88 lines
2.2 KiB
Markdown
88 lines
2.2 KiB
Markdown
## Bash script to optimize your images and convert them in WebP
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### Prerequisite
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* jpegoptim
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* optipng
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* WebP
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Debian/Ubuntu :
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```bash
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sudo apt install jpegoptim optipng webp -y
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```
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Centos 7 :
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```bash
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sudo yum install optipng jpegoptim libwebp-tools -y
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```
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---
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### Installation
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1) Download the script
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```bash
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git clone https://github.com/VirtuBox/img-optimize.git $HOME/.img-optimize
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```
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2) Add an alias in your bashrc
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```bash
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echo "alias img-optimize=$HOME/.img-optimize/optimize.sh" >> $HOME/.bashrc
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source $HOME/.bashrc
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```
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### Usage
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```bash
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Usage: img-optimize [options] <image path>
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Options:
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--jpg <image path> ..... optimize all jpg images
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--png <image path> ..... optimize all png images
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--webp <image path> ..... convert all images in webp
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--nowebp <image path> ..... optimize all png & jpg images
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--all <image path> ..... optimize all images (png + jpg + webp)
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Other options :
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-h, --help, help ... displays this help information
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Examples:
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optimize all jpg images in /var/www/images
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img-optimize --jpg /var/www/images
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```
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### Update the script
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To update the script, just run :
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```bash
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git -C $HOME/.img-optimize pull
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source .bashrc
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```
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### Setup daily cronjob
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You copy the scripts to /etc/cron.daily :
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```bash
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cp $HOME/.img-optimize/crons/jpg-png-cron.sh /etc/cron.daily/jpg-png-cron
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cp $HOME/.img-optimize/crons/jpg-png-cron.sh /etc/cron.daily/webp-cron
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chmod +x /etc/cron.daily/jpg-png-cron
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chmod +x /etc/cron.daily/webp-cron
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```
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Then just edit your websites path set with the variables `sites` at the beginning of the cron scripts.
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### Warning
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Conversion process can take a while, you can use `tmux` to launch the script and be able to close your ssh connection without interrupting conversion. Then just use `tmux attach` to login back in your tmux session.
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### Credits
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WebP conversion script was inspired by this [DigitalOcean Community Tutorial](https://www.digitalocean.com/community/tutorials/how-to-create-and-serve-webp-images-to-speed-up-your-website) |