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codestats.py
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codestats.py
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import enum
import os
import subprocess
import sys
from fnmatch import fnmatch
import logging
from typing import Dict, List
import re
logging.basicConfig(level=logging.INFO)
class MultileCommentToken(enum.Enum):
START = enum.auto()
END = enum.auto()
NONE = enum.auto()
class Language(enum.Enum):
UNKOWN = "unknown"
TYPESCRIPT = "TypeScript"
PYTHON = "Python"
JAVASCRIPT = "JavaScript"
HTML = "HTML"
CSS = "CSS"
CPP = "C++"
C = "C"
CMAKE = "CMake"
JSON = "JSON"
MARKDOWN = "Markdown"
JENKINS = "Jenkins"
DOCKER = "Docker"
BASH = "Bash"
BATCHFILE = "Batchfile"
class FileType(enum.Enum):
UNKNOWN = enum.auto()
CODE = enum.auto()
TEST = enum.auto()
DOC = enum.auto()
class LineType(enum.Enum):
COMMENT = enum.auto()
CODE = enum.auto()
BLANK = enum.auto()
class FolderMetadata:
test_patterns: List[str]
doc_patterns: List[str]
def __init__(self):
self.test_patterns = []
self.doc_patterns = []
self.exclude_patterns = []
class FileReport:
lines: Dict[LineType, int]
language: Language
file_type: FileType
def __init__(self):
self.lines = {}
self.lines[LineType.CODE] = 0
self.lines[LineType.COMMENT] = 0
self.lines[LineType.BLANK] = 0
self.language = Language.UNKOWN
self.file_type = FileType.UNKNOWN
def __repr__(self):
return '<FileReport %s - %s - stats: [code:%d, comment:%d, blank:%d]>' % (
self.language,
self.file_type,
self.lines[LineType.CODE],
self.lines[LineType.COMMENT],
self.lines[LineType.BLANK]
)
class FolderReport:
class LanguageSummary:
test_lines: int
code_lines: int
comment_lines: int
blank_lines: int
def __init__(self):
self.test_lines = 0
self.code_lines = 0
self.comment_lines = 0
self.blank_lines = 0
class Summary:
summaries_per_lang: Dict[Language, "FolderReport.LanguageSummary"]
def __init__(self):
self.summaries_per_lang = {}
def add(self, lang: Language, summary: "FolderReport.LanguageSummary"):
self.summaries_per_lang[lang] = summary
def get(self, lang: Language) -> "FolderReport.LanguageSummary":
if lang not in self.summaries_per_lang:
self.summaries_per_lang[lang] = FolderReport.LanguageSummary()
return self.summaries_per_lang[lang]
def get_languages(self) -> List[Language]:
return list(self.summaries_per_lang.keys())
files: Dict[str, FileReport]
skipped: List[str]
def __init__(self):
self.files = {}
self.skipped = []
def get_summary(self) -> "FolderReport.Summary":
summary = FolderReport.Summary()
for filename in self.files:
file_report = self.files[filename]
lang_summary = summary.get(file_report.language)
lang_summary.blank_lines += file_report.lines[LineType.BLANK]
if file_report.file_type == FileType.TEST:
lang_summary.test_lines += file_report.lines[LineType.CODE]
else:
lang_summary.code_lines += file_report.lines[LineType.CODE]
lang_summary.comment_lines += file_report.lines[LineType.COMMENT]
return summary
def make_printable_row(self, elems: List[str], widths: List[int]):
line = ""
for i in range(len(elems)):
line += (elems[i] + ' ' * (widths[i] - len(elems[i])))
return line
def print_summary(self):
spacing = 4
summary = self.get_summary()
rows = []
title_row = ("Language", "Code", "Test", "Comment", "Blank")
col_widths = []
total_row = ['Total', 0, 0, 0, 0]
for i in range(len(title_row)):
col_widths.append(len(title_row[i]))
for lang in summary.get_languages():
lang_summary = summary.get(lang)
row = [
str(lang.value),
(lang_summary.code_lines),
(lang_summary.test_lines),
(lang_summary.comment_lines),
(lang_summary.blank_lines)
]
for i in range(1, len(row)):
total_row[i] += row[i]
row[i] = str(row[i])
if (len(row) != len(title_row)):
raise Exception("Table size mismatch")
rows.append(row)
for i in range(len(col_widths)):
col_widths[i] = max(len(row[i]), col_widths[i])
for i in range(len(total_row)):
total_row[i] = str(total_row[i])
col_widths[i] = max(len(total_row[i]), col_widths[i])
for i in range(len(col_widths)):
col_widths[i] += spacing
print(self.make_printable_row(title_row, col_widths))
for row in rows:
print(self.make_printable_row(row, col_widths))
print(self.make_printable_row(total_row, col_widths))
def get_language(filename: str, metadata: FolderMetadata) -> Language:
ext = os.path.splitext(filename)[1].strip().lower()
basename = os.path.basename(filename)
if basename == 'CMakeLists.txt':
return Language.CMAKE
if basename == 'Dockerfile':
return Language.DOCKER
if basename == 'Jenkinsfile':
