1 files changed, 120 insertions, 0 deletions
diff --git a/shar.sh b/shar.sh
new file mode 100755
index 0000000..c7a532c
--- /dev/null
+++ b/shar.sh
@@ -0,0 +1,120 @@
+#!/bin/sh
+# Modified version of https://shiz.me/junk/code/fun/shar.sh
+# The generated shell archive is automatically extracted to a
+# temporary directory and the first archive member is executed.
+set -e
+
+if test $# -lt 2 ; then
+	echo "usage: $0 <output> <files>"
+	exit 1
+fi
+
+save() {
+	for i ; do
+		printf "%s\n" "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"
+	done
+	echo " "
+}
+
+octal_mode() {
+	local mode
+
+	mode="$(ls -ld "$1" | awk '{ print $1 }' | tr '[A-Z]' '-' | cut -c2-)"
+	for i in 1 2 3 ; do
+		i=0
+		case "$mode" in r??*) i=$((i + 4)) ;; esac
+		case "$mode" in ?w?*) i=$((i + 2)) ;; esac
+		case "$mode" in ??-*) ;; ???*) i=$((i + 1)) ;; esac
+		printf "%d" "$i"
+		mode=$(echo "$mode" | cut -c4-)
+	done
+}
+
+out=$1
+tmpout=$1.tmp
+exe=$2
+shift
+
+rm -f "$tmpout"
+for f ; do
+	if test -f "$f" ; then
+		cat "$f" >> "$tmpout"
+	fi
+done
+trap 'rm "$tmpout"' EXIT
+
+clear=
+
+for f ; do
+	if test -z "$clear" ; then
+		set --
+		clear=1
+	fi
+
+	mode=$(octal_mode "$f")
+	if test -f "$f" ; then
+		size=$(wc -c "$f" | awk '{ print $1 }')
+		echo "adding: $f (mode $mode, $size bytes)"
+		set -- "$@" "f+$mode+$size:$f"
+	elif test -d "$f" ; then
+		echo "adding directory: $f (mode $mode)"
+		set -- "$@" "d+$mode:$f"
+	else
+		echo "can't add unknown file type $f" >&2
+	fi
+done
+
+cat >"$out"<<HEADER
+#!/bin/sh
+set -e
+
+outdir="\$(mktemp -d -p "\${TMPDIR:-/tmp}" .unshar-XXXXXX)"
+if test \$? -ne 0 -o ! -d "\$outdir" ; then
+	echo "failed to create temporary directory"
+	exit 1
+fi
+trap 'rm -rf "\$outdir"' EXIT INT QUIT TERM HUP
+argc=\$#
+
+self="\$0"
+set -- $(save "$@") "\$@"
+
+exec 3<"\$self"
+while read -r l ; do
+	test "\$l" = "exit 0;" && break
+done <&3
+
+while test \$# -gt \$argc ; do
+	file="\$1"
+	shift
+	meta="\${file%%:*}"
+	fn="\${file#*:}"
+	type="\${meta%%+*}"
+	meta="\${meta#*+}"
+	mode="\${meta%%+*}"
+	size="\${meta#*+}"
+	base="\${fn%/*}"
+
+	case "\$type" in
+	f)
+		echo "unpacking: \$fn (mode \$mode, \$size bytes)"
+		test "\$base" != "\$fn" && mkdir -p "\$outdir/\$base"
+		dd of="\$outdir/\$fn" bs="\$size" count=1 >/dev/null <&3
+		;;
+	d)
+		echo "creating: \$fn (mode \$mode)"
+		mkdir -p "\$outdir/\$fn"
+		;;
+	esac
+	chmod "\$mode" "\$outdir/\$fn" || :
+done >/dev/null 2>&1
+
+PATH="\$outdir:\$PATH" "\$outdir/$exe" "\$@"
+exit \$?
+
+exit 0;
+HEADER
+
+cat "$tmpout" >> "$out"
+chmod +x "$out"
+