Commit Graph

28 Commits

Author SHA1 Message Date
Junio C Hamano
35e6afd4c6 Merge branch 'jk/color-parse'
* jk/color-parse:
  Optimize color_parse_mem
  expand --pretty=format color options
  color: make it easier for non-config to parse color specs
2009-01-21 16:50:34 -08:00
Jeff King
c002922adc expand --pretty=format color options
Currently, the only colors available to --pretty=format
users are red, green, and blue. Rather than expand it with a
few new colors, this patch makes the usual config color
syntax available, including more colors, backgrounds, and
attributes.

Because colors are no longer bounded to a single word (e.g.,
%Cred), this uses a more advanced syntax that features a
beginning and end delimiter (but the old syntax still
works). So you can now do:

  git log --pretty=tformat:'%C(yellow)%h%C(reset) %s'

to emulate --pretty=oneline, or even

  git log --pretty=tformat:'%C(cyan magenta bold)%s%C(reset)'

if you want to relive the awesomeness of 4-color CGA.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 18:04:24 -08:00
René Scharfe
cec08717cc shortlog: handle multi-line subjects like log --pretty=oneline et. al. do
The commit message parser of git shortlog used to treat only the first
non-empty line of the commit message as the subject.  Other log commands
(e.g. --pretty=oneline) show the whole first paragraph instead (unwrapped
into a single line).

For consistency, this patch borrows format_subject() from pretty.c to
make shortlog do the same.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-06 22:06:07 -08:00
René Scharfe
f53bd743ff pretty: support multiline subjects with format:
git log --pretty=format:%s (and tformat:) used to display the first
line of the subject, unlike the other --pretty options, which would
construct a subject line from all lines of the first paragraph of
the commit message.

For consistency and increased code reuse, change format: to do the
same as the other options.

Before:
	$ git log --pretty=oneline v1.6.1 | md5sum
	7c0896d2a94fc3315a0372b9b3373a8f  -
	$ git log --pretty=tformat:"%H %s" v1.6.1 | md5sum
	298903b1c065002e15daa5329213c51f  -

After:
	$ git log --pretty=tformat:"%H %s" v1.6.1 | md5sum
	7c0896d2a94fc3315a0372b9b3373a8f  -
	$ git log --pretty=oneline v1.6.1 | md5sum
	7c0896d2a94fc3315a0372b9b3373a8f  -

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-27 12:02:49 -08:00
René Scharfe
88c44735ab pretty: factor out format_subject()
The next patch will use it.

In the version that was factored out, we can't rely on the len of the
struct strbuf to find out if a line separator needs to be added, as
it might already contain something.  Add a guard variable ("first")
instead.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-27 12:02:40 -08:00
René Scharfe
a010966844 pretty: factor out skip_empty_lines()
The patch after the next one will use it.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-27 12:02:32 -08:00
Alexander Gavrilov
69cd8f6342 builtin-blame: Reencode commit messages according to git-log rules.
Currently git-blame outputs text from the commit messages
(e.g. the author name and the summary string) as-is, without
even providing any information about the encoding used for
the data. It makes interpreting the data in multilingual
environment very difficult.

This commit changes the blame implementation to recode the
messages using the rules used by other commands like git-log.
Namely, the target encoding can be specified through the
i18n.commitEncoding or i18n.logOutputEncoding options, or
directly on the command line using the --encoding parameter.

Converting the encoding before output seems to be more
friendly to the porcelain tools than simply providing the
value of the encoding header, and does not require changing
the output format.

If anybody needs the old behavior, it is possible to
achieve it by specifying --encoding=none.

Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-21 14:09:34 -07:00
Brandon Casey
f285a2d7ed Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializer
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>
2008-10-12 12:36:19 -07:00
René Scharfe
3b3d443feb add '%d' pretty format specifier to show decoration
Add a new format placeholder, %d, which expands to a ref name decoration
(think git log --decorate).  It expands to an empty string if the commit
has no decoration, or otherwise to a comma (and space) separated list of
decorations, surrounded by parentheses and a leading space.

