From 42ccd1bd3213f2b00dbf3f6e8fb169729226cd94 Mon Sep 17 00:00:00 2001
From: Manuel Polzhofer <manuel.polzhofer@gmail.com>
Date: Fri, 4 Oct 2019 07:33:45 +0200
Subject: [PATCH] added version to tinlake (#71)

---
 src/reception.sol        |  8 +++++++-
 src/test/reception.t.sol | 12 ++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/reception.sol b/src/reception.sol
index f55d5076..2246b8a3 100644
--- a/src/reception.sol
+++ b/src/reception.sol
@@ -45,11 +45,12 @@ contract Reception is TitleOwned {
     modifier auth { require(wards[msg.sender] == 1); _; }
 
     // --- Data ---
-
     DeskLike desk;
     ShelfLike shelf;
     PileLike pile;
 
+    bytes32 public version;
+
     constructor (address desk_, address title_, address shelf_, address pile_) TitleOwned(title_) public {
         wards[msg.sender] = 1;
         desk = DeskLike(desk_);
@@ -57,6 +58,11 @@ contract Reception is TitleOwned {
         pile = PileLike(pile_);
     }
 
+    function file(bytes32 what, bytes32 data) public auth {
+        if (what == "version") version = data;
+        else revert();
+    }
+
     // --- Reception ---
     function borrow(uint loan, address deposit) public owner(loan) {
         shelf.deposit(loan, msg.sender);
diff --git a/src/test/reception.t.sol b/src/test/reception.t.sol
index ca2c0feb..63653d96 100644
--- a/src/test/reception.t.sol
+++ b/src/test/reception.t.sol
@@ -123,6 +123,18 @@ contract ReceptionTest is DSTest {
         repay(loan, principal);
     }
 
+    function testFileVersion() public {
+        bytes32 version = keccak256("1");
+        reception.file("version",version);
+        assertEq(version, reception.version());
+    }
+
+    function testFailFileVersion() public {
+        bytes32 version = keccak256("1");
+        reception.file("wrong",version);
+        assertEq(version, reception.version());
+    }
+
     function testClose() public {
         uint loan = 1;
         uint principal = 500;