return Language.JENKINS
if ext in ['.ts']:
return Language.TYPESCRIPT
if ext in ['.c', '.h']:
return Language.C
if ext in ['.cpp', '.hpp']:
return Language.CPP
if ext in ['.py', '.pyi']:
return Language.PYTHON
if ext in ['.js', '.cjs']:
return Language.JAVASCRIPT
if ext in ['.html', '.htm']:
return Language.HTML
if ext in ['.md']:
return Language.MARKDOWN
if ext in ['.json']:
return Language.JSON
if ext in ['.sh', '.bash']:
return Language.BASH
if ext in ['.css']:
return Language.CSS
if ext in ['.cmake']:
return Language.CMAKE
if ext in ['.bat']:
return Language.BATCHFILE
raise Exception('Unknown language for file %s' % filename)
def get_line_type(line: str, lang: Language, in_comment: bool = False) -> LineType:
line = line.strip()
if not line:
return LineType.BLANK
if in_comment: # Todo : handle multiline comments
return LineType.COMMENT
if lang in [Language.C, Language.CPP, Language.TYPESCRIPT, Language.JAVASCRIPT, Language.JENKINS]:
comment_regex = re.compile('^\s*(\/\/.+)|(\/\*.*\*\/)\s*$')
if comment_regex.match(line):
return LineType.COMMENT
elif lang in [Language.PYTHON, Language.CMAKE, Language.BASH, Language.DOCKER]:
comment_regex = re.compile('^\s*#.+\s*$')
if comment_regex.match(line):
return LineType.COMMENT
elif lang in [Language.CSS]:
comment_regex = re.compile('^\s*(\/\*.*\*\/)\s*$')
if comment_regex.match(line):
return LineType.COMMENT
elif lang in [Language.HTML]:
comment_regex = re.compile('^\s*<!--.*-->\s*$')
if comment_regex.match(line):
return LineType.COMMENT
return LineType.CODE
def get_file_type(filename: str, lang: Language, metadata: FolderMetadata) -> FileType:
if not os.path.isfile(filename):
raise Exception('%s is not a file' % (filename))
if lang == Language.UNKOWN:
raise Exception('Unknown language')
for pattern in metadata.test_patterns:
if fnmatch(filename, pattern):
return FileType.TEST
for pattern in metadata.doc_patterns:
if fnmatch(filename, pattern):
return FileType.DOC
test_regex = r'^(test_.+)|(.+\.test(\..+)?$)'
if re.match(test_regex, os.path.basename(filename)):
return FileType.TEST
return FileType.CODE
def check_multiline_comment_token(line: str, lang: Language, in_comment: bool) -> MultileCommentToken:
if lang in [Language.C, Language.CPP, Language.CSS, Language.JAVASCRIPT, Language.TYPESCRIPT, Language.JENKINS]:
start = line.rfind('/*')
end = line.rfind('*/')
if end == -1:
if start != -1:
return MultileCommentToken.START
else:
if start == -1:
return MultileCommentToken.END
if start > end:
return MultileCommentToken.START
if lang in [Language.PYTHON]:
token_count = 0 # todo
search = -3
while True:
search = line.find('"""', search + 3)
if search == -1:
break
token_count += 1
if token_count > 0:
if token_count % 2 == 0:
return MultileCommentToken.START if in_comment else MultileCommentToken.END
else:
return MultileCommentToken.END if in_comment else MultileCommentToken.START
return MultileCommentToken.NONE
def read_metadata(folder: str) -> FolderMetadata:
return FolderMetadata() # todo
def scan_folder(folder: str) -> FolderReport:
if not os.path.isdir(folder):
raise Exception('%s is not a folder' % (folder))
metadata = read_metadata(folder)
os.chdir(folder)
cmd_output = subprocess.check_output(['git', 'ls-tree', '--full-tree', '-r', '--name-only', 'HEAD'])
file_list = sorted([file.strip() for file in cmd_output.decode('utf8').split('\n') if file])
report = FolderReport()
for filename in file_list:
try:
report.files[filename] = scan_file(filename, metadata)
except Exception as e:
logging.debug('Skipping %s: %s' % (filename, e))
report.skipped.append(filename)
return report
def scan_file(filename: str, metadata: FolderMetadata) -> FileReport:
if not os.path.isfile(filename):
raise Exception('%s is not a file' % (filename))
for exclude_pattern in metadata.exclude_patterns:
if fnmatch(filename, exclude_pattern):
raise Exception("Excluded")
report = FileReport()
report.language = get_language(filename, metadata)
report.file_type = get_file_type(filename, report.language, metadata)
with open(filename, 'r') as f:
in_comment = False
for line in f.readlines():
multiline_comment_token = check_multiline_comment_token(line, report.language, in_comment)
if multiline_comment_token == MultileCommentToken.START:
in_comment = True
elif multiline_comment_token == MultileCommentToken.END:
in_comment = False
report.lines[get_line_type(line, report.language, in_comment)] += 1
return report
if __name__ == '__main__':
report = scan_folder(sys.argv[1])
report.print_summary()