From: "Mike Frysinger" <vapier@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/pax-utils:master commit in: /
Date: Wed, 28 Sep 2022 07:42:55 +0000 (UTC) [thread overview]
Message-ID: <1664350937.b07b25dcc8ad0e518d801bc23d01fb59cc6de442.vapier@gentoo> (raw)
commit: b07b25dcc8ad0e518d801bc23d01fb59cc6de442
Author: Mike Frysinger <vapier <AT> chromium <DOT> org>
AuthorDate: Wed Sep 28 06:03:01 2022 +0000
Commit: Mike Frysinger <vapier <AT> gentoo <DOT> org>
CommitDate: Wed Sep 28 07:42:17 2022 +0000
URL: https://gitweb.gentoo.org/proj/pax-utils.git/commit/?id=b07b25dc
lddtree: add typing info to more places
Signed-off-by: Mike Frysinger <vapier <AT> gentoo.org>
lddtree.py | 87 +++++++++++++++++++++++++++++++++++++++++++-------------------
1 file changed, 61 insertions(+), 26 deletions(-)
diff --git a/lddtree.py b/lddtree.py
index ecb353d..6939bb6 100755
--- a/lddtree.py
+++ b/lddtree.py
@@ -48,6 +48,7 @@ import mmap
import os
import shutil
import sys
+from typing import Any, Iterable, Optional, Union
assert sys.version_info >= (3, 6), f'Python 3.6+ required, but found {sys.version}'
@@ -60,31 +61,31 @@ from elftools.common import exceptions
from elftools.elf.elffile import ELFFile
-def warn(msg, prefix='warning'):
+def warn(msg: Any, prefix: Optional[str] = "warning") -> None:
"""Write |msg| to stderr with a |prefix| before it"""
print('%s: %s: %s' % (os.path.basename(sys.argv[0]), prefix, msg), file=sys.stderr)
-def err(msg, status=1):
+def err(msg: Any, status: Optional[int] = 1) -> None:
"""Write |msg| to stderr and exit with |status|"""
warn(msg, prefix='error')
sys.exit(status)
-def dbg(debug, *args, **kwargs):
+def dbg(debug: bool, *args, **kwargs) -> None:
"""Pass |args| and |kwargs| to print() when |debug| is True"""
if debug:
print(*args, **kwargs)
-def bstr(buf):
+def bstr(buf: Union[bytes, str]) -> str:
"""Decode the byte string into a string"""
if isinstance(buf, str):
return buf
return buf.decode('utf-8')
-def normpath(path):
+def normpath(path: str) -> str:
"""Normalize a path
Python's os.path.normpath() doesn't handle some cases:
@@ -96,7 +97,7 @@ def normpath(path):
@functools.lru_cache(maxsize=None)
-def readlink(path, root, prefixed=False):
+def readlink(path: str, root: str, prefixed: Optional[bool] = False) -> str:
"""Like os.readlink(), but relative to a |root|
This does not currently handle the pathological case:
@@ -124,14 +125,14 @@ def readlink(path, root, prefixed=False):
return normpath((root + path) if prefixed else path)
-def dedupe(items):
+def dedupe(items: list[str]) -> list[str]:
"""Remove all duplicates from |items| (keeping order)"""
- seen = {}
+ seen: dict[str, str] = {}
return [seen.setdefault(x, x) for x in items if x not in seen]
@functools.lru_cache(maxsize=None)
-def interp_supports_argv0(interp) -> bool:
+def interp_supports_argv0(interp: str) -> bool:
"""See whether |interp| supports the --argv0 option.
Starting with glibc-2.33, the ldso supports --argv0 to override argv[0].
@@ -141,7 +142,12 @@ def interp_supports_argv0(interp) -> bool:
return mm.find(b'--argv0') >= 0
-def GenerateLdsoWrapper(root, path, interp, libpaths=()):
+def GenerateLdsoWrapper(
+ root: str,
+ path: str,
+ interp: str,
+ libpaths: Iterable[str] = (),
+) -> None:
"""Generate a shell script wrapper which uses local ldso to run the ELF
Since we cannot rely on the host glibc (or other libraries), we need to
@@ -190,7 +196,12 @@ exec \\
@functools.lru_cache(maxsize=None)
-def ParseLdPaths(str_ldpaths, root='', cwd=None, path=None):
+def ParseLdPaths(
+ str_ldpaths: str,
+ root: str = "",
+ cwd: Optional[str] = None,
+ path: str = "",
+) -> list[str]:
"""Parse the colon-delimited list of paths and apply ldso rules to each
Note the special handling as dictated by the ldso:
@@ -232,7 +243,12 @@ def ParseLdPaths(str_ldpaths, root='', cwd=None, path=None):
return dedupe(ldpaths)
-def ParseLdSoConf(ldso_conf, root='/', debug=False, _first=True):
+def ParseLdSoConf(
+ ldso_conf: str,
+ root: str = "/",
+ debug: bool = False,
+ _first: bool = True,
+) -> list[str]:
"""Load all the paths from a given ldso config file
This should handle comments, whitespace, and "include" statements.
