initial

.gitignore

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+build/

Dockerfile

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+FROM alpine:3.13
+# Install cwebp and avifenc
+RUN apk -U add libwebp-tools libavif-apps dav1d # rav1e #(soon?)
+ADD ./generate_all /usr/bin/generate_all
+RUN mkdir /src
+WORKDIR /src
+
+CMD ["/usr/bin/generate_all"]

Jenkinsfile

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+pipeline {
+    agent any
+    stages {
+            stage('Cloning our Git') {
+                steps {
+					checkout([$class: 'GitSCM',
+							  branches: [[name: '*/master']],
+							  doGenerateSubmoduleConfigurations: false,
+							  extensions: [[$class: 'SubmoduleOption',
+											disableSubmodules: false,
+											parentCredentials: false,
+											recursiveSubmodules: true,
+											reference: '',
+											trackingSubmodules: false]],
+							  submoduleCfg: [],
+							  userRemoteConfigs: [[url: 'https://git.tobiasmanske.de/user/rad4day/public/docker-alpine-avif-webp/']]])
+                }
+            }
+
+            stage('Build HTML') {
+                steps {
+                    dockerImage = docker.build("alpine-avif-webp:latest")
+                    docker.withRegistry('https://registry.chaoswg.org:5000', 'docker-registry-credentials') {
+                        dockerImage.push()
+                    }
+                }
+            }
+        }
+    }

generate_all

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+#!/usr/bin/env sh
+find ./ -type f -name '*.jpg' -exec sh -c 'cwebp $1 -o "${1%.jpg}.webp"' _ {} \;
+find ./ -type f -name '*.png' -exec sh -c 'avifenc --min 10 --max 30 $1 "${1%.png}.avif"' _ {} \;