tailscale/cmd/printdep/printdep.go
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2023-01-27 15:36:29 -08:00

55 lines
1.4 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
// The printdep command is a build system tool for printing out information
// about dependencies.
package main
import (
"flag"
"fmt"
"log"
"runtime"
"strings"
ts "tailscale.com"
)
var (
goToolchain = flag.Bool("go", false, "print the supported Go toolchain git hash (a github.com/tailscale/go commit)")
goToolchainURL = flag.Bool("go-url", false, "print the URL to the tarball of the Tailscale Go toolchain")
goToolchainSRI = flag.Bool("go-sri", false, "print the SRI hash of the Tailscale Go toolchain")
alpine = flag.Bool("alpine", false, "print the tag of alpine docker image")
)
func main() {
flag.Parse()
if *alpine {
fmt.Println(strings.TrimSpace(ts.AlpineDockerTag))
return
}
if *goToolchain {
fmt.Println(strings.TrimSpace(ts.GoToolchainRev))
}
if *goToolchainURL {
var suffix string
switch runtime.GOARCH {
case "amd64":
// None
case "arm64":
suffix = "-" + runtime.GOARCH
default:
log.Fatalf("unsupported GOARCH %q", runtime.GOARCH)
}
switch runtime.GOOS {
case "linux", "darwin":
default:
log.Fatalf("unsupported GOOS %q", runtime.GOOS)
}
fmt.Printf("https://github.com/tailscale/go/releases/download/build-%s/%s%s.tar.gz\n", strings.TrimSpace(ts.GoToolchainRev), runtime.GOOS, suffix)
}
if *goToolchainSRI {
fmt.Println(strings.TrimSpace(ts.GoToolchainSRI))
}
}