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Code Issues Releases Wiki Activity

Refactored FolderManager to raise exceptions

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rather than returning status codes
This commit is contained in:
spl0k 2018-03-04 17:36:35 +01:00
parent ef9e7af026
commit 4cbc8765e0
8 changed files with 67 additions and 114 deletions
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16
supysonic/cli.py
View File

@ -156,18 +156,18 @@ class SupysonicCLI(cmd.Cmd):
self.write_line('\n'.join('{0: <16}{1}'.format(f.name, f.path) for f in Folder.select(lambda f: f.root)))
def folder_add(self, name, path):
ret = FolderManager.add(name, path)
if ret != FolderManager.SUCCESS:
self.write_error_line(FolderManager.error_str(ret))
else:
try:
FolderManager.add(name, path)
self.write_line("Folder '{}' added".format(name))
except ValueError as e:
self.write_error_line(str(e))
def folder_delete(self, name):
ret = FolderManager.delete_by_name(name)
if ret != FolderManager.SUCCESS:
self.write_error_line(FolderManager.error_str(ret))
else:
try:
FolderManager.delete_by_name(name)
self.write_line("Deleted folder '{}'".format(name))
except ObjectNotFound as e:
self.write_error_line(str(e))
def folder_scan(self, folders, force):
extensions = self.__config.BASE['scanner_extensions']

34
supysonic/frontend/folder.py
View File

@ -22,6 +22,7 @@ import os.path
import uuid
from flask import current_app, flash, redirect, render_template, request, url_for
from pony.orm import ObjectNotFound
from ..db import Folder
from ..managers.folder import FolderManager
@ -53,29 +54,25 @@ def add_folder_post():
if error:
return render_template('addfolder.html')
ret = FolderManager.add(name, path)
if ret != FolderManager.SUCCESS:
flash(FolderManager.error_str(ret))
try:
FolderManager.add(name, path)
except ValueError as e:
flash(str(e), 'error')
return render_template('addfolder.html')
flash("Folder '%s' created. You should now run a scan" % name)
return redirect(url_for('frontend.folder_index'))
@frontend.route('/folder/del/<id>')
@admin_only
def del_folder(id):
try:
idid = uuid.UUID(id)
except ValueError:
flash('Invalid folder id')
return redirect(url_for('frontend.folder_index'))
ret = FolderManager.delete(idid)
if ret != FolderManager.SUCCESS:
flash(FolderManager.error_str(ret))
else:
FolderManager.delete(id)
flash('Deleted folder')
except ValueError as e:
flash(str(e), 'error')
except ObjectNotFound:
flash('No such folder', 'error')
return redirect(url_for('frontend.folder_index'))
@ -93,10 +90,15 @@ def scan_folder(id = None):
for folder in Folder.select(lambda f: f.root):
scanner.scan(folder)
else:
status, folder = FolderManager.get(id)
if status != FolderManager.SUCCESS:
flash(FolderManager.error_str(status))
try:
folder = FolderManager.get(id)
except ValueError as e:
flash(str(e), 'error')
return redirect(url_for('frontend.folder_index'))
except ObjectNotFound:
flash('No such folder', 'error')
return redirect(url_for('frontend.folder_index'))
scanner.scan(folder)
scanner.finish()

