There isn't a built-in function, so I'd write a function, put it in lib/puppet/parser/functions in your module, enable pluginsync in puppet.conf (so the custom function get synced to the agents), and then use the function in the manifest.
Something as simple as: require"puppet" module Puppet::Parser::Functions newfunction(:bueller, :type => :rvalue) do |args| File.exists?(args[0]) end might work. Improve as needed. Consult: https://docs.puppetlabs.com/guides/custom_functions.html. Thanks! On Fri, Oct 10, 2014 at 12:37 PM, Juan Andres Ramirez <jandresa...@gmail.com > wrote: > One way: > > $path > > onlyif => "powershell.exe -ExecutionPolicy ByPass -command \"if (Test-Path > ${path}) { exit 1;} else { exit 0; }\"" > > if puppet get exit 0 this finish without any error, so the path exist. > > for more info go powershell console and run command get-help test-path > > > > > On Friday, October 10, 2014 4:17:04 PM UTC-3, Stella wrote: >> >> Hi all, >> >> I am using Puppet 3.6.2. I am trying to write a puppet module, which will >> replace a file with source template ONLY IF this file already exists. If >> this file doesn't exist, don't do anything. >> >> I have got it to work with the "exec" command, but that requires to use >> some command/script outside of Puppet. >> I want to find out if Puppet has any built-in function to achieve this >> purpose? >> I tried with "replace", but "replace" will create the file if the file >> doesn't exist. That's not I want. >> >> Here is the example "exec" code: >> >> exec {'command when file exists': >> command => "command to solve the problem", >> user => root, >> onlyif => "test -f /path/to/file", >> path => ['/usr/bin','/usr/sbin','/bin','/sbin'], >> notify => Notify['/path/to/file found'], >> } >> >> notify {'/path/to/file not found': } >> >> >> Thanks a lot ! >> >> -- > You received this message because you are subscribed to the Google Groups > "Puppet Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to puppet-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/puppet-users/fba2459b-d6ac-48ec-a81b-83086a26245a%40googlegroups.com > <https://groups.google.com/d/msgid/puppet-users/fba2459b-d6ac-48ec-a81b-83086a26245a%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-users/CAOzFSfHUGoWP153r2HTcznNiUeOh_AQRjPrrpQBPoHxqTcZ7ZA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
