tailscaleroot: panic if tailscale_go build tag but Go toolchain mismatch

Fixes #13527

Change-Id: I05921969a84a303b60d1b3b9227aff9865662831
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2024-10-06 12:12:44 -07:00
committed by Brad Fitzpatrick
parent c48cc08de2
commit 1005cbc1e4
3 changed files with 45 additions and 10 deletions

View File

@ -4,7 +4,10 @@
// Package tailscaleroot embeds VERSION.txt into the binary.
package tailscaleroot
import _ "embed"
import (
_ "embed"
"runtime/debug"
)
// VersionDotTxt is the contents of VERSION.txt. Despite the tempting filename,
// this does not necessarily contain the accurate version number of the build, which
@ -22,3 +25,16 @@ var AlpineDockerTag string
//
//go:embed go.toolchain.rev
var GoToolchainRev string
func tailscaleToolchainRev() (gitHash string, ok bool) {
bi, ok := debug.ReadBuildInfo()
if !ok {
return "", false
}
for _, s := range bi.Settings {
if s.Key == "tailscale.toolchain.rev" {
return s.Value, true
}
}
return "", false
}