Solved ruff F401

https://chatgpt.com/share/69432655-a948-800f-8c0d-353921cdf644

.github/workflows/test-e2e.yml

@@ -11,7 +11,9 @@ jobs:
       fail-fast: false
       matrix:
         distro: [arch, debian, ubuntu, fedora, centos]
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

.github/workflows/test-env-nix.yml

@@ -12,7 +12,9 @@ jobs:
       fail-fast: false
       matrix:
         distro: [arch, debian, ubuntu, fedora, centos]
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

.github/workflows/test-env-virtual.yml

@@ -11,7 +11,9 @@ jobs:
       fail-fast: false
       matrix:
         distro: [arch, debian, ubuntu, fedora, centos]
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

.github/workflows/test-integration.yml

@@ -7,7 +7,9 @@ jobs:
   test-integration:
     runs-on: ubuntu-latest
     timeout-minutes: 30
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

.github/workflows/test-unit.yml

@@ -7,7 +7,9 @@ jobs:
   test-unit:
     runs-on: ubuntu-latest
     timeout-minutes: 30
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4

.github/workflows/test-virgin-root.yml

@@ -11,7 +11,9 @@ jobs:
       fail-fast: false
       matrix:
         distro: [arch, debian, ubuntu, fedora, centos]
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -19,13 +21,11 @@ jobs:
       - name: Show Docker version
         run: docker version
 
-      # 🔹 BUILD virgin image if missing
       - name: Build virgin container (${{ matrix.distro }})
         run: |
           set -euo pipefail
           PKGMGR_DISTRO="${{ matrix.distro }}" make build-missing-virgin
 
-      # 🔹 RUN test inside virgin image
       - name: Virgin ${{ matrix.distro }} pkgmgr test (root)
         run: |
           set -euo pipefail
@@ -34,6 +34,7 @@ jobs:
             -v "$PWD":/opt/src/pkgmgr \
             -v pkgmgr_repos:/root/Repositories \
             -v pkgmgr_pip_cache:/root/.cache/pip \
+            -e NIX_CONFIG="${NIX_CONFIG}" \
             -w /opt/src/pkgmgr \
             "pkgmgr-${{ matrix.distro }}-virgin" \
             bash -lc '

.github/workflows/test-virgin-user.yml

@@ -11,7 +11,9 @@ jobs:
       fail-fast: false
       matrix:
         distro: [arch, debian, ubuntu, fedora, centos]
-
+    env:
+      NIX_CONFIG: |
+        access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -19,19 +21,18 @@ jobs:
       - name: Show Docker version
         run: docker version
 
-      # 🔹 BUILD virgin image if missing
       - name: Build virgin container (${{ matrix.distro }})
         run: |
           set -euo pipefail
           PKGMGR_DISTRO="${{ matrix.distro }}" make build-missing-virgin
 
-      # 🔹 RUN test inside virgin image as non-root
       - name: Virgin ${{ matrix.distro }} pkgmgr test (user)
         run: |
           set -euo pipefail
 
           docker run --rm \
             -v "$PWD":/opt/src/pkgmgr \
+            -e NIX_CONFIG="${NIX_CONFIG}" \
             -w /opt/src/pkgmgr \
             "pkgmgr-${{ matrix.distro }}-virgin" \
             bash -lc '

CHANGELOG.md

@@ -1,3 +1,20 @@
+## [1.8.6] - 2025-12-17
+
+* Prevent Rate Limits during GitHub Nix Setups
+
+
+## [1.8.5] - 2025-12-17
+
+* * Clearer Git error handling, especially when a directory is not a Git repository.
+* More reliable repository verification with improved commit and GPG signature checks.
+* Better error messages and overall robustness when working with Git-based workflows.
+
+
+## [1.9.0] - 2025-12-17
+
+* Automated release.
+
+
 ## [1.8.4] - 2025-12-17
 
 * * Made pkgmgr’s base-layer role explicit by standardizing the Docker/CI mount path to *`/opt/src/pkgmgr`*.

Makefile

@@ -10,6 +10,10 @@ DISTROS ?= arch debian ubuntu fedora centos
 PKGMGR_DISTRO ?= arch
 export PKGMGR_DISTRO
 
+# Nix Config Variable (To avoid rate limit)
+NIX_CONFIG ?=
+export NIX_CONFIG
+
 # ------------------------------------------------------------
 # Base images
 # (kept for documentation/reference; actual build logic is in scripts/build)

flake.nix

@@ -32,7 +32,7 @@
         rec {
           pkgmgr = pyPkgs.buildPythonApplication {
             pname   = "package-manager";
-            version = "1.8.4";
+            version = "1.8.6";
 
             # Use the git repo as source
             src = ./.;

packaging/arch/PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Kevin Veen-Birkenbach <info@veen.world>
 
 pkgname=package-manager
-pkgver=1.8.4
+pkgver=1.8.6
 pkgrel=1
 pkgdesc="Local-flake wrapper for Kevin's package-manager (Nix-based)."
 arch=('any')

packaging/debian/changelog

@@ -1,3 +1,23 @@
+package-manager (1.8.6-1) unstable; urgency=medium
+
+  * Prevent Rate Limits during GitHub Nix Setups
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Wed, 17 Dec 2025 23:50:31 +0100
+
+package-manager (1.8.5-1) unstable; urgency=medium
+
+  * * Clearer Git error handling, especially when a directory is not a Git repository.
+* More reliable repository verification with improved commit and GPG signature checks.
+* Better error messages and overall robustness when working with Git-based workflows.
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Wed, 17 Dec 2025 22:15:48 +0100
+
+package-manager (1.9.0-1) unstable; urgency=medium
+
+  * Automated release.
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Wed, 17 Dec 2025 22:10:31 +0100
+
 package-manager (1.8.4-1) unstable; urgency=medium
 
   * * Made pkgmgr’s base-layer role explicit by standardizing the Docker/CI mount path to *`/opt/src/pkgmgr`*.

packaging/fedora/package-manager.spec

@@ -1,5 +1,5 @@
 Name:           package-manager
-Version:        1.8.4
+Version:        1.8.6
 Release:        1%{?dist}
 Summary:        Wrapper that runs Kevin's package-manager via Nix flake
 
@@ -74,6 +74,17 @@ echo ">>> package-manager removed. Nix itself was not removed."
 /usr/lib/package-manager/
 
 %changelog
+* Wed Dec 17 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 1.8.6-1
+- Prevent Rate Limits during GitHub Nix Setups
+
+* Wed Dec 17 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 1.8.5-1
+- * Clearer Git error handling, especially when a directory is not a Git repository.
+* More reliable repository verification with improved commit and GPG signature checks.
+* Better error messages and overall robustness when working with Git-based workflows.
+
+* Wed Dec 17 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 1.9.0-1
+- Automated release.
+
 * Wed Dec 17 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 1.8.4-1
 - * Made pkgmgr’s base-layer role explicit by standardizing the Docker/CI mount path to *`/opt/src/pkgmgr`*.
 

pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "kpmx"
-version = "1.8.4"
+version = "1.8.6"
 description = "Kevin's package-manager tool (pkgmgr)"
 readme = "README.md"
 requires-python = ">=3.9"

scripts/test/test-e2e.sh

@@ -11,6 +11,7 @@ docker run --rm \
   -v "pkgmgr_nix_cache_${PKGMGR_DISTRO}:/root/.cache/nix" \
   -e REINSTALL_PKGMGR=1 \
   -e TEST_PATTERN="${TEST_PATTERN}" \
+  -e NIX_CONFIG="${NIX_CONFIG}" \
   --workdir /opt/src/pkgmgr \
   "pkgmgr-${PKGMGR_DISTRO}" \
   bash -lc '

scripts/test/test-env-nix.sh

@@ -14,6 +14,7 @@ docker run --rm \
   -v "pkgmgr_nix_cache_${PKGMGR_DISTRO}:/root/.cache/nix" \
   --workdir /opt/src/pkgmgr \
   -e REINSTALL_PKGMGR=1 \
+  -e NIX_CONFIG="${NIX_CONFIG}" \
   "${IMAGE}" \
   bash -lc '
     set -euo pipefail

scripts/test/test-env-virtual.sh

@@ -19,6 +19,7 @@ if OUTPUT=$(docker run --rm \
     -e REINSTALL_PKGMGR=1 \
     -v "$(pwd):/opt/src/pkgmgr" \
     -w /opt/src/pkgmgr \
+    -e NIX_CONFIG="${NIX_CONFIG}" \
     "${IMAGE}" \
     bash -lc '
         set -euo pipefail

scripts/test/test-integration.sh

@@ -12,6 +12,7 @@ docker run --rm \
   --workdir /opt/src/pkgmgr \
   -e REINSTALL_PKGMGR=1 \
   -e TEST_PATTERN="${TEST_PATTERN}" \
+  -e NIX_CONFIG="${NIX_CONFIG}" \
   "pkgmgr-${PKGMGR_DISTRO}" \
   bash -lc '
     set -e;

scripts/test/test-unit.sh

@@ -12,6 +12,7 @@ docker run --rm \
   --workdir /opt/src/pkgmgr \
   -e REINSTALL_PKGMGR=1 \
   -e TEST_PATTERN="${TEST_PATTERN}" \
+  -e NIX_CONFIG="${NIX_CONFIG}" \
   "pkgmgr-${PKGMGR_DISTRO}" \
   bash -lc '
     set -e;

src/pkgmgr/actions/branch/close_branch.py

@@ -48,9 +48,13 @@ def close_branch(
 
     # Confirmation
     if not force:
-        answer = input(
+        answer = (
+            input(
                 f"Merge branch '{name}' into '{target_base}' and delete it afterwards? (y/N): "
-        ).strip().lower()
+            )
+            .strip()
+            .lower()
+        )
         if answer != "y":
             print("Aborted closing branch.")
             return

src/pkgmgr/actions/branch/drop_branch.py

@@ -41,9 +41,13 @@ def drop_branch(
 
     # Confirmation
     if not force:
-        answer = input(
+        answer = (
+            input(
                 f"Delete branch '{name}' locally and on origin? This is destructive! (y/N): "
-        ).strip().lower()
+            )
+            .strip()
+            .lower()
+        )
         if answer != "y":
             print("Aborted dropping branch.")
             return

src/pkgmgr/actions/config/add.py

@@ -2,6 +2,7 @@ import yaml
 import os
 from pkgmgr.core.config.save import save_user_config
 
