
or compare 4 chars (as this patch does).
'path' is sometimes strdup'ed, but never freed.
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Implement a (slow) unsetenv() for older systems.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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remove environment variables relating to the current repository
before execing the 'remote' half of a local push or pull operation
[jc: the original from Matt spelled out the environment variable
names, which I changed to the preprocessor symbols defined in
cache.h. Also it missed GRAFT_ENVIRONMENT.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This updates the protocol between git-send-pack/git-receive-pack
in a backward compatible way to allow failures at the receiving
end to be propagated back to the sender. Most notably, versions
of git-push before this could not notice if the update hook on
the receiving end refused to update the ref for its own policy
reasons.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Allow IPv6address/IPvFuture enclosed by [] in URLs, like:
git push '[3ffe:ffff:...:1]:GIT/git'
or
git push 'ssh://[3ffe:ffff:...:1]/GIT/git'
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Failure to dereference a pointer caused incorrect initialization of
the IPv4 address when calling connect() when compiled with -DNO_IPV6.
With this patch and yesterday's patch for git-daemon, it should now be
possible to use the native git protocol for both the client and server
on Cygwin.
Signed-off-by: Paul Serice <paul@serice.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Fix compilation error for gcc-2.95.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This builds on top of the git-proxy mechanism Paul Collins did,
and updates its configuration mechanism.
* GIT_PROXY_COMMAND environment variable is used as the
catch-all fallback, as in the original. This has not
changed.
* Renames proxy configuration variables to core.gitproxy; this
has become a multi-value variable per list discussion, most
notably from suggestion by Linus.
[core]
;# matches www.kernel.org as well
gitproxy = netcatter for kernel.org
gitproxy = netscatter for sample.xz
gitproxy = none for mydomain.xz
gitproxy = netcatter-default
The values are command names, followed by an optional " for "
and domainname; the first tail-match of the domainname
determines which proxy command is used. An entry without "
for " matches any domain and can be used as the default.
The command name "none" is special -- it tells the mechanism
not to use any proxy command and use the native git://
connection.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Here is an updated patch that first looks for GIT_PROXY_COMMAND
in the environment and then git.proxycommand in the repository's
configuration file. I have left the calling convention the same
argv[1] is the host and argv[2] is the port.
I've taken the hostname parsing verbatim from git_tcp_connect(),
so it should now support an explicit port number and whatever
that business with the square brackets is. (Should I move this
to a helper function?)
Regarding internal vs. external hosts, the proxy command can
simply run netcat locally to internal hosts, so perhaps that is
sufficient.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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With this patch, the client side passes identical paths for these two:
ssh://host.xz/~junio/repo
host.xz:~junio/repo
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The client side support for multi_ack.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This patch implements the client side of backward compatible upload-pack
protocol extension, <20051027141619.0e8029f2.vsu@altlinux.ru> by Sergey.
The updated server can append "server_capabilities" which is supposed
to be a string containing space separated features of the server, after
one of elements in the initial list of SHA1-refname line, hidden with
an embedded NUL.
After get_remote_heads(), check if the server supports the feature like
if (server_supports("multi_ack"))
do_something();
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Let's have it simmer a bit longer in the proposed updates branch
and shake the problems out.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This patch concludes the series, which makes
git-fetch-pack/git-upload-pack negotiate a potentially better set of
common revs. It should make a difference when fetching from a repository
with a few branches.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Forgot to include necessary header file to get the function declaration.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This allows the remote side (most notably, upload-pack) to show
additional information without affecting the downloader. Peek-remote
does not ignore them -- this is to make it useful for Pasky's
automatic tag following.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It seemed to be such a stupid syntax. It's both what "ssh://" means,
and it's what not specifying a protocol at _all_ means.
But hey, since we already have two ways of saying "use ssh with
pack-files", here's two more.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Omitting the first branch in ?: is a GNU extension. Cute,
but not supported by other compilers. Replaced mostly
by explicit tests. Calls to getenv() simply are repeated
on non-GNU compilers.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
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[jc: I ended up rewriting Martin's patch due to whitespace
breakage, but the credit goes to Martin for doing the initial
patch to identify what needs to be changed.]
