added flgas for conditional compilation of available backends

package.yaml

@@ -19,6 +19,24 @@ extra-source-files:
 # common to point users to the README.md file.
 description:         Please see the README on GitHub at <https://github.com/githubuser/tickLeisteServer#readme>
 
+flags:
+  http:
+    description: Build with http support
+    manual: true
+    default: true
+  https:
+    description: Build with https support
+    manual: true
+    default: false
+  fast-cgi:
+    description: Build with fastcgi support
+    manual: true
+    default: false
+  cgi:
+    description: Build with cgi support
+    manual: true
+    default: false
+
 dependencies:
 - base >= 4.7 && < 5
 - tickLeiste
@@ -31,6 +49,10 @@ dependencies:
 - containers
 - wai
 - wai-websockets
+
+when:
+  - condition: flag(http)
+    dependencies:
     - http-types
     - warp
 

tickLeisteServer.cabal

@@ -23,6 +23,26 @@ source-repository head
   type: git
   location: https://github.com/githubuser/tickLeisteServer
 
+flag cgi
+  description: Build with cgi support
+  manual: True
+  default: False
+
+flag fast-cgi
+  description: Build with fastcgi support
+  manual: True
+  default: False
+
+flag http
+  description: Build with http support
+  manual: True
+  default: True
+
+flag https
+  description: Build with https support
+  manual: True
+  default: False
+
 executable tickLeisteServer
   main-is: Main.hs
   other-modules:
@@ -39,15 +59,17 @@ executable tickLeisteServer
     , base >=4.7 && <5
     , bytestring
     , containers
-    , http-types
     , text
     , tickLeiste
     , tickLeiste-aeson
     , uuid
     , wai
     , wai-websockets
-    , warp
     , websockets
+  if flag(http)
+    build-depends:
+        http-types
+      , warp
   default-language: Haskell2010
 
 test-suite tickLeisteServer-test
@@ -65,7 +87,6 @@ test-suite tickLeisteServer-test
     , base >=4.7 && <5
     , bytestring
     , containers
-    , http-types
     , text
     , tickLeiste
     , tickLeiste-aeson
@@ -73,6 +94,9 @@ test-suite tickLeisteServer-test
     , uuid
     , wai
     , wai-websockets
-    , warp
     , websockets
+  if flag(http)
+    build-depends:
+        http-types
+      , warp
   default-language: Haskell2010