Michael Dressel implemented an initial version and chose the letter d,
Junio suggested to add a leading space and parentheses.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-04 17:01:41 -07:00
Jeff King
d36f8679e9 pretty=format: respect date format options
When running a command like:

  git log --pretty=format:%ad --date=short

the date option was ignored. This patch causes it to use whatever
format was specified by --date (or by --relative-date, etc), just
as the non-user formats would do.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-29 00:14:29 -07:00
Johannes Schindelin
c455c87c5c Rename path_list to string_list
The name path_list was correct for the first usage of that data structure,
but it really is a general-purpose string list.

$ perl -i -pe 's/path-list/string-list/g' $(git grep -l path-list)
$ perl -i -pe 's/path_list/string_list/g' $(git grep -l path_list)
$ git mv path-list.h string-list.h
$ git mv path-list.c string-list.c
$ perl -i -pe 's/has_path/has_string/g' $(git grep -l has_path)
$ perl -i -pe 's/path/string/g' string-list.[ch]
$ git mv Documentation/technical/api-path-list.txt \
	Documentation/technical/api-string-list.txt
$ perl -i -pe 's/strdup_paths/strdup_strings/g' $(git grep -l strdup_paths)

... and then fix all users of string-list to access the member "string"
instead of "path".

Documentation/technical/api-string-list.txt needed some rewrapping, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-21 19:11:50 -07:00
Johannes Schindelin
e0cbc39768 Add pretty format %aN which gives the author name, respecting .mailmap
The pretty format %an does not respect .mailmap, but gives the exact
author name recorded in the commit.  Sometimes it is more desirable,
however, to look if the email has another name mapped to it in .mailmap.

This commit adds %aN (and %cN for the committer name) to do exactly that.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-11 21:16:37 -07:00
Junio C Hamano
48ded91674 log --pretty: do not accept bogus "--prettyshort"
... nor bogus "format.pretty = '=short'".  Both are syntax errors.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25 20:29:07 -07:00
Junio C Hamano
4da45bef56 log: teach "terminator" vs "separator" mode to "--pretty=format"
This attached patch introduces a single bit "use_terminator" in "struct
rev_info", which is normally false (i.e. most formats use separator
semantics) but by flipping it to true, you can ask for terminator
semantics just like oneline format does.

The function get_commit_format(), which is what parses "--pretty=" option,
now takes a pointer to "struct rev_info" and updates its commit_format and
use_terminator fields.  It used to return the value of type "enum
cmit_fmt", but all the callers assigned it to rev->commit_format.

There are only two cases the code turns use_terminator on.  Obviously, the
traditional oneline format (--pretty=oneline) is one of them, and the new
case is --pretty=tformat:... that acts like --pretty=format:... but flips
the bit on.

With this, "--pretty=tformat:%H %s" acts like --pretty=oneline.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-10 03:25:03 -07:00
Govind Salinas
42c8c74c14 pretty.c: add %x00 format specifier.
This adds a %xXX format which inserts two hexdigits after %x as a byte
value in the resulting string.  This can be used to add a NUL byte or any
other byte that can make machine parsing easier.  It is also necessary to
use fwrite to print out the data since printf will terminate if you feed
it a NUL.

Signed-off-by: Govind Salinas <blix@sophiasuchtig.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23 00:41:54 -07:00
Junio C Hamano
267123b429 Merge branch 'maint'
* maint:
  format-patch: generate MIME header as needed even when there is format.header
2008-03-15 00:09:33 -07:00
Junio C Hamano
6bf4f1b4c9 format-patch: generate MIME header as needed even when there is format.header
Earlier, the callchain from pretty_print_commit() down to pp_title_line()
had an unwarranted assumption that the presense of "after_subject"
parameter, means the caller has already output MIME headers for
attachments.  The parameter's primary purpose is to give extra header
lines the caller wants to place after pp_title_line() generates the
"Subject: " line.

This assumption does not hold when the user used the format.header
configuration variable to pass extra headers, and caused a message with
non-ASCII character to lack proper MIME headers (e.g.  8-bit CTE header).
The earlier logic also failed to suppress duplicated MIME headers when
"format-patch -s --attach" is asked for and the signer's name demanded
8-bit clean transport.

