kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Carl Worth	b5b16990f8	Prevent git-upload-pack segfault if object cannot be found Signed-off-by: Carl Worth <cworth@cworth.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Michal Ostrowski	77cb17e940	Exec git programs without using PATH. The git suite may not be in PATH (and thus programs such as git-send-pack could not exec git-rev-list). Thus there is a need for logic that will locate these programs. Modifying PATH is not desirable as it result in behavior differing from the user's intentions, as we may end up prepending "/usr/bin" to PATH. - git C programs will use exec_git_cmd() APIs to exec sub-commands. - exec_git_cmd() will execute a git program by searching for it in the following directories: 1. --exec-path (as used by "git") 2. The GIT_EXEC_PATH environment variable. 3. $(gitexecdir) as set in Makefile (default value $(bindir)). - git wrapper will modify PATH as before to enable shell scripts to invoke "git-foo" commands. Ideally, shell scripts should use the git wrapper to become independent of PATH, and then modifying PATH will not be necessary. [jc: with minor updates after a brief review.] Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Andreas Ericsson	8d63013291	Server-side support for user-relative paths. This patch basically just removes the redundant code from {receive,upload}-pack.c in favour of the library code in path.c. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	9534f40bc4	Be careful when dereferencing tags. One caller of deref_tag() was not careful enough to make sure what deref_tag() returned was not NULL (i.e. we found a tag object that points at an object we do not have). Fix it, and warn about refs that point at such an incomplete tag where needed. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	1f5881bb5f	fix multi_ack. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	1bd8c8f00b	git-upload-pack: Support the multi_ack protocol This implements three things (trying very hard to be backwards compatible): It sends the "multi_ack" capability via the mechanism proposed by Sergey Vlasov. When the client sends "multi_ack" with at least one "want", multi_ack is enabled. When multi_ack is enabled, "continue" is appended to each "ACK" until either the server can not store more refs, or "done" is received. In contrast to the original protocol, as long as "continue" is sent, flushes are answered by a "NAK" (not just until an "ACK" was sent), and if "continue" was sent at least once, the last message is an "ACK" without "continue". Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	f0243f26f6	git-upload-pack: More efficient usage of the has_sha1 array This patch is based on Junio's proposal. It marks parents of common revs so that they do not clutter up the has_sha1 array. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	b5c367f75c	Fix cloning (memory corruption) upload-pack would set create_full_pack=1 if nr_has==0, but would ask later if nr_needs<MAX_NEEDS. If that proves true, it would ignore create_full_pack, and arguments would be written into unreserved memory. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	565ebbf79f	upload-pack: tighten request validation. This makes sure what the other end asks for are among what we offered to give them. Otherwise we would end up running git-rev-list with 20-byte nonsense, only to find it either die (because the object was not found) or waste time (because we ended up serving that phony 'client'). Also avoid wasting needs_sha1 pool to record duplicates, and detect cloning requests better. [this used to be on top of Johannes fetch-pack enhancements, which we are rewinding it for further testing for now, so the commit is rebased.] Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	af2d3aa4d8	Revert recent fetch-pack/upload-pack updates. 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>	19 years ago
Junio C Hamano	7efc8e4350	upload-pack: fix thinko in common-commit finder code. The code to check if we have the object the other side has was bogus (my fault). Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	0f8fdc3958	git-upload-pack: Support sending multiple ACK messages The current fetch/upload protocol works like this: - client sends revs it wants to have via "want" messages - client sends a flush message (message with len 0) - client sends revs it has via "have" messages - after one window (32 revs), a flush is sent - after each subsequent window, a flush is sent, and an ACK/NAK is received. (NAK means that server does not have any of the transmitted revs; ACK sends also the sha1 of the rev server has) - when the first ACK is received, client sends "done", and does not expect any further messages One special case, though: - if no ACK is received (only NAK's), and client runs out of revs to send, "done" is sent, and server sends just one more "NAK" A smarter scheme, which actually has a chance to detect more than one common rev, would be to send more than just one ACK. This patch implements the server side of the following extension to the protocol: - client sends at least one "want" message with "multi_ack" appended, like "want 1234567890123456789012345678901234567890 multi_ack" - if the server understands that extension, it will send ACK messages for all revs it has, not just the first one - server appends "continue" to the ACK messages like "ACK 1234567890123456789012345678901234567890 continue" until it has MAX_HAS-1 revs. In this manner, client knows when to stop sending revs by checking for the substring "continue" (and further knows that server understands multi_ack) In this manner, the protocol stays backwards compatible, since both client must send "want ... multi_ack" and server must answer with "ACK ... continue" to enable the extension. