fix: remove race conditions with flags (#101)
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Mainly for testing but a nice to have. Proceeds a larger testing refactor Reviewed-on: #101 Reviewed-by: grumbulon <grumbulon@grumbulon.xyz>
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Froth Git
Froth Git
GPG key ID:
5D8CD75CC6B79913
1 changed files with 56 additions and 56 deletions
112
cli/cli.go
112
cli/cli.go
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@ -18,9 +18,9 @@ import (
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// ParseCLI parses arguments given from the CLI and passes them into an `Options`
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// struct.
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func ParseCLI(args []string, version string) (util.Options, error) {
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flag.CommandLine = flag.NewFlagSet(args[0], flag.ContinueOnError)
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flagSet := flag.NewFlagSet(args[0], flag.ContinueOnError)
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flag.Usage = func() {
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flagSet.Usage = func() {
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fmt.Println(`awl - drill, writ small
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Usage: awl name [@server] [record]
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@ -31,80 +31,80 @@ func ParseCLI(args []string, version string) (util.Options, error) {
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Dig-like +[no]commands are also supported, see dig(1) or dig -h
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Options:`)
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flag.PrintDefaults()
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flagSet.PrintDefaults()
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}
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// CLI flags
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//
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// Remember, when adding a flag edit the manpage and the completions :)
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var (
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port = flag.Int("port", 0, "`port` to make DNS query (default: 53 for UDP/TCP, 853 for TLS/QUIC)", flag.OptShorthand('p'), flag.OptDisablePrintDefault(true))
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query = flag.String("query", "", "domain name to `query` (default: .)", flag.OptShorthand('q'))
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class = flag.String("class", "IN", "DNS `class` to query", flag.OptShorthand('c'))
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qType = flag.String("qType", "", "`type` to query (default: A)", flag.OptShorthand('t'))
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port = flagSet.Int("port", 0, "`port` to make DNS query (default: 53 for UDP/TCP, 853 for TLS/QUIC)", flag.OptShorthand('p'), flag.OptDisablePrintDefault(true))
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query = flagSet.String("query", "", "domain name to `query` (default: .)", flag.OptShorthand('q'))
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class = flagSet.String("class", "IN", "DNS `class` to query", flag.OptShorthand('c'))
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qType = flagSet.String("qType", "", "`type` to query (default: A)", flag.OptShorthand('t'))
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ipv4 = flag.Bool("4", false, "force IPv4", flag.OptShorthand('4'))
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ipv6 = flag.Bool("6", false, "force IPv6", flag.OptShorthand('6'))
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reverse = flag.Bool("reverse", false, "do a reverse lookup", flag.OptShorthand('x'))
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ipv4 = flagSet.Bool("4", false, "force IPv4", flag.OptShorthand('4'))
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ipv6 = flagSet.Bool("6", false, "force IPv6", flag.OptShorthand('6'))
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reverse = flagSet.Bool("reverse", false, "do a reverse lookup", flag.OptShorthand('x'))
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timeout = flag.Float32("timeout", 1, "Timeout, in `seconds`")
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retry = flag.Int("retries", 2, "number of `times` to retry")
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timeout = flagSet.Float32("timeout", 1, "Timeout, in `seconds`")
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retry = flagSet.Int("retries", 2, "number of `times` to retry")
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edns = flag.Bool("no-edns", false, "disable EDNS entirely")
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ednsVer = flag.Uint8("edns-ver", 0, "set EDNS version")
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dnssec = flag.Bool("dnssec", false, "enable DNSSEC", flag.OptShorthand('D'))
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expire = flag.Bool("expire", false, "set EDNS expire")
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nsid = flag.Bool("nsid", false, "set EDNS NSID", flag.OptShorthand('n'))
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cookie = flag.Bool("no-cookie", false, "disable sending EDNS cookie (default: cookie sent)")
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tcpKeepAlive = flag.Bool("keep-alive", false, "send EDNS TCP keep-alive")
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udpBufSize = flag.Uint16("buffer-size", 1232, "set EDNS UDP buffer size", flag.OptShorthand('b'))
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mbzflag = flag.String("zflag", "0", "set EDNS z-flag `value`")
