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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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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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Avoid buffer overflow in format_person_part() function
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Fixes error codepath when a malformed commit object has a header line
chomped in the middle.
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If a commit object has a header line at the end of the
buffer that is missing its newline (or if it appears so
because the content on the header line contains a stray
NUL), then git will segfault.
Interestingly, this case is explicitly handled and we do
correctly scan the final line for the header we are looking
for. But if we don't find it, we will dereference NULL while
trying to look at the next line.
Git will never generate such a commit, but it's good to be
defensive. We could die() in such a case, but since it's
easy enough to handle it gracefully, let's just issue a
warning and continue (so you could still view such a commit
with "git show", though you might be missing headers after
the NUL).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we parse the name and email from a commit to
pretty-print them, we usually can just put the result
directly into our strbuf result. However, if we are going to
use the mailmap, then we must first copy them into a
NUL-terminated buffer to feed to the mailmap machinery.
We did so by using strlcpy into a static buffer, but we used
it wrong. We fed it the length of the substring we wanted to
copy, but never checked that that length was less than the
size of the destination buffer.
The simplest fix is to just use snprintf to copy the
substring properly while still respecting the destination
buffer's size. It might seem like replacing the static
buffer with a strbuf would help, but we need to feed a
static buffer to the mailmap machinery anyway, so there's
not much benefit to handling arbitrary sizes.
A more ideal solution would be for mailmap to grow an
interface that:
1. Takes a pointer and length combination, instead of
assuming a NUL-terminated string.
2. Returns a pointer to the mailmap's allocated string,
rather than copying it into the buffer.
Then we could avoid the need for an extra buffer entirely.
However, doing this would involve a lot of refactoring of
mailmap and of string_list (which mailmap uses to store the
map itself). For now, let's do the simplest thing to fix the
bug.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Gives a better DWIM behaviour for --pretty=format:%gd, "stash list", and
"log -g", depending on how the starting point ("master" vs "master@{0}" vs
"master@{now}") and date formatting options (e.g. "--date=iso") are given
on the command line.
By Jeff King (4) and Junio C Hamano (1)
* jk/maint-reflog-walk-count-vs-time:
reflog-walk: tell explicit --date=default from not having --date at all
reflog-walk: always make HEAD@{0} show indexed selectors
reflog-walk: clean up "flag" field of commit_reflog struct
log: respect date_mode_explicit with --format:%gd
t1411: add more selector index/date tests
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Introduction of opt->date_mode_explicit was a step in the right direction,
but lost that crucial bit at the very end of the callchain, and the callee
could not tell an explicitly specified "I want *date* but in default format"
from the built-in default value passed when there was no --date specified.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we show a reflog selector (e.g., via "git log -g"), we
perform some DWIM magic: while we normally show the entry's
index (e.g., HEAD@{1}), if the user has given us a date
with "--date", then we show a date-based select (e.g.,
HEAD@{yesterday}).
However, we don't want to trigger this magic if the
alternate date format we got was from the "log.date"
configuration; that is not sufficiently strong context for
us to invoke this particular magic. To fix this, commit
f4ea32f (improve reflog date/number heuristic, 2009-09-24)
introduced a "date_mode_explicit" flag in rev_info. This
flag is set only when we see a "--date" option on the
command line, and we a vanilla date to the reflog code if
the date was not explicit.
Later, commit 8f8f547 (Introduce new pretty formats %g[sdD]
for reflog information, 2009-10-19) added another way to
show selectors, and it did not respect the date_mode_explicit
flag from f4ea32f.
This patch propagates the date_mode_explicit flag to the
pretty-print code, which can then use it to pass the
appropriate date field to the reflog code. This brings the
behavior of "%gd" in line with the other formats, and means
that its output is independent of any user configuration.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The commit formatting logic format_person_part() in pretty.c
implements the logic to split an author/committer ident line into
its parts, intermixed with logic to compute its output using these
piece it computes.
Separate the former out to a helper function split_ident_line() so
that other codepath can use the same logic, and rewrite the function
using the helper function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/show-sig:
log --show-signature: reword the common two-head merge case
log-tree: show mergetag in log --show-signature output
log-tree.c: small refactor in show_signature()
commit --amend -S: strip existing gpgsig headers
verify_signed_buffer: fix stale comment
gpg-interface: allow use of a custom GPG binary
pretty: %G[?GS] placeholders
test "commit -S" and "log --show-signature"
log: --show-signature
commit: teach --gpg-sign option
Conflicts:
builtin/commit-tree.c
builtin/commit.c
builtin/merge.c
notes-cache.c
pretty.c
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When doing a reflog walk, you can get some information about
the reflog (such as the subject line), but not the identity
information (i.e., name and email).
Let's make those available, mimicing the options for author
and committer identity.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add new placeholders related to the GPG signature on signed commits.
