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Author SHA1 Message Date
Eric Sunshine
58dbfa2e59 blame: accept multiple -L ranges
git-blame accepts only a single -L option or none. Clients requiring
blame information for multiple disjoint ranges are therefore forced
either to invoke git-blame multiple times, once for each range, or only
once with no -L option to cover the entire file, both of which can be
costly.  Teach git-blame to accept multiple -L ranges.  Overlapping and
out-of-order ranges are accepted.

In this patch, the X in -LX,Y is absolute (for instance, /RE/ patterns
search from line 1), and Y is relative to X. Follow-up patches provide
more flexibility over how X is anchored.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-06 14:29:35 -07:00
Eric Sunshine
753935749f blame: inline one-line function into its lone caller
As of 25ed3412 (Refactor parse_loc; 2013-03-28),
blame.c:prepare_blame_range() became effectively a one-line function
which merely passes its arguments along to another function. This
indirection does not bring clarity to the code. Simplify by inlining
prepare_blame_range() into its lone caller.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-06 14:28:09 -07:00
Eric Sunshine
164a9cf430 blame: fix -L bounds checking bug
Since inception, -LX,Y has correctly reported an out-of-range error when
Y is beyond end of file, however, X was not checked, and an out-of-range
X would cause a crash.  92f9e273 (blame: prevent a segv when -L given
start > EOF; 2010-02-08) attempted to rectify this shortcoming but has
its own off-by-one error which allows X to extend one line past end of
file.  For example, given a file with 5 lines:

  git blame -L5 foo  # OK, blames line 5
  git blame -L6 foo  # accepted, no error, no output, huh?
  git blame -L7 foo  # error "fatal: file foo has only 5 lines"

Fix this bug.

In order to avoid regressing "blame foo" when foo is an empty file, the
fix is slightly more complicated than changing '<' to '<='.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 11:54:31 -07:00
Stefan Beller
d5d09d4754 Replace deprecated OPT_BOOLEAN by OPT_BOOL
This task emerged from b04ba2bb (parse-options: deprecate OPT_BOOLEAN,
2011-09-27). All occurrences of the respective variables have
been reviewed and none of them relied on the counting up mechanism,
but all of them were using the variable as a true boolean.

This patch does not change semantics of any command intentionally.

Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 11:32:19 -07:00
Nguyễn Thái Ngọc Duy
9a08727443 remove init_pathspec() in favor of parse_pathspec()
While at there, move free_pathspec() to pathspec.c

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:09 -07:00
Nguyễn Thái Ngọc Duy
bd1928df1d remove diff_tree_{setup,release}_paths
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:09 -07:00
Junio C Hamano
ed73fe5642 Merge branch 'tr/line-log'
* tr/line-log:
  git-log(1): remove --full-line-diff description
  line-log: fix documentation formatting
  log -L: improve comments in process_all_files()
  log -L: store the path instead of a diff_filespec
  log -L: test merge of parallel modify/rename
  t4211: pass -M to 'git log -M -L...' test
  log -L: fix overlapping input ranges
  log -L: check range set invariants when we look it up
  Speed up log -L... -M
  log -L: :pattern:file syntax to find by funcname
  Implement line-history search (git log -L)
  Export rewrite_parents() for 'log -L'
  Refactor parse_loc
2013-06-02 16:00:44 -07:00
Junio C Hamano
e52e6f79cc Merge branch 'nd/pretty-formats'
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
2013-04-23 11:22:48 -07:00
Nguyễn Thái Ngọc Duy
5a10d23658 pretty: save commit encoding from logmsg_reencode if the caller needs it
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>
2013-04-18 16:28:27 -07:00
René Scharfe
de5abe9fe9 blame: handle broken commit headers gracefully
split_ident_line() can leave us with the pointers date_begin, date_end,
tz_begin and tz_end all set to NULL.  Check them before use and supply
the same fallback values as in the case of a negative return code from
split_ident_line().