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subnet = flag.String("subnet", "", "set EDNS client subnet")
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padding = flag.Bool("pad", false, "set EDNS padding")
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edns = flagSet.Bool("no-edns", false, "disable EDNS entirely")
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ednsVer = flagSet.Uint8("edns-ver", 0, "set EDNS version")
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dnssec = flagSet.Bool("dnssec", false, "enable DNSSEC", flag.OptShorthand('D'))
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expire = flagSet.Bool("expire", false, "set EDNS expire")
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nsid = flagSet.Bool("nsid", false, "set EDNS NSID", flag.OptShorthand('n'))
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cookie = flagSet.Bool("no-cookie", false, "disable sending EDNS cookie (default: cookie sent)")
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tcpKeepAlive = flagSet.Bool("keep-alive", false, "send EDNS TCP keep-alive")
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udpBufSize = flagSet.Uint16("buffer-size", 1232, "set EDNS UDP buffer size", flag.OptShorthand('b'))
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mbzflag = flagSet.String("zflag", "0", "set EDNS z-flag `value`")
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subnet = flagSet.String("subnet", "", "set EDNS client subnet")
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padding = flagSet.Bool("pad", false, "set EDNS padding")
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badCookie = flag.Bool("no-bad-cookie", false, "ignore BADCOOKIE EDNS responses (default: retry with correct cookie")
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truncate = flag.Bool("no-truncate", false, "ignore truncation if a UDP request truncates (default: retry with TCP)")
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badCookie = flagSet.Bool("no-bad-cookie", false, "ignore BADCOOKIE EDNS responses (default: retry with correct cookie")
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truncate = flagSet.Bool("no-truncate", false, "ignore truncation if a UDP request truncates (default: retry with TCP)")
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tcp = flag.Bool("tcp", false, "use TCP")
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dnscrypt = flag.Bool("dnscrypt", false, "use DNSCrypt")
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tls = flag.Bool("tls", false, "use DNS-over-TLS", flag.OptShorthand('T'))
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https = flag.Bool("https", false, "use DNS-over-HTTPS", flag.OptShorthand('H'))
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quic = flag.Bool("quic", false, "use DNS-over-QUIC", flag.OptShorthand('Q'))
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tcp = flagSet.Bool("tcp", false, "use TCP")
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dnscrypt = flagSet.Bool("dnscrypt", false, "use DNSCrypt")
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tls = flagSet.Bool("tls", false, "use DNS-over-TLS", flag.OptShorthand('T'))
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https = flagSet.Bool("https", false, "use DNS-over-HTTPS", flag.OptShorthand('H'))
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quic = flagSet.Bool("quic", false, "use DNS-over-QUIC", flag.OptShorthand('Q'))
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tlsHost = flag.String("tls-host", "", "Server name to use for TLS verification")
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noVerify = flag.Bool("tls-no-verify", false, "Disable TLS cert verification")
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tlsHost = flagSet.String("tls-host", "", "Server name to use for TLS verification")
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noVerify = flagSet.Bool("tls-no-verify", false, "Disable TLS cert verification")
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aaflag = flag.Bool("aa", false, "set/unset AA (Authoratative Answer) flag (default: not set)")
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adflag = flag.Bool("ad", false, "set/unset AD (Authenticated Data) flag (default: not set)")
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cdflag = flag.Bool("cd", false, "set/unset CD (Checking Disabled) flag (default: not set)")
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qrflag = flag.Bool("qr", false, "set/unset QR (QueRy) flag (default: not set)")
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rdflag = flag.Bool("rd", true, "set/unset RD (Recursion Desired) flag (default: set)", flag.OptDisablePrintDefault(true))
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raflag = flag.Bool("ra", false, "set/unset RA (Recursion Available) flag (default: not set)")
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tcflag = flag.Bool("tc", false, "set/unset TC (TrunCated) flag (default: not set)")
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zflag = flag.Bool("z", false, "set/unset Z (Zero) flag (default: not set)", flag.OptShorthand('z'))
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aaflag = flagSet.Bool("aa", false, "set/unset AA (Authoratative Answer) flag (default: not set)")
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adflag = flagSet.Bool("ad", false, "set/unset AD (Authenticated Data) flag (default: not set)")
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cdflag = flagSet.Bool("cd", false, "set/unset CD (Checking Disabled) flag (default: not set)")
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qrflag = flagSet.Bool("qr", false, "set/unset QR (QueRy) flag (default: not set)")
