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2012-04-30remove superfluous newlines in error messagesPete Wyckoff
The error handling routines add a newline. Remove the duplicate ones in error messages. Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06Sync with 1.7.6.6Junio C Hamano
* maint-1.7.8: Git 1.7.6.6 imap-send: remove dead code
2012-02-06Sync with 1.7.6.6Junio C Hamano
* maint-1.7.7: Git 1.7.6.6 imap-send: remove dead code
2012-02-06imap-send: remove dead codeJeff King
The imap-send code was adapted from another project, and still contains many unused bits of code. One of these bits contains a type "struct string_list" which bears no resemblence to the "struct string_list" we use elsewhere in git. This causes the compiler to complain if git's string_list ever becomes part of cache.h. Let's just drop the dead code. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-22Merge branch 'jk/git-prompt'Junio C Hamano
* jk/git-prompt: contrib: add credential helper for OS X Keychain Makefile: OS X has /dev/tty Makefile: linux has /dev/tty credential: use git_prompt instead of git_getpass prompt: use git_terminal_prompt add generic terminal prompt function refactor git_getpass into generic prompt function move git_getpass to its own source file imap-send: don't check return value of git_getpass imap-send: avoid buffer overflow Conflicts: Makefile
2011-12-20Merge branch 'ab/enable-i18n'Junio C Hamano
* ab/enable-i18n: i18n: add infrastructure for translating Git with gettext Conflicts: Makefile
2011-12-13move git_getpass to its own source fileJeff King
This is currently in connect.c, but really has nothing to do with the git protocol itself. Let's make a new source file all about prompting the user, which will make it cleaner to refactor. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13imap-send: don't check return value of git_getpassJeff King
git_getpass will always die() if we weren't able to get input, so there's no point looking for NULL. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13imap-send: avoid buffer overflowJeff King
We format the password prompt in an 80-character static buffer. It contains the remote host and username, so it's unlikely to overflow (or be exploitable by a remote attacker), but there's no reason not to be careful and use a strbuf. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-06i18n: add infrastructure for translating Git with gettextÆvar Arnfjörð Bjarmason
Change the skeleton implementation of i18n in Git to one that can show localized strings to users for our C, Shell and Perl programs using either GNU libintl or the Solaris gettext implementation. This new internationalization support is enabled by default. If gettext isn't available, or if Git is compiled with NO_GETTEXT=YesPlease, Git falls back on its current behavior of showing interface messages in English. When using the autoconf script we'll auto-detect if the gettext libraries are installed and act appropriately. This change is somewhat large because as well as adding a C, Shell and Perl i18n interface we're adding a lot of tests for them, and for those tests to work we need a skeleton PO file to actually test translations. A minimal Icelandic translation is included for this purpose. Icelandic includes multi-byte characters which makes it easy to test various edge cases, and it's a language I happen to understand. The rest of the commit message goes into detail about various sub-parts of this commit. = Installation Gettext .mo files will be installed and looked for in the standard $(prefix)/share/locale path. GIT_TEXTDOMAINDIR can also be set to override that, but that's only intended to be used to test Git itself. = Perl Perl code that's to be localized should use the new Git::I18n module. It imports a __ function into the caller's package by default. Instead of using the high level Locale::TextDomain interface I've opted to use the low-level (equivalent to the C interface) Locale::Messages module, which Locale::TextDomain itself uses. Locale::TextDomain does a lot of redundant work we don't need, and some of it would potentially introduce bugs. It tries to set the $TEXTDOMAIN based on package of the caller, and has its own hardcoded paths where it'll search for messages. I found it easier just to completely avoid it rather than try to circumvent its behavior. In any case, this is an issue wholly internal Git::I18N. Its guts can be changed later if that's deemed necessary. See <AANLkTilYD_NyIZMyj9dHtVk-ylVBfvyxpCC7982LWnVd@mail.gmail.com> for