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@ -1 +1 @@
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||||
3.10.5
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||||
3.12.4
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379
BackupRotator.py
379
BackupRotator.py
@ -1,379 +0,0 @@
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#!/usr/bin/env python3
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"""
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Mike's Backup Rotator
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A simple script to help automatically rotate backup files
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Copyright 2022 Mike Peralta; All rights reserved
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Released under the GNU GENERAL PUBLIC LICENSE v3 (See LICENSE file for more)
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"""
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import datetime
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import os
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# import pprint
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import shutil
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import sys
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import syslog
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import time
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import yaml
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class BackupRotator:
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def __init__(self):
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self.__dry_run = False
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self.__configs = []
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self.__config_paths = []
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self.__calculated_actions = []
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def run(self, configs, dry_run: bool = False):
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self.log("Begin")
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self.__dry_run = dry_run
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self.__config_paths = configs
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self._consume_configs(self.__config_paths)
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# Rotate once per config
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for config_index in range(len(self.__configs)):
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#
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config = self.__configs[config_index]
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#
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self.log("Rotating for config " + str(config_index + 1) + " of " + str(len(self.__configs)), config["__path"])
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self._do_rotate(config)
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@staticmethod
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def current_time():
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now = datetime.datetime.now()
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now_s = now.strftime("%b-%d-%Y %I:%M%p")
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return str(now_s)
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def log(self, s, o=None):
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now = self.current_time()
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to_log = "[" + now + "][Backup Rotator] " + str(s)
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if o is not None:
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to_log += " " + str(o)
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syslog.syslog(to_log)
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print(to_log)
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def _consume_configs(self, paths: list=None):
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assert paths is not None, "Config paths cannot be None"
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assert len(paths) > 0, "Must provide at least one config file path"
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# Use each config path
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for path in paths:
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# If this is a single path
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if os.path.isfile(path):
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self._consume_config(path)
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# If this is a directory
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elif os.path.isdir(path):
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# Iterate over each file inside
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for file_name in os.listdir(path):
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self._consume_config(os.path.join(path, file_name))
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def _consume_config(self, path: str):
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# Open the file
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f = open(path)
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if not f:
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raise Exception("Unable to open config file: " + path)
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# Parse
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config = yaml.safe_load(f)
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# Add its own path
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config["__path"] = path
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# Consume to internal
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self.__configs.append(config)
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self.log("Consumed config from path:", path)
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def _do_rotate(self, config):
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self._rotate_paths(config)
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def _rotate_paths(self, config):
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self.log("Begin rotating " + str(len(config["paths"])) + " paths")
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for path in config["paths"]:
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self._rotate_path(config, path)
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def _rotate_path(self, config, path):
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assert os.path.isdir(path), "Path should be a directory: {}".format(path)
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self.log("Rotating path: {}".format(path))
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found_any_rotation_keys = False
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if "maximum-items" in config.keys():
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found_any_rotation_keys = True
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self._rotate_path_for_maximum_items(config=config, path=path, max_items=config["maximum-items"])
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if "maximum-age" in config.keys():
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found_any_rotation_keys = True
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self._rotate_path_for_maximum_age(config=config, path=path, max_age_days=config["maximum-age"])
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assert found_any_rotation_keys is True, \
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"Config needs one of the following keys: \"maximum-items\""
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def _rotate_path_for_maximum_items(self, config, path: str, max_items: int):
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assert os.path.isdir(path), "Path should be a directory: {}".format(path)
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||||
self.log("Rotating path for a maximum of {} items: {}".format(
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max_items, path
|
||||
))
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||||
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children = self._gather_rotation_candidates(config, path)
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||||
|
||||
minimum_items = self._determine_minimum_items(config)
|
||||
|
||||
# Do we need to rotate anything out?
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if len(children) < minimum_items:
|
||||
self.log("Path only has {} items, which does not meet the minimum threshold of {} items. Won't rotate this path.".format(
|
||||
len(children), minimum_items
|
||||
))
|
||||
elif len(children) <= max_items:
|
||||
self.log("Path only has {} items, but needs more than {} for rotation; Won't rotate this path.".format(
|
||||
len(children), max_items
|
||||
))
|
||||
return
|
||||
self.log("Found {} items to examine".format(len(children)))
|
||||
|
||||
#
|
||||
maximum_purge_count = len(children) - minimum_items
|
||||
purge_count = len(children) - max_items
|
||||
self.log("Want to purge {} items".format(purge_count))
|
||||
|
||||
if purge_count > maximum_purge_count:
|
||||
self.log("Reducing purge count from {} to {} items to respect minimum items setting ({})".format(
|
||||
purge_count, maximum_purge_count, minimum_items
|
||||
))
|
||||
purge_count = maximum_purge_count
|
||||
|
||||
children_to_purge = []
|
||||
for purge_index in range(purge_count):
|
||||
|
||||
#
|
||||
item_to_purge, item_ctime, item_age_seconds, item_age = self._pick_oldest_item(config, children)
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||||
children.remove(item_to_purge)
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self.log("Found next item to purge: ({}) {} ({})".format(
|
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purge_index + 1,
|
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os.path.basename(item_to_purge),
|
||||
item_age
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))
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|
||||
#
|
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children_to_purge.append(item_to_purge)
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||||
|
||||
#
|
||||
self.log("Removing items")
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||||
for child_to_purge in children_to_purge:
|
||||
child_basename = os.path.basename(child_to_purge)
|
||||
self._remove_item(config, child_to_purge)
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||||
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||||
def _rotate_path_for_maximum_age(self, config, path: str, max_age_days: int):
|
||||
|
||||
assert os.path.isdir(path), "Path should be a directory: {}".format(path)
|
||||
|
||||
self.log("Rotating path for max age of {} days: {}".format(max_age_days, path))
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||||
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||||
children = self._gather_rotation_candidates(config, path)
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||||
|
||||
self.log("Examining {} items for deletion".format(len(children)))
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||||
children_to_delete = []
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||||
for child in children:
|
||||
|
||||
age_seconds = self._detect_item_age_seconds(config, child)
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||||
age_days = self._detect_item_age_days(config, child)
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||||
age_formatted = self.seconds_to_time_string(age_seconds)
|
||||
child_basename = os.path.basename(child)
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||||
|
||||
if age_days > max_age_days:
|
||||
self.log("[Old enough ] {} ({})".format(
|
||||
child_basename, age_formatted
|
||||
))
|
||||
children_to_delete.append(child)
|
||||
else:
|
||||
self.log("[Not Old enough] {} ({})".format(
|
||||
child_basename, age_formatted
|
||||
))
|
||||
|
||||
if len(children_to_delete) > 0:
|
||||
self.log("Removing old items ...")
