install_from_cd.sh: Add CD audio ripping functionality

Author: eukara

install_from_cd.sh

@@ -14,7 +14,7 @@ mk_pk3()
 # grabs a patch .zip from archive.org and saves it as a pk3
 grab_patch()
 {
-	wget -nc -O ./pak$2.pk3 http://archive.org/download/hl_shareware_data/valve/$1.zip
+	wget -nc -O ./pak$2.pk4 http://archive.org/download/hl_shareware_data/valve/$1.zip
 }
 
 SCRPATH="$( cd "$( dirname $(readlink -nf $0) )" && pwd )"
@@ -42,18 +42,22 @@ if ! [ -f "$CDROM_PATH"/data1.cab ]; then
 	exit 1
 fi
 
-# Grab the cabinet data off the CD
-mkdir -p ./tmp
-unshield -d ./tmp x "$CDROM_PATH"/data1.cab
-
-# Let's shove them all into a convenient .pk3dir
-mkdir -p ./$OUTPK3DIR
-mv -v ./tmp/Half-Life_PAK_File/valve/pak0.pak ./pak00_cd.pak
-rsync -av ./tmp/Half-Life_Program_Files/valve/ ./$OUTPK3DIR/
-mv -v ./tmp/Half-Life_Program_Files/media ./$OUTPK3DIR/media
-mv -v ./tmp/Half-Life_Program_Files/logos ./$OUTPK3DIR/logos
-cd ./$OUTPK3DIR
-mk_pk3 pak01_cd
+# Check if we need to do anything
+if ! [ -f "$SCRPATH/pak00_cd.pak" ] || ! [ -f "$SCRPATH/pak01_cd.pk3" ]; then
+	# Grab the cabinet data off the CD
+	mkdir -p ./tmp
+	unshield -d ./tmp x "$CDROM_PATH"/data1.cab
+
+	# Let's shove them all into a convenient .pk3dir
+	mkdir -p ./$OUTPK3DIR
+	mv -v ./tmp/Half-Life_PAK_File/valve/pak0.pak ./pak00_cd.pak
+	rsync -av ./tmp/Half-Life_Program_Files/valve/ ./$OUTPK3DIR/
+	mv -v ./tmp/Half-Life_Program_Files/media ./$OUTPK3DIR/media
+	mv -v ./tmp/Half-Life_Program_Files/logos ./$OUTPK3DIR/logos
+	cd ./$OUTPK3DIR
+	mk_pk3 pak01_cd
+fi
+
 cd "$SCRPATH"
 
 # Get the latest patch, because that'll fix the menu assets and add more fun, free content
@@ -72,5 +76,42 @@ grab_patch 11071108 14_1108
 grab_patch 11081109 15_1109
 grab_patch 11091110 16_1110
 
+# Make sure we're back in here
+cd "$SCRPATH"
+
+printf "All done. Would you like to rip the the Compact Disc Digital Audio for music?\ny/n: "
+read CHOICE
+
+if [[ "$CHOICE" == [Yy]* ]]; then
+	# check if we require rippin tunes
+	if ! [ -f "$SCRPATH/music/track02.wav" ] && ! [ -f "$SCRPATH/music/track02.ogg" ]; then
+		if [ -x "$(command -v cdparanoia)" ]; then
+			mkdir -p "./music"
+			cd "./music"
+			cdparanoia -B
+			rename ".cdda." "." *.wav
+
+			# Maybe the user does not have the physical disc and cdp fails.
+			if [ -f "$SCRPATH/music/track02.wav" ]; then
+			# I'd offer FLAC, but that also requires the ffmpeg plugin
+			if [ -x "$(command -v oggenc)" ]; then
+				printf "All done. Would you like to convert them to OGG for playback compatibility\nas well as space preservation (frees up ~330 MB)?\ny/n: "
+				read CHOICE
+				if [[ "$CHOICE" == [Yy]* ]]; then
+					oggenc *.wav
+					rm *.wav
+				fi
+			fi
+			fi
+		else
+			printf "cdparanoia is missing. Cannot rip music.\nPlease run the installer again once you've got it installed.\n"
+		fi
+	else
+		printf "Music is already present.\n"
+	fi
+fi
+
+cd "$SCRPATH"
+
 rm -rfv ./$OUTPK3DIR
 rm -rfv ./tmp