Disable examples by default

This, in addition previous commits, resolves #68

.ghcid

@@ -1 +1 @@
---warnings -T Ema.Example.Ex03_Clock.main 
+--warnings -c "cabal repl ema -f with-examples" -T Ema.Example.Ex03_Clock.main 

CHANGELOG.md

@@ -3,11 +3,13 @@
 ## Unreleased
 
 - Websocket API: Add `ema.switchRoute` to switch to other routes in live server.
-- Helpers
-  - `Ema.Helpers.PathTree` moved to separate package *pathtree*.
-  - `Ema.Helpers.FileSystem` moved to separate package *unionmount*.
-  - `Ema.Helpers.Markdown` moved to separate package *commonmark-simple*.
-  - `Ema.Helpers.Blaze` is no more. See `ema-template` if you need a ready made template using blaze HTML and TailwindCSS.
+- Smaller core: remove helpers and examples (examples can be enabled by a flag)
+  - Helpers
+    - `Ema.Helpers.PathTree` moved to separate package *pathtree*.
+    - `Ema.Helpers.FileSystem` moved to separate package *unionmount*.
+    - `Ema.Helpers.Markdown` moved to separate package *commonmark-simple*.
+    - `Ema.Helpers.Blaze` is no more. See `ema-template` if you need a ready made template using blaze HTML and TailwindCSS.
+  - Examples `with-examples` cabal flag is made False by default.
 
 ## 0.4.0.0 -- 2022-01-19
 

ema.cabal

@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               ema
-version:            0.5.4.0
+version:            0.5.4.1
 license:            AGPL-3.0-only
 copyright:          2021 Sridhar Ratnakumar
 maintainer:         srid@srid.ca
@@ -22,7 +22,7 @@ extra-source-files:
 
 flag with-examples
   description: Include examples and their dependencies
-  default:     True
+  default:     False
 
 library
   -- Modules included in this executable, other than Main.
@@ -51,7 +51,6 @@ library
     , relude                  >=0.7      && <1.0
     , text
     , unicode-transforms
-    , unionmount
     , unliftio
     , uri-encode
     , wai

flake.nix

@@ -39,7 +39,6 @@
             withHoogle = false;
             overrides = self: super: with pkgs.haskell.lib; {
               # lvar = self.callCabal2nix "lvar" inputs.lvar { };
-              # unionmount = self.callCabal2nix "unionmount" inputs.unionmount { };
             };
             modifier = drv:
               pkgs.haskell.lib.addBuildTools drv