mirror of
https://github.com/AdguardTeam/AdGuardHome.git
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Pull request: refactor-opts
Updates #2893. Squashed commit of the following: commit c7027abd1088e27569367f3450e9225ff605b43d Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Oct 5 16:54:23 2022 +0300 home: imp docs commit 86a5b0aca916a7db608eba8263ecdc6ca79c8043 Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Oct 5 16:50:44 2022 +0300 home: refactor opts more commit 74c5989d1edf8d007dec847f4aaa0d7a0d24dc38 Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Wed Oct 5 15:17:26 2022 +0300 home: refactor option parsing
This commit is contained in:
Ainar Garipov
parent
f557339ca0
commit
2e0f6e5468
8 changed files with 515 additions and 414 deletions
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@ -235,22 +235,7 @@ func (s *server) handleDHCPSetConfig(w http.ResponseWriter, r *http.Request) {
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return
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}
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if conf.Enabled != aghalg.NBNull {
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s.conf.Enabled = conf.Enabled == aghalg.NBTrue
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}
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if conf.InterfaceName != "" {
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s.conf.InterfaceName = conf.InterfaceName
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}
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if srv4 != nil {
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s.srv4 = srv4
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}
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if srv6 != nil {
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s.srv6 = srv6
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}
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s.setConfFromJSON(conf, srv4, srv6)
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s.conf.ConfigModified()
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err = s.dbLoad()
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@ -269,6 +254,26 @@ func (s *server) handleDHCPSetConfig(w http.ResponseWriter, r *http.Request) {
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}
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}
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// setConfFromJSON sets configuration parameters in s from the new configuration
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// decoded from JSON.
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func (s *server) setConfFromJSON(conf *dhcpServerConfigJSON, srv4, srv6 DHCPServer) {
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if conf.Enabled != aghalg.NBNull {
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s.conf.Enabled = conf.Enabled == aghalg.NBTrue
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}
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if conf.InterfaceName != "" {
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s.conf.InterfaceName = conf.InterfaceName
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}
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if srv4 != nil {
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s.srv4 = srv4
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}
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if srv6 != nil {
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s.srv6 = srv6
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}
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}
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type netInterfaceJSON struct {
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Name string `json:"name"`
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HardwareAddr string `json:"hardware_address"`
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@ -12,16 +12,11 @@ import (
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"testing"
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"time"
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"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
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"github.com/AdguardTeam/golibs/testutil"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestMain(m *testing.M) {
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aghtest.DiscardLogOutput(m)
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}
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func TestNewSessionToken(t *testing.T) {
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// Successful case.
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token, err := newSessionToken()
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@ -97,9 +97,15 @@ var Context homeContext
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// Main is the entry point
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func Main(clientBuildFS fs.FS) {
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// config can be specified, which reads options from there, but other command line flags have to override config values
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// therefore, we must do it manually instead of using a lib
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args := loadOptions()
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initCmdLineOpts()
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// The configuration file path can be overridden, but other command-line
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// options have to override config values. Therefore, do it manually
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// instead of using package flag.
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//
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// TODO(a.garipov): The comment above is most likely false. Replace with
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// package flag.
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opts := loadCmdLineOpts()
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Context.appSignalChannel = make(chan os.Signal)
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signal.Notify(Context.appSignalChannel, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT)
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@ -120,26 +126,18 @@ func Main(clientBuildFS fs.FS) {
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}
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}()
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if args.serviceControlAction != "" {
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handleServiceControlAction(args, clientBuildFS)
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if opts.serviceControlAction != "" {
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handleServiceControlAction(opts, clientBuildFS)
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return
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}
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// run the protection
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run(args, clientBuildFS)
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run(opts, clientBuildFS)
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}
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func setupContext(args options) {
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Context.runningAsService = args.runningAsService
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Context.disableUpdate = args.disableUpdate ||
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version.Channel() == version.ChannelDevelopment
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Context.firstRun = detectFirstRun()
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if Context.firstRun {
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log.Info("This is the first time AdGuard Home is launched")
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checkPermissions()
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}
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func setupContext(opts options) {
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setupContextFlags(opts)
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switch version.Channel() {
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case version.ChannelEdge, version.ChannelDevelopment:
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@ -174,13 +172,13 @@ func setupContext(args options) {
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os.Exit(1)
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}
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if args.checkConfig {
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if opts.checkConfig {
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log.Info("configuration file is ok")
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os.Exit(0)
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}
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if !args.noEtcHosts && config.Clients.Sources.HostsFile {
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if !opts.noEtcHosts && config.Clients.Sources.HostsFile {
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err = setupHostsContainer()
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fatalOnError(err)
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}
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@ -189,6 +187,24 @@ func setupContext(args options) {
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Context.mux = http.NewServeMux()
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}
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// setupContextFlags sets global flags and prints their status to the log.
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func setupContextFlags(opts options) {
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Context.firstRun = detectFirstRun()
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if Context.firstRun {
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log.Info("This is the first time AdGuard Home is launched")
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checkPermissions()
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}
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Context.runningAsService = opts.runningAsService
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// Don't print the runningAsService flag, since that has already been done
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// in [run].
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Context.disableUpdate = opts.disableUpdate || version.Channel() == version.ChannelDevelopment
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if Context.disableUpdate {
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log.Info("AdGuard Home updates are disabled")
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}
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}
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// logIfUnsupported logs a formatted warning if the error is one of the
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// unsupported errors and returns nil. If err is nil, logIfUnsupported returns
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// nil. Otherwise, it returns err.
