stuff

1 files changed, 13 insertions, 0 deletions

diff --git a/osi-extract b/osi-extract
new file mode 100755
index 0000000..b978a51
--- /dev/null
+++ b/osi-extract
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# 2018 Luke Shumaker
+{
+	set -euE
+	image=$1
+	src=$(realpath -ms -- "$2")
+	dst=$3
+
+	mountpoint=$(mktemp -dt -- "${0##*/}.XXXXXXXXXX")
+	trap "rmdir -- ${mountpoint@Q}" EXIT
+
+	sudo unshare --mount sh -c "mount --make-rslave / && mount ${image@Q} ${mountpoint@Q} && cp -aT -- ${mountpoint@Q}/${src@Q} ${dst@Q}"
+}