The "(unknown)" is not actually shown in the output, though, because it
will be converted to a number (zero) eventually.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-17 14:50:45 -07:00
Thomas Rast
13b8f68c1f log -L: :pattern:file syntax to find by funcname
This new syntax finds a funcname matching /pattern/, and then takes from there
up to (but not including) the next funcname.  So you can say

  git log -L:main:main.c

and it will dig up the main() function and show its line-log, provided
there are no other funcnames matching 'main'.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:30:04 -07:00
Bo Yang
25ed3412f8 Refactor parse_loc
We want to use the same style of -L n,m argument for 'git log -L' as
for git-blame.  Refactor the argument parsing of the range arguments
from builtin/blame.c to the (new) file that will hold the 'git log -L'
logic.

To accommodate different data structures in blame and log -L, the file
contents are abstracted away; parse_range_arg takes a callback that it
uses to get the contents of a line of the (notional) file.

The new test is for a case that made me pause during debugging: the
'blame -L with invalid end' test was the only one that noticed an
outright failure to parse the end *at all*.  So make a more explicit
test for that.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:28:41 -07:00
Jeff King
be5c9fb904 logmsg_reencode: lazily load missing commit buffers
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>
2013-01-26 13:28:22 -08:00
Jeff King
dd0d388c44 logmsg_reencode: never return NULL
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>
2013-01-26 13:28:21 -08:00
Junio C Hamano
577f63e781 Merge branch 'ap/log-mailmap'
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
2013-01-20 17:06:53 -08:00
Junio C Hamano
90d0b8a9f0 Merge branch 'jc/blame-no-follow'
Teaches "--no-follow" option to "git blame" to disable its
whole-file rename detection.

* jc/blame-no-follow:
  blame: pay attention to --no-follow
  diff: accept --no-follow option
2013-01-14 08:15:51 -08:00
Antoine Pelisse
ea02ffa385 mailmap: simplify map_user() interface
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>
2013-01-10 12:33:08 -08:00
Antoine Pelisse
3c020bd528 Use split_ident_line to parse author and committer
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>
2013-01-07 15:59:32 -08:00
Junio C Hamano
e297cf5aff pretty: remove reencode_commit_message()
This function has only two callsites, and is a thin wrapper whose
usefulness is dubious.  When the caller needs to learn the log
output encoding, it should be able to do so by directly calling
get_log_output_encoding() and calling the underlying
logmsg_reencode() with it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-17 22:42:40 -07:00
Junio C Hamano
3d1aa56671 blame: pay attention to --no-follow
If you know your history did not have renames, or if you care only
about the history after a large rename that happened some time ago,
"git blame --no-follow $path" is a way to tell the command not to
bother about renames.

When you use -C, the lines that came from the renamed file will
still be found without the whole-file rename detection, so it is not
all that interesting either way, though.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-21 13:52:25 -07:00
Junio C Hamano
992311cf86 Merge branch 'jc/maint-blame-no-such-path'
"git blame MAKEFILE" run in a history that has "Makefile" but not
"MAKEFILE" should say "No such file MAKEFILE in HEAD", but got
confused on a case insensitive filesystem and failed to do so.

Even during a conflicted merge, "git blame $path" always meant to
blame uncommitted changes to the "working tree" version; make it
more useful by showing cleanly merged parts as coming from the other
branch that is being merged.

* jc/maint-blame-no-such-path:
  blame: allow "blame file" in the middle of a conflicted merge
  blame $path: avoid getting fooled by case insensitive filesystems
2012-09-17 15:52:32 -07:00
Junio C Hamano
9aeaab6811 blame: allow "blame file" in the middle of a conflicted merge
"git blame file" has always meant "find the origin of each line of
the file in the history leading to HEAD, oh by the way, blame the
lines that are modified locally to the working tree".

This teaches "git blame" that during a conflicted merge, some
uncommitted changes may have come from the other history that is
being merged.