|
||||
for child_to_delete in children_to_delete:
|
||||
basename = os.path.basename(child_to_delete)
|
||||
self._remove_item(config, child_to_delete)
|
||||
else:
|
||||
self.log("No old items to remove")
|
||||
|
||||
|
||||
@staticmethod
|
||||
def _gather_rotation_candidates(config, path):
|
||||
|
||||
candidates = []
|
||||
|
||||
if "target-type" not in config.keys():
|
||||
raise Exception("Please provide the configuration key: target-type")
|
||||
|
||||
for item_name in os.listdir(path):
|
||||
|
||||
item_path = os.path.join(path, item_name)
|
||||
|
||||
if config["target-type"] == "file":
|
||||
if not os.path.isfile(item_path):
|
||||
continue
|
||||
elif config["target-type"] == "directory":
|
||||
if not os.path.isdir(item_path):
|
||||
continue
|
||||
else:
|
||||
raise Exception("Configuration key \"target-type\" must be \"file\" or \"directory\"")
|
||||
|
||||
candidates.append(item_path)
|
||||
|
||||
return candidates
|
||||
|
||||
def _pick_oldest_item(self, config, items):
|
||||
|
||||
best_item = None
|
||||
best_ctime = None
|
||||
for item in items:
|
||||
|
||||
ctime = self._detect_item_date(config, item)
|
||||
if best_ctime is None or ctime < best_ctime:
|
||||
best_ctime = ctime
|
||||
best_item = item
|
||||
|
||||
age_seconds = self._detect_item_age_seconds(config, best_item)
|
||||
age_string = self.seconds_to_time_string(age_seconds)
|
||||
|
||||
return best_item, best_ctime, age_seconds, age_string
|
||||
|
||||
@staticmethod
|
||||
def _detect_item_date(config, item):
|
||||
|
||||
assert "date-detection" in config.keys(), "Please provide config key: \"date-detection\""
|
||||
detection = config["date-detection"]
|
||||
|
||||
if detection == "file":
|
||||
ctime = os.path.getctime(item)
|
||||
else:
|
||||
raise AssertionError("Invalid value for \"date-detection\"; Should be one of {file}: {}".format(
|
||||
detection
|
||||
))
|
||||
|
||||
return ctime
|
||||
|
||||
def _detect_item_age_seconds(self, config, item):
|
||||
|
||||
now = time.time()
|
||||
ctime = self._detect_item_date(config, item)
|
||||
delta = now - ctime
|
||||
|
||||
return delta
|
||||
|
||||
def _detect_item_age_days(self, config, item):
|
||||
|
||||
age_seconds = self._detect_item_age_seconds(config, item)
|
||||
age_days = int(age_seconds / 86400)
|
||||
|
||||
return age_days
|
||||
|
||||
def seconds_to_time_string(self, seconds: float):
|
||||
|
||||
if isinstance(seconds, float):
|
||||
pass
|
||||
elif isinstance(seconds, int):
|
||||
seconds = float * 1.0
|
||||
else:
|
||||
raise AssertionError("Seconds must be an int or float")
|
||||
|
||||
# Map
|
||||
map = {
|
||||
"year": 31536000.0,
|
||||
"month": 2592000.0,
|
||||
"week": 604800.0,
|
||||
"day": 86400.0,
|
||||
"hour": 3600.0,
|
||||
"minute": 60.0,
|
||||
"second": 1.0
|
||||
}
|
||||
|
||||
s_parts = []
|
||||
for unit_label in map.keys():
|
||||
unit_seconds = map[unit_label]
|
||||
if seconds >= unit_seconds:
|
||||
unit_count = int(seconds / unit_seconds)
|
||||
s_parts.append("{} {}{}".format(
|
||||
unit_count, unit_label,
|
||||
"" if unit_count == 1 else "s"
|
||||
))
|
||||
seconds -= unit_seconds * unit_count
|
||||
|
||||
s = ", ".join(s_parts)
|
||||
|
||||
return s
|
||||
|
||||
def _remove_item(self, config, path):
|
||||
|
||||
if os.path.isfile(path):
|
||||
self._remove_file(config, path)
|
||||
elif os.path.isdir(path):
|
||||
self._remove_directory(config, path)
|
||||
else:
|
||||
raise AssertionError("Don't know how to remove this item: {}".format(path))
|
||||
|
||||
def _remove_file(self, config, file_path):
|
||||
|
||||
if not os.path.isfile(file_path):
|
||||
raise Exception("Tried to remove a file, but this path isn't a file: " + str(file_path))
|
||||
|
||||
if self.__dry_run:
|
||||
self.log("Won't purge file during global-level dry run: ", file_path)
|
||||
elif "dry-run" in config.keys() and config["dry-run"] is True:
|
||||
self.log("Won't purge file during config-level dry run: ", file_path)
|
||||
else:
|
||||
self.log("Purging file:", file_path)
|
||||
os.remove(file_path)
|
||||
|
||||
def _remove_directory(self, config, dir_path):
|
||||
|
||||
if not os.path.isdir(dir_path):
|
||||
raise Exception("Tried to remove a directory, but this path isn't a directory: " + str(dir_path))
|
||||
|
||||
if self.__dry_run:
|
||||
self.log("Won't purge directory during global-level dry run: ", dir_path)
|
||||
elif "dry-run" in config.keys() and config["dry-run"] is True:
|
||||
self.log("Won't purge directory during config-level dry run: ", dir_path)
|
||||
else:
|
||||
self.log("Purging directory:", dir_path)
|
||||
shutil.rmtree(dir_path)
|
||||
|
||||
|
||||
def _determine_minimum_items(self, config):
|
||||
|
||||
minimum_items = 0
|
||||
|
||||
if "minimum-items" in config.keys():
|
||||
minimum_items = config["minimum-items"]
|
||||
self.log("Won't delete anything unless a minimum of {} items were found".format(minimum_items))
|
||||
else:
|
||||
self.log("No value found for \"minimum-items\"; Will not enforce minimum item constraint.")
|
||||
|
||||
return minimum_items
|
||||
5
Pipfile
5
Pipfile
@ -4,11 +4,12 @@ verify_ssl = true
|
||||
name = "pypi"
|
||||
|
||||
[packages]
|
||||
pyyaml = ">=5.4"
|
||||
#pyyaml = ">=5.4"
|
||||
pyyaml = "*"
|
||||
|
||||
[dev-packages]
|
||||
|
||||
[requires]
|
||||
python_version = "3.10.5"
|
||||
python_version = "3.12"
|
||||
|
||||
|
||||
|
||||
91
Pipfile.lock
generated
91
Pipfile.lock
generated
@ -1,11 +1,11 @@
|
||||
{
|
||||
"_meta": {
|
||||
"hash": {
|
||||
"sha256": "cceb18d3baeb19edef3ba31b743720003102c4c3d9cddd6b595c664692a37384"
|
||||
"sha256": "32165f2eba4fd1d8db46f280f7cc3f2c9a5ed5ed87eb9ecc34f26b08ffdee5ac"
|
||||
},
|
||||
"pipfile-spec": 6,
|
||||
"requires": {
|
||||
"python_version": "3.10.5"
|
||||
"python_version": "3.12"
|
||||
},
|
||||
"sources": [
|
||||
{
|
||||
@ -18,42 +18,61 @@
|
||||
"default": {
|
||||
"pyyaml": {
|
||||
"hashes": [
|
||||
"sha256:0283c35a6a9fbf047493e3a0ce8d79ef5030852c51e9d911a27badfde0605293",
|
||||
"sha256:055d937d65826939cb044fc8c9b08889e8c743fdc6a32b33e2390f66013e449b",
|
||||
"sha256:07751360502caac1c067a8132d150cf3d61339af5691fe9e87803040dbc5db57",
|
||||
"sha256:0b4624f379dab24d3725ffde76559cff63d9ec94e1736b556dacdfebe5ab6d4b",
|
||||
"sha256:0ce82d761c532fe4ec3f87fc45688bdd3a4c1dc5e0b4a19814b9009a29baefd4",
|
||||
"sha256:1e4747bc279b4f613a09eb64bba2ba602d8a6664c6ce6396a4d0cd413a50ce07",
|
||||
"sha256:213c60cd50106436cc818accf5baa1aba61c0189ff610f64f4a3e8c6726218ba",
|
||||
"sha256:231710d57adfd809ef5d34183b8ed1eeae3f76459c18fb4a0b373ad56bedcdd9",
|
||||
"sha256:277a0ef2981ca40581a47093e9e2d13b3f1fbbeffae064c1d21bfceba2030287",
|
||||
"sha256:2cd5df3de48857ed0544b34e2d40e9fac445930039f3cfe4bcc592a1f836d513",
|
||||
"sha256:40527857252b61eacd1d9af500c3337ba8deb8fc298940291486c465c8b46ec0",
|
||||
"sha256:473f9edb243cb1935ab5a084eb238d842fb8f404ed2193a915d1784b5a6b5fc0",
|
||||
"sha256:48c346915c114f5fdb3ead70312bd042a953a8ce5c7106d5bfb1a5254e47da92",
|
||||
"sha256:50602afada6d6cbfad699b0c7bb50d5ccffa7e46a3d738092afddc1f9758427f",
|
||||
"sha256:68fb519c14306fec9720a2a5b45bc9f0c8d1b9c72adf45c37baedfcd949c35a2",
|
||||
"sha256:77f396e6ef4c73fdc33a9157446466f1cff553d979bd00ecb64385760c6babdc",
|
||||
"sha256:819b3830a1543db06c4d4b865e70ded25be52a2e0631ccd2f6a47a2822f2fd7c",
|
||||
