Custom rust installation

.gitpod.Dockerfile

@@ -1,4 +1,4 @@
-FROM gitpod/workspace-rust:2023-10-13-07-50-14
+FROM gitpod/workspace-base:2023-10-13-07-50-14
 
 USER root
 
@@ -10,6 +10,18 @@ RUN target=/usr/bin/meilisearch \
 
 USER gitpod
 
-RUN rustup default nightly-2023-10-12 \
-    && rustup component add clippy --toolchain nightly-2023-10-12 \
-    && rustup component add rustfmt --toolchain nightly-2023-10-12
+ENV RUST_VERSION="nightly-2023-10-12"
+ENV PATH=$HOME/.cargo/bin:$PATH
+
+RUN curl -fsSL https://sh.rustup.rs | sh -s -- -y --no-modify-path --default-toolchain ${RUST_VERSION} \
+  -c rls rust-analysis rust-src rustfmt clippy \
+  && for cmp in rustup cargo; do rustup completions bash "$cmp" > "$HOME/.local/share/bash-completion/completions/$cmp"; done \
+  && printf '%s\n'    'export CARGO_HOME=/workspace/.cargo' \
+  'mkdir -m 0755 -p "$CARGO_HOME/bin" 2>/dev/null' \
+  'export PATH=$CARGO_HOME/bin:$PATH' \
+  'test ! -e "$CARGO_HOME/bin/rustup" && mv "$(command -v rustup)" "$CARGO_HOME/bin"' > $HOME/.bashrc.d/80-rust \
+  && rm -rf "$HOME/.cargo/registry" # This registry cache is now useless as we change the CARGO_HOME path to `/workspace`
+
+RUN rustup default ${RUST_VERSION} # not needed but anyway \
+    && rustup component add clippy \
+    && rustup component add rustfmt