- %GG to show the raw verification message from GPG;
- %G? to show either "G" for Good, "B" for Bad;
- %GS to show the name of the signer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* nd/pretty-commit-log-message:
pretty.c: use original commit message if reencoding fails
pretty.c: free get_header() return value
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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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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/format-patch-am:
format-patch: preserve subject newlines with -k
clean up calling conventions for pretty.c functions
pretty: add pp_commit_easy function for simple callers
mailinfo: always clean up rfc822 header folding
t: test subject handling in format-patch / am pipeline
Conflicts:
builtin/branch.c
builtin/log.c
commit.h
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* jc/fmt-req-fix:
userformat_find_requirements(): find requirement for the correct format
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In older versions of git, we used rfc822 header folding to
indicate that the original subject line had multiple lines
in it. But since a1f6baa (format-patch: wrap long header
lines, 2011-02-23), we now use header folding whenever there
is a long line.
This means that "git am" cannot trust header folding as a
sign from format-patch that newlines should be preserved.
Instead, format-patch needs to signal more explicitly that
the newlines are significant. This patch does so by
rfc2047-encoding the newlines in the subject line. No
changes are needed on the "git am" end; it already decodes
the newlines properly.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have a pretty_print_context representing the parameters
for a pretty-print session, but we did not use it uniformly.
As a result, functions kept growing more and more arguments.
Let's clean this up in a few ways:
1. All pretty-print pp_* functions now take a context.
This lets us reduce the number of arguments to these
functions, since we were just passing around the
context values separately.
2. The context argument now has a cmit_fmt field, which
was passed around separately. That's one less argument
per function.
3. The context argument always comes first, which makes
calling a little more uniform.
This drops lines from some callers, and adds lines in a few
places (because we need an extra line to set the context's
fmt field). Overall, we don't save many lines, but the lines
that are there are a lot simpler and more readable.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Many callers don't actually care about the pretty print
context at all; let's just give them a simple way of
pretty-printing a commit without having to create a context
struct.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function was introduced in 5b16360 (pretty: Initialize notes if %N is
used, 2010-04-13) to check what kind of information the "log --format=..."
user format string wants. The function can be passed a NULL instead of a
format string to ask it to check user_format variable kept by an earlier
call to save_user_format().
But it unconditionally checked user_format and not the string it was
given. The only caller introduced by the change passes NULL, which
kept the bug unnoticed, until a new GCC noticed that there is an
assignment to fmt that is never used.
Noticed-by: Chris Wilson's compiler
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Jeff King <peff@peff.net>
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* jk/format-patch-quote-special-in-from:
pretty: quote rfc822 specials in email addresses
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* jk/format-patch-quote-special-in-from:
pretty: quote rfc822 specials in email addresses
Conflicts:
pretty.c
t/t4014-format-patch.sh
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* jk/format-patch-multiline-header:
format-patch: wrap email addresses after long names
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If somebody has a name that includes an rfc822 special, we
will output it literally in the "From:" header. This is
usually OK, but certain characters (like ".") are supposed
to be enclosed in double-quotes in a mail header.
In practice, whether this matters may depend on your MUA.
Some MUAs will happily take in:
From: Foo B. Bar <author@example.com>
without quotes, and properly quote the "." when they send
the actual mail. Others may not, or may screw up harder
things like:
From: Foo "The Baz" Bar <author@example.com>
For example, mutt will strip the quotes, thinking they are
actual syntactic rfc822 quotes.
So let's quote properly, and then (if necessary) we still
apply rfc2047 encoding on top of that, which should make all
MUAs happy.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We already wrap names in "from" headers, which tend to be
the long part of an address. But it's also possible for a
long name to not be wrapped, but to make us want to wrap the
email address. For example (imagine for the sake of
readability we want to wrap at 50 characters instead of 78):
From: this is my really long git name <foo@example.com>
The name does not overflow the line, but the name and email
together do. So we would rather see:
From: this is my really long git name
<git@example.com>
Because we wrap the name separately during add_rfc2047, we
neglected this case. Instead, we should see how long the
final line of the wrapped name ended up, and decide whether
or not to wrap based on that. We can't break the address
into multiple parts, so we either leave it with the name, or
put it by itself on a line.
Test by Erik Faye-Lund.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mg/rev-list-one-side-only:
git-log: put space after commit mark
t6007: test rev-list --cherry
log --cherry: a synonym
rev-list: documentation and test for --cherry-mark
revision.c: introduce --cherry-mark
rev-list/log: factor out revision mark generation
rev-list: --left/right-only are mutually exclusive
rev-list: documentation and test for --left/right-only
t6007: Make sure we test --cherry-pick
revlist.c: introduce --left/right-only for unsymmetric picking
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Currently, we have identical code for generating revision marks ('<',
'>', '-') in 5 places.
Factor out the code to a single function get_revision_mark() for easier
maintenance and extensibility.
Note that the check for !!revs in graph.c (which gets removed
effectively by this patch) is superfluous.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These should generally never happen, as we already
concatenate multiples in subjects into a single line. But
let's be defensive, since not encoding them means we will
output malformed headers.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Subject and identity headers may be arbitrarily long. In the
past, we just assumed that single-line headers would be
reasonably short. For multi-line subjects that we squish
into a single line, we just "pre-folded" the data in
pp_title_line by adding a newline and indentation.
