shithub: rc

ref: 4ceae83df9e48cf3a950365aaf6e31a49cf62cfe
dir: /bin/syncab/

#!/bin/rc
rfork n
nomtime=0
if(~ $1 -m){
	nomtime=1
	shift
}
if(! ~ $#* 2){
	echo usage: $0 [-m] left right
	exit usage >[1=2]
}

ref=$1
old=$2
derp -t $ref $ref $old |\
	awk \
	-F'	' \
	-v 'ref='^$ref \
	-v 'old='^$old \
	-v 'nomtime='^$nomtime \
'
BEGIN{
	rm["na"] = rm["dn"] = rm["dm!"] = 1
	if(nomtime)
		nocp["nm"] = 1
}
{
	gsub("\''", "\''\''", $2)
	if($1 in rm)
		ls["rm"] = "''" old "/" $2 "'' " ls["rm"]
	else if(! ($1 in nocp))
		ls["cp"] = ls["cp"] " " "''" $2 "''"
	cnt[$1]++
}
END{
	for(i in cnt)
		print "#" i, cnt[i]
	if("rm" in ls)
		print "rm", ls["rm"]
	if("cp" in ls)
		print "@{cd", ref, "; tar c", ls["cp"], "} | @{cd", old, "; tar xT}"
}
'