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cmd/tailscale: warn to stderr that netcheck -format=json isn't stable

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This commit is contained in:
Brad Fitzpatrick 2020-06-01 11:15:39 -07:00
parent 24009241bf
commit 984a699219
1 changed files with 5 additions and 0 deletions
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5
cmd/tailscale/netcheck.go
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@ -12,6 +12,7 @@
"log" "log"
"os" "os"
"sort" "sort"
"strings"
"time" "time"
"github.com/peterbourgon/ff/v2/ffcli" "github.com/peterbourgon/ff/v2/ffcli"
@ -53,6 +54,10 @@ func runNetcheck(ctx context.Context, args []string) error {
c.Logf = logger.Discard c.Logf = logger.Discard
} }
if strings.HasPrefix(netcheckArgs.format, "json") {
fmt.Fprintln(os.Stderr, "# Warning: this JSON format is not yet considered a stable interface")
}
dm := derpmap.Prod() dm := derpmap.Prod()
for { for {
t0 := time.Now() t0 := time.Now()