From b0be8e1bbba9e832c8423785263e27baadaa185a Mon Sep 17 00:00:00 2001
From: Guillem Marpons <gmarpons@mailbox.org>
Date: Sat, 25 Dec 2021 22:42:30 +0100
Subject: [PATCH] Add file shell.nix

It installs all necessary tools for development.

It also declares a shell function calldoctor, that compares the output of asciidoctor/asciidoc-hs for a given AsciiDoc file.
---
 shell.nix | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 shell.nix

diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..2487ce9
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,33 @@
+let pkgs = import (fetchTarball path) {};
+    path = https://github.com/NixOS/nixpkgs/archive/master.tar.gz;
+in with pkgs;
+  mkShell {
+    buildInputs = [
+      asciidoctor-with-extensions
+      git
+      haskell.compiler.ghc901
+      haskellPackages.cabal-install
+      haskellPackages.pandoc
+      html-tidy
+      icdiff
+    ];
+    shellHook = ''
+      git config core.hooksPath .hooks
+
+      function calldoctor() {
+        if [[ -z "$2" ]] ; then
+          echo "calldoctor [html4|html5] FILE"
+          echo "Compares the output of asciidoctor/asciidoc-hs on AsciiDoc file FILE."
+        else
+          local FILE="$2"
+          cabal build exe:asciidoc-hs
+          icdiff <(
+              asciidoctor -s -a "sectids!" -a "showtitle" $FILE -o - 2> /dev/null | tidy 2> /dev/null
+            ) <(
+              cat $FILE | cabal exec asciidoc-hs | pandoc -f json -t $1 | tidy 2> /dev/null
+            )
+        fi
+      }
+    '';
+    LC_ALL="C.UTF-8";
+  }