plan9fox/rc/bin/g

#!/bin/rc
rfork e
nl='
'
flags=()
recurse=()
files=()
while(! ~ $#* 1 && ~ $1 -* && ! ~ $1 --){
	if(~ $1 '-n')
		recurse=-n1
	if not
		flags=($flags $1);
	shift
}
if(~ $1 --)
	shift
if(~ $#* 0) {
	echo 'usage: g [flags] pattern [files]' >[1=2]
	exit usage
}
pattern=$1
shift

suffixes='\.([bcChlmsy]|asm|awk|cc|cgi|cpp|cs|go|goc|ha|hs|java|lua|lx|mk|ml|mli|ms|myr|pl|py|rc|sh|tex|xy)$'
fullnames='(^|/)mkfile$'
repodirs='(^|/)(.git|.hg)($|/)'
switch($#*){
case 0
	walk -f $recurse | grep -e $fullnames -e $suffixes >[2]/dev/null
case *
	for(f in $*){
		if(test -d $f)
			walk -f $recurse -- $f \
				| grep -e $fullnames -e $suffixes >[2]/dev/null
		if not
			echo $f
	}
} | grep -v $repodirs | xargs grep -n $flags -- $pattern /dev/null
Remove trailing whitespace. 2019-06-05 05:47:07 +00:00			`#!/bin/rc`
g: dont pollute the environment (thanks BurnZeZ) 2016-03-13 21:34:08 +00:00			`rfork e`
Make 'g' grep recursively by default. 2019-06-05 05:36:32 +00:00			`nl='`
			`'`
			`flags=()`
			`recurse=()`
g: initialize files env var 2020-12-19 12:33:11 +00:00			`files=()`
Make 'g' grep recursively by default. 2019-06-05 05:36:32 +00:00			`while(! ~ $#* 1 && ~ $1 -* && ! ~ $1 --){`
			`if(~ $1 '-n')`
			`recurse=-n1`
			`if not`
			`flags=($flags $1);`
Remove trailing whitespace. 2019-06-05 05:47:07 +00:00			`shift`
			`}`
			`if(~ $1 --)`
			`shift`
g: use xargs instead of finding complete file list before greping 2022-01-01 10:26:14 +00:00			`if(~ $#* 0) {`
			`echo 'usage: g [flags] pattern [files]' >[1=2]`
			`exit usage`
			`}`
			`pattern=$1`
			`shift`
add rc scripts ", "" and g from rsc 2011-11-21 16:39:34 +00:00
g: add .ha (Hare) 2022-05-15 08:21:34 +00:00			`suffixes='\.([bcChlmsy]\|asm\|awk\|cc\|cgi\|cpp\|cs\|go\|goc\|ha\|hs\|java\|lua\|lx\|mk\|ml\|mli\|ms\|myr\|pl\|py\|rc\|sh\|tex\|xy)$'`
g: filter directory arguments When searching directories recursively, it's still desirable to filter the contents by the file pattern, so that 'g foo /sys/src' doesn't end up searching for foo within .$O files. Files passed explicitly are still searched, so for the old behavior, just use walk: g foo `{walk -f $dir} 2020-11-22 05:23:46 +00:00			`fullnames='(^\|/)mkfile$'`
g: show all file names when grepping When grep gets a single file argument, it does not show the file name. This makes seeing the file name in the output of 'g' difficult. Pass a spare /dev/null to each invocation of g, in order to force it to show the file name. 2022-02-05 00:40:45 +00:00			`repodirs='(^\|/)(.git\|.hg)($\|/)'`
Remove trailing whitespace. 2019-06-05 05:47:07 +00:00			`switch($#*){`
			`case 0`
g: use xargs instead of finding complete file list before greping 2022-01-01 10:26:14 +00:00			`walk -f $recurse \| grep -e $fullnames -e $suffixes >[2]/dev/null`
Remove trailing whitespace. 2019-06-05 05:47:07 +00:00			`case *`
g: filter directory arguments When searching directories recursively, it's still desirable to filter the contents by the file pattern, so that 'g foo /sys/src' doesn't end up searching for foo within .$O files. Files passed explicitly are still searched, so for the old behavior, just use walk: g foo `{walk -f $dir} 2020-11-22 05:23:46 +00:00			`for(f in $*){`
			`if(test -d $f)`
g: use xargs instead of finding complete file list before greping 2022-01-01 10:26:14 +00:00			`walk -f $recurse -- $f \`
			`\| grep -e $fullnames -e $suffixes >[2]/dev/null`
g: filter directory arguments When searching directories recursively, it's still desirable to filter the contents by the file pattern, so that 'g foo /sys/src' doesn't end up searching for foo within .$O files. Files passed explicitly are still searched, so for the old behavior, just use walk: g foo `{walk -f $dir} 2020-11-22 05:23:46 +00:00			`if not`
g: use xargs instead of finding complete file list before greping 2022-01-01 10:26:14 +00:00			`echo $f`
g: filter directory arguments When searching directories recursively, it's still desirable to filter the contents by the file pattern, so that 'g foo /sys/src' doesn't end up searching for foo within .$O files. Files passed explicitly are still searched, so for the old behavior, just use walk: g foo `{walk -f $dir} 2020-11-22 05:23:46 +00:00			`}`
g: show all file names when grepping When grep gets a single file argument, it does not show the file name. This makes seeing the file name in the output of 'g' difficult. Pass a spare /dev/null to each invocation of g, in order to force it to show the file name. 2022-02-05 00:40:45 +00:00			`} \| grep -v $repodirs \| xargs grep -n $flags -- $pattern /dev/null`