1 files changed, 61 insertions, 0 deletions
diff --git a/taskcluster/taskgraph/util/platforms.py b/taskcluster/taskgraph/util/platforms.py
new file mode 100644
index 0000000000..8f68eb8809
--- /dev/null
+++ b/taskcluster/taskgraph/util/platforms.py
@@ -0,0 +1,61 @@
+# 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
+
+from .attributes import keymatch
+
+# platform family is extracted from build platform by taking the alphabetic prefix
+# and then translating win -> windows
+_platform_re = re.compile(r"^[a-z]*")
+_renames = {"win": "windows"}
+
+
+_archive_formats = {
+    "linux": ".tar.bz2",
+    "macosx": ".tar.gz",
+    "windows": ".zip",
+}
+
+_executable_extension = {
+    "linux": "",
+    "macosx": "",
+    "windows": ".exe",
+}
+
+_architectures = {
+    r"linux\b.*": "x86",
+    r"linux64\b.*": "x86_64",
+    r"macosx64\b.*": "macos-x86_64-aarch64",
+    r"win32\b.*": "x86",
+    r"win64\b(?!-aarch64).*": "x86_64",
+    r"win64-aarch64\b.*": "aarch64",
+}
+
+
+def platform_family(build_platform):
+    """Given a build platform, return the platform family (linux, macosx, etc.)"""
+    family = _platform_re.match(build_platform).group(0)
+    return _renames.get(family, family)
+
+
+def archive_format(build_platform):
+    """Given a build platform, return the archive format used on the platform."""
+    return _archive_formats[platform_family(build_platform)]
+
+
+def executable_extension(build_platform):
+    """Given a build platform, return the executable extension used on the platform."""
+    return _executable_extension[platform_family(build_platform)]
+
+
+def architecture(build_platform):
+    matches = keymatch(_architectures, build_platform)
+    if len(matches) == 1:
+        return matches[0]
+    raise Exception(
+        "Could not determine architecture of platform `{}`.".format(build_platform)
+    )