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#!/usr/bin/python3
import os
def has_match(line):
"""check if file current line matches py3_strs.
Args:
line: Current line to check.
return:
Boolean True or False.
"""
py3_strs = [
"#!/usr/bin/python3", "#!/usr/bin/env python3",
"# lint as: python2, python3", "# lint as: python3"
]
for match in py3_strs:
if match in line:
return True
return False
def need_to_skip(fullname):
"""check if this file or folder that needs to be skipped from skip_strs.
Args:
fullname: Current file or folder name.
return:
Boolean True or False.
"""
skip_strs = ["__init__.py", "autotest_lib", "common.py", "site_tests"]
for match in skip_strs:
if match in fullname:
return True
return False
def list_files_to_txt(upper_dir, file, suffix, nums_line_to_check):
"""List results to .txt file by check all target files.
under the folder and subfolder.
Args:
upper_dir: The folder path need to check. The default.
is the ipper path of this script.
file: output .txt file. The default is Python2MigrationTarget.txt.
suffix: File extensions that need to be checked.
nums_line_to_check: The number of rows to check.
return:
All file names and paths that meet the standard.
"""
exts = suffix.split(" ")
files = os.listdir(upper_dir)
for filename in files:
fullname = os.path.join(upper_dir, filename)
if need_to_skip(fullname):
continue
if os.path.isdir(fullname):
list_files_to_txt(fullname, file, suffix, nums_line_to_check)
else:
for ext in exts:
if filename.endswith(ext):
filename = fullname
with open(filename, "r") as f:
for i in range(nums_line_to_check):
line = str(f.readline().strip()).lower()
if has_match(line):
tail = filename.split("third_party")[-1]
file.write("%s, 3\n" % tail)
else:
tail = filename.split("third_party")[-1]
file.write("%s, 2\n" % tail)
break
def main():
"""This is main function"""
upper_dir = os.path.abspath(
os.path.join(os.path.dirname("__file__"), os.path.pardir))
outfile = "Python2MigrationTarget.txt"
suffix = ".py"
nums_line_to_check = 20
file = open(outfile, "w")
if not file:
print("cannot open the file %s " % outfile)
list_files_to_txt(upper_dir, file, suffix, nums_line_to_check)
file.close()
if __name__ == "__main__":
main()
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