add metadata

cmd/pi64-build/install.go

@@ -6,8 +6,10 @@ import (
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"time"
 
 	"github.com/bamarni/pi64/pkg/multistrap"
+	"github.com/bamarni/pi64/pkg/pi64"
 	"github.com/bamarni/pi64/pkg/util"
 )
 
@@ -131,6 +133,14 @@ iface wlan0 inet manual
 		return err
 	}
 
+	fmt.Fprintln(os.Stderr, "   Writing metadata...")
+	metadata := pi64.Metadata{
+		Version: time.Now().Format("2006-01-02"),
+	}
+	if err := pi64.WriteMetadata(metadata); err != nil {
+		return err
+	}
+
 	return os.Remove("/usr/bin/qemu-aarch64-static")
 
 }

cmd/pi64-update/main.go

@@ -122,7 +122,7 @@ func run() int {
 		return 0
 	}
 
-	releaseEndpoint := "https://github.com/bamarni/pi64-kernel/releases/download/" + path.Base(latestRelease.String())
+	releaseEndpoint := "https://github.com/bamarni/pi64-kernel/releases/download/" + latestVersion
 
 	fmt.Fprintf(os.Stderr, "Downloading '%s' release.\n", latestRelease)
 
@@ -159,6 +159,11 @@ func run() int {
 		return 1
 	}
 
+	metadata.KernelVersion = latestVersion
+	if err := pi64.WriteMetadata(metadata); err != nil {
+		fmt.Fprintln(os.Stderr, "Couldn't write metadata : "+err.Error())
+	}
+
 	fmt.Fprintln(os.Stderr, "Your kernel has been updated! You'll have to reboot for this to take effect.")
 	return 0
 }

pkg/pi64/metadata.go

@@ -24,7 +24,7 @@ func ReadMetadata() (Metadata, error) {
 }
 
 func WriteMetadata(metadata Metadata) error {
-	file, err := os.OpenFile(metadataPath, os.O_WRONLY|os.O_TRUNC, 644)
+	file, err := os.OpenFile(metadataPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 644)
 	if err != nil {
 		return err
 	}