summaryrefslogtreecommitdiff
path: root/builtin/receive-pack.c
AgeCommit message (Collapse)AuthorFilesLines
2011-05-19receive-pack: eliminate duplicate .have refsLibravatar Jeff King1-3/+13
When receiving a push, we advertise ref tips from any alternate repositories, in case that helps the client send a smaller pack. Since these refs don't actually exist in the destination repository, we don't transmit the real ref names, but instead use the pseudo-ref ".have". If your alternate has a large number of duplicate refs (for example, because it is aggregating objects from many related repositories, some of which will have the same tags and branch tips), then we will send each ".have $sha1" line multiple times. This is a pointless waste of bandwidth, as we are simply repeating the same fact to the client over and over. This patch eliminates duplicate .have refs early on. It does so efficiently by sorting the complete list and skipping duplicates. This has the side effect of re-ordering the .have lines by ascending sha1; this isn't a problem, though, as the original order was meaningless. There is a similar .have system in fetch-pack, but it does not suffer from the same problem. For each alternate ref we consider in fetch-pack, we actually open the object and mark it with the SEEN flag, so duplicates are automatically culled. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-19refactor refs_from_alternate_cb to allow passing extra dataLibravatar Jeff King1-1/+1
The foreach_alt_odb function triggers a callback for each alternate object db we have, with room for a single void pointer as data. Currently, we always call refs_from_alternate_cb as the callback function, and then pass another callback (to receive each ref individually) as the void pointer. This has two problems: 1. C technically forbids stuffing a function pointer into a "void *". In practice, this probably doesn't matter on any architectures git runs on, but it never hurts to follow the letter of the law. 2. There is no room for an extra data pointer. Indeed, the alternate_ref_fn that refs_from_alternate_cb calls takes a void* for data, but we always pass it NULL. Instead, let's properly stuff our function pointer into a data struct, which also leaves room for an extra caller-supplied data pointer. And to keep things simple for existing callers, let's make a for_each_alternate_ref function that takes care of creating the extra struct. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-03sparse: Fix errors and silence warningsLibravatar Stephen Boyd1-1/+1
* load_file() returns a void pointer but is using 0 for the return value * builtin/receive-pack.c forgot to include builtin.h * packet_trace_prefix can be marked static * ll_merge takes a pointer for its last argument, not an int * crc32 expects a pointer as the second argument but Z_NULL is defined to be 0 (see 38f4d13 sparse fix: Using plain integer as NULL pointer, 2006-11-18 for more info) Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-22Merge branch 'jc/maint-fetch-alt'Libravatar Junio C Hamano1-32/+3
* jc/maint-fetch-alt: fetch-pack: objects in our alternates are available to us refs_from_alternate: helper to use refs from alternates Conflicts: builtin/receive-pack.c
2011-03-19Merge branch 'jk/trace-sifter'Libravatar Junio C Hamano1-0/+2
* jk/trace-sifter: trace: give repo_setup trace its own key add packet tracing debug code trace: add trace_strbuf trace: factor out "do we want to trace" logic trace: refactor to support multiple env variables trace: add trace_vprintf
2011-03-17refs_from_alternate: helper to use refs from alternatesLibravatar Junio C Hamano1-32/+3
The receiving end of "git push" advertises the objects that the repository itself does not use, but are at the tips of refs in other repositories whose object databases are used as alternates for it. This helps it avoid having to receive (and the pusher having to send) objects that are already available to the receiving repository via the alternates mechanism. Tweak the helper function that implements this feature, and move it to transport.[ch] for future reuse by other programs. The additional test demonstrates how this optimization is helping "git push", and "git fetch" is ignorant about it. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn O. Pearce <spearce@spearce.org>
2011-03-17Name make_*_path functions more accuratelyLibravatar Carlos Martín Nieto1-1/+1
Rename the make_*_path functions so it's clearer what they do, in particlar make clear what the differnce between make_absolute_path and make_nonrelative_path is by renaming them real_path and absolute_path respectively. make_relative_path has an understandable name and is renamed to relative_path to maintain the name convention. The function calls have been replaced 1-to-1 in their usage. Signed-off-by: Carlos Martín Nieto <cmn@elego.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08add packet tracing debug codeLibravatar Jeff King1-0/+2
