Here's another attempt at putting code in a groups post.
@button leo-ver-serv-start:
@language python
'''Start 'leo-ver-serv' for History Tracer plugin'''
import os
watchfiles = os.path.join(g.computeHomeDir(), '.leo/.leoRecentFiles.txt')
if os.path.exists(watchfiles):
g.es_print(f"Running: leo-ver-serv {watchfiles} 8088")
os.spawnlp(os.P_NOWAIT, 'leo-ver-serv', watchfiles, '8088')
else:
g.es_print(f"Couldn't find {watchfiles}")
'''TODO: see if can use psutils instead for better communication/monitoring
https://psutil.readthedocs.io/en/latest/#popen-class'''
@button leo-ver-serv-list
@language python
g.es_print("====", c.p.h, "====")
g.es_print("Looking for 'leo-ver-serv' processes...")
import psutil
process = [proc for proc in psutil.process_iter() if proc.name() ==
"leo-ver-serv"]
# g.es_print(f"Process: {process}") # debug
g.es_print("{:>6} {:<20} {:<10}".format('PID', 'Name', 'Status'))
for p in process:
g.es_print("{:>6} {:<20} {:<10}".format(p.pid, p.name(), p.status
()))
# g.es_print(p.open_files()) # raises AccessDenied if not run as root
#g.es_print(p.children()) # not needed, always empty (so far)
g.es_print("=" * 40)
@button leo-ver-serv-stop:
@language python
'''Gracefully shutdown any processes named 'leo-ver-serv'
Adapted from https://psutil.readthedocs.io/en/latest/#psutil.wait_procs
'''
import psutil
def on_terminate(proc):
print("process {} terminated with exit code {}".format(proc, proc.
returncode))
procs = [proc for proc in psutil.process_iter() if proc.name() ==
"leo-ver-serv"]
for p in procs:
p.terminate()
gone, alive = psutil.wait_procs(procs, timeout=3, callback=on_terminate)
for p in alive:
p.kill()
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