Add footer with git revision

web/html/home.html

@@ -86,4 +86,6 @@
 </form>
 </details>
 </nav>
+
+<footer class="center">rev {{ .Rev }}</footer>
 {{- end }}

web/html/html.go

@@ -106,6 +106,7 @@ type SourceData struct {
 type HomeData struct {
 	Channels []ChannelData
 	Sources  []SourceData
+	Rev      string
 }
 
 func Home(writer io.Writer, data HomeData) {

web/html/intake.css

@@ -101,3 +101,6 @@ span.error-message {
 #envvars input {
 	font-family: monospace;
 }
+footer {
+	opacity: 0.5
+}

web/root.go

@@ -2,6 +2,7 @@ package web
 
 import (
 	"net/http"
+	"runtime/debug"
 	"sort"
 
 	"github.com/Jaculabilis/intake/core"
@@ -37,9 +38,22 @@ func (env *Env) getRoot(writer http.ResponseWriter, req *http.Request) {
 		channelData = append(channelData, html.ChannelData{Name: name, Active: channels[name]})
 	}
 
+	rev := ""
+	if info, ok := debug.ReadBuildInfo(); ok {
+		for _, setting := range info.Settings {
+			if setting.Key == "vcs.revision" {
+				rev = setting.Value + rev
+			}
+			if setting.Key == "vcs.modified" {
+				rev = rev + "-dirty"
+			}
+		}
+	}
+
 	data := html.HomeData{
 		Channels: channelData,
 		Sources:  sourceData,
+		Rev:      rev,
 	}
 	html.Home(writer, data)
 }