fix(ci): force clang for Linux x86_64 native builds (#1054)

.github/workflows/build-native.yml

@@ -72,6 +72,17 @@ jobs:
         with:
           workspaces: crates/codegraph-core
 
+      # Force clang for the host x86_64-linux-gnu build. With gcc (the runner's
+      # default `cc`) the bundled C parsers in tree-sitter-hcl produce a binary
+      # whose HCL extractor silently drops files (#1054). Clang produces a
+      # working binary.
+      - name: Use clang for x86_64-linux-gnu
+        if: matrix.target == 'x86_64-unknown-linux-gnu'
+        run: |
+          clang --version
+          echo "CC=clang" >> "$GITHUB_ENV"
+          echo "CXX=clang++" >> "$GITHUB_ENV"
+
       - name: Install cross-compilation tools (aarch64-gnu)
         if: matrix.target == 'aarch64-unknown-linux-gnu'
         run: |

.github/workflows/ci.yml

@@ -61,6 +61,16 @@ jobs:
         with:
           workspaces: crates/codegraph-core
 
+      # Force clang on Linux runners. With gcc (the default cc) the bundled
+      # C parsers in tree-sitter-hcl produce a binary whose HCL extractor
+      # silently drops files (#1054). Clang produces a working binary.
+      - name: Use clang on Linux
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          clang --version
+          echo "CC=clang" >> "$GITHUB_ENV"
+          echo "CXX=clang++" >> "$GITHUB_ENV"
+
       - name: Install napi-rs CLI
         run: npm install -g @napi-rs/cli@3
 

.github/workflows/publish.yml

@@ -44,6 +44,15 @@ jobs:
         with:
           workspaces: crates/codegraph-core
 
+      # Match the build-native job: gcc-built tree-sitter parsers drop files
+      # on Linux x86_64 (#1054). Use clang here too so preflight parity tests
+      # exercise the same binary characteristics as the published artifact.
+      - name: Use clang for native build
+        run: |
+          clang --version
+          echo "CC=clang" >> "$GITHUB_ENV"
+          echo "CXX=clang++" >> "$GITHUB_ENV"
+
       - name: Install napi-rs CLI
         run: npm install -g @napi-rs/cli@3
 
@@ -178,6 +187,18 @@ jobs:
         with:
           workspaces: crates/codegraph-core
 
+      # Force clang for the host x86_64-linux-gnu build. With gcc (the runner's
+      # default `cc`) the bundled C parsers in tree-sitter-hcl produce a binary
+      # whose HCL extractor silently drops files (#1054), triggering an
+      # expensive WASM backfill on every build call. Clang produces a working
+      # binary. Verified locally: gcc 14.2.0 drops .tf files, clang does not.
+      - name: Use clang for x86_64-linux-gnu
+        if: matrix.target == 'x86_64-unknown-linux-gnu'
+        run: |
+          clang --version
+          echo "CC=clang" >> "$GITHUB_ENV"
+          echo "CXX=clang++" >> "$GITHUB_ENV"
+
       - name: Install cross-compilation tools (aarch64-gnu)
         if: matrix.target == 'aarch64-unknown-linux-gnu'
         run: |