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More robust fix for auto reload when file is temporarily unavailable

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This commit is contained in:
Kovid Goyal 2015-10-16 12:34:48 +05:30
parent da7ffcaf82
commit ba95bf86b9
1 changed files with 9 additions and 4 deletions
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13
src/calibre/srv/auto_reload.py
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@ -6,7 +6,7 @@ from __future__ import (unicode_literals, division, absolute_import,
__license__ = 'GPL v3' __license__ = 'GPL v3'
__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>' __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
import os, sys, subprocess, signal, time import os, sys, subprocess, signal, time, errno
from threading import Thread from threading import Thread
from calibre.constants import islinux, iswindows, isosx from calibre.constants import islinux, iswindows, isosx
@ -216,9 +216,14 @@ class Worker(object):
self.clean_kill() self.clean_kill()
try: try:
compile_srv() compile_srv()
except EnvironmentError: except EnvironmentError as e:
time.sleep(0.1) # Happens if the editor deletes and replaces a file being edited
compile_srv() # Happens if the editor deletes and replaces a file being edited if e.errno != errno.ENOENT or not getattr(e, 'filename', False):
raise
st = time.time()
while not os.path.exists(e.filename) and time.time() - st < 3:
time.sleep(0.01)
compile_srv()
self.p = subprocess.Popen(self.cmd, creationflags=getattr(subprocess, 'CREATE_NEW_PROCESS_GROUP', 0)) self.p = subprocess.Popen(self.cmd, creationflags=getattr(subprocess, 'CREATE_NEW_PROCESS_GROUP', 0))
def auto_reload(log, dirs=frozenset(), cmd=None, add_default_dirs=True): def auto_reload(log, dirs=frozenset(), cmd=None, add_default_dirs=True):