chore: import upstream snapshot with attribution

python/ray/dashboard/modules/job/tests/backwards_compatibility_scripts/script.py

@@ -0,0 +1,26 @@
+import requests
+
+import ray
+
+ray.init()
+
+
+@ray.remote
+class Counter:
+    def __init__(self):
+        self.counter = 0
+
+    def inc(self):
+        self.counter += 1
+
+    def get_counter(self):
+        return self.counter
+
+
+counter = Counter.remote()
+
+for _ in range(5):
+    ray.get(counter.inc.remote())
+    print(ray.get(counter.get_counter.remote()))
+
+print(requests.__version__)

python/ray/dashboard/modules/job/tests/backwards_compatibility_scripts/test_backwards_compatibility.sh

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+
+set -ex
+
+unset RAY_ADDRESS
+
+if ! [ -x "$(command -v conda)" ]; then
+    echo "conda doesn't exist. Please download conda for this machine"
+    exit 1
+else
+    echo "conda exists"
+fi
+
+# This is required to use conda activate
+source "$(conda info --base)/etc/profile.d/conda.sh"
+
+PYTHON_VERSION=$(python -c"from platform import python_version; print(python_version())")
+
+RAY_VERSIONS=("2.0.1")
+
+for RAY_VERSION in "${RAY_VERSIONS[@]}"
+do
+    env_name=${JOB_COMPATIBILITY_TEST_TEMP_ENV}
+
+    # Check if the conda env exists
+    if conda env list | grep -q "${env_name}"; then
+        # Clean up if env name is already taken from previous leaking runs
+        conda env remove --name="${env_name}"
+    fi
+
+    printf "\n\n\n"
+    echo "========================================================================================="
+    printf "Creating new conda environment with python %s for ray %s \n" "${PYTHON_VERSION}" "${RAY_VERSION}"
+    echo "========================================================================================="
+    printf "\n\n\n"
+
+    # Include `pip` explicitly: conda-forge's `python` package stopped
+    # bundling pip as a dep, and without it `conda activate` puts us in
+    # an env with python but no pip, so subsequent `pip install` falls
+    # back to the base miniforge env's pip. That clobbers the editable
+    # ray 3.0.0.dev0 in base with ray 2.0.1, and every subsequent
+    # dashboard test that imports `ray._common` fails because 2.0.1
+    # predates that module.
+    conda create -y -n "${env_name}" python="${PYTHON_VERSION}" pip=25.2
+    conda activate "${env_name}"
+    python -m pip install --upgrade pip
+
+    # Pin pydantic version due to: https://github.com/ray-project/ray/issues/36990.
+    # ray<2.9 is only compatible with pydantic<2 and setuptools < 70.
+    python -m pip install -U "pydantic<2" ray=="${RAY_VERSION}" ray[default]=="${RAY_VERSION}" setuptools==69.5.1
+
+    printf "\n\n\n"
+    echo "========================================================="
+    printf "Installed ray job server version: "
+    SERVER_RAY_VERSION=$(python -c "import ray; print(ray.__version__)")
+    printf "%s \n" "${SERVER_RAY_VERSION}"
+    echo "========================================================="
+    printf "\n\n\n"
+    ray stop --force
+    ray start --head
+
+    conda deactivate
+
+    CLIENT_RAY_VERSION=$(python -c "import ray; print(ray.__version__)")
+    CLIENT_RAY_COMMIT=$(python -c "import ray; print(ray.__commit__)")
+    printf "\n\n\n"
+    echo "========================================================================================="
+    printf "Using Ray %s on %s as job client \n" "${CLIENT_RAY_VERSION}" "${CLIENT_RAY_COMMIT}"
+    echo "========================================================================================="
+    printf "\n\n\n"
+
+    export RAY_ADDRESS="http://127.0.0.1:8265"
+
+    cleanup () {
+        unset RAY_ADDRESS
+        ray stop --force
+        conda remove -y --name "${env_name}" --all
+    }
+
+    JOB_ID=$(python -c "import uuid; print(uuid.uuid4().hex)")
+
+    # Get directory of current file. https://stackoverflow.com/questions/59895/
+    DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+
+    if ! ray job submit --job-id="${JOB_ID}" --working-dir="${DIR}" --runtime-env-json='{"pip": ["requests==2.26.0", "setuptools==69.5.1"]}' -- python script.py; then
+        cleanup
+        exit 1
+    fi
+
+    if ! ray job status "${JOB_ID}"; then
+        cleanup
+        exit 1
+    fi
+
+    if ! ray job logs "${JOB_ID}"; then
+        cleanup
+        exit 1
+    fi
+
+    if ! pytest -vs "${DIR}"/../test_backwards_compatibility.py::test_error_message; then
+        cleanup
+        exit 1
+    fi
+
+    cleanup
+done