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2009-06-13Merge branch 'rc/http-push'Libravatar Junio C Hamano1-492/+93
* rc/http-push: (22 commits) http*: add helper methods for fetching objects (loose) http*: add helper methods for fetching packs http: use new http API in fetch_index() http*: add http_get_info_packs http-push.c::fetch_symref(): use the new http API http-push.c::remote_exists(): use the new http API http.c::http_fetch_ref(): use the new http API transport.c::get_refs_via_curl(): use the new http API http.c: new functions for the http API http: create function end_url_with_slash http*: move common variables and macros to http.[ch] transport.c::get_refs_via_curl(): do not leak refs_url Don't expect verify_pack() callers to set pack_size http-push: do not SEGV after fetching a bad pack idx file http*: copy string returned by sha1_to_hex http-walker: verify remote packs http-push, http-walker: style fixes t5550-http-fetch: test fetching of packed objects http-push: fix missing "#ifdef USE_CURL_MULTI" around "is_running_queue" http-push: send out fetch requests on queue ...
2009-06-13Merge branch 'rc/maint-http-local-slot-fix'Libravatar Junio C Hamano1-0/+6
* rc/maint-http-local-slot-fix: http*: cleanup slot->local after fclose
2009-06-13Merge branch 'cb/match_refs_internal_tail'Libravatar Junio C Hamano1-7/+4
* cb/match_refs_internal_tail: match_refs: search ref list tail internally
2009-06-06http*: add helper methods for fetching objects (loose)Libravatar Tay Ray Chuan1-198/+15
The code handling the fetching of loose objects in http-push.c and http-walker.c have been refactored into new methods and a new struct (object_http_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_object_request - process_http_object_request - finish_http_object_request - abort_http_object_request - release_http_object_request and the new struct is http_object_request. RANGER_HEADER_SIZE and no_pragma_header is no longer made available outside of http.c, since after the above changes, there are no other instances of usage outside of http.c. Remove members of the transfer_request struct in http-push.c and http-walker.c, including filename, real_sha1 and zret, as they are used no longer used. Move the methods append_remote_object_url() and get_remote_object_url() from http-push.c to http.c. Additionally, get_remote_object_url() is no longer defined only when USE_CURL_MULTI is defined, since non-USE_CURL_MULTI code in http.c uses it (namely, in new_http_object_request()). Refactor code from http-push.c::start_fetch_loose() and http-walker.c::start_object_fetch_request() that deals with the details of coming up with the filename to store the retrieved object, resuming a previously aborted request, and making a new curl request, into a new function, new_http_object_request(). Refactor code from http-walker.c::process_object_request() into the function, process_http_object_request(). Refactor code from http-push.c::finish_request() and http-walker.c::finish_object_request() into a new function, finish_http_object_request(). It returns the result of the move_temp_to_file() invocation. Add a function, release_http_object_request(), which cleans up object request data. http-push.c and http-walker.c invoke this function separately; http-push.c::release_request() and http-walker.c::release_object_request() do not invoke this function. Add a function, abort_http_object_request(), which unlink()s the object file and invokes release_http_object_request(). Update http-walker.c::abort_object_request() to use this. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: add helper methods for fetching packsLibravatar Tay Ray Chuan1-84/+26
The code handling the fetching of packs in http-push.c and http-walker.c have been refactored into new methods and a new struct (http_pack_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_pack_request - finish_http_pack_request - release_http_pack_request and the new struct is http_pack_request. Add a function, new_http_pack_request(), that deals with the details of coming up with the filename to store the retrieved packfile, resuming a previously aborted request, and making a new curl request. Update http-push.c::start_fetch_packed() and http-walker.c::fetch_pack() to use this. Add a function, finish_http_pack_request(), that deals with renaming the pack, advancing the pack list, and installing the pack. Update http-push.c::finish_request() and http-walker.c::fetch_pack to use this. Update release_request() in http-push.c and http-walker.c to invoke release_http_pack_request() to clean up pack request helper data. The local_stream member of the transfer_request struct in http-push.c has been removed, as the packfile pointer will be managed in the struct http_pack_request. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: add http_get_info_packsLibravatar Tay Ray Chuan1-170/+9
