Update the stuff

README

@@ -10,6 +10,19 @@ To download the latest skins you need to run:
  "./update_from_db.py" OR
  the win32.NET client
 
+Licenses:
+--------
+
+cornernote:
+	Lua source code (GPLv3)
+
+Fritigern:
+	update_skins_db.sh (CC-BY-NC-SA 4.0)
+
+Krock:
+	Lua source code (GPLv3)
+	MT_skins_updater.exe (WTFPL)
+
 Credits:
 --------
 RealyBadAngel unified_inventory and Zeg9 skinsdb

update_skins_db.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+####
+# Licenced under Attribution-NonCommercial-ShareAlike 4.0 International 
+# http://creativecommons.org/licenses/by-nc-sa/4.0/
+#### ATTENTION ####
+## This script requires that jq and coreutils are installed on your system ##
+## In Debian-based distros, open a terminal and run 
+## 	sudo apt-get install jq coreutils
+###################
+
+# == Set variables ===
+# ====================
+NUMPAGES="1"	# Number of pages. Default is 1 page
+PERPAGE="2000"  # Number of items per page. Default is 2000.
+JSONURL="http://minetest.fensta.bplaced.net/api/get.json.php?getlist&page=$NUMPAGES&outformat=base64&per_page=$PERPAGE"	# The URL to the database
+PREVIEWURL="http://minetest.fensta.bplaced.net/skins/1/"	# The url to the location of the previews.
+temp=$PWD/tmp			# Where the temp folder will be. Default is $PWD/tmp, which means that the tmp folder will be put in the current folder
+METADEST=$PWD/u_skins/meta		# This is the folder where the meta data will be saved
+TEXTUREDEST=$PWD/u_skins/textures	# This is the folder where the skins and the previews will be saved
+
+
+# === Make a bunch of folders and download the db ===
+# ===================================================
+if [ -d "$temp" ]; then
+    rm -r $temp				# If the temp dir exists we will remove it and its contents.
+fi
+mkdir $temp				# Make a new temp dir. Redundant? No. We will get rid of it later.
+
+if [ ! -d "$METADEST" ]; then		# Check to see if the meta dir exists, and if not, create it
+  mkdir $METADEST
+fi
+
+if [ ! -d "$TEXTUREDEST" ]; then	# Check to see if the textures dir exists, and if not, create it
+  mkdir $TEXTUREDEST
+fi
+
+wget $JSONURL -O $temp/rawdb.txt	# Download the entire database
+
+
+# === Do the JSON thing ===
+# =========================
+i="0" 	# This will be the counter.
+while [ "$ID" != "null" ] 	# Repeat for as long as there is data to process
+  do
+    ID=$(cat $temp/rawdb.txt | jq ".skins[$i].id")
+    
+    # The next lines are kinda complex. sed is being used to strip the quotes from the variables. I had help...
+    meta_name=$(echo $(cat $temp/rawdb.txt | jq ".skins[$i].name") | sed -e 's/^"//'  -e 's/"$//')
+    meta_author=$(echo $(cat $temp/rawdb.txt | jq ".skins[$i].author") | sed -e 's/^"//'  -e 's/"$//')
+    meta_license=$(echo $(cat $temp/rawdb.txt | jq ".skins[$i].license") | sed -e 's/^"//'  -e 's/"$//')
+    
+    if [[ "$ID" != "null" ]]; then 	# Check to see if ID has a value
+      echo "#"$ID "name:" $meta_name "author:" $meta_author "license:" $meta_license  # Verbosity to show that the script is working.      
+      
+      echo $meta_name > $METADEST/character_$ID.txt		# Save the meta data to files, this line overwrites the data inside the file
+      echo $meta_author  >> $METADEST/character_$ID.txt		# Save the meta data to files, this line is added to the file
+      echo $meta_license >> $METADEST/character_$ID.txt		# Save the meta data to files, and this line is added to the file as well.
+      
+      
+      # === Extract and save the image from the JSON file ===
+      # ======================================================
+      skin=$(echo $(cat $temp/rawdb.txt | jq ".skins[$i].img") | sed -e 's/^"//'  -e 's/"$//') # Strip the quotes from the base64 encoded string
+      echo $skin | base64 --decode > $TEXTUREDEST"/character_"$ID".png"		# Decode the string, and save it as a .png file
+      
+      
+      # === Download a preview image whilst we're at it ===
+      # ====================================================
+      wget -nv $PREVIEWURL/$ID".png" -O $TEXTUREDEST"/character_"$ID"_preview.png"      # Downloads a preview of the skin that we just saved.
+      
+    fi
+    i=$[$i+1] 	# Increase the counter by one.
+  done
+
+# === Now we'll clean up the mess ===
+# ===================================
+rm -r $temp	# Remove the temp dir and its contents.
+
+exit # Not strictly needed, but i like to use it to wrap things up.