From 830de323f6d3f4354ef14838e084413ef9b166d8 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson@vistahigherlearning.com>
Date: Wed, 5 Aug 2015 12:22:05 -0400
Subject: dmd: Add services for use at work.

---
 dotfiles/.dmd.d/init.scm | 65 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 64 insertions(+), 1 deletion(-)

diff --git a/dotfiles/.dmd.d/init.scm b/dotfiles/.dmd.d/init.scm
index 45d950c..1ecb844 100644
--- a/dotfiles/.dmd.d/init.scm
+++ b/dotfiles/.dmd.d/init.scm
@@ -31,7 +31,70 @@
 
 (define %home (getenv "HOME"))
 
+(define (rbenv-bin version)
+  "Return the binary path for the VERSION of Ruby managed by rbenv."
+  (string-append %home "/.rbenv/versions/" version "/bin"))
+
+(define (ruby-environment version gemset)
+  "Return the environment variables needed to run Ruby applications
+that use a specific VERSION of Ruby, whose dependencies are stored in
+GEMSET."
+  (let ((gem-home (string-append %home "/.gems/" gemset)))
+    (list (string-append "GEM_PATH=" gem-home)
+          (string-append "GEM_HOME=" gem-home)
+          (string-append "PATH=" gem-home "/bin:"
+                         (rbenv-bin version) ":"
+                         (getenv "PATH")))))
+
+(define* (rails-service name port ruby-version #:optional (requires '()))
+  "Create a service that runs the Rails application NAME located in
+DIR.  The application runs with RUBY, the file name of the necessary
+Ruby version, and listens on PORT."
+  (define gem-home
+    (string-append %home "/.gems/" name))
+
+  (make <service>
+    #:provides (list (string->symbol name))
+    #:requires requires
+    #:start (make-forkexec-constructor
+             `("passenger" "start"
+               "--address" "127.0.0.1"
+               "--port" ,port
+               "--ruby" ,(string-append (rbenv-bin ruby-version) "/ruby"))
+             #:directory (string-append %home "/Code/" name)
+             #:environment-variables (ruby-environment ruby-version name))
+    #:stop (make-kill-destructor)))
+
 (register-services
+ ;; VHL applications.
+ (rails-service "api" "3002" "1.9.3-p551")
+ (rails-service "ua" "3000" "2.1.5" '(api))
+ (rails-service "m3" "3001" "1.9.3-p551" '(api ua punjab sidekiq))
+ ;; Punjab BOSH server.
+ (let* ((punjab-home (string-append %home "/Code/vhl-bosh"))
+        (punjab-config (string-append punjab-home "/conf/development.tac")))
+   (make <service>
+     #:provides '(punjab)
+     #:requires '()
+     #:start (make-forkexec-constructor (list "twistd" "--nodaemon" "-y" punjab-config)
+                                        #:directory punjab-home)
+     #:stop (make-kill-destructor)))
+ ;; TODO: Openfire XMPP server.
+ ;; Redis
+ (make <service>
+   #:provides '(redis)
+   #:requires '()
+   #:start (make-forkexec-constructor '("redis-server"))
+   #:stop (make-kill-destructor))
+ ;; Sidekiq
+ (make <service>
+    #:provides '(sidekiq)
+    #:requires '(redis)
+    #:start (make-forkexec-constructor '("sidekiq")
+                                       #:directory (string-append %home "/Code/m3")
+                                       #:environment-variables
+                                       (ruby-environment "1.9.3-p551" "m3"))
+    #:stop (make-kill-destructor))
  ;; Emacs
  (make <service>
    #:provides '(emacs)
@@ -92,4 +155,4 @@
 (action 'dmd 'daemonize)
 
 ;; Services to start when dmd starts:
-(for-each start '(emacs xmodmap gpg-agent offlineimap sshfs mpd))
+(for-each start '(xmodmap gpg-agent offlineimap))
-- 
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