1 files changed, 118 insertions, 0 deletions
diff --git a/tools/tryselect/selectors/auto.py b/tools/tryselect/selectors/auto.py
new file mode 100644
index 0000000000..e7cc6c508c
--- /dev/null
+++ b/tools/tryselect/selectors/auto.py
@@ -0,0 +1,118 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+from taskgraph.util.python_path import find_object
+
+from ..cli import BaseTryParser
+from ..push import push_to_try
+from ..util.dicttools import merge
+
+TRY_AUTO_PARAMETERS = {
+    "optimize_strategies": "gecko_taskgraph.optimize:tryselect.bugbug_reduced_manifests_config_selection_medium",  # noqa
+    "optimize_target_tasks": True,
+    "target_tasks_method": "try_auto",
+    "test_manifest_loader": "bugbug",
+    "try_mode": "try_auto",
+    "try_task_config": {},
+}
+
+
+class AutoParser(BaseTryParser):
+    name = "auto"
+    common_groups = ["push"]
+    task_configs = [
+        "artifact",
+        "env",
+        "chemspill-prio",
+        "disable-pgo",
+        "worker-overrides",
+    ]
+    arguments = [
+        [
+            ["--strategy"],
+            {
+                "default": None,
+                "help": "Override the default optimization strategy. Valid values "
+                "are the experimental strategies defined at the bottom of "
+                "`taskcluster/gecko_taskgraph/optimize/__init__.py`.",
+            },
+        ],
+        [
+            ["--tasks-regex"],
+            {
+                "default": [],
+                "action": "append",
+                "help": "Apply a regex filter to the tasks selected. Specifying "
+                "multiple times schedules the union of computed tasks.",
+            },
+        ],
+        [
+            ["--tasks-regex-exclude"],
+            {
+                "default": [],
+                "action": "append",
+                "help": "Apply a regex filter to the tasks selected. Specifying "
+                "multiple times excludes computed tasks matching any regex.",
+            },
+        ],
+    ]
+
+    def validate(self, args):
+        super().validate(args)
+
+        if args.strategy:
+            if ":" not in args.strategy:
+                args.strategy = "gecko_taskgraph.optimize:tryselect.{}".format(
+                    args.strategy
+                )
+
+            try:
+                obj = find_object(args.strategy)
+            except (ImportError, AttributeError):
+                self.error("invalid module path '{}'".format(args.strategy))
+
+            if not isinstance(obj, dict):
+                self.error("object at '{}' must be a dict".format(args.strategy))
+
+
+def run(
+    message="{msg}",
+    stage_changes=False,
+    dry_run=False,
+    closed_tree=False,
+    strategy=None,
+    tasks_regex=None,
+    tasks_regex_exclude=None,
+    try_config_params=None,
+    push_to_lando=False,
+    **ignored
+):
+    msg = message.format(msg="Tasks automatically selected.")
+
+    params = TRY_AUTO_PARAMETERS.copy()
+    if try_config_params:
+        params = merge(params, try_config_params)
+
+    if strategy:
+        params["optimize_strategies"] = strategy
+
+    if tasks_regex or tasks_regex_exclude:
+        params.setdefault("try_task_config", {})["tasks-regex"] = {}
+        params["try_task_config"]["tasks-regex"]["include"] = tasks_regex
+        params["try_task_config"]["tasks-regex"]["exclude"] = tasks_regex_exclude
+
+    task_config = {
+        "version": 2,
+        "parameters": params,
+    }
+    return push_to_try(
+        "auto",
+        msg,
+        try_task_config=task_config,
+        stage_changes=stage_changes,
+        dry_run=dry_run,
+        closed_tree=closed_tree,
+        push_to_lando=push_to_lando,
+    )