The verify_working_tree_path() function introduced in the previous
patch to notice a typo in the filename (primarily on case insensitive
filesystems) has been updated to allow a filename that does not exist
in HEAD (i.e. the tip of our history) as long as it exists one of the
commits being merged, so that a "we deleted, the other side modified"
case tracks the history of the file in the history of the other side.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-11 14:30:03 -07:00
Junio C Hamano
738c218760 Merge branch 'tr/void-diff-setup-done' into maint-1.7.11
* tr/void-diff-setup-done:
  diff_setup_done(): return void
2012-09-11 10:53:40 -07:00
Junio C Hamano
ffcabccf5d blame $path: avoid getting fooled by case insensitive filesystems
"git blame MAKEFILE" run in a history that has "Makefile" but not
MAKEFILE can get confused on a case insensitive filesystem, because
the check we run to see if there is a corresponding file in the
working tree with lstat("MAKEFILE") succeeds.  In addition to that
check, we have to make sure that the given path also exists in the
commit we start digging history from (i.e. "HEAD").

Note that this reveals the breakage in a test added in cd8ae20
(git-blame shouldn't crash if run in an unmerged tree, 2007-10-18),
which expects the entire merge-in-progress path to be blamed to the
working tree when it did not exist in our tree.  As it is clear in
the log message of that commit, the old breakage was that it was
causing an internal error and the fix was about avoiding it.

Just check that the command does not die an uncontrolled death.  For
this particular case, the blame should fail, as the history for the
file in that contents has not been committed yet at the point in the
test.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-10 18:42:30 -07:00
Junio C Hamano
03adeeaad6 Merge branch 'jk/maint-null-in-trees' into maint-1.7.11
"git diff" had a confusion between taking data from a path in the
working tree and taking data from an object that happens to have
name 0{40} recorded in a tree.

* jk/maint-null-in-trees:
  fsck: detect null sha1 in tree entries
  do not write null sha1s to on-disk index
  diff: do not use null sha1 as a sentinel value
2012-09-10 15:24:54 -07:00
Junio C Hamano
096bbd6537 Merge branch 'nd/i18n-parseopt-help'
A lot of i18n mark-up for the help text from "git <cmd> -h".

* nd/i18n-parseopt-help: (66 commits)
  Use imperative form in help usage to describe an action
  Reduce translations by using same terminologies
  i18n: write-tree: mark parseopt strings for translation
  i18n: verify-tag: mark parseopt strings for translation
  i18n: verify-pack: mark parseopt strings for translation
  i18n: update-server-info: mark parseopt strings for translation
  i18n: update-ref: mark parseopt strings for translation
  i18n: update-index: mark parseopt strings for translation
  i18n: tag: mark parseopt strings for translation
  i18n: symbolic-ref: mark parseopt strings for translation
  i18n: show-ref: mark parseopt strings for translation
  i18n: show-branch: mark parseopt strings for translation
  i18n: shortlog: mark parseopt strings for translation
  i18n: rm: mark parseopt strings for translation
  i18n: revert, cherry-pick: mark parseopt strings for translation
  i18n: rev-parse: mark parseopt strings for translation
  i18n: reset: mark parseopt strings for translation
  i18n: rerere: mark parseopt strings for translation
  i18n: status: mark parseopt strings for translation
  i18n: replace: mark parseopt strings for translation
  ...
2012-09-07 11:09:09 -07:00
Junio C Hamano
3b753148b6 Merge branch 'jk/maint-null-in-trees'
We do not want a link to 0{40} object stored anywhere in our objects.

* jk/maint-null-in-trees:
  fsck: detect null sha1 in tree entries
  do not write null sha1s to on-disk index
  diff: do not use null sha1 as a sentinel value
2012-08-27 11:54:28 -07:00
Junio C Hamano
9cd33bbc52 Merge branch 'tr/void-diff-setup-done'
Remove unnecessary code.