@@ -283,7 +299,12 @@ def ParseLdSoConf(ldso_conf, root='/', debug=False, _first=True):
return paths
-def LoadLdpaths(root='/', cwd=None, prefix='', debug=False):
+def LoadLdpaths(
+ root: str = "/",
+ cwd: Optional[str] = None,
+ prefix: str = "",
+ debug: bool = False,
+) -> dict[str, list[str]]:
"""Load linker paths from common locations
This parses the ld.so.conf and LD_LIBRARY_PATH env var.
@@ -297,7 +318,7 @@ def LoadLdpaths(root='/', cwd=None, prefix='', debug=False):
Returns:
dict containing library paths to search
"""
- ldpaths = {
+ ldpaths: dict[str, list[str]] = {
'conf': [],
'env': [],
'interp': [],
@@ -321,7 +342,7 @@ def LoadLdpaths(root='/', cwd=None, prefix='', debug=False):
return ldpaths
-def CompatibleELFs(elf1, elf2):
+def CompatibleELFs(elf1: ELFFile, elf2: ELFFile) -> bool:
"""See if two ELFs are compatible
This compares the aspects of the ELF to see if they're compatible:
@@ -344,7 +365,13 @@ def CompatibleELFs(elf1, elf2):
elf1.header['e_machine'] == elf2.header['e_machine'])
-def FindLib(elf, lib, ldpaths, root='/', debug=False):
+def FindLib(
+ elf: ELFFile,
+ lib: str,
+ ldpaths: list[str],
+ root: str = "/",
+ debug: bool = False,
+) -> tuple[Optional[str], Optional[str]]:
"""Try to locate a |lib| that is compatible to |elf| in the given |ldpaths|
Args:
@@ -381,9 +408,17 @@ def FindLib(elf, lib, ldpaths, root='/', debug=False):
# We abuse the _all_libs state. We probably shouldn't, but we do currently.
# pylint: disable=dangerous-default-value
-def ParseELF(path, root='/', cwd=None, prefix='',
- ldpaths={'conf':[], 'env':[], 'interp':[]},
- display=None, debug=False, _first=True, _all_libs={}):
+def ParseELF(
+ path: str,
+ root: str = "/",
+ cwd: Optional[str] = None,
+ prefix: str = "",
+ ldpaths={"conf": [], "env": [], "interp": []},
+ display: Optional[str] = None,
+ debug: bool = False,
+ _first: bool = True,
+ _all_libs={},
+) -> dict[str, Any]:
"""Parse the ELF dependency tree of the specified file
Args:
@@ -522,7 +557,7 @@ def ParseELF(path, root='/', cwd=None, prefix='',
'path': fullpath,
'needed': [],
}
- if fullpath:
+ if realpath is not None:
try:
lret = ParseELF(realpath, root, cwd, prefix, ldpaths, display=fullpath,
debug=debug, _first=False, _all_libs=_all_libs)
@@ -541,7 +576,7 @@ class _NormalizePathAction(argparse.Action):
setattr(namespace, self.dest, normpath(values))
-def _ActionShow(options, elf):
+def _ActionShow(options: argparse.Namespace, elf: dict):
"""Show the dependency tree for this ELF"""
def _show(lib, depth):
chain_libs.append(lib)
@@ -568,7 +603,7 @@ def _ActionShow(options, elf):
shown_libs = set(elf['needed'])
new_libs = elf['needed'][:]
- chain_libs = []
+ chain_libs: list[str] = []
interp = elf['interp']
if interp:
lib = os.path.basename(interp)
@@ -590,9 +625,9 @@ def _ActionShow(options, elf):
_show(lib, 1)
-def _ActionCopy(options, elf):
+def _ActionCopy(options: argparse.Namespace, elf: dict):
"""Copy the ELF and its dependencies to a destination tree"""
- def _StripRoot(path):
+ def _StripRoot(path: str) -> str:
return path[len(options.root) - 1:]
def _copy(realsrc, src, striproot=True, wrapit=False, libpaths=(),
@@ -687,7 +722,7 @@ def _ActionCopy(options, elf):
outdir=options.bindir)
-def GetParser():
+def GetParser() -> argparse.ArgumentParser:
"""Get a CLI parser."""
parser = argparse.ArgumentParser(
description=__doc__,
@@ -758,7 +793,7 @@ def GetParser():
return parser
-def main(argv):
+def main(argv: list[str]) -> Optional[int]:
"""The main entry point!"""
parser = GetParser()
options = parser.parse_args(argv)
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