a further elaboration on this topic. = Shell Shell code that's to be localized should use the git-sh-i18n library. It's basically just a wrapper for the system's gettext.sh. If gettext.sh isn't available we'll fall back on gettext(1) if it's available. The latter is available without the former on Solaris, which has its own non-GNU gettext implementation. We also need to emulate eval_gettext() there. If neither are present we'll use a dumb printf(1) fall-through wrapper. = About libcharset.h and langinfo.h We use libcharset to query the character set of the current locale if it's available. I.e. we'll use it instead of nl_langinfo if HAVE_LIBCHARSET_H is set. The GNU gettext manual recommends using langinfo.h's nl_langinfo(CODESET) to acquire the current character set, but on systems that have libcharset.h's locale_charset() using the latter is either saner, or the only option on those systems. GNU and Solaris have a nl_langinfo(CODESET), FreeBSD can use either, but MinGW and some others need to use libcharset.h's locale_charset() instead. =Credits This patch is based on work by Jeff Epler <jepler@unpythonic.net> who did the initial Makefile / C work, and a lot of comments from the Git mailing list, including Jonathan Nieder, Jakub Narebski, Johannes Sixt, Erik Faye-Lund, Peter Krefting, Junio C Hamano, Thomas Rast and others. [jc: squashed a small Makefile fix from Ramsay] Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23Merge branch 'maint' into tj/imap-send-remove-unusedJunio C Hamano
* maint: (18123 commits) documentation fix: git difftool uses diff tools, not merge tools. Git 1.7.7.4 Makefile: add missing header file dependencies notes merge: eliminate OUTPUT macro mailmap: xcalloc mailmap_info name-rev --all: do not even attempt to describe non-commit object Git 1.7.7.3 docs: Update install-doc-quick docs: don't mention --quiet or --exit-code in git-log(1) Git 1.7.7.2 t7511: avoid use of reserved filename on Windows. clone: Quote user supplied path in a single quote pair read-cache.c: fix index memory allocation make the sample pre-commit hook script reject names with newlines, too Reindent closing bracket using tab instead of spaces Git 1.7.7.1 RelNotes/1.7.7.1: setgid bit patch is about fixing "git init" via Makefile setting gitweb: fix regression when filtering out forks Almost ready for 1.7.7.1 pack-objects: don't traverse objects unnecessarily ... Conflicts: imap-send.c
2011-11-23imap-send: Remove unused 'use_namespace' variableThomas Jarosch
Reported by cppcheck Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-11sparse: Fix some "Using plain integer as NULL pointer" warningsRamsay Jones
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-22Fix sparse warningsStephen Boyd
Fix warnings from 'make check'. - These files don't include 'builtin.h' causing sparse to complain that cmd_* isn't declared: builtin/clone.c:364, builtin/fetch-pack.c:797, builtin/fmt-merge-msg.c:34, builtin/hash-object.c:78, builtin/merge-index.c:69, builtin/merge-recursive.c:22 builtin/merge-tree.c:341, builtin/mktag.c:156, builtin/notes.c:426 builtin/notes.c:822, builtin/pack-redundant.c:596, builtin/pack-refs.c:10, builtin/patch-id.c:60, builtin/patch-id.c:149, builtin/remote.c:1512, builtin/remote-ext.c:240, builtin/remote-fd.c:53, builtin/reset.c:236, builtin/send-pack.c:384, builtin/unpack-file.c:25, builtin/var.c:75 - These files have symbols which should be marked static since they're only file scope: submodule.c:12, diff.c:631, replace_object.c:92, submodule.c:13, submodule.c:14, trace.c:78, transport.c:195, transport-helper.c:79, unpack-trees.c:19, url.c:3, url.c:18, url.c:104, url.c:117, url.c:123, url.c:129, url.c:136, thread-utils.c:21, thread-utils.c:48 - These files redeclare symbols to be different types: builtin/index-pack.c:210, parse-options.c:564, parse-options.c:571, usage.c:49, usage.c:58, usage.c:63, usage.c:72 - These files use a literal integer 0 when they really should use a NULL pointer: daemon.c:663, fast-import.c:2942, imap-send.c:1072, notes-merge.c:362 While we're in the area, clean up some unused #includes in builtin files (mostly exec_cmd.h). Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09imap-send: Fix sprintf usageÆvar Arnfjörð Bjarmason