72
supysonic/managers/folder.py
View File

@ -21,69 +21,47 @@
import os.path
import uuid
from pony.orm import db_session, select
from pony.orm import select
from pony.orm import ObjectNotFound
from ..db import Folder, Artist, Album, Track, StarredFolder, RatingFolder
from ..db import Folder, Track
from ..py23 import strtype
from ..scanner import Scanner
class FolderManager:
SUCCESS = 0
INVALID_ID = 1
NAME_EXISTS = 2
INVALID_PATH = 3
PATH_EXISTS = 4
NO_SUCH_FOLDER = 5
SUBPATH_EXISTS = 6
@staticmethod
@db_session
def get(uid):
if isinstance(uid, strtype):
try:
uid = uuid.UUID(uid)
except ValueError:
return FolderManager.INVALID_ID, None
elif isinstance(uid, uuid.UUID):
pass
else:
return FolderManager.INVALID_ID, None
raise ValueError('Invalid folder id')
try:
folder = Folder[uid]
return FolderManager.SUCCESS, folder
except ObjectNotFound:
return FolderManager.NO_SUCH_FOLDER, None
return Folder[uid]
@staticmethod
@db_session
def add(name, path):
if Folder.get(name = name, root = True) is not None:
return FolderManager.NAME_EXISTS
raise ValueError("Folder '{}' exists".format(name))
path = os.path.abspath(path)
if not os.path.isdir(path):
return FolderManager.INVALID_PATH
raise ValueError("The path doesn't exits or is'nt a directory")
if Folder.get(path = path) is not None:
return FolderManager.PATH_EXISTS
if any(path.startswith(p) for p in select(f.path for f in Folder)):
return FolderManager.PATH_EXISTS
raise ValueError('This path is already registered')
if any(path.startswith(p) for p in select(f.path for f in Folder if f.root)):
raise ValueError('This path is already registered')
if Folder.exists(lambda f: f.path.startswith(path)):
return FolderManager.SUBPATH_EXISTS
raise ValueError('This path contains a folder that is already registered')
folder = Folder(root = True, name = name, path = path)
return FolderManager.SUCCESS
return Folder(root = True, name = name, path = path)
@staticmethod
@db_session
def delete(uid):
status, folder = FolderManager.get(uid)
if status != FolderManager.SUCCESS:
return status
folder = FolderManager.get(uid)
if not folder.root:
return FolderManager.NO_SUCH_FOLDER
raise ObjectNotFound(Folder)
scanner = Scanner()
for track in Track.select(lambda t: t.root_folder == folder):
@ -91,31 +69,11 @@ class FolderManager:
scanner.finish()
folder.delete()
return FolderManager.SUCCESS
@staticmethod
@db_session
def delete_by_name(name):
folder = Folder.get(name = name, root = True)
if not folder:
return FolderManager.NO_SUCH_FOLDER
return FolderManager.delete(folder.id)
@staticmethod
def error_str(err):
if err == FolderManager.SUCCESS:
return 'No error'
elif err == FolderManager.INVALID_ID:
return 'Invalid folder id'
elif err == FolderManager.NAME_EXISTS:
return 'There is already a folder with that name. Please pick another one.'
elif err == FolderManager.INVALID_PATH:
return "The path doesn't exists or isn't a directory"
elif err == FolderManager.PATH_EXISTS:
return 'This path is already registered'
elif err == FolderManager.NO_SUCH_FOLDER:
return 'No such folder'
elif err == FolderManager.SUBPATH_EXISTS:
return 'This path contains a folder that is already registered'
return 'Unknown error'
raise ObjectNotFound(Folder)
FolderManager.delete(folder.id)

6
tests/api/test_transcoding.py
View File

@ -24,10 +24,10 @@ class TranscodingTestCase(ApiTestBase):
super(TranscodingTestCase, self).setUp()
self._patch_client()
FolderManager.add('Folder', 'tests/assets/folder')
scanner = Scanner()
with db_session:
scanner.scan(Folder.get())
folder = FolderManager.add('Folder', 'tests/assets/folder')
scanner = Scanner()
scanner.scan(folder)
scanner.finish()
self.trackid = Track.get().id

3
tests/base/test_scanner.py
View File

@ -26,9 +26,8 @@ class ScannerTestCase(unittest.TestCase):
def setUp(self):
db.init_database('sqlite:', True)
FolderManager.add('folder', os.path.abspath('tests/assets'))
with db_session:
folder = db.Folder.select().first()
folder = FolderManager.add('folder', os.path.abspath('tests/assets'))
self.assertIsNotNone(folder)
self.folderid = folder.id

1
tests/base/test_watcher.py
View File

@ -85,6 +85,7 @@ class WatcherTestCase(WatcherTestBase):
def setUp(self):
super(WatcherTestCase, self).setUp()
self.__dir = tempfile.mkdtemp()
with db_session:
FolderManager.add('Folder', self.__dir)
self._start()

4
tests/frontend/test_folder.py
View File

@ -72,7 +72,7 @@ class FolderTestCase(FrontendTestBase):
self._login('alice', 'Alic3')
rv = self.client.get('/folder/del/string', follow_redirects = True)
self.assertIn('Invalid', rv.data)
self.assertIn('badly formed', rv.data)
rv = self.client.get('/folder/del/' + str(uuid.uuid4()), follow_redirects = True)
self.assertIn('No such folder', rv.data)
rv = self.client.get('/folder/del/' + str(folder.id), follow_redirects = True)
@ -91,7 +91,7 @@ class FolderTestCase(FrontendTestBase):
self._login('alice', 'Alic3')
rv = self.client.get('/folder/scan/string', follow_redirects = True)
self.assertIn('Invalid', rv.data)
self.assertIn('badly formed', rv.data)
rv = self.client.get('/folder/scan/' + str(uuid.uuid4()), follow_redirects = True)
self.assertIn('No such folder', rv.data)
rv = self.client.get('/folder/scan/' + str(folder.id), follow_redirects = True)