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@ -270,7 +286,7 @@ func setupHostsContainer() (err error) {
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return nil
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}
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func setupConfig(args options) (err error) {
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func setupConfig(opts options) (err error) {
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config.DNS.DnsfilterConf.EtcHosts = Context.etcHosts
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config.DNS.DnsfilterConf.ConfigModified = onConfigModified
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config.DNS.DnsfilterConf.HTTPRegister = httpRegister
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@ -312,9 +328,9 @@ func setupConfig(args options) (err error) {
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Context.clients.Init(config.Clients.Persistent, Context.dhcpServer, Context.etcHosts, arpdb)
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if args.bindPort != 0 {
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if opts.bindPort != 0 {
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tcpPorts := aghalg.UniqChecker[tcpPort]{}
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addPorts(tcpPorts, tcpPort(args.bindPort), tcpPort(config.BetaBindPort))
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addPorts(tcpPorts, tcpPort(opts.bindPort), tcpPort(config.BetaBindPort))
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udpPorts := aghalg.UniqChecker[udpPort]{}
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addPorts(udpPorts, udpPort(config.DNS.Port))
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@ -336,23 +352,23 @@ func setupConfig(args options) (err error) {
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return fmt.Errorf("validating udp ports: %w", err)
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}
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config.BindPort = args.bindPort
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config.BindPort = opts.bindPort
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}
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// override bind host/port from the console
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if args.bindHost != nil {
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config.BindHost = args.bindHost
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if opts.bindHost != nil {
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config.BindHost = opts.bindHost
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}
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if len(args.pidFile) != 0 && writePIDFile(args.pidFile) {
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Context.pidFileName = args.pidFile
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if len(opts.pidFile) != 0 && writePIDFile(opts.pidFile) {
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Context.pidFileName = opts.pidFile
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}
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return nil
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}
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func initWeb(args options, clientBuildFS fs.FS) (web *Web, err error) {
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func initWeb(opts options, clientBuildFS fs.FS) (web *Web, err error) {
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var clientFS, clientBetaFS fs.FS
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if args.localFrontend {
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if opts.localFrontend {
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log.Info("warning: using local frontend files")
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clientFS = os.DirFS("build/static")
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@ -400,24 +416,24 @@ func fatalOnError(err error) {
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}
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// run configures and starts AdGuard Home.
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func run(args options, clientBuildFS fs.FS) {
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func run(opts options, clientBuildFS fs.FS) {
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// configure config filename
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initConfigFilename(args)
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initConfigFilename(opts)
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// configure working dir and config path
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initWorkingDir(args)
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initWorkingDir(opts)
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// configure log level and output
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configureLogger(args)
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configureLogger(opts)
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// Print the first message after logger is configured.
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log.Info(version.Full())
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log.Debug("current working directory is %s", Context.workDir)
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if args.runningAsService {
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if opts.runningAsService {
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log.Info("AdGuard Home is running as a service")
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}
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setupContext(args)
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setupContext(opts)
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err := configureOS(config)
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fatalOnError(err)
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@ -427,7 +443,7 @@ func run(args options, clientBuildFS fs.FS) {
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// but also avoid relying on automatic Go init() function
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filtering.InitModule()
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err = setupConfig(args)
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err = setupConfig(opts)
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fatalOnError(err)
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if !Context.firstRun {
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@ -456,7 +472,7 @@ func run(args options, clientBuildFS fs.FS) {
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}
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sessFilename := filepath.Join(Context.getDataDir(), "sessions.db")
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GLMode = args.glinetMode
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GLMode = opts.glinetMode
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var rateLimiter *authRateLimiter
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if config.AuthAttempts > 0 && config.AuthBlockMin > 0 {
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rateLimiter = newAuthRateLimiter(
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@ -483,7 +499,7 @@ func run(args options, clientBuildFS fs.FS) {
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log.Fatalf("Can't initialize TLS module")
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}
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Context.web, err = initWeb(args, clientBuildFS)
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Context.web, err = initWeb(opts, clientBuildFS)
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fatalOnError(err)
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if !Context.firstRun {
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@ -575,10 +591,10 @@ func writePIDFile(fn string) bool {
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return true
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}
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func initConfigFilename(args options) {
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func initConfigFilename(opts options) {
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// config file path can be overridden by command-line arguments:
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if args.configFilename != "" {
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Context.configFilename = args.configFilename
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if opts.confFilename != "" {
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Context.configFilename = opts.confFilename
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} else {
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// Default config file name
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Context.configFilename = "AdGuardHome.yaml"
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@ -587,15 +603,15 @@ func initConfigFilename(args options) {
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// initWorkingDir initializes the workDir
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// if no command-line arguments specified, we use the directory where our binary file is located
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func initWorkingDir(args options) {
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func initWorkingDir(opts options) {
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execPath, err := os.Executable()
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if err != nil {
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panic(err)
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}
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if args.workDir != "" {
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if opts.workDir != "" {
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// If there is a custom config file, use it's directory as our working dir
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Context.workDir = args.workDir
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Context.workDir = opts.workDir
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} else {
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Context.workDir = filepath.Dir(execPath)
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}
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@ -609,15 +625,15 @@ func initWorkingDir(args options) {
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}
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// configureLogger configures logger level and output
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func configureLogger(args options) {
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func configureLogger(opts options) {
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ls := getLogSettings()
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// command-line arguments can override config settings
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if args.verbose || config.Verbose {
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if opts.verbose || config.Verbose {
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ls.Verbose = true
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}
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if args.logFile != "" {
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ls.File = args.logFile
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if opts.logFile != "" {
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ls.File = opts.logFile
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} else if config.File != "" {
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ls.File = config.File
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}
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@ -638,7 +654,7 @@ func configureLogger(args options) {
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// happen pretty quickly.
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log.SetFlags(log.LstdFlags | log.Lmicroseconds)
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if args.runningAsService && ls.File == "" && runtime.GOOS == "windows" {
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if opts.runningAsService && ls.File == "" && runtime.GOOS == "windows" {
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// When running as a Windows service, use eventlog by default if nothing
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// else is configured. Otherwise, we'll simply lose the log output.
