refactor: extract release_and_deploy calls to a plugin trigger

Better would be to separate the release and deploy aspects into distinct triggers - as well as have it release a specific image - but this is a good first pass.

docs/development/plugin-triggers.md

@@ -1654,6 +1654,22 @@ fi
 plugn trigger receive-app $APP $newrev
 ```
 
+### `release-and-deploy`
+
+- Description: Triggers a release of the image tag and a subsequent deploy
+- Invoked by:
+- Arguments: `$APP $IMAGE_TAG`
+- Example:
+
+```shell
+#!/usr/bin/env bash
+
+set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+APP="$1";
+
+# TODO
+```
+
 ### `report`
 
 - Description: Allows you to report on any custom configuration in use by your application

plugins/20_events/release-and-deploy

@@ -0,0 +1 @@
+hook

plugins/common/functions

@@ -634,7 +634,7 @@ dokku_receive() {
   dokku_log_info1 "Building $APP from $IMAGE_SOURCE_TYPE..."
   DOKKU_QUIET_OUTPUT=1 config_set --no-restart "$APP" DOKKU_APP_TYPE="$IMAGE_SOURCE_TYPE"
   dokku_build "$APP" "$IMAGE_SOURCE_TYPE" "$TMP_WORK_DIR"
-  release_and_deploy "$APP"
+  plugn trigger release-and-deploy "$APP"
 }
 
 docker_cleanup() {

plugins/common/release-and-deploy

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+release_and_deploy "$@"

plugins/ps/functions

@@ -158,7 +158,7 @@ ps_start() {
     fi
 
     if [[ "$RUNNING" != "true" ]]; then
-      release_and_deploy "$APP" "$IMAGE_TAG"
+      plugn trigger release-and-deploy "$APP" "$IMAGE_TAG"
     else
       dokku_log_warn "App $APP already running"
     fi
@@ -196,7 +196,7 @@ ps_restart() {
   local IMAGE_TAG=$(get_running_image_tag "$APP")
 
   if (is_deployed "$APP"); then
-    release_and_deploy "$APP" "$IMAGE_TAG"
+    plugn trigger release-and-deploy "$APP" "$IMAGE_TAG"
   else
     dokku_log_warn "App $APP has not been deployed"
   fi
@@ -235,7 +235,7 @@ ps_scale() {
   else
     if [[ "$(fn-ps-can-scale "$APP")" == "true" ]]; then
       set_scale "$APP" "$@"
-      release_and_deploy "$APP" "$IMAGE_TAG"
+      plugn trigger release-and-deploy "$APP" "$IMAGE_TAG"
     else
       dokku_log_fail "App contains DOKKU_SCALE file and cannot be manually scaled"
     fi

plugins/tags/subcommands/deploy

@@ -14,7 +14,7 @@ cmd-tags-deploy() {
 
   local IMAGE="$(get_app_image_name "$APP" "$IMAGE_TAG")"
   verify_image "$IMAGE" || return 1
-  release_and_deploy "$APP" "$IMAGE_TAG"
+  plugn trigger release-and-deploy "$APP" "$IMAGE_TAG"
 
   if [[ "$IMAGE_TAG" != "latest" ]]; then
     local DOKKU_SCHEDULER="$(get_app_scheduler "$APP")"