beets/beetsplug/ipfs.py
2015-05-14 19:05:22 -04:00

135 lines
4.9 KiB
Python

# This file is part of beets.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
"""Adds support for ipfs. Requires go-ipfs and a running ipfs daemon
"""
from beets import ui, library
from beets.plugins import BeetsPlugin
import subprocess
import shutil
import os
import tempfile
class IPFSPlugin(BeetsPlugin):
def __init__(self):
super(IPFSPlugin, self).__init__()
def commands(self):
cmd = ui.Subcommand('ipfs',
help='interact with ipfs')
cmd.parser.add_option('-a', '--add', dest='add',
action='store_true',
help='Add to ipfs')
cmd.parser.add_option('-g', '--get', dest='get',
action='store_true',
help='Get from ipfs')
cmd.parser.add_option('-p', '--publish', dest='publish',
action='store_true',
help='Publish local library to ipfs')
cmd.parser.add_option('-i', '--import', dest='_import',
action='store_true',
help='Import remote library from ipfs')
def func(lib, opts, args):
if opts.add:
for album in lib.albums(ui.decargs(args)):
self.ipfs_add(album)
album.store()
if opts.get:
self.ipfs_get(lib, ui.decargs(args))
if opts.publish:
self.ipfs_publish(lib)
if opts._import:
self.ipfs_import(lib, ui.decargs(args))
cmd.func = func
return [cmd]
def ipfs_add(self, lib):
try:
album_dir = lib.item_dir()
except AttributeError:
return
self._log.info('Adding {0} to ipfs', album_dir)
_proc = subprocess.Popen(["ipfs", "add", "-q", "-r", album_dir],
stdout=subprocess.PIPE)
all_lines = _proc.stdout.readlines()
length = len(all_lines)
for linenr, line in enumerate(all_lines):
if linenr == length-1:
# last printed line is the album hash
self._log.info("album: {0}", line)
lib.ipfs = line
else:
try:
item = lib.items()[linenr]
self._log.info("item: {0}", line)
item.ipfs = line
item.store()
except IndexError:
# if there's non music files in the to-add folder they'll
# get ignored here
pass
return True
def ipfs_get(self, lib, _hash):
try:
subprocess.check_output(["ipfs", "get", _hash[0]],
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as err:
self._log.error('Failed to get {0} from ipfs.\n{1}',
_hash[0], err.output)
return False
self._log.info('Getting {0} from ipfs', _hash[0])
imp = ui.commands.TerminalImportSession(lib, loghandler=None,
query=None, paths=_hash)
imp.run()
shutil.rmtree(_hash[0])
def ipfs_publish(self, lib):
# TODO: strip local paths from library before publishing
with tempfile.NamedTemporaryFile() as tmp:
ipfs_lib = self.ipfs_added_albums(lib, tmp.name)
_proc = subprocess.Popen(["ipfs", "add", "-q", tmp.name],
stdout=subprocess.PIPE)
self._log.info("hash of library: {0}", _proc.stdout.readline())
def ipfs_import(self, lib, _hash):
# TODO: should be able to tag libraries, for example by nicks
subprocess.Popen(["ipfs", "get", _hash[0]])
path = os.path.dirname(lib.path) + "/" + _hash[0] + ".db"
shutil.move(_hash[0], path)
def ipfs_added_albums(self, rlib, tmpname):
""" Returns a new library with only albums/items added to ipfs
"""
tmplib = library.Library(tmpname)
for album in rlib.albums():
try:
if album.ipfs:
for item in album.items():
tmplib.add(item)
tmplib.add(album)
except AttributeError:
pass
return tmplib