Update the -v build rev hash every build.

Punts and uses the existing Rake stuff for now. Soon the rest of this will be
migrated to daedalus.

Rakefile

@@ -33,7 +33,7 @@ end
 require config_rb
 BUILD_CONFIG = Rubinius::BUILD_CONFIG
 
-unless BUILD_CONFIG[:config_version] == 32
+unless BUILD_CONFIG[:config_version] == 33
   STDERR.puts "Your configuration is outdated, please run ./configure first"
   exit 1
 end

configure

@@ -88,13 +88,7 @@ class Configure
     @libversion = "1.2"
     @version = "#{@libversion}.3dev"
     @release_date = "yyyy-mm-dd"
-    @config_version = 32
-
-    if !ENV['RELEASE'] and File.directory?(root + "/.git")
-      @buildrev = `git rev-list --all | head -n1`.chomp
-    else
-      @buildrev = "release"
-    end
+    @config_version = 33
 
     # TODO: add conditionals for platforms
     if RbConfig::CONFIG["build_os"] =~ /darwin/
@@ -868,7 +862,6 @@ end
 #define RBX_VENDOR_PATH   "#{@vendordir}"
 #define RBX_VERSION       "#{@version}"
 #define RBX_LIB_VERSION   "#{@libversion}"
-#define RBX_BUILD_REV     "#{@buildrev}"
 #define RBX_LDSHARED      "#{@ldshared}"
 #define RBX_RELEASE_DATE  "#{@release_date}"
 #define RBX_SIZEOF_LONG   #{@sizeof_long}

rakelib/vm.rake

@@ -28,6 +28,8 @@ TYPE_GEN    = %w[ vm/gen/includes.hpp
                   vm/gen/primitives_declare.hpp
                   vm/gen/primitives_glue.gen.cpp ]
 
+GENERATED = %w[ vm/gen/revision.h ] + TYPE_GEN + INSN_GEN
+
 # Files are in order based on dependencies. For example,
 # CompactLookupTable inherits from Tuple, so the header
 # for compactlookuptable.hpp has to come after tuple.hpp
@@ -149,14 +151,28 @@ end
 files TYPE_GEN, field_extract_headers + %w[vm/codegen/field_extract.rb] + [:run_field_extract] do
 end
 
+task 'vm/gen/revision.h' do |t|
+  git_dir = File.expand_path "../../.git", __FILE__
+
+  if !ENV['RELEASE'] and File.directory? git_dir
+    buildrev = `git rev-list --max-count=1 --all`.chomp
+  else
+    buildrev = "release"
+  end
+
+  File.open t.name, "wb" do |f|
+    f.puts %[#define RBX_BUILD_REV     "#{buildrev}"]
+  end
+end
+
 require 'projects/daedalus/daedalus'
 blueprint = Daedalus.load "rakelib/blueprint.rb"
 
-task 'vm/vm' => TYPE_GEN + INSN_GEN do
+task 'vm/vm' => GENERATED do
   blueprint.build "vm/vm"
 end
 
-task 'vm/test/runner' => TYPE_GEN + INSN_GEN do
+task 'vm/test/runner' => GENERATED do
   blueprint.build "vm/test/runner"
 end
 
@@ -238,8 +254,7 @@ namespace :vm do
   desc "Clean up vm build files"
   task :clean do
     files = FileList[
-      TYPE_GEN,
-      INSN_GEN,
+      GENERATED,
       'vm/gen/*',
       'vm/test/runner',
       'vm/test/runner.cpp',

vm/ontology.cpp

@@ -44,6 +44,7 @@
 
 #include "configuration.hpp"
 #include "config.h"
+#include "revision.h"
 
 #define SPECIAL_CLASS_MASK 0x1f
 #define SPECIAL_CLASS_SIZE 32

vm/revision.h

@@ -0,0 +1 @@
+#include "vm/gen/revision.h"