When composing a command for the imap server, imap-send uses a single nfsnprintf() invocation for brevity instead of dealing separately with the case when there is a message to be sent and the case when there isn’t. The unused argument in the second case, while valid, is confusing for static analyzers and human readers. v1.6.4-rc0~117 (imap-send: add support for IPv6, 2009-05-25) mistakenly used %hu as the format for an int “port”, by analogy with existing usage for the unsigned short “addr.sin_port”.  Use %d instead. Noticed with clang. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-31enums: omit trailing comma for portabilityGary V. Vaughan
Without this patch at least IBM VisualAge C 5.0 (I have 5.0.2) on AIX 5.1 fails to compile git. enum style is inconsistent already, with some enums declared on one line, some over 3 lines with the enum values all on the middle line, sometimes with 1 enum value per line... and independently of that the trailing comma is sometimes present and other times absent, often mixing with/without trailing comma styles in a single file, and sometimes in consecutive enum declarations. Clearly, omitting the comma is the more portable style, and this patch changes all enum declarations to use the portable omitted dangling comma style consistently. Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-03Merge branch 'rr/imap-send-unconfuse-from-line'Junio C Hamano
* rr/imap-send-unconfuse-from-line: imap-send: Remove limitation on message body
2010-03-28imap-send: suppress warning about cleartext password with CRAM-MD5Chris Webb
If a CRAM-MD5 challenge-response is used to authenticate to the IMAP server, git imap-send shouldn't warn about the password being sent in the clear. Signed-off-by: Chris Webb <chris@arachsys.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-24imap-send: Remove limitation on message bodyRamkumar Ramachandra
There is a documented limitation on the body of any email not being able to contain lines starting with "From ". This patch removes that limitation by improving the parser to search for "From", "Date", and "Subject" fields in the email before considering it to be an email. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-20Merge branch 'fl/askpass'Junio C Hamano
* fl/askpass: git-core: Support retrieving passwords with GIT_ASKPASS git-svn: Support retrieving passwords with GIT_ASKPASS
2010-03-05git-core: Support retrieving passwords with GIT_ASKPASSFrank Li
git tries to read a password from the terminal in imap-send and when talking to a http server that requires authentication. When a GUI is driving git, however, the end user is not paying attention to the terminal (there may not even be a terminal). GUI would appear to hang forever. Fix this problem by allowing a password-retrieving command to be specified in GIT_ASKPASS Signed-off-by: Frank Li <lznuaa@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-03Merge branch 'hm/maint-imap-send-crlf' into maintJunio C Hamano
* hm/maint-imap-send-crlf: git-imap-send: Convert LF to CRLF before storing patch to draft box
2010-03-02Merge branch 'hm/imap-send-cram-md5'Junio C Hamano
* hm/imap-send-cram-md5: imap-send: support CRAM-MD5 authentication
2010-02-21Merge branch 'hm/maint-imap-send-crlf'Junio C Hamano
* hm/maint-imap-send-crlf: git-imap-send: Convert LF to CRLF before storing patch to draft box
2010-02-17imap-send: support CRAM-MD5 authenticationHitoshi Mitake
CRAM-MD5 authentication ought to be independent from SSL, but NO_OPENSSL build will not support this because the base64 and md5 code are used from the OpenSSL library in this implementation. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-12git-imap-send: Convert LF to CRLF before storing patch to draft boxHitoshi Mitake
When storing a message over IMAP (RFC 3501 6.3.11), the message should be in the format of an RFC 2822 message; most notably, CRLF must be used as a line terminator. Convert "\n" line endings in the payload to CRLF before feeding it to IMAP APPEND command. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-09Merge branch 'maint'Junio C Hamano
* maint: blame: prevent a segv when -L given start > EOF git-push: document all the status flags used in the output Fix parsing of imap.preformattedHTML and imap.sslverify git-add documentation: Fix shell quoting example
2010-02-08Merge branch 'jc/maint-imap-config-parse' into maintJunio C Hamano
* jc/maint-imap-config-parse: Fix parsing of imap.preformattedHTML and imap.sslverify
2010-02-08Fix parsing of imap.preformattedHTML and imap.sslverifyJunio C Hamano
These two variables are boolean and can lack "= value" in the configuration file. Do not reject such input early in the parser callback function. Also the key are downcased before being given to the callback, so we should run strcmp() with keyword spelled in all-lowercase. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-06run-command: convert simple callsites to use_shellJeff King
