remove rcsparse testmodule; pointless test which tox tried to run

make 'black' ignore cvsclient.py; forced reformatting is unreadable

fix pytest arguments in tox.ini

tell 'black' to ignore rcsparse and cvs2gitdump sources

rcsparse.pyi: 'black' prefers empty line after imports

tell flake8 to ignore invalid escape sequences in regex

remove cvs2svndump; it fails linter checks and we don't use it

fix typo in variable name; found by flake8

also add .* to the default exclude list

fix reference to subprocess.TimeoutExpired; found by flake8

reformat test_loader.py to appease flake8

avoid use of undefined module vclib; found by flake8

wrap overlong lines in rlog.py to appease flake8

reformat cvsclient.py to appease flake8

add a very simple .pyi for rcsparse to satisfy mypy

add an assert to avoid a None type error from mypy

add a comment which documents RCS/CVS branch numbers

tell flake8 to ignore the 'build' directory

document CVS path encoding issues

make a line of code more readable

fix incomplete docstring of swh_hash_data_per_cvs_changeset

merge nested functions which yield into single functions

simplify use of os.makedirs(); from vlorentz

convert readme file from .md to .rst

avoid pointless conversion to bytes() and use (x,) tuple idiom

acknowledge code derived from ViewVC in our README file

Remove an unused import.

commit reformatting of rlog.py done by pre-commit hook

fix 'ssh' protocol support

the pre-commit hook complained about an unused rcsfile variable

exclude third-party sources via mypy.ini, not pre-commit conf

fix format string error found by pre-commit hook

exclude third-party sources from flake8 checks

commit reformatting performed by pre-commit hook on setup.py

urllib doesn't have stubs for mypy

fix myphy errors on swh/loader/__init__.py

exclude upstream python code from pre-commit checks

wrap overlong lines

committing reformatting which was performed by pre-commit hooks

update README

remove unused keyword parameter to fix loading of the cvs loader

switch log level of an informative progress message from debug to info

implement support for import via cvs pserver protocol

simply assign to empty lists in order to clear per-changeset data

remove unused imports

add test case doing an incremental visit

avoid double-parsing of rcsfiles while processing a changeset

copy over the pre_cleanup() handler from the SVN loader

cvs2gitdump: avoid parsing rcs files inside expand_keyword()

remove unused CvsLoader class members and constructor arguments

replace global self.rcs variable with use of local variables

drop support for using previous snapshots as base for new ones

change logging level of per-revision info from DEBUG to INFO