Make file list by partitions for all lunch targets

1. Filtered out the Android.mk file if the Make modules on them are
   not in the PRODUCT_PACKAGES or the correspoding deps;
2. Merged the Android.mk file list by partitions for all lunch targets.

Bug: 225256154
Test: lunch aosp_coral-eng; m
out/target/product/coral/mk2bp_remaining.html
Test: python3 build/make/tools/mk2bp_partition.py

Change-Id: I40919e81ab3c6bd516379f0acd72932e8db50088

1 files changed, 100 insertions, 0 deletions

diff --git a/tools/mk2bp_partition.py b/tools/mk2bp_partition.py
new file mode 100644
index 0000000000..30c1135969
--- /dev/null
+++ b/tools/mk2bp_partition.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python3
+
+"""
+The complete list of the remaining Make files in each partition for all lunch targets
+
+How to run?
+python3 $(path-to-file)/mk2bp_partition.py
+"""
+
+from pathlib import Path
+
+import csv
+import datetime
+import os
+import shutil
+import subprocess
+import sys
+import time
+
+def get_top():
+  path = '.'
+  while not os.path.isfile(os.path.join(path, 'build/soong/soong_ui.bash')):
+    if os.path.abspath(path) == '/':
+      sys.exit('Could not find android source tree root.')
+    path = os.path.join(path, '..')
+  return os.path.abspath(path)
+
+# get the values of a build variable
+def get_build_var(variable, product, build_variant):
+  """Returns the result of the shell command get_build_var."""
+  env = {
+      **os.environ,
+      'TARGET_PRODUCT': product if product else '',
+      'TARGET_BUILD_VARIANT': build_variant if build_variant else '',
+  }
+  return subprocess.run([
+      'build/soong/soong_ui.bash',
+      '--dumpvar-mode',
+      variable
+  ], check=True, capture_output=True, env=env, text=True).stdout.strip()
+
+def get_make_file_partitions():
+    lunch_targets = set(get_build_var("all_named_products", "", "").split())
+    total_lunch_targets = len(lunch_targets)
+    makefile_by_partition = dict()
+    partitions = set()
+    current_count = 0
+    start_time = time.time()
+    # cannot run command `m lunch_target`
+    broken_targets = {"mainline_sdk", "ndk"}
+    for lunch_target in sorted(lunch_targets):
+        current_count += 1
+        current_time = time.time()
+        print (current_count, "/", total_lunch_targets, lunch_target, datetime.timedelta(seconds=current_time - start_time))
+        if lunch_target in broken_targets:
+            continue
+        installed_product_out = get_build_var("PRODUCT_OUT", lunch_target, "userdebug")
+        filename = os.path.join(installed_product_out, "mk2bp_remaining.csv")
+        copy_filename = os.path.join(installed_product_out, lunch_target + "_mk2bp_remaining.csv")
+        # only generate if not exists
+        if not os.path.exists(copy_filename):
+            bash_cmd = "bash build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=" + lunch_target
+            bash_cmd += " TARGET_BUILD_VARIANT=userdebug " + filename
+            subprocess.run(bash_cmd, shell=True, text=True, check=True, stdout=subprocess.DEVNULL)
+            # generate a copied .csv file, to avoid possible overwritings
+            with open(copy_filename, "w") as file:
+                shutil.copyfile(filename, copy_filename)
+
+        # open mk2bp_remaining.csv file
+        with open(copy_filename, "r") as csvfile:
+            reader = csv.reader(csvfile, delimiter=",", quotechar='"')
+            # bypass the header row
+            next(reader, None)
+            for row in reader:
+                # read partition information
+                partition = row[2]
+                makefile_by_partition.setdefault(partition, set()).add(row[0])
+                partitions.add(partition)
+
+    # write merged make file list for each partition into a csv file
+    installed_path = Path(installed_product_out).parents[0].as_posix()
+    csv_path = installed_path + "/mk2bp_partition.csv"
+    with open(csv_path, "wt") as csvfile:
+        writer = csv.writer(csvfile, delimiter=",")
+        count_makefile = 0
+        for partition in sorted(partitions):
+            number_file = len(makefile_by_partition[partition])
+            count_makefile += number_file
+            writer.writerow([partition, number_file])
+            for makefile in sorted(makefile_by_partition[partition]):
+                writer.writerow([makefile])
+        row = ["The total count of make files is ", count_makefile]
+        writer.writerow(row)
+
+def main():
+    os.chdir(get_top())
+    get_make_file_partitions()
+
+if __name__ == "__main__":
+    main()