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import click
CONTEXT_SETTINGS = dict(help_option_names=['-h', '--help'])
def enable_debug():
import logging
logger = logging.getLogger('peewee')
logger.setLevel(logging.DEBUG)
logger.addHandler(logging.StreamHandler())
@click.group(context_settings = CONTEXT_SETTINGS)
@click.option('--debug', '-d', is_flag=True, default=False)
def cli(debug):
if debug: enable_debug()
@cli.group()
def db():
"""Database Management"""
pass
@db.command()
def init():
"""Initialize the database, if not done already."""
from .model import create_tables, db
from .prefixes import register_prefixes
create_tables()
with db.atomic():
register_prefixes()
@db.command()
@click.confirmation_option(prompt="Are you sure you want to drop the database?")
def drop():
"""Completely drop all tables."""
from .model import drop_tables
drop_tables()
@cli.group()
def tag():
"""Handling of tags"""
pass
@tag.command('list')
def list_tags():
from .model import Tag
print("Tags")
print("====")
print()
for t in Tag.select():
print(' *', t)
@tag.command('prefixes')
def list_prefixes():
from .model import Prefix
print("Prefixes")
print("========")
print()
for p in Prefix.select():
print(" * %s" % p)
def prefix_tag_name(name, prefix=None):
if prefix:
return "%s:%s" % (prefix, name)
else:
return name
class PrefixTag:
def __init__(self, tag, prefix = None):
self.tag = tag
self.prefix = prefix
def __str__(self):
if self.prefix:
return '%s:%s' % (self.prefix, self.tag)
else:
return self.tag
def __iter__(self):
yield self.prefix
yield self.tag
def prefixed_name(self):
return prefix_tag_name(self.tag, self.prefix)
def __str__(self):
return self.prefixed_name()
class PrefixTagType(click.ParamType):
name = 'prefixed tag'
def convert(self, value, param, ctx):
try:
prefix, tag = value.split(':', 1)
except ValueError:
return PrefixTag(value)
return PrefixTag(tag, prefix)
TAG = PrefixTagType()
def create_tag(name, description=None):
from .model import Tag, Prefix, db
with db.atomic():
if name.prefix:
prefix, created = Prefix.get_or_create(name = name.prefix)
if not created and prefix.virtual:
raise click.UsageError("Prefix '%s' is not allowed to carry additional tags." % name.prefix)
return Tag.create_or_get(name = name.tag, prefix = name.prefix, description = description)
def fetch_tags(tag_list, ignore_missing=False):
if not tag_list:
return []
from .model import Tag
from .peewee_ext import sqlite_tuple_in
fetched_tags = Tag.select().where(sqlite_tuple_in((Tag.prefix, Tag.name), tag_list)).execute()
if len(fetched_tags) < len(tag_list):
print("Some tags were not present:", ', '.join(set(map(str, tag_list)).difference(map(str, fetched_tags))))
if not ignore_missing:
raise click.ClickException("Not all tags present")
return fetched_tags
@tag.command('add')
@click.argument('name', type = TAG)
@click.argument('description', required = False)
def add_tag(name, description):
created, tag = create_tag(name, description)
if not created:
print("Tag already existed:", tag)
@tag.command('edit')
@click.argument('name', type = TAG)
@click.argument('implies', type = TAG, nargs = -1)
@click.option('--description')
def edit_tag(name, implies, description):
from .model import Tag, TagImplications, db
from peewee import IntegrityError
try:
tag = Tag.get(name = name.tag, prefix = name.prefix)
except Tag.DoesNotExist:
raise click.UsageError("Tag '%s' does not exist." % name)
with db.atomic():
for i in fetch_tags(implies):
try:
TagImplications.create(tag = tag, implies_tag = i)
except IntegrityError:
print("Implication onto '%s' already existing. Skipping." % i)
if description:
tag.description = description
tag.save()
@cli.group()
def doc():
"""Document handling"""
pass
@doc.command('add')
@click.argument('file', type=click.File(mode = 'rb'))
@click.argument('tags', type = TAG, nargs = -1)
@click.option('--create-tags', '-c', is_flag = True)
@click.option('--ignore-missing-tags', '-i', is_flag = True)
def add_doc(file, tags, create_tags, ignore_missing_tags):
"""Add a new document together with the given tags."""
from .model import Document, Tag, db, DocumentTag
import magic
with db.atomic():
if tags:
if create_tags:
tags = [create_tag(tag)[0] for tag in tags]
else:
tags = fetch_Tags(tags, ignore_missing_tags)
mimetype = magic.from_file(file.name, mime=True)
doc = Document.create(content = file.read(),
file_type = mimetype,
original_path = file.name,
direction = Document.Direction.IN)
for t in tags:
DocumentTag.create(document = doc, tag = t)
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