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Simple bash script to optimize images with guetzli
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| #!/bin/bash | |
| ################################################ | |
| # # | |
| # Don't forget to make this file executable # | |
| # (chmod +x optimize_dir) # | |
| # # | |
| # Improvements are always welcomed and # | |
| # encouraged # | |
| # Added a "sizes" parameter to only get image # | |
| # dimensions # | |
| ################################################ | |
| # get passed directory | |
| dirName=$1 | |
| cmd=$2 | |
| # if it's not a valid directory, print message and exit | |
| if [[ ! -d $dirName ]]; then | |
| echo "$dirName is not valid directory" | |
| exit 1 | |
| fi | |
| # count the valid files in the passed path | |
| files=`find $dirName -name "*.jpg" -type f | wc -l` | |
| # if no files are found, print message then exit | |
| if test "$files" == "0" | |
| then | |
| echo "No files found in $dirName" | |
| exit 1 | |
| fi | |
| # show the number of valid files found | |
| printf "Files found: %d\n" "$files" | |
| # processing start time | |
| start=$(date -u -d "$(date +%H:%M:%S.%N)" +"%s.%N") | |
| if [ -n "$cmd" ] && [ "$cmd" == "sizes" ]; then | |
| echo "Showing image sizes" | |
| # get size info about the images in the passed directory | |
| find $dirName -name "*.jpg" -type f -exec identify -format "%w x %h" {} \; | |
| else | |
| echo "Converting images. Please wait..." | |
| # recursively optimize images | |
| find $dirName -name "*.jpg" -type f -exec guetzli {} {} \; | |
| fi | |
| # processing end time | |
| end=$(date -u -d "$(date +%H:%M:%S.%N)" +"%s.%N") | |
| # processing end time in human readable format | |
| elapsed=`date -u -d "0 $end sec - $start sec" +'%H:%M:%S.%N'` | |
| # print time report | |
| echo "Time elapsed: $elapsed" | |
| exit 0 |
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