From 5ad745de75ff62e27854fc026be48b46793839ac Mon Sep 17 00:00:00 2001
From: Geoff Bourne <itzgeoff@gmail.com>
Date: Sun, 29 Sep 2019 11:45:21 -0500
Subject: [PATCH] Initial support for GENERIC_PACK For #392

---
 start-finalSetup02Modpack | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/start-finalSetup02Modpack b/start-finalSetup02Modpack
index 25cd680d..782377c0 100644
--- a/start-finalSetup02Modpack
+++ b/start-finalSetup02Modpack
@@ -1,5 +1,9 @@
 #!/bin/bash
 
+set -e
+
+. /start-utils
+
 #  CURSE_URL_BASE used in manifest downloads below
 CURSE_URL_BASE=${CURSE_URL_BASE:-https://minecraft.curseforge.com/projects}
 
@@ -106,4 +110,25 @@ case "X$EFFECTIVE_MANIFEST_URL" in
 esac
 fi
 
+if [[ "${GENERIC_PACK}" ]]; then
+  if isURL "${GENERIC_PACK}"; then
+    generic_pack_url=${GENERIC_PACK}
+    GENERIC_PACK=/tmp/$(basename ${generic_pack_url})
+    echo "Downloading generic pack from ${generic_pack_url} ..."
+    curl -fsSL -o ${GENERIC_PACK} ${generic_pack_url}
+  fi
+
+  sum_file=/data/.generic_pack.sum
+  if ! sha256sum -c ${sum_file} -s 2> /dev/null; then
+    base_dir=/tmp/generic_pack_base
+    mkdir -p ${base_dir}
+    unzip -q -d ${base_dir} ${GENERIC_PACK}
+    depth=$(( ${GENERIC_PACK_STRIP_DIRS:-1} + 1 ))
+    echo "Applying generic pack, stripping $(( depth - 1 )) level ..."
+    find ${base_dir} -type d -mindepth $depth -maxdepth $depth -exec cp -r {} /data/ +
+    rm -rf ${base_dir}
+    sha256sum ${GENERIC_PACK} > ${sum_file}
+  fi
+fi
+
 exec /start-finalSetup03Modconfig $@