Added a SWANK server

4 files changed, 31 insertions, 4 deletions

diff --git a/README.md b/README.md
index 76b3e5e..2420d5d 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,12 @@
 
 A shitty small telegram bot written in common lisp.
 
+When running in a debuggy environment, consider
+``` common-lisp
+(setf ukkoclot::*in-prod* nil)
+(log:config :debug)
+```
+
 # Licensing
 
 European Union Public Licence, version 1.2.
diff --git a/config.default.lisp b/config.default.lisp
index 39b80c8..ac519ae 100644
--- a/config.default.lisp
+++ b/config.default.lisp
@@ -3,4 +3,5 @@
  :bot-token "123456789:ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi"
  :db-path "./data.db"
  :dev-group -1001234567890
- :owner 12345678)
+ :owner 12345678
+ :swank-port 4006)
diff --git a/src/config.lisp b/src/config.lisp
index 17c5c73..1bac762 100644
--- a/src/config.lisp
+++ b/src/config.lisp
@@ -5,7 +5,7 @@
   (:export
    :config-load :config-merge
    :config-p
-   :config-bot-name :config-bot-token :config-db-path :config-dev-group :config-owner))
+   :config-bot-name :config-bot-token :config-db-path :config-dev-group :config-owner :config-swank-port))
 (in-package :ukkoclot/config)
 
 (defmacro defconfig (&rest slots-and-types)
@@ -18,7 +18,8 @@
   :bot-token string
   :db-path string
   :dev-group integer
-  :owner integer)
+  :owner integer
+  :swank-port (integer 1 65536))
 
 (defun config-load (filename)
   (apply #'make-config (with-open-file (f filename) (read f))))
diff --git a/src/main.lisp b/src/main.lisp
index 862526b..a113ab0 100644
--- a/src/main.lisp
+++ b/src/main.lisp
@@ -5,6 +5,7 @@
   (:use :c2cl :ukkoclot/bot :ukkoclot/config :ukkoclot/inline-bots :ukkoclot/tg)
   (:import-from :anaphora :acond :awhen :it)
   (:import-from :log)
+  (:import-from :swank)
   (:import-from :ukkoclot/bot :make-bot :bot-power-on :fixup-value)
   (:import-from :ukkoclot/db :with-db)
   (:import-from :ukkoclot/strings :escape-xml :is-tg-whitespace-str :starts-with :starts-with-ignore-case)
@@ -21,16 +22,34 @@
          (error (err) (report-error bot ,evt err)))
        (progn ,@body)))
 
+(defun start-swank (port)
+  (log:info "Starting a SWANK server on port ~A..." port)
+  (swank:create-server :port port :dont-close t)
+  (log:info "SWANK started.  You can connect to it by forwarding ports via SSH: `ssh -L~A:127.0.0.1:~A username@server.com'" port port)
+  (log:info "And then afterwards M-x slime-connect giving localhost and ~A" port))
+
+(defun stop-swank (port)
+  (log:info "Stopping the SWANK server on port ~A..." port)
+  (swank:stop-server port)
+  (log:info "Done"))
+
 (defun main ()
   (unwind-protect
        (let ((config (config-load #P"config.default.lisp")))
          (config-merge config #P"config.lisp")
          (log:info "Starting up ~A" (config-bot-name config))
+         (main-with-config config))
+    (log:info "Quitting!")))
+
+(defun main-with-config (config)
+  (unwind-protect
+       (progn
+         (start-swank (config-swank-port config))
          (with-db (db (config-db-path config))
            (let ((bot (make-bot config db)))
              ;; TODO: Catch fatal errors & report them
              (wrapped-main bot config))))
-    (log:info "We're done!")))
+    (stop-swank (config-swank-port config))))
 
 (defun wrapped-main (bot config)
   (when *in-prod*