Add mechanism for specifying configure options per branch

stratakis · Jul 2, 2026 · Jul 2, 2026 · Jul 2, 2026 · f27dd234ff0d67fcfa459e952cb30e3acc879507
commit f27dd234ff0d67fcfa459e952cb30e3acc879507
diff --git a/master/custom/factories.py b/master/custom/factories.py
@@ -119,6 +119,7 @@ def setup(self, branch, worker, test_with_PTY=False, **kwargs):
             oot_kwargs = {}
         configure_cmd = [configure_cmd, "--prefix", "$(PWD)/target"]
         configure_cmd += self.configureFlags
+        configure_cmd += worker.get_flags(branch, "configure")
         self.addStep(
             Configure(command=configure_cmd, **oot_kwargs)
         )
@@ -225,6 +226,7 @@ def setup(self, branch, worker, test_with_PTY=False, **kwargs):
             Configure(
                 command=["./configure", "--prefix", "$(PWD)/target"]
                 + self.configureFlags
+                + worker.get_flags(branch, "configure")
             )
         )
 
@@ -620,17 +622,23 @@ class BaseWindowsBuild(BaseBuild):
     factory_tags = ["win32"]
 
     def setup(self, branch, worker, **kwargs):
-        build_command = self.build_command + self.buildFlags
+        build_command = (
+            self.build_command
+            + self.buildFlags
+            + worker.get_flags(branch, "build")
+        )
         test_command = [
             *self.test_command,
             *self.testFlags,
+            *worker.get_flags(branch, "test"),
             *get_j_opts(worker, 2),
         ]
         if not has_option("-R", self.testFlags):
             test_command.extend((r"--junit-xml", JUNIT_FILENAME))
         clean_command = [
             *self.clean_command,
             *self.cleanFlags,
+            *worker.get_flags(branch, "clean"),
             *get_j_opts(worker),
         ]
         self.addStep(Compile(command=build_command))
@@ -819,6 +827,7 @@ def setup(self, branch, worker, test_with_PTY=False, **kwargs):
         configure_cmd = list(self.host_configure_cmd)
         configure_cmd += ["--prefix", "$(PWD)/target/host"]
         configure_cmd += self.configureFlags + self.extra_configure_flags
+        configure_cmd += worker.get_flags(branch, "configure")
         configure_cmd += [util.Interpolate("--build=%(prop:build_triple)s")]
         configure_cmd += [f"--host={self.host}"]
         configure_cmd += ["--with-build-python=../build/python"]
@@ -1142,6 +1151,7 @@ def py313_setup(self, branch, worker, test_with_PTY=False, **kwargs):
         configure_cmd = list(self.host_configure_cmd)
         configure_cmd += self.configureFlags
         configure_cmd += self.extra_configure_flags
+        configure_cmd += worker.get_flags(branch, "configure")
         configure_cmd += [
             f"--with-openssl={support_path}/openssl",
             f"--build={self.arch}-apple-darwin",
@@ -1361,7 +1371,11 @@ class ValgrindBuild(UnixBuild):
     def setup(self, branch, worker, **kwargs):
         self.addStep(
             Configure(
-                command=["./configure", "--prefix", "$(PWD)/target"] + self.configureFlags
+                command=(
+                    ["./configure", "--prefix", "$(PWD)/target"]
+                    + self.configureFlags
+                    + worker.get_flags(branch, "configure")
+                )
             )
         )
 

diff --git a/master/custom/workers.py b/master/custom/workers.py
@@ -22,6 +22,64 @@
 KEEPALIVE = 60
 
 
+class BranchWorkerFlags:
+    def __init__(
+        self,
+        *,
+        branches=None,
+        min_branch=None,
+        max_branch=None,
+        configure=(),
+        build=(),
+        test=(),
+        clean=(),
+    ):
+        if isinstance(branches, str):
+            self.branches = (branches,)
+        elif branches is not None:
+            self.branches = tuple(branches)
+        else:
+            self.branches = None
+        self.min_branch = min_branch
+        self.max_branch = max_branch
+        self.configure = self._as_tuple(configure)
+        self.build = self._as_tuple(build)
+        self.test = self._as_tuple(test)
+        self.clean = self._as_tuple(clean)
+
+    @staticmethod
+    def _as_tuple(flags):
+        if isinstance(flags, str):
+            return (flags,)
+        return tuple(flags)
+
+    def applies_to(self, branch):
+        if self.branches is not None and branch.name not in self.branches:
+            return False
+
+        if self.min_branch is None and self.max_branch is None:
+            return True
+
+        if branch.version_tuple is None:
+            return False
+        if self.min_branch is not None and branch.version_tuple < self.min_branch:
+            return False
+        if self.max_branch is not None and branch.version_tuple > self.max_branch:
+            return False
+        return True
+
+    def get(self, kind):
+        if kind == "configure":
+            return self.configure
+        if kind == "build":
+            return self.build
+        if kind == "test":
+            return self.test
+        if kind == "clean":
+            return self.clean
+        raise ValueError(f"Unknown branch worker flag kind: {kind}")
+
+
 class CPythonWorker:
     def __init__(
         self,
@@ -30,6 +88,7 @@ def __init__(
         tags=None,
         branches=None,
         not_branches=None,
+        branch_flags=(),
         parallel_builders=1,
         parallel_tests=None,
         timeout_factor=1,
@@ -40,6 +99,7 @@ def __init__(
         self.tags = tags or set()
         self.branches = branches
         self.not_branches = not_branches
+        self.branch_flags = tuple(branch_flags)
         self.parallel_tests = parallel_tests
         self.timeout_factor = timeout_factor
         self.exclude_test_resources = exclude_test_resources or []
@@ -62,6 +122,14 @@ def __init__(
                 max_builds=parallel_builders,
             )
 
+    def get_flags(self, branch, kind):
+        flags = []
+        for rule in self.branch_flags:
+            if rule.applies_to(branch):
+                flags.extend(rule.get(kind))
+        return flags
+
+
 # Some of Itamar's workers are reprovisioned every Wednesday at 9am PT.
 # Builds scheduled between 8am - 10am PT on Wednesdays will be delayed to
 # 10am PT.