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Automated testing create_backup and restore_backup respects file flags. (#6062)

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* Automated testing create_backup and restore_backup respects file flags.

Example:
If the file that is to be backed-up is readonly, when restored that file will be readonly.
If the file that is to be backed-up is not readonly, when restored that file will be not readonly.

Fixes an issue that would mark physics setreg files to readonly after running AutomatedTesting when restoring from the backup.

* update LyTestTools tests that use create/restore backup to expect copy2 instead of copy

Signed-off-by: amzn-sean <75276488+amzn-sean@users.noreply.github.com>
This commit is contained in:
amzn-sean
2021-12-06 11:23:52 +00:00
committed by GitHub
parent 86b397f2bb
commit 09c9548ba4
3 changed files with 56 additions and 53 deletions
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Tools/LyTestTools/ly_test_tools/environment/file_system.py
+27 -13
View File
@@ -293,61 +293,75 @@ def delete(file_list, del_files, del_dirs):
return True
def create_backup(source, backup_dir):
def create_backup(source, backup_dir, backup_name=None):
"""
Creates a backup of a single source file by creating a copy of it with the same name + '.bak' in backup_dir
e.g.: foo.txt is stored as backup_dir/foo.txt.bak
If backup_name is provided, it will create a copy of the source file named "backup_name + .bak" instead.
:param source: Full path to file to backup
:param backup_dir: Path to the directory to store backup.
:param backup_name: [Optional] Name of the backed up file to use instead or the source name.
"""
if not backup_dir or not os.path.isdir(backup_dir):
logger.error(f'Cannot create backup due to invalid backup directory {backup_dir}')
return
return False
if not os.path.exists(source):
logger.warning(f'Source file {source} does not exist, aborting backup creation.')
return
return False
source_filename = os.path.basename(source)
dest = os.path.join(backup_dir, f'{source_filename}.bak')
dest = None
if backup_name is None:
source_filename = os.path.basename(source)
dest = os.path.join(backup_dir, f'{source_filename}.bak')
else:
dest = os.path.join(backup_dir, f'{backup_name}.bak')
logger.info(f'Saving backup of {source} in {dest}')
if os.path.exists(dest):
logger.warning(f'Backup file already exists at {dest}, it will be overwritten.')
try:
shutil.copy(source, dest)
shutil.copy2(source, dest)
except Exception: # intentionally broad
logger.warning('Could not create backup, exception occurred while copying.', exc_info=True)
return False
return True
def restore_backup(original_file, backup_dir):
def restore_backup(original_file, backup_dir, backup_name=None):
"""
Restores a backup file to its original location. Works with a single file only.
:param original_file: Full path to file to overwrite.
:param backup_dir: Path to the directory storing the backup.
:param backup_name: [Optional] Provide if the backup file name is different from source. eg backup file = myFile_1.txt.bak original file = myfile.txt
"""
if not backup_dir or not os.path.isdir(backup_dir):
logger.error(f'Cannot restore backup due to invalid or nonexistent directory {backup_dir}.')
return
return False
source_filename = os.path.basename(original_file)
backup = os.path.join(backup_dir, f'{source_filename}.bak')
backup = None
if backup_name is None:
source_filename = os.path.basename(original_file)
backup = os.path.join(backup_dir, f'{source_filename}.bak')
else:
backup = os.path.join(backup_dir, f'{backup_name}.bak')
if not os.path.exists(backup):
logger.warning(f'Backup file {backup} does not exist, aborting backup restoration.')
return
return False
logger.info(f'Restoring backup of {original_file} from {backup}')
try:
shutil.copy(backup, original_file)
shutil.copy2(backup, original_file)
except Exception: # intentionally broad
logger.warning('Could not restore backup, exception occurred while copying.', exc_info=True)
return False
return True
def delete_oldest(path_glob, keep_num, del_files=True, del_dirs=False):
""" Delete oldest builds, keeping a specific number """