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ls.File = configSyslog
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@ -728,25 +744,29 @@ func exitWithError() {
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os.Exit(64)
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}
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// loadOptions reads command line arguments and initializes configuration
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func loadOptions() options {
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o, f, err := parse(os.Args[0], os.Args[1:])
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// loadCmdLineOpts reads command line arguments and initializes configuration
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// from them. If there is an error or an effect, loadCmdLineOpts processes them
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// and exits.
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func loadCmdLineOpts() (opts options) {
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opts, eff, err := parseCmdOpts(os.Args[0], os.Args[1:])
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if err != nil {
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log.Error(err.Error())
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_ = printHelp(os.Args[0])
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printHelp(os.Args[0])
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exitWithError()
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} else if f != nil {
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err = f()
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}
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if eff != nil {
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err = eff()
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if err != nil {
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log.Error(err.Error())
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exitWithError()
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} else {
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os.Exit(0)
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}
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os.Exit(0)
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}
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return o
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return opts
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}
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// printWebAddrs prints addresses built from proto, addr, and an appropriate
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|
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12
internal/home/home_test.go
Normal file
12
internal/home/home_test.go
Normal file
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@ -0,0 +1,12 @@
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package home
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import (
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"testing"
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"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
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)
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func TestMain(m *testing.M) {
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aghtest.DiscardLogOutput(m)
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initCmdLineOpts()
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}
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@ -5,30 +5,60 @@ import (
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"net"
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"os"
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"strconv"
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"strings"
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"github.com/AdguardTeam/AdGuardHome/internal/version"
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"github.com/AdguardTeam/golibs/log"
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"github.com/AdguardTeam/golibs/stringutil"
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)
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// options passed from command-line arguments
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type options struct {
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verbose bool // is verbose logging enabled
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configFilename string // path to the config file
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workDir string // path to the working directory where we will store the filters data and the querylog
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bindHost net.IP // host address to bind HTTP server on
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bindPort int // port to serve HTTP pages on
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logFile string // Path to the log file. If empty, write to stdout. If "syslog", writes to syslog
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pidFile string // File name to save PID to
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checkConfig bool // Check configuration and exit
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disableUpdate bool // If set, don't check for updates
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// TODO(a.garipov): Replace with package flag.
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// service control action (see service.ControlAction array + "status" command)
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// options represents the command-line options.
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type options struct {
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// confFilename is the path to the configuration file.
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confFilename string
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|
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// workDir is the path to the working directory where AdGuard Home stores
|
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// filter data, the query log, and other data.
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workDir string
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|
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// logFile is the path to the log file. If empty, AdGuard Home writes to
|
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// stdout; if "syslog", to syslog.
|
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logFile string
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||||
|
||||
// pidFile is the file name for the file to which the PID is saved.
|
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pidFile string
|
||||
|
||||
// serviceControlAction is the service action to perform. See
|
||||
// [service.ControlAction] and [handleServiceControlAction].
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serviceControlAction string
|
||||
|
||||
// runningAsService flag is set to true when options are passed from the service runner
|
||||
// bindHost is the address on which to serve the HTTP UI.
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bindHost net.IP
|
||||
|
||||
// bindPort is the port on which to serve the HTTP UI.
|
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bindPort int
|
||||
|
||||
// checkConfig is true if the current invocation is only required to check
|
||||
// the configuration file and exit.
|
||||
checkConfig bool
|
||||
|
||||
// disableUpdate, if set, makes AdGuard Home not check for updates.
|
||||
disableUpdate bool
|
||||
|
||||
// verbose shows if verbose logging is enabled.
|
||||
verbose bool
|
||||
|
||||
// runningAsService flag is set to true when options are passed from the
|
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// service runner
|
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//
|
||||
// TODO(a.garipov): Perhaps this could be determined by a non-empty
|
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// serviceControlAction?
|
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runningAsService bool
|
||||
|
||||
glinetMode bool // Activate GL-Inet compatibility mode
|
||||
// glinetMode shows if the GL-Inet compatibility mode is enabled.
|
||||
glinetMode bool
|
||||
|
||||
// noEtcHosts flag should be provided when /etc/hosts file shouldn't be
|
||||
// used.
|
||||
|
|
@ -39,88 +69,85 @@ type options struct {
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|||
localFrontend bool
|
||||
}
|
||||
|
||||
// functions used for their side-effects
|
||||
type effect func() error
|
||||
|
||||
type arg struct {
|
||||
description string // a short, English description of the argument
|
||||
longName string // the name of the argument used after '--'
|
||||
shortName string // the name of the argument used after '-'
|
||||
|
||||
// only one of updateWithValue, updateNoValue, and effect should be present
|
||||
|
||||
updateWithValue func(o options, v string) (options, error) // the mutator for arguments with parameters
|
||||
updateNoValue func(o options) (options, error) // the mutator for arguments without parameters
|
||||
effect func(o options, exec string) (f effect, err error) // the side-effect closure generator
|
||||
|
||||
serialize func(o options) []string // the re-serialization function back to arguments (return nil for omit)
|
||||
// initCmdLineOpts completes initialization of the global command-line option
|
||||
// slice. It must only be called once.
|
||||
func initCmdLineOpts() {
|
||||
// The --help option cannot be put directly into cmdLineOpts, because that
|
||||
// causes initialization cycle due to printHelp referencing cmdLineOpts.
