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The earlier one to use external grep missed some often used options.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It's not perfect, but it gets the "git grep some-random-string" down to
the good old half-a-second range for the kernel.
It should convert more of the argument flags for "grep", that should be
trivial to expand (I did a few just as an example). It should also bother
to try to return the right "hit" value (which it doesn't, right now - the
code is kind of there, but I didn't actually bother to do it _right_).
Also, right now it _just_ limits by number of arguments, but it should
also strictly speaking limit by total argument size (ie add up the length
of the filenames, and do the "exec_grep()" flush call if it's bigger than
some random value like 32kB).
But I think that it's _conceptually_ doing all the right things, and it
seems to work. So maybe somebody else can do some of the final polish.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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I mistyped
git grep next -e '"^@"' '*.c'
and got many hits that contain "next" without complaint.
Obviously what I meant to say was:
git grep -e '"^@"' next -- '*.c'
This tightens the argument parsing rule a bit:
- All "grep" parameters should come first;
- If there is no -e nor -f to specify pattern, the first non
option string is the parameter;
- After that, zero or more revs can follow.
- An optional '--' can be present, and is skipped.
- All the rest are pathspecs. If '--' was not there, they must
be paths that exist in the working tree.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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It barfed and segfaulted with an incomplete line.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The earlier code descended into Documentation/technical when
given "Documentation/how*" as the pattern, which was too loose.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Grep may want to grok multiple revisions, but it does not make
much sense to walk revisions while doing so. This stops calling
the code to parse parameters for the revision walker. The
parameter parsing for the optional "-e" option becomes a lot
simpler with it as well.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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This tweaks the pathspec wildcard used in builtin-grep to match
that of ls-files. With this:
git grep -e DEBUG -- '*/Kconfig*'
would work like the shell script version, and you could even do:
git grep -e DEBUG --cached -- '*/Kconfig*' ;# from index
git grep -e DEBUG v2.6.12 -- '*/Kconfig*' ;# from rev
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This attempts to set up built-in "git grep" to further reduce
our dependence on the shell, while at the same time optionally
allowing to run grep against object database. You could do
funky things like these:
git grep --cached -e pattern ;# grep from index
git grep -e pattern master ;# or in a rev
git grep -e pattern master next ;# or in multiple revs
git grep -e pattern pu^@ ;# even like this with an
;# extension from another topic ;-)
git grep -e pattern master..next ;# or even from rev ranges
git grep -e pattern master~20:Documentation
;# or an arbitrary tree
git grep -e pattern next:git-commit.sh
;# or an arbitrary blob
Right now, it does not understand and/or obey many options grep
should accept, and the pattern must be given with -e option due
to the way the parameter parser is structured, both of which
obviously need to be fixed for usability.
But this is going in the right direction. The shell script
version is one of the worst Portability offender in the git
barebone Porcelainish; it uses xargs -0 to pass paths around and
shell arrays to sift flags and parameters.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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