215 lines
7.3 KiB
Python
215 lines
7.3 KiB
Python
from __future__ import absolute_import
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import io
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import os
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import re
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class GcovLine:
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line_num = None
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cov_num = None
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text = None
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def __init__(self, line):
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line_tokens = line.split(':')
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self.cov_num = line_tokens[0].strip()
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self.line_num = int(line_tokens[1].strip())
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self.text = line_tokens[2]
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def is_title_line(self):
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return self.line_num == 0
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def is_line_without_code(self):
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return self.cov_num == '-'
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def should_ignore_line(self):
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return self.text.lstrip().startswith('static') or self.text.strip() == '}' or re.match(r'.*//\s*LCOV_EXCL_LINE\s*', self.text)
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def line_not_visited(self):
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return self.cov_num == '#####'
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def is_parse_error_line(self):
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return self.cov_num == '====='
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def calc_coverage(self):
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if self.is_title_line():
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return -1;
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if self.is_line_without_code():
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return None
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elif self.line_not_visited():
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if self.should_ignore_line():
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return None
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else:
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return 0
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elif self.is_parse_error_line():
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return 0;
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else:
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return int(self.cov_num)
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class Context:
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CPP_EXTENSIONS = ['.h', '.hpp', '.cpp', '.cc', '.c']
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root = None
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build_root = None
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exclude_list = {}
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exclude_patterns = {}
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src_encoding = None
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def __init__(self, root, build_root, exclude_list, exclude_patterns, encoding):
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self.root = root
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self.build_root = build_root
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self.exclude_list = exclude_list
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self.exclude_patterns = exclude_patterns
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self.src_encoding = encoding
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def abs_root(self):
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return os.path.abspath(self.root)
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def abs_build_root(self):
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os.path.abspath(self.build_root)
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def path_from_root(self, abs_src_path):
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return os.path.relpath(abs_src_path, self.abs_root())
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def to_abs_src_path(self, src_path):
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abs_src_path = src_path
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if not os.path.isabs(src_path):
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abs_src_path = os.path.abspath(
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os.path.join(self.build_root, src_path))
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return abs_src_path
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def is_source_file(self, file_path):
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return os.path.splitext(file_path)[1] in self.CPP_EXTENSIONS
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def is_under_folder(self, abs_path, folder_abs_path):
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relative_to_folder_path = os.path.relpath(abs_path, folder_abs_path)
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if (relative_to_folder_path == '.'):
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# exact same path
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return True
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if len(relative_to_folder_path) > 3 and relative_to_folder_path[:3] != '../':
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return True
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return False
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def is_excluded_by_path(self, rel_file_path):
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abs_excluded_path = os.path.abspath(os.path.join(self.root,rel_file_path))
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for excluded_path in self.exclude_list:
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curr_abs_path = os.path.abspath(os.path.join(self.root,excluded_path))
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if os.path.isdir(curr_abs_path):
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return self.is_under_folder(abs_excluded_path, curr_abs_path)
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if curr_abs_path == abs_excluded_path:
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return True
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return False
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def is_excluded_by_regexp(self, file_path):
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for regexp_exclude_path in self.exclude_patterns:
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if re.match(regexp_exclude_path, file_path):
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return True
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return False;
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def is_excluded_path(self, relative_file_path):
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if self.is_excluded_by_regexp(relative_file_path):
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return True;
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return self.is_excluded_by_path(relative_file_path)
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def is_gcov_file(self, file_path):
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return os.path.splitext(file_path)[1] == '.gcov'
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def path_is_under_root(self, rel_src_path):
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return not (len(rel_src_path) > 3 and rel_src_path[:3] == '../')
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def read_src_file(self, abs_src_path):
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with io.open(abs_src_path, encoding=self.src_encoding) as src_file:
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file_read = src_file.read()
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return file_read
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def is_skip_dir(self, dir_name):
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skip_dirs = set(['.git', '.svn', '.deps'])
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return dir_name in skip_dirs
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def make_no_coverage_report(self, src_file_obj):
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coverage = []
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for line in src_file_obj:
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coverage.append(None)
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return coverage
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def make_empty_src_report(self, rel_src_path, abs_file_path):
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src_report = {}
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src_report['name'] = rel_src_path
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with io.open(abs_file_path, encoding=self.src_encoding) as src_file_obj:
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src_report['coverage'] = self.make_no_coverage_report(src_file_obj)
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src_file_obj.seek(0)
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src_report['source'] = src_file_obj.read()
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return src_report
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def parse_coverage(self, file_obj):
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coverage = []
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for line in file_obj:
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cov_line = GcovLine(line)
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if not cov_line.is_title_line():
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coverage.append(cov_line.calc_coverage())
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return coverage
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def make_src_report(self, file_obj):
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source_file_line = file_obj.readline()
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src_path = source_file_line.split(':')[-1].strip()
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abs_src_path = self.to_abs_src_path(src_path)
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rel_src_path = self.path_from_root(abs_src_path)
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src_report = None;
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if self.path_is_under_root(rel_src_path) and not self.is_excluded_path(rel_src_path):
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src_report = {
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'name': rel_src_path,
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'source': self.read_src_file(abs_src_path),
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'coverage': self.parse_coverage(file_obj)
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}
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return src_report
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def make_source_reports(self):
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source_reports = []
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discovered_files = set()
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for curr_dir, dir_names, file_names in os.walk(self.root):
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if self.is_skip_dir(os.path.basename(curr_dir)):
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dir_names[:] = []
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continue
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rel_dir_path = self.path_from_root(os.path.abspath(curr_dir));
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if self.is_excluded_path(rel_dir_path):
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dir_names[:] = []
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continue
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for file_name in file_names:
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if self.is_gcov_file(file_name):
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abs_file = os.path.abspath(os.path.join(curr_dir, file_name))
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with open(abs_file) as src_file_obj:
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src_report = self.make_src_report(src_file_obj)
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if src_report is not None:
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discovered_files.add(src_report['name'])
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source_reports.append(src_report)
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# Also collects the source file_names that have no coverage reports.
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for curr_dir, dir_names, file_names in os.walk(self.root):
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if self.is_skip_dir(os.path.basename(curr_dir)):
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dir_names[:] = []
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continue
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rel_dir_path = self.path_from_root(os.path.abspath(curr_dir));
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if (self.is_excluded_path(rel_dir_path)):
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dir_names[:] = []
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continue
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for file_name in file_names:
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if not self.is_source_file(file_name):
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continue
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abs_file_path = os.path.abspath(os.path.join(curr_dir, file_name))
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rel_src_path = self.path_from_root(abs_file_path)
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if self.is_excluded_path(rel_src_path):
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continue
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if not rel_src_path in discovered_files:
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src_report = self.make_empty_src_report(rel_src_path, abs_file_path)
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source_reports.append(src_report)
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return source_reports
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