fix(rust): create install rust function

Signed-off-by: bkioshn <[email protected]>

earthly/rust/Earthfile

@@ -16,6 +16,40 @@ IMPORT ../../utilities/scripts AS scripts
 # cspell: words TARGETPLATFORM TARGETOS TARGETARCH TARGETVARIANT USERPLATFORM USEROS USERARCH USERVARIANT
 # cspell: words findutils fileset pkgconfig wasip
 
+# TODO(bkioshn): https://github.com/input-output-hk/catalyst-ci/issues/322
+# Installing Rust
+# Code reference from [rust1.81.0-slim-bookworm](https://github.com/rust-lang/docker-rust/blob/63f877a36f8ba9d9b4b35cd49df3327264510886/stable/bookworm/slim/Dockerfile)
+INSTALL_RUST:
+    FUNCTION
+
+    ARG TARGETARCH
+
+    ENV RUSTUP_HOME=/usr/local/rustup 
+    ENV CARGO_HOME=/usr/local/cargo 
+    ENV PATH=/usr/local/cargo/bin:$PATH 
+    ENV RUST_VERSION=1.81.0
+
+    IF [ "$TARGETARCH" = "amd64" ]
+        LET PLATFORM = "x86_64-unknown-linux-gnu"
+        LET RUSTUP_SHA = "6aeece6993e902708983b209d04c0d1dbb14ebb405ddb87def578d41f920f56d"
+    ELSE IF [ "$TARGETARCH" = "arm64" ]
+        LET PLATFORM = "aarch64-unknown-linux-gnu"
+        LET RUSTUP_SHA = "1cffbf51e63e634c746f741de50649bbbcbd9dbe1de363c9ecef64e278dba2b2"
+    ELSE
+        RUN echo >&2 "unsupported architecture: ${TARGETARCH}"; exit 1
+    END
+
+    LET URL = "https://static.rust-lang.org/rustup/archive/1.27.1/${PLATFORM}/rustup-init"
+    RUN wget $URL && echo "${RUSTUP_SHA} *rustup-init" | sha256sum -c - \
+        && chmod +x rustup-init \
+        && ./rustup-init -y --no-modify-path --profile minimal --default-toolchain $RUST_VERSION --default-host $PLATFORM \
+        && rm rustup-init \
+        && chmod -R a+w $RUSTUP_HOME $CARGO_HOME \
+        && rustup --version \
+        && cargo --version \
+        && rustc --version \
+        && rm -rf /var/lib/apt/lists/*
+
 # rust-base : Base Rustup build container.
 #   Not called directly, used by other targets.
 rust-base:
@@ -134,7 +168,6 @@ rust-base-plus-tools:
     DO +COPY_TOOL --tool="cargo-sweep"
     DO +COPY_TOOL --tool="cargo-component"
     DO +COPY_TOOL --tool="wasm-pack"
-    DO +COPY_TOOL --tool="flutter-rust-bridge-codegen" --bin="flutter_rust_bridge_codegen"
 
 # installer - fully setup our Rust caching.
 installer: