ci: use rust-toolchain.toml

Author: Wenzel

.github/builder/common.sh

@@ -5,8 +5,8 @@
 
 set -e
 
-if [ -z "${RUST_NIGHTLY_VERSION}"  ]; then
-    echo "RUST_NIGHTLY_VERSION not set. It should be defined by ci.yml workflow."
+if [ -z "${RUST_NIGHTLY_DATE}"  ]; then
+    echo "RUST_NIGHTLY_DATE not set. It should be defined by ci.yml workflow."
     exit 1
 fi
 
@@ -112,8 +112,8 @@ download_and_verify_make() {
 
 download_and_verify_rust() {
     RUST_GPG_KEY_URL="https://static.rust-lang.org/rust-key.gpg.ascii"
-    RUST_URL="https://static.rust-lang.org/dist/${RUST_NIGHTLY_VERSION}/rust-nightly-x86_64-unknown-linux-gnu.tar.xz"
-    RUST_SIG_URL="https://static.rust-lang.org/dist/${RUST_NIGHTLY_VERSION}/rust-nightly-x86_64-unknown-linux-gnu.tar.xz.asc"
+    RUST_URL="https://static.rust-lang.org/dist/${RUST_NIGHTLY_DATE}/rust-nightly-x86_64-unknown-linux-gnu.tar.xz"
+    RUST_SIG_URL="https://static.rust-lang.org/dist/${RUST_NIGHTLY_DATE}/rust-nightly-x86_64-unknown-linux-gnu.tar.xz.asc"
 
     if [ -z "${BUILDER_DIR}" ]; then
         echo "BUILDER_DIR not set. Exiting..."

.github/workflows/ci.yml

@@ -19,7 +19,6 @@ env:
   PUBLIC_SIMICS_ISPM_VERSION: "1.8.3"
   MINGW_URL: "https://github.com/brechtsanders/winlibs_mingw/releases/download/13.2.0-16.0.6-11.0.0-ucrt-r1/winlibs-x86_64-posix-seh-gcc-13.2.0-llvm-16.0.6-mingw-w64ucrt-11.0.0-r1.7z"
   MINGW_VERSION: "13.2.0-16.0.6-11.0.0-ucrt-r1"
-  RUST_NIGHTLY_VERSION: "2025-02-28"
 
 permissions:
   contents: read
@@ -472,9 +471,6 @@ jobs:
           chmod -R 0755 tests/rsrc/
 
       - uses: dtolnay/rust-toolchain@83bdede770b06329615974cf8c786f845d824dfb # nightly
-        with:
-          toolchain: nightly-${{ env.RUST_NIGHTLY_VERSION }}
-          components: rustfmt,clippy,miri
 
       - name: Cache SIMICS Dependencies
         id: cache-simics-packages
@@ -579,7 +575,7 @@ jobs:
           echo "Downloading Rustup"
           Invoke-WebRequest -URI https://win.rustup.rs/x86_64 -OutFile C:\rustup-init.exe
           echo "Installing Rust"
-          C:\rustup-init.exe --default-toolchain nightly-${{ env.RUST_NIGHTLY_VERSION }} --default-host x86_64-pc-windows-gnu -y
+          C:\rustup-init.exe --default-host x86_64-pc-windows-gnu --default-toolchain none
 
       - name: Cache SIMICS
         id: cache-simics-packages-windows
@@ -653,10 +649,33 @@ jobs:
           path: .github/builder/rsrc
           key: "cache-builder-dependencies-${{ hashFiles('.github/builder/common.sh') }}"
 
+      # tomllib is available in Python 3.11 and later
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Extract Rust channel from rust-toolchain.toml
+        id: rust-channel
+        shell: python3 {0}
+        run: |
+          import tomllib
+          import os
+
+          with open('rust-toolchain.toml', 'rb') as f:
+              data = tomllib.load(f)
+              channel = data['toolchain']['channel']
+              date = channel.split("nightly-")[1]
+
+          with open(os.environ['GITHUB_OUTPUT'], 'a') as out:
+              out.write(f'nightly_date={date}\n')
+
       # NOTE: This script only downloads the builder dependencies if they do not already exist,
       # but it always verifies them.
       - name: Build Distribution Package
         run: |
+          RUST_NIGHTLY_DATE="${{ steps.rust-channel.outputs.nightly_date }}"
+          export RUST_NIGHTLY_DATE
           ./scripts/build.sh
 
       - name: Upload Distribution Package

Dockerfile

@@ -66,7 +66,7 @@ RUN dnf -y update && \
     isort==5.12.0 \
     mypy==1.6.1 \
     pylint==3.0.2 && \
-    curl https://sh.rustup.rs -sSf | bash -s -- -y
+    curl https://sh.rustup.rs -sSf | bash -s -- --default-toolchain none -y
 
 
 WORKDIR /workspace

scripts/build.sh

@@ -25,4 +25,4 @@ docker build \
 docker create --name "${CONTAINER_NAME}" "${IMAGE_NAME}" bash
 mkdir -p "${ROOT_DIR}/packages"
 docker cp "${CONTAINER_NAME}:/packages" "${ROOT_DIR}/"
-docker rm -f "${CONTAINER_NAME}"
+docker rm -f "${CONTAINER_NAME}"