+
 def interactive_add(config, USER_CONFIG_PATH: str):
     """Interactively prompt the user to add a new repository entry to the user config."""
     print("Adding a new repository configuration entry.")
@@ -9,7 +10,9 @@ def interactive_add(config,USER_CONFIG_PATH:str):
     new_entry["provider"] = input("Provider (e.g., github.com): ").strip()
     new_entry["account"] = input("Account (e.g., yourusername): ").strip()
     new_entry["repository"] = input("Repository name (e.g., mytool): ").strip()
-    new_entry["command"] = input("Command (optional, leave blank to auto-detect): ").strip()
+    new_entry["command"] = input(
+        "Command (optional, leave blank to auto-detect): "
+    ).strip()
     new_entry["description"] = input("Description (optional): ").strip()
     new_entry["replacement"] = input("Replacement (optional): ").strip()
     new_entry["alias"] = input("Alias (optional): ").strip()
@@ -25,7 +28,7 @@ def interactive_add(config,USER_CONFIG_PATH:str):
     confirm = input("Add this entry to user config? (y/N): ").strip().lower()
     if confirm == "y":
         if os.path.exists(USER_CONFIG_PATH):
-            with open(USER_CONFIG_PATH, 'r') as f:
+            with open(USER_CONFIG_PATH, "r") as f:
                 user_config = yaml.safe_load(f) or {}
         else:
             user_config = {"repositories": []}

src/pkgmgr/actions/config/init.py

@@ -107,11 +107,15 @@ def config_init(
                 # Already known?
                 if key in default_keys:
                     skipped += 1
-                    print(f"[SKIP]     (defaults)       {provider}/{account}/{repo_name}")
+                    print(
+                        f"[SKIP]     (defaults)       {provider}/{account}/{repo_name}"
+                    )
                     continue
                 if key in existing_keys:
                     skipped += 1
-                    print(f"[SKIP]     (user-config)    {provider}/{account}/{repo_name}")
+                    print(
+                        f"[SKIP]     (user-config)    {provider}/{account}/{repo_name}"
+                    )
                     continue
 
                 print(f"[ADD]      {provider}/{account}/{repo_name}")
@@ -121,7 +125,9 @@ def config_init(
                 if verified_commit:
                     print(f"[INFO]       Latest commit: {verified_commit}")
                 else:
-                    print("[WARN]       Could not read commit (not a git repo or no commits).")
+                    print(
+                        "[WARN]       Could not read commit (not a git repo or no commits)."
+                    )
 
                 entry: Dict[str, Any] = {
                     "provider": provider,

src/pkgmgr/actions/config/show.py

@@ -1,6 +1,7 @@
 import yaml
 from pkgmgr.core.config.load import load_config
 
+
 def show_config(selected_repos, user_config_path, full_config=False):
     """Display configuration for one or more repositories, or the entire merged config."""
     if full_config:
@@ -8,7 +9,9 @@ def show_config(selected_repos, user_config_path, full_config=False):
         print(yaml.dump(merged, default_flow_style=False))
     else:
         for repo in selected_repos:
-            identifier = f'{repo.get("provider")}/{repo.get("account")}/{repo.get("repository")}'
+            identifier = (
+                f"{repo.get('provider')}/{repo.get('account')}/{repo.get('repository')}"
+            )
             print(f"Repository: {identifier}")
             for key, value in repo.items():
                 print(f"  {key}: {value}")

src/pkgmgr/actions/install/__init__.py

@@ -66,10 +66,7 @@ def _ensure_repo_dir(
     repo_dir = get_repo_dir(repositories_base_dir, repo)
 
     if not os.path.exists(repo_dir):
-        print(
-            f"Repository directory '{repo_dir}' does not exist. "
-            "Cloning it now..."
-        )
+        print(f"Repository directory '{repo_dir}' does not exist. Cloning it now...")
         clone_repos(
             [repo],
             repositories_base_dir,
@@ -79,10 +76,7 @@ def _ensure_repo_dir(
             clone_mode,
         )
         if not os.path.exists(repo_dir):
-            print(
-                f"Cloning failed for repository {identifier}. "
-                "Skipping installation."
-            )
+            print(f"Cloning failed for repository {identifier}. Skipping installation.")
             return None
 
     return repo_dir
@@ -115,7 +109,9 @@ def _verify_repo(
 
         if silent:
             # Non-interactive mode: continue with a warning.
-            print(f"[Warning] Continuing despite verification failure for {identifier} (--silent).")
+            print(
+                f"[Warning] Continuing despite verification failure for {identifier} (--silent)."
+            )
         else:
             choice = input("Continue anyway? [y/N]: ").strip().lower()
             if choice != "y":
@@ -232,12 +228,16 @@ def install_repos(
             code = exc.code if isinstance(exc.code, int) else str(exc.code)
             failures.append((identifier, f"installer failed (exit={code})"))
             if not quiet:
-                print(f"[Warning] install: repository {identifier} failed (exit={code}). Continuing...")
+                print(
+                    f"[Warning] install: repository {identifier} failed (exit={code}). Continuing..."
+                )
             continue
         except Exception as exc:
             failures.append((identifier, f"unexpected error: {exc}"))
             if not quiet:
-                print(f"[Warning] install: repository {identifier} hit an unexpected error: {exc}. Continuing...")
+                print(
+                    f"[Warning] install: repository {identifier} hit an unexpected error: {exc}. Continuing..."
+                )
             continue
 
     if failures and emit_summary and not quiet:

src/pkgmgr/actions/install/installers/__init__.py

@@ -14,6 +14,10 @@ from pkgmgr.actions.install.installers.python import PythonInstaller  # noqa: F4
 from pkgmgr.actions.install.installers.makefile import MakefileInstaller  # noqa: F401
 
 # OS-specific installers
-from pkgmgr.actions.install.installers.os_packages.arch_pkgbuild import ArchPkgbuildInstaller  # noqa: F401
-from pkgmgr.actions.install.installers.os_packages.debian_control import DebianControlInstaller  # noqa: F401
+from pkgmgr.actions.install.installers.os_packages.arch_pkgbuild import (
+    ArchPkgbuildInstaller as ArchPkgbuildInstaller,
+)  # noqa: F401
+from pkgmgr.actions.install.installers.os_packages.debian_control import (
+    DebianControlInstaller as DebianControlInstaller,
+)  # noqa: F401
 from pkgmgr.actions.install.installers.os_packages.rpm_spec import RpmSpecInstaller  # noqa: F401

src/pkgmgr/actions/install/installers/base.py

@@ -41,7 +41,9 @@ class BaseInstaller(ABC):
             return caps
 
         for matcher in CAPABILITY_MATCHERS:
-            if matcher.applies_to_layer(self.layer) and matcher.is_provided(ctx, self.layer):
+            if matcher.applies_to_layer(self.layer) and matcher.is_provided(
+                ctx, self.layer
+            ):
                 caps.add(matcher.name)
 
         return caps

src/pkgmgr/actions/install/installers/makefile.py

@@ -16,7 +16,9 @@ class MakefileInstaller(BaseInstaller):
     def supports(self, ctx: RepoContext) -> bool:
         if os.environ.get("PKGMGR_DISABLE_MAKEFILE_INSTALLER") == "1":
             if not ctx.quiet:
-                print("[INFO] PKGMGR_DISABLE_MAKEFILE_INSTALLER=1 – skipping MakefileInstaller.")
+                print(
+                    "[INFO] PKGMGR_DISABLE_MAKEFILE_INSTALLER=1 – skipping MakefileInstaller."
+                )
             return False
 
         makefile_path = os.path.join(ctx.repo_dir, self.MAKEFILE_NAME)
@@ -46,7 +48,9 @@ class MakefileInstaller(BaseInstaller):
             return
 
         if not ctx.quiet:
-            print(f"[pkgmgr] Running make install for {ctx.identifier} (MakefileInstaller)")
+            print(
+                f"[pkgmgr] Running make install for {ctx.identifier} (MakefileInstaller)"
+            )
 
         run_command("make install", cwd=ctx.repo_dir, preview=ctx.preview)
 

src/pkgmgr/actions/install/installers/nix/conflicts.py

@@ -57,7 +57,9 @@ class NixConflictResolver:
 
             # 3) Fallback: output-name based lookup (also covers nix suggesting: `nix profile remove pkgmgr`)
             if not tokens:
-                tokens = self._profile.find_remove_tokens_for_output(ctx, self._runner, output)
+                tokens = self._profile.find_remove_tokens_for_output(
+                    ctx, self._runner, output
+                )
 
             if tokens:
                 if not quiet:
@@ -94,7 +96,9 @@ class NixConflictResolver:
                 continue
 
             if not quiet:
-                print("[nix] conflict detected but could not resolve profile entries to remove.")
+                print(
+                    "[nix] conflict detected but could not resolve profile entries to remove."
+                )
             return False
 
         return False

src/pkgmgr/actions/install/installers/nix/installer.py

@@ -75,7 +75,9 @@ class NixFlakeInstaller(BaseInstaller):
     # Core install path
     # ---------------------------------------------------------------------
 
