Fix packaging outputs commands

There were a few issues with the output packaging process that were
found during testing of the general-tests optimization.

First and foremost is that the packaging commands were trying to be
created before the build ran, when the outputs don't exist. I've changed
the logic to just collect the methods themselves which will then be run
during build plan execution after the build has completed.

A few other smaller issues include fixing the path to the soong_zip
binary, incorrect execution of the soong dumpvars command, and not
building the shared libs zip.

Test: atest build_test_suites_test; atest optimized_targets_test
Bug: 358215235
Change-Id: I8a3f54738f8bb5d871aadf7423844076c38b54a6

ci/optimized_targets.py

@@ -121,13 +121,13 @@ class OptimizedBuildTarget(ABC):
     process_result = subprocess.run(
         args=[
             f'{src_top / self._SOONG_UI_BASH_PATH}',
-            '--dumpvar-mode',
-            '--abs',
-            soong_vars,
+            '--dumpvars-mode',
+            f'--abs-vars={" ".join(soong_vars)}',
         ],
         env=os.environ,
         check=False,
         capture_output=True,
+        text=True,
     )
     if not process_result.returncode == 0:
       logging.error('soong dumpvars command failed! stderr:')
@@ -142,7 +142,7 @@ class OptimizedBuildTarget(ABC):
     try:
       return {
           line.split('=')[0]: line.split('=')[1].strip("'")
-          for line in process_result.stdout.split('\n')
+          for line in process_result.stdout.strip().split('\n')
       }
     except IndexError as e:
       raise RuntimeError(
@@ -214,10 +214,13 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
   normally built.
   """
 
-  # List of modules that are always required to be in general-tests.zip.
-  _REQUIRED_MODULES = frozenset(
-      ['cts-tradefed', 'vts-tradefed', 'compatibility-host-util']
-  )
+  # List of modules that are built alongside general-tests as dependencies.
+  _REQUIRED_MODULES = frozenset([
+      'cts-tradefed',
+      'vts-tradefed',
+      'compatibility-host-util',
+      'general-tests-shared-libs',
+  ])
 
   def get_build_targets_impl(self) -> set[str]:
     change_info_file_path = os.environ.get('CHANGE_INFO')
@@ -286,6 +289,10 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
     host_config_files = []
     target_config_files = []
     for module in self.modules_to_build:
+      # The required modules are handled separately, no need to package.
+      if module in self._REQUIRED_MODULES:
+        continue
+
       host_path = host_out_testcases / module
       if os.path.exists(host_path):
         host_paths.append(host_path)
@@ -303,6 +310,7 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
 
     zip_commands.extend(
         self._get_zip_test_configs_zips_commands(
+            src_top,
             dist_dir,
             host_out,
             product_out,
@@ -311,27 +319,27 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
         )
     )
 
-    zip_command = self._base_zip_command(
-        host_out, dist_dir, 'general-tests.zip'
-    )
+    zip_command = self._base_zip_command(src_top, dist_dir, 'general-tests.zip')
 
     # Add host testcases.
-    zip_command.extend(
-        self._generate_zip_options_for_items(
-            prefix='host',
-            relative_root=f'{src_top / soong_host_out}',
-            directories=host_paths,
-        )
-    )
+    if host_paths:
+      zip_command.extend(
+          self._generate_zip_options_for_items(
+              prefix='host',
+              relative_root=f'{src_top / soong_host_out}',
+              directories=host_paths,
+          )
+      )
 
     # Add target testcases.
-    zip_command.extend(
-        self._generate_zip_options_for_items(
-            prefix='target',
-            relative_root=f'{src_top / product_out}',
-            directories=target_paths,
-        )
-    )
+    if target_paths:
+      zip_command.extend(
+          self._generate_zip_options_for_items(
+              prefix='target',
+              relative_root=f'{src_top / product_out}',
+              directories=target_paths,
+          )
+      )
 
     # TODO(lucafarsi): Push this logic into a general-tests-minimal build command
     # Add necessary tools. These are also hardcoded in general-tests.mk.
@@ -365,6 +373,7 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
 
   def _get_zip_test_configs_zips_commands(
       self,
+      src_top: pathlib.Path,
       dist_dir: pathlib.Path,
       host_out: pathlib.Path,
       product_out: pathlib.Path,
@@ -428,7 +437,7 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
     zip_commands = []
 
     tests_config_zip_command = self._base_zip_command(
-        host_out, dist_dir, 'general-tests_configs.zip'
+        src_top, dist_dir, 'general-tests_configs.zip'
     )
     tests_config_zip_command.extend(
         self._generate_zip_options_for_items(
@@ -442,16 +451,14 @@ class GeneralTestsOptimizer(OptimizedBuildTarget):
         self._generate_zip_options_for_items(
             prefix='target',
             relative_root=str(product_out),
-            list_files=[
-                f"{product_out / 'target_general-tests_list'}"
-            ],
+            list_files=[f"{product_out / 'target_general-tests_list'}"],
         ),
     )
 
     zip_commands.append(tests_config_zip_command)
 
     tests_list_zip_command = self._base_zip_command(
-        host_out, dist_dir, 'general-tests_list.zip'
+        src_top, dist_dir, 'general-tests_list.zip'
     )
     tests_list_zip_command.extend(
         self._generate_zip_options_for_items(