* tr/void-diff-setup-done:
  diff_setup_done(): return void
2012-08-22 11:52:27 -07:00
Nguyễn Thái Ngọc Duy
efd2a8bd38 i18n: blame: mark parseopt strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-20 12:23:15 -07:00
Thomas Rast
28452655af diff_setup_done(): return void
diff_setup_done() has historically returned an error code, but lost
the last nonzero return in 943d5b7 (allow diff.renamelimit to be set
regardless of -M/-C, 2006-08-09).  The callers were in a pretty
confused state: some actually checked for the return code, and some
did not.

Let it return void, and patch all callers to take this into account.
This conveniently also gets rid of a handful of different(!) error
messages that could never be triggered anyway.

Note that the function can still die().

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-03 12:11:07 -07:00
Jeff King
e54501004a diff: do not use null sha1 as a sentinel value
The diff code represents paths using the diff_filespec
struct. This struct has a sha1 to represent the sha1 of the
content at that path, as well as a sha1_valid member which
indicates whether its sha1 field is actually useful. If
sha1_valid is not true, then the filespec represents a
working tree file (e.g., for the no-index case, or for when
the index is not up-to-date).

The diff_filespec is only used internally, though. At the
interfaces to the diff subsystem, callers feed the sha1
directly, and we create a diff_filespec from it. It's at
that point that we look at the sha1 and decide whether it is
valid or not; callers may pass the null sha1 as a sentinel
value to indicate that it is not.

We should not typically see the null sha1 coming from any
other source (e.g., in the index itself, or from a tree).
However, a corrupt tree might have a null sha1, which would
cause "diff --patch" to accidentally diff the working tree
version of a file instead of treating it as a blob.

This patch extends the edges of the diff interface to accept
a "sha1_valid" flag whenever we accept a sha1, and to use
that flag when creating a filespec. In some cases, this
means passing the flag through several layers, making the
code change larger than would be desirable.

One alternative would be to simply die() upon seeing
corrupted trees with null sha1s. However, this fix more
directly addresses the problem (while bogus sha1s in a tree
are probably a bad thing, it is really the sentinel
confusion sending us down the wrong code path that is what
makes it devastating). And it means that git is more capable
of examining and debugging these corrupted trees. For
example, you can still "diff --raw" such a tree to find out
when the bogus entry was introduced; you just cannot do a
"--patch" diff (just as you could not with any other
corrupted tree, as we do not have any content to diff).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29 15:04:32 -07:00
Junio C Hamano
b700086d84 Merge branch 'jc/maint-blame-unique-abbrev' into maint
"git blame" did not try to make sure that the abbreviated commit
object names in its output are unique.

* jc/maint-blame-unique-abbrev:
  blame: compute abbreviation width that ensures uniqueness
2012-07-11 12:58:28 -07:00
Thomas Gummerer
b60e188c51 Strip namelen out of ce_flags into a ce_namelen field
Strip the name length from the ce_flags field and move it
into its own ce_namelen field in struct cache_entry. This
will both give us a tiny bit of a performance enhancement
when working with long pathnames and is a refactoring for
more readability of the code.

It enhances readability, by making it more clear what
is a flag, and where the length is stored and make it clear
which functions use stages in comparisions and which only
use the length.

It also makes CE_NAMEMASK private, so that users don't
mistakenly write the name length in the flags.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-11 09:42:45 -07:00
Junio C Hamano
3a335ee2da Merge branch 'jc/maint-blame-unique-abbrev'
"git blame" did not try to make sure the abbreviated commit object
names in its output are unique.

* jc/maint-blame-unique-abbrev:
  blame: compute abbreviation width that ensures uniqueness
2012-07-09 09:01:38 -07:00
Junio C Hamano
b31272f704 blame: compute abbreviation width that ensures uniqueness
Julia Lawall noticed that in linux-next repository the commit object
60d5c9f5 (shown with the default abbreviation width baked into "git
blame") in output from

  $ git blame -L 3675,3675 60d5c9f5b -- \
      drivers/staging/brcm80211/brcmfmac/wl_iw.c

is no longer unique in the repository, which results in "short SHA1
60d5c9f5 is ambiguous".

