Defining classes based on regexp comparison

[tentaculartentacle]

I suspect I'm approaching this the wrong way entirely:

vars:

 "myappversion"  string => execresult("/opt/myapp/bin/runme --version","noshell");

classes:

  "myapp_compliant" expression => strcmp("$(myappversion)","1.2.3-fix5");

  "myapp_fixable" expression => strcmp("$(myappversion)","1.2.3-.*"); ### doesnt work obviously

  "myapp_unfixable" should be defined if !myapp_compliant AND !myapp_fixable

Any tips on how to do achieve what I'm trying to do in the last two lines?

[Neil Watson]

On Thu, Nov 20, 2014 at 01:26:30AM -0800, tentaculartentacle wrote:
> strcmp("$(myappversion)","1.2.3-fix5");
>   "myapp_fixable" expression => strcmp("$(myappversion)","1.2.3-.*");
> ### doesnt work obviously

I'm not clear on your intentions, but strcmp requires strings, not
expressions. See regcmp for expressions.

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Neil H Watson
Sr. Partner, Architecture and Infrastructure
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[Ted Zlatanov]

On Thu, 20 Nov 2014 01:26:30 -0800 (PST) tentaculartentacle <fred.o...@gmail.com> wrote:

t> vars:
t> "myappversion" string => execresult("/opt/myapp/bin/runme
t> --version","noshell");
t> classes:
t> "myapp_compliant" expression => strcmp("$(myappversion)","1.2.3-fix5");
t> "myapp_fixable" expression => strcmp("$(myappversion)","1.2.3-.*");

# no need to quote var
"myapp_fixable" expression => regcmp($(myappversion), "1.2.3-.*");

t> "myapp_unfixable" should be defined if !myapp_compliant AND !myapp_fixable

# no need to quote var
"myapp_unfixable" not => regcmp($(myappversion), "1.2.3-.*");

If you did `myapp_unfixable` as `!myapp_compliant AND !myapp_fixable` then it could get
defined in an intermediate pass because the `execresult` hasn't been
evaluated. So it's better to define it only based on the contents of
the `execresult`.

Ted