-    def _install_only(self, ctx: "RepoContext", output: str, allow_failure: bool) -> None:
+    def _install_only(
+        self, ctx: "RepoContext", output: str, allow_failure: bool
+    ) -> None:
         install_cmd = f"nix profile install {self._installable(ctx, output)}"
 
         if not ctx.quiet:
@@ -96,7 +98,9 @@ class NixFlakeInstaller(BaseInstaller):
             output=output,
         ):
             if not ctx.quiet:
-                print(f"[nix] output '{output}' successfully installed after conflict cleanup.")
+                print(
+                    f"[nix] output '{output}' successfully installed after conflict cleanup."
+                )
             return
 
         if not ctx.quiet:
@@ -107,20 +111,26 @@ class NixFlakeInstaller(BaseInstaller):
 
         # If indices are supported, try legacy index-upgrade path.
         if self._indices_supported is not False:
-            indices = self._profile.find_installed_indices_for_output(ctx, self._runner, output)
+            indices = self._profile.find_installed_indices_for_output(
+                ctx, self._runner, output
+            )
 
             upgraded = False
             for idx in indices:
                 if self._upgrade_index(ctx, idx):
                     upgraded = True
                     if not ctx.quiet:
-                        print(f"[nix] output '{output}' successfully upgraded (index {idx}).")
+                        print(
+                            f"[nix] output '{output}' successfully upgraded (index {idx})."
+                        )
 
             if upgraded:
                 return
 
             if indices and not ctx.quiet:
-                print(f"[nix] upgrade failed; removing indices {indices} and reinstalling '{output}'.")
+                print(
+                    f"[nix] upgrade failed; removing indices {indices} and reinstalling '{output}'."
+                )
 
             for idx in indices:
                 self._remove_index(ctx, idx)
@@ -139,7 +149,9 @@ class NixFlakeInstaller(BaseInstaller):
                 print(f"[nix] output '{output}' successfully re-installed.")
             return
 
-        print(f"[ERROR] Failed to install Nix flake output '{output}' (exit {final.returncode})")
+        print(
+            f"[ERROR] Failed to install Nix flake output '{output}' (exit {final.returncode})"
+        )
         if not allow_failure:
             raise SystemExit(final.returncode)
 
@@ -149,7 +161,9 @@ class NixFlakeInstaller(BaseInstaller):
     # force_update path
     # ---------------------------------------------------------------------
 
-    def _force_upgrade_output(self, ctx: "RepoContext", output: str, allow_failure: bool) -> None:
+    def _force_upgrade_output(
+        self, ctx: "RepoContext", output: str, allow_failure: bool
+    ) -> None:
         # Prefer token path if indices unsupported (new nix)
         if self._indices_supported is False:
             self._remove_tokens_for_output(ctx, output)
@@ -158,14 +172,18 @@ class NixFlakeInstaller(BaseInstaller):
                 print(f"[nix] output '{output}' successfully upgraded.")
             return
 
-        indices = self._profile.find_installed_indices_for_output(ctx, self._runner, output)
+        indices = self._profile.find_installed_indices_for_output(
+            ctx, self._runner, output
+        )
 
         upgraded_any = False
         for idx in indices:
             if self._upgrade_index(ctx, idx):
                 upgraded_any = True
                 if not ctx.quiet:
-                    print(f"[nix] output '{output}' successfully upgraded (index {idx}).")
+                    print(
+                        f"[nix] output '{output}' successfully upgraded (index {idx})."
+                    )
 
         if upgraded_any:
             if not ctx.quiet:
@@ -173,7 +191,9 @@ class NixFlakeInstaller(BaseInstaller):
             return
 
         if indices and not ctx.quiet:
-            print(f"[nix] upgrade failed; removing indices {indices} and reinstalling '{output}'.")
+            print(
+                f"[nix] upgrade failed; removing indices {indices} and reinstalling '{output}'."
+            )
 
         for idx in indices:
             self._remove_index(ctx, idx)
@@ -223,7 +243,9 @@ class NixFlakeInstaller(BaseInstaller):
             return
 
         if not ctx.quiet:
-            print(f"[nix] indices unsupported; removing by token(s): {', '.join(tokens)}")
+            print(
+                f"[nix] indices unsupported; removing by token(s): {', '.join(tokens)}"
+            )
 
         for t in tokens:
             self._runner.run(ctx, f"nix profile remove {t}", allow_failure=True)

src/pkgmgr/actions/install/installers/nix/profile/inspector.py

@@ -101,7 +101,9 @@ class NixProfileInspector:
         data = self.list_json(ctx, runner)
         entries = normalize_elements(data)
 
-        tokens: List[str] = [out]  # critical: matches nix's own suggestion for conflicts
+        tokens: List[str] = [
+            out
+        ]  # critical: matches nix's own suggestion for conflicts
 
         for e in entries:
             if entry_matches_output(e, out):

src/pkgmgr/actions/install/installers/nix/profile_list.py

@@ -48,7 +48,9 @@ class NixProfileListReader:
 
         return uniq
 
-    def indices_matching_store_prefixes(self, ctx: "RepoContext", prefixes: List[str]) -> List[int]:
+    def indices_matching_store_prefixes(
+        self, ctx: "RepoContext", prefixes: List[str]
+    ) -> List[int]:
         prefixes = [self._store_prefix(p) for p in prefixes if p]
         prefixes = [p for p in prefixes if p]
         if not prefixes:

src/pkgmgr/actions/install/installers/nix/retry.py

@@ -11,6 +11,7 @@ if TYPE_CHECKING:
     from pkgmgr.actions.install.context import RepoContext
     from .runner import CommandRunner
 
+
 @dataclass(frozen=True)
 class RetryPolicy:
     max_attempts: int = 7
@@ -35,13 +36,19 @@ class GitHubRateLimitRetry:
         install_cmd: str,
     ) -> RunResult:
         quiet = bool(getattr(ctx, "quiet", False))
-        delays = list(self._fibonacci_backoff(self._policy.base_delay_seconds, self._policy.max_attempts))
+        delays = list(
+            self._fibonacci_backoff(
+                self._policy.base_delay_seconds, self._policy.max_attempts
+            )
+        )
 
         last: RunResult | None = None
 
         for attempt, base_delay in enumerate(delays, start=1):
             if not quiet:
-                print(f"[nix] attempt {attempt}/{self._policy.max_attempts}: {install_cmd}")
+                print(
+                    f"[nix] attempt {attempt}/{self._policy.max_attempts}: {install_cmd}"
+                )
 
             res = runner.run(ctx, install_cmd, allow_failure=True)
             last = res
@@ -56,7 +63,9 @@ class GitHubRateLimitRetry:
             if attempt >= self._policy.max_attempts:
                 break
 
-            jitter = random.randint(self._policy.jitter_seconds_min, self._policy.jitter_seconds_max)
+            jitter = random.randint(
+                self._policy.jitter_seconds_min, self._policy.jitter_seconds_max
+            )
             wait_time = base_delay + jitter
 
             if not quiet:
@@ -67,7 +76,11 @@ class GitHubRateLimitRetry:
 
             time.sleep(wait_time)
 
-        return last if last is not None else RunResult(returncode=1, stdout="", stderr="nix install retry failed")
+        return (
+            last
+            if last is not None
+            else RunResult(returncode=1, stdout="", stderr="nix install retry failed")
+        )
 
     @staticmethod
     def _is_github_rate_limit_error(text: str) -> bool:

src/pkgmgr/actions/install/installers/nix/runner.py

@@ -9,6 +9,7 @@ from .types import RunResult
 if TYPE_CHECKING:
     from pkgmgr.actions.install.context import RepoContext
 
+
 class CommandRunner:
     """
     Executes commands (shell=True) inside a repository directory (if provided).
@@ -40,7 +41,9 @@ class CommandRunner:
                 raise
             return RunResult(returncode=1, stdout="", stderr=str(e))
 
-        res = RunResult(returncode=p.returncode, stdout=p.stdout or "", stderr=p.stderr or "")
+        res = RunResult(
+            returncode=p.returncode, stdout=p.stdout or "", stderr=p.stderr or ""
+        )
 
         if res.returncode != 0 and not quiet:
             self._print_compact_failure(res)

src/pkgmgr/actions/install/installers/nix/textparse.py

@@ -20,7 +20,9 @@ class NixConflictTextParser:
         tokens: List[str] = []
         for m in pat.finditer(text or ""):
             t = (m.group(1) or "").strip()
-            if (t.startswith("'") and t.endswith("'")) or (t.startswith('"') and t.endswith('"')):
+            if (t.startswith("'") and t.endswith("'")) or (
+                t.startswith('"') and t.endswith('"')
+            ):
                 t = t[1:-1]
             if t:
                 tokens.append(t)

src/pkgmgr/actions/install/installers/python.py

@@ -14,7 +14,9 @@ class PythonInstaller(BaseInstaller):
 
     def supports(self, ctx: RepoContext) -> bool:
         if os.environ.get("PKGMGR_DISABLE_PYTHON_INSTALLER") == "1":
-            print("[INFO] PythonInstaller disabled via PKGMGR_DISABLE_PYTHON_INSTALLER.")
+            print(
+                "[INFO] PythonInstaller disabled via PKGMGR_DISABLE_PYTHON_INSTALLER."
+            )
             return False
 
         return os.path.exists(os.path.join(ctx.repo_dir, "pyproject.toml"))

src/pkgmgr/actions/install/pipeline.py

@@ -132,7 +132,11 @@ class InstallationPipeline:
                 continue
 
             if not quiet:
-                if ctx.force_update and state.layer is not None and installer_layer == state.layer:
+                if (
+                    ctx.force_update
+                    and state.layer is not None
+                    and installer_layer == state.layer
+                ):
                     print(
                         f"[pkgmgr] Running installer {installer.__class__.__name__} "
                         f"for {identifier} in '{repo_dir}' (upgrade requested)..."

