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[bin] Add colour support to stowage

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This commit is contained in:
Andrew Williams
2026-01-08 21:59:23 +00:00
parent 8ee9b23b56
commit cae646a5f1
1 changed files with 104 additions and 16 deletions
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120
bin/.local/bin/stowage
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@@ -34,17 +34,98 @@ import shutil
import sys
from collections.abc import Callable
from pathlib import Path
from typing import List
from typing import IO, List
logger = logging.getLogger(__name__)
class Colours(object):
"""ANSI color codes for terminal output"""
# Reset
RESET = "\033[0m"
# Regular colors
BLACK = "\033[30m"
RED = "\033[31m"
GREEN = "\033[32m"
YELLOW = "\033[33m"
BLUE = "\033[34m"
MAGENTA = "\033[35m"
CYAN = "\033[36m"
WHITE = "\033[37m"
# Copied from _colorize in Python stdlib
def can_colorize(*, file: IO[str] | IO[bytes] | None = None) -> bool:
def _safe_getenv(k: str, fallback: str | None = None) -> str | None:
try:
return os.environ.get(k, fallback)
except Exception:
return fallback
if file is None:
file = sys.stdout
if not sys.flags.ignore_environment:
if _safe_getenv("PYTHON_COLORS") == "0":
return False
if _safe_getenv("PYTHON_COLORS") == "1":
return True
if _safe_getenv("NO_COLOR"):
return False
if _safe_getenv("FORCE_COLOR"):
return True
if _safe_getenv("TERM") == "dumb":
return False
if not hasattr(file, "fileno"):
return False
if sys.platform == "win32":
try:
import nt
if not nt._supports_virtual_terminal():
return False
except (ImportError, AttributeError):
return False
try:
return os.isatty(file.fileno())
except OSError:
return hasattr(file, "isatty") and file.isatty()
@staticmethod
def by_name(name):
if not Colours.can_colorize():
return ""
return getattr(Colours, name.upper(), "")
# Colours to use for each action
ACTION_COLOURS = {
"LINK": "GREEN",
"UNLINK": "RED",
"DIR": "GREEN",
"RMDIR": "RED",
"SKIP": "YELLOW",
}
def print_action(action: str, msg: str) -> None:
"""Print an action message."""
colour = ""
if action in ACTION_COLOURS:
colour = Colours.by_name(ACTION_COLOURS[action])
print(f"{colour}{action}{Colours.by_name('RESET')} {msg}")
def add_file_to_package(
file_path: Path, package: str, args: argparse.Namespace
file_path: Path, package_name: str, args: argparse.Namespace
) -> bool:
"""Add a file to a package by moving it and creating a symlink."""
target = args.target.resolve()
package = Path(args.repository, package).resolve()
package = Path(args.repository, package_name).resolve()
# Check the file is under the target directory
if not file_path.is_relative_to(target):
@@ -62,11 +143,11 @@ def add_file_to_package(
return False
if not dest_dir.exists():
logger.info("DIR %s", dest_dir)
print_action("DIR", str(dest_dir))
if not args.dry_run:
dest_dir.mkdir(parents=True, mode=0o755, exist_ok=True)
logger.info("SWAP %s <-> %s", dest_path, file_path)
print_action("SWAP", f"{dest_path} <-> {file_path}")
if not args.dry_run:
shutil.move(str(file_path), str(dest_path))
try:
@@ -106,13 +187,13 @@ def install_package(
if rest != Path("."):
# If a non-directory exists with the same name and clobber is enabled, get rid of it.
if dest.exists() and not dest.is_dir() and args.clobber:
logger.info("UNLINK %s", dest)
print_action("UNLINK", dest)
if not args.dry_run:
dest.unlink()
# Make directory
if not dest.exists():
logger.info("DIR %s", dest)
print_action("DIR", dest)
if not args.dry_run:
dest.mkdir(parents=True, mode=0o755, exist_ok=True)
@@ -123,17 +204,17 @@ def install_package(
# Skip if the file exists and we're not clobbering
if dest_path.exists() and not args.clobber:
logger.info("SKIP %s", dest_path)
print_action("SKIP", dest_path)
continue
# Does the file already exist?
if dest_path.is_file() or dest_path.is_symlink():
logger.info("UNLINK %s", dest_path)
print_action("UNLINK", dest_path)
if not args.dry_run:
dest_path.unlink()
# Link the file
logger.info("LINK %s -> %s", src_path, dest_path)
print_action("LINK", f"%{src_path} -> %{dest_path}")
if not args.dry_run:
try:
dest_path.symlink_to(src_path)
@@ -176,22 +257,22 @@ def uninstall_package(
src_path = (root_path / filename).resolve()
try:
if dest_path.resolve() == src_path:
logger.info("UNLINK %s", dest_path)
print_action("UNLINK", dest_path)
if not args.dry_run:
dest_path.unlink()
else:
logger.info("SKIP %s (points elsewhere)", dest_path)
print_action("SKIP", f"{dest_path} (points elsewhere)")
except (OSError, RuntimeError) as e:
logger.warning("error checking symlink %s: %s", dest_path, e)
else:
logger.info("SKIP %s (not a symlink)", dest_path)
print_action("SKIP", f"{dest_path} (not a symlink)")
# Delete the directories if empty.
for dir_path in sorted(dirs, key=lambda p: len(str(p)), reverse=True):
if not dir_path.exists():
continue
try:
logger.info("RMDIR %s", dir_path)
print_action("RMDIR", str(dir_path))
if not args.dry_run:
dir_path.rmdir()
except OSError:
@@ -253,13 +334,17 @@ def cleanup_package(package: str, args: argparse.Namespace) -> None:
rest = root_path.relative_to(package_dir)
dest = args.target / rest
# If the folder doesn't exist in the target, skip it
if not dest.exists():
continue
# Iterate the files in the target folder
for file in os.listdir(dest):
src_path = dest / file
if is_package_file(
src_path, package, args.repository
) and is_broken_symlink(src_path):
logger.info("UNLINK %s", src_path)
print_action("UNLINK", src_path)
if not args.dry_run:
src_path.unlink()
@@ -376,7 +461,10 @@ def main() -> None:
if len(packages):
print(f"Packages in repository: {repo_path}")
for package in packages:
print(f"- {package}")
print(
f"{Colours.by_name('GREEN')}-{Colours.by_name('RESET')} {package}"
)
else:
logger.info("no packages found in repository")