|
||||
cmdLineOpts = append(cmdLineOpts, cmdLineOpt{
|
||||
updateWithValue: nil,
|
||||
updateNoValue: nil,
|
||||
effect: func(o options, exec string) (effect, error) {
|
||||
return func() error { printHelp(exec); exitWithError(); return nil }, nil
|
||||
},
|
||||
serialize: func(o options) (val string, ok bool) { return "", false },
|
||||
description: "Print this help.",
|
||||
longName: "help",
|
||||
shortName: "",
|
||||
})
|
||||
}
|
||||
|
||||
// {type}SliceOrNil functions check their parameter of type {type}
|
||||
// against its zero value and return nil if the parameter value is
|
||||
// zero otherwise they return a string slice of the parameter
|
||||
// effect is the type for functions used for their side-effects.
|
||||
type effect func() (err error)
|
||||
|
||||
func ipSliceOrNil(ip net.IP) []string {
|
||||
if ip == nil {
|
||||
return nil
|
||||
}
|
||||
// cmdLineOpt contains the data for a single command-line option. Only one of
|
||||
// updateWithValue, updateNoValue, and effect must be present.
|
||||
type cmdLineOpt struct {
|
||||
updateWithValue func(o options, v string) (updated options, err error)
|
||||
updateNoValue func(o options) (updated options, err error)
|
||||
effect func(o options, exec string) (eff effect, err error)
|
||||
|
||||
return []string{ip.String()}
|
||||
// serialize is a function that encodes the option into a slice of
|
||||
// command-line arguments, if necessary. If ok is false, this option should
|
||||
// be skipped.
|
||||
serialize func(o options) (val string, ok bool)
|
||||
|
||||
description string
|
||||
longName string
|
||||
shortName string
|
||||
}
|
||||
|
||||
func stringSliceOrNil(s string) []string {
|
||||
if s == "" {
|
||||
return nil
|
||||
}
|
||||
// cmdLineOpts are all command-line options of AdGuard Home.
|
||||
var cmdLineOpts = []cmdLineOpt{{
|
||||
updateWithValue: func(o options, v string) (options, error) {
|
||||
o.confFilename = v
|
||||
return o, nil
|
||||
},
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) {
|
||||
return o.confFilename, o.confFilename != ""
|
||||
},
|
||||
description: "Path to the config file.",
|
||||
longName: "config",
|
||||
shortName: "c",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) { o.workDir = v; return o, nil },
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return o.workDir, o.workDir != "" },
|
||||
description: "Path to the working directory.",
|
||||
longName: "work-dir",
|
||||
shortName: "w",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) {
|
||||
o.bindHost = net.ParseIP(v)
|
||||
return o, nil
|
||||
},
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) {
|
||||
if o.bindHost == nil {
|
||||
return "", false
|
||||
}
|
||||
|
||||
return []string{s}
|
||||
}
|
||||
|
||||
func intSliceOrNil(i int) []string {
|
||||
if i == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
return []string{strconv.Itoa(i)}
|
||||
}
|
||||
|
||||
func boolSliceOrNil(b bool) []string {
|
||||
if b {
|
||||
return []string{}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
var args []arg
|
||||
|
||||
var configArg = arg{
|
||||
"Path to the config file.",
|
||||
"config", "c",
|
||||
func(o options, v string) (options, error) { o.configFilename = v; return o, nil },
|
||||
nil,
|
||||
nil,
|
||||
func(o options) []string { return stringSliceOrNil(o.configFilename) },
|
||||
}
|
||||
|
||||
var workDirArg = arg{
|
||||
"Path to the working directory.",
|
||||
"work-dir", "w",
|
||||
func(o options, v string) (options, error) { o.workDir = v; return o, nil }, nil, nil,
|
||||
func(o options) []string { return stringSliceOrNil(o.workDir) },
|
||||
}
|
||||
|
||||
var hostArg = arg{
|
||||
"Host address to bind HTTP server on.",
|
||||
"host", "h",
|
||||
func(o options, v string) (options, error) { o.bindHost = net.ParseIP(v); return o, nil }, nil, nil,
|
||||
func(o options) []string { return ipSliceOrNil(o.bindHost) },
|
||||
}
|
||||
|
||||
var portArg = arg{
|
||||
"Port to serve HTTP pages on.",
|
||||
"port", "p",
|
||||
func(o options, v string) (options, error) {
|
||||
return o.bindHost.String(), true
|
||||
},
|
||||
description: "Host address to bind HTTP server on.",
|
||||
longName: "host",
|
||||
shortName: "h",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) {
|
||||
var err error
|
||||
var p int
|
||||
minPort, maxPort := 0, 1<<16-1
|
||||
|
|
@ -131,108 +158,81 @@ var portArg = arg{
|
|||
} else {
|
||||
o.bindPort = p
|
||||
}
|
||||
return o, err
|
||||
}, nil, nil,
|
||||
func(o options) []string { return intSliceOrNil(o.bindPort) },
|
||||
}
|
||||
|
||||
var serviceArg = arg{
|
||||
"Service control action: status, install, uninstall, start, stop, restart, reload (configuration).",
|
||||
"service", "s",
|
||||
func(o options, v string) (options, error) {
|
||||
return o, err
|
||||
},
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) {
|
||||
if o.bindPort == 0 {
|
||||
return "", false
|
||||
}
|
||||
|
||||
return strconv.Itoa(o.bindPort), true
|
||||
},
|
||||
description: "Port to serve HTTP pages on.",
|
||||
longName: "port",
|
||||
shortName: "p",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) {
|
||||
o.serviceControlAction = v
|
||||
return o, nil
|
||||
}, nil, nil,
|
||||
func(o options) []string { return stringSliceOrNil(o.serviceControlAction) },
