From b76dba93996c97a97548ebc96e99fe75c99ed3ba Mon Sep 17 00:00:00 2001
From: bill-auger <mr.j.spam.me@gmail.com>
Date: Mon, 16 Oct 2017 21:44:34 -0400
Subject: add sanity checks

---
 configs/profile/build.sh | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/configs/profile/build.sh b/configs/profile/build.sh
index b882d39..bffb518 100755
--- a/configs/profile/build.sh
+++ b/configs/profile/build.sh
@@ -231,15 +231,10 @@ make_iso() {
     mkparabolaiso ${verbose} -w ${work_dir} -D ${iso_dirname} -L ${iso_label} -o ${out_dir} iso ${iso_filename}
 }
 
-if [[ ${EUID} -ne 0 ]]; then
-    echo "This script must be run as root."
-    _usage 1
-fi
 
-if [[ ${arch} != x86_64 ]]; then
-    echo "This script needs to be run on x86_64"
-    _usage 1
-fi
+## prepare state ##
+
+# set CLI options
 
 while getopts 'V:L:D:w:o:vh' arg; do
     case "${arg}" in
@@ -258,6 +253,24 @@ while getopts 'V:L:D:w:o:vh' arg; do
 done
 
 
+## sanity checks ##
+
+# validate build environment
+if [[ "$(uname -m)" != 'x86_64' ]] || ! grep 'ID_LIKE=.*archlinux' /usr/lib/os-release > /dev/null; then
+    echo "This script needs to be run on an x86_64 ArchLinux derrivative."
+    exit 1
+elif [[ ${EUID} -ne 0 ]]; then
+    echo "This script needs to be run with root privileges."
+    exit 1
+elif ! pacman --version | grep libalpm > /dev/null; then
+    echo "This script needs the 'pacman' package manager to be installed."
+    exit 1
+elif ! pacman -Qi parabolaiso-data > /dev/null; then
+    echo "This script needs the 'parabolaiso-data' package to be installed."
+    exit 1
+fi
+
+# sanitize paths
 iso_label=${iso_label// /}
 iso_dirname=${iso_dirname// /}
 work_dir=${work_dir// /}
@@ -267,6 +280,8 @@ iso_title="${iso_title} ${iso_version}"
 iso_filename="parabola-${iso_edition}-${iso_type}-${iso_version}.iso"
 
 
+## build ISO ##
+
 chown -R 0:0 "${releng_dir}/root-image/"
 mkdir -p ${work_dir}
 
-- 
cgit v1.2.2