"sha256:897b80890765f037df3403d22bab41627ca8811ae55e9a722fd0392850ec4d86",
|
||||
"sha256:98c4d36e99714e55cfbaaee6dd5badbc9a1ec339ebfc3b1f52e293aee6bb71a4",
|
||||
"sha256:9df7ed3b3d2e0ecfe09e14741b857df43adb5a3ddadc919a2d94fbdf78fea53c",
|
||||
"sha256:9fa600030013c4de8165339db93d182b9431076eb98eb40ee068700c9c813e34",
|
||||
"sha256:a80a78046a72361de73f8f395f1f1e49f956c6be882eed58505a15f3e430962b",
|
||||
"sha256:b3d267842bf12586ba6c734f89d1f5b871df0273157918b0ccefa29deb05c21c",
|
||||
"sha256:b5b9eccad747aabaaffbc6064800670f0c297e52c12754eb1d976c57e4f74dcb",
|
||||
"sha256:c5687b8d43cf58545ade1fe3e055f70eac7a5a1a0bf42824308d868289a95737",
|
||||
"sha256:cba8c411ef271aa037d7357a2bc8f9ee8b58b9965831d9e51baf703280dc73d3",
|
||||
"sha256:d15a181d1ecd0d4270dc32edb46f7cb7733c7c508857278d3d378d14d606db2d",
|
||||
"sha256:d4db7c7aef085872ef65a8fd7d6d09a14ae91f691dec3e87ee5ee0539d516f53",
|
||||
"sha256:d4eccecf9adf6fbcc6861a38015c2a64f38b9d94838ac1810a9023a0609e1b78",
|
||||
"sha256:d67d839ede4ed1b28a4e8909735fc992a923cdb84e618544973d7dfc71540803",
|
||||
"sha256:daf496c58a8c52083df09b80c860005194014c3698698d1a57cbcfa182142a3a",
|
||||
"sha256:e61ceaab6f49fb8bdfaa0f92c4b57bcfbea54c09277b1b4f7ac376bfb7a7c174",
|
||||
"sha256:f84fbc98b019fef2ee9a1cb3ce93e3187a6df0b2538a651bfb890254ba9f90b5"
|
||||
"sha256:04ac92ad1925b2cff1db0cfebffb6ffc43457495c9b3c39d3fcae417d7125dc5",
|
||||
"sha256:062582fca9fabdd2c8b54a3ef1c978d786e0f6b3a1510e0ac93ef59e0ddae2bc",
|
||||
"sha256:0d3304d8c0adc42be59c5f8a4d9e3d7379e6955ad754aa9d6ab7a398b59dd1df",
|
||||
"sha256:1635fd110e8d85d55237ab316b5b011de701ea0f29d07611174a1b42f1444741",
|
||||
"sha256:184c5108a2aca3c5b3d3bf9395d50893a7ab82a38004c8f61c258d4428e80206",
|
||||
"sha256:18aeb1bf9a78867dc38b259769503436b7c72f7a1f1f4c93ff9a17de54319b27",
|
||||
"sha256:1d4c7e777c441b20e32f52bd377e0c409713e8bb1386e1099c2415f26e479595",
|
||||
"sha256:1e2722cc9fbb45d9b87631ac70924c11d3a401b2d7f410cc0e3bbf249f2dca62",
|
||||
"sha256:1fe35611261b29bd1de0070f0b2f47cb6ff71fa6595c077e42bd0c419fa27b98",
|
||||
"sha256:28c119d996beec18c05208a8bd78cbe4007878c6dd15091efb73a30e90539696",
|
||||
"sha256:326c013efe8048858a6d312ddd31d56e468118ad4cdeda36c719bf5bb6192290",
|
||||
"sha256:40df9b996c2b73138957fe23a16a4f0ba614f4c0efce1e9406a184b6d07fa3a9",
|
||||
"sha256:42f8152b8dbc4fe7d96729ec2b99c7097d656dc1213a3229ca5383f973a5ed6d",
|
||||
"sha256:49a183be227561de579b4a36efbb21b3eab9651dd81b1858589f796549873dd6",
|
||||
"sha256:4fb147e7a67ef577a588a0e2c17b6db51dda102c71de36f8549b6816a96e1867",
|
||||
"sha256:50550eb667afee136e9a77d6dc71ae76a44df8b3e51e41b77f6de2932bfe0f47",
|
||||
"sha256:510c9deebc5c0225e8c96813043e62b680ba2f9c50a08d3724c7f28a747d1486",
|
||||
"sha256:5773183b6446b2c99bb77e77595dd486303b4faab2b086e7b17bc6bef28865f6",
|
||||
"sha256:596106435fa6ad000c2991a98fa58eeb8656ef2325d7e158344fb33864ed87e3",
|
||||
"sha256:6965a7bc3cf88e5a1c3bd2e0b5c22f8d677dc88a455344035f03399034eb3007",
|
||||
"sha256:69b023b2b4daa7548bcfbd4aa3da05b3a74b772db9e23b982788168117739938",
|
||||
"sha256:6c22bec3fbe2524cde73d7ada88f6566758a8f7227bfbf93a408a9d86bcc12a0",
|
||||
"sha256:704219a11b772aea0d8ecd7058d0082713c3562b4e271b849ad7dc4a5c90c13c",
|
||||
"sha256:7e07cbde391ba96ab58e532ff4803f79c4129397514e1413a7dc761ccd755735",
|
||||
"sha256:81e0b275a9ecc9c0c0c07b4b90ba548307583c125f54d5b6946cfee6360c733d",
|
||||
"sha256:855fb52b0dc35af121542a76b9a84f8d1cd886ea97c84703eaa6d88e37a2ad28",
|
||||
"sha256:8d4e9c88387b0f5c7d5f281e55304de64cf7f9c0021a3525bd3b1c542da3b0e4",
|
||||
"sha256:9046c58c4395dff28dd494285c82ba00b546adfc7ef001486fbf0324bc174fba",
|
||||
"sha256:9eb6caa9a297fc2c2fb8862bc5370d0303ddba53ba97e71f08023b6cd73d16a8",
|
||||
"sha256:a08c6f0fe150303c1c6b71ebcd7213c2858041a7e01975da3a99aed1e7a378ef",
|
||||
"sha256:a0cd17c15d3bb3fa06978b4e8958dcdc6e0174ccea823003a106c7d4d7899ac5",
|
||||
"sha256:afd7e57eddb1a54f0f1a974bc4391af8bcce0b444685d936840f125cf046d5bd",
|
||||
"sha256:b1275ad35a5d18c62a7220633c913e1b42d44b46ee12554e5fd39c70a243d6a3",
|
||||
"sha256:b786eecbdf8499b9ca1d697215862083bd6d2a99965554781d0d8d1ad31e13a0",
|
||||
"sha256:ba336e390cd8e4d1739f42dfe9bb83a3cc2e80f567d8805e11b46f4a943f5515",
|
||||
"sha256:baa90d3f661d43131ca170712d903e6295d1f7a0f595074f151c0aed377c9b9c",
|
||||
"sha256:bc1bf2925a1ecd43da378f4db9e4f799775d6367bdb94671027b73b393a7c42c",
|
||||
"sha256:bd4af7373a854424dabd882decdc5579653d7868b8fb26dc7d0e99f823aa5924",
|
||||
"sha256:bf07ee2fef7014951eeb99f56f39c9bb4af143d8aa3c21b1677805985307da34",
|
||||
"sha256:bfdf460b1736c775f2ba9f6a92bca30bc2095067b8a9d77876d1fad6cc3b4a43",
|
||||
"sha256:c8098ddcc2a85b61647b2590f825f3db38891662cfc2fc776415143f599bb859",
|
||||
"sha256:d2b04aac4d386b172d5b9692e2d2da8de7bfb6c387fa4f801fbf6fb2e6ba4673",
|
||||
"sha256:d483d2cdf104e7c9fa60c544d92981f12ad66a457afae824d146093b8c294c54",
|
||||
"sha256:d858aa552c999bc8a8d57426ed01e40bef403cd8ccdd0fc5f6f04a00414cac2a",
|
||||
"sha256:e7d73685e87afe9f3b36c799222440d6cf362062f78be1013661b00c5c6f678b",
|
||||
"sha256:f003ed9ad21d6a4713f0a9b5a7a0a79e08dd0f221aff4525a2be4c346ee60aab",
|
||||
"sha256:f22ac1c3cac4dbc50079e965eba2c1058622631e526bd9afd45fedd49ba781fa",
|
||||
"sha256:faca3bdcf85b2fc05d06ff3fbc1f83e1391b3e724afa3feba7d13eeab355484c",
|
||||
"sha256:fca0e3a251908a499833aa292323f32437106001d436eca0e6e7833256674585",
|
||||
"sha256:fd1592b3fdf65fff2ad0004b5e363300ef59ced41c2e6b3a99d4089fa8c5435d",
|
||||
"sha256:fd66fc5d0da6d9815ba2cebeb4205f95818ff4b79c3ebe268e75d961704af52f"
|
||||
],
|
||||
"index": "pypi",
|
||||
"version": "==6.0"
|
||||
"markers": "python_version >= '3.6'",
|
||||
"version": "==6.0.1"
|
||||
}
|
||||
},
|
||||
"develop": {}
|
||||
|
||||
22
README.md
22
README.md
@ -5,6 +5,12 @@ This program functions somewhat similarly to a log rotator. It's purpose is to r
|
||||
|
||||
Suppose you have a third party backup program regularly dropping backup files into some directory. You could use this program to limit the number of files that remain in the directory at any given time.
|
||||
|
||||
# License
|
||||
|
||||
Copyright 2024 Mike Peralta; All rights reserved
|
||||
|
||||
Releasing to the public under the GNU GENERAL PUBLIC LICENSE v3 (See LICENSE file for more)
|
||||
|
||||
# Requirements
|
||||
|
||||
* Python 3
|
||||
@ -78,11 +84,25 @@ Specifies the method used when attempting to determine how old a backup file/dir
|
||||
|
||||
Currently, only *file* is supported
|
||||
|
||||
### minimum-items < INTEGER >
|
||||
|
||||
Specifies the minimum number of backup files/dirs that must be present before rotating can happen. Should be an integer.
|
||||
|
||||
This option doesn't specify how much to rotate on its own, but when rotation is possible. It should probably be used with maximum-age or something other than maximum-items.
|
||||
|
||||
For example, when the *minimum-items* value is set to 5, and *target-type* is *file*, the program will not rotate any files until there are at least 5 in the target directory.
|
||||
|
||||
### maximum-items < INTEGER >
|
||||
|
||||
Specifies the maximum number of backup files/dirs that are allowed in a path before rotating will happen. Should be an integer.
|
||||
|
||||
For example, when the *maximum-items* value is set to 5, and *target-type* is *file*, the program will not rotate any files until there are at least 5 in the target directory.
