*: unify version numbers

Author: asymmetric

CHANGELOG.md

@@ -0,0 +1,6 @@
+# Changelog
+
+## [Unreleased]
+### Changed
+- Versions are now for the whole of dapptools, rather than per-tool.
+Accordingly, the old CHANGELOG files are superseded by this one.

VERSION

@@ -0,0 +1 @@
+1

src/seth/default.nix

@@ -3,7 +3,7 @@
 
 stdenv.mkDerivation rec {
   name = "seth-${version}";
-  version = "0.8.4";
+  version = lib.fileContents ../../VERSION;
   src = ./.;
 
   nativeBuildInputs = [makeWrapper];
@@ -18,6 +18,10 @@ stdenv.mkDerivation rec {
         else ""}
   '';
 
+  postFixup = ''
+    sed -i s/VERSION_PLACEHOLDER/${version}/ $out/libexec/seth/seth---version
+  '';
+
   meta = {
     description = "Command-line client for talking to Ethereum nodes";
     homepage = https://github.com/dapphub/dapptools/src/seth/;

src/seth/libexec/seth/seth---version

@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
-cat <<.
-seth 0.8.4
+cat <<EOF
+seth VERSION_PLACEHOLDER
 Copyright (C) 2016, 2017  Daniel Brockman <[email protected]>
 License: GNU GPL version 3 or later <https://gnu.org/licenses/gpl>.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
-.
+EOF