From 2a14ea0dce38b0da13cb24f5d08c01dfd7ef5009 Mon Sep 17 00:00:00 2001
From: Dmitry Kuzmenkov <dmitry@wagh.ru>
Date: Mon, 2 Nov 2015 15:46:16 +0700
Subject: [PATCH] Add version argument to display current Sentinel version

---
 sentinel      | 3 ++-
 src/args.bash | 5 ++++-
 src/env.bash  | 1 +
 src/help.bash | 2 +-
 4 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/sentinel b/sentinel
index c2222ce..be2d9f1 100755
--- a/sentinel
+++ b/sentinel
@@ -4,7 +4,8 @@ load_component "args" "helper" "sentinel"
 parse_args "$@"
 
 # Show help?
-test -n "$HELP" && source ./src/help.bash && exit 1
+test -n "$ARG_HELP" && source ./src/help.bash && exit 0
+test -n "$ARG_VERSION" && echo 'Sentinel version: '$VERSION && exit 0
 
 # Status commands
 test -n "$ARG_STATUS" && load_component "status" && display_task_status "$ARG_STATUS" && exit 0
diff --git a/src/args.bash b/src/args.bash
index 89b6572..0d3a9a9 100644
--- a/src/args.bash
+++ b/src/args.bash
@@ -54,8 +54,11 @@ parse_args() {
       --task-example)
         export TASK_EXAMPLE=1
         ;;
+      --version|-v)
+        export ARG_VERSION=1
+        ;;
       --help|-h)
-        export HELP=1
+        export ARG_HELP=1
         ;;
       *) # unknown option
         ;;
diff --git a/src/env.bash b/src/env.bash
index 39f8759..9808197 100644
--- a/src/env.bash
+++ b/src/env.bash
@@ -1,4 +1,5 @@
 #!/bin/bash
+export VERSION='0.1.0-pre'
 export CHECK_TIMEOUT=3
 export TASKS_DIR='./tasks'
 export WORK_DIR='./proc'
diff --git a/src/help.bash b/src/help.bash
index e6663b8..77e26d5 100644
--- a/src/help.bash
+++ b/src/help.bash
@@ -35,6 +35,6 @@ Gathering info about running processes:
   --status=#               Get status for # task name
 
 Other:
-
+  --version          -v    Display current Sentinel's version
   --help             -h    Display this help
 EOF