discuzx图片附件转webp

转换前：

[root@online home]# du -sh /var/www/html/data/attachment/forum/
164M    /var/www/html/data/attachment/forum/
[root@online home]# du -sh /var/www/html/data/attachment/album/
18M /var/www/html/data/attachment/album/

转换后

[root@online home]# du -sh /var/www/html/data/attachment/forum/
106M    /var/www/html/data/attachment/forum/
[root@online home]# du -sh /var/www/html/data/attachment/album/
9.1M    /var/www/html/data/attachment/album/

转换脚本，定时任务执行。

#!/bin/bash

USER="www"
FORUM="/var/www/html/data/attachment/forum"
ALBUM="/var/www/html/data/attachment/album"

for id in `find $FORUM -type f |xargs file |grep "image data" |grep -v "GIF" |awk -F':' '{print $1}'`;do
    echo $id
    webp="${id}.webp"
    convert $id $webp
    mv $webp $id
done

for id in `find $ALBUM -type f |xargs file |grep "image data" |grep -v "GIF" |awk -F':' '{print $1}'`;do
    echo $id
    webp="${id}.webp"
    convert $id $webp
    mv $webp $id
done

chown -R $USER:$USER $FORUM
chown -R $USER:$USER $ALBUM

依赖软件

ImageMagick
libwebp-tools