From 64f6955508b8ef11a970c325e251a9d5216548d2 Mon Sep 17 00:00:00 2001
From: Akira Komamura <akira.komamura@gmail.com>
Date: Wed, 9 Jun 2021 01:24:05 +0900
Subject: [PATCH] Add flake.nix

---
 flake.lock | 42 ++++++++++++++++++++++++++++++++++++++++++
 flake.nix  | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..255d040
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1622445595,
+        "narHash": "sha256-m+JRe6Wc5OZ/mKw2bB3+Tl0ZbtyxxxfnAWln8Q5qs+Y=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7d706970d94bc5559077eb1a6600afddcd25a7c8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1623167903,
+        "narHash": "sha256-m1JHo/kfsA+wcbZeYa0Ri96MSUZ3pR5PSLFfOq3+OME=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f2f583eceb7b6ab9a7f0c9b14dfaac9d0b059a10",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..5959c90
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,37 @@
+{
+  description = "Translates a plain text description of a relational database schema to a graphical entity-relationship diagram";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+
+        haskellPackages = pkgs.haskellPackages;
+
+        jailbreakUnbreak = pkg:
+          pkgs.haskell.lib.doJailbreak (pkg.overrideAttrs (_: { meta = { }; }));
+
+        packageName = "erd";
+      in {
+        packages.${packageName} =
+          haskellPackages.callCabal2nix packageName self rec {
+            # Dependency overrides go here
+          };
+
+        defaultPackage = self.packages.${system}.${packageName};
+
+        devShell = pkgs.mkShell {
+          buildInputs = with haskellPackages; [
+            haskell-language-server
+            ghcid
+            cabal-install
+          ];
+          inputsFrom = builtins.attrValues self.packages.${system};
+        };
+      });
+}