[CI] Add support for windows to dispatch_job.py

This patch adds in windows functionality to dispatch_job.py. Some minor
refactoring was done around the start_build function so that the core
functionality can be reused between Linux and Windows.

Pull Request: llvm#540

Author: boomanaiden154

zorg/buildbot/builders/annotated/premerge/dispatch_job.py

@@ -17,50 +17,79 @@
 
 import kubernetes
 
-PLATFORM_TO_NAMESPACE = {"Linux": "llvm-premerge-linux-buildbot"}
+PLATFORM_TO_NAMESPACE = {
+    "Linux": "llvm-premerge-linux-buildbot",
+    "Windows": "llvm-premerge-windows-buildbot",
+}
 LOG_SECONDS_TO_QUERY = 10
 SECONDS_QUERY_LOGS_EVERY = 5
 
 
-def start_build_linux(commit_sha: str, k8s_client) -> str:
+def start_build(k8s_client, pod_name: str, namespace: str, commands: list[str]) -> None:
     """Spawns a pod to build/test LLVM at the specified SHA.
 
     Args:
       commit_sha: The commit SHA to build/run the tests at.
       k8s_client: The kubernetes client instance to use for spawning the pod.
-
-    Returns:
-      A string containing the name of the pod.
+      commands: The commands to run upon pod start.
     """
-    pod_name = f"build-{commit_sha}"
-    commands = [
-        "git clone --depth 100 https://github.com/llvm/llvm-project",
-        "cd llvm-project",
-        f"git checkout ${commit_sha}",
-        "export CC=clang",
-        "export CXX=clang++",
-        './.ci/monolithic-linux.sh "bolt;clang;clang-tools-extra;flang;libclc;lld;lldb;llvm;mlir;polly" "check-bolt check-clang check-clang-cir check-clang-tools check-flang check-lld check-lldb check-llvm check-mlir check-polly" "compiler-rt;libc;libcxx;libcxxabi;libunwind" "check-compiler-rt check-libc" "check-cxx check-cxxabi check-unwind" "OFF"'
-        "echo BUILD FINISHED",
-    ]
     pod_definition = {
         "apiVersion": "v1",
         "kind": "Pod",
         "metadata": {
             "name": pod_name,
-            "namespace": PLATFORM_TO_NAMESPACE["Linux"],
+            "namespace": namespace,
         },
         "spec": {
             "containers": [
                 {
                     "name": "build",
                     "image": "ghcr.io/llvm/ci-ubuntu-24.04",
-                    "command": ["/bin/bash", "-c", ";".join(commands)],
+                    "commands": commands,
                 }
             ],
             "restartPolicy": "Never",
         },
     }
     kubernetes.utils.create_from_dict(k8s_client, pod_definition)
+
+
+def start_build_linux(commit_sha: str, k8s_client) -> str:
+    pod_name = f"build-{commit_sha}"
+    commands = [
+        "git clone --depth 100 https://github.com/llvm/llvm-project",
+        "cd llvm-project",
+        f"git checkout ${commit_sha}",
+        "export CC=clang",
+        "export CXX=clang++",
+        './.ci/monolithic-linux.sh "bolt;clang;clang-tools-extra;flang;libclc;lld;lldb;llvm;mlir;polly" "check-bolt check-clang check-clang-cir check-clang-tools check-flang check-lld check-lldb check-llvm check-mlir check-polly" "compiler-rt;libc;libcxx;libcxxabi;libunwind" "check-compiler-rt check-libc" "check-cxx check-cxxabi check-unwind" "OFF"'
+        "echo BUILD FINISHED",
+    ]
+    start_build(
+        k8s_client,
+        pod_name,
+        PLATFORM_TO_NAMESPACE["Linux"],
+        ["/bin/bash", "-c", ";".join(commands)],
+    )
+    return pod_name
+
+
+def start_build_windows(commit_sha: str, k8s_client):
+    pod_name = f"build-{commit_sha}"
+    bash_commands = [
+        "git clone --depth 100 https://github.com/llvm/llvm-project",
+        "cd llvm-project",
+        f"git checkout ${commit_sha}",
+        '.ci/monolithic-windows.sh "clang;clang-tools-extra;libclc;lld;llvm;mlir;polly" "check-clang check-clang-cir check-clang-tools check-lld check-llvm check-mlir check-polly"',
+        "echo BUILD FINISHED",
+    ]
+    commands = [
+        "call C:\\BuildTools\\Common7\\Tools\\VsDevCmd.bat -arch=amd64 -host_arch=amd64",
+        "bash",
+        "-c",
+        ";".join(bash_commands),
+    ]
+    start_build(k8s_client, pod_name, PLATFORM_TO_NAMESPACE["Windows"], commands)
     return pod_name
 
 
@@ -150,6 +179,8 @@ def main(commit_sha: str, platform: str):
     k8s_client = kubernetes.client.ApiClient()
     if platform == "Linux":
         pod_name = start_build_linux(commit_sha, k8s_client)
+    elif platform == "Windows":
+        pod_name = start_build_windows(commit_sha, k8s_client)
     else:
         raise ValueError("Unrecognized platform.")
     namespace = PLATFORM_TO_NAMESPACE[platform]