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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'
__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 calibre.constants import islinux, iswindows, isosx
@ -216,9 +216,14 @@ class Worker(object):
self.clean_kill()
try:
compile_srv()
except EnvironmentError:
time.sleep(0.1)
compile_srv() # Happens if the editor deletes and replaces a file being edited
except EnvironmentError as e:
# 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))
def auto_reload(log, dirs=frozenset(), cmd=None, add_default_dirs=True):