|
||||
}
|
||||
|
||||
var logfileArg = arg{
|
||||
"Path to log file. If empty: write to stdout; if 'syslog': write to system log.",
|
||||
"logfile", "l",
|
||||
func(o options, v string) (options, error) { o.logFile = v; return o, nil }, nil, nil,
|
||||
func(o options) []string { return stringSliceOrNil(o.logFile) },
|
||||
}
|
||||
|
||||
var pidfileArg = arg{
|
||||
"Path to a file where PID is stored.",
|
||||
"pidfile", "",
|
||||
func(o options, v string) (options, error) { o.pidFile = v; return o, nil }, nil, nil,
|
||||
func(o options) []string { return stringSliceOrNil(o.pidFile) },
|
||||
}
|
||||
|
||||
var checkConfigArg = arg{
|
||||
"Check configuration and exit.",
|
||||
"check-config", "",
|
||||
nil, func(o options) (options, error) { o.checkConfig = true; return o, nil }, nil,
|
||||
func(o options) []string { return boolSliceOrNil(o.checkConfig) },
|
||||
}
|
||||
|
||||
var noCheckUpdateArg = arg{
|
||||
"Don't check for updates.",
|
||||
"no-check-update", "",
|
||||
nil, func(o options) (options, error) { o.disableUpdate = true; return o, nil }, nil,
|
||||
func(o options) []string { return boolSliceOrNil(o.disableUpdate) },
|
||||
}
|
||||
|
||||
var disableMemoryOptimizationArg = arg{
|
||||
"Deprecated. Disable memory optimization.",
|
||||
"no-mem-optimization", "",
|
||||
nil, nil, func(_ options, _ string) (f effect, err error) {
|
||||
},
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) {
|
||||
return o.serviceControlAction, o.serviceControlAction != ""
|
||||
},
|
||||
description: `Service control action: status, install (as a service), ` +
|
||||
`uninstall (as a service), start, stop, restart, reload (configuration).`,
|
||||
longName: "service",
|
||||
shortName: "s",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) { o.logFile = v; return o, nil },
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return o.logFile, o.logFile != "" },
|
||||
description: `Path to log file. If empty, write to stdout; ` +
|
||||
`if "syslog", write to system log.`,
|
||||
longName: "logfile",
|
||||
shortName: "l",
|
||||
}, {
|
||||
updateWithValue: func(o options, v string) (options, error) { o.pidFile = v; return o, nil },
|
||||
updateNoValue: nil,
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return o.pidFile, o.pidFile != "" },
|
||||
description: "Path to a file where PID is stored.",
|
||||
longName: "pidfile",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.checkConfig = true; return o, nil },
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.checkConfig },
|
||||
description: "Check configuration and exit.",
|
||||
longName: "check-config",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.disableUpdate = true; return o, nil },
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.disableUpdate },
|
||||
description: "Don't check for updates.",
|
||||
longName: "no-check-update",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: nil,
|
||||
effect: func(_ options, _ string) (f effect, err error) {
|
||||
log.Info("warning: using --no-mem-optimization flag has no effect and is deprecated")
|
||||
|
||||
return nil, nil
|
||||
},
|
||||
func(o options) []string { return nil },
|
||||
}
|
||||
|
||||
var verboseArg = arg{
|
||||
"Enable verbose output.",
|
||||
"verbose", "v",
|
||||
nil, func(o options) (options, error) { o.verbose = true; return o, nil }, nil,
|
||||
func(o options) []string { return boolSliceOrNil(o.verbose) },
|
||||
}
|
||||
|
||||
var glinetArg = arg{
|
||||
"Run in GL-Inet compatibility mode.",
|
||||
"glinet", "",
|
||||
nil, func(o options) (options, error) { o.glinetMode = true; return o, nil }, nil,
|
||||
func(o options) []string { return boolSliceOrNil(o.glinetMode) },
|
||||
}
|
||||
|
||||
var versionArg = arg{
|
||||
description: "Show the version and exit. Show more detailed version description with -v.",
|
||||
longName: "version",
|
||||
shortName: "",
|
||||
updateWithValue: nil,
|
||||
updateNoValue: nil,
|
||||
effect: func(o options, exec string) (effect, error) {
|
||||
return func() error {
|
||||
if o.verbose {
|
||||
fmt.Println(version.Verbose())
|
||||
} else {
|
||||
fmt.Println(version.Full())
|
||||
}
|
||||
os.Exit(0)
|
||||
|
||||
return nil
|
||||
}, nil
|
||||
},
|
||||
serialize: func(o options) []string { return nil },
|
||||
}
|
||||
|
||||
var helpArg = arg{
|
||||
"Print this help.",
|
||||
"help", "",
|
||||
nil, nil, func(o options, exec string) (effect, error) {
|
||||
return func() error { _ = printHelp(exec); os.Exit(64); return nil }, nil
|
||||
},
|
||||
func(o options) []string { return nil },
|
||||
}
|
||||
|
||||
var noEtcHostsArg = arg{
|
||||
description: "Deprecated. Do not use the OS-provided hosts.",
|
||||
longName: "no-etc-hosts",
|
||||
shortName: "",
|
||||
serialize: func(o options) (val string, ok bool) { return "", false },
|
||||
description: "Deprecated. Disable memory optimization.",
|
||||
longName: "no-mem-optimization",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.noEtcHosts = true; return o, nil },
|
||||
effect: func(_ options, _ string) (f effect, err error) {
|
||||
|
|
@ -242,146 +242,216 @@ var noEtcHostsArg = arg{
|
|||
|
||||
return nil, nil
|
||||
},
|
||||
serialize: func(o options) []string { return boolSliceOrNil(o.noEtcHosts) },
|
||||
}
