/
info.py
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/
info.py
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"""
pgxnclient -- informative commands implementation
"""
# Copyright (C) 2011-2021 Daniele Varrazzo
# This file is part of the PGXN client
import re
import logging
import textwrap
import xml.sax.saxutils as saxutils
import six
from pgxnclient import SemVer
from pgxnclient.i18n import _, N_
from pgxnclient.utils import emit
from pgxnclient.errors import NotFound, ResourceNotFound
from pgxnclient.commands import Command, WithSpec
logger = logging.getLogger('pgxnclient.commands')
class Mirror(Command):
name = 'mirror'
description = N_("return information about the available mirrors")
@classmethod
def customize_parser(self, parser, subparsers, **kwargs):
subp = super(Mirror, self).customize_parser(
parser, subparsers, **kwargs
)
subp.add_argument(
'uri',
nargs='?',
metavar="URI",
help=_(
"return detailed info about this mirror."
" If not specified return a list of mirror URIs"
),
)
subp.add_argument(
'--detailed',
action="store_true",
help=_("return full details for each mirror"),
)
return subp
def run(self):
data = self.api.mirrors()
if self.opts.uri:
detailed = True
data = [d for d in data if d['uri'] == self.opts.uri]
if not data:
raise ResourceNotFound(
_('mirror not found: %s') % self.opts.uri
)
else:
detailed = self.opts.detailed
for i, d in enumerate(data):
if not detailed:
emit(d['uri'])
else:
for k in u"""
uri frequency location bandwidth organization email
timezone src rsync notes
""".split():
emit("%s: %s" % (k, d.get(k, '')))
emit()
class Search(Command):
name = 'search'
description = N_("search in the available extensions")
@classmethod
def customize_parser(self, parser, subparsers, **kwargs):
subp = super(Search, self).customize_parser(
parser, subparsers, **kwargs
)
g = subp.add_mutually_exclusive_group()
g.add_argument(
'--docs',
dest='where',
action='store_const',
const='docs',
default='docs',
help=_("search in documentation [default]"),
)
g.add_argument(
'--dist',
dest='where',
action='store_const',
const="dists",
help=_("search in distributions"),
)
g.add_argument(
'--ext',
dest='where',
action='store_const',
const='extensions',
help=_("search in extensions"),
)
subp.add_argument(
'query', metavar='TERM', nargs='+', help=_("a string to search")
)
return subp
def run(self):
data = self.api.search(self.opts.where, self.opts.query)
for hit in data['hits']:
emit("%s %s" % (hit['dist'], hit['version']))
if 'excerpt' in hit:
excerpt = self.clean_excerpt(hit['excerpt'])
for line in textwrap.wrap(excerpt, 72):
emit(" " + line)
emit()
def clean_excerpt(self, excerpt):
"""Clean up the excerpt returned in the json result for output."""
# replace ellipsis with three dots, as there's no chance
# to have them printed on non-utf8 consoles.
# Also, they suck obscenely on fixed-width output.
excerpt = excerpt.replace('…', '...')
# TODO: this apparently misses a few entities
excerpt = saxutils.unescape(excerpt)
excerpt = excerpt.replace('"', '"')
# Convert numerical entities
excerpt = re.sub(
r'\&\#(\d+)\;', lambda c: six.unichr(int(c.group(1))), excerpt
)
# Hilight found terms
# TODO: use proper highlight with escape chars?
excerpt = excerpt.replace('<strong></strong>', '')
excerpt = excerpt.replace('<strong>', '*')
excerpt = excerpt.replace('</strong>', '*')
return excerpt
class Info(WithSpec, Command):
name = 'info'
description = N_("print information about a distribution")
@classmethod
def customize_parser(self, parser, subparsers, **kwargs):
subp = super(Info, self).customize_parser(parser, subparsers, **kwargs)
g = subp.add_mutually_exclusive_group()
g.add_argument(
'--details',
dest='what',
action='store_const',
const='details',
default='details',
help=_("show details about the distribution [default]"),
)
g.add_argument(
'--meta',
dest='what',
action='store_const',
const='meta',
help=_("show the distribution META.json"),
)
g.add_argument(
'--readme',
dest='what',
action='store_const',
const='readme',
help=_("show the distribution README"),
)
g.add_argument(
'--versions',
dest='what',
action='store_const',
const='versions',
help=_("show the list of available versions"),
)
return subp
def run(self):
spec = self.get_spec()
getattr(self, 'print_' + self.opts.what)(spec)
def print_meta(self, spec):
data = self._get_dist_data(spec.name)
ver = self.get_best_version(data, spec, quiet=True)
emit(self.api.meta(spec.name, ver, as_json=False))
def print_readme(self, spec):
data = self._get_dist_data(spec.name)
ver = self.get_best_version(data, spec, quiet=True)
emit(self.api.readme(spec.name, ver))
def print_details(self, spec):
data = self._get_dist_data(spec.name)
ver = self.get_best_version(data, spec, quiet=True)
data = self.api.meta(spec.name, ver)
for k in u"""
name abstract description maintainer license release_status
version date sha1
""".split():
try:
v = data[k]
except KeyError:
logger.warning(_("data key '%s' not found"), k)
continue
if isinstance(v, list):
for vv in v:
emit("%s: %s" % (k, vv))
elif isinstance(v, dict):
for kk, vv in v.items():
emit("%s: %s: %s" % (k, kk, vv))
else:
emit("%s: %s" % (k, v))
k = 'provides'
for ext, dext in data[k].items():
emit("%s: %s: %s" % (k, ext, dext['version']))
k = 'prereqs'
if k in data:
for phase, rels in data[k].items():
for rel, pkgs in rels.items():
for pkg, ver in pkgs.items():
emit("%s: %s: %s %s" % (phase, rel, pkg, ver))
def print_versions(self, spec):
data = self._get_dist_data(spec.name)
name = data['name']
vs = [
(SemVer(d['version']), s)
for s, ds in data['releases'].items()
for d in ds
]
vs = [(v, s) for v, s in vs if spec.accepted(v)]
vs.sort(reverse=True)
for v, s in vs:
emit("%s %s %s" % (name, v, s))
def _get_dist_data(self, name):
try:
return self.api.dist(name)
except NotFound as e:
# maybe the user was looking for an extension instead?
try:
ext = self.api.ext(name)
except NotFound:
pass
else:
vs = ext.get('versions', {})
for extver, ds in vs.items():
for d in ds:
if 'dist' not in d:
continue
dist = d['dist']
distver = d.get('version', 'unknown')
logger.info(
_("extension %s %s found in distribution %s %s"),
name,
extver,
dist,
distver,
)
raise e