Compute the minimum abbreviation width that ensures uniqueness when
the user did not specify the --abbrev option to avoid this.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-02 00:54:19 -07:00
Ramsay Jones
85c20c304f builtin/blame.c: Fix a "Using plain integer as NULL pointer" warning
Plain gcc may not but sparse catches and complains about this sort of
stuff.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-14 10:19:42 -07:00
René Scharfe
4b4132fd89 blame: factor out helper for calling xdi_diff()
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-09 14:08:27 -07:00
René Scharfe
5d23ec7664 blame: use hunk_func(), part 2
Use handle_split_cb() directly as hunk_func() callback, without going
through xdi_diff_hunks().

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-09 14:03:23 -07:00
René Scharfe
0af596c6ff blame: use hunk_func(), part 1
Use blame_chunk_cb() directly as hunk_func() callback, without detour
through xdi_diff_hunks().

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-09 14:03:03 -07:00
Junio C Hamano
089c0ca8b6 Merge branch 'jc/maint-blame-minimal' into maint
"git blame" started missing quite a few changes from the origin since we
stopped using the diff minimalization by default in v1.7.2 era.

Teach "--minimal" option to "git blame" to work around this regression.

* jc/maint-blame-minimal:
  blame: accept --need-minimal
2012-05-01 21:11:49 -07:00
Junio C Hamano
9d76db4e67 Merge branch 'jc/maint-blame-minimal'
"git blame" started missing quite a few changes from the origin since we
stopped using the diff minimalization by default in v1.7.2 era.

* jc/maint-blame-minimal:
  blame: accept --need-minimal
2012-04-23 12:58:23 -07:00
Junio C Hamano
059a500d25 blame: accept --need-minimal
Between v1.7.1 and v1.7.2, 582aa00bdf switched the default "diff"
invocation not to use XDF_NEED_MINIMAL, but this breaks "git blame"
rather badly.

Allow the command line option to ask for an extra careful matching.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-11 13:11:55 -07:00
Junio C Hamano
4d9e079e82 Merge branch 'zj/decimal-width'
* zj/decimal-width:
  make lineno_width() from blame reusable for others

Conflicts:
	cache.h
	pager.c
2012-02-20 00:15:11 -08:00
Zbigniew Jędrzejewski-Szmek
ec7ff5ba27 make lineno_width() from blame reusable for others
builtin/blame.c has a helper function to compute how many columns
we need to show a line-number, whose implementation is reusable as
a more generic helper function to count the number of columns
necessary to show any cardinal number.

Rename it to decimal_width(), move it to pager.c and export it for
use by future callers.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-14 16:16:19 -08:00
Jeff King
6680a0874f drop odd return value semantics from userdiff_config
When the userdiff_config function was introduced in be58e70
(diff: unify external diff and funcname parsing code,
2008-10-05), it used a return value convention unlike any
other config callback. Like other callbacks, it used "-1" to
signal error. But it returned "1" to indicate that it found
something, and "0" otherwise; other callbacks simply
returned "0" to indicate that no error occurred.

This distinction was necessary at the time, because the
userdiff namespace overlapped slightly with the color
configuration namespace. So "diff.color.foo" could mean "the
'foo' slot of diff coloring" or "the 'foo' component of the
"color" userdiff driver". Because the color-parsing code
would die on an unknown color slot, we needed the userdiff
code to indicate that it had matched the variable, letting
us bypass the color-parsing code entirely.

Later, in 8b8e862 (ignore unknown color configuration,
2009-12-12), the color-parsing code learned to silently
ignore unknown slots. This means we no longer need to
protect userdiff-matched variables from reaching the
color-parsing code.

We can therefore change the userdiff_config calling
convention to a more normal one. This drops some code from
each caller, which is nice. But more importantly, it reduces
the cognitive load for readers who may wonder why
userdiff_config is unlike every other config callback.

