Source code for pydeps.cli

# -*- coding: utf-8 -*-
command line interface (cli) code.
# pylint: disable=line-too-long
from __future__ import print_function
import argparse
from .arguments import Arguments
import json
from .pycompat import configparser
import logging
import os
import sys
import subprocess
import textwrap
from . import __version__

[docs]def error(*args, **kwargs): # pragma: nocover """Print an error message and exit. """ kwargs['file'] = sys.stderr print("\n\tERROR:", *args, **kwargs) sys.exit(1)
#: the (will become) verbose function verbose = None def _not_verbose(*args, **kwargs): # pragma: nocover pass def _mkverbose(level): def _verbose(n, *args, **kwargs): if not isinstance(n, int): # we're only interested in small integers # this allows the simpler usage cli.verbose(msg) args = (n,) + args n = 1 if 0 < level <= n: print(*args, **kwargs) return _verbose def _find_current_package(): startdir = cwd = os.getcwd() while '' not in os.listdir(cwd) and cwd != os.path.dirname(cwd): cwd = os.path.dirname(cwd) if '' not in os.listdir(cwd): raise Exception("--find-package didn't find in current, or any parent, directory") os.chdir(cwd) package_name = subprocess.check_output("python --name", shell=True).decode('u8').strip() return package_name
[docs]def base_argparser(argv=()): """Initial parser that can set values for the rest of the parsing process. """ global verbose verbose = _not_verbose _p = argparse.ArgumentParser(add_help=False) _p.add_argument('--debug', action='store_true', help="turn on all the show and verbose options (mainly for debugging pydeps itself)") _p.add_argument('--config', help="specify config file", metavar="FILE") _p.add_argument('--no-config', help="disable processing of config files", action='store_true') _p.add_argument('--version', action='store_true', help='print pydeps version') _p.add_argument('-L', '--log', help=textwrap.dedent(''' set log-level to one of CRITICAL, ERROR, WARNING, INFO, DEBUG, NOTSET. ''')) _p.add_argument('--find-package', action='store_true', help="tries to automatically find the name of the current package.") _args, argv = _p.parse_known_args(argv) if _args.log: loglevels = "CRITICAL DEBUG ERROR FATAL INFO WARN" if _args.log not in loglevels: # pragma: nocover error('legal values for the -L parameter are:', loglevels) loglevel = getattr(logging, _args.log) else: loglevel = None logging.basicConfig( level=loglevel, format='%(filename)s:%(lineno)d: %(levelname)s: %(message)s' ) if _args.version: # pragma: nocover print("pydeps v" + __version__) sys.exit(0) return _p, _args, argv # return parsed and remaining args
[docs]def parse_args(argv=()): """Parse command line arguments, and return a dict. """ _p, _args, argv = base_argparser(argv) find_package = _args.find_package config_files = [] if not _args.no_config: # process config files # extra config file specified with --config <fname> has highest precedence if _args.config: config_files.append(_args.config) # .pydeps file specified in current directory is next local_pydeps = os.path.join(os.getcwd(), '.pydeps') if os.path.exists(local_pydeps): config_files.append(local_pydeps) # finally the .pydeps file in the the user's homedir home = os.environ['USERPROFILE' if sys.platform == 'win32' else 'HOME'] home_pydeps = os.path.join(home, '.pydeps') if os.path.exists(home_pydeps): config_files.append(home_pydeps) args = Arguments(config_files, debug=True, parents=[_p]) if not find_package: args.add('fname', kind="FNAME:input", help='filename') else: args.add('--fname', kind="FNAME:input", help='filename') args.add('-v', '--verbose', default=0, action='count', help="be more verbose (-vv, -vvv for more verbosity)") args.add('-o', default=None, kind="FNAME:output", dest='output', metavar="file", help="write output to 'file'") args.add('-T', default='svg', dest='format', help="output format (svg|png)") args.add('--display', kind="FNAME:exe", default=None, help="program to use to display the graph (png or svg file depending on the T