Fix arch detection in v8 build

Author: JoshuaBehrens

.github/workflows/build-test.yml

@@ -55,6 +55,14 @@ jobs:
                     cd "$(mktemp -d)"
 
                     ARCH=$(uname -m)
+                    if [[ "$ARCH" == "x86_64" ]]; then
+                        V8CONFIG="x64.release"
+                    elif [[ "$ARCH" == "arm64" ]]; then
+                        V8CONFIG="arm64.release"
+                    else
+                        echo "Unknown architecture: $ARCH" >&2
+                        exit 1
+                    fi
                     fetch --nohooks --no-history v8
                     cd v8
                     git fetch --tag origin refs/tags/${{ matrix.v8-versions }}
@@ -63,17 +71,17 @@ jobs:
 
                     # Setup GN
                     # Warnings are no errors - @see https://issues.chromium.org/issues/42203398#comment9
-                    tools/dev/v8gen.py -vv ${ARCH}.release -- is_component_build=true use_custom_libcxx=false treat_warnings_as_errors=false
+                    tools/dev/v8gen.py -vv $V8CONFIG -- is_component_build=true use_custom_libcxx=false treat_warnings_as_errors=false
 
                     # Build
-                    ninja -C out.gn/${ARCH}.release/
+                    ninja -C out.gn/$V8CONFIG/
 
                     if [[ "${{ runner.os }}" == "macOS" ]]; then
                         LIB_EXT=dylib
                     else
                         LIB_EXT=so
                     fi
-                    cp out.gn/${ARCH}.release/lib*.${LIB_EXT} out.gn/${ARCH}.release/*_blob.bin out.gn/${ARCH}.release/icudtl.dat /opt/v8/self-built/lib/
+                    cp out.gn/$V8CONFIG/lib*.${LIB_EXT} out.gn/$V8CONFIG/*_blob.bin out.gn/$V8CONFIG/icudtl.dat /opt/v8/self-built/lib/
                     cp -R include/* /opt/v8/self-built/include/
 
                     # Go back to origin