Rewrite package-submodule-blacklist to python, make it work on both client and server

[dmach]

No description provided.

[eliroca]

In my testing we're missing the case when there is no _manifest file.

diff --git a/src/all-hooks/package-submodule-blacklist b/src/all-hooks/package-submodule-blacklist
index f153b74..a548809 100755
--- a/src/all-hooks/package-submodule-blacklist
+++ b/src/all-hooks/package-submodule-blacklist
@@ -7,8 +7,8 @@ import sys
 if os.environ.get("PACKAGE_SUBMODULE_BLACKLIST_SKIP", None):
     sys.exit(0)
 
-from osc.git_scm import GitStore
-from osc.gitea_api import Git
+from osc.git_scm.store import GitStore
+from osc.gitea_api.git import Git
 
 
 BLACKLIST_FILE = ".git-workflow/hooks/package-submodule-blacklist.txt"
@@ -25,7 +25,10 @@ def check_revision(rev: str) -> bool:
     store = GitStore(".", ref=rev, check=False)
     git = store._git
 
-    if git.is_bare:
+    if store.manifest is None:
+        directories = git.ls_tree(rev)
+        package_paths = [i["path"] for i in directories if i["file_type"] in ("directory", "submodule")]
+    elif git.is_bare:
         directories = git.ls_tree(rev)
         directories = [i["path"] for i in directories if i["file_type"] in ("directory", "submodule")]
         package_paths = store.manifest.get_package_paths_bare_git(store.topdir, directories=directories)
@@ -99,7 +102,7 @@ def main():
 
     for old_rev, new_rev in rev_list:
         # we want to enable 'not_all' only in the pre-receive hook
-        commits = git.get_commit_range(old_rev, new_rev, not_all=is_pre_receive)
+        commits = git.get_commit_range(old_rev, new_rev, not_all=bool(is_pre_receive))
         for sha in commits:
             if sha in seen:
                 continue

[dmach]

Could you give it another try?
It seems it's caused by bug I've fixed in openSUSE/osc#2169.
Normally, if there's no _manifest, osc sets store.manifest = Manifest({}) and that considers all top-level directories packages.
I've added a unit test for this case.