1 files changed, 114 insertions, 0 deletions
diff --git a/taskcluster/gecko_taskgraph/transforms/beetmover_apt.py b/taskcluster/gecko_taskgraph/transforms/beetmover_apt.py
new file mode 100644
index 0000000000..8c56f1a968
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+++ b/taskcluster/gecko_taskgraph/transforms/beetmover_apt.py
@@ -0,0 +1,114 @@
+# 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 itertools import islice
+
+from taskgraph import MAX_DEPENDENCIES
+from taskgraph.transforms.base import TransformSequence
+
+from gecko_taskgraph.util.platforms import architecture
+from gecko_taskgraph.util.scriptworker import (
+    generate_artifact_registry_gcs_sources,
+    get_beetmover_apt_repo_scope,
+    get_beetmover_repo_action_scope,
+)
+
+transforms = TransformSequence()
+
+
+@transforms.add
+def beetmover_apt(config, tasks):
+    product = (
+        "firefox"
+        if not config.params["release_type"]  # try
+        or config.params["release_type"] == "nightly"
+        else config.params["release_product"]
+    )
+    filtered_tasks = filter_beetmover_apt_tasks(tasks, product)
+    # There are too many beetmover-repackage dependencies for a single task
+    # and we hit the taskgraph dependencies limit.
+    # To work around this limitation, we chunk the would be task
+    # into tasks dependendent on, at most, half of MAX_DEPENDENCIES.
+    batches = batched(filtered_tasks, MAX_DEPENDENCIES // 2)
+    for index, batch in enumerate(batches):
+        dependencies = {}
+        gcs_sources = []
+        for task in batch:
+            dep = task["primary-dependency"]
+            dependencies[dep.label] = dep.label
+            gcs_sources.extend(generate_artifact_registry_gcs_sources(dep))
+        description = f"Batch {index + 1} of beetmover APT submissions for the {config.params['release_type']} .deb packages"
+        platform = "firefox-release/opt"
+        treeherder = {
+            "platform": platform,
+            "tier": 1,
+            "kind": "other",
+            "symbol": f"BM-apt(batch-{index + 1})",
+        }
+        apt_repo_scope = get_beetmover_apt_repo_scope(config)
+        repo_action_scope = get_beetmover_repo_action_scope(config)
+        attributes = {
+            "required_signoffs": ["mar-signing"],
+            "shippable": True,
+            "shipping_product": product,
+        }
+        task = {
+            "label": f"{config.kind}-{index + 1}-{platform}",
+            "description": description,
+            "worker-type": "beetmover",
+            "treeherder": treeherder,
+            "scopes": [apt_repo_scope, repo_action_scope],
+            "attributes": attributes,
+            "shipping-phase": "ship",
+            "shipping-product": product,
+            "dependencies": dependencies,
+        }
+        worker = {
+            "implementation": "beetmover-import-from-gcs-to-artifact-registry",
+            "product": product,
+            "gcs-sources": gcs_sources,
+        }
+        task["worker"] = worker
+        yield task
+
+
+def batched(iterable, n):
+    "Batch data into tuples of length n. The last batch may be shorter."
+    # batched('ABCDEFG', 3) --> ABC DEF G
+    if n < 1:
+        raise ValueError("n must be at least one")
+    it = iter(iterable)
+    batch = tuple(islice(it, n))
+    while batch:
+        yield batch
+        batch = tuple(islice(it, n))
+
+
+def filter_beetmover_apt_tasks(tasks, product):
+    return (task for task in tasks if filter_beetmover_apt_task(task, product))
+
+
+def filter_beetmover_apt_task(task, product):
+    # We only create beetmover-apt tasks for l10n beetmover-repackage tasks that
+    # beetmove langpack .deb packages. The langpack .deb packages support all
+    # architectures, so we generate them only on x86_64 tasks.
+    return (
+        is_x86_64_l10n_task(task) or is_not_l10n_task(task)
+    ) and is_task_for_product(task, product)
+
+
+def is_x86_64_l10n_task(task):
+    dep = task["primary-dependency"]
+    locale = dep.attributes.get("locale")
+    return locale and architecture(dep.attributes["build_platform"]) == "x86_64"
+
+
+def is_not_l10n_task(task):
+    dep = task["primary-dependency"]
+    locale = dep.attributes.get("locale")
+    return not locale
+
+
+def is_task_for_product(task, product):
+    dep = task["primary-dependency"]
+    return dep.attributes.get("shipping_product") == product