WIP upgrade

1 files changed, 28 insertions, 0 deletions

diff --git a/cmd/client/autoupdate.go b/cmd/client/autoupdate.go
new file mode 100644
index 0000000..feb272e
--- /dev/null
+++ b/cmd/client/autoupdate.go
@@ -0,0 +1,28 @@
+package client
+
+import (
+        "context"
+        "log"
+        "os"
+)
+
+// TODO:
+// Check the Server header from the host and if the second part does not match
+// - Use HEAD, ignore 404
+// Download the latest client for this os/arch (remap GOARCH=amd64 to x86_64)
+// Re-execute the client in the same process so the latest client is used
+// Log some output to let the user know this happened
+// Verify SHA256 based on server ETag
+func upgradeAndRestartClient(ctx context.Context, version, host string) error {
+        // Download, chmod, verify, unlink original, rename old to new, exec new
+        exec, err := os.Executable()
+        if err != nil {
+                return err
+        }
+
+        // Refuse if any path segment starts with go-build.*
+
+        log.Printf("Executable is %s", exec)
+
+        return nil
+}