This patch fixes the logic by introducing a separate need_8bit_cte
parameter passed down the callchain.  This can have one of these values:

 -1 : we've already done MIME crap and we do not want to add extra header
      to say this is 8bit in pp_title_line();

  0 : we haven't done MIME and we have not seen anything that is 8bit yet;

  1 : we haven't done MIME and we have seen something that is 8bit;
      pp_title_line() must add MIME header.

It adds two tests by Jeff King who independently diagnosed this issue.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-15 00:06:06 -07:00
Junio C Hamano
3d0a936f63 Merge branch 'jm/free'
* jm/free:
  Avoid unnecessary "if-before-free" tests.

Conflicts:

	builtin-branch.c
2008-02-27 13:03:50 -08:00
Junio C Hamano
992221d05e Merge branch 'db/cover-letter'
* db/cover-letter:
  Improve collection of information for format-patch --cover-letter
  Add API access to shortlog
  t4014: Replace sed's non-standard 'Q' by standard 'q'
  Support a --cc=<email> option in format-patch
  Combine To: and Cc: headers
  Fix format.headers not ending with a newline
  Add tests for extra headers in format-patch
  Add a --cover-letter option to format-patch
  Export some email and pretty-printing functions
  Improve message-id generation flow control for format-patch
  Add more tests for format-patch

Conflicts:

	builtin-log.c
	builtin-shortlog.c
	pretty.c
2008-02-27 12:06:41 -08:00
Jim Meyering
8e0f70033b Avoid unnecessary "if-before-free" tests.
This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:

        if (some_expression)
                free (some_expression);

with the now-equivalent:

        free (some_expression);

It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:

    http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html

FYI, the change below was prepared by running the following:

  git ls-files -z | xargs -0 \
  perl -0x3b -pi -e \
    's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'

Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }".  But that's ok, since there were none like
that in git sources.

Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code.  That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this

  if (x)
    free (x);
  else
    foo ();

into this:

  free (x);
  else
    foo ();

There were none of those here, either.

If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
 option to make it detect free-like functions with different names]

  http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free

Addendum:
  Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22 14:14:40 -08:00
Daniel Barkalow
b02bd65f67 Export some email and pretty-printing functions
These will be used for generating the cover letter in addition to the
patch emails.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-19 00:56:46 -08:00
Marco Costalba
c3a670de50 Avoid a useless prefix lookup in strbuf_expand()
Currently, the --pretty=format prefix is looked up in a
tight loop in strbuf_expand(), if prefix is found it is then
used as argument for format_commit_item() that does another
search by a switch statement to select the proper operation.

Because the switch statement is already able to discard
unknown matches we don't need the prefix lookup before
to call format_commit_item().

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-09 23:57:08 -08:00
Junio C Hamano
f7ab5c7937 custom pretty format: tolerate empty e-mail address
When e-mail address is empty (e.g. "A U Thor <>"), --pretty=format
misparsed the commit header and did not pick up the date field correctly.

Noticed by Marco, fixed slightly differently with additional sanity
check and with a test.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-06 18:41:43 -08:00
René Scharfe
7ed0988adc Make "--pretty=format" parser a bit more careful.
When a commit message that does not have a terminating LF is
read in and the memory that was allocated to read it happens to
have a LF immediately after that, the code was not careful and
went past the terminating NUL.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-26 17:52:32 -08:00
René Scharfe
b9c6232138 --format=pretty: avoid calculating expensive expansions twice
As Jeff King remarked, format strings with duplicate placeholders can
be slow to expand, because each instance is calculated anew.

This patch makes use of the fact that format_commit_message() and its
helper functions only ever add stuff to the end of the strbuf.  For
certain expensive placeholders, store the offset and length of their
expansion with the strbuf at the first occurrence.  Later they
expansion result can simply be copied from there -- no malloc() or
strdup() required.

