Enable reproducible builds

Author: thomasleplus

.github/workflows/docker-build-push.yml

@@ -21,6 +21,8 @@ jobs:
         shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - name: Set SOURCE_DATE_EPOCH
+        run: echo "SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct)" >> "${GITHUB_ENV}"
       - uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
       - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
       - uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0

.github/workflows/docker-release.yml

@@ -18,6 +18,8 @@ jobs:
         shell: bash
         run: echo "IMAGE=${GITHUB_REPOSITORY#*/docker-}" >> "${GITHUB_ENV}"
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - name: Set SOURCE_DATE_EPOCH
+        run: echo "SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct)" >> "${GITHUB_ENV}"
       - uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
       - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
       - uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0

.github/workflows/linter.yml

@@ -27,7 +27,7 @@ permissions: {}
 # Set the Job #
 ###############
 jobs:
-  build:
+  lint:
     # Name the Job
     name: Lint Code Base
     # Set the agent to run on

README.md

@@ -64,10 +64,11 @@ If you need more TeX Live packages, you have the following options:
 
 By default these images are based on the Debian Linux distribution
 and follow the same release cycle as the parent
-[debian docker images](https://hub.docker.com/_/debian). But there is
-also an Alpine Linux variant of these images for people who prefer
-smaller images. The images are tagged with prefix `alpine` and follow
-the same release cycle as the parent
+[debian docker images](https://hub.docker.com/_/debian). These image
+versions are tagged with sufffix `-debian` (except for the `latest`
+tag). But there is also an Alpine Linux variant of these images for
+people who prefer smaller images. These image versions are tagged with
+sufffix `-alpine` and follow the same release cycle as the parent
 [alpine docker images](https://hub.docker.com/_/alpine). Note that
 although the risk might be low, Alpine Linux is using an alternative
 implementation of the C standard library called Musl which is smaller