CWEBP - Convert all png images to webp recursively

cwebp.sh

#!/bin/bash

curl -O https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-0.4.1-linux-x86-64.tar.gz

mkdir cwebp_folder && tar xf libwebp-0.4.1-linux-x86-64.tar.gz -C cwebp_folder --strip-components 1

cp ./cwebp_folder/bin/cwebp ./ 

find . -name '*.png' -type f -exec bash -c './cwebp -q 90 "$0" -o "${0%.png}.webp"' {} \;

rm *.gz cwebp && rm -rf cwebp_folder

Dockerfile

FROM nginx

LABEL maintainer="[email protected]"

COPY /images /usr/share/nginx/html

RUN apt update && apt install -y curl

RUN curl -O https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-0.4.1-linux-x86-64.tar.gz

RUN mkdir cwebp_folder && tar xf libwebp-0.4.1-linux-x86-64.tar.gz -C cwebp_folder --strip-components 1

RUN cp ./cwebp_folder/bin/cwebp ./ 

RUN find . -name '*.png' -type f -exec bash -c './cwebp -q 90 "$0" -o "${0%.png}.webp"' {} \;

RUN cd /usr/share/nginx/html && find . -type f -name "*.html" -print0 | xargs -0 sed -i 's/.png/.webp/g'

RUN rm *.gz cwebp && \
    rm -rf cwebp_folder