This shows a trace of all packets coming in or out of a given program. This can help with debugging object negotiation or other protocol issues. To keep the code changes simple, we operate at the lowest level, meaning we don't necessarily understand what's in the packets. The one exception is a packet starting with "PACK", which causes us to skip that packet and turn off tracing (since the gigantic pack data will not be interesting to read, at least not in the trace format). We show both written and read packets. In the local case, this may mean you will see packets twice (written by the sender and read by the receiver). However, for cases where the other end is remote, this allows you to see the full conversation. Packet tracing can be enabled with GIT_TRACE_PACKET=<foo>, where <foo> takes the same arguments as GIT_TRACE. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-05string_list: Add STRING_LIST_INIT macro and make use of it.Libravatar Thiago Farina1-1/+1
Acked-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thiago Farina <tfransosi@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-30Merge branch 'jp/string-list-api-cleanup'Libravatar Junio C Hamano1-2/+2
* jp/string-list-api-cleanup: string_list: Fix argument order for string_list_append string_list: Fix argument order for string_list_lookup string_list: Fix argument order for string_list_insert_at_index string_list: Fix argument order for string_list_insert string_list: Fix argument order for for_each_string_list string_list: Fix argument order for print_string_list
2010-06-27string_list: Fix argument order for string_list_appendLibravatar Julian Phillips1-1/+1
Update the definition and callers of string_list_append to use the string_list as the first argument. This helps make the string_list API easier to use by being more consistent. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-27string_list: Fix argument order for string_list_lookupLibravatar Julian Phillips1-1/+1
Update the definition and callers of string_list_lookup to use the string_list as the first argument. This helps make the string_list API easier to use by being more consistent. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-21Merge branch 'tr/receive-pack-aliased-update-fix'Libravatar Junio C Hamano1-2/+2
* tr/receive-pack-aliased-update-fix: check_aliased_update: strcpy() instead of strcat() to copy
2010-06-21Merge branch 'gv/portable'Libravatar Junio C Hamano1-1/+1
* gv/portable: test-lib: use DIFF definition from GIT-BUILD-OPTIONS build: propagate $DIFF to scripts Makefile: Tru64 portability fix Makefile: HP-UX 10.20 portability fixes Makefile: HPUX11 portability fixes Makefile: SunOS 5.6 portability fix inline declaration does not work on AIX Allow disabling "inline" Some platforms lack socklen_t type Make NO_{INET_NTOP,INET_PTON} configured independently Makefile: some platforms do not have hstrerror anywhere git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition test_cmp: do not use "diff -u" on platforms that lack one fixup: do not unconditionally disable "diff -u" tests: use "test_cmp", not "diff", when verifying the result Do not use "diff" found on PATH while building and installing enums: omit trailing comma for portability Makefile: -lpthread may still be necessary when libc has only pthread stubs Rewrite dynamic structure initializations to runtime assignment Makefile: pass CPPFLAGS through to fllow customization Conflicts: Makefile wt-status.h
2010-05-31enums: omit trailing comma for portabilityLibravatar Gary V. Vaughan1-1/+1
Without this patch at least IBM VisualAge C 5.0 (I have 5.0.2) on AIX 5.1 fails to compile git. enum style is inconsistent already, with some enums declared on one line, some over 3 lines with the enum values all on the middle line, sometimes with 1 enum value per line... and independently of that the trailing comma is sometimes present and other times absent, often mixing with/without trailing comma styles in a single file, and sometimes in consecutive enum declarations. Clearly, omitting the comma is the more portable style, and this patch changes all enum declarations to use the portable omitted dangling comma style consistently. Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-21Merge branch 'js/maint-receive-pack-symref-alias'Libravatar Junio C Hamano1-37/+91
* js/maint-receive-pack-symref-alias: t5516-fetch-push.sh: style cleanup receive-pack: detect aliased updates which can occur with symrefs receive-pack: switch global variable 'commands' to a parameter Conflicts: t/t5516-fetch-push.sh
2010-02-22Move 'builtin-*' into a 'builtin/' subdirectoryLibravatar Linus Torvalds1-0/+800
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>