|
||||
For example, when the *maximum-items* value is set to 500, and *target-type* is *file*, the program will not rotate any files until there are at least 500 in the target directory.
|
||||
|
||||
### maximum-age < INTEGER >
|
||||
|
||||
Specifies the maximum age (in days) of backup files/dirs that are allowed in a path before rotating will happen. Should be an integer.
|
||||
|
||||
For example, when the *maximum-age* value is set to 30, and *target-type* is *file*, the program will not rotate any files that are newer than 30 days.
|
||||
|
||||
### paths < Array of Paths >
|
||||
|
||||
|
||||
417
domain/BackupRotator.py
Executable file
417
domain/BackupRotator.py
Executable file
@ -0,0 +1,417 @@
|
||||
#!/usr/bin/env python3
|
||||
|
||||
"""
|
||||
|
||||
Mike's Backup Rotator
|
||||
|
||||
A simple script to help automatically rotate backup files
|
||||
|
||||
Copyright 2024 Mike Peralta; All rights reserved
|
||||
|
||||
Releasing to the public under the GNU GENERAL PUBLIC LICENSE v3 (See LICENSE file for more)
|
||||
|
||||
"""
|
||||
|
||||
|
||||
from domain.config.Config import Config
|
||||
from domain.config.ConfigFile import ConfigFile
|
||||
from domain.Logger import Logger
|
||||
from domain.Util import Util
|
||||
|
||||
|
||||
import datetime
|
||||
from pathlib import Path
|
||||
import shutil
|
||||
|
||||
|
||||
class BackupRotator:
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
config_paths: [Path] = None,
|
||||
debug: bool = False,
|
||||
systemd: bool = False,
|
||||
write_to_syslog: bool = False,
|
||||
do_test_logs: bool = True,
|
||||
):
|
||||
self.__do_test_logs = do_test_logs
|
||||
|
||||
self.__logger = Logger(
|
||||
name=type(self).__name__,
|
||||
debug=debug,
|
||||
systemd=systemd,
|
||||
write_to_syslog=write_to_syslog,
|
||||
do_test_logs=do_test_logs,
|
||||
)
|
||||
|
||||
self.__config = Config(
|
||||
logger=self.__logger,
|
||||
config_files_paths=config_paths
|
||||
)
|
||||
|
||||
self.__global_dry_run = True
|
||||
self.__calculated_actions = []
|
||||
|
||||
def run(self, global_dry_run: bool = True):
|
||||
|
||||
self.info("Begin rotating")
|
||||
|
||||
self.__global_dry_run = global_dry_run
|
||||
if self.__global_dry_run:
|
||||
self.info(f"Running as a dry run, globally.")
|
||||
else:
|
||||
self.info(f"Won't run as a global dry run.")
|
||||
|
||||
# Rotate once per config
|
||||
config_file_index = -1
|
||||
for config_file in self.__config.config_files:
|
||||
|
||||
config_file: ConfigFile
|
||||
config_file_index += 1
|
||||
|
||||
self.info(
|
||||
f"Rotating for config {config_file_index + 1} of {len(self.__config.config_files)}"
|
||||
f" : {config_file.path}"
|
||||
f"\n{config_file}"
|
||||
)
|
||||
self._do_rotate(config_file)
|
||||
|
||||
@staticmethod
|
||||
def current_time():
|
||||
|
||||
now = datetime.datetime.now()
|
||||
now_s = now.strftime("%b-%d-%Y %I:%M%p")
|
||||
return str(now_s)
|
||||
|
||||
def debug(self, s):
|
||||
self.__logger.debug(s)
|
||||
|
||||
def info(self, s):
|
||||
self.__logger.info(s)
|
||||
|
||||
def warn(self, s):
|
||||
self.__logger.warning(s)
|
||||
|
||||
def error(self, s):
|
||||
self.__logger.error(s)
|
||||
|
||||
def _do_rotate(self, config: ConfigFile):
|
||||
|
||||
self.info(
|
||||
f"Rotating for config: {config.path}"
|
||||
)
|
||||
if config.dry_run:
|
||||
self.info(
|
||||
f"Config {config.path.name} is set for a dry run (no deleting)."
|
||||
)
|
||||
else:
|
||||
self.info(
|
||||
f"Config {config.path.name} is not set for a dry run (will delete)."
|
||||
)
|
||||
|
||||
self._rotate_paths(config=config)
|
||||
|
||||
def _rotate_paths(self, config: ConfigFile):
|
||||
|
||||
paths = config.rotatable_paths
|
||||
self.info(f"Begin rotating {len(paths)} paths")
|
||||
|
||||
for path in paths:
|
||||
|
||||
path: Path
|
||||
|
||||
self._rotate_path(config=config, path=path)
|
||||
|
||||
def _rotate_path(self, config: ConfigFile, path: Path):
|
||||
|
||||
assert path.is_dir(), (
|
||||
f"Path should be a directory: {path}"
|
||||
)
|
||||
|
||||
self.info(
|
||||
f"Rotating path: {path}"
|
||||
)
|
||||
|
||||
self._rotate_path_for_maximum_items(
|
||||
config=config,
|
||||
path=path,
|
||||
)
|
||||
|
||||
self._rotate_path_for_maximum_age(
|
||||
config=config,
|
||||
path=path,
|
||||
)
|
||||
|
||||
def _rotate_path_for_maximum_items(self, config: ConfigFile, path: Path):
|
||||
|
||||
assert path.is_dir(), f"Path should be a directory: {path}"
|
||||
|
||||
if config.maximum_items:
|
||||
self.info(
|
||||
f"Rotating path for a maximum of {config.maximum_items} items: {path}"
|
||||
)
|
||||
else:
|
||||
self.info(
|
||||
f"Not configured to rotate for maximum number of items."
|
||||
)
|
||||
return
|
||||
|
||||
self.info(
|
||||
f"Will gather rotation candidates for maximum number of items."
|
||||
)
|
||||
|
||||
candidate_items = self._gather_rotation_candidates(config=config, path=path)
|
||||
minimum_items = self._determine_minimum_items(config=config)
|
||||
|
||||
# Do we need to rotate anything out?
|
||||
if len(candidate_items) < minimum_items:
|
||||
|
||||
self.info(
|
||||
f"Path only has {len(candidate_items)} items"
|
||||
f", which does not meet the minimum threshold of {minimum_items} items."
|
||||
" Won't rotate this path."
|
||||
)
|
||||
return
|
||||
|
||||
elif len(candidate_items) <= config.maximum_items:
|
||||
self.info(
|
||||
f"Path only has {len(candidate_items)} items"
|
||||
f", but needs more than {config.maximum_items} for rotation"
|
||||
"; Won't rotate this path."
|
||||
)
|
||||
return
|
||||
|
||||
self.info(f"Found {len(candidate_items)} items to examine")
|
||||
|
||||
#
|
||||
maximum_purge_count = len(candidate_items) - minimum_items
|
||||
purge_count = len(candidate_items) - config.maximum_items
|
||||
self.info(
|
||||
f"Want to purge {purge_count} items to stay under maximum of {config.maximum_items}"
|
||||
)
|
||||
|
||||
if purge_count > maximum_purge_count:
|
||||
self.info(
|
||||
f"Reducing purge count from"
|
||||
f" {purge_count} to {maximum_purge_count} items"
|
||||
f" to respect minimum items setting ({minimum_items})"
|
||||
)
|
||||
purge_count = maximum_purge_count
|
||||
|
||||
items_to_purge = []
|
||||
for purge_index in range(purge_count):
|
||||
|
||||
#
|
||||
item_to_purge, item_ctime, item_age_seconds, item_age = self._pick_oldest_item(
|
||||
config=config, items=candidate_items
|
||||
)
|
||||
item_to_purge: Path
|
||||
|
||||
candidate_items.remove(item_to_purge)
|
||||
|
||||
self.info(
|
||||
f"Will purge: ({purge_index + 1})"
|
||||
f" {item_to_purge.name}"
|
||||
f" ({item_age})"
|
||||
)
|
||||
|
||||
#
|
||||
items_to_purge.append(item_to_purge)
|
||||
|
||||
#
|
||||
self.info("Removing items")
|
||||
for item_to_purge in items_to_purge:
|
||||
|
||||
item_to_purge: Path
|
||||
|
||||
self.debug(f"Purging item: {item_to_purge.name}")
|
||||
|
||||
self._remove_item(config=config, path=item_to_purge)
|
||||
|
||||
def _rotate_path_for_maximum_age(self, config: ConfigFile, path: Path):
|
||||
|
||||
assert path.is_dir(), f"Path should be a directory: {path}"
|
||||
|
||||
if config.maximum_age:
|
||||
self.info(
|
||||
f"Rotating path for max age of {config.maximum_age} days: {path}"
|
||||
)
|
||||
else:
|
||||
self.info(
|
||||
f"Not configured to rotate for a maximum number of days."
|
||||
)
|
||||
return
|
||||
|
||||
self.info(
|
||||
f"Will gather rotation candidates for maximum age, in days."