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rdflag = flagSet.Bool("rd", true, "set/unset RD (Recursion Desired) flag (default: set)", flag.OptDisablePrintDefault(true))
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raflag = flagSet.Bool("ra", false, "set/unset RA (Recursion Available) flag (default: not set)")
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tcflag = flagSet.Bool("tc", false, "set/unset TC (TrunCated) flag (default: not set)")
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zflag = flagSet.Bool("z", false, "set/unset Z (Zero) flag (default: not set)", flag.OptShorthand('z'))
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short = flag.Bool("short", false, "print just the results", flag.OptShorthand('s'))
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json = flag.Bool("json", false, "print the result(s) as JSON", flag.OptShorthand('j'))
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xml = flag.Bool("xml", false, "print the result(s) as XML", flag.OptShorthand('X'))
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yaml = flag.Bool("yaml", false, "print the result(s) as yaml", flag.OptShorthand('y'))
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short = flagSet.Bool("short", false, "print just the results", flag.OptShorthand('s'))
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json = flagSet.Bool("json", false, "print the result(s) as JSON", flag.OptShorthand('j'))
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xml = flagSet.Bool("xml", false, "print the result(s) as XML", flag.OptShorthand('X'))
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yaml = flagSet.Bool("yaml", false, "print the result(s) as yaml", flag.OptShorthand('y'))
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noC = flag.Bool("no-comments", false, "disable printing the comments")
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noQ = flag.Bool("no-question", false, "disable printing the question section")
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noOpt = flag.Bool("no-opt", false, "disable printing the OPT pseudosection")
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noAns = flag.Bool("no-answer", false, "disable printing the answer section")
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noAuth = flag.Bool("no-authority", false, "disable printing the authority section")
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noAdd = flag.Bool("no-additional", false, "disable printing the additional section")
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noStats = flag.Bool("no-statistics", false, "disable printing the statistics section")
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noC = flagSet.Bool("no-comments", false, "disable printing the comments")
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noQ = flagSet.Bool("no-question", false, "disable printing the question section")
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noOpt = flagSet.Bool("no-opt", false, "disable printing the OPT pseudosection")
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noAns = flagSet.Bool("no-answer", false, "disable printing the answer section")
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noAuth = flagSet.Bool("no-authority", false, "disable printing the authority section")
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noAdd = flagSet.Bool("no-additional", false, "disable printing the additional section")
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noStats = flagSet.Bool("no-statistics", false, "disable printing the statistics section")
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verbosity = flag.Int("verbosity", 1, "sets verbosity `level`", flag.OptShorthand('v'), flag.OptNoOptDefVal("2"))
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versionFlag = flag.Bool("version", false, "print version information", flag.OptShorthand('V'))
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verbosity = flagSet.Int("verbosity", 1, "sets verbosity `level`", flag.OptShorthand('v'), flag.OptNoOptDefVal("2"))
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versionFlag = flagSet.Bool("version", false, "print version information", flag.OptShorthand('V'))
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)
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// Don't sort the flags when -h is given
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flag.CommandLine.SortFlags = false
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flagSet.SortFlags = false
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// Parse the flags
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if err := flag.CommandLine.Parse(args[1:]); err != nil {
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if err := flagSet.Parse(args[1:]); err != nil {
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return util.Options{Logger: util.InitLogger(*verbosity)}, fmt.Errorf("flag: %w", err)
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}
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@ -194,7 +194,7 @@ func ParseCLI(args []string, version string) (util.Options, error) {
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// Parse all the arguments that don't start with - or --
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// This includes the dig-style (+) options
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err = ParseMiscArgs(flag.Args(), &opts)
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err = ParseMiscArgs(flagSet.Args(), &opts)
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if err != nil {
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return opts, err
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}
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