Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/tools/tryselect/tasks.py b/tools/tryselect/tasks.py
new file mode 100644
index 0000000000..ebba24415e
--- /dev/null
+++ b/tools/tryselect/tasks.py
@@ -0,0 +1,173 @@
+# 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 __future__ import absolute_import, print_function, unicode_literals
+
+import json
+import os
+import re
+import sys
+from collections import defaultdict
+
+from mozboot.util import get_state_dir
+from mozbuild.base import MozbuildObject
+from mozpack.files import FileFinder
+from moztest.resolve import TestResolver, TestManifestLoader, get_suite_definition
+
+import taskgraph
+from taskgraph.generator import TaskGraphGenerator
+from taskgraph.parameters import (
+    ParameterMismatch,
+    parameters_loader,
+)
+from taskgraph.taskgraph import TaskGraph
+
+here = os.path.abspath(os.path.dirname(__file__))
+build = MozbuildObject.from_environment(cwd=here)
+
+PARAMETER_MISMATCH = """
+ERROR - The parameters being used to generate tasks differ from those expected
+by your working copy:
+
+    {}
+
+To fix this, either rebase onto the latest mozilla-central or pass in
+-p/--parameters. For more information on how to define parameters, see:
+https://firefox-source-docs.mozilla.org/taskcluster/taskcluster/mach.html#parameters
+"""
+
+
+def invalidate(cache):
+    try:
+        cmod = os.path.getmtime(cache)
+    except OSError as e:
+        # File does not exist. We catch OSError rather than use `isfile`
+        # because the recommended watchman hook could possibly invalidate the
+        # cache in-between the check to `isfile` and the call to `getmtime`
+        # below.
+        if e.errno == 2:
+            return
+        raise
+
+    tc_dir = os.path.join(build.topsrcdir, "taskcluster")
+    tmod = max(os.path.getmtime(os.path.join(tc_dir, p)) for p, _ in FileFinder(tc_dir))
+
+    if tmod > cmod:
+        os.remove(cache)
+
+
+def generate_tasks(params=None, full=False, disable_target_task_filter=False):
+    cache_dir = os.path.join(get_state_dir(srcdir=True), "cache", "taskgraph")
+    attr = "full_task_set" if full else "target_task_set"
+    cache = os.path.join(cache_dir, attr)
+
+    invalidate(cache)
+    if os.path.isfile(cache):
+        with open(cache, "r") as fh:
+            return TaskGraph.from_json(json.load(fh))[1]
+
+    if not os.path.isdir(cache_dir):
+        os.makedirs(cache_dir)
+
+    print("Task configuration changed, generating {}".format(attr.replace("_", " ")))
+
+    taskgraph.fast = True
+    cwd = os.getcwd()
+    os.chdir(build.topsrcdir)
+
+    root = os.path.join(build.topsrcdir, "taskcluster", "ci")
+    target_tasks_method = (
+        "try_select_tasks"
+        if not disable_target_task_filter
+        else "try_select_tasks_uncommon"
+    )
+    params = parameters_loader(
+        params,
+        strict=False,
+        overrides={
+            "try_mode": "try_select",
+            "target_tasks_method": target_tasks_method,
+        },
+    )
+
+    # Cache both full_task_set and target_task_set regardless of whether or not
+    # --full was requested. Caching is cheap and can potentially save a lot of
+    # time.
+    generator = TaskGraphGenerator(root_dir=root, parameters=params)
+
+    def generate(attr):
+        try:
+            tg = getattr(generator, attr)
+        except ParameterMismatch as e:
+            print(PARAMETER_MISMATCH.format(e.args[0]))
+            sys.exit(1)
+
+        # write cache
+        with open(os.path.join(cache_dir, attr), "w") as fh:
+            json.dump(tg.to_json(), fh)
+        return tg
+
+    tg_full = generate("full_task_set")
+    tg_target = generate("target_task_set")
+    # discard results from these, we only need cache.
+    if full:
+        generate("full_task_graph")
+    generate("target_task_graph")
+
+    os.chdir(cwd)
+    if full:
+        return tg_full
+    return tg_target
+
+
+def filter_tasks_by_paths(tasks, paths):
+    resolver = TestResolver.from_environment(cwd=here, loader_cls=TestManifestLoader)
+    run_suites, run_tests = resolver.resolve_metadata(paths)
+    flavors = set([(t["flavor"], t.get("subsuite")) for t in run_tests])
+
+    task_regexes = set()
+    for flavor, subsuite in flavors:
+        _, suite = get_suite_definition(flavor, subsuite, strict=True)
+        if "task_regex" not in suite:
+            print(
+                "warning: no tasks could be resolved from flavor '{}'{}".format(
+                    flavor, " and subsuite '{}'".format(subsuite) if subsuite else ""
+                )
+            )
+            continue
+
+        task_regexes.update(suite["task_regex"])
+
+    def match_task(task):
+        return any(re.search(pattern, task) for pattern in task_regexes)
+
+    return filter(match_task, tasks)
+
+
+def resolve_tests_by_suite(paths):
+    resolver = TestResolver.from_environment(cwd=here, loader_cls=TestManifestLoader)
+    _, run_tests = resolver.resolve_metadata(paths)
+
+    suite_to_tests = defaultdict(list)
+
+    # A dictionary containing all the input paths that we haven't yet
+    # assigned to a specific test flavor.
+    remaining_paths_by_suite = defaultdict(lambda: set(paths))
+
+    for test in run_tests:
+        key, _ = get_suite_definition(test["flavor"], test.get("subsuite"), strict=True)
+
+        test_path = test.get("srcdir_relpath")
+        if test_path is None:
+            continue
+        found_path = None
+        for path in remaining_paths_by_suite[key]:
+            if test_path.startswith(path) or test.get("manifest_relpath") == path:
+                found_path = path
+                break
+        if found_path:
+            suite_to_tests[key].append(found_path)
+            remaining_paths_by_suite[key].remove(found_path)
+
+    return suite_to_tests