These certain placeholders are the abbreviated commit, tree and
parent hashes, as the search for a unique abbreviated hash is quite
costly.  Here are the times for next (best of three runs):

$ time git log --pretty=format:%h >/dev/null

real    0m0.611s
user    0m0.404s
sys     0m0.204s

$ time git log --pretty=format:%h%h%h%h >/dev/null

real    0m1.206s
user    0m0.744s
sys     0m0.452s

And here those with this patch (and the previous two); the speedup
of the single placeholder case is just noise:

$ time git log --pretty=format:%h >/dev/null

real    0m0.608s
user    0m0.416s
sys     0m0.192s

$ time git log --pretty=format:%h%h%h%h >/dev/null

real    0m0.639s
user    0m0.488s
sys     0m0.140s

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-11 02:04:46 -08:00
René Scharfe
f29d59586c --pretty=format: parse commit message only once
As Jeff King pointed out, some placeholder expansions are related to
each other: the steps to calculate one go most of the way towards
calculating the other, too.

This patch makes format_commit_message() parse the commit message
only once, remembering the position of each item.  This speeds up
handling of format strings containing multiple placeholders from the
set %s, %a*, %c*, %e, %b.

Here are the timings for the git version in next.  The first one is
to estimate the overhead of the caching, the second one is taken
from http://svn.tue.mpg.de/tentakel/trunk/tentakel/Makefile as an
example of a format string found in the wild.  The times are the
fastest of three consecutive runs in each case:

$ time git log --pretty=format:%e >/dev/null

real    0m0.381s
user    0m0.340s
sys     0m0.024s

$ time git log --pretty=format:"* %cd %cn%n%n%s%n%b" >/dev/null

real    0m0.623s
user    0m0.556s
sys     0m0.052s

And here the times with this patch:

$ time git log --pretty=format:%e >/dev/null

real    0m0.385s
user    0m0.332s
sys     0m0.040s

$ time git log --pretty=format:"* %cd %cn%n%n%s%n%b" >/dev/null

real    0m0.563s
user    0m0.504s
sys     0m0.048s

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-11 02:04:46 -08:00
René Scharfe
cde75e59e1 --pretty=format: on-demand format expansion
Some of the --pretty=format placeholders expansions are expensive to
calculate.  This is made worse by the current code's use of
interpolate(), which requires _all_ placeholders are to be prepared
up front.

One way to speed this up is to check which placeholders are present
in the format string and to prepare only the expansions that are
needed.  That still leaves the allocation overhead of interpolate().

Another way is to use a callback based approach together with the
strbuf library to keep allocations to a minimum and avoid string
copies.  That's what this patch does.  It introduces a new strbuf
function, strbuf_expand().

The function takes a format string, list of placeholder strings,
a user supplied function 'fn', and an opaque pointer 'context'
to tell 'fn' what thingy to operate on.

The function 'fn' is expected to accept a strbuf, a parsed
placeholder string and the 'context' pointer, and append the
interpolated value for the 'context' thingy, according to the
format specified by the placeholder.

Thanks to Pierre Habouzit for his suggestion to use strchrnul() and
the code surrounding its callsite.  And thanks to Junio for most of
this commit message. :)

Here my measurements of most of Paul Mackerras' test cases that
highlighted the performance problem (best of three runs):

(master)
$ time git log --pretty=oneline >/dev/null

real    0m0.390s
user    0m0.340s
sys     0m0.040s

(master)
$ time git log --pretty=raw >/dev/null

real    0m0.434s
user    0m0.408s
sys     0m0.016s

(master)
$ time git log --pretty="format:%H {%P} %ct" >/dev/null

real    0m1.347s
user    0m0.080s
sys     0m1.256s

(interp_find_active -- Dscho)
$ time ./git log --pretty="format:%H {%P} %ct" >/dev/null

real    0m0.694s
user    0m0.020s
sys     0m0.672s

(strbuf_expand -- this patch)
$ time ./git log --pretty="format:%H {%P} %ct" >/dev/null

real    0m0.395s
user    0m0.352s
sys     0m0.028s

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-09 01:30:07 -08:00
Johannes Schindelin
93fc05eb9e Split off the pretty print stuff into its own file
The file commit.c got quite large, but it does not have to be: the
code concerning pretty printing is pretty well contained.  In fact,
this commit just splits it off into pretty.c, leaving commit.c with
just 672 lines.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-05 11:52:14 -08:00