DSL-rule OH3: Failed to execute commandline

Setup, Configuration and Use Scripts & Rules
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1

While migrating old OH2 DSL-rules to OH3 I encountered the following:

exec.whitelist:

python /etc/openhab/scripts/webcamS.py

script:

...
	var String cmd = "python /etc/openhab/scripts/webcamS.py"
	var String bilderjson = executeCommandLine(Duration.ofSeconds(120), cmd, wetterpic, tempout, tempin, pressure, "0")
...

The logs say:

2021-05-25 18:09:45.808 [DEBUG] [c.internal.ExecWhitelistWatchService] - Updated command whitelist: [python /etc/openhab/scripts/webcamS.py, speedtest -f json]
2021-05-25 18:09:51.400 [WARN ] [rg.openhab.core.io.net.exec.ExecUtil] - Failed to execute commandLine '[python /etc/openhab/scripts/webcamS.py, mostlysunny, 12.14, 12.36, 87.01, 0]'

What did I miss?
sudo -u openhab python /etc/openhab/scripts/webcamS.py works.

2

OH3 syntax of executeCommandLine expects all arguments to be separated by commas.
That means you need to use python and /etc/openhab/scripts/webcamS.py as separate parameter.
python itself would not be required if shebang in the header of the script would be used.

1 Like
3

Whitelist is not used for executeCommandLine()

1 Like
4

Thanks a lot! yeah, shebang is in the script - old habit. works now!

Ah, good to know!