dda-devops-build/file_handlers.py

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from abc import ABC, abstractmethod
import json
import re
class FileHandler(ABC):
@classmethod
def from_file_path(cls, file_path):
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config_file_type = file_path.suffix
match config_file_type:
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case '.json':
file_handler = JsonFileHandler()
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case '.gradle':
file_handler = GradleFileHandler()
case _:
raise Exception(f'The file type "{config_file_type}" is not implemented')
file_handler.config_file_path = file_path
file_handler.config_file_type = config_file_type
return file_handler
@abstractmethod
def parse(self) -> tuple[list[int], bool]:
pass
@abstractmethod
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def write(self, version_string):
pass
class JsonFileHandler(FileHandler):
def parse(self) -> tuple[list[int], bool]:
with open(self.config_file_path, 'r') as json_file:
json_version = json.load(json_file)['version']
is_snapshot = False
if '-SNAPSHOT' in json_version:
is_snapshot = True
json_version = json_version.replace('-SNAPSHOT', '')
version = [int(x) for x in json_version.split('.')]
return version, is_snapshot
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def write(self, version_string):
with open(self.config_file_path, 'r+') as json_file:
json_data = json.load(json_file)
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json_data['version'] = version_string
json_file.seek(0)
json.dump(json_data, json_file, indent=4)
json_file.truncate()
class GradleFileHandler(FileHandler):
def parse(self) -> tuple[list[int], bool]:
with open(self.config_file_path, 'r') as gradle_file:
contents = gradle_file.read()
version_line = re.search("\nversion = .*\n", contents)
if version_line is None:
raise Exception("Version not found in gradle file")
version_line = version_line.group()
version_string = re.search('[0-9]*\\.[0-9]*\\.[0-9]*(-SNAPSHOT)?', version_line)
if version_string is None:
raise Exception("Version not found in gradle file")
version_string = version_string.group()
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is_snapshot = False
if '-SNAPSHOT' in version_string:
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is_snapshot = True
version_string = version_string.replace('-SNAPSHOT', '')
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version = [int(x) for x in version_string.split('.')]
return version, is_snapshot
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def write(self, version_string):
with open(self.config_file_path, 'r+') as gradle_file:
gradle_contents = gradle_file.read()
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version_substitute = re.sub("\nversion = .*\n", f'\nversion = "{version_string}"\n', gradle_contents)
gradle_file.seek(0)
gradle_file.write(version_substitute)
gradle_file.truncate()