Merge pull request #23 from Tokarak/main

Dockerfile: Use cargo-chef

Dockerfile

@@ -1,14 +1,23 @@
 # ============ Build Stage ============
-FROM rust:1.74-bookworm as build
-
+FROM lukemathwalker/cargo-chef:latest-rust-1 AS chef
 WORKDIR /typst-bot
 
+FROM chef AS planner
+
 # Compilation requires only the source code.
 COPY Cargo.toml Cargo.lock ./
 COPY crates crates
+RUN cargo chef prepare --recipe-path recipe.json
 
-RUN cargo build --release --all --config git-fetch-with-cli=true
+FROM chef AS builder
 
+COPY --from=planner /typst-bot/recipe.json recipe.json
+# Caching layer
+RUN cargo chef cook --release --workspace --recipe-path recipe.json
+# Compilation requires only the source code.
+COPY Cargo.toml Cargo.lock ./
+COPY crates crates
+RUN cargo build --release --workspace --config git-fetch-with-cli=true
 
 # ============ Run Stage ============
 FROM debian:bookworm-slim as run
@@ -26,11 +35,12 @@ RUN mkdir -p /bot/sqlite /bot/cache && \
     touch /bot/sqlite/db.sqlite
 
 # The only files we need from the build stage in order to run the bot are the two executables.
-COPY --from=build \
+COPY --from=builder \
     /typst-bot/target/release/worker \
     /typst-bot/target/release/typst-bot \
     ./
 
 # Fonts are copied from the host at the very end so that the fonts can get updated without
 # invalidating any previously cached image layers.
 COPY fonts fonts
+