More disk redumps

disks/pcx86/redump.sh

@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+#
+# The purposes of redump is to DiskDump each IMG file listed in every disk manifest to a temporary JSON file,
+# then DiskDump that back into a temporary IMG file, then hexdump both the original IMG and temporary IMG files,
+# diff the dumps, and save the differences in the current log file.  Then we want to mount the temporary IMG file
+# (which should normally be possible, since we used --forceBPB to create the temporary JSON) and dump all the files
+# into an archived subfolder.
+#
+# After all that, we're ready to delete the temporary JSON and IMG files, as well as the hexdumps, and then redump
+# the original JSON file and update the manifest with a list of all the files contained in the corresponding archived
+# subfolder.
+#
+# redump.sh accepts two arguments:
+#
+#	$1 is the directory to search for manifests containing disk images (eg, "."); this is a required argument
+#	$2 is an optional DiskDump argument (eg, "--forceBPB" if you're sure the boot sector(s) can be safely modified)
+#
+if [ -z "$1" ]; then
+	echo "no directory specified"
+	exit 1
+fi
+if [ ! -d "$1" ]; then
+	echo "directory $1 does not exist"
+	exit 1
+fi
+log=/Users/Jeff/Sites/pcjs/disks/pcx86/redump.log
+find -L $1 -name "manifest.xml" -exec grep -H -e "<disk.*img=" {} \; | sed -E "s/^([^:]*)\/manifest\.xml:.*img=\"([^\"]*)\".*href=\"([^\"]*)\".*/\1;\2;\3/" > disks
+while read line; do
+	dirManifest=`echo ${line} | sed -E "s/;.*//"`
+	imgFile=`echo ${line} | sed -E "s/.*;(.*);.*/\1/"`
+	jsonFile=$(basename `echo ${line} | sed -E "s/.*;.*;(.*)/\1/"`)
+	img="${dirManifest}/${imgFile}"
+	dir=$(dirname "${img}")
+	name=$(basename "${img}" ".img")
+	# log=${dir}/${name}.log
+	jsonTmp="${dir}/${name}.json"
+	if [ -f "${jsonTmp}" ]; then
+		rm "${jsonTmp}"
+	fi
+	echo diskdump --disk="${img}" --format=json --output="${jsonTmp}" --forceBPB >> ${log}
+	node ~/Sites/pcjs/modules/diskdump/bin/diskdump --disk="${img}" --format=json --output="${jsonTmp}" --forceBPB >> ${log}
+	if [ ! -f "${jsonTmp}" ]; then
+		echo "WARNING: diskdump failed to create ${jsonTmp}"
+		break
+	fi
+	imgTmp="${dir}/${name}-TMP.img"
+	if [ -f "${imgTmp}" ]; then
+		chmod +w "${imgTmp}"
+		rm "${imgTmp}"
+	fi
+	echo diskdump --disk="${jsonTmp}" --format=img  --output="${imgTmp}" >> ${log}
+	node ~/Sites/pcjs/modules/diskdump/bin/diskdump --disk="${jsonTmp}" --format=img  --output="${imgTmp}" >> ${log}
+	if [ ! -f "${imgTmp}" ]; then
+		echo "WARNING: diskdump failed to create ${imgTmp}"
+		break
+	fi
+	chmod oga-w "${imgTmp}"
+	hexdump -C "${img}" > "${dir}/${name}.txt"
+	hexdump -C "${imgTmp}" > "${dir}/${name}-TMP.txt"
+	echo diff "${img}" "${imgTmp}" >> ${log}
+	diff "${dir}/${name}.txt" "${dir}/${name}-TMP.txt" >> ${log}
+	rm "${dir}/${name}.txt" "${dir}/${name}-TMP.txt"
+	dirDisk="${dir}/${name}"
+	if [ -d "${dirDisk}" ]; then
+		chflags -R nouchg,nohidden "${dirDisk}"
+		rm -rf "${dirDisk}"
+	fi
+	# echo "mounting "${imgTmp}"..."
+	hdiutil mount "$imgTmp" > disk
+	if grep -q -e "^/dev" disk; then
+		echo "mounted $imgTmp"
+		vol=`grep -o -e "/Volumes/.*" disk`
+		# subdir=`echo "$vol" | grep -o -e "[^/]*$"`
+		# subdir=`echo "$img" | grep -o -e "[^/]*$" | sed -E "s/(.*)\.img/\1/"`
+		# echo cp -Rpv "$vol/" "$dirDisk"
+		cp -Rp "$vol/" "$dirDisk"
+		# chmod -R go-w "$dirDisk"
+		hdiutil unmount "$vol" > /dev/null
+		# echo "unmounted $imgTmp"
+	else
+		echo "WARNING: unable to mount $imgTmp"
+		break
+	fi
+	chmod +w "${imgTmp}"
+	rm disk "${imgTmp}" "${jsonTmp}"
+	pushd ${dirManifest} > /dev/null
+	imgFile=`echo ${imgFile} | sed -E "s/^\.\///"`
+	jsonFile=`echo ${imgFile} | sed -E "s/(.*)(archive|private).*/\1/"`${jsonFile}
+	echo diskdump --disk="${imgFile}" --format=json --output="${jsonFile}" --overwrite --manifest $2 >> ${log}
+	node ~/Sites/pcjs/modules/diskdump/bin/diskdump --disk="${imgFile}" --format=json --output="${jsonFile}" --overwrite --manifest $2 | tee -a ${log}
+	popd > /dev/null
+done < disks
+rm disks