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lightningd: multiple log-file options allow more than one log output.

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I've wanted this for a while: the ability to log to multiple places
at once.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: lightningd: `log-file` option specified multiple times opens multiple log files.
This commit is contained in:
Rusty Russell
2022-06-26 13:55:01 +09:30
parent 92f10f2c34
commit 56dde2cb77
6 changed files with 116 additions and 65 deletions
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18
tests/test_misc.py
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@@ -1475,6 +1475,24 @@ def test_logging(node_factory):
wait_for(lambda: os.path.exists(logpath))
wait_for(check_new_log)
# Multiple log files
l2 = node_factory.get_node(options={'log-file': ['logfile1', 'logfile2']}, start=False)
logpath1 = os.path.join(l2.daemon.lightning_dir, TEST_NETWORK, 'logfile1')
logpath2 = os.path.join(l2.daemon.lightning_dir, TEST_NETWORK, 'logfile2')
l2.daemon.start(wait_for_initialized=False)
wait_for(lambda: os.path.exists(logpath1))
wait_for(lambda: os.path.exists(logpath2))
wait_for(lambda: os.path.exists(os.path.join(l2.daemon.lightning_dir, TEST_NETWORK, "lightning-rpc")))
lines = subprocess.check_output(['cli/lightning-cli',
'--network={}'.format(TEST_NETWORK),
'--lightning-dir={}'
.format(l2.daemon.lightning_dir),
'-H',
'listconfigs']).decode('utf-8').splitlines()
assert 'log-file=logfile1' in lines
assert 'log-file=logfile2' in lines
@unittest.skipIf(VALGRIND,
"Valgrind sometimes fails assert on injected SEGV")