|
||||
)
|
||||
candidate_items = self._gather_rotation_candidates(config=config, path=path)
|
||||
minimum_items = self._determine_minimum_items(config=config)
|
||||
|
||||
# Do we need to rotate anything out?
|
||||
if len(candidate_items) < minimum_items:
|
||||
self.info(
|
||||
f"Path only has {len(candidate_items)} items"
|
||||
f", which does not meet the minimum threshold of {minimum_items} items."
|
||||
f" Won't rotate this path."
|
||||
)
|
||||
return
|
||||
|
||||
self.info(
|
||||
f"Examining {len(candidate_items)} items for deletion"
|
||||
)
|
||||
items_to_delete = []
|
||||
for item in candidate_items:
|
||||
|
||||
age_seconds = Util.detect_item_age_seconds(config=config, item=item)
|
||||
age_days = Util.detect_item_age_days(config=config, item=item)
|
||||
age_formatted = Util.seconds_to_time_string(age_seconds)
|
||||
|
||||
if age_days > config.maximum_age:
|
||||
self.info(
|
||||
f"[Old enough ] {item.name} ({age_formatted})"
|
||||
)
|
||||
items_to_delete.append(item)
|
||||
else:
|
||||
self.info(
|
||||
f"[Not Old enough] {item.name} ({age_formatted})"
|
||||
)
|
||||
|
||||
if len(items_to_delete) > 0:
|
||||
|
||||
self.info("Removing old items ...")
|
||||
|
||||
for item in items_to_delete:
|
||||
self._remove_item(config, item)
|
||||
|
||||
else:
|
||||
self.info("No old items to remove")
|
||||
|
||||
def _gather_rotation_candidates(self, config: ConfigFile, path: Path) -> [Path]:
|
||||
|
||||
self.debug(f"Begin gathering rotation candidates for: {path}")
|
||||
|
||||
candidates: [Path] = []
|
||||
|
||||
for item in path.iterdir():
|
||||
|
||||
self.debug(f"Found an item: {item.name}")
|
||||
|
||||
if config.target_type == "file":
|
||||
|
||||
if not item.is_file():
|
||||
self.debug(f"Not a file; Skipping: {item.name}")
|
||||
continue
|
||||
|
||||
elif config.target_type == "directory":
|
||||
|
||||
if not item.is_dir():
|
||||
self.debug(f"Not a directory; Skipping: {item.name}")
|
||||
continue
|
||||
|
||||
else:
|
||||
raise Exception(
|
||||
f"Unsupported target type: {config.target_type}"
|
||||
)
|
||||
|
||||
candidates.append(item)
|
||||
|
||||
self.__logger.info(f"Returning {len(candidates)} potential candidates to remove.")
|
||||
|
||||
return candidates
|
||||
|
||||
def _pick_oldest_item(self, config: ConfigFile, items: [Path]) -> (Path, float, float, str):
|
||||
|
||||
best_item = None
|
||||
best_ctime = None
|
||||
for item in items:
|
||||
|
||||
try:
|
||||
ctime = Util.detect_item_creation_date(config, item)
|
||||
except FileNotFoundError as e:
|
||||
self.__logger.error(f"File disappeared while trying to check ctime: {item}")
|
||||
continue
|
||||
|
||||
if best_ctime is None or ctime < best_ctime:
|
||||
best_ctime = ctime
|
||||
best_item = item
|
||||
|
||||
age_seconds = Util.detect_item_age_seconds(config, best_item)
|
||||
age_string = Util.seconds_to_time_string(age_seconds)
|
||||
|
||||
return best_item, best_ctime, age_seconds, age_string
|
||||
|
||||
def _remove_item(self, config: ConfigFile, path: Path):
|
||||
|
||||
if path.is_file():
|
||||
|
||||
self._remove_file(config=config, file_path=path)
|
||||
|
||||
elif path.is_dir():
|
||||
|
||||
self._remove_directory(config=config, dir_path=path)
|
||||
|
||||
else:
|
||||
raise AssertionError(
|
||||
f"Don't know how to remove this item: {path}"
|
||||
)
|
||||
|
||||
def _remove_file(self, config: ConfigFile, file_path: Path):
|
||||
|
||||
if not file_path.is_file():
|
||||
raise Exception(
|
||||
f"Tried to remove a file, but this path isn't a file: {file_path}"
|
||||
)
|
||||
|
||||
if self.__global_dry_run:
|
||||
|
||||
self.info(f"(Global Dry Run) {file_path}")
|
||||
|
||||
elif config.dry_run is True:
|
||||
|
||||
self.info(f"(Config Dry Run) {file_path}")
|
||||
|
||||
else:
|
||||
self.info(f"Purging file: {file_path}")
|
||||
file_path.unlink()
|
||||
|
||||
def _remove_directory(self, config: ConfigFile, dir_path: Path):
|
||||
|
||||
if not dir_path.is_dir():
|
||||
raise Exception(
|
||||
f"Tried to remove a directory"
|
||||
f", but this path isn't a directory: {dir_path}"
|
||||
)
|
||||
|
||||
if self.__global_dry_run:
|
||||
|
||||
self.info(f"(Global Dry Run) {dir_path}")
|
||||
|
||||
elif config.dry_run:
|
||||
|
||||
self.info(f"(Config Dry Run) {dir_path}")
|
||||
|
||||
else:
|
||||
|
||||
self.info(f"Purging directory: {dir_path}")
|
||||
shutil.rmtree(dir_path)
|
||||
|
||||
def _determine_minimum_items(self, config) -> int:
|
||||
|
||||
minimum_items = 0
|
||||
|
||||
if config.minimum_items is not None:
|
||||
|
||||
minimum_items = config.minimum_items
|
||||
|
||||
self.info(
|
||||
f"Won't delete anything unless a minimum of {minimum_items} items were found"
|
||||
)
|
||||
|
||||
else:
|
||||
self.info(
|
||||
"No minimum number of items specified"
|
||||
"; Will not enforce minimum item constraint."
|
||||
)
|
||||
|
||||
return minimum_items
|
||||
97
domain/Logger.py
Normal file
97
domain/Logger.py
Normal file
@ -0,0 +1,97 @@
|
||||
|
||||
import logging
|
||||
from logging.handlers import SysLogHandler
|
||||
|
||||
import sys
|
||||
|
||||
|
||||
class Logger:
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
name: str,
|
||||
debug: bool = False,
|
||||
write_to_syslog: bool = False,
|
||||
systemd: bool = False,
|
||||
do_test_logs: bool = True,
|
||||
):
|
||||
|
||||
self.__name = name
|
||||
self.__debug = debug
|
||||
self.__write_to_syslog = write_to_syslog
|
||||
self.__systemd = systemd
|
||||
self.__do_test_logs = do_test_logs
|
||||
|
||||
self._init_logger()
|
||||
|
||||
def _init_logger(self):
|
||||
|
||||
self.__logger = logging.getLogger(self.__name)
|
||||
|
||||
if self.__debug:
|
||||
level = logging.DEBUG
|
||||
else:
|
||||
level = logging.INFO
|
||||
|
||||
self.__logger.setLevel(level)
|
||||
|
||||
formatter = logging.Formatter(
|
||||
fmt="[{name}][{levelname:<7}] {message}",
|
||||
style='{'
|
||||
)
|
||||
formatter_full = logging.Formatter(
|
||||
fmt="[{asctime}][{name}][{levelname:<7}] {message}",
|
||||
style='{'
|
||||
)
|
||||
|
||||
# Console output / stream handler (STDOUT)
|
||||
handler = logging.StreamHandler(
|
||||
stream=sys.stdout
|
||||
)
|
||||
handler.setLevel(level)
|
||||
handler.addFilter(lambda entry: entry.levelno <= logging.INFO)
|
||||
handler.setFormatter(
|
||||
formatter if self.__systemd else formatter_full
|
||||
)
|
||||
self.__logger.addHandler(handler)
|
||||
|
||||
# Console output / stream handler (STDERR)
|
||||
handler = logging.StreamHandler(
|
||||
stream=sys.stderr
|
||||
)
|
||||
handler.setLevel(logging.WARNING)
|
||||
handler.setFormatter(
|
||||
formatter if self.__systemd else formatter_full
|
||||
)
|
||||
self.__logger.addHandler(handler)
|
||||
|
||||
# Syslog handler
|
||||
if self.__write_to_syslog:
|
||||
handler = SysLogHandler(
|
||||
address="/dev/log"
|
||||
)
|
||||
handler.setLevel(level)
|
||||
handler.setFormatter(formatter)
|
||||
self.__logger.addHandler(handler)
|
||||
|
||||
# This is annoying inside cron
|
||||
if self.__do_test_logs:
|
||||
self.debug("Test debug log")
|
||||
self.info("Test info log")
|
||||
self.warn("Test warn log")
|
||||
self.error("Test error log")
|
||||
|
||||
def debug(self, s):
|
||||
self.__logger.debug(s)
|
||||
|
||||
def info(self, s):
|
||||
self.__logger.info(s)
|
||||
|
||||
def warn(self, s):
|
||||
self.__logger.warning(s)
|
||||
|
||||
def warning(self, s):
|
||||
self.__logger.warning(s)
|
||||
