Re: [PATCH v3 1/5] Add is_installed method

[Jan Tluka]

Tue, Aug 25, 2015 at 04:53:34PM CEST, jprochaz(a)redhat.com wrote:
> This method is used for detecting if program is present in $PATH
>
> Signed-off-by: Jiri Prochazka <jprochaz(a)redhat.com&gt;
> ---
>  lnst/Common/Utils.py | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/lnst/Common/Utils.py b/lnst/Common/Utils.py
> index b42fc86..22d2925 100644
> --- a/lnst/Common/Utils.py
> +++ b/lnst/Common/Utils.py
> @@ -278,3 +278,15 @@ def deprecated(func):
>                          % (func.__name__, self.__class__.__name__))
>          return func(self, *args, **kwargs)
>      return log
> +
> +def is_installed(program):
> +    """
> +    Returns True if program is detected by which, False otherwise
> +    """
> +    cmd = "which %s" % program
> +    try:
> +        subprocess.check_call(cmd, shell=True, stdout=subprocess.PIPE,
> +                              stderr=subprocess.PIPE)
> +        return True
> +    except subprocess.CalledProcessError:
> +        return False
> -- 
> 2.4.3
>
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ack

Acked-by: Jan Tluka <jtluka(a)redhat.com&gt;