http-push.c and http-walker.c no longer have to use fetch_index or setup_index; they simply need to use http_get_info_packs, a new http method, in their fetch_indices implementations. Move fetch_index() and rename to fetch_pack_index() in http.c; this method is not meant to be used outside of http.c. It invokes end_url_with_slash with base_url; apart from that change, the code is identical. Move setup_index() and rename to fetch_and_setup_pack_index() in http.c; this method is not meant to be used outside of http.c. Do not immediately set ret to 0 in http-walker.c::fetch_indices(); instead do it in the HTTP_MISSING_TARGET case, to make it clear that the HTTP_OK and HTTP_MISSING_TARGET cases both return 0. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push.c::fetch_symref(): use the new http APILibravatar Mike Hommey1-17/+3
Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push.c::remote_exists(): use the new http APILibravatar Mike Hommey1-19/+12
Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: move common variables and macros to http.[ch]Libravatar Tay Ray Chuan1-7/+1
Move RANGE_HEADER_SIZE to http.h. Create no_pragma_header, the curl header list containing the header "Pragma:" in http.[ch]. It is allocated in http_init, and freed in http_cleanup. This replaces the no_pragma_header in http-push.c, and the no_pragma_header member in walker_data in http-walker.c. Create http_is_verbose. It is to be used by methods in http.c, and is modified at the entry points of http.c's users, namely http-push.c (when parsing options) and http-walker.c (in get_http_walker). Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push: do not SEGV after fetching a bad pack idx fileLibravatar Tay Ray Chuan1-0/+2
In a70c232 ("http-fetch: do not SEGV after fetching a bad pack idx file"), changes were made to the setup_index method in http-fetch.c (known in its present form as http-walker.c after 30ae764 ("Modularize commit-walker")). Since http-push.c has similar similar code for processing index files, these changes should apply to http-push.c's implementation of setup_index as well. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: copy string returned by sha1_to_hexLibravatar Tay Ray Chuan1-23/+24
In the fetch_index implementations in http-push.c and http-walker.c, the string returned by sha1_to_hex is assumed to stay immutable. This patch ensures that hex stays immutable by copying the string returned by sha1_to_hex (via xstrdup) and frees it subsequently. It also refactors free()'s and fclose()'s with labels. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push, http-walker: style fixesLibravatar Tay Ray Chuan1-19/+29
- Use tabs to indent, instead of spaces. - Do not use curly-braces around a single statement body in if/while statement; - Do not start multi-line comment with description on the first line after "/*", i.e. /* * We prefer this over... */ /* comments like * this (notice the first line) */ Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push: fix missing "#ifdef USE_CURL_MULTI" around "is_running_queue"Libravatar Tay Ray Chuan1-0/+2
As it is breaking the build when USE_CURL_MULTI is not defined. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http-push: send out fetch requests on queueLibravatar Tay Ray Chuan1-11/+26
Previously, requests for remote files were simply added to the queue (pointed to by request_queue_head) and no transfer actually takes place (the fill function add_fill_function() is not added until line 2441), even though code that followed may rely on these remote files to be present (eg. the setup_revisions invocation). The code that sends out the requests on the request queue is refactored into the method run_request_queue. After the get_dav_remote_heads invocation (ie. after fetch requests are added to the queue), the requests on the queue are sent out through an invocation to run_request_queue. This invocation to run_request_queue entails adding a fill function before pushing checks take place, which may lead to accidental, unwanted pushes previously. The flag is_running_queue is introduced to prevent this from occurring. fill_active_slot is made to check the flag is_running_queue before the sending of the requests proceeds. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06Merge branch 'rc/maint-http-local-slot-fix' into rc/http-pushLibravatar Junio C Hamano1-0/+6
* rc/maint-http-local-slot-fix: http*: cleanup slot->local after fclose
2009-06-06http*: cleanup slot->local after fcloseLibravatar Tay Ray Chuan1-0/+6
