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2014-03-18Merge branch 'rm/strchrnul-not-strlen'Libravatar Junio C Hamano1-3/+2
* rm/strchrnul-not-strlen: use strchrnul() in place of strchr() and strlen()
2014-03-14Merge branch 'jk/commit-dates-parsing-fix'Libravatar Junio C Hamano1-3/+9
Tighten codepaths that parse timestamps in commit objects. * jk/commit-dates-parsing-fix: show_ident_date: fix tz range check log: do not segfault on gmtime errors log: handle integer overflow in timestamps date: check date overflow against time_t fsck: report integer overflow in author timestamps t4212: test bogus timestamps with git-log
2014-03-10use strchrnul() in place of strchr() and strlen()Libravatar Rohit Mani1-3/+2
Avoid scanning strings twice, once with strchr() and then with strlen(), by using strchrnul(). Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Rohit Mani <rohit.mani@outlook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-07show_ident_date: fix tz range checkLibravatar Jeff King1-2/+2
Commit 1dca155fe3fa (log: handle integer overflow in timestamps, 2014-02-24) tried to catch integer overflow coming from strtol() on the timezone field by comparing against LONG_MIN/LONG_MAX. However, the intermediate "tz" variable is an "int", which means it can never be LONG_MAX on LP64 systems; we would truncate the output from strtol before the comparison. Clang's -Wtautological-constant-out-of-range-compare notices this and rightly complains. Let's instead store the result of strtol in a long, and then compare it against INT_MIN/INT_MAX. This will catch overflow from strtol, and also overflow when we pass the result as an int to show_date. Reported-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-24log: handle integer overflow in timestampsLibravatar Jeff King1-2/+8
If an ident line has a ridiculous date value like (2^64)+1, we currently just pass ULONG_MAX along to the date code, which can produce nonsensical dates. On systems with a signed long time_t (e.g., 64-bit glibc systems), this actually doesn't end up too bad. The ULONG_MAX is converted to -1, we apply the timezone field to that, and the result ends up somewhere between Dec 31, 1969 and Jan 1, 1970. However, there is still a few good reasons to detect the overflow explicitly: 1. On systems where "unsigned long" is smaller than time_t, we get a nonsensical date in the future. 2. Even where it would produce "Dec 31, 1969", it's easier to recognize "midnight Jan 1" as a consistent sentinel value for "we could not parse this". 3. Values which do not overflow strtoul but do overflow a signed time_t produce nonsensical values in the past. For example, on a 64-bit system with a signed long time_t, a timestamp of 18446744073000000000 produces a date in 1947. We also recognize overflow in the timezone field, which could produce nonsensical results. In this case we show the parsed date, but in UTC. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-05replace {pre,suf}fixcmp() with {starts,ends}_with()Libravatar Christian Couder1-18/+18
Leaving only the function definitions and declarations so that any new topic in flight can still make use of the old functions, replace existing uses of the prefixcmp() and suffixcmp() with new API functions. The change can be recreated by mechanically applying this: $ git grep -l -e prefixcmp -e suffixcmp -- \*.c | grep -v strbuf\\.c | xargs perl -pi -e ' s|!prefixcmp\(|starts_with\(|g; s|prefixcmp\(|!starts_with\(|g; s|!suffixcmp\(|ends_with\(|g; s|suffixcmp\(|!ends_with\(|g; ' on the result of preparatory changes in this series. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-31pretty: trivial style fixLibravatar Felipe Contreras1-1/+1
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-20format-patch: print in-body "From" only when neededLibravatar Jeff King1-1/+1
Commit a908047 taught format-patch the "--from" option, which places the author ident into an in-body from header, and uses the committer ident in the rfc822 from header. The documentation claims that it will omit the in-body header when it is the same as the rfc822 header, but the code never implemented that behavior. This patch completes the feature by comparing the two idents and doing nothing when they are the same (this is the same as simply omitting the in-body header, as the two are by definition indistinguishable in this case). This makes it reasonable to turn on "--from" all the time (if it matches your particular workflow), rather than only using it when exporting other people's patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-03teach format-patch to place other authors into in-body "From"Libravatar Jeff King1-0/+38
