From 595f36b990fd3fc99e6d911465a2e68c0f3a6eab Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Wed, 27 Apr 2016 06:52:10 -0400
Subject: xorriso.sh accepts btrfs filesystem seeds as arguments

---
 xorriso.sh | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/xorriso.sh b/xorriso.sh
index 944682e..dbe5fe8 100755
--- a/xorriso.sh
+++ b/xorriso.sh
@@ -1,13 +1,22 @@
 #!/bin/sh
 
-outdev=debian-live-8.4.0-amd64-standard.btrfs.isohybrid2
+outdev=samizdat.iso
 indev=debian-live-8.4.0-amd64-standard.iso
 volid=SamizdatLive
-btrfs_filesystem=debian-live-8.4.0-amd64-standard.btrfs
 gpg_iso_path=gnupghome
 gnupghome=gnupghome
 secrets=secrets
 
+if [ $# = 0 ]; then
+    set -- debian-live-8.4.0-amd64-standard.btrfs layer.btrfs
+fi
+
+for fs; do
+    [ -f "$fs" ] || exit 1
+    shift
+    set -- "$@" "rootfs/${fs##*/}=$fs"
+done
+
 die() { printf '%s\n' "$*"; exit 1; }
 
 make_gnupghome()
@@ -55,7 +64,7 @@ xorriso \
         \
         \
         -add isolinux -- \
-        -add "rootfs/${btrfs_filesystem}=${btrfs_filesystem}" -- \
+        -follow link -add "$@" -- -follow default \
         -add "${gpg_iso_path}=${gnupghome}" -- \
         \
         \
-- 
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