Set slot->local to NULL after doing a fclose() on the file it points to. This prevents the passing of a FILE* pointer to a fclose()'d file to ftell() in http.c::run_active_slot(). This issue was raised by Clemens Buchacher on 30th May 2009: http://www.spinics.net/lists/git/msg104623.html Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-01match_refs: search ref list tail internallyLibravatar Clemens Buchacher1-7/+4
Avoid code duplication by moving list tail search to match_refs(). This does not change the semantics, except for http-push, which now inserts to the front of the ref list in order to get rid of the global remote_tail. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31http-push: reuse existing is_null_refLibravatar Clemens Buchacher1-16/+5
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25Merge branch 'ar/unlink-err' into maintLibravatar Junio C Hamano1-6/+6
* ar/unlink-err: print unlink(2) errno in copy_or_link_directory replace direct calls to unlink(2) with unlink_or_warn Introduce an unlink(2) wrapper which gives warning if unlink failed
2009-05-24Merge branch 'maint'Libravatar Junio C Hamano1-1/+2
* maint: http-push.c::remove_locks(): fix use after free
2009-05-24Merge branch 'maint-1.6.2' into maintLibravatar Junio C Hamano1-1/+2
* maint-1.6.2: http-push.c::remove_locks(): fix use after free
2009-05-24Merge branch 'maint-1.6.1' into maint-1.6.2Libravatar Junio C Hamano1-1/+2
* maint-1.6.1: http-push.c::remove_locks(): fix use after free
2009-05-24Merge branch 'maint-1.6.0' into maint-1.6.1Libravatar Junio C Hamano1-1/+2
* maint-1.6.0: http-push.c::remove_locks(): fix use after free
2009-05-24http-push.c::remove_locks(): fix use after freeLibravatar Alex Riesen1-1/+2
Noticed and reported by Serhat Şevki Dinçer. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Acked-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-21Terminate argv with NULL before calling setup_revisions()Libravatar Nguyễn Thái Ngọc Duy1-1/+2
It is convention that argv should be terminated with NULL, even if argc is used to specify the size of argv. setup_revisions() requires this and may segfault otherwise. This patch makes sure that all argv (that I can find) is NULL terminated. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-29replace direct calls to unlink(2) with unlink_or_warnLibravatar Alex Riesen1-6/+6
This helps to notice when something's going wrong, especially on systems which lock open files. I used the following criteria when selecting the code for replacement: - it was already printing a warning for the unlink failures - it is in a function which already printing something or is called from such a function - it is in a static function, returning void and the function is only called from a builtin main function (cmd_) - it is in a function which handles emergency exit (signal handlers) - it is in a function which is obvously cleaning up the lockfiles Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-11Replace ",<,>,& with their respective XML entities in DAV requestsLibravatar Mike Hommey1-2/+34
If the repo url or the user email contain XML special characters, the remote DAV server is likely to reject the LOCK requests because the XML is then malformed. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-07Merge branch 'ms/http-auth'Libravatar Junio C Hamano1-0/+24
* ms/http-auth: Allow curl to rewind the read buffers
2009-04-06Merge branch 'jc/shared-literally'Libravatar Junio C Hamano1-1/+0
* jc/shared-literally: t1301: loosen test for forced modes set_shared_perm(): sometimes we know what the final mode bits should look like move_temp_to_file(): do not forget to chmod() in "Coda hack" codepath Move chmod(foo, 0444) into move_temp_to_file() "core.sharedrepository = 0mode" should set, not loosen
2009-04-02Allow curl to rewind the read buffersLibravatar Martin Storsjö1-0/+24
When using multi-pass authentication methods, the curl library may need to rewind the read buffers (depending on how much already has been fed to the server) used for providing data to HTTP PUT, POST or PROPFIND, and in order to allow the library to do so, we need to tell it how by providing either an ioctl callback or a seek callback. This patch adds an ioctl callback, which should be usable on older curl versions (since 7.12.3) than the seek callback (introduced in curl 7.18.0). Some HTTP servers (such as Apache) give an 401 error reply immediately after receiving the headers (so no data has been read from the read buffers, and thus no rewinding is needed), but other servers (such as Lighttpd) only replies after the whole request has been sent and all data has been read from the read buffers, making rewinding necessary. Signed-off-by: Martin Storsjo <martin@martin.st> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-27Move chmod(foo, 0444) into move_temp_to_file()Libravatar Johan Herland1-1/+0
