[CI] fix docker image build by specifying merge-base commit id when downloading pre-compiled wheels

docker/Dockerfile

@@ -193,6 +193,7 @@ ARG SCCACHE_S3_NO_CREDENTIALS=0
 
 # Flag to control whether to use pre-built vLLM wheels
 ARG VLLM_USE_PRECOMPILED=""
+ARG VLLM_MERGE_BASE_COMMIT=""
 ARG VLLM_MAIN_CUDA_VERSION=""
 
 # if USE_SCCACHE is set, use sccache to speed up compilation
@@ -211,6 +212,7 @@ RUN --mount=type=cache,target=/root/.cache/uv \
         && export SCCACHE_IDLE_TIMEOUT=0 \
         && export CMAKE_BUILD_TYPE=Release \
         && export VLLM_USE_PRECOMPILED="${VLLM_USE_PRECOMPILED}" \
+        && export VLLM_PRECOMPILED_WHEEL_COMMIT="${VLLM_MERGE_BASE_COMMIT}" \
         && export VLLM_MAIN_CUDA_VERSION="${VLLM_MAIN_CUDA_VERSION}" \
         && export VLLM_DOCKER_BUILD_CONTEXT=1 \
         && sccache --show-stats \
@@ -229,6 +231,7 @@ RUN --mount=type=cache,target=/root/.cache/ccache \
         rm -rf .deps && \
         mkdir -p .deps && \
         export VLLM_USE_PRECOMPILED="${VLLM_USE_PRECOMPILED}" && \
+        export VLLM_PRECOMPILED_WHEEL_COMMIT="${VLLM_MERGE_BASE_COMMIT}" && \
         export VLLM_DOCKER_BUILD_CONTEXT=1 && \
         python3 setup.py bdist_wheel --dist-dir=dist --py-limited-api=cp38; \
     fi

setup.py

@@ -346,10 +346,13 @@ def determine_wheel_url() -> tuple[str, str | None]:
         The order of preference is:
         1. user-specified wheel location (can be either local or remote, via
            VLLM_PRECOMPILED_WHEEL_LOCATION)
-        2. user-specified variant from nightly repo (current main commit via
-           VLLM_PRECOMPILED_WHEEL_VARIANT)
+        2. user-specified variant (VLLM_PRECOMPILED_WHEEL_VARIANT) from nightly repo
         3. the variant corresponding to VLLM_MAIN_CUDA_VERSION from nightly repo
-        4. the default variant from nightly repo (current main commit)
+        4. the default variant from nightly repo
+
+        If downloading from the nightly repo, the commit can be specified via
+        VLLM_PRECOMPILED_WHEEL_COMMIT; otherwise, the head commit in the main branch
+        is used.
         """
         wheel_location = os.getenv("VLLM_PRECOMPILED_WHEEL_LOCATION", None)
         if wheel_location is not None:
@@ -362,10 +365,13 @@ def determine_wheel_url() -> tuple[str, str | None]:
             # try to fetch the wheel metadata from the nightly wheel repo
             main_variant = "cu" + envs.VLLM_MAIN_CUDA_VERSION.replace(".", "")
             variant = os.getenv("VLLM_PRECOMPILED_WHEEL_VARIANT", main_variant)
-            commit = os.getenv(
-                "VLLM_PRECOMPILED_WHEEL_COMMIT",
-                precompiled_wheel_utils.get_base_commit_in_main_branch(),
-            )
+            commit = os.getenv("VLLM_PRECOMPILED_WHEEL_COMMIT", "").lower()
+            if not commit or len(commit) != 40:
+                print(
+                    f"VLLM_PRECOMPILED_WHEEL_COMMIT not valid: {commit}"
+                    ", trying to fetch base commit in main branch"
+                )
+                commit = precompiled_wheel_utils.get_base_commit_in_main_branch()
             print(f"Using precompiled wheel commit {commit} with variant {variant}")
             try_default = False
             wheels, repo_url, download_filename = None, None, None
@@ -494,10 +500,6 @@ def extract_precompiled_and_patch_package(
 
     @staticmethod
     def get_base_commit_in_main_branch() -> str:
-        # Force to use the nightly wheel. This is mainly used for CI testing.
-        if envs.VLLM_TEST_USE_PRECOMPILED_NIGHTLY_WHEEL:
-            return "nightly"
-
         try:
             # Get the latest commit hash of the upstream main branch.
             resp_json = subprocess.check_output(
@@ -508,6 +510,7 @@ def get_base_commit_in_main_branch() -> str:
                 ]
             ).decode("utf-8")
             upstream_main_commit = json.loads(resp_json)["sha"]
+            print(f"Upstream main branch latest commit: {upstream_main_commit}")
 
             # In Docker build context, .git may be immutable or missing.
             if envs.VLLM_DOCKER_BUILD_CONTEXT:

tests/standalone_tests/python_only_compile.sh

@@ -5,6 +5,10 @@
 set -e
 set -x
 
+merge_base_commit=$(git merge-base HEAD origin/main)
+echo "Current merge base commit with main: $merge_base_commit"
+git show --oneline -s $merge_base_commit
+
 cd /vllm-workspace/
 
 # uninstall vllm
@@ -18,7 +22,7 @@ apt autoremove -y
 
 echo 'import os; os.system("touch /tmp/changed.file")' >> vllm/__init__.py
 
-VLLM_TEST_USE_PRECOMPILED_NIGHTLY_WHEEL=1 VLLM_USE_PRECOMPILED=1 pip3 install -vvv -e .
+VLLM_PRECOMPILED_WHEEL_COMMIT=$merge_base_commit VLLM_USE_PRECOMPILED=1 pip3 install -vvv -e .
 
 # Run the script
 python3 -c 'import vllm'

vllm/envs.py

@@ -79,7 +79,6 @@
     NVCC_THREADS: str | None = None
     VLLM_USE_PRECOMPILED: bool = False
     VLLM_DOCKER_BUILD_CONTEXT: bool = False
-    VLLM_TEST_USE_PRECOMPILED_NIGHTLY_WHEEL: bool = False
     VLLM_KEEP_ALIVE_ON_ENGINE_DEATH: bool = False
     CMAKE_BUILD_TYPE: Literal["Debug", "Release", "RelWithDebInfo"] | None = None
     VERBOSE: bool = False
@@ -468,11 +467,6 @@ def get_vllm_port() -> int | None:
     .strip()
     .lower()
     in ("1", "true"),
-    # Whether to force using nightly wheel in python build.
-    # This is used for testing the nightly wheel in python build.
-    "VLLM_TEST_USE_PRECOMPILED_NIGHTLY_WHEEL": lambda: bool(
-        int(os.getenv("VLLM_TEST_USE_PRECOMPILED_NIGHTLY_WHEEL", "0"))
-    ),
     # CMake build type
     # If not set, defaults to "Debug" or "RelWithDebInfo"
     # Available options: "Debug", "Release", "RelWithDebInfo"