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May 12, 2021 11:17
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Optimise images in a folder for web
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| #!/bin/bash | |
| commandExists () { | |
| type "$1" &> /dev/null ; | |
| } | |
| installJpegOptim() { | |
| if commandExists brew; then | |
| ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null | |
| brew install jpegoptim | |
| else | |
| apt-get install jpegoptim | |
| fi | |
| } | |
| installOptiPng() { | |
| if commandExists brew; then | |
| ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null | |
| brew install optipng | |
| else | |
| apt-get install optipng | |
| fi | |
| } | |
| resizeImages() { | |
| if commandExists sips; then | |
| # change your desired max height here for the different image types | |
| find . -type f -name '*.png' -exec sips -Z 640 {} \; | |
| find . -type f -name '*.jpg' -exec sips -Z 640 {} \; | |
| find . -type f -name '*.jpeg' -exec sips -Z 640 {} \; | |
| fi | |
| # @TODO use something else when sips is not available | |
| } | |
| optimizePng() { | |
| # change -o4 to the desired levels of optimisation, the higher the number the slower it will go | |
| find . -name "*.png" -exec optipng -o4 -strip all {} \; | |
| } | |
| optimizeJpg() { | |
| # change -m65 to the desired quality level | |
| find . -name "*.jpg" -exec jpegoptim -m65 -o -p --strip-all {} \; | |
| find . -name "*.jpeg" -exec jpegoptim -m65 -o -p --strip-all {} \; | |
| } | |
| if ! commandExists jpegoptim; then | |
| installJpegOptim | |
| fi | |
| if ! commandExists optipng; then | |
| installOptiPng | |
| fi | |
| resizeImages | |
| optimizePng & optimizeJpg |
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The resizing appears not to be working (anymore?)