src/pkgmgr/actions/mirror/merge_cmd.py

@@ -16,6 +16,7 @@ from .types import MirrorMap, Repository
 # Helpers
 # -----------------------------------------------------------------------------
 
+
 def _repo_key(repo: Repository) -> Tuple[str, str, str]:
     """
     Normalised key for identifying a repository in config files.
@@ -47,6 +48,7 @@ def _load_user_config(path: str) -> Dict[str, object]:
 # Main merge command
 # -----------------------------------------------------------------------------
 
+
 def merge_mirrors(
     selected_repos: List[Repository],
     repositories_base_dir: str,

src/pkgmgr/actions/mirror/setup_cmd.py

@@ -66,7 +66,9 @@ def _setup_remote_mirrors_for_repo(
 
     # Probe only git URLs (do not try ls-remote against PyPI etc.)
     # If there are no mirrors at all, probe the primary git URL.
-    git_mirrors = {k: v for k, v in ctx.resolved_mirrors.items() if _is_git_remote_url(v)}
+    git_mirrors = {
+        k: v for k, v in ctx.resolved_mirrors.items() if _is_git_remote_url(v)
+    }
 
     if not git_mirrors:
         primary = determine_primary_remote_url(repo, ctx)

src/pkgmgr/actions/proxy.py

@@ -4,7 +4,16 @@ from pkgmgr.core.repository.dir import get_repo_dir
 from pkgmgr.core.command.run import run_command
 import sys
 
-def exec_proxy_command(proxy_prefix: str, selected_repos, repositories_base_dir, all_repos, proxy_command: str, extra_args, preview: bool):
+
+def exec_proxy_command(
+    proxy_prefix: str,
+    selected_repos,
+    repositories_base_dir,
+    all_repos,
+    proxy_command: str,
+    extra_args,
+    preview: bool,
+):
     """Execute a given proxy command with extra arguments for each repository."""
     error_repos = []
     max_exit_code = 0
@@ -22,7 +31,9 @@ def exec_proxy_command(proxy_prefix: str, selected_repos, repositories_base_dir,
         try:
             run_command(full_cmd, cwd=repo_dir, preview=preview)
         except SystemExit as e:
-            print(f"[ERROR] Command failed in {repo_identifier} with exit code {e.code}.")
+            print(
+                f"[ERROR] Command failed in {repo_identifier} with exit code {e.code}."
+            )
             error_repos.append((repo_identifier, e.code))
             max_exit_code = max(max_exit_code, e.code)
 

src/pkgmgr/actions/release/files.py

@@ -121,7 +121,7 @@ def update_pyproject_version(
     pattern = r'^(version\s*=\s*")([^"]+)(")'
     new_content, count = re.subn(
         pattern,
-        lambda m: f'{m.group(1)}{new_version}{m.group(3)}',
+        lambda m: f"{m.group(1)}{new_version}{m.group(3)}",
         content,
         flags=re.MULTILINE,
     )
@@ -162,7 +162,7 @@ def update_flake_version(
     pattern = r'(version\s*=\s*")([^"]+)(")'
     new_content, count = re.subn(
         pattern,
-        lambda m: f'{m.group(1)}{new_version}{m.group(3)}',
+        lambda m: f"{m.group(1)}{new_version}{m.group(3)}",
         content,
     )
 

src/pkgmgr/actions/release/git_ops.py

@@ -80,7 +80,9 @@ def is_highest_version_tag(tag: str) -> bool:
         return True
 
     latest = max(parsed_all)
-    print(f"[INFO] Latest tag (parsed): v{'.'.join(map(str, latest))}, Current tag: {tag}")
+    print(
+        f"[INFO] Latest tag (parsed): v{'.'.join(map(str, latest))}, Current tag: {tag}"
+    )
     return parsed_current >= latest
 
 
@@ -93,7 +95,9 @@ def update_latest_tag(new_tag: str, *, preview: bool = False) -> None:
     - 'latest' is forced (floating tag), therefore the push uses --force.
     """
     target_ref = f"{new_tag}^{{}}"
-    print(f"[INFO] Updating 'latest' tag to point at {new_tag} (commit {target_ref})...")
+    print(
+        f"[INFO] Updating 'latest' tag to point at {new_tag} (commit {target_ref})..."
+    )
 
     tag_force_annotated(
         name="latest",

src/pkgmgr/actions/release/workflow.py

@@ -76,7 +76,9 @@ def _release_impl(
     if paths.arch_pkgbuild:
         update_pkgbuild_version(paths.arch_pkgbuild, new_ver_str, preview=preview)
     else:
-        print("[INFO] No PKGBUILD found (packaging/arch/PKGBUILD or PKGBUILD). Skipping.")
+        print(
+            "[INFO] No PKGBUILD found (packaging/arch/PKGBUILD or PKGBUILD). Skipping."
+        )
 
     if paths.rpm_spec:
         update_spec_version(paths.rpm_spec, new_ver_str, preview=preview)
@@ -123,7 +125,9 @@ def _release_impl(
         paths.rpm_spec,
         paths.debian_changelog,
     ]
-    existing_files = [p for p in files_to_add if isinstance(p, str) and p and os.path.exists(p)]
+    existing_files = [
+        p for p in files_to_add if isinstance(p, str) and p and os.path.exists(p)
+    ]
 
     if preview:
         add(existing_files, preview=True)
@@ -135,13 +139,17 @@ def _release_impl(
         if is_highest_version_tag(new_tag):
             update_latest_tag(new_tag, preview=True)
         else:
-            print(f"[PREVIEW] Skipping 'latest' update (tag {new_tag} is not the highest).")
+            print(
+                f"[PREVIEW] Skipping 'latest' update (tag {new_tag} is not the highest)."
+            )
 
         if close and branch not in ("main", "master"):
             if force:
                 print(f"[PREVIEW] Would delete branch {branch} (forced).")
             else:
-                print(f"[PREVIEW] Would ask whether to delete branch {branch} after release.")
+                print(
+                    f"[PREVIEW] Would ask whether to delete branch {branch} after release."
+                )
         return
 
     add(existing_files, preview=False)
@@ -157,7 +165,9 @@ def _release_impl(
         if is_highest_version_tag(new_tag):
             update_latest_tag(new_tag, preview=False)
         else:
-            print(f"[INFO] Skipping 'latest' update (tag {new_tag} is not the highest).")
+            print(
+                f"[INFO] Skipping 'latest' update (tag {new_tag} is not the highest)."
+            )
     except GitRunError as exc:
         print(f"[WARN] Failed to update floating 'latest' tag for {new_tag}: {exc}")
         print("'latest' tag was not updated.")
@@ -166,7 +176,9 @@ def _release_impl(
 
     if close:
         if branch in ("main", "master"):
-            print(f"[INFO] close=True but current branch is {branch}; skipping branch deletion.")
+            print(
+                f"[INFO] close=True but current branch is {branch}; skipping branch deletion."
+            )
             return
 
         if not should_delete_branch(force=force):

src/pkgmgr/actions/repository/clone.py

@@ -55,7 +55,9 @@ def clone_repos(
 
         clone_url = _build_clone_url(repo, clone_mode)
         if not clone_url:
-            print(f"[WARNING] Cannot build clone URL for '{repo_identifier}'. Skipping.")
+            print(
+                f"[WARNING] Cannot build clone URL for '{repo_identifier}'. Skipping."
+            )
             continue
 
         shallow = clone_mode == "shallow"
@@ -84,7 +86,11 @@ def clone_repos(
                 continue
 
             print(f"[WARNING] SSH clone failed for '{repo_identifier}': {exc}")
-            choice = input("Do you want to attempt HTTPS clone instead? (y/N): ").strip().lower()
+            choice = (
+                input("Do you want to attempt HTTPS clone instead? (y/N): ")
+                .strip()
+                .lower()
+            )
             if choice != "y":
                 print(f"[INFO] HTTPS clone not attempted for '{repo_identifier}'.")
                 continue

src/pkgmgr/actions/repository/create/parser.py

@@ -63,6 +63,4 @@ def _strip_git_suffix(name: str) -> str:
 
 def _ensure_valid_repo_name(name: str) -> None:
     if not _NAME_RE.fullmatch(name):
-        raise ValueError(
-            "Repository name must match: lowercase a-z, 0-9, '_' and '-'."
-        )
+        raise ValueError("Repository name must match: lowercase a-z, 0-9, '_' and '-'.")

src/pkgmgr/actions/repository/create/templates.py

@@ -66,9 +66,7 @@ class TemplateRenderer:
         for root, _, files in os.walk(self.templates_dir):
             for fn in files:
                 if fn.endswith(".j2"):
-                    rel = os.path.relpath(
-                        os.path.join(root, fn), self.templates_dir
-                    )
+                    rel = os.path.relpath(os.path.join(root, fn), self.templates_dir)
                     print(f"[Preview] Would render template: {rel} -> {rel[:-3]}")
 
     @staticmethod

src/pkgmgr/actions/repository/deinstall.py

@@ -24,9 +24,13 @@ def deinstall_repos(
 
         # Remove alias link/file (interactive)
         if os.path.exists(alias_path):
-            confirm = input(
+            confirm = (
+                input(
                     f"Are you sure you want to delete link '{alias_path}' for {repo_identifier}? [y/N]: "
-            ).strip().lower()
+                )
+                .strip()
+                .lower()
+            )
             if confirm == "y":
                 if preview:
                     print(f"[Preview] Would remove link '{alias_path}'.")

src/pkgmgr/actions/repository/delete.py

@@ -3,19 +3,30 @@ import os
 from pkgmgr.core.repository.identifier import get_repo_identifier
 from pkgmgr.core.repository.dir import get_repo_dir
 
