tailscale/tstest/integration/gen_deps.go
Brad Fitzpatrick 7d417586a8 tstest/integration: help bust cmd/go's test caching
It was caching too aggressively, as it didn't see our deps due to our
running "go install tailscaled" as a child process.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-07-07 13:14:21 -07:00

54 lines
1.3 KiB
Go

// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"os/exec"
)
func main() {
var x struct {
Imports []string
}
j, err := exec.Command("go", "list", "-json", "tailscale.com/cmd/tailscaled").Output()
if err != nil {
log.Fatal(err)
}
if err := json.Unmarshal(j, &x); err != nil {
log.Fatal(err)
}
var out bytes.Buffer
out.WriteString(`// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Code generated by gen_deps.go; DO NOT EDIT.
package integration
import (
// And depend on a bunch of tailscaled innards, for Go's test caching.
// Otherwise cmd/go never sees that we depend on these packages'
// transitive deps when we run "go install tailscaled" in a child
// process and can cache a prior success when a dependency changes.
`)
for _, dep := range x.Imports {
fmt.Fprintf(&out, "\t_ %q\n", dep)
}
fmt.Fprintf(&out, ")\n")
err = ioutil.WriteFile("tailscaled_deps_test.go", out.Bytes(), 0644)
if err != nil {
log.Fatal(err)
}
}