Get versioninfo from the git repository

Sets value of softwareVer during build

Makefile

@@ -1,7 +1,10 @@
+GITREV=`git describe --tags`
+LDFLAGS=-ldflags="-X 'github.com/writeas/writefreely.softwareVer=$(GITREV)'"
+
 GOCMD=go
-GOINSTALL=$(GOCMD) install
-GOBUILD=$(GOCMD) build
-GOTEST=$(GOCMD) test
+GOINSTALL=$(GOCMD) install $(LDFLAGS)
+GOBUILD=$(GOCMD) build $(LDFLAGS)
+GOTEST=$(GOCMD) test $(LDFLAGS)
 GOGET=$(GOCMD) get
 BINARY_NAME=writefreely
 

app.go

@@ -33,10 +33,12 @@ const (
 
 	serverSoftware = "WriteFreely"
 	softwareURL    = "https://writefreely.org"
-
-	softwareVer = "0.3"
 )
 
+// Software version can be set from git env using -ldflags
+var	softwareVer = "v0.3"
+
+
 var (
 	debugging bool
 
@@ -133,7 +135,7 @@ func pageForReq(app *app, r *http.Request) page.StaticPage {
 	p := page.StaticPage{
 		AppCfg:  app.cfg.App,
 		Path:    r.URL.Path,
-		Version: "v" + softwareVer,
+		Version: softwareVer,
 	}
 
 	// Add user information, if given