self.db.parent().makedirs()
self.conn = sqlite.connect(database=self.db.path, detect_types=sqlite.PARSE_DECLTYPES)
c = self.conn.cursor()
- c.execute("CREATE TABLE files (path TEXT PRIMARY KEY, hash KHASH, size NUMBER, mtime NUMBER, refreshed TIMESTAMP)")
- c.execute("CREATE INDEX files_hash ON files(hash)")
- c.execute("CREATE INDEX files_refreshed ON files(refreshed)")
+ c.execute("CREATE TABLE files (path TEXT PRIMARY KEY UNIQUE, hashID INTEGER, " +
+ "size NUMBER, mtime NUMBER)")
+ c.execute("CREATE TABLE hashes (hashID INTEGER PRIMARY KEY AUTOINCREMENT, " +
+ "hash KHASH UNIQUE, pieces KHASH, " +
+ "piecehash KHASH, refreshed TIMESTAMP)")
+ c.execute("CREATE INDEX hashes_refreshed ON hashes(refreshed)")
+ c.execute("CREATE INDEX hashes_piecehash ON hashes(piecehash)")
c.close()
self.conn.commit()
c.close()
return res
- def storeFile(self, file, hash):
- """Store or update a file in the database."""
- file.restat()
+ def storeFile(self, file, hash, pieces = ''):
+ """Store or update a file in the database.
+
+ @return: True if the hash was not in the database before
+ (so it needs to be added to the DHT)
+ """
+ piecehash = ''
+ if pieces:
+ s = sha.new().update(pieces)
+ piecehash = sha.digest()
c = self.conn.cursor()
- c.execute("SELECT path FROM files WHERE path = ?", (file.path, ))
+ c.execute("SELECT hashID, piecehash FROM hashes WHERE hash = ?", (khash(hash), ))
row = c.fetchone()
if row:
- c.execute("UPDATE files SET hash = ?, size = ?, mtime = ?, refreshed = ?",
- (khash(hash), file.getsize(), file.getmtime(), datetime.now()))
+ assert piecehash == row['piecehash']
+ new_hash = False
+ hashID = row['hashID']
else:
- c.execute("INSERT OR REPLACE INTO files VALUES(?, ?, ?, ?, ?)",
- (file.path, khash(hash), file.getsize(), file.getmtime(), datetime.now()))
+ c = self.conn.cursor()
+ c.execute("INSERT OR REPLACE INTO hashes (hash, pieces, piecehash, refreshed) VALUES (?, ?, ?)",
+ (khash(hash), khash(pieces), khash(piecehash), datetime.now()))
+ self.conn.commit()
+ new_hash = True
+ hashID = c.lastrowid
+
+ file.restat()
+ c.execute("INSERT OR REPLACE INTO files (path, hashID, size, mtime) VALUES (?, ?, ?, ?)",
+ (file.path, hashID, file.getsize(), file.getmtime()))
self.conn.commit()
c.close()
+ return new_hash
+
def getFile(self, file):
"""Get a file from the database.
None if not in database or missing
"""
c = self.conn.cursor()
- c.execute("SELECT hash, size, mtime FROM files WHERE path = ?", (file.path, ))
+ c.execute("SELECT hash, size, mtime, pieces FROM files JOIN hashes USING (hashID) WHERE path = ?", (file.path, ))
row = c.fetchone()
res = None
if row:
res = {}
res['hash'] = row['hash']
res['size'] = row['size']
+ res['pieces'] = row['pieces']
c.close()
return res
- def lookupHash(self, hash):
+ def lookupHash(self, hash, filesOnly = False):
"""Find a file by hash in the database.
If any found files have changed or are missing, they are removed
- from the database.
+ from the database. If filesOnly is False then it will also look for
+ piece string hashes if no files can be found.
@return: list of dictionaries of info for the found files
"""
c = self.conn.cursor()
- c.execute("SELECT path, size, mtime FROM files WHERE hash = ?", (khash(hash), ))
+ c.execute("SELECT path, size, mtime, refreshed, pieces FROM files JOIN hashes USING (hashID) WHERE hash = ?", (khash(hash), ))
row = c.fetchone()
files = []
while row:
res = {}
res['path'] = file
res['size'] = row['size']
+ res['refreshed'] = row['refreshed']
+ res['pieces'] = row['pieces']
files.append(res)
row = c.fetchone()
+
+ if not filesOnly and not files:
+ c.execute("SELECT refreshed, pieces, piecehash FROM hashes WHERE piecehash = ?", (khash(hash), ))
+ row = c.fetchone()
+ if row:
+ res = {}
+ res['refreshed'] = row['refreshed']
+ res['pieces'] = row['pieces']
+ files.append(res)
+
c.close()
return files
row = c.fetchone()
return self._removeChanged(file, row)
- def refreshFile(self, file):
- """Refresh the publishing time of a file.
-
- If it has changed or is missing, it is removed from the table.
-
- @return: True if unchanged, False if changed, None if not in database
- """
+ def refreshHash(self, hash):
+ """Refresh the publishing time all files with a hash."""
c = self.conn.cursor()
- c.execute("SELECT size, mtime FROM files WHERE path = ?", (file.path, ))
- row = c.fetchone()
- res = None
- if row:
- res = self._removeChanged(file, row)
- if res:
- c.execute("UPDATE files SET refreshed = ? WHERE path = ?", (datetime.now(), file.path))
- return res
+ c.execute("UPDATE hashes SET refreshed = ? WHERE hash = ?", (datetime.now(), khash(hash)))
+ c.close()
- def expiredFiles(self, expireAfter):
+ def expiredHashes(self, expireAfter):
"""Find files that need refreshing after expireAfter seconds.
- Also removes any entries from the table that no longer exist.
+ For each hash that needs refreshing, finds all the files with that hash.
+ If the file has changed or is missing, it is removed from the table.
@return: dictionary with keys the hashes, values a list of FilePaths
"""
t = datetime.now() - timedelta(seconds=expireAfter)
+
+ # First find the hashes that need refreshing
c = self.conn.cursor()
- c.execute("SELECT path, hash, size, mtime FROM files WHERE refreshed < ?", (t, ))
+ c.execute("SELECT hashID, hash, pieces FROM hashes WHERE refreshed < ?", (t, ))
row = c.fetchone()
expired = {}
while row:
- res = self._removeChanged(FilePath(row['path']), row)
- if res:
- expired.setdefault(row['hash'], []).append(FilePath(row['path']))
+ res = expired.setdefault(row['hash'], {})
+ res['hashID'] = row['hashID']
+ res['hash'] = row['hash']
+ res['pieces'] = row['pieces']
+ row = c.fetchone()
+
+ # Make sure there are still valid files for each hash
+ for hash in expired.values():
+ valid = False
+ c.execute("SELECT path, size, mtime FROM files WHERE hashID = ?", (hash['hashID'], ))
row = c.fetchone()
+ while row:
+ res = self._removeChanged(FilePath(row['path']), row)
+ if res:
+ valid = True
+ row = c.fetchone()
+ if not valid:
+ del expired[hash['hash']]
+ c.execute("DELETE FROM hashes WHERE hashID = ?", (hash['hashID'], ))
+
+ self.conn.commit()
c.close()
+
return expired
def removeUntrackedFiles(self, dirs):
self.store = DB(self.db)
self.store.storeFile(self.file, self.hash)
- def test_openExistsingDB(self):
+ def test_openExistingDB(self):
self.store.close()
self.store = None
sleep(1)
self.failUnless(res)
self.failUnlessEqual(res['hash'], self.hash)
+ def test_lookupHash(self):
+ res = self.store.lookupHash(self.hash)
+ self.failUnless(res)
+ self.failUnlessEqual(len(res), 1)
+ self.failUnlessEqual(res[0]['path'].path, self.file.path)
+
def test_isUnchanged(self):
res = self.store.isUnchanged(self.file)
self.failUnless(res)
self.file.touch()
res = self.store.isUnchanged(self.file)
self.failUnless(res == False)
- self.file.remove()
res = self.store.isUnchanged(self.file)
- self.failUnless(res == None)
+ self.failUnless(res is None)
def test_expiry(self):
- res = self.store.expiredFiles(1)
+ res = self.store.expiredHashes(1)
self.failUnlessEqual(len(res.keys()), 0)
sleep(2)
- res = self.store.expiredFiles(1)
+ res = self.store.expiredHashes(1)
self.failUnlessEqual(len(res.keys()), 1)
self.failUnlessEqual(res.keys()[0], self.hash)
- self.failUnlessEqual(len(res[self.hash]), 1)
- res = self.store.refreshFile(self.file)
- self.failUnless(res)
- res = self.store.expiredFiles(1)
+ self.store.refreshHash(self.hash)
+ res = self.store.expiredHashes(1)
self.failUnlessEqual(len(res.keys()), 0)
def build_dirs(self):
file.touch()
self.store.storeFile(file, self.hash)
+ def test_multipleHashes(self):
+ self.build_dirs()
+ res = self.store.expiredHashes(1)
+ self.failUnlessEqual(len(res.keys()), 0)
+ res = self.store.lookupHash(self.hash)
+ self.failUnless(res)
+ self.failUnlessEqual(len(res), 4)
+ self.failUnlessEqual(res[0]['refreshed'], res[1]['refreshed'])
+ self.failUnlessEqual(res[0]['refreshed'], res[2]['refreshed'])
+ self.failUnlessEqual(res[0]['refreshed'], res[3]['refreshed'])
+ sleep(2)
+ res = self.store.expiredHashes(1)
+ self.failUnlessEqual(len(res.keys()), 1)
+ self.failUnlessEqual(res.keys()[0], self.hash)
+ self.store.refreshHash(self.hash)
+ res = self.store.expiredHashes(1)
+ self.failUnlessEqual(len(res.keys()), 0)
+
def test_removeUntracked(self):
self.build_dirs()
res = self.store.removeUntrackedFiles(self.dirs)
self.directory.remove()
self.store.close()
self.db.remove()
+
projects / quix0rs-apt-p2p.git / blobdiff