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#!/bin/sh
Version='diffdir-0.1'
diffdir() {
[ -f "/etc/backup/ignore" ] && xf=--exclude-from=/etc/backup/ignore || xf=
rsync -aDSniv $xf --delete $Optx "$2/" "$1" |
awk -v OptF="${OptF#./}" -v prefix=$prefix '
NF == 0 {exit}
NR < 2 || /\/*\.dv$/ || /\/$/ {next}
# Match an itemized status for all versions of rsync -i
$1 !~ /^[<>ch.*][fdLDS+][.+?cstpoguaxz]+$/ {next}
{key = $1; file = substr($0, length(key) + 2)}
OptF && OptF != file {next}
key == "*deleting" {print "deleted " prefix file; next}
substr(key, 3, 7) == "+++++++" {print "created " prefix file; next}
{ # Avoid false positive if only mtime is changed.
of = "'$1'/" file; gsub("'\''", "'\'\\\\\'\''", of)
nf = "'$2'/" file; gsub("'\''", "'\'\\\\\'\''", nf)
if (substr(key, 2, 1) == "L") { # Symlink
src = target = file
sub(/.* -> /, "", target);
sub(/ -> .*/, "", src);
"readlink '$2'/" src | getline otarget
if (target != otarget)
print "changed " src
} else if (system("cmp -s '\''" of "'\'\ \''" nf "'\''"))
print "changed " file
}'
# Or: scan key for file/link size, checksum or permission change
# rsync -c is required
#key ~ /[cps]/ { print "changed " prefix file }'
}
while getopts :V opt; do
case $opt in
(V) echo "$Version"; exit ;;
(*) echo "Usage: $0 [-V]"; exit 1 ;;
esac
done
shift $((OPTIND - 1))
diffdir "$1" "$2"
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