Begin work on the dist.sh script to create the distribution

dist.sh

+#!/bin/bash
+set -e
+
+# Get the directory where this script is. This will also resolve
+# any symlinks in the directory/script, so it will be the fully
+# resolved path.
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ] ; do SOURCE="$(readlink "$SOURCE")"; done
+DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+
+# Determine the version that we're building based on the contents
+# of packer/version.go.
+VERSION=$(grep "const Version " packer/version.go | sed -E 's/.*"(.+)"$/\1/')
+PREVERSION=$(grep "const VersionPrerelease " packer/version.go | sed -E 's/.*"(.+)"$/\1/')
+if [ ! -z $PREVERSION ]; then
+    PREVERSION="${PREVERSION}.$(date -u +%s)"
+fi
+
+echo "Version: ${VERSION} ${PREVERSION}"
+
+# This function builds whatever directory we're in...
+xc() {
+    goxc \
+        -arch="386 amd64 arm" \
+        -os="linux darwin windows freebsd openbsd" \
+        -d="${DIR}/pkg" \
+        -pv="${VERSION}" \
+        -pr="${PREVERSION}" \
+        go-install \
+        xc
+}
+
+# Build our root project
+xc
+
+# Build all the plugins
+for PLUGIN in $(find ./plugin -mindepth 1 -maxdepth 1 -type d); do
+    PLUGIN_NAME=$(basename ${PLUGIN})
+    pushd ${PLUGIN}
+    xc
+    popd
+    find ./pkg -type f -name ${PLUGIN_NAME} -execdir mv ${PLUGIN_NAME} packer-${PLUGIN_NAME} ';'
+done

packer/version.go

 package packer
 
-import "fmt"
+import (
+	"bytes"
+	"fmt"
+)
 
 // The version of packer.
-const Version = "0.1.0.dev"
+const Version = "0.1.0"
+
+// Any pre-release marker for the version. If this is "" (empty string),
+// then it means that it is a final release. Otherwise, this is the
+// pre-release marker.
+const VersionPrerelease = "dev"
 
 type versionCommand byte
 
@@ -15,7 +23,13 @@ command-line flags for this command.`
 }
 
 func (versionCommand) Run(env Environment, args []string) int {
-	env.Ui().Say(fmt.Sprintf("Packer v%v", Version))
+	var versionString bytes.Buffer
+	fmt.Fprintf(&versionString, "Packer v%s", Version)
+	if VersionPrerelease != "" {
+		fmt.Fprintf(&versionString, ".%s", VersionPrerelease)
+	}
+
+	env.Ui().Say(versionString.String())
 	return 0
 }