From 26be34feb71e4f14613f32e571f13b3f0333cd75 Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Fri, 12 Jan 2018 12:26:34 -0500
Subject: [PATCH] feat: allow checking if a service exists

---
 README.md          |  1 +
 subcommands/exists | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100755 subcommands/exists

diff --git a/README.md b/README.md
index 12e14e9..e7dcb02 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@ mysql:connect <name>           Connect via mysql to a mysql service
 mysql:create <name>            Create a mysql service with environment variables
 mysql:destroy <name>           Delete the service, delete the data and stop its container if there are no links left
 mysql:enter <name> [command]   Enter or run a command in a running mysql service container
+mysql:exists <service>         Check if the MySQL service exists
 mysql:export <name> > <file>   Export a dump of the mysql service database
 mysql:expose <name> [port]     Expose a mysql service on custom port if provided (random port otherwise)
 mysql:import <name> < <file>   Import a dump into the mysql service database
diff --git a/subcommands/exists b/subcommands/exists
new file mode 100755
index 0000000..93b6a99
--- /dev/null
+++ b/subcommands/exists
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/config"
+set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_BASE_PATH/common/functions"
+source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
+
+service-exists-cmd() {
+  #E here we check if the lolipop $PLUGIN_COMMAND_PREFIX service exists.
+  #E dokku $PLUGIN_COMMAND_PREFIX:exists lolipop
+  #A service, service to run command against
+  declare desc="check if the $PLUGIN_SERVICE service exists"
+  local cmd="$PLUGIN_COMMAND_PREFIX:exists" argv=("$@"); [[ ${argv[0]} == "$cmd" ]] && shift 1
+  declare SERVICE="$1"
+
+  [[ -z "$SERVICE" ]] && dokku_log_fail "Please specify a name for the service"
+  verify_service_name "$SERVICE"
+  dokku_log_info1 "Service $SERVICE exists"
+}
+
+service-exists-cmd "$@"