Impl ...

- launch.json: change debug cwd to the project root dir
- Add subcmd "mods"
- Docs
- Tidy up sample and debug config files
- Change core exec
  - 'dnf-list-instaled' -> 'rpm-list-installed' as dnf does not work
    on ro fs
  - Accept the exit code 1 from tar(allow live fs change)
- Add the generic sample config
- Fix 'run' subcmd not accepting empty task-id
- Change module loading: modules are not required to have
  the 'backup_backends' var
- Reduce required Python version by removing the use of match ... case
- Fix 'exec-append' not taking 'env' into account
- Remove use of exceptions from irrelevant packages
- Fix unimpl methods of NullBackupBackend
- Tidy up instantiation of raised exceptions
- Change "include" behaviour
  - Relative config paths are now resolved like #include C preprocessor
- Fix bug where "include" circular ref checked is not done with absolute
  paths of config files
- Add own exception hierachy
- aws-s3: change storage class only when "rot-storage-class" is
  different from "sink-storage-class"

1 files changed, 11 insertions, 6 deletions

diff --git a/src/palhm/mod/aws.py b/src/palhm/mod/aws.py
index fcb16f1..01fb8bc 100644
--- a/src/palhm/mod/aws.py
+++ b/src/palhm/mod/aws.py
@@ -7,6 +7,7 @@ from typing import Callable, Iterable
 import boto3
 import botocore
 from palhm import BackupBackend, Exec, GlobalContext
+from palhm.exceptions import APIFailError
 
 
 class CONST (Enum):
@@ -50,10 +51,13 @@ class S3BackupBackend (BackupBackend):
 					Key = self.cur_backup_key)
 				sleep(1)
 			# Make sure we don't proceed
-			raise FileExistsError(self.cur_backup_uri)
+			raise FileExistsError(
+				"Failed to set up a backup dir. Check the prefix function",
+				self.cur_backup_uri)
 		except botocore.exceptions.ClientError as e:
-			if e.response["Error"]["Code"] != "404": # expected status code
-				raise
+			c = e.response["Error"]["Code"]
+			if c != "404": # expected status code
+				raise APIFailError("Unexpected status code", c)
 
 		return super().open(ctx)
 
@@ -125,8 +129,9 @@ class S3BackupBackend (BackupBackend):
 			o_key = i["Key"]
 			o_size = i.get("Size", 0)
 			if not o_key.startswith(self.root_key):
-				raise RuntimeError("The endpoint returned an object " +
-					"irrelevant to the request: " + o_key)
+				raise APIFailError(
+					"The endpoint returned an object irrelevant to the request",
+					o_key)
 
 			l = o_key.find("/", len(prefix))
 			if l >= 0:
@@ -200,7 +205,7 @@ class S3BackupBackend (BackupBackend):
 	def rotate (self, ctx: GlobalContext):
 		ret = super()._do_fs_rotate(ctx)
 
-		if self.sc_rot:
+		if self.sc_rot and self.sc_rot != self.sc_sink:
 			def chsc (k):
 				self.client.copy_object(
 					Bucket = self.bucket,