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git/git-grep.sh

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[PATCH] Add "git grep" helper 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>
2005-09-13 03:06:10 +08:00
#!/bin/sh
Improve "git grep" flags handling 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>
2005-09-13 07:46:53 +08:00
#
# Copyright (c) Linus Torvalds, 2005
#
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
USAGE='[<option>...] [-e] <pattern> [<path>...]'
Trivial usage string clean-up Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-14 06:30:31 +08:00
SUBDIRECTORY_OK='Yes'
. git-sh-setup
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
got_pattern () {
if [ -z "$no_more_patterns" ]
then
pattern="$1" no_more_patterns=yes
else
die "git-grep: do not specify more than one pattern"
fi
}
no_more_patterns=
Improve "git grep" flags handling 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>
2005-09-13 07:46:53 +08:00
pattern=
flags=()
git_flags=()
while : ; do
case "$1" in
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
-o|--cached|--deleted|--others|--killed|\
--ignored|--modified|--exclude=*|\
Improve "git grep" flags handling 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>
2005-09-13 07:46:53 +08:00
--exclude-from=*|\--exclude-per-directory=*)
git_flags=("${git_flags[@]}" "$1")
;;
-e)
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
got_pattern "$2"
Improve "git grep" flags handling This allows any arbitrary flags to "grep", and knows about the few special grep flags that take an argument too. It also allows some flags for git-ls-files, although their usefulness is questionable. With this, something line git grep -w -1 pattern works, without the script enumerating every possible flag. [jc: this is the version Linus sent out after I showed him a barf-o-meter test version that avoids shell arrays. He must have typed this version blindly, since he said: I'm not barfing, but that's probably because my brain just shut down and is desperately trying to gouge my eyes out with a spoon. I slightly fixed it to catch the remaining arguments meant to be given git-ls-files.] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-13 07:46:53 +08:00
shift
;;
-A|-B|-C|-D|-d|-f|-m)
flags=("${flags[@]}" "$1" "$2")
shift
;;
--)
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
# The rest are git-ls-files paths
Improve "git grep" flags handling 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>
2005-09-13 07:46:53 +08:00
shift
break
;;
-*)
flags=("${flags[@]}" "$1")
;;
*)
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
if [ -z "$no_more_patterns" ]
then
got_pattern "$1"
Improve "git grep" flags handling 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>
2005-09-13 07:46:53 +08:00
shift
fi
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
[ "$1" = -- ] && shift
Improve "git grep" flags handling This allows any arbitrary flags to "grep", and knows about the few special grep flags that take an argument too. It also allows some flags for git-ls-files, although their usefulness is questionable. With this, something line git grep -w -1 pattern works, without the script enumerating every possible flag. [jc: this is the version Linus sent out after I showed him a barf-o-meter test version that avoids shell arrays. He must have typed this version blindly, since he said: I'm not barfing, but that's probably because my brain just shut down and is desperately trying to gouge my eyes out with a spoon. I slightly fixed it to catch the remaining arguments meant to be given git-ls-files.] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-13 07:46:53 +08:00
break
;;
esac
shift
[PATCH] Add "git grep" helper Very convenient shorthand for git-ls-files [file-patterns] | xargs grep <pattern> which I tend to do all the time. Yes, it's trivial, but it's really nice. I can do git grep '\<some_variable\>' arch/i386 include/asm-i386 and it does exactly what you'd think it does. And since it just uses the normal git-ls-files file patterns, you can do things like git grep something 'include/*.h' and it will search all header files under the include/ subdirectory. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-13 03:06:10 +08:00
done
Disallow empty pattern in "git grep" For some reason I've done a "git grep" twice with no pattern, which is really irritating, since it just grep everything. If I actually wanted that, I could do "git grep ^" or something. So add a "usage" message if the pattern is empty. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-17 01:38:46 +08:00
[ "$pattern" ] || {
Trivial usage string clean-up Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-14 06:30:31 +08:00
usage
Disallow empty pattern in "git grep" 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>
2005-11-17 01:38:46 +08:00
}
git-grep: clarification on parameters. 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>
2006-01-21 07:00:12 +08:00
git-ls-files -z "${git_flags[@]}" -- "$@" |
xargs -0 grep "${flags[@]}" -e "$pattern" --
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