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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>
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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>
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* ms/http-auth:
Allow curl to rewind the read buffers
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* 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
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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>
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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>
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* 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
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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>
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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>
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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>
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* 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
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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>
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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>
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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>
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* rc/http-push:
use a hash of the lock token as the suffix for PUT/MOVE
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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>
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* 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
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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>
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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>
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Otherwise -Wunused-function (which is implied by -Wall) triggers.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* 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)
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* 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
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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>
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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>
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b1c7d4a (http-push: refactor lock-related headers creation for curl
requests, 2009-01-24) had many style violations that slipped through.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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DAV-related headers (more specifically, headers related to the lock token,
namely, If, Lock-Token, and Timeout) for curl requests are created and
allocated individually, eg a "if_header" variable for the "If: " header, a
"timeout_header" variable for the "Timeout: " header.
This patch provides a new function ("get_dav_token_headers") that creates
these header, saving methods from allocating memory, and from issuing a
"curl_slist_append()" call. The temporary string storage given to
curl_slist_append() is freed much earlier than the previous code with this
patch, but this change is safe, because curl_slist_append() keeps a copy
of the given string.
In part, this patch also addresses the fact that commit 753bc91 (Remove
the requirement opaquelocktoken uri scheme) did not update memory
allocations for DAV-related headers.
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current code is very inconsistent about which signals
are caught for doing cleanup of temporary files and lock
files. Some callsites checked only SIGINT, while others
checked a variety of death-dealing signals.
This patch factors out those signals to a single function,
and then calls it everywhere. For some sites, that means
this is a simple clean up. For others, it is an improvement
in that they will now properly clean themselves up after a
larger variety of signals.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a piece of code wanted to do some cleanup before exiting
(e.g., cleaning up a lockfile or a tempfile), our usual
strategy was to install a signal handler that did something
like this:
do_cleanup(); /* actual work */
signal(signo, SIG_DFL); /* restore previous behavior */
raise(signo); /* deliver signal, killing ourselves */
For a single handler, this works fine. However, if we want
to clean up two _different_ things, we run into a problem.
The most recently installed handler will run, but when it
removes itself as a handler, it doesn't put back the first
handler.
This patch introduces sigchain, a tiny library for handling
a stack of signal handlers. You sigchain_push each handler,
and use sigchain_pop to restore whoever was before you in
the stack.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lt/maint-wrap-zlib:
Wrap inflate and other zlib routines for better error reporting
Conflicts:
http-push.c
http-walker.c
sha1_file.c
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The function lock_remote() sends MKCOL requests to make leading
directories; However, if it does not put a forward slash '/' at the end of
the path, the server sends a 301 redirect.
By leaving the '/' in place, we can avoid this additional step.
Incidentally, at least one version of Curl (7.16.3) does not resend
credentials when it follows a 301 redirect, so this commit also fixes
a bug.
Original patch by Tay Ray Chuan <rctay89@gmail.com>.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When getting the result of remote_ls(), we were advancing the variable
"path" to the relative path inside the repository.
However, then we went on to malloc a bogus amount of memory: we were
subtracting the prefix length _again_, quite possibly getting something
negative, which xmalloc() interprets as really, really much.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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R. Tyler Ballance reported a mysterious transient repository corruption;
after much digging, it turns out that we were not catching and reporting
memory allocation errors from some calls we make to zlib.
This one _just_ wraps things; it doesn't do the "retry on low memory
error" part, at least not yet. It is an independent issue from the
reporting. Some of the errors are expected and passed back to the caller,
but we die when zlib reports it failed to allocate memory for now.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program calls remote_ls() to get list of files from the server over
HTTP; handle_remote_ls_ctx() is used to parse its response to populate
"struct remote_ls_ctx" that is returned from remote_ls().
The handle_remote_ls_ctx() function assumed that the server returns a
local path in href field, but RFC 4918 (14.7) demand of support full URI
(e.g. "http://localhost:8080/repo.git").
This resulted in push failure (e.g. git-http-push issues a PROPFIND
request to "/repo.git/alhost:8080/repo.git/refs/" to the server).
Signed-off-by: Kirill A. Korinskiy <catap@catap.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program flow of pushing over http is:
- call lock_remote() to issue a DAV_LOCK request to the server to lock
info/refs and branch refs being pushed into; handle_new_lock_ctx() is
used to parse its response to populate "struct remote_lock" that is
returned from lock_remote();
- send objects;
- call unlock_remote() to drop the lock.
The handle_new_lock_ctx() function assumed that the server will use a
lock token in opaquelocktoken URI scheme, which may have been an Ok
assumption under RFC 2518, but under RFC 4918 which obsoletes the older
standard it is not necessarily true.
This resulted in push failure (often resulted in "cannot lock existing
info/refs" error message) when talking to a server that does not use
opaquelocktoken URI scheme.
