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Bash script using pngquant and jpegoptim library to compress PNG, JPG and JPEG, with batch compression as an option.
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| #!bin/bash | |
| pwd=`pwd` | |
| echo -n "Please enter the file path: "; | |
| read filePath; | |
| if [ ! -f "$filePath" ] | |
| then | |
| echo "File "$filePath" not found!"; | |
| exit; | |
| fi | |
| imageType="${filePath##*.}"; | |
| lengthPath="${#filePath}"; | |
| originalName="${filePath:0:($lengthPath-4)}"; | |
| pause() | |
| { | |
| read -p "$*"; | |
| } | |
| install_pngquant() | |
| { | |
| cd ~/Documents/; | |
| git clone git://github.com/pornel/pngquant.git; | |
| if [[ -d 'pngquant' ]] | |
| then | |
| cd pngquant; | |
| make -s; | |
| make -s install; | |
| cd ..; | |
| rm -rf ~/Documents/pngquant; | |
| command -v pngquant >/dev/null 2>&1 || | |
| { | |
| echo "Something went horribly wrong and pngquant hasn't been installed! (╯°□°）╯︵ ┻━┻"; | |
| exit; | |
| } | |
| echo -e "********************************** \n******* Installation done! ******* \n********************************** \n"; | |
| pause 'Press [Enter] key to compress your image...'; | |
| run_pngquant; | |
| else | |
| echo "Couldn't clone pngquant git repo. \nDo you have an Internet access?"; | |
| exit; | |
| fi | |
| } | |
| run_pngquant() | |
| { | |
| command -v pngquant >/dev/null 2>&1 || | |
| { | |
| echo -e >&2 "Pngquant command line tool hasn't been installed."; | |
| while true; do | |
| read -p "Do you wish to install this program (Y/N)? " yn | |
| case $yn in | |
| [Yy]* ) install_pngquant;; | |
| [Nn]* ) echo "End"; exit;; | |
| * ) echo "Please answer Yes or No.";; | |
| esac | |
| done | |
| exit; | |
| } | |
| pngquant -vf "$filePath" --ext "$fileExtension"; | |
| imageOutput="${originalName}$fileExtension"; | |
| outputSize=$(du -h "$imageOutput"); | |
| echo -e "\xF0\x9f\x8d\xba Compression done! \nOutput: $outputSize"; | |
| exit; | |
| } | |
| install_libjpeg() | |
| { | |
| cd /usr/local/include/; | |
| if [[ -f 'jpeglib.h' ]] | |
| then | |
| install_jpegoptim; | |
| else | |
| cd ~/Documents/; | |
| curl -O http://www.ijg.org/files/jpegsrc.v8c.tar.gz | |
| tar -xf jpegsrc.v8c.tar.gz | |
| rm jpegsrc.v8c.tar.gz | |
| if [[ -d 'jpeg-8c' ]] | |
| then | |
| cd jpeg-8c/; | |
| ./configure; | |
| make; | |
| make -s install; | |
| cd ..; | |
| rm -rf jpeg-8c/; | |
| pause 'Press [Enter] key to install jpegoptim...'; | |
| install_jpegoptim; | |
| else | |
| echo -e "Something went horribly wrong and libjpeg hasn't been installed! (╯°□°）╯︵ ┻━┻ \nDo you have Internet access?"; | |
| exit; | |
| fi | |
| fi | |
| } | |
| install_jpegoptim() | |
| { | |
| cd ~/Documents/; | |
| git clone https://github.com/tjko/jpegoptim.git; | |
| if [[ -d 'jpegoptim' ]] | |
| then | |
| cd jpegoptim; | |
| ./configure; | |
| make -s; | |
| make -s install; | |
| cd ..; | |
| rm -rf ~/Documents/jpegoptim; | |
| command -v jpegoptim >/dev/null 2>&1 || | |
| { | |
| echo "Something went horribly wrong and jpegoptim hasn't been installed! (╯°□°）╯︵ ┻━┻"; | |
| exit; | |
| } | |
| echo -e "********************************** \n******* Installation done! ******* \n********************************** \n"; | |
| pause 'Press [Enter] key to compress your image...'; | |
| run_jpegoptim; | |
| else | |
| echo -e "Couldn't get jpegoptim. \nDo you have Internet access?"; | |
| exit; | |
| fi | |
| } | |
| run_jpegoptim_twenty_kb() | |
| { | |
| make_image_copy; | |
| twenty_kb=20000; | |
| copy_ext="_copy"; | |
| copyTempFilePath=${tempFilePath}$copy_ext; | |
| cp $tempFilePath $copyTempFilePath; | |
