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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/scripts/account_tool.py b/scripts/account_tool.py
index 7429fa3..89c614d 100644
--- a/scripts/account_tool.py
+++ b/scripts/account_tool.py
@@ -14,102 +14,121 @@
 from chromite.lib import user_db
 
 
-ACCOUNT_DB_FILENAME = 'accounts.json'
+ACCOUNT_DB_FILENAME = "accounts.json"
 
-ACTION_GET_ENTRY = 'get_entry'
-ACTION_INSTALL_USER = 'install_user'
-ACTION_INSTALL_GROUP = 'install_group'
+ACTION_GET_ENTRY = "get_entry"
+ACTION_INSTALL_USER = "install_user"
+ACTION_INSTALL_GROUP = "install_group"
 
-USER_DB = 'passwd'
-GROUP_DB = 'group'
+USER_DB = "passwd"
+GROUP_DB = "group"
 
 
 def GetOptions(argv):
-  """Returns the parsed command line arguments in |argv|."""
-  parser = commandline.ArgumentParser(description=__doc__)
-  command_parsers = parser.add_subparsers(dest='action')
+    """Returns the parsed command line arguments in |argv|."""
+    parser = commandline.ArgumentParser(description=__doc__)
+    command_parsers = parser.add_subparsers(dest="action")
 
-  get_ent_parser = command_parsers.add_parser(
-      ACTION_GET_ENTRY, help='Get an entry from an account database.')
-  get_ent_parser.add_argument(
-      '--nolock', action='store_true', default=False,
-      help='Skip locking the database before reading it.')
-  get_ent_parser.add_argument('sysroot', type='path',
-                              help='Path to sysroot containing the database')
-  get_ent_parser.add_argument('database', choices=(USER_DB, GROUP_DB),
-                              help='Name of database to get')
-  get_ent_parser.add_argument('name', type=str, help='Name of account to get')
+    get_ent_parser = command_parsers.add_parser(
+        ACTION_GET_ENTRY, help="Get an entry from an account database."
+    )
+    get_ent_parser.add_argument(
+        "--nolock",
+        action="store_true",
+        default=False,
+        help="Skip locking the database before reading it.",
+    )
+    get_ent_parser.add_argument(
+        "sysroot", type="path", help="Path to sysroot containing the database"
+    )
+    get_ent_parser.add_argument(
+        "database", choices=(USER_DB, GROUP_DB), help="Name of database to get"
+    )
+    get_ent_parser.add_argument("name", type=str, help="Name of account to get")
 
-  user_parser = command_parsers.add_parser(
-      ACTION_INSTALL_USER, help='Install a user to a sysroot')
-  user_parser.add_argument('name', type=str,
-                           help='Name of user to install')
-  user_parser.add_argument('--uid', type=int,
-                           help='UID of the user')
-  user_parser.add_argument('--shell', type='path',
-                           help='Shell of user')
-  user_parser.add_argument('--home', type='path',
-                           help='Home directory of user')
-  user_parser.add_argument('--primary_group', type=str,
-                           help='Name of primary group for user')
+    user_parser = command_parsers.add_parser(
+        ACTION_INSTALL_USER, help="Install a user to a sysroot"
+    )
+    user_parser.add_argument("name", type=str, help="Name of user to install")
+    user_parser.add_argument("--uid", type=int, help="UID of the user")
+    user_parser.add_argument("--shell", type="path", help="Shell of user")
+    user_parser.add_argument(
+        "--home", type="path", help="Home directory of user"
+    )
+    user_parser.add_argument(
+        "--primary_group", type=str, help="Name of primary group for user"
+    )
 
-  group_parser = command_parsers.add_parser(
-      ACTION_INSTALL_GROUP, help='Install a group to a sysroot')
-  group_parser.add_argument('name', type=str,
-                            help='Name of group to install.')
-  group_parser.add_argument('--gid', type=int, help='GID of the group')
+    group_parser = command_parsers.add_parser(
+        ACTION_INSTALL_GROUP, help="Install a group to a sysroot"
+    )
+    group_parser.add_argument(
+        "name", type=str, help="Name of group to install."
+    )
+    group_parser.add_argument("--gid", type=int, help="GID of the group")
 
-  # Both group and user parsers need to understand the target sysroot.
-  for sub_parser in (user_parser, group_parser):
-    sub_parser.add_argument(
-        'sysroot', type='path', help='The sysroot to install the user into')
+    # Both group and user parsers need to understand the target sysroot.
+    for sub_parser in (user_parser, group_parser):
+        sub_parser.add_argument(
+            "sysroot", type="path", help="The sysroot to install the user into"
+        )
 
