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cmd/tailscale/cli: add 'debug stat' subcommand

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For debugging what's visible inside the macOS sandbox.

But could also be useful for giving users portable commands
during debugging without worrying about which OS they're on.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2022-04-26 06:09:02 -07:00 committed by Brad Fitzpatrick
parent 21413392cf
commit 48e5f4ff88
1 changed files with 27 additions and 0 deletions
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27
cmd/tailscale/cli/debug.go
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@ -69,6 +69,11 @@ var debugCmd = &ffcli.Command{
Exec: runEnv,
ShortHelp: "print cmd/tailscale environment",
},
{
Name: "stat",
Exec: runStat,
ShortHelp: "stat a file",
},
{
Name: "hostinfo",
Exec: runHostinfo,
@ -284,6 +289,28 @@ func runEnv(ctx context.Context, args []string) error {
return nil
}
func runStat(ctx context.Context, args []string) error {
for _, a := range args {
fi, err := os.Lstat(a)
if err != nil {
fmt.Printf("%s: %v\n", a, err)
continue
}
fmt.Printf("%s: %v, %v\n", a, fi.Mode(), fi.Size())
if fi.IsDir() {
ents, _ := os.ReadDir(a)
for i, ent := range ents {
if i == 25 {
fmt.Printf(" ...\n")
break
}
fmt.Printf(" - %s\n", ent.Name())
}
}
}
return nil
}
func runHostinfo(ctx context.Context, args []string) error {
hi := hostinfo.New()
j, _ := json.MarshalIndent(hi, "", " ")