Now that we have the use_shell feature, these callsites can all be converted with small changes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-23Merge branch 'tc/format-attribute'Junio C Hamano
* tc/format-attribute: Check the format of more printf-type functions
2009-11-21Merge branch 'jn/help-everywhere'Junio C Hamano
* jn/help-everywhere: (23 commits) diff --no-index: make the usage string less scary merge-{recursive,subtree}: use usagef() to print usage Introduce usagef() that takes a printf-style format Let 'git <command> -h' show usage without a git dir Show usage string for 'git http-push -h' Let 'git http-fetch -h' show usage outside any git repository Show usage string for 'git stripspace -h' Show usage string for 'git unpack-file -h' Show usage string for 'git show-index -h' Show usage string for 'git rev-parse -h' Show usage string for 'git merge-one-file -h' Show usage string for 'git mailsplit -h' Show usage string for 'git imap-send -h' Show usage string for 'git get-tar-commit-id -h' Show usage string for 'git fast-import -h' Show usage string for 'git check-ref-format -h' http-fetch: add missing initialization of argv0_path Show usage string for 'git show-ref -h' Show usage string for 'git merge-ours -h' Show usage string for 'git commit-tree -h' ... Conflicts: imap-send.c
2009-11-18Merge branch 'ef/msys-imap'Junio C Hamano
* ef/msys-imap: Windows: use BLK_SHA1 again MSVC: Enable OpenSSL, and translate -lcrypto mingw: enable OpenSSL mingw: wrap SSL_set_(w|r)fd to call _get_osfhandle imap-send: build imap-send on Windows imap-send: fix compilation-error on Windows imap-send: use run-command API for tunneling imap-send: use separate read and write fds imap-send: remove useless uid code
2009-11-16Check the format of more printf-type functionsTarmigan Casebolt
We already have these checks in many printf-type functions that have prototypes which are in header files. Add these same checks to some more prototypes in header functions and to static functions in .c files. cc: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Tarmigan Casebolt <tarmigan+git@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10Show usage string for 'git imap-send -h'Jonathan Nieder
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31imap-send.c: fix compiler warnings for OpenSSL 1.0Vietor Liu
The openssl/CHANGES file says: Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD pointer and make the SSL_METHOD parameter in SSL_CTX_new, SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. In older versions, unqualified pointers were used, so we unfortunately cannot unconditionally update the type of the variable we use. Signed-off-by: Vietor Liu <vietor@vxwo.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-20imap-send: fix compilation-error on WindowsErik Faye-Lund
mmsystem.h (included from windows.h) defines DRV_OK to 1. To avoid an error due to DRV_OK redefenition, this patch undefines the old definition (i.e the one from mmsystem.h) before defining DRV_OK. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-20imap-send: use run-command API for tunnelingErik Faye-Lund
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-20imap-send: use separate read and write fdsErik Faye-Lund
This is a patch that enables us to use the run-command API, which is supported on Windows. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-20imap-send: remove useless uid codeJeff King
The imap-send code is based on code from isync, a program for syncing imap mailboxes. Because of this, it has inherited some code that makes sense for isync, but not for imap-send. In particular, when storing a message, it does one of: - if the server supports it, note the server-assigned unique identifier (UID) given to each message - otherwise, assigned a random UID and store it in the message header as X-TUID Presumably this is used in isync to be able to synchronize mailstores multiple times without duplication. But for imap-send, the values are useless; we never do anything with them and simply forget them at the end of the program. This patch removes the useless code. Not only is it nice for maintainability to get rid of dead code, but the removed code relied on the existence of /dev/urandom, which made it a portability problem for non-Unix platforms. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-21Fix various sparse warnings in the git source codeLinus Torvalds
