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From "Hendy Irawan (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KARAF-1226) Karaf Client cannot run a script
Date Sat, 25 Feb 2012 16:17:48 GMT

     [ https://issues.apache.org/jira/browse/KARAF-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Hendy Irawan updated KARAF-1226:

    Attachment: KARAF-1226-main.patch

Please apply this patch too.

With this one, the main launcher ("bin/karaf") also gets support for -b/--batch and -c/--command
support (see my comments above).

These switches should be documented somewhere.

Also, I added a configuration property "karaf.args.parse" that is by default enabled. To preserve
old behavior (ignoring cmdline args) can also make the default as false. However IMHO it's
better to make this default to true (for consistency with bin/client and bin/shell), and modify
downstream (i.e. ServiceMix) as appropriate.

I set the "stabilizing" timeout as 100ms. I can't find a better way to wait for the OSGi runtime
to "stabilize". Or perhaps the timeout can be configured in properties?
> Karaf Client cannot run a script
> --------------------------------
>                 Key: KARAF-1226
>                 URL: https://issues.apache.org/jira/browse/KARAF-1226
>             Project: Karaf
>          Issue Type: Bug
>          Components: karaf-shell
>    Affects Versions: 2.2.5
>         Environment: Ubuntu 11.10 64-bit, OpenJDK 6
>            Reporter: Hendy Irawan
>            Assignee: Jean-Baptiste Onofré
>         Attachments: KARAF-1226-client.patch, KARAF-1226-main.patch, KARAF-1226-shell.patch
> Example usage:
> {code}
> echo osgi:ls | bin/client
> {code}
> or:
> {code}
> bin/client < commands.karafsh
> {code}
> or redirecting stdout to file:
> {code}
> echo osgi:ls | bin/client > bundles.txt
> {code}
> Expected outcome:
> 1. Output of the command printed to stdout
> 2. Banners etc. (if any) printed to stderr
> 3. Shell prompt should not be output at all
> 4. The client exits immediately
> Actual behavior:
> 1. All output including banners and the shell prompt are printed to stdout (only)
> 2. The client then hangs but still using around 20% CPU usage. It's not possible to Ctrl+C,
and need to kill the process.
> GNU tools (like bash) tend to detect the presence of an input stream, to differ between
interactive mode and a batch mode.
> If this is not possible, can also add a switch e.g. "--batch" or "-b" for "Batch mode".
> Note that the karaf "bin/shell" script already handles this quite nicely... by not hanging
after executing commands, and exits properly.
> BTW this should also be possible to do on karaf launcher itself (i.e. start Karaf, execute
command(s), then immediately shutdown the runtime).

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