-  options = parser.parse_args(argv)
-  options.Freeze()
-  return options
+    options = parser.parse_args(argv)
+    options.Freeze()
+    return options
 
 
 def main(argv):
-  cros_build_lib.AssertInsideChroot()
-  options = GetOptions(argv)
+    cros_build_lib.AssertInsideChroot()
+    options = GetOptions(argv)
 
-  if options.action == ACTION_GET_ENTRY:
-    db = user_db.UserDB(options.sysroot)
-    if options.database == USER_DB:
-      print(db.GetUserEntry(options.name, skip_lock=options.nolock))
+    if options.action == ACTION_GET_ENTRY:
+        db = user_db.UserDB(options.sysroot)
+        if options.database == USER_DB:
+            print(db.GetUserEntry(options.name, skip_lock=options.nolock))
+        else:
+            print(db.GetGroupEntry(options.name, skip_lock=options.nolock))
+        return 0
+
+    overlays = (
+        sysroot_lib.Sysroot(options.sysroot)
+        .GetStandardField(sysroot_lib.STANDARD_FIELD_PORTDIR_OVERLAY)
+        .split()
+    )
+
+    # TODO(wiley) This process could be optimized to avoid reparsing these
+    #             overlay databases each time.
+    account_db = accounts_lib.AccountDatabase()
+    for overlay_path in overlays:
+        database_path = os.path.join(overlay_path, ACCOUNT_DB_FILENAME)
+        if os.path.exists(database_path):
+            account_db.AddAccountsFromDatabase(database_path)
+
+    installed_users = user_db.UserDB(options.sysroot)
+
+    if options.action == ACTION_INSTALL_USER:
+        account_db.InstallUser(
+            options.name,
+            installed_users,
+            uid=options.uid,
+            shell=options.shell,
+            homedir=options.home,
+            primary_group=options.primary_group,
+        )
+
+        homedir = account_db.users[options.name].home
+        homedir_path = os.path.join(options.sysroot, homedir)
+
+        if homedir != "/dev/null" and not os.path.exists(homedir_path):
+            osutils.SafeMakedirs(homedir_path, sudo=True)
+            uid = account_db.users[options.name].uid
+            cros_build_lib.sudo_run(
+                ["chown", "%d:%d" % (uid, uid), homedir_path], print_cmd=False
+            )
+
+    elif options.action == ACTION_INSTALL_GROUP:
+        account_db.InstallGroup(options.name, installed_users, gid=options.gid)
     else:
-      print(db.GetGroupEntry(options.name, skip_lock=options.nolock))
-    return 0
-
-  overlays = sysroot_lib.Sysroot(options.sysroot).GetStandardField(
-      sysroot_lib.STANDARD_FIELD_PORTDIR_OVERLAY).split()
-
-  # TODO(wiley) This process could be optimized to avoid reparsing these
-  #             overlay databases each time.
-  account_db = accounts_lib.AccountDatabase()
-  for overlay_path in overlays:
-    database_path = os.path.join(overlay_path, ACCOUNT_DB_FILENAME)
-    if os.path.exists(database_path):
-      account_db.AddAccountsFromDatabase(database_path)
-
-  installed_users = user_db.UserDB(options.sysroot)
-
-  if options.action == ACTION_INSTALL_USER:
-    account_db.InstallUser(options.name, installed_users,
-                           uid=options.uid, shell=options.shell,
-                           homedir=options.home,
-                           primary_group=options.primary_group)
-
-    homedir = account_db.users[options.name].home
-    homedir_path = os.path.join(options.sysroot, homedir)
-
-    if homedir != '/dev/null' and not os.path.exists(homedir_path):
-      osutils.SafeMakedirs(homedir_path, sudo=True)
-      uid = account_db.users[options.name].uid
-      cros_build_lib.sudo_run(
-          ['chown', '%d:%d' % (uid, uid), homedir_path], print_cmd=False)
-
-  elif options.action == ACTION_INSTALL_GROUP:
-    account_db.InstallGroup(options.name, installed_users, gid=options.gid)
-  else:
-    cros_build_lib.Die('Unsupported account type: %s' % options.account_type)
+        cros_build_lib.Die(
+            "Unsupported account type: %s" % options.account_type
+        )