There's no need to add a new test confirming that this
works; t4020 already contains a test that sets
diff.color.external.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07 10:44:54 -08:00
Junio C Hamano
8311158c66 Merge branch 'maint-1.7.7' into maint
* maint-1.7.7:
  Git 1.7.7.5
  Git 1.7.6.5
  blame: don't overflow time buffer
  fetch: create status table using strbuf
  checkout,merge: loosen overwriting untracked file check based on info/exclude
  cast variable in call to free() in builtin/diff.c and submodule.c
  apply: get rid of useless x < 0 comparison on a size_t type

Conflicts:
	Documentation/git.txt
	GIT-VERSION-GEN
	RelNotes
	builtin/fetch.c
2011-12-13 21:58:51 -08:00
Jeff King
c3ea051544 blame: don't overflow time buffer
When showing the raw timestamp, we format the numeric
seconds-since-epoch into a buffer, followed by the timezone
string. This string has come straight from the commit
object. A well-formed object should have a timezone string
of only a few bytes, but we could be operating on data
pushed by a malicious user.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13 21:09:06 -08:00
Junio C Hamano
92622e6214 Merge branch 'ss/blame-textconv-fake-working-tree'
* ss/blame-textconv-fake-working-tree:
  blame.c: Properly initialize strbuf after calling textconv_object(), again
2011-11-07 16:43:19 -08:00
Sebastian Schuberth
8518088fe8 blame.c: Properly initialize strbuf after calling textconv_object(), again
2564aa4 started to initialize buf.alloc, but that should actually be one
more byte than the string length due to the trailing \0. Also, do not
modify buf.alloc out of the strbuf code. Use the existing strbuf_attach
instead.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-07 16:42:57 -08:00
Junio C Hamano
b919f8404a Merge branch 'ss/blame-textconv-fake-working-tree'
* ss/blame-textconv-fake-working-tree:
  (squash) test for previous
  blame.c: Properly initialize strbuf after calling, textconv_object()

Conflicts:
	t/t8006-blame-textconv.sh
2011-11-01 15:20:28 -07:00
Sebastian Schuberth
2564aa48ce blame.c: Properly initialize strbuf after calling, textconv_object()
For a plain string where only the length is known, strbuf.alloc needs to
be initialized to the length. Otherwise strbuf.alloc is 0 and a later
call to strbuf_setlen() will fail.

This bug surfaced when calling git blame under Windows on a *.doc file.
The *.doc file is converted to plain text by antiword via the textconv
mechanism. However, the plain text returned by antiword contains DOS line
endings instead of Unix line endings which triggered the strbuf_setlen()
which previous to this patch failed.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-28 08:41:56 -07:00
Jeff King
ed747dd521 blame: add --line-porcelain output format
This is just like --porcelain, except that we always output
the commit information for each line, not just the first
time it is referenced. This can make quick and dirty scripts
much easier to write; see the example added to the blame
documentation.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09 15:27:50 -07:00
Jeff King
e86226e340 blame: refactor porcelain output
This is in preparation for adding more porcelain output
options. The three changes are:

  1. emit_porcelain now receives the format option flags

  2. emit_one_suspect_detail takes an optional "repeat"
     parameter to suppress the "show only once" behavior

  3. The code for emitting porcelain suspect is factored
     into its own function for repeatability.

There should be no functional changes.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09 15:27:32 -07:00
Junio C Hamano
2190a43c42 Merge branch 'js/blame-parsename'
* js/blame-parsename:
  t/annotate-tests: Use echo & cat instead of sed
  blame: tolerate bogus e-mail addresses a bit better
2011-05-06 10:50:32 -07:00
Josh Stone
9b01f0038b blame: tolerate bogus e-mail addresses a bit better
The names and e-mails are sanitized by fmt_ident() when creating commits,
so that they do not contain "<" nor ">", and the "committer" and "author"
lines in the commit object will always be in the form:

    ("author" | "committer") name SP "<" email ">" SP timestamp SP zone

When parsing the email part out, the current code looks for SP starting
from the end of the email part, but the author could obfuscate the address
as "author at example dot com".