When writing out a loose object or a pack (index), move_temp_to_file() is called to finalize the resulting file. These files (loose files and packs) should all have permission mode 0444 (modulo adjust_shared_perm()). Therefore, instead of doing chmod(foo, 0444) explicitly from each callsite (or even forgetting to chmod() at all), do the chmod() call from within move_temp_to_file(). Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-26Merge branch 'mg/http-auth'Libravatar Junio C Hamano1-77/+85
* mg/http-auth: http-push.c: use a faux remote to pass to http_init Do not name "repo" struct "remote" in push_http.c http.c: CURLOPT_NETRC_OPTIONAL is not available in ancient versions of cURL http authentication via prompts http_init(): Fix config file parsing http.c: style cleanups Conflicts: http-push.c
2009-03-23http-push: using error() and warning() as appropriateLibravatar Miklos Vajna1-3/+3
Change three occurences of using inconsistent error/warning reporting by using the relevant error() / warning() calls to be consitent with the rest of the code. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-19http-push.c: use a faux remote to pass to http_initLibravatar Amos King1-1/+9
This patch allows http_push to use http authentication via prompts. You may notice that there is a remote struct that only contains the url from the repo struct. This struct is a temporary fix for a larger issue, but gets http authentication via prompts out the door, and keeps users from having to store passwords in plain text files. Signed-off-by: Amos King <amos.l.king@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-19Do not name "repo" struct "remote" in push_http.cLibravatar Amos King1-76/+76
This patch is a first step in getting http-push to use http authentication via prompts. The patch renames remote to repo so that it doesn't get confusing with the same remote that is passed around when using http. Signed-off-by: Amos King <amos.l.king@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-17Merge branch 'js/remote-improvements'Libravatar Junio C Hamano1-70/+2
* js/remote-improvements: (23 commits) builtin-remote.c: no "commented out" code, please builtin-remote: new show output style for push refspecs builtin-remote: new show output style remote: make guess_remote_head() use exact HEAD lookup if it is available builtin-remote: add set-head subcommand builtin-remote: teach show to display remote HEAD builtin-remote: fix two inconsistencies in the output of "show <remote>" builtin-remote: make get_remote_ref_states() always populate states.tracked builtin-remote: rename variables and eliminate redundant function call builtin-remote: remove unused code in get_ref_states builtin-remote: refactor duplicated cleanup code string-list: new for_each_string_list() function remote: make match_refs() not short-circuit remote: make match_refs() copy src ref before assigning to peer_ref remote: let guess_remote_head() optionally return all matches remote: make copy_ref() perform a deep copy remote: simplify guess_remote_head() move locate_head() to remote.c move duplicated ref_newer() to remote.c move duplicated get_local_heads() to remote.c ... Conflicts: builtin-clone.c
2009-03-15Fix various dead stores found by the clang static analyzerLibravatar Benjamin Kramer1-1/+1
http-push.c::finish_request(): request is initialized by the for loop index-pack.c::free_base_data(): b is initialized by the for loop merge-recursive.c::process_renames(): move compare to narrower scope, and remove unused assignments to it remove unused variable renames2 xdiff/xdiffi.c::xdl_recs_cmp(): remove unused variable ec xdiff/xemit.c::xdl_emit_diff(): xche is always overwritten Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26move duplicated ref_newer() to remote.cLibravatar Jay Soffian1-49/+0
ref_newer() appears to have been copied from builtin-send-pack.c to http-push.c via cut and paste. This patch moves the function and its helper unmark_and_free() to remote.c. There was a slight difference between the two implementations, one used TMP_MARK for the mark, the other used 1. Per Jeff King, I went with TMP_MARK as more correct. This is in preparation for being able to call it from builtin-remote.c Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-26move duplicated get_local_heads() to remote.cLibravatar Jay Soffian1-21/+2