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	794f9fe7db	git-upload-pack: More efficient usage of the has_sha1 array This patch is based on Junio's proposal. It marks parents of common revs so that they do not clutter up the has_sha1 array. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	6b32884a09	upload-pack: Increase MAX_HAS. Later round would further improve fetch-pack not to send useless "have", but in the meantime, increase it to help upload-pack to find more common commits, as discussed on the list. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
H. Peter Anvin	b7080d8516	git-daemon: timeout, eliminate double DWIM It turns out that not only did git-daemon do DWIM, but git-upload-pack does as well. This is bad; security checks have to be performed after canonicalization, not before. Additionally, the current git-daemon can be trivially DoSed by spewing SYNs at the target port. This patch adds a --strict option to git-upload-pack to disable all DWIM, a --timeout option to git-daemon and git-upload-pack, and an --init-timeout option to git-daemon (which is typically set to a much lower value, since the initial request should come immediately from the client.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
H. Peter Anvin	960deccb26	git-daemon: timeout, eliminate double DWIM It turns out that not only did git-daemon do DWIM, but git-upload-pack does as well. This is bad; security checks have to be performed after canonicalization, not before. Additionally, the current git-daemon can be trivially DoSed by spewing SYNs at the target port. This patch adds a --strict option to git-upload-pack to disable all DWIM, a --timeout option to git-daemon and git-upload-pack, and an --init-timeout option to git-daemon (which is typically set to a much lower value, since the initial request should come immediately from the client.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	f6b42a81fd	Show peeled onion from upload-pack and server-info. This updates git-ls-remote to show SHA1 names of objects that are referred by tags, in the "ref^{}" notation. This would make git-findtags (without -t flag) almost trivial. git-peek-remote . \| sed -ne "s:^$target "'refs/tags/$.$^{}$:\1:p' Also Pasky could do: git-ls-remote --tags $remote \| sed -ne 's:$ refs/tags/.$^{}$:\1:p' to find out what object each of the remote tags refers to, and if he has one locally, run "git-fetch $remote tag $tagname" to automatically catch up with the upstream tags. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	e091eb9325	upload-pack: Do not choke on too many heads request. Cloning from a repository with more than 256 refs (heads and tags included) will choke, because upload-pack has a built-in limit of feeding not more than MAX_NEEDS (currently 256) heads to underlying git-rev-list. This is a problem when cloning a repository with many tags, like http://www.linux-mips.org/pub/scm/linux.git, which has 290+ tags. This commit introduces a new flag, --all, to git-rev-list, to include all refs in the repository. Updated upload-pack detects requests that ask more than MAX_NEEDS refs, and sends everything back instead. We may probably want to tweak the definitions of MAX_NEEDS and MAX_HAS, but that is a separate topic. Signed-off-by: Junio C Hamano <junkio@cox.net>	20 years ago
Jason Riedy	e72a7d45dc	Replace unsetenv() and setenv() with older putenv(). Solaris 8 doesn't have the newer unsetenv() and setenv() functions, so replace them with putenv(). The one use of unsetenv() in fsck-cache.c now sets GIT_ALTERNATE_OBJECT_ DIRECTORIES to the empty string. Every place that var is used, NULLs are also replaced with empty strings, so it's ok. Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>	20 years ago
Linus Torvalds	113b94751d	Make "upload-pack" match git-fetch-pack usage Do the default "try xyz.git xyz fails" thing for the directory we get passed in.	20 years ago
Linus Torvalds	319aae2756	Increase the number of possible heads requested from git-upload-pack Now that git-clone-pack exists, we actually have somebody requesting more than just a single head in a pack. So allow the Jeff's of this world to clone things with tens of heads.	20 years ago
Linus Torvalds	723c31fea2	Add "git_path()" and "head_ref()" helper functions. "git_path()" returns a static pathname pointer into the git directory using a printf-like format specifier. "head_ref()" works like "for_each_ref()", except for just the HEAD.	20 years ago
Linus Torvalds	75bfc6c232	Make git-fetch-pack actually do all the unpacking etc. It returns the result SHA1 on stdout, so you can do remote=$(git-fetch-pack host:dir branchname) and it will unpack the objects and "remote" will be the SHA1 name of the branch on the other side. You can then save that off, or merge it, or whatever.	20 years ago
Linus Torvalds	fb9040cc83	Make git-fetch-pack and git-upload-pack negotiate needs/haves fully Now the only piece missing is actually generating the pack-file.	20 years ago
Linus Torvalds	def88e9afb	Commit first cut at "git-fetch-pack" It's meant to be used by "git fetch" for the local and ssh case. It doesn't actually do the fetching now, but it does discover the common commit point.	20 years ago

24 Commits (3844cdc8f19dcd848003586d6b98c9f2bd36a7d0)