+
 def delete_repos(selected_repos, repositories_base_dir, all_repos, preview=False):
     for repo in selected_repos:
         repo_identifier = get_repo_identifier(repo, all_repos)
         repo_dir = get_repo_dir(repositories_base_dir, repo)
         if os.path.exists(repo_dir):
-            confirm = input(f"Are you sure you want to delete directory '{repo_dir}' for {repo_identifier}? [y/N]: ").strip().lower()
+            confirm = (
+                input(
+                    f"Are you sure you want to delete directory '{repo_dir}' for {repo_identifier}? [y/N]: "
+                )
+                .strip()
+                .lower()
+            )
             if confirm == "y":
                 if preview:
-                    print(f"[Preview] Would delete directory '{repo_dir}' for {repo_identifier}.")
+                    print(
+                        f"[Preview] Would delete directory '{repo_dir}' for {repo_identifier}."
+                    )
                 else:
                     try:
                         shutil.rmtree(repo_dir)
-                        print(f"Deleted repository directory '{repo_dir}' for {repo_identifier}.")
+                        print(
+                            f"Deleted repository directory '{repo_dir}' for {repo_identifier}."
+                        )
                     except Exception as e:
                         print(f"Error deleting '{repo_dir}' for {repo_identifier}: {e}")
             else:

src/pkgmgr/actions/repository/list.py

@@ -233,9 +233,7 @@ def list_repositories(
             categories.append(str(repo["category"]))
 
         yaml_tags: List[str] = list(map(str, repo.get("tags", [])))
-        display_tags: List[str] = sorted(
-            set(yaml_tags + list(map(str, extra_tags)))
-        )
+        display_tags: List[str] = sorted(set(yaml_tags + list(map(str, extra_tags))))
 
         rows.append(
             {
@@ -288,13 +286,7 @@ def list_repositories(
         status_padded = status.ljust(status_width)
         status_colored = _color_status(status_padded)
 
-        print(
-            f"{ident_col}  "
-            f"{status_colored}  "
-            f"{cat_col}  "
-            f"{tag_col}  "
-            f"{dir_col}"
-        )
+        print(f"{ident_col}  {status_colored}  {cat_col}  {tag_col}  {dir_col}")
 
     # ------------------------------------------------------------------
     # Detailed section (alias value red, same status coloring)

src/pkgmgr/actions/update/manager.py

@@ -55,12 +55,16 @@ class UpdateManager:
                 code = exc.code if isinstance(exc.code, int) else str(exc.code)
                 failures.append((identifier, f"pull failed (exit={code})"))
                 if not quiet:
-                    print(f"[Warning] update: pull failed for {identifier} (exit={code}). Continuing...")
+                    print(
+                        f"[Warning] update: pull failed for {identifier} (exit={code}). Continuing..."
+                    )
                 continue
             except Exception as exc:
                 failures.append((identifier, f"pull failed: {exc}"))
                 if not quiet:
-                    print(f"[Warning] update: pull failed for {identifier}: {exc}. Continuing...")
+                    print(
+                        f"[Warning] update: pull failed for {identifier}: {exc}. Continuing..."
+                    )
                 continue
 
             try:
@@ -82,12 +86,16 @@ class UpdateManager:
                 code = exc.code if isinstance(exc.code, int) else str(exc.code)
                 failures.append((identifier, f"install failed (exit={code})"))
                 if not quiet:
-                    print(f"[Warning] update: install failed for {identifier} (exit={code}). Continuing...")
+                    print(
+                        f"[Warning] update: install failed for {identifier} (exit={code}). Continuing..."
+                    )
                 continue
             except Exception as exc:
                 failures.append((identifier, f"install failed: {exc}"))
                 if not quiet:
-                    print(f"[Warning] update: install failed for {identifier}: {exc}. Continuing...")
+                    print(
+                        f"[Warning] update: install failed for {identifier}: {exc}. Continuing..."
+                    )
                 continue
 
         if failures and not quiet:

src/pkgmgr/actions/update/os_release.py

@@ -31,6 +31,7 @@ class OSReleaseInfo:
     """
     Minimal /etc/os-release representation for distro detection.
     """
+
     id: str = ""
     id_like: str = ""
     pretty_name: str = ""
@@ -63,4 +64,6 @@ class OSReleaseInfo:
 
     def is_fedora_family(self) -> bool:
         ids = self.ids()
-        return bool(ids.intersection({"fedora", "rhel", "centos", "rocky", "almalinux"}))
+        return bool(
+            ids.intersection({"fedora", "rhel", "centos", "rocky", "almalinux"})
+        )

src/pkgmgr/actions/update/system_updater.py

@@ -58,7 +58,9 @@ class SystemUpdater:
             run_command("sudo pacman -Syu --noconfirm", preview=preview)
             return
 
-        print("[Warning] Cannot update Arch system: missing required tools (sudo/yay/pacman).")
+        print(
+            "[Warning] Cannot update Arch system: missing required tools (sudo/yay/pacman)."
+        )
 
     def _update_debian(self, *, preview: bool) -> None:
         from pkgmgr.core.command.run import run_command
@@ -67,7 +69,9 @@ class SystemUpdater:
         apt_get = shutil.which("apt-get")
 
         if not (sudo and apt_get):
-            print("[Warning] Cannot update Debian/Ubuntu system: missing required tools (sudo/apt-get).")
+            print(
+                "[Warning] Cannot update Debian/Ubuntu system: missing required tools (sudo/apt-get)."
+            )
             return
 
         env = "DEBIAN_FRONTEND=noninteractive"

src/pkgmgr/cli/__init__.py

@@ -29,6 +29,7 @@ For details on any command, run:
   \033[1mpkgmgr <command> --help\033[0m
 """
 
+
 def main() -> None:
     """
     Entry point for the pkgmgr CLI.
@@ -41,9 +42,7 @@ def main() -> None:
     repositories_dir = os.path.expanduser(
         directories.get("repositories", "~/Repositories")
     )
-    binaries_dir = os.path.expanduser(
-        directories.get("binaries", "~/.local/bin")
-    )
+    binaries_dir = os.path.expanduser(directories.get("binaries", "~/.local/bin"))
 
     # Ensure the merged config actually contains the resolved directories
     config_merged.setdefault("directories", {})

src/pkgmgr/cli/commands/changelog.py

@@ -135,9 +135,7 @@ def handle_changelog(
                     target_tag=range_arg,
                 )
                 if cur_tag is None:
-                    print(
-                        f"[WARN] Tag {range_arg!r} not found or not a SemVer tag."
-                    )
+                    print(f"[WARN] Tag {range_arg!r} not found or not a SemVer tag.")
                     print("[INFO] Falling back to full history.")
                     from_ref = None
                     to_ref = None

src/pkgmgr/cli/commands/config.py

@@ -213,9 +213,7 @@ def handle_config(args, ctx: CLIContext) -> None:
                 )
                 if key == mod_key:
                     entry["ignore"] = args.set == "true"
-                    print(
-                        f"Set ignore for {key} to {entry['ignore']}"
-                    )
+                    print(f"Set ignore for {key} to {entry['ignore']}")
 
         save_user_config(user_config, user_config_path)
         return

src/pkgmgr/cli/commands/mirror.py

@@ -4,7 +4,12 @@ from __future__ import annotations
 import sys
 from typing import Any, Dict, List
 
-from pkgmgr.actions.mirror import diff_mirrors, list_mirrors, merge_mirrors, setup_mirrors
+from pkgmgr.actions.mirror import (
+    diff_mirrors,
+    list_mirrors,
+    merge_mirrors,
+    setup_mirrors,
+)
 from pkgmgr.cli.context import CLIContext
 
 Repository = Dict[str, Any]
@@ -56,11 +61,15 @@ def handle_mirror_command(
         preview = getattr(args, "preview", False)
 
         if source == target:
-            print("[ERROR] For 'mirror merge', source and target must differ (config vs file).")
+            print(
+                "[ERROR] For 'mirror merge', source and target must differ (config vs file)."
+            )
             sys.exit(2)
 
         explicit_config_path = getattr(args, "config_path", None)
-        user_config_path = explicit_config_path or getattr(ctx, "user_config_path", None)
+        user_config_path = explicit_config_path or getattr(
+            ctx, "user_config_path", None
+        )
 
         merge_mirrors(
             selected_repos=selected,

src/pkgmgr/cli/commands/publish.py

@@ -18,7 +18,9 @@ def handle_publish(args, ctx: CLIContext, selected: List[Repository]) -> None:
 
     for repo in selected:
         identifier = get_repo_identifier(repo, ctx.all_repositories)
-        repo_dir = repo.get("directory") or get_repo_dir(ctx.repositories_base_dir, repo)
+        repo_dir = repo.get("directory") or get_repo_dir(
+            ctx.repositories_base_dir, repo
+        )
 
         if not os.path.isdir(repo_dir):
             print(f"[WARN] Skipping {identifier}: directory missing.")

src/pkgmgr/cli/commands/release.py

@@ -36,9 +36,13 @@ def handle_release(
         identifier = get_repo_identifier(repo, ctx.all_repositories)
 
         try:
-            repo_dir = repo.get("directory") or get_repo_dir(ctx.repositories_base_dir, repo)
+            repo_dir = repo.get("directory") or get_repo_dir(
+                ctx.repositories_base_dir, repo
+            )
         except Exception as exc:
-            print(f"[WARN] Skipping repository {identifier}: failed to resolve directory: {exc}")
+            print(
+                f"[WARN] Skipping repository {identifier}: failed to resolve directory: {exc}"
+            )
             continue
 
         if not os.path.isdir(repo_dir):

src/pkgmgr/cli/commands/repos.py

@@ -32,9 +32,8 @@ def _resolve_repository_directory(repository: Repository, ctx: CLIContext) -> st
     if repo_dir:
         return repo_dir
 
