ci: support Cairo1 recompile in CI

Signed-off-by: Dori Medini <[email protected]>

.github/workflows/compiled_cairo.yml

@@ -18,17 +18,38 @@ on:
 jobs:
   verify_cairo_file_dependencies:
     runs-on: ubuntu-latest
+
     steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
+      # Checkout blockifier into a dedicated directory - technical requirement in order to be able to checkout `cairo` in a sibling directory.
+      - name: checkout blockifier into `blockifier` directory.
+        uses: actions/checkout@v4
+        with:
+          repository: 'starkware-libs/blockifier'
+          path: 'blockifier'
+
+      - name: Read Cairo1 Tag to compile contracts with from Blockifier.
+        id: read-tag
+        # GITHUB_ENV is a variable github allocates for dynamic stuff inside workflow like our usage, name not customizable.
+        run: echo "TAG=$(cat blockifier/crates/blockifier/tests/cairo1_compiler_tag.txt)" >> $GITHUB_ENV
+
+      - name: checkout cairo1 repo in order to compile cairo1 contracts.
+        uses: actions/checkout@v4
+        with:
+          repository: 'starkware-libs/cairo'
+          fetch-tags: tags
+          ref: ${{ env.TAG }}
+          path: 'cairo'
+
+      - uses: actions-rs/toolchain@master
         with:
           components: rustfmt
-          toolchain: nightly-2024-01-12
+          toolchain: nightly-2023-07-05
       - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-python@v4
         with:
           python-version: '3.9'
           cache: 'pip'
       - run:
-          pip install -r crates/blockifier/tests/requirements.txt;
+          cd blockifier &&
+          pip install -r crates/blockifier/tests/requirements.txt &&
           cargo test verify_feature_contracts -- --include-ignored

crates/blockifier/src/test_utils/cairo_compile.rs

@@ -169,7 +169,6 @@ fn verify_cairo1_compiler_deps(git_tag_override: Option<String>) {
     // Checkout the required version in the compiler repo.
     run_and_verify_output(Command::new("git").args([
         "-C",
-        // TODO(Dori, 1/6/2024): Handle CI case (repo path will be different).
         cairo_repo_path.to_str().unwrap(),
         "checkout",
         &tag,

crates/blockifier/tests/feature_contracts_compatibility_test.rs

@@ -136,10 +136,6 @@ fn verify_feature_contracts_match_enum() {
 fn verify_feature_contracts(
     #[values(CairoVersion::Cairo0, CairoVersion::Cairo1)] cairo_version: CairoVersion,
 ) {
-    if std::env::var("CI").is_ok() && matches!(cairo_version, CairoVersion::Cairo1) {
-        // TODO(Dori, 1/6/2024): Support Cairo1 contracts in the CI and remove this `if` statement.
-        return;
-    }
     let fix_features = std::env::var("FIX_FEATURE_TEST").is_ok();
     verify_feature_contracts_compatibility(fix_features, cairo_version)
 }