There are a few remaining ones, but this fixes the trivial ones. It boils down to two main issues that sparse complains about: - warning: Using plain integer as NULL pointer Sparse doesn't like you using '0' instead of 'NULL'. For various good reasons, not the least of which is just the visual confusion. A NULL pointer is not an integer, and that whole "0 works as NULL" is a historical accident and not very pretty. A few of these remain: zlib is a total mess, and Z_NULL is just a 0. I didn't touch those. - warning: symbol 'xyz' was not declared. Should it be static? Sparse wants to see declarations for any functions you export. A lack of a declaration tends to mean that you should either add one, or you should mark the function 'static' to show that it's in file scope. A few of these remain: I only did the ones that should obviously just be made static. That 'wt_status_submodule_summary' one is debatable. It has a few related flags (like 'wt_status_use_color') which _are_ declared, and are used by builtin-commit.c. So maybe we'd like to export it at some point, but it's not declared now, and not used outside of that file, so 'static' it is in this patch. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-27imap-send: add support for IPv6Benjamin Kramer
Add IPv6 support by implementing name resolution with the protocol agnostic getaddrinfo(3) API. The old gethostbyname(3) code is still available when git is compiled with NO_IPV6. Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-14Remove unused assignmentsBenjamin Kramer
These variables were always overwritten or the assigned value was unused: builtin-diff-tree.c::cmd_diff_tree(): nr_sha1 builtin-for-each-ref.c::opt_parse_sort(): sort_tail builtin-mailinfo.c::decode_header_bq(): in builtin-shortlog.c::insert_one_record(): len connect.c::git_connect(): path imap-send.c::v_issue_imap_cmd(): n pretty.c::pp_user_info(): filler remote::parse_refspec_internal(): llen Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-15imap.preformattedHTML to tell Thunderbird to send non-flowed textJeremy White
Many e-mail based development communities require non-flowed text to carry patches to prevent whitespaces from getting mangled, but there is no easy way to tell Thunderbird MUA not to use format=flowed, unless you configure it to do so unconditionally for all outgoing mails. A workaround for users who use git-imap-send is to wrap the patch in "pre" element in the draft folder as an HTML message, and tell Thunderbird to send "text only". Thunderbird turns such a message into a non-flowed plain text when sending it out, which is what we want for patch e-mails. Signed-off-by: Jeremy White <jwhite@codeweavers.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-26Add calls to git_extract_argv0_path() in programs that call git_config_*Steffen Prohaska
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>
2009-01-05remove trailing LF in die() messagesAlexander Potashev
LF at the end of format strings given to die() is redundant because die already adds one on its own. Signed-off-by: Alexander Potashev <aspotashev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerBrandon Casey
Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-07-26imap-send.c: more style fixesJunio C Hamano
The previous one sqeezed unnecessary whitespaces and joined function type and name in the definition split across lines. This patch further fixes many remaining style issues: - We are not particularly fond of typedef to hide the underlying struct definitions. - Asterisk comes next variable, i.e. "type *var", not "type * var" nor "type* var". - Casting to pointer to a type is "(type *)", not "(type*)". - An open brace comes on the same line as closing parenthesis of "if (...)" condition; "else" comes on the same line as closing brace of its corresponding "if (...) {". - Avoid single liner "if (...) <stmt>;"; they should be on two separate lines. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-26imap-send.c: style fixesRobert Shearman
Signed-off-by: Robert Shearman <robertshearman@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-26git-imap-send: Support SSLRobert Shearman
Allow SSL to be used when a imaps:// URL is used for the host name. Also, automatically use TLS when not using imaps:// by using the IMAP STARTTLS command, if the server supports it. Tested with Courier and Gimap IMAP servers. Signed-off-by: Robert Shearman <robertshearman@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>