Rename logger globals from log to _logger

These globals were nonpublic, because even though they were named
without leading underscores, they all appeared in modules in which
__all__ was defined and did not list them. (They remain nonpublic.)

This renaming is to avoid confusion between those log attributes
ang logging features of Git itself ("git log", "git reflog"), and
more importantly, with the related git.refs.log module, referred to
by the log attribute of the git.refs module, and the log attribute
of the git module (git/__init__.py has a * import from git.refs).

git/cmd.py

@@ -81,8 +81,8 @@
     "strip_newline_in_stdout",
 }
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 __all__ = ("Git",)
 
@@ -146,7 +146,7 @@ def pump_stream(
                         handler(line)
 
         except Exception as ex:
-            log.error(f"Pumping {name!r} of cmd({remove_password_if_present(cmdline)}) failed due to: {ex!r}")
+            _logger.error(f"Pumping {name!r} of cmd({remove_password_if_present(cmdline)}) failed due to: {ex!r}")
             if "I/O operation on closed file" not in str(ex):
                 # Only reraise if the error was not due to the stream closing
                 raise CommandError([f"<{name}-pump>"] + remove_password_if_present(cmdline), ex) from ex
@@ -600,7 +600,7 @@ def _terminate(self) -> None:
                     self.status = self._status_code_if_terminate or proc.poll()
                     return
             except OSError as ex:
-                log.info("Ignored error after process had died: %r", ex)
+                _logger.info("Ignored error after process had died: %r", ex)
 
             # It can be that nothing really exists anymore...
             if os is None or getattr(os, "kill", None) is None:
@@ -613,7 +613,7 @@ def _terminate(self) -> None:
 
                 self.status = self._status_code_if_terminate or status
             except OSError as ex:
-                log.info("Ignored error after process had died: %r", ex)
+                _logger.info("Ignored error after process had died: %r", ex)
             # END exception handling
 
         def __del__(self) -> None:
@@ -654,7 +654,7 @@ def read_all_from_possibly_closed_stream(stream: Union[IO[bytes], None]) -> byte
 
             if status != 0:
                 errstr = read_all_from_possibly_closed_stream(p_stderr)
-                log.debug("AutoInterrupt wait stderr: %r" % (errstr,))
+                _logger.debug("AutoInterrupt wait stderr: %r" % (errstr,))
                 raise GitCommandError(remove_password_if_present(self.args), status, errstr)
             return status
 
@@ -1018,7 +1018,7 @@ def execute(
         # Remove password for the command if present.
         redacted_command = remove_password_if_present(command)
         if self.GIT_PYTHON_TRACE and (self.GIT_PYTHON_TRACE != "full" or as_process):
-            log.info(" ".join(redacted_command))
+            _logger.info(" ".join(redacted_command))
 
         # Allow the user to have the command executed in their working dir.
         try:
@@ -1055,7 +1055,7 @@ def execute(
         stdout_sink = PIPE if with_stdout else getattr(subprocess, "DEVNULL", None) or open(os.devnull, "wb")
         if shell is None:
             shell = self.USE_SHELL
-        log.debug(
+        _logger.debug(
             "Popen(%s, cwd=%s, stdin=%s, shell=%s, universal_newlines=%s)",
             redacted_command,
             cwd,
@@ -1167,17 +1167,17 @@ def as_text(stdout_value: Union[bytes, str]) -> str:
             # END as_text
 
             if stderr_value:
-                log.info(
+                _logger.info(
                     "%s -> %d; stdout: '%s'; stderr: '%s'",
                     cmdstr,
                     status,
                     as_text(stdout_value),
                     safe_decode(stderr_value),
                 )
             elif stdout_value:
-                log.info("%s -> %d; stdout: '%s'", cmdstr, status, as_text(stdout_value))
+                _logger.info("%s -> %d; stdout: '%s'", cmdstr, status, as_text(stdout_value))
             else:
-                log.info("%s -> %d", cmdstr, status)
+                _logger.info("%s -> %d", cmdstr, status)
         # END handle debug printing
 
         if with_exceptions and status != 0:

git/config.py

@@ -61,8 +61,8 @@
 __all__ = ("GitConfigParser", "SectionConstraint")
 
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 
 CONFIG_LEVELS: ConfigLevels_Tup = ("system", "user", "global", "repository")
@@ -412,7 +412,7 @@ def release(self) -> None:
         try:
             self.write()
         except IOError:
-            log.error("Exception during destruction of GitConfigParser", exc_info=True)
+            _logger.error("Exception during destruction of GitConfigParser", exc_info=True)
         except ReferenceError:
             # This happens in Python 3... and usually means that some state cannot be
             # written as the sections dict cannot be iterated. This usually happens when
@@ -712,7 +712,7 @@ def write(self) -> None:
         # END assert multiple files
 
         if self._has_includes():
-            log.debug(
+            _logger.debug(
                 "Skipping write-back of configuration file as include files were merged in."
                 + "Set merge_includes=False to prevent this."
             )

git/objects/commit.py

@@ -52,8 +52,8 @@
 
 # ------------------------------------------------------------------------
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 __all__ = ("Commit",)
 
