From aac1c7a386cedca9771465f1496ab1636dd71541 Mon Sep 17 00:00:00 2001
From: dinahhandel <dinahrhandel@gmail.com>
Date: Tue, 29 Mar 2016 10:59:24 -0400
Subject: [PATCH] script that creates checksums for contents of LTO tape

---
 collectionchecksum | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100755 collectionchecksum

diff --git a/collectionchecksum b/collectionchecksum
new file mode 100755
index 0000000..6f44513
--- /dev/null
+++ b/collectionchecksum
@@ -0,0 +1,34 @@
+#!/bin/bash
+#this script will create checksums of metadata files, concatinate checksum.md5 files, and append to one large checksum file for each directory 
+#this script presumes a highly specific directory structure based on CUNY TV's Archival Information Package directory structure. 
+
+_maketemp(){
+    mktemp -q "/tmp/$(basename "${0}").XXXXXX"
+    if [ "${?}" -ne 0 ]; then
+        echo "${0}: Can't create temp file, exiting..."
+        _writeerrorlog "_maketemp" "was unable to create the temp file, so the script had to exit."
+        exit 1
+    fi
+}
+
+while [ "${*}" != "" ] ; do
+    INPUT="${1}"
+    TAPECHECKSUMFILE="${INPUT}/tapechecksum.md5"
+    TEMPCHECKSUMFILE=$(_maketemp)
+    cd "${INPUT}"
+    
+    #loop through the directories, find the checksum files, cat them together, and also sed to add the media ids 
+    for CHECKSUMFILES in $(find ${INPUT} -maxdepth 3 -mindepth 3 -type f -iname "checksum.md5"); do 
+        PACKAGE=$(basename $(dirname $(dirname "${CHECKSUMFILES}")))
+        echo "${PACKAGE}"
+        cat "${CHECKSUMFILES}" | sed "s|  ./|  ./${PACKAGE}/|g" >> "${TEMPCHECKSUMFILE}"
+    done
+
+    #create md5 checksums for all of the files in the metadata directory 
+    md5deep -rel ./*/metadata >> "${TEMPCHECKSUMFILE}"
+    
+    sort -k2 "${TEMPCHECKSUMFILE}" >> "${TAPECHECKSUMFILE}"
+    
+    shift
+done
+