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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>
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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>
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* 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()
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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>
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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>
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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>
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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
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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"
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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>
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%>(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>
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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>
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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>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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>
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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>
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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>
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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>
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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>
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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
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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
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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>
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Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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
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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
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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>
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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>
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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>
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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>
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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>
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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>
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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
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* rs/pretty-use-prefixcmp:
pretty: use prefixcmp instead of memcmp on NUL-terminated strings
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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>
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* jc/same-encoding:
format_commit_message(): simplify calls to logmsg_reencode()
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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>
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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>
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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>
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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
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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()
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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>
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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>
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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()
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Emit the notes attached to the commit in "format-patch --notes"
output after three-dashes.
* jc/prettier-pretty-note:
format-patch: add a blank line between notes and diffstat
Doc User-Manual: Patch cover letter, three dashes, and --notes
Doc format-patch: clarify --notes use case
Doc notes: Include the format-patch --notes option
Doc SubmittingPatches: Mention --notes option after "cover letter"
Documentation: decribe format-patch --notes
format-patch --notes: show notes after three-dashes
format-patch: append --signature after notes
pretty_print_commit(): do not append notes message
pretty: prepare notes message at a centralized place
format_note(): simplify API
pretty: remove reencode_commit_message()
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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()
Conflicts:
builtin/mailinfo.c
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Callers of reencode_string() that re-encodes a string from one
encoding to another all used ad-hoc way to bypass the case where the
input and the output encodings are the same. Some did strcmp(),
some did strcasecmp(), yet some others when converting to UTF-8 used
is_encoding_utf8().
Introduce same_encoding() helper function to make these callers use
the same logic. Notably, is_encoding_utf8() has a work-around for
common misconfiguration to use "utf8" to name UTF-8 encoding, which
does not match "UTF-8" hence strcasecmp() would not consider the
same. Make use of it in this helper function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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According to RFC 2047 and RFC 822, rfc2047 encoded words and and rfc822
quoted strings do not mix. Since add_rfc2047() no longer leaves RFC 822
specials behind, the quoting is also no longer necessary to create a
standard-conforming mail.
Remove the quoting, when RFC 2047 encoding takes place. This actually
requires to refactor add_rfc2047() a bit, so that the different cases
can be distinguished.
With this patch, my own name gets correctly decoded as Jan H. Schönherr
(without quotes) and not as "Jan H. Schönherr" (with quotes).
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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RFC 2047 requires more characters to be encoded than it is currently done.
Especially, RFC 2047 distinguishes between allowed remaining characters
in encoded words in addresses (From, To, etc.) and other headers, such
as Subject.
Make add_rfc2047() and is_rfc2047_special() location dependent and include
all non-allowed characters to hopefully be RFC 2047 conformant.
This especially fixes a problem, where RFC 822 specials (e. g. ".") were
left unencoded in addresses, which was solved with a non-standard-conforming
workaround in the past (which is going to be removed in a follow-up patch).
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, an open-coded loop to calculate the length of the last
line of a string buffer is used in multiple places.
Move that code into a function of its own.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Encoded characters add more than one character at once to an encoded
header. Include all characters that are about to be added in the length
calculation for wrapping.
Additionally, RFC 2047 imposes a maximum line length of 76 characters
if that line contains an rfc2047 encoded word.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Do not wrap the second and later lines of non-rfc2047-encoded headers
substantially before the 78 character limit.
Instead of passing the remaining length of the first line as wrapping
width, use the correct maximum length and tell strbuf_add_wrapped_bytes()
how many characters of the first line are already used.
Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Jeff King
Junio C Hamano
René Scharfe
Nguyễn Thái Ngọc Duy
Sebastian Götte
Kirill Smelkov
Michael J Gruber
Antoine Pelisse
Jan H. Schönherr