@@ -767,7 +767,7 @@ def _deserialize(self, stream: BytesIO) -> "Commit":
                 self.author_tz_offset,
             ) = parse_actor_and_date(author_line.decode(self.encoding, "replace"))
         except UnicodeDecodeError:
-            log.error(
+            _logger.error(
                 "Failed to decode author line '%s' using encoding %s",
                 author_line,
                 self.encoding,
@@ -781,7 +781,7 @@ def _deserialize(self, stream: BytesIO) -> "Commit":
                 self.committer_tz_offset,
             ) = parse_actor_and_date(committer_line.decode(self.encoding, "replace"))
         except UnicodeDecodeError:
-            log.error(
+            _logger.error(
                 "Failed to decode committer line '%s' using encoding %s",
                 committer_line,
                 self.encoding,
@@ -795,7 +795,7 @@ def _deserialize(self, stream: BytesIO) -> "Commit":
         try:
             self.message = self.message.decode(self.encoding, "replace")
         except UnicodeDecodeError:
-            log.error(
+            _logger.error(
                 "Failed to decode message '%s' using encoding %s",
                 self.message,
                 self.encoding,

git/objects/submodule/base.py

@@ -56,8 +56,8 @@
 __all__ = ["Submodule", "UpdateProgress"]
 
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 
 class UpdateProgress(RemoteProgress):
@@ -731,7 +731,7 @@ def update(
                         )
                         mrepo.head.reference.set_tracking_branch(remote_branch)
                     except (IndexError, InvalidGitRepositoryError):
-                        log.warning("Failed to checkout tracking branch %s", self.branch_path)
+                        _logger.warning("Failed to checkout tracking branch %s", self.branch_path)
                     # END handle tracking branch
 
                     # NOTE: Have to write the repo config file as well, otherwise the
@@ -761,14 +761,14 @@ def update(
                         binsha = rcommit.binsha
                         hexsha = rcommit.hexsha
                     else:
-                        log.error(
+                        _logger.error(
                             "%s a tracking branch was not set for local branch '%s'",
                             msg_base,
                             mrepo.head.reference,
                         )
                     # END handle remote ref
                 else:
-                    log.error("%s there was no local tracking branch", msg_base)
+                    _logger.error("%s there was no local tracking branch", msg_base)
                 # END handle detached head
             # END handle to_latest_revision option
 
@@ -786,15 +786,15 @@ def update(
                         if force:
                             msg = "Will force checkout or reset on local branch that is possibly in the future of"
                             msg += " the commit it will be checked out to, effectively 'forgetting' new commits"
-                            log.debug(msg)
+                            _logger.debug(msg)
                         else:
                             msg = "Skipping %s on branch '%s' of submodule repo '%s' as it contains un-pushed commits"
                             msg %= (
                                 is_detached and "checkout" or "reset",
                                 mrepo.head,
                                 mrepo,
                             )
-                            log.info(msg)
+                            _logger.info(msg)
                             may_reset = False
                         # END handle force
                     # END handle if we are in the future
@@ -834,7 +834,7 @@ def update(
         except Exception as err:
             if not keep_going:
                 raise
-            log.error(str(err))
+            _logger.error(str(err))
         # END handle keep_going
 
         # HANDLE RECURSION

git/objects/submodule/root.py

@@ -22,8 +22,8 @@
 
 __all__ = ["RootModule", "RootUpdateProgress"]
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 
 class RootUpdateProgress(UpdateProgress):
@@ -321,7 +321,7 @@ def update(
                                     # this way, it will be checked out in the next step.
                                     # This will change the submodule relative to us, so
                                     # the user will be able to commit the change easily.
-                                    log.warning(
+                                    _logger.warning(
                                         "Current sha %s was not contained in the tracking\
              branch at the new remote, setting it the the remote's tracking branch",
                                         sm.hexsha,
@@ -393,7 +393,7 @@ def update(
         except Exception as err:
             if not keep_going:
                 raise
-            log.error(str(err))
+            _logger.error(str(err))
         # END handle keep_going
 
         # FINALLY UPDATE ALL ACTUAL SUBMODULES

git/remote.py

@@ -65,8 +65,8 @@
 # -------------------------------------------------------------
 
 
-log = logging.getLogger(__name__)
-log.addHandler(logging.NullHandler())
+_logger = logging.getLogger(__name__)
+_logger.addHandler(logging.NullHandler())
 