Format-patch generates emails with the "From" address set to the author of each patch. If you are going to send the emails, however, you would want to replace the author identity with yours (if they are not the same), and bump the author identity to an in-body header. Normally this is handled by git-send-email, which does the transformation before sending out the emails. However, some workflows may not use send-email (e.g., imap-send, or a custom script which feeds the mbox to a non-git MUA). They could each implement this feature themselves, but getting it right is non-trivial (one must canonicalize the identities by reversing any RFC2047 encoding or RFC822 quoting of the headers, which has caused many bugs in send-email over the years). This patch takes a different approach: it teaches format-patch a "--from" option which handles the ident check and in-body header while it is writing out the email. It's much simpler to do at this level (because we haven't done any quoting yet), and any workflow based on format-patch can easily turn it on. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-03pretty.c: drop const-ness from pretty_print_contextLibravatar Jeff King1-5/+5
In the current code, callers are expected to fill in the pretty_print_context, and then the pretty.c functions simply read from it. This leaves no room for the pretty.c functions to communicate with each other by manipulating the context (e.g., data seen while printing the header may impact how we print the body). Rather than introduce a new struct to hold modifiable data, let's just drop the const-ness of the existing context struct. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-01Merge branch 'rs/pp-user-info-without-extra-allocation'Libravatar Junio C Hamano1-35/+14
* rs/pp-user-info-without-extra-allocation: pretty: remove intermediate strbufs from pp_user_info() pretty: simplify output line length calculation in pp_user_info() pretty: simplify input line length calculation in pp_user_info()
2013-04-25pretty: remove intermediate strbufs from pp_user_info()Libravatar René Scharfe1-20/+9
Use namebuf/namelen and mailbuf/maillen directly instead of copying their contents into strbufs first. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-25pretty: simplify output line length calculation in pp_user_info()Libravatar René Scharfe1-4/+3
Keep namelen unchanged and don't use it to hold a value that we're not interested in anyway -- we can use maillen and the constant part directly instead. This simplifies the code slightly and prepares for the next patch that makes use of the original value of namelen. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-25pretty: simplify input line length calculation in pp_user_info()Libravatar René Scharfe1-11/+2
Instead of searching for LF and NUL with two strchr() calls use a single strchrnul() call. We don't need to check if the returned pointer is NULL because either we'll find the NUL at the end of line, or the caller forgot to NUL-terminate the string and we'll overrun the buffer in any case. Also we don't need to pass LF or NUL to split_ident_line() as it ignores it anyway. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-23Merge branch 'nd/pretty-formats'Libravatar Junio C Hamano1-62/+296
pretty-printing body of the commit that is stored in non UTF-8 encoding did not work well. The early part of this series fixes it. And then it adds %C(auto) specifier that turns the coloring on when we are emitting to the terminal, and adds column-aligning format directives. * nd/pretty-formats: pretty: support %>> that steal trailing spaces pretty: support truncating in %>, %< and %>< pretty: support padding placeholders, %< %> and %>< pretty: add %C(auto) for auto-coloring pretty: split color parsing into a separate function pretty: two phase conversion for non utf-8 commits utf8.c: add reencode_string_len() that can handle NULs in string utf8.c: add utf8_strnwidth() with the ability to skip ansi sequences utf8.c: move display_mode_esc_sequence_len() for use by other functions pretty: share code between format_decoration and show_decorations pretty-formats.txt: wrap long lines pretty: get the correct encoding for --pretty:format=%e pretty: save commit encoding from logmsg_reencode if the caller needs it
2013-04-22Merge branch 'jk/chopped-ident'Libravatar Junio C Hamano1-21/+24
A commit object whose author or committer ident are malformed crashed some code that trusted that a name, an email and an timestamp can always be found in it. * jk/chopped-ident: blame: handle broken commit headers gracefully pretty: handle broken commit headers gracefully cat-file: print tags raw for "cat-file -p"
2013-04-18pretty: support %>> that steal trailing spacesLibravatar Nguyễn Thái Ngọc Duy1-0/+34
This is pretty useful in `%<(100)%s%Cred%>(20)% an' where %s does not use up all 100 columns and %an needs more than 20 columns. By replacing %>(20) with %>>(20), %an can steal spaces from %s. %>> understands escape sequences, so %Cred does not stop it from stealing spaces in %<(100). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: support truncating in %>, %< and %><Libravatar Nguyễn Thái Ngọc Duy1-3/+48
%>(N,trunc) truncates the right part after N columns and replace the last two letters with "..". ltrunc does the same on the left. mtrunc cuts the middle out. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: support padding placeholders, %< %> and %><Libravatar Nguyễn Thái Ngọc Duy1-1/+116