| while [ $twenty_kb -le $outputSize -a $qualityCompression -gt 20 ] | |
| do | |
| cp $copyTempFilePath $tempFilePath; | |
| qualityCompression=$((qualityCompression-1)); | |
| jpegoptim -v --max=$qualityCompression "$tempFilePath"; | |
| outputSize=$(ls -l "$tempFilePath" | awk '{print $5}'); | |
| done | |
| if $overwrite | |
| then | |
| extension=$fileExtension; | |
| else | |
| extension=$imageType; | |
| fi | |
| rm $copyTempFilePath; | |
| mv $tempFilePath ${originalName}$extension; | |
| echo -e "\xF0\x9f\x8d\xba Compression done! \nOutput: ${originalName}$extension, $outputSize"; | |
| remove_temp_folder; | |
| exit; | |
| } | |
| run_jpegoptim_quality() | |
| { | |
| if $overwrite | |
| then | |
| make_image_copy; | |
| currentFile=$tempFilePath; | |
| extension=$fileExtension; | |
| else | |
| currentFile=$filePath; | |
| extension=$imageType; | |
| fi | |
| jpegoptim -v --max=$qualityCompression "$currentFile"; | |
| mv $currentFile ${originalName}$extension; | |
| echo -e "\xF0\x9f\x8d\xba Compression done!"; | |
| remove_temp_folder; | |
| exit; | |
| } | |
| make_image_copy() | |
| { | |
| temp="/temp"; | |
| mkdir ${pwd}$temp; | |
| tempName="/_temp"; | |
| tempDir=${pwd}$temp; | |
| cp $filePath ${tempDir}$tempName; | |
| tempFilePath=${tempDir}$tempName; | |
| } | |
| remove_temp_folder() | |
| { | |
| rm -rf ${pwd}$temp; | |
| } | |
| run_jpegoptim_command() | |
| { | |
| while true; do | |
| read -p "Do you wish to overwrite your image (Y/N)? " yn | |
| case $yn in | |
| [Yy]* ) overwrite=false; break;; | |
| [Nn]* ) overwrite=true; break;; | |
| * ) echo "Please answer Yes or No.";; | |
| esac | |
| done | |
| if $once | |
| then | |
| while true; do | |
| read -p "Please enter the maximum image quality factor [0-100]: " qualityCompression; | |
| case $qualityCompression in | |
| [0-99]*) run_jpegoptim_quality;; | |
| * ) echo "$qualityCompression, Not a number between 0 and 100.";; | |
| esac | |
| done | |
| else | |
| qualityCompression=80; | |
| jpegoptim -v --max=$qualityCompression "$filePath"; | |
| outputSize=$(ls -l "$filePath" | awk '{print $5}'); | |
| run_jpegoptim_twenty_kb; | |
| fi | |
| } | |
| run_jpegoptim() | |
| { | |
| command -v jpegoptim >/dev/null 2>&1 || | |
| { | |
| echo -e >&2 "Jpegoptim hasn't been installed."; | |
| while true; do | |
| read -p "Do you wish to install this program (Y/N)? " yn | |
| case $yn in | |
| [Yy]* ) install_libjpeg;; | |
| [Nn]* ) echo "End"; exit;; | |
| * ) echo "Please answer Yes or No.";; | |
| esac | |
| done | |
| exit; | |
| } | |
| while true; do | |
| read -p "Do you need this image to be under 20kb (Y/N): " yn; | |
| case $yn in | |
| [Yy]* ) once=false; run_jpegoptim_command $once; break;; | |
| [Nn]* ) once=true; run_jpegoptim_command $once; break;; | |
| * ) echo "Please answer Yes or No.";; | |
| esac | |
| done | |
| } | |
| customExt="_MINI"; | |
| pngExt="png"; | |
| jpgExt="jpg"; | |
| jpegExt="jpeg"; | |
| case ${imageType:(-1)} in | |
| [A-Z]*) upperLetter=true;; | |
| [a-z]*) upperLetter=false;; | |
| esac | |
| if $upperLetter | |
| then | |
| fileExtension="${customExt}".$imageType""; | |
| lowerCaseLetters=$(echo $imageType | awk '{print tolower($0)}'); | |
| imageType="$lowerCaseLetters"; | |
| else | |
| imageType="$imageType"; | |
| fileExtension="${customExt}".$imageType""; | |
| fi | |
| if [[ "$imageType" == *$pngExt* ]] | |
| then | |
| run_pngquant; | |
| exit; | |
| elif [[ "$imageType" == *$jpgExt* ]] || [[ "$imageType" == *$jpegExt* ]] | |
| then | |
| run_jpegoptim; | |
| exit; | |
| else | |
| echo "Compression works with PNG, JPG and JPEG only."; | |
| exit; | |
| fi |
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