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We forgot to make sure that there is no more than one pattern
parameter. Also when looking for files in a directory called
'--others', it passed that path limiter without preceding the
end-of-options marker '--' to underlying git-ls-files, which
misunderstood it as one of its options instead.
$ git grep --others -e Meta/Make Meta
$ git grep -o -e Meta/Make Meta
$ git grep -o Meta/Make Meta
look for a string "Meta/Make" from untracked files in Meta/
directory.
$ git grep Meta/Make --others
looks for the same string from tracked files in ./--others
directory.
On the other hand,
$ git grep -e Meta/Make --others
does not have a freestanding pattern, so everybody is parameter
and there is no path specifier. It looks for the string in all
the untracked files without any path limiter.
[jc: updated with usability enhancements and documentation
cleanups from Sean.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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For some reason I've done a "git grep" twice with no pattern, which is
really irritating, since it just grep everything. If I actually wanted
that, I could do "git grep ^" or something.
So add a "usage" message if the pattern is empty.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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People typically say 'grep -e $pattern' because $pattern has a leading
dash which would be mistaken as a grep flag. Make sure we pass -e in
front of $pattern when we invoke grep.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This allows any arbitrary flags to "grep", and knows about the few
special grep flags that take an argument too.
It also allows some flags for git-ls-files, although their usefulness
is questionable.
With this, something line
git grep -w -1 pattern
works, without the script enumerating every possible flag.
[jc: this is the version Linus sent out after I showed him a
barf-o-meter test version that avoids shell arrays. He must
have typed this version blindly, since he said:
I'm not barfing, but that's probably because my brain just shut
down and is desperately trying to gouge my eyes out with a spoon.
I slightly fixed it to catch the remaining arguments meant to be
given git-ls-files.]
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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Very convenient shorthand for
git-ls-files [file-patterns] | xargs grep <pattern>
which I tend to do all the time.
Yes, it's trivial, but it's really nice. I can do
git grep '\<some_variable\>' arch/i386 include/asm-i386
and it does exactly what you'd think it does. And since it just uses the
normal git-ls-files file patterns, you can do things like
git grep something 'include/*.h'
and it will search all header files under the include/ subdirectory.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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