Either %<, %> or %>< standing before a placeholder specifies how many columns (at least as the placeholder can exceed it) it takes. Each differs on how spaces are padded: %< pads on the right (aka left alignment) %> pads on the left (aka right alignment) %>< pads both ways equally (aka centered) The (<N>) follows them, e.g. `%<(100)', to specify the number of columns the next placeholder takes. However, if '|' stands before (<N>), e.g. `%>|(100)', then the number of columns is calculated so that it reaches the Nth column on screen. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: add %C(auto) for auto-coloringLibravatar Nguyễn Thái Ngọc Duy1-3/+23
This is not simply convenient over %C(auto,xxx). Some placeholders (actually only one, %d) do multi coloring and we can't emit a multiple colors with %C(auto,xxx). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: split color parsing into a separate functionLibravatar Nguyễn Thái Ngọc Duy1-32/+39
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: two phase conversion for non utf-8 commitsLibravatar Nguyễn Thái Ngọc Duy1-2/+22
Always assume format_commit_item() takes an utf-8 string for string handling simplicity (we can handle utf-8 strings, but can't with other encodings). If commit message is in non-utf8, or output encoding is not, then the commit is first converted to utf-8, processed, then output converted to output encoding. This of course only works with encodings that are compatible with Unicode. This also fixes the iso8859-1 test in t6006. It's supposed to create an iso8859-1 commit, but the commit content in t6006 is in UTF-8. t6006 is now converted back in UTF-8 (the downside is we can't put utf-8 strings there anymore). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: share code between format_decoration and show_decorationsLibravatar Nguyễn Thái Ngọc Duy1-18/+2
This also adds color support to format_decorations() Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: get the correct encoding for --pretty:format=%eLibravatar Nguyễn Thái Ngọc Duy1-6/+7
parse_commit_header() provides the commit encoding for '%e' and it reads it from the re-encoded message, which contains the new encoding, not the original one in the commit object. This never happens because --pretty=format:xxx never respects i18n.logoutputencoding. But that's a different story. Get the commit encoding from logmsg_reencode() instead. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-18pretty: save commit encoding from logmsg_reencode if the caller needs itLibravatar Nguyễn Thái Ngọc Duy1-4/+12
The commit encoding is parsed by logmsg_reencode, there's no need for the caller to re-parse it again. The reencoded message now has the new encoding, not the original one. The caller would need to read commit object again before parsing. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17pretty: handle broken commit headers gracefullyLibravatar René Scharfe1-21/+24
Centralize the parsing of the date and time zone strings in the new helper function show_ident_date() and make sure it checks the pointers provided by split_ident_line() for NULL before use. Reported-by: Ivan Lyapunov <dront78@gmail.com> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03Merge branch 'mg/gpg-interface-using-status' into maintLibravatar Junio C Hamano1-4/+15
Verification of signed tags were not done correctly when not in C or en/US locale. * mg/gpg-interface-using-status: pretty: make %GK output the signing key for signed commits pretty: parse the gpg status lines rather than the output gpg_interface: allow to request status return log-tree: rely upon the check in the gpg_interface gpg-interface: check good signature in a reliable way
2013-04-03Merge branch 'ks/rfc2047-one-char-at-a-time' into maintLibravatar Junio C Hamano1-12/+22
When "format-patch" quoted a non-ascii strings on the header files, it incorrectly applied rfc2047 and chopped a single character in the middle of it. * ks/rfc2047-one-char-at-a-time: format-patch: RFC 2047 says multi-octet character may not be split
2013-03-31pretty printing: extend %G? to include 'N' and 'U'Libravatar Sebastian Götte1-0/+2
Expand %G? in pretty format strings to 'N' in case of no GPG signature and 'U' in case of a good but untrusted GPG signature in addition to the previous 'G'ood and 'B'ad. This eases writing anyting parsing git-log output. Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31Move commit GPG signature verification to commit.cLibravatar Sebastian Götte1-78/+13
Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-25Merge branch 'ks/rfc2047-one-char-at-a-time'Libravatar Junio C Hamano1-12/+22
When "format-patch" quoted a non-ascii strings on the header files, it incorrectly applied rfc2047 and chopped a single character in the middle of it. * ks/rfc2047-one-char-at-a-time: format-patch: RFC 2047 says multi-octet character may not be split