There were two problems. One is that, although rare,
single-line messages can actually be longer than the
recommended line-length limits. The second is that the
pre-folding interacted badly with rfc2047 encoding, leading
to malformed headers.
Instead, let's stop pre-folding the subject lines, and just
fold everything based on length in add_rfc2047, whether
it is encoded or not.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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format_commit_message() will now reencode the content if the desired
output encoding is different from the encoding in the passed in
commit. Callers wanting to specify the output encoding do so via the
pretty_print_context struct.
Signed-off-by: Pat Notz <patnotz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* builtin/commit.c: Replace block of code with a one-liner call to
logmsg_reencode().
* commit.c: new function for looking up a comit by name
* pretty.c: helper methods for getting output encodings
Add helpers get_log_output_encoding() and
get_commit_output_encoding() that eliminate some messy and duplicate
if-blocks.
Signed-off-by: Pat Notz <patnotz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mg/pretty-magic-space:
pretty: Introduce ' ' modifier to add space if non-empty
Conflicts:
pretty.c
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* gv/portable:
test-lib: use DIFF definition from GIT-BUILD-OPTIONS
build: propagate $DIFF to scripts
Makefile: Tru64 portability fix
Makefile: HP-UX 10.20 portability fixes
Makefile: HPUX11 portability fixes
Makefile: SunOS 5.6 portability fix
inline declaration does not work on AIX
Allow disabling "inline"
Some platforms lack socklen_t type
Make NO_{INET_NTOP,INET_PTON} configured independently
Makefile: some platforms do not have hstrerror anywhere
git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
test_cmp: do not use "diff -u" on platforms that lack one
fixup: do not unconditionally disable "diff -u"
tests: use "test_cmp", not "diff", when verifying the result
Do not use "diff" found on PATH while building and installing
enums: omit trailing comma for portability
Makefile: -lpthread may still be necessary when libc has only pthread stubs
Rewrite dynamic structure initializations to runtime assignment
Makefile: pass CPPFLAGS through to fllow customization
Conflicts:
Makefile
wt-status.h
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We have the '+' modifiier which helps combine format specifiers which
may possibly be empty, e.g. '%s%+b%n'.
Introduce an analogous ' ' (space) modifier which adds a space before
non-empty items. This helps assemble "one line type" format specifiers.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* wp/pretty-enhancement:
pretty: initialize new cmt_fmt_map to 0
pretty: add aliases for pretty formats
pretty: add infrastructure for commit format aliases
pretty: make it easier to add new formats
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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>
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* jn/shortlog:
pretty: Respect --abbrev option
shortlog: Document and test --format option
t4201 (shortlog): Test output format with multiple authors
t4201 (shortlog): guard setup with test_expect_success
Documentation/shortlog: scripted users should not rely on implicit HEAD
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* eb/unpretty-b-format:
Add `%B' in format strings for raw commit body in `git log' and friends
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Without this change, is_alias is likely to happen to be nonzero,
resulting in "fatal: invalid --pretty format" when the fake alias
cannot be resolved.
Use memset instead of initializing the members one by one to make it
easier to expand the struct in the future if needed.
t4205 (log --pretty) does not pass for me without this fix.
Cc: Will Palmer <wmpalmer@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Prior to this, the output of git log -1 --format=%h was always 7
characters long, without regard to whether --abbrev had been passed.
Signed-off-by: Will Palmer <wmpalmer@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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previously the only ways to alias a --pretty format within git were
either to set the format as your default format (via the format.pretty
configuration variable), or by using a regular git alias. This left the
definition of more complicated formats to the realm of "builtin or
nothing", with user-defined formats usually being reserved for quick
one-offs.
Here we allow user-defined formats to enjoy more or less the same
benefits of builtins. By defining pretty.myalias, "myalias" can be
used in place of whatever would normally come after --pretty=. This
can be a format:, tformat:, raw (ie, defaulting to tformat), or the name
of another builtin or user-defined pretty format.
Signed-off-by: Will Palmer <wmpalmer@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow named commit formats to alias one another; find_commit_format() will
recursively dereference aliases when they are specified. At this point,
there are no aliases specified and there is no way to specify an alias,
but the support is there for any which are added.
If an alias loop is detected, the function die()s.
Signed-off-by: Will Palmer <wmpalmer@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As the first step towards creating aliases, we make it easier to add new
formats to the list of builtin formats. To do this, we move the
initialization of the formats array into a new function,
setup_commit_formats(), which we can easily extend later. Then, rather
than looping through only the list of known formats, we make a more
generic find_commit_format function, which will return the commit format
whose name is the shortest which is prefixed with the passed-in sought
format, the same rules which were more-or-less hard-coded in before.
Signed-off-by: Will Palmer <wmpalmer@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Jan H. Schönherr
Jeff King
Nguyễn Thái Ngọc Duy
Michael J Gruber
Pat Notz
Gary V. Vaughan
Jonathan Nieder
Will Palmer