|
||||
|
||||
var localFrontendArg = arg{
|
||||
description: "Use local frontend directories.",
|
||||
longName: "local-frontend",
|
||||
shortName: "",
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.noEtcHosts },
|
||||
description: "Deprecated. Do not use the OS-provided hosts.",
|
||||
longName: "no-etc-hosts",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.localFrontend = true; return o, nil },
|
||||
effect: nil,
|
||||
serialize: func(o options) []string { return boolSliceOrNil(o.localFrontend) },
|
||||
}
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.localFrontend },
|
||||
description: "Use local frontend directories.",
|
||||
longName: "local-frontend",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.verbose = true; return o, nil },
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.verbose },
|
||||
description: "Enable verbose output.",
|
||||
longName: "verbose",
|
||||
shortName: "v",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: func(o options) (options, error) { o.glinetMode = true; return o, nil },
|
||||
effect: nil,
|
||||
serialize: func(o options) (val string, ok bool) { return "", o.glinetMode },
|
||||
description: "Run in GL-Inet compatibility mode.",
|
||||
longName: "glinet",
|
||||
shortName: "",
|
||||
}, {
|
||||
updateWithValue: nil,
|
||||
updateNoValue: nil,
|
||||
effect: func(o options, exec string) (effect, error) {
|
||||
return func() error {
|
||||
if o.verbose {
|
||||
fmt.Println(version.Verbose())
|
||||
} else {
|
||||
fmt.Println(version.Full())
|
||||
}
|
||||
|
||||
func init() {
|
||||
args = []arg{
|
||||
configArg,
|
||||
workDirArg,
|
||||
hostArg,
|
||||
portArg,
|
||||
serviceArg,
|
||||
logfileArg,
|
||||
pidfileArg,
|
||||
checkConfigArg,
|
||||
noCheckUpdateArg,
|
||||
disableMemoryOptimizationArg,
|
||||
noEtcHostsArg,
|
||||
localFrontendArg,
|
||||
verboseArg,
|
||||
glinetArg,
|
||||
versionArg,
|
||||
helpArg,
|
||||
}
|
||||
}
|
||||
os.Exit(0)
|
||||
|
||||
func getUsageLines(exec string, args []arg) []string {
|
||||
usage := []string{
|
||||
"Usage:",
|
||||
"",
|
||||
fmt.Sprintf("%s [options]", exec),
|
||||
"",
|
||||
"Options:",
|
||||
}
|
||||
for _, arg := range args {
|
||||
return nil
|
||||
}, nil
|
||||
},
|
||||
serialize: func(o options) (val string, ok bool) { return "", false },
|
||||
description: "Show the version and exit. Show more detailed version description with -v.",
|
||||
longName: "version",
|
||||
shortName: "",
|
||||
}}
|
||||
|
||||
// printHelp prints the entire help message. It exits with an error code if
|
||||
// there are any I/O errors.
|
||||
func printHelp(exec string) {
|
||||
b := &strings.Builder{}
|
||||
|
||||
stringutil.WriteToBuilder(
|
||||
b,
|
||||
"Usage:\n\n",
|
||||
fmt.Sprintf("%s [options]\n\n", exec),
|
||||
"Options:\n",
|
||||
)
|
||||
|
||||
var err error
|
||||
for _, opt := range cmdLineOpts {
|
||||
val := ""
|
||||
if arg.updateWithValue != nil {
|
||||
if opt.updateWithValue != nil {
|
||||
val = " VALUE"
|
||||
}
|
||||
if arg.shortName != "" {
|
||||
usage = append(usage, fmt.Sprintf(" -%s, %-30s %s",
|
||||
arg.shortName,
|
||||
"--"+arg.longName+val,
|
||||
arg.description))
|
||||
|
||||
longDesc := opt.longName + val
|
||||
if opt.shortName != "" {
|
||||
_, err = fmt.Fprintf(b, " -%s, --%-28s %s\n", opt.shortName, longDesc, opt.description)
|
||||
} else {
|
||||
usage = append(usage, fmt.Sprintf(" %-34s %s",
|
||||
"--"+arg.longName+val,
|
||||
arg.description))
|
||||
_, err = fmt.Fprintf(b, " --%-32s %s\n", longDesc, opt.description)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
// The only error here can be from incorrect Fprintf usage, which is
|
||||
// a programmer error.
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
return usage
|
||||
|
||||
_, err = fmt.Print(b)
|
||||
if err != nil {
|
||||
// Exit immediately, since not being able to print out a help message
|
||||
// essentially means that the I/O is very broken at the moment.
|
||||
exitWithError()
|
||||
}
|
||||
}
|
||||
|
||||
func printHelp(exec string) error {
|
||||
for _, line := range getUsageLines(exec, args) {
|
||||
_, err := fmt.Println(line)
|
||||
// parseCmdOpts parses the command-line arguments into options and effects.
|
||||
func parseCmdOpts(cmdName string, args []string) (o options, eff effect, err error) {
|
||||
// Don't use range since the loop changes the loop variable.
|
||||
argsLen := len(args)
|
||||
for i := 0; i < len(args); i++ {
|
||||
arg := args[i]
|
||||
isKnown := false
|
||||
for _, opt := range cmdLineOpts {
|
||||
isKnown = argMatches(opt, arg)
|
||||
if !isKnown {
|
||||
continue
|
||||
}
|
||||
|
||||
if opt.updateWithValue != nil {
|
||||
i++
|
||||
if i >= argsLen {
|
||||
return o, eff, fmt.Errorf("got %s without argument", arg)
|
||||
}
|
||||
|
||||
o, err = opt.updateWithValue(o, args[i])
|
||||
} else {
|
||||
o, eff, err = updateOptsNoValue(o, eff, opt, cmdName)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return o, eff, fmt.Errorf("applying option %s: %w", arg, err)
|
||||
}
|
||||
|
||||
break
|
||||
}
|
||||
|
||||
if !isKnown {
|
||||
return o, eff, fmt.Errorf("unknown option %s", arg)
|
||||
}
|
||||
}
|
||||
|
||||
return o, eff, err
|
||||
}
|
||||
|
||||
// argMatches returns true if arg matches command-line option opt.
