kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Stefan Beller	72710165c9	documentation: improve submodule.<name>.{url, path} description Unlike the url variable a user cannot override the the path variable, as it is part of the content together with the gitlink at the given path. To avoid confusion do not mention the .path variable in the config section and rely on the documentation provided in gitmodules[5]. Enhance the description of submodule.<name>.url and mention its two use cases separately. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	8 years ago
Petr Stodulka	26a7b23429	http: control GSSAPI credential delegation Delegation of credentials is disabled by default in libcurl since version 7.21.7 due to security vulnerability CVE-2011-2192. Which makes troubles with GSS/kerberos authentication when delegation of credentials is required. This can be changed with option CURLOPT_GSSAPI_DELEGATION in libcurl with set expected parameter since libcurl version 7.22.0. This patch provides new configuration variable http.delegation which corresponds to curl parameter "--delegation" (see man 1 curl). The following values are supported: * none (default). * policy * always Signed-off-by: Petr Stodulka <pstodulk@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	8 years ago
Matthieu Moy	14d16e2b35	Documentation/config: default for color.* is color.ui Since `4c7f181` (make color.ui default to 'auto', 2013-06-10), the default for color.* when nothing is set is 'auto' and we still claimed that the default was 'false'. Be more precise by saying explicitly that the default is to follow color.ui, and recall that the default is 'auto' to avoid one indirection for the reader. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	c08db5a2d0	receive-pack: allow a maximum input size to be specified Receive-pack feeds its input to either index-pack or unpack-objects, which will happily accept as many bytes as a sender is willing to provide. Let's allow an arbitrary cutoff point where we will stop writing bytes to disk. Cleaning up what has already been written to disk is a related problem that is not addressed by this patch. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Stefan Beller	31224cbdc7	clone: recursive and reference option triggers submodule alternates When `--recursive` and `--reference` is given, it is reasonable to expect that the submodules are created with references to the submodules of the given alternate for the superproject. An initial attempt to do this was presented to the mailing list, which used flags that are passed around ("--super-reference") that instructed the submodule clone to look for a reference in the submodules of the referenced superproject. This is not well thought out, as any further `submodule update` should also respect the initial setup. When a new submodule is added to the superproject and the alternate of the superproject does not know about that submodule yet, we rather error out informing the user instead of being unclear if we did or did not use a submodules alternate. To solve this problem introduce new options that store the configuration for what the user wanted originally. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	07e7dbf0db	gc: default aggressive depth to 50 This commit message is long and has lots of background and numbers. The summary is: the current default of 250 doesn't save much space, and costs CPU. It's not a good tradeoff. Read on for details. The "--aggressive" flag to git-gc does three things: 1. use "-f" to throw out existing deltas and recompute from scratch 2. use "--window=250" to look harder for deltas 3. use "--depth=250" to make longer delta chains Items (1) and (2) are good matches for an "aggressive" repack. They ask the repack to do more computation work in the hopes of getting a better pack. You pay the costs during the repack, and other operations see only the benefit. Item (3) is not so clear. Allowing longer chains means fewer restrictions on the deltas, which means potentially finding better ones and saving some space. But it also means that operations which access the deltas have to follow longer chains, which affects their performance. So it's a tradeoff, and it's not clear that the tradeoff is even a good one. The existing "250" numbers for "--aggressive" come originally from this thread: http://public-inbox.org/git/alpine.LFD.0.9999.0712060803430.13796@woody.linux-foundation.org/ where Linus says: So when I said "--depth=250 --window=250", I chose those numbers more as an example of extremely aggressive packing, and I'm not at all sure that the end result is necessarily wonderfully usable. It's going to save disk space (and network bandwidth - the delta's will be re-used for the network protocol too!), but there are definitely downsides too, and using long delta chains may simply not be worth it in practice. There are some numbers in that thread, but they're mostly focused on the improved window size, and measure the improvement from --depth=250 and --window=250 together. E.g.: http://public-inbox.org/git/9e4733910712062006l651571f3w7f76ce64c6650dff@mail.gmail.com/ talks about the improved run-time of "git-blame", which comes from the reduced pack size. But most of that reduction is coming from --window=250, whereas most of the extra costs come from --depth=250. There's a link in that thread showing that increasing the depth beyond 50 doesn't seem to help much with the size: https://vcscompare.blogspot.com/2008/06/git-repack-parameters.html but again, no discussion of the timing impact. In an earlier thread from Ted Ts'o which discussed setting the non-aggressive default (from 10 to 50): http://public-inbox.org/git/20070509134958.GA21489%40thunk.org/ we have more numbers, with the conclusion that going past 50 does not help size much, and hurts the speed of normal operations. So from that, we might guess that 50 is actually a sweet spot, even for aggressive, if we interpret aggressive to "spend time now to make a better pack". It is not clear that "--depth=250" is actually a better pack. It may be slightly _smaller_, but it carries a run-time penalty. Here are some more recent timings I did to verify that. They show three things: - the size of the resulting pack (so disk saved to store, bandwidth saved on clones/fetches) - the cost of "rev-list --objects --all", which shows the effect of the delta chains on trees (commits typically don't delta, and the command doesn't touch the blobs at all) - the cost of "log -Sfoo", which will additionally access each blob All cases were repacked with "git repack -adf --depth=$d --window=250" (so basically, what would happen if we tweaked the "gc --aggressive" default depth). The timings are all wall-clock best-of-3. The machine itself has plenty of RAM compared to the repositories (which is probably typical of most workstations these days), so we're really measuring CPU usage, as the whole thing will be in disk cache after the first run. The core.deltaBaseCacheLimit is at its default of 96MiB. It's possible that tweaking it would have some impact on the tests, as some of them (especially "log -S" on a large repo) are likely to overflow that. But bumping that carries a run-time memory cost, so for these tests, I focused on what we could do just with the on-disk pack tradeoffs. Each test is done for four depths: 250 (the current value), 50 (the current default that tested well previously), 100 (to show something on the larger side, which previous tests showed was not a good tradeoff), and 10 (the very old default, which previous tests showed was worse than 50). Here are the numbers for linux.git: depth \| size \| % \| rev-list \| % \| log -Sfoo \| % -------+-------+-------+----------+--------+-----------+------- 250 \| 967MB \| n/a \| 48.159s \| n/a \| 378.088 \| n/a 100 \| 971MB \| +0.4% \| 41.471s \| -13.9% \| 342.060 \| -9.5% 50 \| 979MB \| +1.2% \| 37.778s \| -21.6% \| 311.040s \| -17.7% 10 \| 1.1GB \| +6.6% \| 32.518s \| -32.5% \| 279.890s \| -25.9% and for git.git: depth \| size \| % \| rev-list \| % \| log -Sfoo \| % -------+-------+-------+----------+--------+-----------+------- 250 \| 48MB \| n/a \| 2.215s \| n/a \| 20.922s \| n/a 100 \| 49MB \| +0.5% \| 2.140s \| -3.4% \| 17.736s \| -15.2% 50 \| 49MB \| +1.7% \| 2.099s \| -5.2% \| 15.418s \| -26.3% 10 \| 53MB \| +9.3% \| 2.001s \| -9.7% \| 12.677s \| -39.4% You can see that that the CPU savings for regular operations improves as we decrease the depth. The savings are less for "rev-list" on a smaller repository than they are for blob-accessing operations, or even rev-list on a larger repository. This may mean that a larger delta cache would help (though setting core.deltaBaseCacheLimit by itself doesn't). But we can also see that the space savings are not that great as the depth goes higher. Saving 5-10% between 10 and 50 is probably worth the CPU tradeoff. Saving 1% to go from 50 to 100, or another 0.5% to go from 100 to 250 is probably not. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Josh Triplett	6bc6b6c0dc	format-patch: format.from gives the default for --from This helps users who would prefer format-patch to default to --from, and makes it easier to change the default in the future. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	83558686ce	receive-pack: send keepalives during quiet periods After a client has sent us the complete pack, we may spend some time processing the data and running hooks. If the client asked us to be quiet, receive-pack won't send any progress data during the index-pack or connectivity-check steps. And hooks may or may not produce their own progress output. In these cases, the network connection is totally silent from both ends. Git itself doesn't care about this (it will wait forever), but other parts of the system (e.g., firewalls, load-balancers, etc) might hang up the connection. So we'd like to send some sort of keepalive to let the network and the client side know that we're still alive and processing. We can use the same trick we did in `05e9515` (upload-pack: send keepalive packets during pack computation, 2013-09-08). Namely, we will send an empty sideband data packet every `N` seconds that we do not relay any stderr data over the sideband channel. As with `05e9515`, this means that we won't bother sending keepalives when there's actual progress data, but will kick in when it has been disabled (or if there is a lull in the progress data). The concept is simple, but the details are subtle enough that they need discussing here. Before the client sends us the pack, we don't want to do any keepalives. We'll have sent our ref advertisement, and we're waiting for them to send us the pack (and tell us that they support sidebands at all). While we're receiving the pack from the client (or waiting for it to start), there's no need for keepalives; it's up to them to keep the connection active by sending data. Moreover, it would be wrong for us to do so. When we are the server in the smart-http protocol, we must treat our connection as half-duplex. So any keepalives we send while receiving the pack would potentially be buffered by the webserver. Not only does this make them useless (since they would not be delivered in a timely manner), but it could actually cause a deadlock if we fill up the buffer with keepalives. (It wouldn't be wrong to send keepalives in this phase for a full-duplex connection like ssh; it's simply pointless, as it is the client's responsibility to speak). As soon as we've gotten all of the pack data, then the client is waiting for us to speak, and we should start keepalives immediately. From here until the end of the connection, we send one any time we are not otherwise sending data. But there's a catch. Receive-pack doesn't know the moment we've gotten all the data. It passes the descriptor to index-pack, who reads all of the data, and then starts resolving the