Signed-off-by: Martin Sivak <mars@nomi.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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GCC's format __attribute__ is good for checking errors, especially
with -Wformat=2 parameter. This fixes most of the reported problems
against 2005-08-09 snapshot.
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This extends the source side semantics to match what Linus
suggested.
An example:
$ git-send-pack kernel.org:/pub/scm/git/git.git pu^^:master pu
would allow me to push the current pu into pu, and the
commit two commits before it into master, on my public
repository.
The revised rule for updating remote heads is as follows.
$ git-send-pack [--all] <remote> [<ref>...]
- When no <ref> is specified:
- with '--all', it is the same as specifying the full refs/*
path for all local refs;
- without '--all', it is the same as specifying the full
refs/* path for refs that exist on both ends;
- When one or more <ref>s are specified:
- a single token <ref> (i.e. no colon) must be a pattern that
tail-matches refs/* path for an existing local ref. It is
an error for the pattern to match no local ref, or more
than one local refs. The matching ref is pushed to the
remote end under the same name.
- <src>:<dst> can have different cases. <src> is first tried
as the tail-matching pattern for refs/* path.
- If more than one matches are found, it is an error.
- If one match is found, <dst> must either match no remote
ref and start with "refs/", or match exactly one remote
ref. That remote ref is updated with the sha1 value
obtained from the <src> sha1.
- If no match is found, it is given to get_extended_sha1();
it is an error if get_extended_sha1() does not find an
object name. If it succeeds, <dst> must either match
no remote ref and start with "refs/" or match exactly
one remote ref. That remote ref is updated with the sha1
value.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The revised code accidentally inherited the restriction that a
reference can be pushed only once, only because the original did
not allow renaming. This is no longer necessary so lift it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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When a new ref is being pushed, the name of it was not
terminated properly.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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fix one 'should it be static?' warning and
two 'mixing declarations and code' warnings.
Signed-off-by: Alecs King <alecsk@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This allows git-send-pack to push local refs to a destination
repository under different names.
Here is the name mapping rules for refs.
* If there is no ref mapping on the command line:
- if '--all' is specified, it is equivalent to specifying
<local> ":" <local> for all the existing local refs on the
command line
- otherwise, it is equivalent to specifying <ref> ":" <ref> for
all the refs that exist on both sides.
* <name> is just a shorthand for <name> ":" <name>
* <src> ":" <dst>
push ref that matches <src> to ref that matches <dst>.
- It is an error if <src> does not match exactly one of local
refs.
- It is an error if <dst> matches more than one remote refs.
- If <dst> does not match any remote refs, either
- it has to start with "refs/"; <dst> is used as the
destination literally in this case.
- <src> == <dst> and the ref that matched the <src> must not
exist in the set of remote refs; the ref matched <src>
locally is used as the name of the destination.
For example,
- "git-send-pack --all <remote>" works exactly as before;
- "git-send-pack <remote> master:upstream" pushes local master
to remote ref that matches "upstream". If there is no such
ref, it is an error.
- "git-send-pack <remote> master:refs/heads/upstream" pushes
local master to remote refs/heads/upstream, even when
refs/heads/upstream does not exist.
- "git-send-pack <remote> master" into an empty remote
repository pushes the local ref/heads/master to the remote
ref/heads/master.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It was broken by the IPv6 patches - we need to remove the ":" part from
the hostname for a successful name lookup.
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Try all addresses for given remote name until it succeeds. Also
supports IPv6.
Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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It really just boils down to one "get_remote_heads()" function, and a
common "struct ref" structure definition.
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Franck Bui-Huu
Christian Couder
Andy Whitcroft
Shawn Pearce
David Rientjes
Junio C Hamano
Linus Torvalds
Petr Baudis
Timo Hirvonen
Dennis Stosberg
Paul T Darga
Jon Loeliger
Serge E. Hallyn
Jason Riedy
Matt Draisey
YOSHIFUJI Hideaki / 吉藤英明
Paul Serice
Paul Collins
Andreas Ericsson
Johannes Schindelin
Peter Anvin
hpa
Jason Riedy
Martin Sivak
Timo Sirainen
Alecs King
Linus Torvalds