Create r2t.sh

r2t.sh

@@ -0,0 +1,127 @@
+#!/bin/bash
+#title           :z2t
+#description     :This script will convert all rars(of jpg/bmp/png) with any content struct to tars(of jpg). Use "convert" command to convert images to jpg to depress disk space. the origin file's content struct will not change.
+#author          :xdtianyu@gmail.com
+#date            :20141029
+#version         :1.0 final
+#usage           :bash z2t
+#bash_version    :4.3.11(1)-release
+#==============================================================================
+
+check_sub(){
+	echo "check sub."
+    SAVEIFS=$IFS # setup this case the space char in file name.
+    IFS=$(echo -en "\n\b")
+	for subdir in $(find -maxdepth 1 -type d |grep ./ |cut -c 3-); 
+        do 
+            echo $subdir
+            cd "$subdir"
+            convert_to_jpg
+            cd ..
+    done
+    IFS=$SAVEIFS
+}
+
+convert_to_jpg(){
+    
+    for ext in jpg JPG bmp BMP png PNG; do
+        echo "ext is $ext"
+        if [ ! $(find . -maxdepth 1 -name \*.$ext | wc -l) = 0 ]; 
+	    then 
+		    x2jpg $ext
+	    fi
+    done
+
+    check_sub # check if has sub directory.
+}
+
+x2jpg(){
+    if [ ! -d origin ];then
+	mkdir origin
+    fi
+    if [ ! -d /tmp/jpg ]; then
+
+	    mkdir /tmp/jpg
+    fi
+
+    tmp_fifofile="/tmp/$$.fifo"
+    mkfifo $tmp_fifofile      # create a fifo type file.
+    exec 6<>$tmp_fifofile      # point fd6 to fifo file.
+    rm $tmp_fifofile
+
+
+    thread=10 # define numbers of threads.
+    for ((i=0;i<$thread;i++));do 
+    echo
+    done >&6 # actually only put $thread RETURNs to fd6.
+
+    for file in ./*.$1;do
+    read -u6 
+    {
+        echo 'convert -quality 80' "$file" /tmp/jpg/"${file%.*}"'.jpg'
+        convert -limit memory 64 -limit map 128 -quality 80 "$file" /tmp/jpg/"${file%.*}".jpg
+        mv "$file" origin
+        echo >&6
+    } &
+    done
+
+    wait # wait for all child thread end.
+    exec 6>&- # close fd6
+
+    mv /tmp/jpg/* .
+    rm -r origin
+
+    echo 'DONE!'
+}
+
+
+for file in *.rar ; do
+	tmpdir=$(mktemp -d)
+	DIR="${file%%.rar*}"
+	echo "unrar x $file $tmpdir";
+	unrar x "$file" $tmpdir # unrar to a tmp directory.
+	
+	if [ $(ls $tmpdir | wc -l) = 1 ]; then # check if has folders, and mv the unrared directory as same name with the rar file.
+		DIR2=$(ls $tmpdir)
+		mv "$tmpdir/$DIR2" "$DIR"
+		rmdir $tmpdir
+	else
+		mv $tmpdir "$DIR"
+	fi	
+
+	echo $DIR
+	if [ -d "$DIR" ];
+	then
+		cd "$DIR"
+		convert_to_jpg # convert process.
+        cd ..
+        echo "tar cvf $DIR.tar $DIR" 
+        tar cvf "$DIR.tar" "$DIR" # tar the directory.
+		rm -r "$DIR"
+	else
+		echo "$DIR not exist."
+	fi
+done
+
+if [ ! -d "tars" ]; then
+    mkdir tars
+fi
+
+if [ ! $(find . -maxdepth 1 -name \*.tar | wc -l) = 0 ]; 
+then 
+	mv *.tar tars
+fi
+
+# check status.
+for file in *.rar; do
+    TAR="tars/${file%%.rar*}.tar"
+    echo "check \"$TAR\" ..."
+    if [ -f "$TAR" ];then
+        echo "$file convert OK."
+        cd tars
+        md5sum "${file%%.rar*}.tar" > "${file%%.rar*}.md5" # generate md5 file.
+        cd ..
+    else
+        echo "$file convert FAILED."
+    fi
+done