1 files changed, 100 insertions, 0 deletions
diff --git a/app-arch/makeself/files/makeself-unpack b/app-arch/makeself/files/makeself-unpack
new file mode 100755
index 000000000000..90b98312c8b9
--- /dev/null
+++ b/app-arch/makeself/files/makeself-unpack
@@ -0,0 +1,100 @@
+#!/bin/bash
+
+# Glue to keep unpack_makeself() unchanged
+source /lib/gentoo/functions.sh
+find_unpackable_file() { echo "$@"; }
+debug-print() { :; }
+emktemp() { mktemp "$@"; }
+die() { eerror "$*"; exit 1; }
+assert() { _pipestatus="${PIPESTATUS[*]}"; [[ "${_pipestatus// /}" -eq 0 ]] || die; }
+
+# Straight copied from unpacker.eclass ... should be kept in sync
+
+unpack_banner() {
+	echo ">>> Unpacking ${1##*/} to ${PWD}"
+}
+
+unpack_makeself() {
+	local src_input=${1:-${A}}
+	local src=$(find_unpackable_file "${src_input}")
+	local skip=$2
+	local exe=$3
+
+	[[ -z ${src} ]] && die "Could not locate source for '${src_input}'"
+
+	unpack_banner "${src}"
+
+	if [[ -z ${skip} ]] ; then
+		local ver=$(grep -m1 -a '#.*Makeself' "${src}" | awk '{print $NF}')
+		local skip=0
+		exe=tail
+		case ${ver} in
+			1.5.*|1.6.0-nv*)	# tested 1.5.{3,4,5} ... guessing 1.5.x series is same
+				skip=$(grep -a ^skip= "${src}" | cut -d= -f2)
+				;;
+			2.0|2.0.1)
+				skip=$(grep -a ^$'\t'tail "${src}" | awk '{print $2}' | cut -b2-)
+				;;
+			2.1.1)
+				skip=$(grep -a ^offset= "${src}" | awk '{print $2}' | cut -b2-)
+				(( skip++ ))
+				;;
+			2.1.2)
+				skip=$(grep -a ^offset= "${src}" | awk '{print $3}' | head -n 1)
+				(( skip++ ))
+				;;
+			2.1.3)
+				skip=`grep -a ^offset= "${src}" | awk '{print $3}'`
+				(( skip++ ))
+				;;
+			2.1.4|2.1.5|2.1.6|2.2.0)
+				skip=$(grep -a offset=.*head.*wc "${src}" | awk '{print $3}' | head -n 1)
+				skip=$(head -n ${skip} "${src}" | wc -c)
+				exe="dd"
+				;;
+			*)
+				eerror "I'm sorry, but I was unable to support the Makeself file."
+				eerror "The version I detected was '${ver}'."
+				eerror "Please file a bug about the file ${src##*/} at"
+				eerror "http://bugs.gentoo.org/ so that support can be added."
+				die "makeself version '${ver}' not supported"
+				;;
+		esac
+		debug-print "Detected Makeself version ${ver} ... using ${skip} as offset"
+	fi
+	case ${exe} in
+		tail)	exe="tail -n +${skip} '${src}'";;
+		dd)		exe="dd ibs=${skip} skip=1 if='${src}'";;
+		*)		die "makeself cant handle exe '${exe}'"
+	esac
+
+	# lets grab the first few bytes of the file to figure out what kind of archive it is
+	local filetype tmpfile=$(emktemp)
+	eval ${exe} 2>/dev/null | head -c 512 > "${tmpfile}"
+	filetype=$(file -b "${tmpfile}") || die
+	case ${filetype} in
+		*tar\ archive*)
+			eval ${exe} | tar --no-same-owner -xf -
+			;;
+		bzip2*)
+			eval ${exe} | bzip2 -dc | tar --no-same-owner -xf -
+			;;
+		gzip*)
+			eval ${exe} | tar --no-same-owner -xzf -
+			;;
+		compress*)
+			eval ${exe} | gunzip | tar --no-same-owner -xf -
+			;;
+		XZ*)
+			eval ${exe} | unxz | tar --no-same-owner -xf -
+			;;
+		*)
+			eerror "Unknown filetype \"${filetype}\" ?"
+			false
+			;;
+	esac
+	assert "failure unpacking (${filetype}) makeself ${src##*/} ('${ver}' +${skip})"
+	rm "${tmpfile}"
+}
+
+for x; do unpack_makeself "$x" ; done