-    base_dir = (
-        getattr(ctx, "repositories_base_dir", None)
-        or getattr(ctx, "repositories_dir", None)
+    base_dir = getattr(ctx, "repositories_base_dir", None) or getattr(
+        ctx, "repositories_dir", None
     )
     if not base_dir:
         raise RuntimeError(

src/pkgmgr/cli/parser/branch_cmd.py

@@ -33,8 +33,7 @@ def add_branch_subparsers(
         "name",
         nargs="?",
         help=(
-            "Name of the new branch (optional; will be asked interactively "
-            "if omitted)"
+            "Name of the new branch (optional; will be asked interactively if omitted)"
         ),
     )
     branch_open.add_argument(
@@ -54,8 +53,7 @@ def add_branch_subparsers(
         "name",
         nargs="?",
         help=(
-            "Name of the branch to close (optional; current branch is used "
-            "if omitted)"
+            "Name of the branch to close (optional; current branch is used if omitted)"
         ),
     )
     branch_close.add_argument(
@@ -84,8 +82,7 @@ def add_branch_subparsers(
         "name",
         nargs="?",
         help=(
-            "Name of the branch to drop (optional; current branch is used "
-            "if omitted)"
+            "Name of the branch to drop (optional; current branch is used if omitted)"
         ),
     )
     branch_drop.add_argument(

src/pkgmgr/cli/parser/mirror_cmd.py

@@ -20,7 +20,9 @@ def add_mirror_subparsers(subparsers: argparse._SubParsersAction) -> None:
         required=True,
     )
 
-    mirror_list = mirror_subparsers.add_parser("list", help="List configured mirrors for repositories")
+    mirror_list = mirror_subparsers.add_parser(
+        "list", help="List configured mirrors for repositories"
+    )
     add_identifier_arguments(mirror_list)
     mirror_list.add_argument(
         "--source",
@@ -29,15 +31,21 @@ def add_mirror_subparsers(subparsers: argparse._SubParsersAction) -> None:
         help="Which mirror source to show.",
     )
 
-    mirror_diff = mirror_subparsers.add_parser("diff", help="Show differences between config mirrors and MIRRORS file")
+    mirror_diff = mirror_subparsers.add_parser(
+        "diff", help="Show differences between config mirrors and MIRRORS file"
+    )
     add_identifier_arguments(mirror_diff)
 
     mirror_merge = mirror_subparsers.add_parser(
         "merge",
         help="Merge mirrors between config and MIRRORS file (example: pkgmgr mirror merge config file --all)",
     )
-    mirror_merge.add_argument("source", choices=["config", "file"], help="Source of mirrors.")
-    mirror_merge.add_argument("target", choices=["config", "file"], help="Target of mirrors.")
+    mirror_merge.add_argument(
+        "source", choices=["config", "file"], help="Source of mirrors."
+    )
+    mirror_merge.add_argument(
+        "target", choices=["config", "file"], help="Target of mirrors."
+    )
     add_identifier_arguments(mirror_merge)
     mirror_merge.add_argument(
         "--config-path",

src/pkgmgr/cli/parser/navigation_cmd.py

@@ -48,9 +48,6 @@ def add_navigation_subparsers(
         "--command",
         nargs=argparse.REMAINDER,
         dest="shell_command",
-        help=(
-            "The shell command (and its arguments) to execute in each "
-            "repository"
-        ),
+        help=("The shell command (and its arguments) to execute in each repository"),
         default=[],
     )

src/pkgmgr/cli/proxy.py

@@ -53,10 +53,7 @@ def _add_proxy_identifier_arguments(parser: argparse.ArgumentParser) -> None:
     parser.add_argument(
         "identifiers",
         nargs="*",
-        help=(
-            "Identifier(s) for repositories. "
-            "Default: Repository of current folder."
-        ),
+        help=("Identifier(s) for repositories. Default: Repository of current folder."),
     )
     parser.add_argument(
         "--all",
@@ -118,12 +115,7 @@ def _proxy_has_explicit_selection(args: argparse.Namespace) -> bool:
     string_filter = getattr(args, "string", "") or ""
 
     # Proxy commands currently do not support --tag, so it is not checked here.
-    return bool(
-        use_all
-        or identifiers
-        or categories
-        or string_filter
-    )
+    return bool(use_all or identifiers or categories or string_filter)
 
 
 def _select_repo_for_current_directory(
@@ -204,9 +196,7 @@ def maybe_handle_proxy(args: argparse.Namespace, ctx: CLIContext) -> bool:
     If the top-level command is one of the proxy subcommands
     (git / docker / docker compose), handle it here and return True.
     """
-    all_proxy_subcommands = {
-        sub for subs in PROXY_COMMANDS.values() for sub in subs
-    }
+    all_proxy_subcommands = {sub for subs in PROXY_COMMANDS.values() for sub in subs}
 
     if args.command not in all_proxy_subcommands:
         return False

src/pkgmgr/cli/tools/paths.py

@@ -22,9 +22,8 @@ def resolve_repository_path(repository: Repository, ctx: CLIContext) -> str:
         if value:
             return value
 
-    base_dir = (
-        getattr(ctx, "repositories_base_dir", None)
-        or getattr(ctx, "repositories_dir", None)
+    base_dir = getattr(ctx, "repositories_base_dir", None) or getattr(
+        ctx, "repositories_dir", None
     )
     if not base_dir:
         raise RuntimeError(

src/pkgmgr/cli/tools/vscode.py

@@ -57,7 +57,9 @@ def _build_workspace_filename(identifiers: List[str]) -> str:
     return "_".join(sorted_identifiers) + ".code-workspace"
 
 
-def _build_workspace_data(selected: List[Repository], ctx: CLIContext) -> Dict[str, Any]:
+def _build_workspace_data(
+    selected: List[Repository], ctx: CLIContext
+) -> Dict[str, Any]:
     folders = [{"path": resolve_repository_path(repo, ctx)} for repo in selected]
     return {
         "folders": folders,

src/pkgmgr/core/command/alias.py

@@ -2,6 +2,7 @@ import os
 import hashlib
 import re
 
+
 def generate_alias(repo, bin_dir, existing_aliases):
     """
     Generate an alias for a repository based on its repository name.

src/pkgmgr/core/command/ink.py

@@ -98,8 +98,7 @@ def create_ink(
         if alias_name == repo_identifier:
             if not quiet:
                 print(
-                    f"Alias '{alias_name}' equals identifier. "
-                    "Skipping alias creation."
+                    f"Alias '{alias_name}' equals identifier. Skipping alias creation."
                 )
             return
 

src/pkgmgr/core/command/layer.py

@@ -8,6 +8,7 @@ class CliLayer(str, Enum):
     """
     CLI layer precedence (lower number = stronger layer).
     """
+
     OS_PACKAGES = "os-packages"
     NIX = "nix"
     PYTHON = "python"

src/pkgmgr/core/command/resolve.py

@@ -34,11 +34,7 @@ def _nix_binary_candidates(home: str, names: List[str]) -> List[str]:
     """
     Build possible Nix profile binary paths for a list of candidate names.
     """
-    return [
-        os.path.join(home, ".nix-profile", "bin", name)
-        for name in names
-        if name
-    ]
+    return [os.path.join(home, ".nix-profile", "bin", name) for name in names if name]
 
 
 def _path_binary_candidates(names: List[str]) -> List[str]:
@@ -148,7 +144,8 @@ def resolve_command_for_repo(
 
     # c) Nix profile binaries
     nix_binaries = [
-        path for path in _nix_binary_candidates(home, candidate_names)
+        path
+        for path in _nix_binary_candidates(home, candidate_names)
         if _is_executable(path)
     ]
     nix_binary = nix_binaries[0] if nix_binaries else None

src/pkgmgr/core/config/load.py

@@ -51,6 +51,7 @@ Repo = Dict[str, Any]
 # Hilfsfunktionen
 # ---------------------------------------------------------------------------
 
+
 def _deep_merge(base: Dict[str, Any], override: Dict[str, Any]) -> Dict[str, Any]:
     """
     Recursively merge two dictionaries.
@@ -58,11 +59,7 @@ def _deep_merge(base: Dict[str, Any], override: Dict[str, Any]) -> Dict[str, Any
     Values from `override` win over values in `base`.
     """
     for key, value in override.items():
-        if (
-            key in base
-            and isinstance(base[key], dict)
-            and isinstance(value, dict)
-        ):
+        if key in base and isinstance(base[key], dict) and isinstance(value, dict):
             _deep_merge(base[key], value)
         else:
             base[key] = value
@@ -93,9 +90,7 @@ def _merge_repo_lists(
     - Wenn category_name gesetzt ist, wird dieser in
       repo["category_files"] eingetragen.
     """
-    index: Dict[Tuple[str, str, str], Repo] = {
-        _repo_key(r): r for r in base_list
-    }
+    index: Dict[Tuple[str, str, str], Repo] = {_repo_key(r): r for r in base_list}
 
     for src in new_list:
         key = _repo_key(src)
@@ -233,10 +228,12 @@ def _load_defaults_from_package_or_project() -> Dict[str, Any]:
 
     return {"directories": {}, "repositories": []}
 
+
 # ---------------------------------------------------------------------------
 # Hauptfunktion
 # ---------------------------------------------------------------------------
 
+
 def load_config(user_config_path: str) -> Dict[str, Any]:
     """
     Load and merge configuration for pkgmgr.
@@ -289,8 +286,12 @@ def load_config(user_config_path: str) -> Dict[str, Any]:
 
