DataHoarder_scripts/lego_dl.sh

#!/bin/bash
##############################
#
# NOTE: There is still some small errors with sets with multiple booklets
# 
# This scripts uses the brickset instructions file to get links and set numbers.
# In order to get themes, we get themes from rebrickable. 
# 
# Files are saved as:
# $tID""$setDESC""${setNAME// /_}"_("$setTHEME"_"$setYEAR").pdf"
# 1190-1_Retro_Buggy_(Town_1999).pdf
# 
# If a set contains multiple filesm the file name will be:
# 2520-1_(1_of_2)_Battle_Arena_(Ninjago_2011).pdf
# 2520-1_(2_of_2)_Battle_Arena_(Ninjago_2011).pdf
# 
# Req:
# bash, awk, grep, sed, curl, wget
#
# Get themes.csv and sets.cvs from https://rebrickable.com/downloads
# 
# error_level: 
#	0 no errors reported
#	1 Download errors reported
#	2 Existing files and download errors reported
#
##############################

echo "----> Starting Download of all LEGO instructions from https://brickset.com/exportscripts/instructions"
firstline=0

##### CHANGE HERE #####
logfile="lego_errors.log"
downloadFolder="../Instructions"
error_level=1
##### STOP CHANGE #####

echo "" > $logfile

THEMES="themes.csv"
SETS="sets.csv"

if [ -f "instructions" ]; then
	echo "---> Using existing instructions file. Manually delete it to redownload..."
else 
	echo -ne "---> Downloading csv from Brickset..."
	wget https://brickset.com/exportscripts/instructions &> /dev/null  
	if [[ "$?" != 0 ]]; then
		echo "Error... Exiting!"
		exit; 
	else
		echo "Done!" 
	fi
fi

echo "----> Converting csv with ',' to '|'..."
head -1 instructions | sed 's/,/|/g' > instructions.csv
sed 1,1d instructions | sed -r 's/("[^",]+),([^",]+")/\1###\2/g' | awk -F, '{print $1,$2,$3,$4,$5,$6}' | sed 's/###/,/g' | sed 's/" "/"|"/g' >> instructions.csv

while IFS='|' read -r ID LINK NAME DESC ADDED RETRIVED
do

	if [ "$firstline" = 0 ]; then
		firstline=1
	else			
		tID=$(sed -e 's/^"//' -e 's/"$//' <<<"$ID")
		tLINK=$(sed -e 's/^"//' -e 's/"$//' <<<"$LINK")
		#tNAME=$(sed -e 's/^"//' -e 's/"$//' <<<"$NAME")
		ttNAME=$(cut -d, -f1-2 sets.csv | grep -w $tID | cut -d, -f2)
		setYEAR=$(grep -w $tID sets.csv | cut -d, -f3)
		setNAME=$(sed -e 's/[^A-Za-z0-9._-]/_/g' <<< $ttNAME)
		themeID=$(grep -w $tID sets.csv | cut -d, -f4)
		themeName=$(awk -F',' -v id="$themeID" '$1 == id' themes.csv)
		IFS=',' read -r -a array <<< "$themeName"  
		tempID=${array[2]}
		if [[ $tempID != "" ]]; then
			while [[ $tempID != "" ]]  
			do 	 
		 		tthemeName=$(awk -F',' -v id="$tempID" '$1 == id' themes.csv)
				IFS=',' read -r -a tArray <<< "$tthemeName"
		 		tempID=${tArray[2]}
		 		themeName=${tArray[1]}
			done 
		else  
			themeName=${array[1]} 
		fi

		setTHEME=$(sed -e 's/[^A-Za-z0-9._-]/_/g' <<< $themeName)
			
		tADDED=$(sed -e 's/^"//' -e 's/"$//' <<<"$ADDED")
		tDESC=$(sed -e 's/^"//' -e 's/"$//' <<<"$DESC")
		ttDESC=$(echo $tDESC | grep -Eo '\s[0-9]{1}\s?\/\s?[0-9]{1,2}' | sed 's/ //g' | sed 's/\//_of_/g')
		
		if [ -z "$ttDESC" ]; then
			setDESC="_"
		else
			setDESC="_("$ttDESC")_"
		fi

		tFilename=""$tID""$setDESC""${setNAME// /_}"_("$setTHEME"_"$setYEAR").pdf"
		filename=$tFilename

		if [ -f "$downloadFolder/$filename" ]; then
			if [[ $error_level = 2 ]]; then
				echo "-> $tID exists. Skipping..."
				echo "$filename exists." >> $logfile
			fi 	
		else
			if [[ "$tDESC" = "{No longer listed at LEGO.com}" ]] ; then
				if [[ $error_level = 1 || $error_level = 2 ]]; then
					echo "-> $tID is not available. Skipping..."
					echo "$filename is not available." >> $logfile
				fi
			else  
				echo -ne "--> $tID downloading now..."
				curl -H "Mozilla/5.0 (platform; rv:75.0) Gecko/20100101 Firefox/75.0" -L $tLINK --silent --output "$downloadFolder/$filename"
				if [ -f "$downloadFolder/$filename" ]; then
					echo "Done! > $filename"
				else
					echo "ERROR!"
					if [[ $error_level = 1 || $error_level = 2 ]]; then  
					  echo 
						echo "--> Not downloaded. Try again manually..."
						echo "$filename was not downloaded. Check CURL" >> $logfile
					fi
				fi
				#random sleep in order to not look like a script
				sleep $(( ( RANDOM % 1 )  + 1 ))
			fi
		fi
	fi
	
done < instructions.csv