2013-03-21Merge branch 'mg/gpg-interface-using-status'Libravatar Junio C Hamano1-4/+15
Call "gpg" using the right API when validating the signature on tags. * mg/gpg-interface-using-status: pretty: make %GK output the signing key for signed commits pretty: parse the gpg status lines rather than the output gpg_interface: allow to request status return log-tree: rely upon the check in the gpg_interface gpg-interface: check good signature in a reliable way
2013-03-09format-patch: RFC 2047 says multi-octet character may not be splitLibravatar Kirill Smelkov1-12/+22
Even though an earlier attempt (bafc478..41dd00bad) cleaned up RFC 2047 encoding, pretty.c::add_rfc2047() still decides where to split the output line by going through the input one byte at a time, and potentially splits a character in the middle. A subject line may end up showing like this: ".... fö?? bar". (instead of ".... föö bar".) if split incorrectly. RFC 2047, section 5 (3) explicitly forbids such beaviour Each 'encoded-word' MUST represent an integral number of characters. A multi-octet character may not be split across adjacent 'encoded- word's. that means that e.g. for Subject: .... föö bar encoding Subject: =?UTF-8?q?....=20f=C3=B6=C3=B6?= =?UTF-8?q?=20bar?= is correct, and Subject: =?UTF-8?q?....=20f=C3=B6=C3?= <-- NOTE ö is broken here =?UTF-8?q?=B6=20bar?= is not, because "ö" character UTF-8 encoding C3 B6 is split here across adjacent encoded words. To fix the problem, make the loop grab one _character_ at a time and determine its output length to see where to break the output line. Note that this version only knows about UTF-8, but the logic to grab one character is abstracted out in mbs_chrlen() function to make it possible to extend it to other encodings with the help of iconv in the future. Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14pretty: make %GK output the signing key for signed commitsLibravatar Michael J Gruber1-1/+8
In order to employ signed keys in an automated way it is absolutely necessary to check which keys the signatures come from. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14pretty: parse the gpg status lines rather than the outputLibravatar Michael J Gruber1-5/+9
Currently, parse_signature_lines() parses the gpg output for strings which depend on LANG so it fails to recognize good commit signatures (and thus does not fill in %G? and the like) in most locales. Make it parse the status lines from gpg instead, which are the proper machine interface. This fixes the problem described above. There is a change in behavior for "%GS" which we intentionally do not work around: "%GS" used to put quotes around the signer's uid (or rather: it inherited from the gpg user output). We output the uid without quotes now, just like author and committer names. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14gpg_interface: allow to request status returnLibravatar Michael J Gruber1-1/+1
Currently, verify_signed_buffer() returns the user facing output only. Allow callers to request the status output also. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26logmsg_reencode: lazily load missing commit buffersLibravatar Jeff King1-8/+49
Usually a commit that makes it to logmsg_reencode will have been parsed, and the commit->buffer struct member will be valid. However, some code paths will free commit buffers after having used them (for example, the log traversal machinery will do so to keep memory usage down). Most of the time this is fine; log should only show a commit once, and then exits. However, there are some code paths where this does not work. At least two are known: 1. A commit may be shown as part of a regular ref, and then it may be shown again as part of a submodule diff (e.g., if a repo contains refs to both the superproject and subproject). 2. A notes-cache commit may be shown during "log --all", and then later used to access a textconv cache during a diff. Lazily loading in logmsg_reencode does not necessarily catch all such cases, but it should catch most of them. Users of the commit buffer tend to be either parsing for structure (in which they will call parse_commit, and either we will already have parsed, or we will load commit->buffer lazily there), or outputting (either to the user, or fetching a part of the commit message via format_commit_message). In the latter case, we should always be using logmsg_reencode anyway (and typically we do so via the pretty-print machinery). If there are any cases that this misses, we can fix them up to use logmsg_reencode (or handle them on a case-by-case basis if that is inappropriate). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26logmsg_reencode: never return NULLLibravatar Jeff King1-16/+22
