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package main
import (
"context"
"flag"
"fmt"
"os"
"github.com/mimecast/dtail/internal/cli"
"github.com/mimecast/dtail/internal/clients"
"github.com/mimecast/dtail/internal/config"
"github.com/mimecast/dtail/internal/io/signal"
"github.com/mimecast/dtail/internal/profiling"
"github.com/mimecast/dtail/internal/source"
"github.com/mimecast/dtail/internal/user"
"github.com/mimecast/dtail/internal/version"
)
// The evil begins here.
func main() {
var args config.Args
var displayVersion bool
var grep string
var pprof string
var profileFlags profiling.Flags
userName := user.Name()
flag.BoolVar(&args.NoColor, "noColor", false, "Disable ANSII terminal colors")
flag.BoolVar(&args.NoAuthKey, "no-auth-key", false, "Disable auth-key fast reconnect feature")
flag.BoolVar(&args.Quiet, "quiet", false, "Quiet output mode")
flag.BoolVar(&args.RegexInvert, "invert", false, "Invert regex")
flag.BoolVar(&args.Plain, "plain", false, "Plain output mode")
flag.BoolVar(&args.TrustAllHosts, "trustAllHosts", false, "Trust all unknown host keys")
flag.BoolVar(&displayVersion, "version", false, "Display version")
flag.IntVar(&args.ConnectionsPerCPU, "cpc", config.DefaultConnectionsPerCPU,
"How many connections established per CPU core concurrently")
flag.IntVar(&args.LContext.AfterContext, "after", 0, "Print lines of trailing context after matching lines")
flag.IntVar(&args.LContext.BeforeContext, "before", 0, "Print lines of leading context before matching lines")
flag.IntVar(&args.LContext.MaxCount, "max", 0, "Stop reading file after NUM matching lines")
flag.IntVar(&args.SSHAgentKeyIndex, "agentKeyIndex", -1, "SSH agent key index to use (-1 for all keys)")
flag.IntVar(&args.SSHPort, "port", config.DefaultSSHPort, "SSH server port")
flag.StringVar(&args.ConfigFile, "cfg", "", "Config file path")
flag.StringVar(&args.Discovery, "discovery", "", "Server discovery method")
flag.StringVar(&args.LogDir, "logDir", "~/log", "Log dir")
flag.StringVar(&args.Logger, "logger", config.DefaultClientLogger, "Logger name")
flag.StringVar(&args.LogLevel, "logLevel", config.DefaultLogLevel, "Log level")
flag.StringVar(&args.SSHPrivateKeyFilePath, "key", "", "Path to private key")
flag.StringVar(&args.SSHPrivateKeyFilePath, "auth-key-path", "", "Path to auth key/private key (default ~/.ssh/id_rsa)")
flag.StringVar(&args.RegexStr, "regex", ".", "Regular expression")
flag.StringVar(&args.ServersStr, "servers", "", "Remote servers to connect")
flag.StringVar(&args.UserName, "user", userName, "Your system user name")
flag.StringVar(&args.What, "files", "", "File(s) to read")
flag.StringVar(&grep, "grep", "", "Alias for -regex")
flag.StringVar(&pprof, "pprof", "", "Start PProf server this address")
// Add profiling flags
profiling.AddFlags(&profileFlags)
flag.Parse()
config.Setup(source.Client, &args, flag.Args())
if displayVersion {
runtimeCfg := config.CurrentRuntime()
version.PrintAndExit(runtimeCfg.Client != nil && runtimeCfg.Client.TermColorsEnable)
}
runtime := cli.NewClientRuntime(context.Background(), profileFlags, "dgrep")
if grep != "" {
args.RegexStr = grep
}
runtime.StartPProf(pprof)
runtime.LogStartupMetrics()
client, err := clients.NewGrepClient(args)
if err != nil {
runtime.Stop()
fmt.Fprintf(os.Stderr, "unable to create dgrep client: %v\n", err)
os.Exit(1)
}
status := client.Start(runtime.Context(), signal.InterruptCh(runtime.Context()))
runtime.LogShutdownMetrics()
runtime.Stop()
os.Exit(status)
}
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