From abd187035c3b3b2fc6f0916b507670880bbac9ec Mon Sep 17 00:00:00 2001
From: Nicolas Mattia <nicolas@nmattia.com>
Date: Sun, 26 Aug 2018 19:28:52 +0300
Subject: [PATCH 1/2] Test that utf-8 files can be parsed

---
 tests/utf-8/Main.hs      | 12 ++++++++++++
 tests/utf-8/golden       |  1 +
 tests/utf-8/package.yaml |  4 ++++
 tests/utf-8/snack.nix    |  3 +++
 tests/utf-8/test         | 20 ++++++++++++++++++++
 5 files changed, 40 insertions(+)
 create mode 100644 tests/utf-8/Main.hs
 create mode 100644 tests/utf-8/golden
 create mode 100644 tests/utf-8/package.yaml
 create mode 100644 tests/utf-8/snack.nix
 create mode 100755 tests/utf-8/test

diff --git a/tests/utf-8/Main.hs b/tests/utf-8/Main.hs
new file mode 100644
index 0000000..4bc1cec
--- /dev/null
+++ b/tests/utf-8/Main.hs
@@ -0,0 +1,12 @@
+{-|
+Copyright:
+    © 2018 Nicolas Mattia
+-}
+module Main
+    ( main
+    ) where
+
+import Numeric.Natural (Natural)
+
+main :: IO ()
+main = putStrLn "hello"
diff --git a/tests/utf-8/golden b/tests/utf-8/golden
new file mode 100644
index 0000000..ce01362
--- /dev/null
+++ b/tests/utf-8/golden
@@ -0,0 +1 @@
+hello
diff --git a/tests/utf-8/package.yaml b/tests/utf-8/package.yaml
new file mode 100644
index 0000000..90066c0
--- /dev/null
+++ b/tests/utf-8/package.yaml
@@ -0,0 +1,4 @@
+name: snack-strips-versions
+executable:
+    main: Main.hs
+    source-dirs: .
diff --git a/tests/utf-8/snack.nix b/tests/utf-8/snack.nix
new file mode 100644
index 0000000..3b4022a
--- /dev/null
+++ b/tests/utf-8/snack.nix
@@ -0,0 +1,3 @@
+{ main = "Main";
+  src = ./.;
+}
diff --git a/tests/utf-8/test b/tests/utf-8/test
new file mode 100755
index 0000000..7ff56f4
--- /dev/null
+++ b/tests/utf-8/test
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# vim: ft=sh sw=2 et
+
+set -euo pipefail
+
+test() {
+  $SNACK build
+  $SNACK run | diff golden -
+
+  TMP_FILE=$(mktemp)
+
+  capture_io "$TMP_FILE" main | $SNACK ghci
+
+  diff golden $TMP_FILE
+  rm $TMP_FILE
+}
+
+SNACK="snack" test
+SNACK="snack -s ./snack.nix" test
+SNACK="snack --package-yaml ./package.yaml" test

From bbef676f0984c8b0ab9b5db261b2e4c486c68e4a Mon Sep 17 00:00:00 2001
From: Nicolas Mattia <nicolas@nmattia.com>
Date: Sun, 26 Aug 2018 19:29:05 +0300
Subject: [PATCH 2/2] Enable utf-8 when parsing dependencies

---
 snack-lib/modules.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/snack-lib/modules.nix b/snack-lib/modules.nix
index f3c16c6..1e3b8ad 100644
--- a/snack-lib/modules.nix
+++ b/snack-lib/modules.nix
@@ -2,6 +2,7 @@
 { lib
 , callPackage
 , runCommand
+, glibcLocales
 , haskellPackages
 }:
 
@@ -58,7 +59,10 @@ rec {
         } "ghc -package ghc ${./Imports.hs} -o $out" ;
     # XXX: this command needs ghc in the environment so that it can call "ghc
     # --print-libdir"...
-    in runCommand "dependencies-json" { buildInputs = [ ghc ]; }
+    in runCommand "dependencies-json"
+      {   buildInputs = [ ghc glibcLocales ];
+          LANG="en_US.utf-8";
+      }
 
         ''
           ${importParser} ${singleOutModulePath base modName} > $out