使用python 和 lint 删除项目无用资源的方法

lint --check UnusedResources --xml [resultPath] [projectPath]

def exec_lint_command():
 cmd = 'lint --check UnusedResources --xml %s %s' % (_get_lint_result_path(), _get_project_dir_path())
 p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE, stderr=subprocess.PIPE)
 c = p.stdout.readline().decode()
 while c:
  print(c)
  c = p.stdout.readline().decode()

<issue
  id="UnusedResources"
  severity="Warning"
  message="The resource `R.layout.activity_all_player` appears to be unused"
  category="Performance"
  priority="3"
  summary="Unused resources"
  explanation="Unused resources make applications larger and slow down builds."
  errorLine1="<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
"
  errorLine2="^"
  quickfix="studio">
  <location
   file="res\layout\activity_all_player.xml"
   line="2"
   column="1"/>
 </issue>

def _parse_lint_report():
 file = minidom.parse(_get_lint_result_path())
 root = file.documentElement
 beans = _parse_xml(root)
 return beans

def _parse_xml(element, beans=None):
 if beans is None:
  beans = []
 for node in element.childNodes:
  if node.nodeName == ISSUE_KEY and node.nodeType is node.ELEMENT_NODE:
   lint_bean = _LintBean()
   lint_bean.id = node.getAttribute(ID_KEY)
   lint_bean.severity = node.getAttribute(SEVERITY_KEY)
   lint_bean.message = node.getAttribute(MESSAGE_KEY)
   _parse_location(node, lint_bean)
   lint_bean.print()
   beans.append(lint_bean)
 return beans

def _parse_location(node, bean):
 if not node.hasChildNodes():
  return
 for child in node.childNodes:
  if child.nodeName == LOCATION_KEY and node.nodeType is node.ELEMENT_NODE:
   bean.location.file = child.getAttribute(LOCATION_FILE_KEY)
   bean.location.line = child.getAttribute(LOCATION_LINE_KEY)
   bean.location.column = child.getAttribute(LOCATION_COLUMN_KEY)

class _Location(object):
 def __init__(self):
  self.file = ''
  self.line = 0
  self.column = 0

class _LintBean(object):
 def __init__(self):
  self.id = ''
  self.severity = ''
  self.message = ''
  self.location = _Location()

 def print(self):
  print('find a %s, cause: %s. filePath: %s. line: %s' % (
   self.id, self.message, self.location.file, self.location.line))

for lint in lint_result:
 total_unused_resource += 1
 if lint.id != 'UnusedResources':
  continue
 if lint.location.line != '':
  is_single = _is_single_node(lint.location.file)
  if is_single:
   total_del_file += 1
   del_file(lint.location.file)
  else:
   total_remove_attr += 1
   node_name = get_node_name(lint.message)
   del_node(lint.location.file, node_name)
 else:
  total_del_file += 1
  del_file(lint.location.file)

def del_file(file_path):
 try:
  os.remove(file_path)
  print('remove %s success.' % file_path)
 except FileNotFoundError:
  print('remove %s error.' % file_path)

def del_node(file_path, node_name):
 file = minidom.parse(file_path)
 root = file.documentElement
 nodes = root.childNodes
 for node in nodes:
  if node.nodeType in (node.TEXT_NODE, node.COMMENT_NODE):
   continue
  if node_name == node.getAttribute('name'):
   root.removeChild(node)
   file.writexml(open(file_path, 'w', encoding='UTF-8'), encoding='UTF-8')
   print('remove %s, node_name:%s. success!' % (file_path, node_name))
   return