I had a bunch of ISO images lying on my disk, and wanted to compress them as CSO to spare toom on my SD cards. I stumbled upon pspshrink which is a nice command-line PSP ISO compressor for Linux. Building it on my desktop was a trivial task.
Next I wrote the following Bash script to automate compression:
#!/bin/bash
EXEC_PATH="`pwd`"
echo -e "Executing in $EXEC_PATH"
ISO_FOLDER=iso
CSO_FOLDER=cso
COMPRESS="$EXEC_PATH/pspshrink-1.1.2/pspshrink 9"
while read r;
do
DIR="`dirname "$r"`"
pushd "$DIR"
ROM="`basename "$DIR"`"
# US rom?
US=`expr match "$ROM" '.*_US'`
if [ "$US" -gt 0 ]; then
ROM="`expr substr "$ROM" 1 "$US"`"
else
# EU rom?
EU=`expr match "$ROM" '.*_EU'`
if [ "$EU" -gt 0 ]; then
ROM="`expr substr "$ROM" 1 "$EU"`"
fi
fi
echo -e "\n########## Start $ROM"
unrar e -o+ "$r"
rename -v 's/\.ISO/.iso/' *.ISO
ISO="`find -name "*.iso"`"
CSO=""$EXEC_PATH"/"$CSO_FOLDER"/"$ROM".cso"
if [ -f "$CSO" ]; then
echo -e "Skip existing "$CSO""
else
$COMPRESS "$ISO" "$CSO"
fi
rm -vf *.r*
popd
echo -e "\n########## End $ROM"
done < <(find $EXEC_PATH/$ISO_FOLDER -name "*.rar" | sort)
Worked like a charm!
And finally a small script, recycling the same base loop, that checks for missing ROMs (the compress script handles only RAR archives).
#!/bin/bash
EXEC_PATH="`pwd`"
echo -e "Executing in $EXEC_PATH"
ISO_FOLDER=iso
CSO_FOLDER=cso
while read d;
do
ROM="`basename "$d"`"
# US rom?
US=`expr match "$ROM" '.*_US'`
if [ "$US" -gt 0 ]; then
ROM="`expr substr "$ROM" 1 "$US"`"
else
# EU rom?
EU=`expr match "$ROM" '.*_EU'`
if [ "$EU" -gt 0 ]; then
ROM="`expr substr "$ROM" 1 "$EU"`"
fi
fi
CSO=""$EXEC_PATH"/"$CSO_FOLDER"/"$ROM".cso"
if [ -f "$CSO" ]; then
echo -e "[OK] "$CSO""
else
echo -e "[KO] "$CSO""
fi
done < <(ls -ld $EXEC_PATH/$ISO_FOLDER/* | sort)
