1 files changed, 163 insertions, 0 deletions
diff --git a/taskcluster/taskgraph/util/attributes.py b/taskcluster/taskgraph/util/attributes.py
new file mode 100644
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+++ b/taskcluster/taskgraph/util/attributes.py
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+# 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 re
+
+import six
+
+
+INTEGRATION_PROJECTS = {
+    "autoland",
+}
+
+TRUNK_PROJECTS = INTEGRATION_PROJECTS | {"mozilla-central", "comm-central"}
+
+RELEASE_PROJECTS = {
+    "mozilla-central",
+    "mozilla-beta",
+    "mozilla-release",
+    "mozilla-esr78",
+    "comm-central",
+    "comm-beta",
+    "comm-esr78",
+    "oak",
+}
+
+RELEASE_PROMOTION_PROJECTS = {
+    "jamun",
+    "maple",
+    "try",
+    "try-comm-central",
+} | RELEASE_PROJECTS
+
+TEMPORARY_PROJECTS = set(
+    {
+        # When using a "Disposeabel Project Branch" you can specify your branch here. e.g.:
+        # 'oak',
+    }
+)
+
+ALL_PROJECTS = RELEASE_PROMOTION_PROJECTS | TRUNK_PROJECTS | TEMPORARY_PROJECTS
+
+RUN_ON_PROJECT_ALIASES = {
+    # key is alias, value is lambda to test it against
+    "all": lambda project: True,
+    "integration": lambda project: project in INTEGRATION_PROJECTS,
+    "release": lambda project: project in RELEASE_PROJECTS,
+    "trunk": lambda project: project in TRUNK_PROJECTS,
+}
+
+_COPYABLE_ATTRIBUTES = (
+    "accepted-mar-channel-ids",
+    "artifact_map",
+    "artifact_prefix",
+    "build_platform",
+    "build_type",
+    "l10n_chunk",
+    "locale",
+    "mar-channel-id",
+    "nightly",
+    "required_signoffs",
+    "shippable",
+    "shipping_phase",
+    "shipping_product",
+    "signed",
+    "stub-installer",
+    "update-channel",
+)
+
+
+def attrmatch(attributes, **kwargs):
+    """Determine whether the given set of task attributes matches.  The
+    conditions are given as keyword arguments, where each keyword names an
+    attribute.  The keyword value can be a literal, a set, or a callable.  A
+    literal must match the attribute exactly.  Given a set, the attribute value
+    must be in the set.  A callable is called with the attribute value.  If an
+    attribute is specified as a keyword argument but not present in the
+    attributes, the result is False."""
+    for kwkey, kwval in six.iteritems(kwargs):
+        if kwkey not in attributes:
+            return False
+        attval = attributes[kwkey]
+        if isinstance(kwval, set):
+            if attval not in kwval:
+                return False
+        elif callable(kwval):
+            if not kwval(attval):
+                return False
+        elif kwval != attributes[kwkey]:
+            return False
+    return True
+
+
+def keymatch(attributes, target):
+    """Determine if any keys in attributes are a match to target, then return
+    a list of matching values. First exact matches will be checked. Failing
+    that, regex matches and finally a default key.
+    """
+    # exact match
+    if target in attributes:
+        return [attributes[target]]
+
+    # regular expression match
+    matches = [v for k, v in six.iteritems(attributes) if re.match(k + "$", target)]
+    if matches:
+        return matches
+
+    # default
+    if "default" in attributes:
+        return [attributes["default"]]
+
+    return []
+
+
+def match_run_on_projects(project, run_on_projects):
+    """Determine whether the given project is included in the `run-on-projects`
+    parameter, applying expansions for things like "integration" mentioned in
+    the attribute documentation."""
+    aliases = RUN_ON_PROJECT_ALIASES.keys()
+    run_aliases = set(aliases) & set(run_on_projects)
+    if run_aliases:
+        if any(RUN_ON_PROJECT_ALIASES[alias](project) for alias in run_aliases):
+            return True
+
+    return project in run_on_projects
+
+
+def match_run_on_hg_branches(hg_branch, run_on_hg_branches):
+    """Determine whether the given project is included in the `run-on-hg-branches`
+    parameter. Allows 'all'."""
+    if "all" in run_on_hg_branches:
+        return True
+
+    for expected_hg_branch_pattern in run_on_hg_branches:
+        if re.match(expected_hg_branch_pattern, hg_branch):
+            return True
+
+    return False
+
+
+def copy_attributes_from_dependent_job(dep_job, denylist=()):
+    return {
+        attr: dep_job.attributes[attr]
+        for attr in _COPYABLE_ATTRIBUTES
+        if attr in dep_job.attributes and attr not in denylist
+    }
+
+
+def sorted_unique_list(*args):
+    """Join one or more lists, and return a sorted list of unique members"""
+    combined = set().union(*args)
+    return sorted(combined)
+
+
+def release_level(project):
+    """
+    Whether this is a staging release or not.
+
+    :return six.text_type: One of "production" or "staging".
+    """
+    return "production" if project in RELEASE_PROJECTS else "staging"