CI: update stuff

.docker/Dockerfile

@@ -1,18 +1,31 @@
-FROM ubuntu:22.04
+# Stage 1: Install TeX Live and dependencies (Cached)
+FROM alpine:latest AS builder
 
-# Avoid prompts from apt
-ENV DEBIAN_FRONTEND=noninteractive
+# Install system dependencies (these rarely change)
+RUN apk add --no-cache git bash wget
 
-# Install required packages
-RUN apt-get update && apt-get install -y \
-    texlive-full \
+# Install texlive and other tex related packages to cache
+RUN apk add --no-cache \
+    texlive \
+    texlive-latex \
+    texlive-latex-extra \
+    texlive-fonts-extra \
+    texlive-xetex \
+    texlive-bibtex-extra \
     latexmk \
-    && rm -rf /var/lib/apt/lists/*
+    --repository=http://dl-cdn.alpinelinux.org/alpine/v3.18/main
+
+# Stage 2: Final Image (Smaller and Faster)
+FROM alpine:latest
 
-# Create a working directory
 WORKDIR /latex
 
-# Copy compilation script
+# Copy only the necessary parts of TeX Live
+COPY --from=builder /usr/share/texmf-dist /usr/share/texmf-dist
+COPY --from=builder /usr/bin/latexmk /usr/bin/latexmk
+COPY --from=builder /usr/bin/xelatex /usr/bin/xelatex
+
+# Copy your project files AFTER the TeX Live setup
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 

.github/workflows/release.yml

@@ -22,21 +22,10 @@ jobs:
         id: changes
         run: |
           CHANGED=0
-          # Fetch the latest changes
           git fetch origin main
-
-          # Check if there are more than one commit to compare against
-          if [ "$(git rev-list --count HEAD)" -gt 1 ]; then
-            # Ensure that there is more than 1 commit in the history
-            if git diff --name-only HEAD^ HEAD | grep -E "^(.docker/|.*\.(tex|sty|cls)$)" > /dev/null; then
+          if [[ $(git diff --name-only origin/main HEAD) =~ ^(\.docker\/|.*\.tex$|.*\.sty$|.*\.cls$) ]]; then
               CHANGED=1
-            fi
-          else
-            # If there's no previous commit (only 1 commit), assume no changes to the relevant files
-            echo "Only one commit or no previous commit, skipping change check."
-            CHANGED=0
           fi
-
           echo "changed=${CHANGED}" >> $GITHUB_OUTPUT
 
       - name: Set up Docker
@@ -58,15 +47,9 @@ jobs:
           context: .docker
           push: true
           tags: ghcr.io/${{ github.repository }}/latex-builder:latest
-          cache-from: |
-            type=registry,ref=ghcr.io/${{ github.repository }}/latex-builder:buildcache
-            type=registry,ref=ghcr.io/${{ github.repository }}/latex-builder:latest
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/latex-builder:(buildcache,latest)
           cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/latex-builder:buildcache,mode=max
 
-      - name: Pull latest Docker image
-        if: steps.changes.outputs.changed == '1'
-        run: docker pull ghcr.io/${{ github.repository }}/latex-builder:latest
-
       - name: Build LaTeX document
         if: steps.changes.outputs.changed == '1'
         run: |