Issue #11051 has been updated by Nick Lewis.
This looks like perfectly correct behavior to me. ` has no meaning to Puppet,
and isn't an escape sequence (what would it mean? \` == \\` ?) It's
inconvenient, but needing to escape the escape character is common. But in this
case, couldn't you do
command => "/usr/bin/mysql -uroot -p${mysql_password} -e 'create database
`${dbname}`;'"
so that your backticks have no meaning to the shell? And then you don't even
need to escape those inner double quotes.
----------------------------------------
Bug #11051: Unrecognised escape sequence '\`' in file (escaped backtick in
manifest)
https://projects.puppetlabs.com/issues/11051
Author: Egon Kastelijn
Status: Investigating
Priority: Normal
Assignee:
Category:
Target version:
Affected Puppet version:
Keywords: puppet escape sequence backtick
Branch:
We are developing MySQL recipes to make Puppet create and manage databases.
In order to create a MySQL database the database-name needs to be surrounded by
backticks:
exec { "database-${dbname}":
command => "/usr/bin/mysql -uroot -p${mysql_password} -e \"create
database \`${dbname}\`;\"",
unless => "/usr/bin/mysql -uroot -p${mysql_password} -e \"show
databases\" |/bin/grep ^${dbname}$",
require => Class["mysql::server"],
}
The catalogs runs fine, and the MySQL database is nicely created on the node.
The problem is that the PuppetMaster complains about an unrecognised escape
sequence:
Sat Nov 26 07:22:54 +0100 2011 Puppet (warning): Unrecognised escape
sequence '\`' in file /etc/puppet/prod/modules/mysql/manifests/database.pp at
line 15
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