 
 __all__ = ("RemoteProgress", "PushInfo", "FetchInfo", "Remote")
@@ -857,7 +857,7 @@ def _get_fetch_info_from_stderr(
         stderr_text = progress.error_lines and "\n".join(progress.error_lines) or ""
         proc.wait(stderr=stderr_text)
         if stderr_text:
-            log.warning("Error lines received while fetching: %s", stderr_text)
+            _logger.warning("Error lines received while fetching: %s", stderr_text)
 
         for line in progress.other_lines:
             line = force_text(line)
@@ -878,9 +878,9 @@ def _get_fetch_info_from_stderr(
             msg += "length of progress lines %i should be equal to lines in FETCH_HEAD file %i\n"
             msg += "Will ignore extra progress lines or fetch head lines."
             msg %= (l_fil, l_fhi)
-            log.debug(msg)
-            log.debug(b"info lines: " + str(fetch_info_lines).encode("UTF-8"))
-            log.debug(b"head info: " + str(fetch_head_info).encode("UTF-8"))
+            _logger.debug(msg)
+            _logger.debug(b"info lines: " + str(fetch_info_lines).encode("UTF-8"))
+            _logger.debug(b"head info: " + str(fetch_head_info).encode("UTF-8"))
             if l_fil < l_fhi:
                 fetch_head_info = fetch_head_info[:l_fil]
             else:
@@ -892,8 +892,8 @@ def _get_fetch_info_from_stderr(
             try:
                 output.append(FetchInfo._from_line(self.repo, err_line, fetch_line))
             except ValueError as exc:
-                log.debug("Caught error while parsing line: %s", exc)
-                log.warning("Git informed while fetching: %s", err_line.strip())
+                _logger.debug("Caught error while parsing line: %s", exc)
+                _logger.warning("Git informed while fetching: %s", err_line.strip())
         return output
 
     def _get_push_info(
@@ -935,7 +935,7 @@ def stdout_handler(line: str) -> None:
             if not output:
                 raise
             elif stderr_text:
-                log.warning("Error lines received while fetching: %s", stderr_text)
+                _logger.warning("Error lines received while fetching: %s", stderr_text)
                 output.error = e
 
         return output

git/repo/base.py

@@ -89,7 +89,7 @@
 
 # -----------------------------------------------------------
 
-log = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
 
 __all__ = ("Repo",)
 
@@ -772,7 +772,7 @@ def is_valid_object(self, sha: str, object_type: Union[str, None] = None) -> boo
                 if object_info.type == object_type.encode():
                     return True
                 else:
-                    log.debug(
+                    _logger.debug(
                         "Commit hash points to an object of type '%s'. Requested were objects of type '%s'",
                         object_info.type.decode(),
                         object_type,
@@ -781,7 +781,7 @@ def is_valid_object(self, sha: str, object_type: Union[str, None] = None) -> boo
             else:
                 return True
         except BadObject:
-            log.debug("Commit hash is invalid.")
+            _logger.debug("Commit hash is invalid.")
             return False
 
     def _get_daemon_export(self) -> bool:
@@ -1298,7 +1298,7 @@ def _clone(
             cmdline = getattr(proc, "args", "")
             cmdline = remove_password_if_present(cmdline)
 
-            log.debug("Cmd(%s)'s unused stdout: %s", cmdline, stdout)
+            _logger.debug("Cmd(%s)'s unused stdout: %s", cmdline, stdout)
             finalize_process(proc, stderr=stderr)
 
         # Our git command could have a different working dir than our actual

git/util.py

@@ -104,7 +104,7 @@
     "HIDE_WINDOWS_KNOWN_ERRORS",
 ]
 
-log = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
 
 
 def _read_win_env_flag(name: str, default: bool) -> bool:
@@ -124,7 +124,7 @@ def _read_win_env_flag(name: str, default: bool) -> bool:
     except KeyError:
         return default
 
-    log.warning(
+    _logger.warning(
         "The %s environment variable is deprecated. Its effect has never been documented and changes without warning.",
         name,
     )
@@ -135,7 +135,7 @@ def _read_win_env_flag(name: str, default: bool) -> bool:
         return False
     if adjusted_value in {"1", "true", "yes"}:
         return True
-    log.warning("%s has unrecognized value %r, treating as %r.", name, value, default)
+    _logger.warning("%s has unrecognized value %r, treating as %r.", name, value, default)
     return default
 
 
@@ -466,7 +466,7 @@ def is_cygwin_git(git_executable: Union[None, PathLike]) -> bool:
             # retcode = process.poll()
             is_cygwin = "CYGWIN" in uname_out
         except Exception as ex:
-            log.debug("Failed checking if running in CYGWIN due to: %r", ex)
+            _logger.debug("Failed checking if running in CYGWIN due to: %r", ex)
         _is_cygwin_cache[git_executable] = is_cygwin
 
     return is_cygwin