get_local_heads() appears to have been copied from builtin-send-pack.c to http-push.c via cut and paste. This patch moves the function and its helper one_local_ref() to remote.c. The two copies of one_local_ref() were not identical. I used the more recent version from builtin-send-pack.c after confirming with Jeff King that it was an oversight that commit 30affa1e did not update both copies. This is in preparation for being able to call it from builtin-remote.c Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-15Merge branch 'rc/http-push'Libravatar Junio C Hamano1-2/+11
* rc/http-push: use a hash of the lock token as the suffix for PUT/MOVE
2009-02-15use a hash of the lock token as the suffix for PUT/MOVELibravatar Tay Ray Chuan1-2/+11
After 753bc91 ("Remove the requirement opaquelocktoken uri scheme"), lock tokens are in the URI forms in which they are received from the server, eg. 'opaquelocktoken:', 'urn:uuid:'. However, "start_put" (and consequently "start_move"), which attempts to create a unique temporary file using the UUID of the lock token, inadvertently uses the lock token in its URI form. These file operations on the server may not be successful (specifically, in Windows), due to the colon ':' character from the URI form of the lock token in the file path. This patch uses a hash of the lock token instead, guaranteeing only "safe" characters (a-f, 0-9) are used in the file path. The token's hash is generated when the lock token is received from the server in handle_new_lock_ctx, minimizing the number of times of hashing. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-05Merge branch 'rc/http-push'Libravatar Junio C Hamano1-37/+30
* rc/http-push: http-push: wrap signature of get_remote_object_url http-push: add back underscore separator before lock token http-push.c: get_remote_object_url() is only used under USE_CURL_MULTI http-push: refactor request url creation
2009-02-05Merge branch 'lt/maint-wrap-zlib' into maintLibravatar Junio C Hamano1-4/+4
* lt/maint-wrap-zlib: Wrap inflate and other zlib routines for better error reporting Conflicts: http-push.c http-walker.c sha1_file.c
2009-02-03http-push: wrap signature of get_remote_object_urlLibravatar Tay Ray Chuan1-1/+2
The signature of get_remote_object_url stands at 96 characters (as pointed out by Dscho); this patch wraps it so that it conforms to the 80 characters guideline. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-03http-push: add back underscore separator before lock tokenLibravatar Tay Ray Chuan1-0/+1
817d14a (http-push: refactor request url creation, 2009-01-31) removed the underscore separator between the object path and the appended lock token. This patch adds it back. This would be keeping in line with the aforementioned patch's objective of refactoring, without changing the behaviour and effect, of the code. This would also be useful for testing if the lock token has been indeed appended to the object url. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-02http-push.c: get_remote_object_url() is only used under USE_CURL_MULTILibravatar Junio C Hamano1-7/+8
Otherwise -Wunused-function (which is implied by -Wall) triggers. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-31Merge branch 'sp/runtime-prefix'Libravatar Junio C Hamano1-0/+2
* sp/runtime-prefix: Windows: Revert to default paths and convert them by RUNTIME_PREFIX Compute prefix at runtime if RUNTIME_PREFIX is set Modify setup_path() to only add git_exec_path() to PATH Add calls to git_extract_argv0_path() in programs that call git_config_* git_extract_argv0_path(): Move check for valid argv0 from caller to callee Refactor git_set_argv0_path() to git_extract_argv0_path() Move computation of absolute paths from Makefile to runtime (in preparation for RUNTIME_PREFIX)
2009-01-31Merge branch 'jk/signal-cleanup'Libravatar Junio C Hamano1-5/+3
* jk/signal-cleanup: t0005: use SIGTERM for sigchain test pager: do wait_for_pager on signal death refactor signal handling for cleanup functions chain kill signals for cleanup functions diff: refactor tempfile cleanup handling Windows: Fix signal numbers
2009-01-31http-push: refactor request url creationLibravatar Tay Ray Chuan1-37/+27
Introduce two helper functions append_remote_object_url() and get_remote_object_url() and use them to remove various places that allocate and format the URL by hand. These functions generate a URL that point at the fan-out directory inside the remote object store (e.g. http://host/path/to/repo/objects/a1/) or at an individual loose object file. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-26Add calls to git_extract_argv0_path() in programs that call git_config_*Libravatar Steffen Prohaska1-0/+2
Programs that use git_config need to find the global configuration. When runtime prefix computation is enabled, this requires that git_extract_argv0_path() is called early in the program's main(). This commit adds the necessary calls. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>