|
||||
def error(self, s):
|
||||
self.__logger.error(s)
|
||||
130
domain/Util.py
Normal file
130
domain/Util.py
Normal file
@ -0,0 +1,130 @@
|
||||
|
||||
|
||||
from domain.config.ConfigFile import ConfigFile
|
||||
|
||||
|
||||
import datetime
|
||||
from pathlib import Path
|
||||
|
||||
|
||||
class Util:
|
||||
|
||||
def __init__(self):
|
||||
pass
|
||||
|
||||
@staticmethod
|
||||
def get_dir_files_recursive(path: Path) -> [Path]:
|
||||
|
||||
files_paths = []
|
||||
for dir_path, dirs_names, filenames in path.walk():
|
||||
|
||||
for file_name in filenames:
|
||||
|
||||
file_path = dir_path / file_name
|
||||
|
||||
files_paths.append(file_path)
|
||||
|
||||
return files_paths
|
||||
|
||||
@staticmethod
|
||||
def detect_item_creation_date(config: ConfigFile, item: Path) -> datetime.datetime:
|
||||
|
||||
stat = None
|
||||
|
||||
if config.date_detection == "file":
|
||||
|
||||
# Try for the most accurate stat
|
||||
# First one that raises will just break the block, obv
|
||||
try:
|
||||
stat = item.stat().st_ctime
|
||||
# print("got ctime")
|
||||
stat = item.stat().st_mtime
|
||||
# print("got mtime")
|
||||
stat = item.stat().st_birthtime
|
||||
# print("got btime")
|
||||
except FileNotFoundError as e:
|
||||
raise e
|
||||
except AttributeError:
|
||||
pass
|
||||
|
||||
else:
|
||||
raise AssertionError(
|
||||
f"Unsupported date-detection option: {config.date_detection}"
|
||||
)
|
||||
|
||||
stamp = datetime.datetime.fromtimestamp(
|
||||
stat
|
||||
)
|
||||
# print("Stat:", stat)
|
||||
# print("Stamp:", stamp)
|
||||
# print(item.name, "==>", stamp)
|
||||
|
||||
return stamp
|
||||
|
||||
@staticmethod
|
||||
def detect_item_age_seconds(config: ConfigFile, item: Path) -> float:
|
||||
|
||||
now = datetime.datetime.now()
|
||||
|
||||
ctime = Util.detect_item_creation_date(config=config, item=item)
|
||||
delta = now - ctime
|
||||
seconds = delta.seconds
|
||||
|
||||
# print(item.name, "==>", seconds, f"({ctime})")
|
||||
# print(">", "Now was:", now)
|
||||
# print(">", "ctime was:", ctime)
|
||||
# print(">", "Delta was:", delta)
|
||||
# print(">", "Seconds was:", delta.total_seconds())
|
||||
|
||||
return delta.total_seconds()
|
||||
|
||||
@staticmethod
|
||||
def detect_item_age_days(config: ConfigFile, item: Path) -> int:
|
||||
|
||||
age_seconds = Util.detect_item_age_seconds(
|
||||
config=config, item=item
|
||||
)
|
||||
age_days = int(age_seconds / 86400)
|
||||
|
||||
return age_days
|
||||
|
||||
@staticmethod
|
||||
def seconds_to_time_string(seconds: float):
|
||||
|
||||
if isinstance(seconds, float):
|
||||
pass
|
||||
elif isinstance(seconds, int):
|
||||
seconds = float(seconds)
|
||||
else:
|
||||
raise AssertionError("Seconds must be an int or float")
|
||||
|
||||
# Map
|
||||
dt_map = {
|
||||
"year": 31536000.0,
|
||||
"month": 2592000.0,
|
||||
"week": 604800.0,
|
||||
"day": 86400.0,
|
||||
"hour": 3600.0,
|
||||
"minute": 60.0,
|
||||
"second": 1.0
|
||||
}
|
||||
|
||||
s_parts = []
|
||||
for unit_label in dt_map.keys():
|
||||
|
||||
unit_seconds = dt_map[unit_label]
|
||||
|
||||
if seconds >= unit_seconds:
|
||||
|
||||
unit_count = int(seconds / unit_seconds)
|
||||
|
||||
unit_plural = "" if unit_count == 1 else "s"
|
||||
s_parts.append(
|
||||
f"{unit_count} {unit_label}{unit_plural}"
|
||||
)
|
||||
|
||||
seconds -= unit_seconds * unit_count
|
||||
|
||||
s = ", ".join(s_parts)
|
||||
|
||||
return s
|
||||
43
domain/config/Config.py
Normal file
43
domain/config/Config.py
Normal file
@ -0,0 +1,43 @@
|
||||
|
||||
|
||||
from domain.config.ConfigFile import ConfigFile
|
||||
from domain.config.Scanner import Scanner
|
||||
from domain.Logger import Logger
|
||||
|
||||
|
||||
from pathlib import Path
|
||||
|
||||
|
||||
class Config:
|
||||
|
||||
def __init__(self, logger: Logger, config_files_paths: [Path]):
|
||||
|
||||
self.__logger = logger
|
||||
|
||||
self.__config_files_paths: [Path] = config_files_paths
|
||||
self.__configs = {}
|
||||
|
||||
self.__scanner = Scanner(
|
||||
logger=self.__logger
|
||||
)
|
||||
|
||||
self._consume_configs()
|
||||
|
||||
def _consume_configs(self):
|
||||
|
||||
config_paths = self.__scanner.gather_valid_config_paths(
|
||||
paths=self.__config_files_paths
|
||||
)
|
||||
|
||||
for config_path in config_paths:
|
||||
|
||||
config = ConfigFile(
|
||||
logger=self.__logger,
|
||||
path=config_path
|
||||
)
|
||||
|
||||
self.__configs[config.key] = config
|
||||
|
||||
@property
|
||||
def config_files(self) -> [ConfigFile]:
|
||||
return self.__configs.values()
|
||||
309
domain/config/ConfigFile.py
Normal file
309
domain/config/ConfigFile.py
Normal file
@ -0,0 +1,309 @@
|
||||
|
||||
|
||||
from domain.Logger import Logger
|
||||
|
||||
|
||||
from pathlib import Path
|
||||
import yaml
|
||||
|
||||
|
||||
class ConfigFile:
|
||||
|
||||
__VALID_TARGET_TYPES = [
|
||||
"file",
|
||||
"directory"
|
||||
]
|
||||
|
||||
__VALID_DATE_DETECTION_TYPES = [
|
||||
"file"
|
||||
]
|
||||
|
||||
__DEFAULT_MINIMUM_ITEMS = 0
|
||||
__DEFAULT_MAXIMUM_ITEMS = None
|
||||
__DEFAULT_MAXIMUM_AGE = None
|
||||
|
||||
def __init__(
|
||||
self, logger: Logger,
|
||||
path: Path,
|
||||
):
|
||||
|
||||
self.__logger = logger
|
||||
self.__path = path.absolute()
|
||||
|
||||
# noinspection PyTypeChecker
|
||||
self.__data: dict = None
|
||||
|
||||
self.__dry_run: bool = True
|
||||
|
||||
# noinspection PyTypeChecker
|
||||
self.__target_type: str = None
|
||||
|
||||
# noinspection PyTypeChecker
|
||||
self.__date_detection: str = None
|
||||
|
||||
self.__rotatable_paths: [Path] = []
|
||||
|
||||
self.__minimum_items = self.__DEFAULT_MINIMUM_ITEMS
|
||||
# noinspection PyTypeChecker
|
||||
self.__maximum_items: int = self.__DEFAULT_MAXIMUM_ITEMS
|
||||
# noinspection PyTypeChecker
|
||||
self.__maximum_age: int = None
|
||||
|
||||
self._load()
|
||||
self._consume()
|
||||
|
||||
def __str__(self):
|
||||
|
||||
s = ""
|
||||
|
||||
s += "*** Config File ***"
|
||||
s += f"\n> Path: {self.__path}"
|
||||
s += f"\n> Dry run: " + ("Yes" if self.__dry_run else "No")
|
||||
s += f"\n> Minimum items: {self.__minimum_items}"
|
||||
s += f"\n> Maximum items: {self.__maximum_items}"
|
||||
s += f"\n> Maximum age (in days): {self.__maximum_age}"
|
||||
s += f"\n> Target type: {self.__target_type}"
|
||||
s += f"\n> Date detection: {self.__date_detection}"
|
||||
s += f"\n> Rotatable paths: "
|
||||
if len(self.__rotatable_paths) > 0:
|
||||
for p in self.__rotatable_paths:
|
||||
s += f"\n>> {p}"
|
||||
else:
|
||||
s += "\n>> [none]"
|
||||
|
||||
return s
|
||||
|
||||
def _load(self):
|
||||
|
||||
self.info(f"Loading config: {self.__path}")
|
||||
|
||||
assert self.__path.is_file(), (
|
||||
f"Cannot load config file because it isn't a file: {self.__path}"
|
||||
)
|
||||
|
||||
# Open the file
|
||||
self.debug(f"Opening config file for load: {self.__path}")
|
||||
f = open(str(self.__path))
|
||||
if not f:
|
||||
raise Exception(f"Unable to open config file: {self.__path}")
|
||||
|
||||
# Load data
|
||||
self.__data = yaml.safe_load(f)
|
||||
assert self.__data is not None, (
|
||||
f"Config file seems to be null or empty: {self.__path}"
|
||||
)
|
||||
|
||||
# Consume to internal
|
||||
self.info(f"Loaded config from path: {self.__path}")
|
||||
|
||||
def _consume(self):
|
||||
|
||||
try:
|
||||
|
||||
assert isinstance(self.__data, dict), (
|
||||
f"Config file should be a dict!"
