Resource Functions

functions/resource.sh contains functions that coordinate resource execution. These functions should only be used when building resources.

waffles.resource.check_dependencies

This function takes an array of commands that the resource is dependent upon. It then checks if those commands exist:

# Check if all dependencies are installed
local _wrd=("apt-add-repository" "apt-get" "sed")
if ! waffles.resource.check_dependencies "${_wrd[@]}" ; then
  return 2
fi

waffles.resource.process

This function does several things:

• Calls waffles.resource.read, which in turn calls calling_waffles.resource.read.
• Compares the resource state versus the state that the resource has been requested to be in.
• Depending on the results of the above, calls waffles.resource.x, which in turn calls calling_waffles.resource.x.

This function requires two arguments:

• $1: The resource type (apt.pkg)
• $2: The resource name (apache2)

waffles.resource.read

Calls resource_type.read. May also perform pre and post actions.

waffles.resource.create

Calls resource_type.create.

Also flags that a resource has changed and increments the amount of total changes made throughout the Waffles run.

waffles.resource.update

Calls resource_type.update.

Also flags that a resource has changed and increments the amount of total changes made throughout the Waffles run.

waffles.resource.delete

Calls resource_type.delete.

Also flags that a resource has changed and increments the amount of total changes made throughout the Waffles run.