41
tests/managers/test_manager_folder.py
View File

@ -40,8 +40,8 @@ class FolderManagerTestCase(unittest.TestCase):
@db_session
def create_folders(self):
# Add test folders
self.assertEqual(FolderManager.add('media', self.media_dir), FolderManager.SUCCESS)
self.assertEqual(FolderManager.add('music', self.music_dir), FolderManager.SUCCESS)
self.assertIsNotNone(FolderManager.add('media', self.media_dir))
self.assertIsNotNone(FolderManager.add('music', self.music_dir))
folder = db.Folder(
root = False,
@ -75,14 +75,14 @@ class FolderManagerTestCase(unittest.TestCase):
# Get existing folders
for name in ['media', 'music']:
folder = db.Folder.get(name = name, root = True)
self.assertEqual(FolderManager.get(folder.id), (FolderManager.SUCCESS, folder))
self.assertEqual(FolderManager.get(folder.id), folder)
# Get with invalid UUID
self.assertEqual(FolderManager.get('invalid-uuid'), (FolderManager.INVALID_ID, None))
self.assertEqual(FolderManager.get(0xdeadbeef), (FolderManager.INVALID_ID, None))
self.assertRaises(ValueError, FolderManager.get, 'invalid-uuid')
self.assertRaises(ValueError, FolderManager.get, 0xdeadbeef)
# Non-existent folder
self.assertEqual(FolderManager.get(uuid.uuid4()), (FolderManager.NO_SUCH_FOLDER, None))
self.assertRaises(ObjectNotFound, FolderManager.get, uuid.uuid4())
@db_session
def test_add_folder(self):
@ -90,27 +90,27 @@ class FolderManagerTestCase(unittest.TestCase):
self.assertEqual(db.Folder.select().count(), 3)
# Create duplicate
self.assertEqual(FolderManager.add('media', self.media_dir), FolderManager.NAME_EXISTS)
self.assertRaises(ValueError, FolderManager.add, 'media', self.media_dir)
self.assertEqual(db.Folder.select(lambda f: f.name == 'media').count(), 1)
# Duplicate path
self.assertEqual(FolderManager.add('new-folder', self.media_dir), FolderManager.PATH_EXISTS)
self.assertRaises(ValueError, FolderManager.add, 'new-folder', self.media_dir)
self.assertEqual(db.Folder.select(lambda f: f.path == self.media_dir).count(), 1)
# Invalid path
path = os.path.abspath('/this/not/is/valid')
self.assertEqual(FolderManager.add('invalid-path', path), FolderManager.INVALID_PATH)
self.assertRaises(ValueError, FolderManager.add, 'invalid-path', path)
self.assertFalse(db.Folder.exists(path = path))
# Subfolder of already added path
path = os.path.join(self.media_dir, 'subfolder')
os.mkdir(path)
self.assertEqual(FolderManager.add('subfolder', path), FolderManager.PATH_EXISTS)
self.assertRaises(ValueError, FolderManager.add, 'subfolder', path)
self.assertEqual(db.Folder.select().count(), 3)
# Parent folder of an already added path
path = os.path.join(self.media_dir, '..')
self.assertEqual(FolderManager.add('parent', path), FolderManager.SUBPATH_EXISTS)
self.assertRaises(ValueError, FolderManager.add, 'parent', path)
self.assertEqual(db.Folder.select().count(), 3)
@db_session
@ -120,20 +120,20 @@ class FolderManagerTestCase(unittest.TestCase):
# Delete existing folders
for name in ['media', 'music']:
folder = db.Folder.get(name = name, root = True)
self.assertEqual(FolderManager.delete(folder.id), FolderManager.SUCCESS)
FolderManager.delete(folder.id)
self.assertRaises(ObjectNotFound, db.Folder.__getitem__, folder.id)
# Delete invalid UUID
self.assertEqual(FolderManager.delete('invalid-uuid'), FolderManager.INVALID_ID)
self.assertRaises(ValueError, FolderManager.delete, 'invalid-uuid')
self.assertEqual(db.Folder.select().count(), 1) # 'non-root' remaining
# Delete non-existent folder
self.assertEqual(FolderManager.delete(uuid.uuid4()), FolderManager.NO_SUCH_FOLDER)
self.assertRaises(ObjectNotFound, FolderManager.delete, uuid.uuid4())
self.assertEqual(db.Folder.select().count(), 1) # 'non-root' remaining
# Delete non-root folder
folder = db.Folder.get(name = 'non-root')
self.assertEqual(FolderManager.delete(folder.id), FolderManager.NO_SUCH_FOLDER)
self.assertRaises(ObjectNotFound, FolderManager.delete, folder.id)
self.assertEqual(db.Folder.select().count(), 1) # 'non-root' remaining
@db_session
@ -142,20 +142,13 @@ class FolderManagerTestCase(unittest.TestCase):
# Delete existing folders
for name in ['media', 'music']:
self.assertEqual(FolderManager.delete_by_name(name), FolderManager.SUCCESS)
FolderManager.delete_by_name(name)
self.assertFalse(db.Folder.exists(name = name))
# Delete non-existent folder
self.assertEqual(FolderManager.delete_by_name('null'), FolderManager.NO_SUCH_FOLDER)
self.assertRaises(ObjectNotFound, FolderManager.delete_by_name, 'null')
self.assertEqual(db.Folder.select().count(), 1) # 'non-root' remaining
def test_human_readable_error(self):
values = [ FolderManager.SUCCESS, FolderManager.INVALID_ID, FolderManager.NAME_EXISTS,
FolderManager.INVALID_PATH, FolderManager.PATH_EXISTS, FolderManager.NO_SUCH_FOLDER,
FolderManager.SUBPATH_EXISTS, 1594826, 'string', uuid.uuid4() ]
for value in values:
self.assertIsInstance(FolderManager.error_str(value), strtype)
if __name__ == '__main__':
unittest.main()