1 files changed, 73 insertions, 0 deletions
diff --git a/taskcluster/taskgraph/transforms/build_fat_aar.py b/taskcluster/taskgraph/transforms/build_fat_aar.py
new file mode 100644
index 0000000000..2cd111040c
--- /dev/null
+++ b/taskcluster/taskgraph/transforms/build_fat_aar.py
@@ -0,0 +1,73 @@
+# 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 copy
+
+from taskgraph.transforms.base import TransformSequence
+from taskgraph.util.declarative_artifacts import get_geckoview_upstream_artifacts
+from taskgraph.util.taskcluster import get_artifact_prefix
+
+
+transforms = TransformSequence()
+
+
+MOZ_ANDROID_FAT_AAR_ENV_MAP = {
+    "android-api-16-shippable": "MOZ_ANDROID_FAT_AAR_ARMEABI_V7A",
+    "android-aarch64-shippable": "MOZ_ANDROID_FAT_AAR_ARM64_V8A",
+    "android-x86-shippable": "MOZ_ANDROID_FAT_AAR_X86",
+    "android-x86_64-shippable": "MOZ_ANDROID_FAT_AAR_X86_64",
+    "android-api-16-opt": "MOZ_ANDROID_FAT_AAR_ARMEABI_V7A",
+    "android-aarch64-opt": "MOZ_ANDROID_FAT_AAR_ARM64_V8A",
+    "android-x86-opt": "MOZ_ANDROID_FAT_AAR_X86",
+    "android-x86_64-opt": "MOZ_ANDROID_FAT_AAR_X86_64",
+}
+
+
+@transforms.add
+def set_fetches_and_locations(config, jobs):
+    """Set defaults, including those that differ per worker implementation"""
+    for job in jobs:
+        dependencies = copy.deepcopy(job["dependencies"])
+
+        for platform, label in dependencies.items():
+            job["dependencies"] = {"build": label}
+
+            aar_location = _get_aar_location(config, job, platform)
+            prefix = get_artifact_prefix(job)
+            if not prefix.endswith("/"):
+                prefix = prefix + "/"
+            if aar_location.startswith(prefix):
+                aar_location = aar_location[len(prefix) :]
+
+            job.setdefault("fetches", {}).setdefault(platform, []).append(
+                {
+                    "artifact": aar_location,
+                    "extract": False,
+                }
+            )
+
+            aar_file_name = aar_location.split("/")[-1]
+            env_var = MOZ_ANDROID_FAT_AAR_ENV_MAP[platform]
+            job["worker"]["env"][env_var] = aar_file_name
+
+        job["dependencies"] = dependencies
+
+        yield job
+
+
+def _get_aar_location(config, job, platform):
+    artifacts_locations = get_geckoview_upstream_artifacts(
+        config, job, platform=platform
+    )
+    aar_locations = [
+        path for path in artifacts_locations[0]["paths"] if path.endswith(".aar")
+    ]
+    if len(aar_locations) != 1:
+        raise ValueError(
+            "Only a single AAR must be given. Got: {}".format(aar_locations)
+        )
+
+    return aar_locations[0]