shithub: riscv

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g: use xargs instead of finding complete file list before greping

--- a/rc/bin/g

+++ b/rc/bin/g

@@ -14,25 +14,24 @@

 }

 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|hs|java|lua|lx|mk|ml|mli|ms|myr|pl|py|rc|sh|tex|xy)$'

 fullnames='(^|/)mkfile$'

 switch($#*){

 case 0

-	echo 'usage: g [flags] pattern [files]' >[1=2]

-	exit usage

-case 1

-	pattern=$1

-	files=`$nl{walk -f $recurse | grep -e $fullnames -e $suffixes >[2]/dev/null}

+	walk -f $recurse | grep -e $fullnames -e $suffixes >[2]/dev/null

 case *

-	pattern=$1

-	shift

 	for(f in $*){

 		if(test -d $f)

-			files=($files `$nl{walk -f $recurse -- $f \

-				| grep -e $fullnames -e $suffixes >[2]/dev/null})

+			walk -f $recurse -- $f \

+				| grep -e $fullnames -e $suffixes >[2]/dev/null

 		if not

-			files=($files $f)

+			echo $f

 	}

-}

-grep -n $flags -- $pattern $files /dev/null

+} | xargs grep -n $flags -- $pattern