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Extend .debug.* flags and hide them by default

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Allow to override DNS resolver address via the -debug.dnsoverride flag
and SMTP port via -debug.smtpport.

All flags are not available unless maddy is built using the 'debugflags'
tag.
This commit is contained in:
fox.cpp 2019-12-08 15:19:09 +03:00
parent a574b9fbb2
commit 48e21f566e
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GPG key ID: E76D97CCEDE90B6C
15 changed files with 110 additions and 21 deletions
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18
maddy.go
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@ -80,9 +80,10 @@ var (
// only for purposes of modification using -X linker flag.
DefaultLibexecDirectory = "/usr/lib/maddy"
profileEndpoint = flag.String("debug.pprof", "", "enable live profiler HTTP endpoint and listen on the specified endpoint")
blockProfileRate = flag.Int("debug.blockprofrate", 0, "set blocking profile rate")
mutexProfileFract = flag.Int("debug.mutexproffract", 0, "set mutex profile fraction)")
enableDebugFlags = false
profileEndpoint *string
blockProfileRate *int
mutexProfileFract *int
)
func BuildInfo() string {
@ -107,6 +108,13 @@ func Run() int {
logTargets = flag.String("log", "stderr", "default logging target(s)")
printVersion = flag.Bool("v", false, "print version and exit")
)
if enableDebugFlags {
profileEndpoint = flag.String("debug.pprof", "", "enable live profiler HTTP endpoint and listen on the specified address")
blockProfileRate = flag.Int("debug.blockprofrate", 0, "set blocking profile rate")
mutexProfileFract = flag.Int("debug.mutexproffract", 0, "set mutex profile fraction")
}
flag.Parse()
if len(flag.Args()) != 0 {
@ -156,6 +164,10 @@ func Run() int {
}
func initDebug() {
if !enableDebugFlags {
return
}
if *profileEndpoint != "" {
go func() {
log.Println("listening on", "http://"+*profileEndpoint, "for profiler requests")