The logmsg_reencode function will return the reencoded commit buffer, or NULL if reencoding failed or no reencoding was necessary. Since every caller then ends up checking for NULL and just using the commit's original buffer, anyway, we can be a bit more helpful and just return that buffer when we would have returned NULL. Since the resulting string may or may not need to be freed, we introduce a logmsg_free, which checks whether the buffer came from the commit object or not (callers either implemented the same check already, or kept two separate pointers, one to mark the buffer to be used, and one for the to-be-freed string). Pushing this logic into logmsg_* simplifies the callers, and will let future patches lazily load the commit buffer in a single place. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-20Merge branch 'ap/log-mailmap'Libravatar Junio C Hamano1-50/+64
Teach commands in the "log" family to optionally pay attention to the mailmap. * ap/log-mailmap: log --use-mailmap: optimize for cases without --author/--committer search log: add log.mailmap configuration option log: grep author/committer using mailmap test: add test for --use-mailmap option log: add --use-mailmap option pretty: use mailmap to display username and email mailmap: add mailmap structure to rev_info and pp mailmap: simplify map_user() interface mailmap: remove email copy and length limitation Use split_ident_line to parse author and committer string-list: allow case-insensitive string list
2013-01-18Merge branch 'rs/pretty-use-prefixcmp'Libravatar Junio C Hamano1-4/+4
* rs/pretty-use-prefixcmp: pretty: use prefixcmp instead of memcmp on NUL-terminated strings
2013-01-14pretty: use prefixcmp instead of memcmp on NUL-terminated stringsLibravatar René Scharfe1-4/+4
This conversion avoids the need for magic string length numbers in the code. And unlike memcmp(), prefixcmp() is careful to not run over the end of a string. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10Merge branch 'jc/same-encoding' into maintLibravatar Junio C Hamano1-12/+4
* jc/same-encoding: format_commit_message(): simplify calls to logmsg_reencode()
2013-01-10pretty: use mailmap to display username and emailLibravatar Antoine Pelisse1-21/+37
Use the mailmap information to display the rewritten username and email address in all log commands. Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10mailmap: simplify map_user() interfaceLibravatar Antoine Pelisse1-22/+13
Simplify map_user(), mostly to avoid copies of string buffers. It also simplifies caller functions. map_user() directly receive pointers and length from the commit buffer as mail and name. If mapping of the user and mail can be done, the pointer is updated to a new location. Lengths are also updated if necessary. The caller of map_user() can then copy the new email and name if necessary. Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-07Use split_ident_line to parse author and committerLibravatar Antoine Pelisse1-14/+21
Currently blame.c::get_acline(), pretty.c::pp_user_info() and shortlog.c::insert_one_record() are parsing author name, email, time and tz themselves. Use ident.c::split_ident_line() for better code reuse. Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-05Merge branch 'jc/format-color-auto'Libravatar Junio C Hamano1-3/+10
Introduce "log --format=%C(auto,blue)Foo%C(auto,reset)" that does not color its output when writing to a non-terminal. * jc/format-color-auto: log --format: teach %C(auto,black) to respect color config t6006: clean up whitespace
2013-01-03Merge branch 'jc/same-encoding'Libravatar Junio C Hamano1-12/+4
Finishing touches to the series to unify "Do we need to reencode between these two encodings?" logic. * jc/same-encoding: format_commit_message(): simplify calls to logmsg_reencode()
2012-12-17log --format: teach %C(auto,black) to respect color configLibravatar Junio C Hamano1-3/+10
Traditionally, %C(color attr) always emitted the ANSI color sequence; it was up to the scripts that wanted to conditionally color their output to omit %C(...) specifier when they do not want colors. Optionally allow "auto," to be prefixed to the color, so that the output is colored iff we would color regular "log" output (e.g., taking into account color.* and --color command line options). Tests and pretty_context bits by Jeff King <peff@peff.net>. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-10format_commit_message(): simplify calls to logmsg_reencode()Libravatar Junio C Hamano1-12/+4
All the other callers of logmsg_reencode() pass return value of get_commit_output_encoding() or get_log_output_encoding(). Teach the function to optionally take NULL as a synonym to "" aka "no conversion requested" so that we can simplify the only remaining calling site. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-07Merge branch 'jc/same-encoding' into maintLibravatar Junio C Hamano1-1/+1
Various codepaths checked if two encoding names are the same using ad-hoc code and some of them ended up asking iconv() to convert between "utf8" and "UTF-8". The former is not a valid way to spell the encoding name, but often people use it by mistake, and we equated them in some but not all codepaths. Introduce a new helper function to make these codepaths consistent. * jc/same-encoding: reencode_string(): introduce and use same_encoding()