deltas. We have to communicate that back. To make this work, we instruct the sideband muxer to enable keepalives in three phases: 1. In the beginning, not at all. 2. While reading from index-pack, wait for a signal indicating end-of-input, and then start them. 3. Afterwards, always. The signal from index-pack in phase 2 has to come over the stderr channel which the muxer is reading. We can't use an extra pipe because the portable run-command interface only gives us stderr and stdout. Stdout is already used to pass the .keep filename back to receive-pack. We could also send a signal there, but then we would find out about it in the main thread. And the keepalive needs to be done by the async muxer thread (since it's the one writing sideband data back to the client). And we can't reliably signal the async thread from the main thread, because the async code sometimes uses threads and sometimes uses forked processes. Therefore the signal must come over the stderr channel, where it may be interspersed with other random human-readable messages from index-pack. This patch makes the signal a single NUL byte. This is easy to parse, should not appear in any normal stderr output, and we don't have to worry about any timing issues (like seeing half the signal bytes in one read(), and half in a subsequent one). This is a bit ugly, but it's simple to code and should work reliably. Another option would be to stop using an async thread for muxing entirely, and just poll() both stderr and stdout of index-pack from the main thread. This would work for index-pack (because we aren't doing anything useful in the main thread while it runs anyway). But it would make the connectivity check and the hook muxers much more complicated, as they need to simultaneously feed the sub-programs while reading their stderr. The index-pack phase is the only one that needs this signaling, so it could simply behave differently than the other two. That would mean having two separate implementations of copy_to_sideband (and the keepalive code), though. And it still doesn't get rid of the signaling; it just means we can write a nicer message like "END_OF_INPUT" or something on stdout, since we don't have to worry about separating it from the stderr cruft. One final note: this signaling trick is only done with index-pack, not with unpack-objects. There's no point in doing it for the latter, because by definition it only kicks in for a small number of objects, where keepalives are not as useful (and this conveniently lets us avoid duplicating the implementation). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Stefan Beller	c714e45f87	receive-pack: implement advertising and receiving push options The pre/post receive hook may be interested in more information from the user. This information can be transmitted when both client and server support the "push-options" capability, which when used is a phase directly after update commands ended by a flush pkt. Similar to the atomic option, the server capability can be disabled via the `receive.advertisePushOptions` config variable. While documenting this, fix a nit in the `receive.advertiseAtomic` wording. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Nguyễn Thái Ngọc Duy	3c8ede3ff3	connect: read $GIT_SSH_COMMAND from config file Similar to $GIT_ASKPASS or $GIT_PROXY_COMMAND, we also read from config file first then fall back to $GIT_SSH_COMMAND. This is useful for selecting different private keys targetting the same host (e.g. github) Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Torsten Bögershausen	6523728499	convert: unify the "auto" handling of CRLF Before this change, $ echo "* text=auto" >.gitattributes $ echo "* eol=crlf" >>.gitattributes would have the same effect as $ echo "* text" >.gitattributes $ git config core.eol crlf Since the 'eol' attribute had higher priority than 'text=auto', this may corrupt binary files and is not what most users expect to happen. Make the 'eol' attribute to obey 'text=auto' and now $ echo "* text=auto" >.gitattributes $ echo "* eol=crlf" >>.gitattributes behaves the same as $ echo "* text=auto" >.gitattributes $ git config core.eol crlf In other words, $ echo "* text=auto eol=crlf" >.gitattributes has the same effect as $ git config core.autocrlf true and $ echo "* text=auto eol=lf" >.gitattributes has the same effect as $ git config core.autocrlf input Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Nguyễn Thái Ngọc Duy	bc437d1020	fetch: reduce duplicate in ref update status lines with placeholder In the "remote -> local" line, if either ref is a substring of the other, the common part in the other string is replaced with "". For example abc -> origin/abc refs/pull/123/head -> pull/123 become abc -> origin/ refs//head -> pull/123 Activated with fetch.output=compact. For the record, this output is not perfect. A single giant ref can push all refs very far to the right and likely be wrapped around. We may have a few options: - exclude these long lines smarter - break the line after "->", exclude it from column width calculation - implement a new format, { -> origin/}foo, which makes the problem go away at the cost of a bit harder to read - reverse all the arrows so we have " <- looong-ref", again still hard to read. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Matthieu Moy	bcf9626a71	doc: typeset long command-line options as literal Similarly to the previous commit, use backquotes instead of forward-quotes, for long options. This was obtained with: perl -pi -e "s/'(--[a-z][a-z=<>-])'/\`\$1\`/g" .txt and manual tweak to remove false positive in ascii-art (o'--o'--o' to describe rewritten history). Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Matthieu Moy	23f8239bbe	doc: typeset short command-line options as literal It was common in our documentation to surround short option names with forward quotes, which renders as italic in HTML. Instead, use backquotes which renders as monospace. This is one more step toward conformance to Documentation/CodingGuidelines. This was obtained with: perl -pi -e "s/'(-[a-z])'/\`\$1\`/g" *.txt Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	9dc3515cf0	color: support strike-through attribute This is the only remaining attribute that is commonly supported (at least by xterm) that we don't support. Let's add it for completeness. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	54590a0eda	color: support "italic" attribute We already support bold, underline, and similar attributes. Let's add italic to the mix. According to the Wikipedia page on ANSI colors, this attribute is "not widely supported", but it does seem to work on my xterm. We don't have to bump the maximum color size because we were already over-allocating it (but we do adjust the comment appropriately). Requested-by: Simon Courtois <scourtois@cubyx.fr> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	5621068f3d	color: allow "no-" for negating attributes Using "no-bold" rather than "nobold" is easier to read and more natural to type (to me, anyway, even though I was the person who introduced "nobold" in the first place). It's easy to allow both. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	adb3356664	doc: refactor description of color format This is a general cleanup of the description of colors in git-config, mostly to address inaccuracies and confusion that had grown over time: - you can have many attributes, not just one - the discussion flip-flopped between colors and attributes; now we discuss everything about colors, then everything about attributes - many concepts were lumped into the first paragraph, making it hard to read, and especially to find the actual lists of colors and attributes. I stopped short of breaking those out into their own lists, as it seemed like an excessive use of vertical screen real estate. - we introduced negated attributes, but then the next paragraph basically explains how each item starts off with no attributes. So why would one need negated attributes? We now explain. - minor typo, language, and typography fixes Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Tom Russello	ae9f6311e9	doc: change configuration variables format This change configuration variables that where in italic style to monospace font according to the guideline. It was obtained with grep '[[:alpha:]]\.[[:alpha:]]::$' config.txt \| \ sed -e 's/::$//' -e 's/\./\\\\./' \| \ xargs -iP perl -pi -e "s/\'P\'/\`P\`/g" ./*.txt Signed-off-by: Tom Russello <tom.russello@grenoble-inp.org> Signed-off-by: Erwan Mathoniere <erwan.mathoniere@grenoble-inp.org> Signed-off-by: Samuel Groot <samuel.groot@grenoble-inp.org> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Tom Russello	47d81b5c7a	doc: more consistency in environment variables format Wrap with backticks (monospaced font) unwrapped or single-quotes wrapped (italic type) environment variables which are followed by the word "environment". It was obtained with: perl -pi -e "s/\'?(\\\$?[0-9A-Z\_]+)\'?(?= environment ?)/\`\1\`/g" *.txt One of the main purposes is to stick to the CodingGuidelines as possible so that people writting new documentation by mimicking the existing are more likely to have it right (even if they didn't read the CodingGuidelines). Signed-off-by: Tom Russello <tom.russello@grenoble-inp.org> Signed-off-by: Erwan Mathoniere <erwan.mathoniere@grenoble-inp.org> Signed-off-by: Samuel Groot <samuel.groot@grenoble-inp.org> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Tom Russello	eee7f4a233	doc: change environment variables format This change GIT_* variables that where in italic style to monospaced font according to the guideline. It was obtained with perl -pi -e "s/\'(GIT_.?)\'/\`\1\`/g" .txt One of the main purposes is to stick to the CodingGuidelines as possible so that people writting new documentation by mimicking the existing are more likely to have it right (even if they didn't read the CodingGuidelines). Signed-off-by: Tom Russello <tom.russello@grenoble-inp.org> Signed-off-by: Erwan Mathoniere <erwan.mathoniere@grenoble-inp.org> Signed-off-by: Samuel Groot <samuel.groot@grenoble-inp.org> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	20b20a22f8	upload-pack: provide a hook for running pack-objects When upload-pack serves a client request, it turns to pack-objects to do the heavy lifting of creating a packfile. There's no easy way to intercept the call to pack-objects, but there are a few good reasons to want to do so: 1. If you're debugging a client or server issue with fetching, you may want to store a copy of the generated packfile. 2. If you're gathering data from real-world fetches for performance analysis or debugging, storing a copy of the arguments and stdin lets you replay the pack generation at your leisure. 3. You may want to insert a caching layer around pack-objects; it is the most CPU- and memory-intensive part of serving a fetch, and its output is a pure function[1] of its input, making it an ideal place to consolidate identical requests. This patch adds a simple "hook" interface to intercept calls to pack-objects. The new test demonstrates how it can be used for debugging (using it for caching is a straightforward extension; the tricky part is writing the actual caching layer). This hook is unlike the normal hook scripts found in the "hooks/" directory of a repository. Because we promise that upload-pack is safe to run in an untrusted repository, we cannot execute arbitrary code or commands found in the repository (neither in hooks/, nor in the config). So instead, this hook is triggered from a config variable that is explicitly ignored in the per-repo config. The config variable holds the actual shell command to run as the hook. Another approach would be to simply treat it as a boolean: "should I respect the upload-pack hooks in this repo?", and then run the script from "hooks/" as we usually do. However, that isn't as flexible; there's no way to run a hook approved by the site administrator (e.g., in "/etc/gitconfig") on a repository whose contents are not trusted. The approach taken by this patch is more fine-grained, if a little less conventional for git hooks (it does behave similar to other configured commands like diff.external, etc). [1] Pack-objects isn't _actually_ a pure function. Its output depends on the exact packing of the object database, and if multi-threading is used for delta compression, can even differ racily. But for the purposes of caching, that's OK; of the many possible outputs for a given input, it is sufficient only that we output one of them. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Ramsay Jones	462cbb415e	log: document the --decorate=auto option Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Eric Wong	d9545c7f46	fast-import: implement unpack limit With many incremental imports, small packs become highly inefficient due to the need to readdir scan and load many indices to locate even a single object. Frequent repacking and consolidation may be prohibitively expensive in terms of disk I/O, especially in large repositories where the initial packs were aggressively optimized and marked with .keep files. In those cases, users may be better served with loose objects and relying on "git gc --auto". This changes the default behavior of fast-import for small imports found in test cases, so adjustments to t9300 were necessary. Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Johannes Schindelin	f30afdabbf	mingw: introduce the 'core.hideDotFiles' setting On Unix (and Linux), files and directories whose names start with a dot are usually not shown by default. This convention is used by Git: the .git/ directory should be left alone by regular users, and only accessed through Git itself. On Windows, no such convention exists. Instead, there is an explicit flag to mark files or directories as hidden. In the early days, Git for Windows did not mark the .git/ directory (or for that matter, any file or directory whose name starts with a dot) hidden. This lead to quite a bit of confusion, and even loss of data. Consequently, Git for Windows introduced the core.hideDotFiles setting, with three possible values: true, false, and dotGitOnly, defaulting to marking only the .git/ directory as hidden. The rationale: users do not need to access .git/ directly, and indeed (as was demonstrated) should not really see that directory, either. However, not all dot files should be hidden by default, as e.g. Eclipse does not show them (and the user would therefore be unable to see, say, a .gitattributes file). In over five years since the last attempt to bring this patch into core Git, a slightly buggy version of this patch has served Git for Windows' users well: no single report indicated problems with the hidden .git/ directory, and the stream of problems caused by the previously non-hidden .git/ directory simply stopped. The bugs have been fixed during the process of getting this patch upstream. Note that there is a funny quirk we have to pay attention to when creating hidden files: we use Win32's _wopen() function which transmogrifies its arguments and hands off to Win32's CreateFile() function. That latter function errors out with ERROR_ACCESS_DENIED (the equivalent of EACCES) when the equivalent of the O_CREAT flag was passed and the file attributes (including the hidden flag) do not match an existing file's. And _wopen() accepts no parameter that would be transmogrified into said hidden flag. Therefore, we simply try again without O_CREAT. A slightly different method is required for our fopen()/freopen() function as we cannot even remove the implicit O_CREAT flag. Therefore, we briefly mark existing files as unhidden when opening them via fopen()/freopen(). The ERROR_ACCESS_DENIED error can also be triggered by opening a file that is marked as a system file (which is unlikely to be tracked in Git), and by trying to create a file that has just been deleted and is awaiting the last open handles to be released (which would be handled better by the "Try again?" logic, a story for a different patch series, though). In both cases, it does not matter much if we try again without the O_CREAT flag, read: it does not hurt, either. For details how ERROR_ACCESS_DENIED can be triggered, see https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858 Original-patch-by: Erik Faye-Lund <kusmabite@gmail.com> Initial-Test-By: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Pranit Bauva	aaab84203b	commit: add a commit.verbose config variable Add commit.verbose configuration variable as a convenience for those who always prefer --verbose. Add tests to check the behavior introduced by this commit and also to verify that behavior of status doesn't break because of this commit. Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Junio C Hamano	1cca17dfff	Documentation: fix linkgit references There are a handful of incorrect "linkgit:<page>[<section>]" instances in our documentation set. * Some have an extra colon after "linkgit:"; fix them by removing the extra colon; * Some refer to a page outside the Git suite, namely curl(1); fix them by using the `curl(1)` that already appears on the same page for the same purpose of referring the readers to its manual page. * Some spell the name of the page incorrectly, e.g. "rev-list" when they mean "git-rev-list"; fix them. * Some list the manual section incorrectly; fix them to make sure they match what is at the top of the target of the link. Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Brian Norris	f212dcc7d3	config: consistently format $variables in monospaced font We don't consistently use `backticks` for formatting shell variables. This patch improves the consistency on shell variables (and a few nearby mentions of "gpg" commands), though it still doesn't straighten out the use of "quotes." Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Ævar Arnfjörð Bjarmason	867ad08a26	hooks: allow customizing where the hook directory is Change the hardcoded lookup for .git/hooks/* to optionally lookup in $(git config core.hooksPath)/* instead. This is essentially a more intrusive version of the git-init ability to specify hooks on init time via init templates. The difference between that facility and this feature is that this can be set up after the fact via e.g. ~/.gitconfig or /etc/gitconfig to apply for all your personal repositories, or all repositories on the system. I plan on using this on a centralized Git server where users can create arbitrary repositories under /gitroot, but I'd like to manage all the hooks that should be run centrally via a unified dispatch mechanism. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Brian Norris	e5a39ad8e6	http: expand http.cookieFile as a path This should handle .gitconfig files that specify things like: [http] cookieFile = "~/.gitcookies" Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Brian Norris	06ea368bb1	Documentation: config: improve word ordering for http.cookieFile Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Junio C Hamano	dca83abde2	config: describe 'pathname' value type We have a dedicated section for various value-types used in the configuration variables already, because we needed to describe how booleans and scaled integers can be spelled, and the pathname type would fit there. Adjust the description of `include.path`, `core.excludesFile` and `commit.template` variables slightly to clarify that these variables are of this type. Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Eric Wong	9cea46cdda	pack-objects: warn on split packs disabling bitmaps It can be tempting for a server admin to want a stable set of long-lived packs for dumb clients; but also want to enable bitmaps to serve smart clients more quickly. Unfortunately, such a configuration is impossible; so at least warn users of this incompatibility since commit `21134714` (pack-objects: turn off bitmaps when we split packs, 2014-10-16). Tested the warning by inspecting the output of: make -C t t5310-pack-bitmaps.sh GIT_TEST_OPTS=-v Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Johannes Schindelin	8cb01e2fd3	http: support sending custom HTTP headers We introduce a way to send custom HTTP headers with all requests. This allows us, for example, to send an extra token from build agents for temporary access to private repositories. (This is the use case that triggered this patch.) This feature can be used like this: git -c http.extraheader='Secret: sssh!' fetch $URL $REF Note that `curl_easy_setopt(..., CURLOPT_HTTPHEADER, ...)` takes only a single list, overriding any previous call. This means we have to collect _all_ of the headers we want to use into a single list, and feed it to cURL in one shot. Since we already unconditionally set a "pragma" header when initializing the curl handles, we can add our new headers to that list. For callers which override the default header list (like probe_rpc), we provide `http_copy_default_headers()` so they can do the same trick. Big thanks to Jeff King and Junio Hamano for their outstanding help and patient reviews. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Xiaolong Ye	bb52995f3e	format-patch: introduce format.useAutoBase configuration This allows to record the base commit automatically, it is equivalent to set --base=auto in cmdline. The format.useAutoBase has lower priority than command line option, so if user set format.useAutoBase and pass the command line option in the meantime, base_commit will be the one passed to command line option. Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Torsten Bögershausen	70ad8c8d8c	convert: allow core.autocrlf=input and core.eol=crlf Even though the configuration parser errors out when core.autocrlf is set to 'input' when core.eol is set to 'crlf', there is no need to do so, because the core.autocrlf setting trumps core.eol. Allow all combinations of core.crlf and core.eol and document that core.autocrlf overrides core.eol. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Laurent Arnoud	61c2fe0c29	tag: add the option to force signing of annotated tags The `tag.forcesignannotated` configuration variable makes "git tag" that would implicitly create an annotated tag to instead create a signed tag. For example $ git tag -m "This is a message" tag-with-message $ git tag -F message-file tag-with-message would create a signed tag if the configuration variable is in effect. To override this from the command line, the user can explicitly ask for an annotated tag, like so: $ git tag -a -m "This is a message" tag-with-message $ git tag -a -F message-file tag-with-message Creation of a light-weight tag, i.e. $ git tag lightweight is not affected. Signed-off-by: Laurent Arnoud <laurent@spkdev.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Stefan Beller	a028a1930c	fetching submodules: respect `submodule.fetchJobs` config option This allows to configure fetching and updating in parallel without having the command line option. This moved the responsibility to determine how many parallel processes to start from builtin/fetch to submodule.c as we need a way to communicate "The user did not specify the number of parallel processes in the command line options" in the builtin fetch. The submodule code takes care of the precedence (CLI > config > default). Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	01143847db	add--interactive: allow custom diff highlighting programs The patch hunk selector of add--interactive knows how ask git for colorized diffs, and correlate them with the uncolored diffs we apply. But there's not any way for somebody who uses a diff-filter tool like contrib's diff-highlight to see their normal highlighting. This patch lets users define an arbitrary shell command to pipe the colorized diff through. The exact output shouldn't matter (since we just show the result to humans) as long as it is line-compatible with the original diff (so that hunk-splitting can split the colorized version, too). I left two minor issues with the new system that I don't think are worth fixing right now, but could be done later: 1. We only filter colorized diffs. Theoretically a user could want to filter a non-colorized diff, but I find it unlikely in practice. Users who are doing things like diff-highlighting are likely to want color, too. 2. add--interactive will re-colorize a diff which has been hand-edited, but it won't have run through the filter. Fixing this is conceptually easy (just pipe the diff through the filter), but practically hard to do without using tempfiles (it would need to feed data to and read the result from the filter without deadlocking; this raises portability questions with respect to Windows). I've punted on both issues for now, and if somebody really cares later, they can do a patch on top. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	24321375cd	credential: let empty credential specs reset helper list Sine the credential.helper key is a multi-valued config list, there's no way to "unset" a helper once it's been set. So if your system /etc/gitconfig sets one, you can never avoid running it, but only add your own helpers on top. Since an empty value for credential.helper is nonsensical (it would just try to run "git-credential-"), we can assume nobody is using it. Let's define it to reset the helper list, letting you override lower-priority instances which have come before. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Christoph Egger	aeff8a6121	http: implement public key pinning Add the http.pinnedpubkey configuration option for public key pinning. It allows any string supported by libcurl -- base64(sha256(pubkey)) or filename of the full public key. If cURL does not support pinning (is too old) output a warning to the user. Signed-off-by: Christoph Egger <christoph@christoph-egger.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
brian m. carlson	121061f67f	http: add option to try authentication without username Performing GSS-Negotiate authentication using Kerberos does not require specifying a username or password, since that information is already included in the ticket itself. However, libcurl refuses to perform authentication if it has not been provided with a username and password. Add an option, http.emptyAuth, that provides libcurl with an empty username and password to make it attempt authentication anyway. Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Dan Aloni	4d5c295696	ident: add user.useConfigOnly boolean for when ident shouldn't be guessed It used to be that: git config --global user.email "(none)" was a viable way for people to force themselves to set user.email in each repository. This was helpful for people with more than one email address, targeting different email addresses for different clones, as it barred git from creating a commit unless the user.email config was set in the per-repo config to the correct email address. A recent change, `19ce497c` (ident: keep a flag for bogus default_email, 2015-12-10), however, declared that an explicitly configured user.email is not bogus, no matter what its value is, so this hack no longer works. Provide the same functionality by adding a new configuration variable user.useConfigOnly; when this variable is set, the user must explicitly set user.email configuration. Signed-off-by: Junio C Hamano <gitster@pobox.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Dan Aloni <alonid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Jeff King	0d0bac67ce	transport: drop support for git-over-rsync The git-over-rsync protocol is inefficient and broken, and has been for a long time. It transfers way more objects than it needs (grabbing all of the remote's "objects/", regardless of which objects we need). It does its own ad-hoc parsing of loose and packed refs from the remote, but doesn't properly override packed refs with loose ones, leading to garbage results (e.g., expecting the other side to have an object pointed to by a stale packed-refs entry, or complaining that the other side has two copies of the refs[1]). This latter breakage means that nobody could have successfully pulled from a moderately active repository since `cd547b4` (fetch/push: readd rsync support, 2007-10-01). We never made an official deprecation notice in the release notes for git's rsync protocol, but the tutorial has marked it as such since `914328a` (Update tutorial., 2005-08-30). And on the mailing list as far back as Oct 2005, we can find Junio mentioning it as having "been deprecated for quite some time."[2,3,4]. So it was old news then; cogito had deprecated the transport in July of 2005[5] (though it did come back briefly when Linus broke git-http-pull!). Of course some people professed their love of rsync through 2006, but Linus clarified in his usual gentle manner[6]: > Thanks! This is why I still use rsync, even though > everybody and their mother tells me "Linus says rsync is > deprecated." No. You're using rsync because you're actively doing something _wrong_. The deprecation sentiment was reinforced in 2008, with a mention that cloning via rsync is broken (with no fix)[7]. Even the commit porting rsync over to C from shell (`cd547b4`) lists it as deprecated! So between the 10 years of informal warnings, and the fact that it has been severely broken since 2007, it's probably safe to simply remove it without further deprecation warnings. [1] http://article.gmane.org/gmane.comp.version-control.git/285101 [2] http://article.gmane.org/gmane.comp.version-control.git/10093 [3] http://article.gmane.org/gmane.comp.version-control.git/17734 [4] http://article.gmane.org/gmane.comp.version-control.git/18911 [5] http://article.gmane.org/gmane.comp.version-control.git/5617 [6] http://article.gmane.org/gmane.comp.version-control.git/19354 [7] http://article.gmane.org/gmane.comp.version-control.git/103635 Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Christian Couder	435ec090ec	config: add core.untrackedCache When we know that mtime on directory as given by the environment is usable for the purpose of untracked cache, we may want the untracked cache to be always used without any mtime test or kernel name check being performed. Also when we know that mtime is not usable for the purpose of untracked cache, for example because the repo is shared over a network file system, we may want the untracked-cache to be automatically removed from the index. Allow the user to express such preference by setting the 'core.untrackedCache' configuration variable, which can take 'keep', 'false', or 'true' and default to 'keep'. When read_index_from() is called, it now adds or removes the untracked cache in the index to respect the value of this variable. So it does nothing if the value is `keep` or if the variable is unset; it adds the untracked cache if the value is `true`; and it removes the cache if the value is `false`. `git update-index --[no-\|force-]untracked-cache` still adds the untracked cache to, or removes it, from the index, but this shows a warning if it goes against the value of core.untrackedCache, because the next time the index is read the untracked cache will be added or removed if the configuration is set to do so. Also `--untracked-cache` used to check that the underlying operating system and file system change `st_mtime` field of a directory if files are added or deleted in that directory. But because those tests take a long time, `--untracked-cache` no longer performs them. Instead, there is now `--test-untracked-cache` to perform the tests. This change makes `--untracked-cache` the same as `--force-untracked-cache`. This last change is backward incompatible and should be mentioned in the release notes. Helped-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> read-cache: Duy'sfixup Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Knut Franke	372370f167	http: use credential API to handle proxy authentication Currently, the only way to pass proxy credentials to curl is by including them in the proxy URL. Usually, this means they will end up on disk unencrypted, one way or another (by inclusion in ~/.gitconfig, shell profile or history). Since proxy authentication often uses a domain user, credentials can be security sensitive; therefore, a safer way of passing credentials is desirable. If the configured proxy contains a username but not a password, query the credential API for one. Also, make sure we approve/reject proxy credentials properly. For consistency reasons, add parsing of http_proxy/https_proxy/all_proxy environment variables, which would otherwise be evaluated as a fallback by curl. Without this, we would have different semantics for git configuration and environment variables. Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Helped-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Knut Franke <k.franke@science-computing.de> Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Knut Franke	ef976395e2	http: allow selection of proxy authentication method CURLAUTH_ANY does not work with proxies which answer unauthenticated requests with a 307 redirect to an error page instead of a 407 listing supported authentication methods. Therefore, allow the authentication method to be set using the environment variable GIT_HTTP_PROXY_AUTHMETHOD or configuration variables http.proxyAuthmethod and remote.<name>.proxyAuthmethod (in analogy to http.proxy and remote.<name>.proxy). The following values are supported: * anyauth (default) * basic * digest * negotiate * ntlm Signed-off-by: Knut Franke <k.franke@science-computing.de> Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Helped-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Johannes Schindelin	f5eb87b98d	pull: allow interactive rebase with --rebase=interactive A couple of years ago, I found the need to collaborate on topic branches that were rebased all the time, and I really needed to see what I was rebasing when pulling, so I introduced an interactively-rebasing pull. The way builtin pull works, this change also supports the value 'interactive' for the 'branch.<name>.rebase' config variable, which is a neat thing because users can now configure given branches for interactively-rebasing pulls without having to type out the complete `--rebase=interactive` option every time they pull. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Alexander Kuleshov	bc6bf2d764	format-patch: introduce format.outputDirectory configuration We can pass -o/--output-directory to the format-patch command to store patches in some place other than the working directory. This patch introduces format.outputDirectory configuration option for same purpose. The case of usage of this configuration option can be convenience to not pass every time -o/--output-directory if an user has pattern to store all patches in the /patches directory for example. The format.outputDirectory has lower priority than command line option, so if user will set format.outputDirectory and pass the command line option, a result will be stored in a directory that passed to command line option. Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Stephen P. Smith <ischis2@cox.net> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago
Thomas Gummerer	ecd9ba6177	builtin/grep: add grep.fallbackToNoIndex config Currently when git grep is used outside of a git repository without the --no-index option git simply dies. For convenience, add a grep.fallbackToNoIndex configuration variable. If set to true, git grep behaves like git grep --no-index if it is run outside of a git repository. It defaults to false, preserving the current behavior. Helped-by: Jeff King <peff@peff.net> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago

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