add new --wait parameter for consul-template

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

cdist/conf/type/__consul_template_template/man.rst

@@ -36,6 +36,14 @@ source-file
 state
    if this template is 'present' or 'absent'. Defaults to 'present'.
 
+wait
+   The `minimum(:maximum)` time to wait before rendering a new template to
+   disk and triggering a command, separated by a colon (`:`). If the optional
+   maximum value is omitted, it is assumed to be 4x the required minimum value.
+   This is a numeric time with a unit suffix ("5s"). There is no default value.
+   The wait value for a template takes precedence over any globally-configured
+   wait.
+
 
 EXAMPLES
 --------
@@ -51,6 +59,7 @@ EXAMPLES
 
     # upload a local file to the target and configure it
     __consul_template_template nginx \
+       --wait '2s:6s' \
        --source-file "$__manifest/files/nginx.ctmpl" \
        --destination /etc/nginx/nginx.conf \
        --command 'service nginx restart'
@@ -65,5 +74,5 @@ SEE ALSO
 
 COPYING
 -------
-Copyright \(C) 2015 Steven Armstrong. Free use of this software is
+Copyright \(C) 2015-2016 Steven Armstrong. Free use of this software is
 granted under the terms of the GNU General Public License version 3 (GPLv3).

cdist/conf/type/__consul_template_template/manifest

@@ -55,7 +55,7 @@ for param in $(ls "$__object/parameter/"); do
          printf '   source = "%s"\n' "$destination"
 
       ;;
-      source|destination|command)
+      source|destination|command|wait)
          printf '   %s = "%s"\n' "$param" "$(cat "$__object/parameter/$param")"
       ;;
       *)

cdist/conf/type/__consul_template_template/parameter/optional

@@ -2,3 +2,4 @@ command
 source
 source-file
 state
+wait