|
||||
)
|
||||
|
||||
if "options" in self.__data.keys():
|
||||
|
||||
self.info(f"Found options setting")
|
||||
options = self.__data["options"]
|
||||
assert isinstance(options, dict), "Options must be a dict"
|
||||
|
||||
if "dry-run" in options.keys():
|
||||
|
||||
dry_run = self.__data["options"]["dry-run"]
|
||||
self.info(f"Found dry run option: {dry_run}")
|
||||
assert isinstance(dry_run, bool), "dry-run setting must be boolean"
|
||||
self.__dry_run = dry_run
|
||||
else:
|
||||
self.warning(f"No dry-run option found; Will use default: {self.__dry_run}")
|
||||
|
||||
if "minimum-items" in options.keys():
|
||||
|
||||
minimum_items = options["minimum-items"]
|
||||
self.info(f"Found minimum-items option: {minimum_items}")
|
||||
if minimum_items is None:
|
||||
minimum_items = self.__DEFAULT_MINIMUM_ITEMS
|
||||
assert isinstance(minimum_items, int), (
|
||||
f"Option minimum-items must be an integer,"
|
||||
f" but got: {type(minimum_items).__name__} ({minimum_items})"
|
||||
)
|
||||
self.__minimum_items = minimum_items
|
||||
else:
|
||||
self.warning(
|
||||
f"No minimum-items option found; Will use default: {self.__minimum_items}"
|
||||
)
|
||||
|
||||
assert (
|
||||
"maximum-items" in options.keys()
|
||||
or
|
||||
"maximum-age" in options.keys()
|
||||
), (
|
||||
"Options should include either maximum-items or maximum-age"
|
||||
)
|
||||
|
||||
if "maximum-items" in options.keys():
|
||||
|
||||
maximum_items = options["maximum-items"]
|
||||
self.info(f"Found maximum-items option: {maximum_items}")
|
||||
assert maximum_items is None or isinstance(maximum_items, int), (
|
||||
f"Option maximum-items must be integer, but got: {maximum_items}"
|
||||
)
|
||||
assert maximum_items is None or maximum_items > 0, (
|
||||
f"Option maximum-items is zero, which doesn't make sense."
|
||||
)
|
||||
self.__maximum_items = maximum_items
|
||||
else:
|
||||
self.warning(
|
||||
f"No maximum-items option found; Will use default: {self.__maximum_items}"
|
||||
)
|
||||
|
||||
if "maximum-age" in options.keys():
|
||||
|
||||
maximum_age = options["maximum-age"]
|
||||
self.info(f"Found maximum-age option (max age in days): {maximum_age}")
|
||||
assert maximum_age is None or isinstance(maximum_age, int), (
|
||||
f"Option maximum-age must be None or an integer,"
|
||||
f" but got: {type(maximum_age).__name__} ({maximum_age})"
|
||||
)
|
||||
assert maximum_age is None or maximum_age > 0, (
|
||||
f"Option maximum-age is zero, which doesn't make sense."
|
||||
)
|
||||
self.__maximum_age = maximum_age
|
||||
else:
|
||||
self.warning(
|
||||
f"No maximum-age option found; Will use default: {self.__maximum_age}"
|
||||
)
|
||||
|
||||
assert "target-type" in options.keys(), (
|
||||
f"Option target-type is required"
|
||||
)
|
||||
target_type = options["target-type"]
|
||||
self.info(f"Found target-type option: {target_type}")
|
||||
assert isinstance(target_type, str), (
|
||||
f"Option target-type must be str, but got: {target_type}"
|
||||
)
|
||||
assert target_type in self.__VALID_TARGET_TYPES, (
|
||||
f"Option target-type must be one of: {self.__VALID_TARGET_TYPES}"
|
||||
)
|
||||
self.__target_type = target_type
|
||||
|
||||
if "date-detection" in options.keys():
|
||||
date_detection = options["date-detection"]
|
||||
self.info(f"Found date-detection option: {date_detection}")
|
||||
assert isinstance(date_detection, str), (
|
||||
f"Option date-detection must be str, but got: {date_detection}"
|
||||
)
|
||||
assert date_detection in self.__VALID_DATE_DETECTION_TYPES, (
|
||||
f"Option date-detection must be one of: {self.__VALID_DATE_DETECTION_TYPES}"
|
||||
)
|
||||
self.__date_detection = date_detection
|
||||
else:
|
||||
self.error(
|
||||
f"Option date-detection not found; Will use default: {self.__date_detection}"
|
||||
)
|
||||
raise AssertionError(
|
||||
f"Option date-detection is required."
|
||||
)
|
||||
|
||||
else:
|
||||
self.error(f"No options key found!")
|
||||
raise AssertionError(f"No options key found!")
|
||||
|
||||
assert "paths" in self.__data, (
|
||||
f"Could not find 'paths' key"
|
||||
)
|
||||
rotatable_paths = self.__data["paths"]
|
||||
if isinstance(rotatable_paths, str):
|
||||
rotatable_paths = [rotatable_paths]
|
||||
assert isinstance(rotatable_paths, list), (
|
||||
"Rotatable 'paths' key must be a string or list"
|
||||
)
|
||||
for i in range(len(rotatable_paths)):
|
||||
p = rotatable_paths[i]
|
||||
if isinstance(p, Path):
|
||||
continue
|
||||
elif isinstance(p, str):
|
||||
rotatable_paths[i] = Path(p)
|
||||
else:
|
||||
raise AssertionError(
|
||||
f"All rotatable paths must be strings or pathlib::Path objects"
|
||||
)
|
||||
|
||||
self.__rotatable_paths = rotatable_paths
|
||||
self.info(f"Found {len(self.__rotatable_paths)} rotatable paths")
|
||||
|
||||
except KeyError as e:
|
||||
|
||||
self.error(
|
||||
f"Failed to load config due to KeyError"
|
||||
f"\nFile: {self.__path}"
|
||||
f"\nError: {str(e)}"
|
||||
)
|
||||
raise e
|
||||
|
||||
except AssertionError as e:
|
||||
|
||||
self.error(
|
||||
f"Failed to load config due to AssertionError"
|
||||
f"\nFile: {self.__path}"
|
||||
f"\nError: {str(e)}"
|
||||
)
|
||||
raise e
|
||||
|
||||
def debug(self, s):
|
||||
self.__logger.debug(f"({self.__path.name}) {s}")
|
||||
|
||||
def info(self, s):
|
||||
self.__logger.info(f"({self.__path.name}) {s}")
|
||||
|
||||
def warning(self, s):
|
||||
self.__logger.warning(f"({self.__path.name}) {s}")
|
||||
|
||||
def error(self, s):
|
||||
self.__logger.error(f"({self.__path.name}) {s}")
|
||||
|
||||
@property
|
||||
def key(self) -> str:
|
||||
return str(self.__path)
|
||||
|
||||
@property
|
||||
def path(self) -> Path:
|
||||
return self.__path
|
||||
|
||||
@property
|
||||
def data(self) -> dict:
|
||||
return self.__data
|
||||
|
||||
@property
|
||||
def dry_run(self) -> bool:
|
||||
return self.__dry_run
|
||||
|
||||
@dry_run.setter
|
||||
def dry_run(self, b: bool):
|
||||
self.__dry_run = b
|
||||
|
||||
@property
|
||||
def target_type(self) -> str:
|
||||
return self.__target_type
|
||||
|
||||
@property
|
||||
def date_detection(self) -> str:
|
||||
return self.__date_detection
|
||||
|
||||
@property
|
||||
def rotatable_paths(self) -> [Path]:
|
||||
return self.__rotatable_paths
|
||||
|
||||
@property
|
||||
def minimum_items(self) -> int:
|
||||
return self.__minimum_items
|
||||
|
||||
@property
|
||||
def maximum_items(self) -> int:
|
||||
return self.__maximum_items
|
||||
|
||||
@property
|
||||
def maximum_age(self) -> int:
|
||||
return self.__maximum_age
|
||||
120
domain/config/Scanner.py
Normal file
120
domain/config/Scanner.py
Normal file
@ -0,0 +1,120 @@
|
||||
|
||||
|
||||
from domain.Logger import Logger
|
||||
from domain.Util import Util
|
||||
|
||||
|
||||
# import os
|
||||
from pathlib import Path
|
||||
|
||||
|
||||
class Scanner:
|
||||
|
||||
__DEFAULT_VALID_EXTENSIONS = [
|
||||
"yaml",
|
||||
"yml"
|
||||
]
|
||||
|
||||
def __init__(self, logger: Logger):
|
||||
|
||||
self.__logger = logger
|
||||
self.__valid_extensions = self.__DEFAULT_VALID_EXTENSIONS
|
||||
|
||||
def debug(self, s):
|
||||
self.__logger.debug(f"[{type(self).__name__}] {s}")
|
||||
|
||||