We should instead look for SP followed by "<", to match the logic of the
side that formats these lines.

Signed-off-by: Josh Stone <jistone@redhat.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 11:09:42 -07:00
Namhyung Kim
84393bfd73 blame: add --abbrev command line option and make it honor core.abbrev
If user sets config.abbrev option, use it as if --abbrev was given.  This
is the default value and user can override different abbrev length by
specifying the --abbrev=N command line option.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-05 20:08:41 -07:00
Jonathan Nieder
9cba13ca5d standardize brace placement in struct definitions
In a struct definitions, unlike functions, the prevailing style is for
the opening brace to go on the same line as the struct name, like so:

 struct foo {
	int bar;
	char *baz;
 };

Indeed, grepping for 'struct [a-z_]* {$' yields about 5 times as many
matches as 'struct [a-z_]*$'.

Linus sayeth:

 Heretic people all over the world have claimed that this inconsistency
 is ...  well ...  inconsistent, but all right-thinking people know that
 (a) K&R are _right_ and (b) K&R are right.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-16 12:49:02 -07:00
Junio C Hamano
6e67619d0c Merge branch 'jn/parse-options-extra'
* jn/parse-options-extra:
  update-index: migrate to parse-options API
  setup: save prefix (original cwd relative to toplevel) in startup_info
  parse-options: make resuming easier after PARSE_OPT_STOP_AT_NON_OPTION
  parse-options: allow git commands to invent new option types
  parse-options: never suppress arghelp if LITERAL_ARGHELP is set
  parse-options: do not infer PARSE_OPT_NOARG from option type
  parse-options: sanity check PARSE_OPT_NOARG flag
  parse-options: move NODASH sanity checks to parse_options_check
  parse-options: clearer reporting of API misuse
  parse-options: Don't call parse_options_check() so much
2010-12-12 21:49:53 -08:00
Stephen Boyd
9ca1169fd9 parse-options: Don't call parse_options_check() so much
parse_options_check() is being called for each invocation of
parse_options_step which can be quite a bit for some commands. The
commit introducing this function cb9d398 (parse-options: add
parse_options_check to validate option specs., 2009-06-09) had the
correct motivation and explicitly states that parse_options_check()
should be called from parse_options_start(). However, the implementation
differs from the motivation. Fix it.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-06 16:51:36 -08:00
Junio C Hamano
4ef927a995 Merge branch 'kb/blame-author-email'
* kb/blame-author-email:
  blame: Add option to show author email instead of name

Conflicts:
	t/annotate-tests.sh
2010-11-29 17:52:32 -08:00
Junio C Hamano
dd9d290bc9 Merge branch 'ks/no-textconv-symlink'
* ks/no-textconv-symlink:
  blame,cat-file --textconv: Don't assume mode is ``S_IFREF | 0664''
  blame,cat-file: Demonstrate --textconv is wrongly running converter on symlinks
  blame,cat-file: Prepare --textconv tests for correctly-failing conversion program
2010-11-17 14:59:27 -08:00
Kevin Ballard
1b8cdce94f blame: Add option to show author email instead of name
Add a new option -e (or --show-email) to git-blame that will display
the author's email instead of name on each line. This option works
for both git-blame and git-annotate.

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-19 12:00:28 -07:00
Kirill Smelkov
900647104e blame,cat-file --textconv: Don't assume mode is ``S_IFREF | 0664''
We need to get the correct mode when blame reads the source from the
working tree, the index, or trees.  This allows us to omit running
textconv filters on symbolic links.

Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru>
Reviewed-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29 16:53:25 -07:00
Junio C Hamano
bc38219f50 Merge branch 'maint'
* maint:
  Typos in code comments, an error message, documentation
2010-08-22 20:18:37 -07:00
Ralf Wildenhues
22e5e58a3c Typos in code comments, an error message, documentation
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-22 13:25:08 -07:00
Junio C Hamano
165dc789d5 Merge branch 'cc/find-commit-subject'
* cc/find-commit-subject:
  blame: use find_commit_subject() instead of custom code
  merge-recursive: use find_commit_subject() instead of custom code
  bisect: use find_commit_subject() instead of custom code
  revert: rename variables related to subject in get_message()
  revert: refactor code to find commit subject in find_commit_subject()
  revert: fix off by one read when searching the end of a commit subject
2010-08-18 12:46:55 -07:00
Christian Couder
ad98a58b3d blame: use find_commit_subject() instead of custom code
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-23 16:12:48 -07:00
Junio C Hamano
cf4403a010 Merge branch 'cp/textconv-cat-file'
* cp/textconv-cat-file:
  git-cat-file.txt: Document --textconv
  t/t8007: test textconv support for cat-file
  textconv: support for cat_file
  sha1_name: add get_sha1_with_context()
2010-06-27 12:07:55 -07:00
Junio C Hamano
4af574dbdc Merge branch 'ab/blame-textconv'
* ab/blame-textconv:
  t/t8006: test textconv support for blame
  textconv: support for blame
  textconv: make the API public

Conflicts:
	diff.h
2010-06-27 12:07:44 -07:00
Junio C Hamano
8d676d85f7 Merge branch 'gv/portable'
* 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
2010-06-21 06:02:44 -07:00
Junio C Hamano
60335534a6 Merge branch 'rs/diff-no-minimal' into maint
* rs/diff-no-minimal:
  git diff too slow for a file
2010-06-21 05:38:50 -07:00
Clément Poulain
e5fba602e5 textconv: support for cat_file
Make the textconv_object function public, and add --textconv option to cat-file
to perform conversion on blob objects. Using --textconv implies that we are
working on a blob.
As files drivers need to be initialized, a new config is required in addition
to git_default_config. Therefore git_cat_file_config() is introduced

Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-18 12:57:21 -07:00
Axel Bonnet
3b8a12e8f8 textconv: support for blame
This patches enables to perform textconv with blame if a textconv driver is
available fos the file.

The main task is performed by the textconv_object function which prepares
diff_filespec and if possible converts the file using diff textconv API.
Only regular files are converted, so the mode of diff_filespec is faked.

Textconv conversion is enabled by default (equivalent to the option
--textconv), since blaming binary files is useless in most cases.
The option --no-textconv is used to disable textconv conversion.

The declarations of several functions are modified to give access to a
diff_options, in order to know whether the textconv option is activated or not.

Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-18 09:41:01 -07:00
Junio C Hamano
39b5977b13 Merge branch 'rs/diff-no-minimal'
* rs/diff-no-minimal:
  git diff too slow for a file
2010-06-13 11:20:46 -07:00
Tor Arntsen
2543d9b609 Change C99 comments to old-style C comments
Signed-off-by: Tor Arntsen <tor@spacetec.no>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-07 15:50:21 -07:00
Gary V. Vaughan
66dbfd55e3 Rewrite dynamic structure initializations to runtime assignment
Unfortunately, there are still plenty of production systems with
vendor compilers that choke unless all compound declarations can be
determined statically at compile time, for example hpux10.20 (I can
provide a comprehensive list of our supported platforms that exhibit
this problem if necessary).

This patch simply breaks apart any compound declarations with dynamic
initialisation expressions, and moves the initialisation until after
the last declaration in the same block, in all the places necessary to
have the offending compilers accept the code.

Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-31 16:59:26 -07:00
Junio C Hamano
3a27f415df Merge branch 'maint'
* maint:
  don't use default revision if a rev was specified
  for_each_recent_reflog_ent(): use strbuf, fix offset handling
  t/Makefile: remove test artifacts upon "make clean"
  blame: fix indent of line numbers
2010-03-13 21:31:42 -08:00
Linus Torvalds
81b50f3ce4 Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 14:29:41 -08:00
Renamed from builtin-blame.c (Browse further)