Signed-off-by: Kirill A. Korinskiy <catap@catap.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With all calls to alloc_ref() gone, we can remove it and then we're free
to give alloc_ref_from_str() the shorter name. It's a much nicer
interface, as the callers always need to have a name string when they
allocate a ref anyway and don't need to calculate and pass its length+1
any more.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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On ARM I have the following compilation errors:
CC fast-import.o
In file included from cache.h:8,
from builtin.h:6,
from fast-import.c:142:
arm/sha1.h:14: error: conflicting types for 'SHA_CTX'
/usr/include/openssl/sha.h:105: error: previous declaration of 'SHA_CTX' was here
arm/sha1.h:16: error: conflicting types for 'SHA1_Init'
/usr/include/openssl/sha.h:115: error: previous declaration of 'SHA1_Init' was here
arm/sha1.h:17: error: conflicting types for 'SHA1_Update'
/usr/include/openssl/sha.h:116: error: previous declaration of 'SHA1_Update' was here
arm/sha1.h:18: error: conflicting types for 'SHA1_Final'
/usr/include/openssl/sha.h:117: error: previous declaration of 'SHA1_Final' was here
make: *** [fast-import.o] Error 1
This is because openssl header files are always included in
git-compat-util.h since commit 684ec6c63c whenever NO_OPENSSL is not
set, which somehow brings in <openssl/sha1.h> clashing with the custom
ARM version. Compilation of git is probably broken on PPC too for the
same reason.
Turns out that the only file requiring openssl/ssl.h and openssl/err.h
is imap-send.c. But only moving those problematic includes there
doesn't solve the issue as it also includes cache.h which brings in the
conflicting local SHA1 header file.
As suggested by Jeff King, the best solution is to rename our references
to SHA1 functions and structure to something git specific, and define those
according to the implementation used.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Some places use the standard malloc/strdup without checking if the
allocation was successful; they should use xmalloc/xstrdup that
check the memory allocation result.
Signed-off-by: Dotan Barak <dotanba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When you misuse a git command, you are shown the usage string.
But this is currently shown in the dashed form. So if you just
copy what you see, it will not work, when the dashed form
is no longer supported.
This patch makes git commands show the dash-less version.
For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh
generates a dash-less usage string now.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is called when verify_pack() has its verbose argument set, and
verbose in this context makes sense only for the actual 'git verify-pack'
command. Therefore let's move show_pack_info() to builtin-verify-pack.c
instead and remove useless verbose argument from verify_pack().
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An earlier commit aa1dbc9 (Update http-push functionality, 2006-03-07)
borrowed some code from rev-list.c.
This copy and paste made sense back then, because mark_edges_uninteresting(),
and its helper mark_edge_parents_uninteresting(), accessed a file scope
static variable "revs" in rev-list.c, and http-push.c did not have nor care
about such a variable.
But these days they are already properly libified and live in list-objects.c
and they take "revs" as as an argument. Make use of them and lose 20 or
so lines.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Other signals are also common, for example SIGTERM and SIGHUP.
This patch modifies the lock file mechanism to catch more signals.
It also modifies http-push.c which was missing SIGTERM.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If locks are not cleaned up the repository is inaccessible for 10 minutes.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Also fix an underallocation in walker.c::interpret_target().
Signed-off-by: Krzysztof Kowalczyk <kkowalczyk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This simplifies a few things, makes a few things slightly more
complicated, but, more importantly, allows that, when struct ref can
represent a symref, http_fetch_ref() can return one.
Incidentally makes the string that http_fetch_ref() gets include "refs/"
(if appropriate), because that's how the name field of struct ref works.
As far as I can tell, the usage in walker:interpret_target() wouldn't have
worked previously, if it ever would have been used, which it wouldn't
(since the fetch process uses the hash instead of the name of the ref
there).
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mh/maint-http-proxy-fix:
Set proxy override with http_init()
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* cb/http-test:
http-push: add regression tests
http-push: push <remote> :<branch> deletes remote branch
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This mirrors current ssh/git push syntax.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In transport.c, proxy setting (the one from the remote conf) was set through
curl_easy_setopt() call, while http.c already does the same with the
http.proxy setting. We now just use this infrastructure instead, and make
http_init() now take the struct remote as argument so that it can take the
http_proxy setting from there, and any other property that would be added
later.
At the same time, we make get_http_walker() take a struct remote argument
too, and pass it to http_init(), which makes remote defined proxy be used
for more than get_refs_via_curl().
We leave out http-fetch and http-push, which don't use remotes for the
moment, purposefully.
Signed-off-by: Mike Hommey <mh@glandium.org>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:
if (some_expression)
free (some_expression);
with the now-equivalent:
free (some_expression);
It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:
http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html
FYI, the change below was prepared by running the following:
git ls-files -z | xargs -0 \
perl -0x3b -pi -e \
's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'
Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }". But that's ok, since there were none like
that in git sources.
Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code. That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this
if (x)
free (x);
else
foo ();
into this:
free (x);
else
foo ();
There were none of those here, either.
If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
option to make it detect free-like functions with different names]
http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free
Addendum:
Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/maint-http-push:
http-push: avoid a needless goto
http-push: do not get confused by submodules
http-push: avoid invalid memory accesses
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Alex Riesen
Mike Hommey
Junio C Hamano
Martin Storsjö
Johan Herland
Miklos Vajna
Amos King
Benjamin Kramer
Jay Soffian
Tay Ray Chuan
Steffen Prohaska
Jeff King
Johannes Schindelin
Linus Torvalds
Kirill A. Korinskiy
René Scharfe
Nicolas Pitre
Dotan Barak
Stephan Beyer
Paolo Bonzini
Clemens Buchacher
Krzysztof Kowalczyk
Daniel Barkalow
Jim Meyering