     # repositories
     merged["repositories"] = []
-    _merge_repo_lists(merged["repositories"], defaults["repositories"], category_name=None)
-    _merge_repo_lists(merged["repositories"], user_cfg["repositories"], category_name=None)
+    _merge_repo_lists(
+        merged["repositories"], defaults["repositories"], category_name=None
+    )
+    _merge_repo_lists(
+        merged["repositories"], user_cfg["repositories"], category_name=None
+    )
 
     # andere Top-Level-Keys (falls vorhanden)
     other_keys = (set(defaults.keys()) | set(user_cfg.keys())) - {

src/pkgmgr/core/config/save.py

@@ -1,9 +1,10 @@
 import yaml
 import os
 
+
 def save_user_config(user_config, USER_CONFIG_PATH: str):
     """Save the user configuration to USER_CONFIG_PATH."""
     os.makedirs(os.path.dirname(USER_CONFIG_PATH), exist_ok=True)
-    with open(USER_CONFIG_PATH, 'w') as f:
+    with open(USER_CONFIG_PATH, "w") as f:
         yaml.dump(user_config, f)
     print(f"User configuration updated in {USER_CONFIG_PATH}.")

src/pkgmgr/core/credentials/providers/env.py

@@ -16,7 +16,9 @@ class EnvTokenProvider:
     source_name: str = "env"
 
     def get(self, request: TokenRequest) -> Optional[TokenResult]:
-        for key in env_var_candidates(request.provider_kind, request.host, request.owner):
+        for key in env_var_candidates(
+            request.provider_kind, request.host, request.owner
+        ):
             val = os.environ.get(key)
             if val:
                 return TokenResult(token=val.strip(), source=self.source_name)

src/pkgmgr/core/credentials/providers/gh.py

@@ -15,6 +15,7 @@ class GhTokenProvider:
 
     This does NOT persist anything; it only reads what `gh` already knows.
     """
+
     source_name: str = "gh"
 
     def get(self, request: TokenRequest) -> Optional[TokenResult]:

src/pkgmgr/core/credentials/providers/keyring.py

@@ -21,9 +21,7 @@ def _import_keyring():
     try:
         import keyring  # type: ignore
     except Exception as exc:  # noqa: BLE001
-        raise KeyringUnavailableError(
-            "python-keyring is not installed."
-        ) from exc
+        raise KeyringUnavailableError("python-keyring is not installed.") from exc
 
     # Some environments have keyring installed but no usable backend.
     # We do a lightweight "backend sanity check" by attempting to read the backend.

src/pkgmgr/core/credentials/resolver.py

@@ -9,7 +9,12 @@ from .providers.env import EnvTokenProvider
 from .providers.gh import GhTokenProvider
 from .providers.keyring import KeyringTokenProvider
 from .providers.prompt import PromptTokenProvider
-from .types import KeyringUnavailableError, NoCredentialsError, TokenRequest, TokenResult
+from .types import (
+    KeyringUnavailableError,
+    NoCredentialsError,
+    TokenRequest,
+    TokenResult,
+)
 from .validate import validate_token
 
 
@@ -55,7 +60,10 @@ class TokenResolver:
         print(f"       {msg}", file=sys.stderr)
         print("       Tokens will NOT be persisted securely.", file=sys.stderr)
         print("", file=sys.stderr)
-        print("       To enable secure token storage, install python-keyring:", file=sys.stderr)
+        print(
+            "       To enable secure token storage, install python-keyring:",
+            file=sys.stderr,
+        )
         print("         pip install keyring", file=sys.stderr)
         print("", file=sys.stderr)
         print("       Or install via system packages:", file=sys.stderr)

src/pkgmgr/core/credentials/store_keys.py

@@ -13,7 +13,9 @@ class KeyringKey:
     username: str
 
 
-def build_keyring_key(provider_kind: str, host: str, owner: Optional[str]) -> KeyringKey:
+def build_keyring_key(
+    provider_kind: str, host: str, owner: Optional[str]
+) -> KeyringKey:
     """Build a stable keyring key.
 
     - service: "pkgmgr:<provider>"
@@ -21,11 +23,15 @@ def build_keyring_key(provider_kind: str, host: str, owner: Optional[str]) -> Ke
     """
     provider_kind = str(provider_kind).strip().lower()
     host = str(host).strip()
-    owner_part = (str(owner).strip() if owner else "-")
-    return KeyringKey(service=f"pkgmgr:{provider_kind}", username=f"{host}|{owner_part}")
+    owner_part = str(owner).strip() if owner else "-"
+    return KeyringKey(
+        service=f"pkgmgr:{provider_kind}", username=f"{host}|{owner_part}"
+    )
 
 
-def env_var_candidates(provider_kind: str, host: str, owner: Optional[str]) -> list[str]:
+def env_var_candidates(
+    provider_kind: str, host: str, owner: Optional[str]
+) -> list[str]:
     """Return a list of environment variable names to try.
 
     Order is from most specific to most generic.

src/pkgmgr/core/git/commands/add_all.py

@@ -18,4 +18,6 @@ def add_all(*, cwd: str = ".", preview: bool = False) -> None:
     try:
         run(["add", "-A"], cwd=cwd, preview=preview)
     except GitRunError as exc:
-        raise GitAddAllError("Failed to stage all changes with `git add -A`.", cwd=cwd) from exc
+        raise GitAddAllError(
+            "Failed to stage all changes with `git add -A`.", cwd=cwd
+        ) from exc

src/pkgmgr/core/git/commands/branch_move.py

@@ -18,4 +18,6 @@ def branch_move(branch: str, *, cwd: str = ".", preview: bool = False) -> None:
     try:
         run(["branch", "-M", branch], cwd=cwd, preview=preview)
     except GitRunError as exc:
-        raise GitBranchMoveError(f"Failed to move/rename current branch to {branch!r}.", cwd=cwd) from exc
+        raise GitBranchMoveError(
+            f"Failed to move/rename current branch to {branch!r}.", cwd=cwd
+        ) from exc

src/pkgmgr/core/git/errors.py

@@ -4,21 +4,26 @@ from __future__ import annotations
 class GitBaseError(RuntimeError):
     """Base error raised for Git related failures."""
 
+
 class GitRunError(GitBaseError):
     """Base error raised for Git related failures."""
 
+
 class GitNotRepositoryError(GitBaseError):
     """Raised when the current working directory is not a git repository."""
 
+
 class GitQueryError(GitRunError):
     """Base class for read-only git query failures."""
 
+
 class GitCommandError(GitRunError):
     """
     Base class for state-changing git command failures.
 
     Use subclasses to provide stable error types for callers.
     """
+
     def __init__(self, message: str, *, cwd: str = ".") -> None:
         super().__init__(message)
         if cwd in locals():

src/pkgmgr/core/git/queries/get_config_value.py

@@ -16,6 +16,7 @@ def _is_missing_key_error(exc: GitRunError) -> bool:
     # 'git config --get' returns exit code 1 when the key is not set.
     return "exit code: 1" in msg
 
+
 def get_config_value(key: str, *, cwd: str = ".") -> Optional[str]:
     """
     Return a value from `git config --get <key>`, or None if not set.

src/pkgmgr/core/git/queries/get_remote_head_commit.py

@@ -30,4 +30,4 @@ def get_remote_head_commit(
         ) from exc
 
     # minimal parsing: first token is the hash
-    return (out.split()[0].strip() if out else "")
+    return out.split()[0].strip() if out else ""

src/pkgmgr/core/git/queries/get_remote_push_urls.py

@@ -4,6 +4,7 @@ from typing import Set
 
 from ..run import run
 
+
 def get_remote_push_urls(remote: str, cwd: str = ".") -> Set[str]:
     """
     Return all push URLs configured for a remote.

src/pkgmgr/core/git/run.py

@@ -44,9 +44,7 @@ def run(
         stderr = exc.stderr or ""
         if _is_not_repo_error(stderr):
             raise GitNotRepositoryError(
-                f"Not a git repository: {cwd!r}\n"
-                f"Command: {cmd_str}\n"
-                f"STDERR:\n{stderr}"
+                f"Not a git repository: {cwd!r}\nCommand: {cmd_str}\nSTDERR:\n{stderr}"
             ) from exc
 
         raise GitRunError(

src/pkgmgr/core/repository/dir.py

@@ -34,7 +34,15 @@ def get_repo_dir(repositories_base_dir: str, repo: Dict[str, Any]) -> str:
     account = repo.get("account")
     repository = repo.get("repository")
 
