Merge branch '174-handle-git-branches-when-provisioning' into 'develop'

Resolve "Handle git branches when provisioning"

See merge request !185

utils/provision

@@ -26,11 +26,12 @@ LOG_LEVEL="${LOG_LEVEL:-6}" # 7 = debug -> 0 = emergency
 # opts & defaults from. The parsing is unforgiving so be precise in your syntax
 read -r -d '' usage <<-'EOF'
   -u   [arg] URL to process. Required.
-  -a   [arg] Application to install. (in the form github.com/indiehosters/wordpress)
+  -a   [arg] Application to install. (in the form github.com/indiehosters/wordpress or wordpress in REPO_MODE)
+  -t   [arg] Checkout a specific tag or branch from the application repo. default to master
   -s         Start the application right away.
   -b         Buys the associated domain name.
   -i         Configure OpenDKIM.
-  -c         Configures DNS on Namecheap.
+  -c         Configures DNS if possible.
   -d         Enables debug mode
   -h         This page
 EOF
@@ -113,9 +114,19 @@ function application () {
     warning "REPO specified, using argument as app name"
     git_url=https://${APP_REPO_URL}/${arg_a}.git
   fi
+  
+  #Define the tag/branch 
+  
+  if [ "${arg_t}" = "1" ]; then
+    warning "No tag/branch specified, Using master "
+    git_tag=master
+  else
+    git_tag=${arg_t}
+  fi
+  git clone ${git_url} -b ${arg_t} /data/domains/${arg_u} 
 
-  git clone ${git_url} /data/domains/${arg_u}
   cd /data/domains/${arg_u}
+  
   if [ -f ./scripts/install ]; then
     export URL=${arg_u}
     if [ -z ${MAIL_DOMAIN:-} ]; then
@@ -212,6 +223,8 @@ fi
 
 [ -z "${arg_u}" ]     && help      "URL is required."
 [ -z "${LOG_LEVEL}" ] && emergency "Cannot continue without LOG_LEVEL."
+# tags/branch for modules 
+[ -z "${arg_t}" ]     && arg_t=master
 
 
 ### Runtime