def info(self, s):
|
||||
self.__logger.info(f"[{type(self).__name__}] {s}")
|
||||
|
||||
def warn(self, s):
|
||||
self.__logger.warning(f"[{type(self).__name__}] {s}")
|
||||
|
||||
def error(self, s):
|
||||
self.__logger.error(f"[{type(self).__name__}] {s}")
|
||||
|
||||
def gather_valid_config_paths(self, paths: list = None) -> [Path]:
|
||||
|
||||
assert paths is not None, "Config paths cannot be None"
|
||||
assert len(paths) > 0, "Must provide at least one config file path"
|
||||
|
||||
self.info("Gathering valid configs")
|
||||
|
||||
file_paths = []
|
||||
config_paths = []
|
||||
not_config_paths = []
|
||||
|
||||
# First gather all files that are potential configs
|
||||
for path_str in paths:
|
||||
|
||||
path = Path(path_str)
|
||||
|
||||
self.info(f"Inspecting path: {path}")
|
||||
|
||||
if not path.exists():
|
||||
|
||||
self.error(f"Path doesn't exist: {path}")
|
||||
|
||||
if path.is_file():
|
||||
|
||||
self.debug(
|
||||
f"Path is a file; Adding directly to potential config candidates: {path}"
|
||||
)
|
||||
file_paths.append(path)
|
||||
|
||||
elif path.is_dir():
|
||||
|
||||
self.debug(
|
||||
f"Path is a dir;"
|
||||
" Scanning recursively for potential config candidate files: {path}"
|
||||
)
|
||||
|
||||
for file_path in Util.get_dir_files_recursive(path=path):
|
||||
self.info(f"> Candidate file: {file_path}")
|
||||
file_paths.append(file_path)
|
||||
|
||||
else:
|
||||
raise AssertionError(
|
||||
f"Don't know how to handle path that isn't a file or dir: {path}"
|
||||
)
|
||||
|
||||
# Now, filter for files with valid YAML extensions
|
||||
for file_path in file_paths:
|
||||
|
||||
if self.check_file_extension(file_path=file_path, extensions=None):
|
||||
config_paths.append(file_path)
|
||||
else:
|
||||
not_config_paths.append(file_path)
|
||||
|
||||
self.info("Filtered out non-config files:")
|
||||
if len(not_config_paths) > 0:
|
||||
for not_config_path in not_config_paths:
|
||||
self.info(f"> {not_config_path}")
|
||||
else:
|
||||
self.info("> [none]")
|
||||
|
||||
self.info("Kept config-looking files:")
|
||||
if len(config_paths) > 0:
|
||||
for config_path in config_paths:
|
||||
self.info(f"> {config_path}")
|
||||
else:
|
||||
self.info("> [none]")
|
||||
|
||||
return config_paths
|
||||
|
||||
def check_file_extension(self, file_path: Path, extensions: list = None) -> bool:
|
||||
|
||||
if extensions is None:
|
||||
extensions = self.__valid_extensions
|
||||
|
||||
file_extension = file_path.suffix
|
||||
|
||||
# Strip preceding dot from extension
|
||||
if len(file_extension) > 0 and file_extension[0] == ".":
|
||||
file_extension = file_extension[1:]
|
||||
file_extension = file_extension.lower()
|
||||
|
||||
for valid_extension in extensions:
|
||||
if file_extension == valid_extension:
|
||||
return True
|
||||
|
||||
return False
|
||||
47
init-environment
Executable file
47
init-environment
Executable file
@ -0,0 +1,47 @@
|
||||
#!/bin/bash
|
||||
|
||||
log()
|
||||
{
|
||||
echo "[Mike's Backup Rotator - Init Env] $1"
|
||||
}
|
||||
complain()
|
||||
{
|
||||
echo "[Mike's Backup Rotator - Init Env] $1" 1>&2
|
||||
}
|
||||
die()
|
||||
{
|
||||
complain "Fatal: $1"
|
||||
exit 1
|
||||
}
|
||||
|
||||
SCRIPT_PATH=$(readlink -f "$0")
|
||||
SCRIPT_DIR=$(dirname "$SCRIPT_PATH")
|
||||
SCRIPT_NAME=$(basename "$SCRIPT_PATH")
|
||||
|
||||
log "Begin ${SCRIPT_NAME}"
|
||||
log "Script path: ${SCRIPT_PATH}"
|
||||
log "Script dir: ${SCRIPT_DIR}"
|
||||
log "PATH: ${PATH}"
|
||||
|
||||
log "PWD before switching: $(pwd)"
|
||||
cd "${SCRIPT_DIR}" || die "Failed to switch to project directory: ${SCRIPT_DIR}"
|
||||
log "PWD after switching: $(pwd)"
|
||||
|
||||
log "Printing environment:"
|
||||
printenv
|
||||
|
||||
log "Ensuring python installation with pyenv"
|
||||
pyenv versions
|
||||
pyenv install --skip-existing || die "Failed to ensure python installation with pyenv"
|
||||
|
||||
log "Installing/upgrading pip and pipenv"
|
||||
pip install --upgrade pip pipenv || die "Failed to install/upgrade pip and pipenv"
|
||||
|
||||
log "Removing old pip environment"
|
||||
pipenv --rm # Don't die because this will return an error if the env didn't already exist
|
||||
|
||||
# Install/sync
|
||||
log "Syncing pip dependencies"
|
||||
pipenv sync || die "Failed to sync pip environment with pipenv"
|
||||
|
||||
|
||||
74
main.py
74
main.py
@ -1,40 +1,96 @@
|
||||
#!/usr/bin/env python3
|
||||
|
||||
|
||||
from BackupRotator import BackupRotator
|
||||
from domain.BackupRotator import BackupRotator
|
||||
|
||||
|
||||
import argparse
|
||||
|
||||
|
||||
#
|
||||
def main():
|
||||
|
||||
parser = argparse.ArgumentParser(
|
||||
description="Mike's Backup Rotator. Helps automatically remove old backup files or folders."
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
"--debug", "--verbose",
|
||||
dest="debug",
|
||||
default=False,
|
||||
action="store_true",
|
||||
help="Verbose/Debug logging mode"
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
"--systemd",
|
||||
default=False,
|
||||
dest="systemd",
|
||||
action="store_true",
|
||||
help=(
|
||||
"Pass if this program will be spawned inside systemd"
|
||||
" or another system that already adds timestamps to log messages."
|
||||
)
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
"--syslog", "--write-to-syslog",
|
||||
default=False,
|
||||
dest="write_to_syslog",
|
||||
action="store_true",
|
||||
help=(
|
||||
"Pass if you'd like this program to write to syslog."
|
||||
)
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
"--no-test-logs",
|
||||
default=False,
|
||||
dest="do_test_logs",
|
||||
action="store_false",
|
||||
help=(
|
||||
"Pass if you do not want to see test logs for all log levels."
|
||||
)
|
||||
)
|
||||
parser.add_argument(
|
||||
"--test-logs",
|
||||
default=True,
|
||||
dest="do_test_logs",
|
||||
action="store_true",
|
||||
help=(
|
||||
"Pass if you want to see test logs for all log levels."
|
||||
)
|
||||
)
|
||||
|
||||
parser.add_argument(
|
||||
"--config", "-c",
|
||||
dest="config_files",
|
||||
dest="config_paths",
|
||||
default=[],
|
||||
action="append",
|
||||
type=str,
|
||||
help="Specify a configuration file. Can be called multiple times."
|
||||
help="Specify a configuration file or configuration directory. Can be called multiple times."
|
||||
)
|
||||
parser.add_argument(
|
||||
"--dry-run", "-d",
|
||||
dest="dry_run",
|
||||
dest="global_dry_run",
|
||||
default=False,
|
||||
action="store_true",
|
||||
help="Only perform an analysis; Don't delete anything."
|
||||
help=(
|
||||
"Only perform an analysis;"
|
||||
" Don't delete anything no matter what configs say (configs can specify dry run, too)."
|
||||
)
|
||||
)
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
rotator = BackupRotator()
|
||||
rotator = BackupRotator(
|
||||
config_paths=args.config_paths,
|
||||
debug=args.debug,
|
||||
systemd=args.systemd,
|
||||
write_to_syslog=args.write_to_syslog,
|
||||
do_test_logs=args.do_test_logs,
|
||||
)
|
||||
rotator.run(
|
||||
configs=args.config_files,
|
||||
dry_run=args.dry_run
|
||||
global_dry_run=args.global_dry_run
|
||||
)
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user