|
||||
func argMatches(opt cmdLineOpt, arg string) (ok bool) {
|
||||
if arg == "" || arg[0] != '-' {
|
||||
return false
|
||||
}
|
||||
|
||||
arg = arg[1:]
|
||||
if arg == "" {
|
||||
return false
|
||||
}
|
||||
|
||||
return (opt.shortName != "" && arg == opt.shortName) ||
|
||||
(arg[0] == '-' && arg[1:] == opt.longName)
|
||||
}
|
||||
|
||||
// updateOptsNoValue sets values or effects from opt into o or prev.
|
||||
func updateOptsNoValue(
|
||||
o options,
|
||||
prev effect,
|
||||
opt cmdLineOpt,
|
||||
cmdName string,
|
||||
) (updated options, chained effect, err error) {
|
||||
if opt.updateNoValue != nil {
|
||||
o, err = opt.updateNoValue(o)
|
||||
if err != nil {
|
||||
return o, prev, err
|
||||
}
|
||||
|
||||
return o, prev, nil
|
||||
}
|
||||
|
||||
next, err := opt.effect(o, cmdName)
|
||||
if err != nil {
|
||||
return o, prev, err
|
||||
}
|
||||
|
||||
chained = chainEffect(prev, next)
|
||||
|
||||
return o, chained, nil
|
||||
}
|
||||
|
||||
// chainEffect chans the next effect after the prev one. If prev is nil, eff
|
||||
// only calls next. If next is nil, eff is prev; if prev is nil, eff is next.
|
||||
func chainEffect(prev, next effect) (eff effect) {
|
||||
if prev == nil {
|
||||
return next
|
||||
} else if next == nil {
|
||||
return prev
|
||||
}
|
||||
|
||||
eff = func() (err error) {
|
||||
err = prev()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return next()
|
||||
}
|
||||
return nil
|
||||
|
||||
return eff
|
||||
}
|
||||
|
||||
func argMatches(a arg, v string) bool {
|
||||
return v == "--"+a.longName || (a.shortName != "" && v == "-"+a.shortName)
|
||||
}
|
||||
|
||||
func parse(exec string, ss []string) (o options, f effect, err error) {
|
||||
for i := 0; i < len(ss); i++ {
|
||||
v := ss[i]
|
||||
knownParam := false
|
||||
for _, arg := range args {
|
||||
if argMatches(arg, v) {
|
||||
if arg.updateWithValue != nil {
|
||||
if i+1 >= len(ss) {
|
||||
return o, f, fmt.Errorf("got %s without argument", v)
|
||||
}
|
||||
i++
|
||||
o, err = arg.updateWithValue(o, ss[i])
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
} else if arg.updateNoValue != nil {
|
||||
o, err = arg.updateNoValue(o)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
} else if arg.effect != nil {
|
||||
var eff effect
|
||||
eff, err = arg.effect(o, exec)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
if eff != nil {
|
||||
prevf := f
|
||||
f = func() (ferr error) {
|
||||
if prevf != nil {
|
||||
ferr = prevf()
|
||||
}
|
||||
if ferr == nil {
|
||||
ferr = eff()
|
||||
}
|
||||
return ferr
|
||||
}
|
||||
}
|
||||
}
|
||||
knownParam = true
|
||||
break
|
||||
}
|
||||
// optsToArgs converts command line options into a list of arguments.
|
||||
func optsToArgs(o options) (args []string) {
|
||||
for _, opt := range cmdLineOpts {
|
||||
val, ok := opt.serialize(o)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
if !knownParam {
|
||||
return o, f, fmt.Errorf("unknown option %v", v)
|
||||
|
||||
if opt.shortName != "" {
|
||||
args = append(args, "-"+opt.shortName)
|
||||
} else {
|
||||
args = append(args, "--"+opt.longName)
|
||||
}
|
||||
|
||||
if val != "" {
|
||||
args = append(args, val)
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func shortestFlag(a arg) string {
|
||||
if a.shortName != "" {
|
||||
return "-" + a.shortName
|
||||
}
|
||||
return "--" + a.longName
|
||||
}
|
||||
|
||||
func serialize(o options) []string {
|
||||
ss := []string{}
|
||||
for _, arg := range args {
|
||||
s := arg.serialize(o)
|
||||
if s != nil {
|
||||
ss = append(ss, append([]string{shortestFlag(arg)}, s...)...)
|
||||
}
|
||||
}
|
||||
return ss
|
||||
return args
|
||||
}
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ import (
|
|||
func testParseOK(t *testing.T, ss ...string) options {
|
||||
t.Helper()
|
||||
|
||||
o, _, err := parse("", ss)
|
||||
o, _, err := parseCmdOpts("", ss)
|
||||
require.NoError(t, err)
|
||||
|
||||
return o
|
||||
|
|
@ -21,7 +21,7 @@ func testParseOK(t *testing.T, ss ...string) options {
|
|||
func testParseErr(t *testing.T, descr string, ss ...string) {
|
||||
t.Helper()
|
||||
|
||||
_, _, err := parse("", ss)
|
||||
_, _, err := parseCmdOpts("", ss)
|
||||
require.Error(t, err)
|
||||
}
|
||||
|
||||
|
|
@ -38,11 +38,11 @@ func TestParseVerbose(t *testing.T) {
|
|||
}
|
||||
|
||||
func TestParseConfigFilename(t *testing.T) {
|
||||
assert.Equal(t, "", testParseOK(t).configFilename, "empty is no config filename")
|
||||
assert.Equal(t, "path", testParseOK(t, "-c", "path").configFilename, "-c is config filename")
|
||||
assert.Equal(t, "", testParseOK(t).confFilename, "empty is no config filename")
|
||||
assert.Equal(t, "path", testParseOK(t, "-c", "path").confFilename, "-c is config filename")
|
||||
testParseParamMissing(t, "-c")
|
||||
|
||||
assert.Equal(t, "path", testParseOK(t, "--config", "path").configFilename, "--config is config filename")
|
||||
assert.Equal(t, "path", testParseOK(t, "--config", "path").confFilename, "--config is config filename")
|
||||
testParseParamMissing(t, "--config")
|
||||
}
|
||||
|
||||
|
|
@ -103,7 +103,7 @@ func TestParseDisableUpdate(t *testing.T) {
|
|||
|
||||
// TODO(e.burkov): Remove after v0.108.0.