-    missing = [k for k, v in [("provider", provider), ("account", account), ("repository", repository)] if not v]
+    missing = [
+        k
+        for k, v in [
+            ("provider", provider),
+            ("account", account),
+            ("repository", repository),
+        ]
+        if not v
+    ]
     if missing:
         print(
             "Error: repository entry is missing required keys.\n"

src/pkgmgr/core/repository/identifier.py

@@ -9,4 +9,4 @@ def get_repo_identifier(repo, all_repos):
     if count == 1:
         return repo_name
     else:
-        return f'{repo.get("provider")}/{repo.get("account")}/{repo.get("repository")}'
+        return f"{repo.get('provider')}/{repo.get('account')}/{repo.get('repository')}"

src/pkgmgr/core/repository/paths.py

@@ -109,7 +109,9 @@ def resolve_repo_paths(repo_dir: str) -> RepoPaths:
         ]
     )
     if rpm_spec is None:
-        rpm_spec = _find_first_spec_in_dir(os.path.join(repo_dir, "packaging", "fedora"))
+        rpm_spec = _find_first_spec_in_dir(
+            os.path.join(repo_dir, "packaging", "fedora")
+        )
     if rpm_spec is None:
         rpm_spec = _find_first_spec_in_dir(repo_dir)
 

src/pkgmgr/core/repository/resolve.py

@@ -1,4 +1,3 @@
-
 def resolve_repos(identifiers: [], all_repos: []):
     """
     Given a list of identifier strings, return a list of repository configs.
@@ -11,7 +10,9 @@ def resolve_repos(identifiers:[], all_repos:[]):
     for ident in identifiers:
         matches = []
         for repo in all_repos:
-            full_id = f'{repo.get("provider")}/{repo.get("account")}/{repo.get("repository")}'
+            full_id = (
+                f"{repo.get('provider')}/{repo.get('account')}/{repo.get('repository')}"
+            )
             if ident == full_id:
                 matches.append(repo)
             elif ident == repo.get("alias"):

src/pkgmgr/core/repository/verify.py

@@ -66,18 +66,26 @@ def verify_repository(repo, repo_dir, mode="local", no_verification=False):
     if expected_commit:
         if not commit_hash:
             commit_check_passed = False
-            error_details.append(f"Expected commit: {expected_commit}, but could not determine current commit.")
+            error_details.append(
+                f"Expected commit: {expected_commit}, but could not determine current commit."
+            )
         elif commit_hash != expected_commit:
             commit_check_passed = False
-            error_details.append(f"Expected commit: {expected_commit}, found: {commit_hash}")
+            error_details.append(
+                f"Expected commit: {expected_commit}, found: {commit_hash}"
+            )
 
     if expected_gpg_keys:
         if not signing_key:
             gpg_check_passed = False
-            error_details.append(f"Expected one of GPG keys: {expected_gpg_keys}, but no signing key was found.")
+            error_details.append(
+                f"Expected one of GPG keys: {expected_gpg_keys}, but no signing key was found."
+            )
         elif signing_key not in expected_gpg_keys:
             gpg_check_passed = False
-            error_details.append(f"Expected one of GPG keys: {expected_gpg_keys}, found: {signing_key}")
+            error_details.append(
+                f"Expected one of GPG keys: {expected_gpg_keys}, found: {signing_key}"
+            )
 
     if expected_commit and expected_gpg_keys:
         verified_ok = commit_check_passed and gpg_check_passed

src/pkgmgr/core/version/installed.py

@@ -13,6 +13,7 @@ class InstalledVersion:
     """
     Represents a resolved installed version and the matched name.
     """
+
     name: str
     version: str
 

src/pkgmgr/core/version/semver.py

@@ -43,10 +43,14 @@ class SemVer:
             minor = int(parts[1])
             patch = int(parts[2])
         except ValueError as exc:
-            raise ValueError(f"Semantic version components must be integers: {value!r}") from exc
+            raise ValueError(
+                f"Semantic version components must be integers: {value!r}"
+            ) from exc
 
         if major < 0 or minor < 0 or patch < 0:
-            raise ValueError(f"Semantic version components must be non-negative: {value!r}")
+            raise ValueError(
+                f"Semantic version components must be non-negative: {value!r}"
+            )
 
         return cls(major=major, minor=minor, patch=patch)
 

tests/e2e/test_branch_commands.py

@@ -37,9 +37,7 @@ class TestIntegrationBranchCommands(unittest.TestCase):
         `pkgmgr branch open feature/test --base develop` must forward
         the name and base branch to open_branch() with cwd=".".
         """
-        self._run_pkgmgr(
-            ["branch", "open", "feature/test", "--base", "develop"]
-        )
+        self._run_pkgmgr(["branch", "open", "feature/test", "--base", "develop"])
 
         mock_open_branch.assert_called_once()
         _, kwargs = mock_open_branch.call_args
@@ -74,9 +72,7 @@ class TestIntegrationBranchCommands(unittest.TestCase):
         `pkgmgr branch close feature/test --base develop` must forward
         the name and base branch to close_branch() with cwd=".".
         """
-        self._run_pkgmgr(
-            ["branch", "close", "feature/test", "--base", "develop"]
-        )
+        self._run_pkgmgr(["branch", "close", "feature/test", "--base", "develop"])
 
         mock_close_branch.assert_called_once()
         _, kwargs = mock_close_branch.call_args

tests/e2e/test_install_makefile_three_times.py

@@ -3,15 +3,14 @@ import tempfile
 import unittest
 from pathlib import Path
 
+
 class TestMakefileThreeTimes(unittest.TestCase):
     def test_make_install_three_times(self):
         with tempfile.TemporaryDirectory(prefix="makefile-3x-") as tmp:
             repo = Path(tmp)
 
             # Minimal Makefile with install target
-            (repo / "Makefile").write_text(
-                "install:\n\t@echo install >> install.log\n"
-            )
+            (repo / "Makefile").write_text("install:\n\t@echo install >> install.log\n")
 
             for i in range(1, 4):
                 print(f"\n=== RUN {i}/3 ===")

tests/e2e/test_install_pkgmgr_shallow.py

@@ -114,7 +114,9 @@ class TestIntegrationInstalPKGMGRShallow(unittest.TestCase):
             # Optional XDG override for a fully isolated environment
             os.environ.setdefault("XDG_CONFIG_HOME", os.path.join(temp_home, ".config"))
             os.environ.setdefault("XDG_CACHE_HOME", os.path.join(temp_home, ".cache"))
-            os.environ.setdefault("XDG_DATA_HOME", os.path.join(temp_home, ".local", "share"))
+            os.environ.setdefault(
+                "XDG_DATA_HOME", os.path.join(temp_home, ".local", "share")
+            )
 
             # 🔧 IMPORTANT FIX: allow Git to access /src safely
             configure_git_safe_directory()

tests/e2e/test_install_pkgmgr_three_times_nix.py

@@ -14,17 +14,16 @@ class TestPkgmgrInstallThreeTimesNix(unittest.TestCase):
             env["HOME"] = tmp
 
             # Ensure nix is found
-            env["PATH"] = "/nix/var/nix/profiles/default/bin:" + os.environ.get("PATH", "")
+            env["PATH"] = "/nix/var/nix/profiles/default/bin:" + os.environ.get(
+                "PATH", ""
+            )
 
             # IMPORTANT:
             # nix run uses git+file:///src internally -> Git will reject /src if it's not a safe.directory.
             # Our test sets HOME to a temp dir, so we must provide a temp global gitconfig.
             gitconfig = tmp_path / ".gitconfig"
             gitconfig.write_text(
-                "[safe]\n"
-                "\tdirectory = /src\n"
-                "\tdirectory = /src/.git\n"
-                "\tdirectory = *\n"
+                "[safe]\n\tdirectory = /src\n\tdirectory = /src/.git\n\tdirectory = *\n"
             )
             env["GIT_CONFIG_GLOBAL"] = str(gitconfig)
 

tests/e2e/test_install_pkgmgr_three_times_venv.py

@@ -16,10 +16,8 @@ class TestPkgmgrInstallThreeTimesVenv(unittest.TestCase):
             env["HOME"] = tmp
 
             # pkgmgr kommt aus dem Projekt-venv
-            env["PATH"] = (
-                f"{Path.cwd() / '.venv' / 'bin'}:"
-                f"{bin_dir}:"
-                + os.environ.get("PATH", "")
+            env["PATH"] = f"{Path.cwd() / '.venv' / 'bin'}:{bin_dir}:" + os.environ.get(
+                "PATH", ""
             )
 
             # nix explizit deaktivieren → Python/Venv-Pfad

tests/e2e/test_make_commands.py

@@ -69,9 +69,7 @@ class TestIntegrationMakeCommands(unittest.TestCase):
         - '--preview' ensures that no destructive make commands are
           actually executed inside the container.
         """
-        self._run_pkgmgr_make(
-            ["make", "install", "--preview", "pkgmgr"]
-        )
+        self._run_pkgmgr_make(["make", "install", "--preview", "pkgmgr"])
 
 
 if __name__ == "__main__":

tests/e2e/test_nix_build_pkgmgr.py

@@ -24,9 +24,7 @@ import unittest
 
 
 # Resolve project root (the repo where flake.nix lives, e.g. /src)
-PROJECT_ROOT = os.path.abspath(
-    os.path.join(os.path.dirname(__file__), "..", "..")
-)
+PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
 
 
 def _run_cmd(cmd: list[str]) -> subprocess.CompletedProcess:
@@ -69,12 +67,17 @@ class TestNixBuildPkgmgrAllDistros(unittest.TestCase):
             _run_cmd(["id"])
 
             # --- nix build .#pkgmgr -L ---
-            proc = _run_cmd([
+            proc = _run_cmd(
+                [
                     "nix",
-                "--option", "sandbox", "false",
-                "build", ".#pkgmgr",
+                    "--option",
+                    "sandbox",
+                    "false",
+                    "build",
+                    ".#pkgmgr",
                     "-L",
-            ])
+                ]
+            )
 
             if proc.returncode != 0:
                 raise AssertionError(

tests/e2e/test_release_commands.py

@@ -164,5 +164,6 @@ class TestIntegrationReleaseCommand(unittest.TestCase):
         self.assertIn("usage:", output)
         self.assertIn("pkgmgr release", output)
 
+
 if __name__ == "__main__":
     unittest.main()

tests/e2e/test_tools_help.py

@@ -17,6 +17,7 @@ import sys
 import unittest
 from typing import List
 
+
 def _run_main(argv: List[str]) -> None:
     """
     Helper to run main.py with the given argv.

tests/e2e/test_update_all_no_system.py

@@ -30,10 +30,7 @@ from test_install_pkgmgr_shallow import (
 def _make_temp_gitconfig_with_safe_dirs(home: Path) -> Path:
     gitconfig = home / ".gitconfig"
     gitconfig.write_text(
-        "[safe]\n"
-        "\tdirectory = /src\n"
-        "\tdirectory = /src/.git\n"
-        "\tdirectory = *\n"
+        "[safe]\n\tdirectory = /src\n\tdirectory = /src/.git\n\tdirectory = *\n"
     )
     return gitconfig