From 227b2d30a8675b44918f9d9ca89b24144a938215 Mon Sep 17 00:00:00 2001 From: Shubham Saini Date: Mon, 5 Aug 2019 14:02:33 +0530 Subject: removing venv files --- .../pip/_vendor/lockfile/sqlitelockfile.py | 156 --------------------- 1 file changed, 156 deletions(-) delete mode 100644 venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/lockfile/sqlitelockfile.py (limited to 'venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/lockfile/sqlitelockfile.py') diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/lockfile/sqlitelockfile.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/lockfile/sqlitelockfile.py deleted file mode 100644 index 278dff4..0000000 --- a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_vendor/lockfile/sqlitelockfile.py +++ /dev/null @@ -1,156 +0,0 @@ -from __future__ import absolute_import, division - -import time -import os - -try: - unicode -except NameError: - unicode = str - -from . import LockBase, NotLocked, NotMyLock, LockTimeout, AlreadyLocked - - -class SQLiteLockFile(LockBase): - "Demonstrate SQL-based locking." - - testdb = None - - def __init__(self, path, threaded=True, timeout=None): - """ - >>> lock = SQLiteLockFile('somefile') - >>> lock = SQLiteLockFile('somefile', threaded=False) - """ - LockBase.__init__(self, path, threaded, timeout) - self.lock_file = unicode(self.lock_file) - self.unique_name = unicode(self.unique_name) - - if SQLiteLockFile.testdb is None: - import tempfile - _fd, testdb = tempfile.mkstemp() - os.close(_fd) - os.unlink(testdb) - del _fd, tempfile - SQLiteLockFile.testdb = testdb - - import sqlite3 - self.connection = sqlite3.connect(SQLiteLockFile.testdb) - - c = self.connection.cursor() - try: - c.execute("create table locks" - "(" - " lock_file varchar(32)," - " unique_name varchar(32)" - ")") - except sqlite3.OperationalError: - pass - else: - self.connection.commit() - import atexit - atexit.register(os.unlink, SQLiteLockFile.testdb) - - def acquire(self, timeout=None): - timeout = timeout if timeout is not None else self.timeout - end_time = time.time() - if timeout is not None and timeout > 0: - end_time += timeout - - if timeout is None: - wait = 0.1 - elif timeout <= 0: - wait = 0 - else: - wait = timeout / 10 - - cursor = self.connection.cursor() - - while True: - if not self.is_locked(): - # Not locked. Try to lock it. - cursor.execute("insert into locks" - " (lock_file, unique_name)" - " values" - " (?, ?)", - (self.lock_file, self.unique_name)) - self.connection.commit() - - # Check to see if we are the only lock holder. - cursor.execute("select * from locks" - " where unique_name = ?", - (self.unique_name,)) - rows = cursor.fetchall() - if len(rows) > 1: - # Nope. Someone else got there. Remove our lock. - cursor.execute("delete from locks" - " where unique_name = ?", - (self.unique_name,)) - self.connection.commit() - else: - # Yup. We're done, so go home. - return - else: - # Check to see if we are the only lock holder. - cursor.execute("select * from locks" - " where unique_name = ?", - (self.unique_name,)) - rows = cursor.fetchall() - if len(rows) == 1: - # We're the locker, so go home. - return - - # Maybe we should wait a bit longer. - if timeout is not None and time.time() > end_time: - if timeout > 0: - # No more waiting. - raise LockTimeout("Timeout waiting to acquire" - " lock for %s" % - self.path) - else: - # Someone else has the lock and we are impatient.. - raise AlreadyLocked("%s is already locked" % self.path) - - # Well, okay. We'll give it a bit longer. - time.sleep(wait) - - def release(self): - if not self.is_locked(): - raise NotLocked("%s is not locked" % self.path) - if not self.i_am_locking(): - raise NotMyLock("%s is locked, but not by me (by %s)" % - (self.unique_name, self._who_is_locking())) - cursor = self.connection.cursor() - cursor.execute("delete from locks" - " where unique_name = ?", - (self.unique_name,)) - self.connection.commit() - - def _who_is_locking(self): - cursor = self.connection.cursor() - cursor.execute("select unique_name from locks" - " where lock_file = ?", - (self.lock_file,)) - return cursor.fetchone()[0] - - def is_locked(self): - cursor = self.connection.cursor() - cursor.execute("select * from locks" - " where lock_file = ?", - (self.lock_file,)) - rows = cursor.fetchall() - return not not rows - - def i_am_locking(self): - cursor = self.connection.cursor() - cursor.execute("select * from locks" - " where lock_file = ?" - " and unique_name = ?", - (self.lock_file, self.unique_name)) - return not not cursor.fetchall() - - def break_lock(self): - cursor = self.connection.cursor() - cursor.execute("delete from locks" - " where lock_file = ?", - (self.lock_file,)) - self.connection.commit() -- cgit v1.2.3