|
||||
func TestParseDisableMemoryOptimization(t *testing.T) {
|
||||
o, eff, err := parse("", []string{"--no-mem-optimization"})
|
||||
o, eff, err := parseCmdOpts("", []string{"--no-mem-optimization"})
|
||||
require.NoError(t, err)
|
||||
|
||||
assert.Nil(t, eff)
|
||||
|
|
@ -130,73 +130,73 @@ func TestParseUnknown(t *testing.T) {
|
|||
testParseErr(t, "unknown dash", "-")
|
||||
}
|
||||
|
||||
func TestSerialize(t *testing.T) {
|
||||
func TestOptsToArgs(t *testing.T) {
|
||||
testCases := []struct {
|
||||
name string
|
||||
args []string
|
||||
opts options
|
||||
ss []string
|
||||
}{{
|
||||
name: "empty",
|
||||
args: []string{},
|
||||
opts: options{},
|
||||
ss: []string{},
|
||||
}, {
|
||||
name: "config_filename",
|
||||
opts: options{configFilename: "path"},
|
||||
ss: []string{"-c", "path"},
|
||||
args: []string{"-c", "path"},
|
||||
opts: options{confFilename: "path"},
|
||||
}, {
|
||||
name: "work_dir",
|
||||
args: []string{"-w", "path"},
|
||||
opts: options{workDir: "path"},
|
||||
ss: []string{"-w", "path"},
|
||||
}, {
|
||||
name: "bind_host",
|
||||
args: []string{"-h", "1.2.3.4"},
|
||||
opts: options{bindHost: net.IP{1, 2, 3, 4}},
|
||||
ss: []string{"-h", "1.2.3.4"},
|
||||
}, {
|
||||
name: "bind_port",
|
||||
args: []string{"-p", "666"},
|
||||
opts: options{bindPort: 666},
|
||||
ss: []string{"-p", "666"},
|
||||
}, {
|
||||
name: "log_file",
|
||||
args: []string{"-l", "path"},
|
||||
opts: options{logFile: "path"},
|
||||
ss: []string{"-l", "path"},
|
||||
}, {
|
||||
name: "pid_file",
|
||||
args: []string{"--pidfile", "path"},
|
||||
opts: options{pidFile: "path"},
|
||||
ss: []string{"--pidfile", "path"},
|
||||
}, {
|
||||
name: "disable_update",
|
||||
args: []string{"--no-check-update"},
|
||||
opts: options{disableUpdate: true},
|
||||
ss: []string{"--no-check-update"},
|
||||
}, {
|
||||
name: "control_action",
|
||||
args: []string{"-s", "run"},
|
||||
opts: options{serviceControlAction: "run"},
|
||||
ss: []string{"-s", "run"},
|
||||
}, {
|
||||
name: "glinet_mode",
|
||||
args: []string{"--glinet"},
|
||||
opts: options{glinetMode: true},
|
||||
ss: []string{"--glinet"},
|
||||
}, {
|
||||
name: "multiple",
|
||||
opts: options{
|
||||
serviceControlAction: "run",
|
||||
configFilename: "config",
|
||||
workDir: "work",
|
||||
pidFile: "pid",
|
||||
disableUpdate: true,
|
||||
},
|
||||
ss: []string{
|
||||
args: []string{
|
||||
"-c", "config",
|
||||
"-w", "work",
|
||||
"-s", "run",
|
||||
"--pidfile", "pid",
|
||||
"--no-check-update",
|
||||
},
|
||||
opts: options{
|
||||
serviceControlAction: "run",
|
||||
confFilename: "config",
|
||||
workDir: "work",
|
||||
pidFile: "pid",
|
||||
disableUpdate: true,
|
||||
},
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
result := serialize(tc.opts)
|
||||
assert.ElementsMatch(t, tc.ss, result)
|
||||
result := optsToArgs(tc.opts)
|
||||
assert.ElementsMatch(t, tc.args, result)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -197,7 +197,7 @@ func handleServiceControlAction(opts options, clientBuildFS fs.FS) {
|
|||
DisplayName: serviceDisplayName,
|
||||
Description: serviceDescription,
|
||||
WorkingDirectory: pwd,
|
||||
Arguments: serialize(runOpts),
|
||||
Arguments: optsToArgs(runOpts),
|
||||
}
|
||||
configureService(svcConfig)
|
||||
|
||||
|
|
|
|||
|
|
@ -223,8 +223,7 @@ govulncheck ./...
|
|||
|
||||
# Apply more lax standards to the code we haven't properly refactored yet.
|
||||
gocyclo --over 17 ./internal/querylog/
|
||||
gocyclo --over 15 ./internal/home/ ./internal/dhcpd
|
||||
gocyclo --over 13 ./internal/filtering/
|
||||
gocyclo --over 13 ./internal/dhcpd ./internal/filtering/ ./internal/home/
|
||||
|
||||
# Apply stricter standards to new or somewhat refactored code.
|
||||
gocyclo --over 10 ./internal/aghio/ ./internal/aghnet/ ./internal/aghos/\
|
||||
|
|
|
|||
Loading…
Reference in a new issue