parameter)", metavar="PROGRAM") args.add('--noshow', '--no-show', action='store_true', default=False, dest='no_show', help="don't call external program to display graph") args.add('--show-deps', action='store_true', help="show output of dependency analysis") args.add('--show-raw-deps', action='store_true', help="show output of dependency analysis before removing skips") args.add('--show-dot', action='store_true', help="show output of dot conversion") args.add('--nodot', '--no-dot', action='store_true', help="skip dot conversion") args.add('--no-output', action='store_true', help="don't create .svg/.png file, implies --no-show (-t/-o will be ignored)") args.add('--show-cycles', action='store_true', help="show only import cycles") args.add('--debug-mf', default=0, type=int, metavar="INT", help="set the ModuleFinder.debug flag to this value") args.add('--noise-level', default=200, type=int, metavar="INT", help="exclude sources or sinks with degree greater than noise-level") args.add('--max-bacon', default=2, type=int, metavar="INT", help="exclude nodes that are more than n hops away (default=2, 0 -> infinite)") args.add('--pylib', action='store_true', help="include python std lib modules") args.add('--pylib-all', action='store_true', help="include python all std lib modules (incl. C modules)") args.add('--include-missing', action='store_true', help="include modules that are not installed (or can't be found on sys.path)") args.add('-x', '--exclude', default=[], nargs="+", metavar="PATTERN", help="input files to skip (e.g. `foo.*`), multiple file names can be provided") args.add('-xx', '--exclude-exact', default=[], nargs="+", metavar="MODULE", help="same as --exclude, except requires the full match. `-xx` will exclude, but not") args.add('--only', default=[], nargs="+", metavar="MODULE_PATH", help="only include modules that start with MODULE_PATH") args.add('--externals', action='store_true', help='create list of direct external dependencies') args.add('--reverse', action='store_true', help="draw arrows to (instead of from) imported modules") args.add('--cluster', action='store_true', help="draw external dependencies as separate clusters") args.add('--min-cluster-size', default=0, type=int, metavar="INT", help="the minimum number of nodes a dependency must have before being clustered (default=0)") args.add('--max-cluster-size', default=0, type=int, metavar="INT", help="the maximum number of nodes a dependency can have before the cluster is collapsed to a single node (default=0)") args.add('--keep-target-cluster', action='store_true', help="draw target module as a cluster") args.add('--rmprefix', default=[], nargs="+", metavar="PREFIX", help="remove PREFIX from the displayed name of the nodes") args.add('--start-color', default=0, type=int, metavar="INT", help="starting value for hue from 0 (red/default) to 360.") _args = args.parse_args(argv) if _args.externals: return dict( T='svg', config=None, debug=False, display=None, exclude=[], externals=True, fname=_args.fname, format='svg', max_bacon=10, no_config=False, nodot=False, noise_level=200, no_show=True, output=None, pylib=False, pylib_all=False, show=False, show_cycles=False, show_deps=False, show_dot=False, show_raw_deps=False, verbose=0, include_missing=True, reverse=False, start_color=0, find_package=False, ) if _args.no_output: _args.no_show = True = not _args.no_show if _args.nodot and _args.show_cycles: error("Can't use --nodot and --show-cycles together") # pragma: nocover if _args.nodot: _args.show_dot = False if _args.max_bacon == 0: _args.max_bacon = sys.maxsize if _args.keep_target_cluster or _args.min_cluster_size > 0 or _args.max_cluster_size > 0: _args.cluster = True if find_package: _args.fname = _find_current_package() _args.format = getattr(_args, 'T', getattr(_args, 'format', None)) verbose = _mkverbose(max(_args.verbose, int(_args.debug))) verbose(2, _args, '\n') if _args.debug: # pragma: nocover _args.verbose = 1 = True _args.show_deps = True _args.show_dot = True return vars(_args)