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2
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3 values
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1 value
meta_information
dict
q11700
CommitsAfterDate
train
func (repo *Repository) CommitsAfterDate(date string) (*list.List, error) { stdout, err := NewCommand("log", _PRETTY_LOG_FORMAT, "--since="+date).RunInDirBytes(repo.Path) if err != nil { return nil, err } return repo.parsePrettyFormatLogToList(stdout) }
go
{ "resource": "" }
q11701
GetTag
train
func (repo *Repository) GetTag(name string) (*Tag, error) { stdout, err := NewCommand("show-ref", "--tags", name).RunInDir(repo.Path) if err != nil { return nil, err } id, err := NewIDFromString(strings.Split(stdout, " ")[0]) if err != nil { return nil, err } tag, err := repo.getTag(id) if err != nil { return nil, err } tag.Name = name return tag, nil }
go
{ "resource": "" }
q11702
GetTags
train
func (repo *Repository) GetTags() ([]string, error) { cmd := NewCommand("tag", "-l") if version.Compare(gitVersion, "2.4.9", ">=") { cmd.AddArguments("--sort=-creatordate") } stdout, err := cmd.RunInDir(repo.Path) if err != nil { return nil, err } tags := strings.Split(stdout, "\n") tags = tags[:len(tags)-1] if version.Compare(gitVersion, "2.4.9", "<") { version.Sort(tags) // Reverse order for i := 0; i < len(tags)/2; i++ { j := len(tags) - i - 1 tags[i], tags[j] = tags[j], tags[i] } } return tags, nil }
go
{ "resource": "" }
q11703
DeleteTag
train
func (repo *Repository) DeleteTag(name string) error { cmd := NewCommand("tag", "-d") cmd.AddArguments(name) _, err := cmd.RunInDir(repo.Path) return err }
go
{ "resource": "" }
q11704
UnescapeChars
train
func UnescapeChars(in []byte) []byte { // LEGACY [Go 1.7]: use more expressive bytes.ContainsAny if bytes.IndexAny(in, "\\\t") == -1 { return in } out := bytes.Replace(in, escapedSlash, regularSlash, -1) out = bytes.Replace(out, escapedTab, regularTab, -1) return out }
go
{ "resource": "" }
q11705
ListEntries
train
func (t *Tree) ListEntries() (Entries, error) { if t.entriesParsed { return t.entries, nil } t.entriesParsed = true stdout, err := NewCommand("ls-tree", t.ID.String()).RunInDirBytes(t.repo.Path) if err != nil { return nil, err } t.entries, err = parseTreeData(t, stdout) return t.entries, err }
go
{ "resource": "" }
q11706
IsRepoURLAccessible
train
func IsRepoURLAccessible(opts NetworkOptions) bool { cmd := NewCommand("ls-remote", "-q", "-h", opts.URL, "HEAD") if opts.Timeout <= 0 { opts.Timeout = -1 } _, err := cmd.RunTimeout(opts.Timeout) if err != nil { return false } return true }
go
{ "resource": "" }
q11707
InitRepository
train
func InitRepository(repoPath string, bare bool) error { os.MkdirAll(repoPath, os.ModePerm) cmd := NewCommand("init") if bare { cmd.AddArguments("--bare") } _, err := cmd.RunInDir(repoPath) return err }
go
{ "resource": "" }
q11708
OpenRepository
train
func OpenRepository(repoPath string) (*Repository, error) { repoPath, err := filepath.Abs(repoPath) if err != nil { return nil, err } else if !isDir(repoPath) { return nil, errors.New("no such file or directory") } return &Repository{ Path: repoPath, commitCache: newObjectCache(), tagCache: newObjectCache(), }, nil }
go
{ "resource": "" }
q11709
Clone
train
func Clone(from, to string, opts CloneRepoOptions) (err error) { toDir := path.Dir(to) if err = os.MkdirAll(toDir, os.ModePerm); err != nil { return err } cmd := NewCommand("clone") if opts.Mirror { cmd.AddArguments("--mirror") } if opts.Bare { cmd.AddArguments("--bare") } if opts.Quiet { cmd.AddArguments("--quiet") } if len(opts.Branch) > 0 { cmd.AddArguments("-b", opts.Branch) } cmd.AddArguments(from, to) if opts.Timeout <= 0 { opts.Timeout = -1 } _, err = cmd.RunTimeout(opts.Timeout) return err }
go
{ "resource": "" }
q11710
Fetch
train
func Fetch(repoPath string, opts FetchRemoteOptions) error { cmd := NewCommand("fetch") if opts.Prune { cmd.AddArguments("--prune") } if opts.Timeout <= 0 { opts.Timeout = -1 } _, err := cmd.RunInDirTimeout(opts.Timeout, repoPath) return err }
go
{ "resource": "" }
q11711
Pull
train
func Pull(repoPath string, opts PullRemoteOptions) error { cmd := NewCommand("pull") if opts.Rebase { cmd.AddArguments("--rebase") } if opts.All { cmd.AddArguments("--all") } else { cmd.AddArguments(opts.Remote) cmd.AddArguments(opts.Branch) } if opts.Timeout <= 0 { opts.Timeout = -1 } _, err := cmd.RunInDirTimeout(opts.Timeout, repoPath) return err }
go
{ "resource": "" }
q11712
PushWithEnvs
train
func PushWithEnvs(repoPath, remote, branch string, envs []string) error { _, err := NewCommand("push", remote, branch).AddEnvs(envs...).RunInDir(repoPath) return err }
go
{ "resource": "" }
q11713
Push
train
func Push(repoPath, remote, branch string) error { return PushWithEnvs(repoPath, remote, branch, nil) }
go
{ "resource": "" }
q11714
Checkout
train
func Checkout(repoPath string, opts CheckoutOptions) error { cmd := NewCommand("checkout") if len(opts.OldBranch) > 0 { cmd.AddArguments("-b") } cmd.AddArguments(opts.Branch) if len(opts.OldBranch) > 0 { cmd.AddArguments(opts.OldBranch) } if opts.Timeout <= 0 { opts.Timeout = -1 } _, err := cmd.RunInDirTimeout(opts.Timeout, repoPath) return err }
go
{ "resource": "" }
q11715
ResetHEAD
train
func ResetHEAD(repoPath string, hard bool, revision string) error { cmd := NewCommand("reset") if hard { cmd.AddArguments("--hard") } _, err := cmd.AddArguments(revision).RunInDir(repoPath) return err }
go
{ "resource": "" }
q11716
MoveFile
train
func MoveFile(repoPath, oldTreeName, newTreeName string) error { _, err := NewCommand("mv").AddArguments(oldTreeName, newTreeName).RunInDir(repoPath) return err }
go
{ "resource": "" }
q11717
GetRepoSize
train
func GetRepoSize(repoPath string) (*CountObject, error) { cmd := NewCommand("count-objects", "-v") stdout, err := cmd.RunInDir(repoPath) if err != nil { return nil, err } countObject := new(CountObject) for _, line := range strings.Split(stdout, "\n") { switch { case strings.HasPrefix(line, _STAT_COUNT): countObject.Count = com.StrTo(line[7:]).MustInt64() case strings.HasPrefix(line, _STAT_SIZE): countObject.Size = com.StrTo(line[6:]).MustInt64() * 1024 case strings.HasPrefix(line, _STAT_IN_PACK): countObject.InPack = com.StrTo(line[9:]).MustInt64() case strings.HasPrefix(line, _STAT_PACKS): countObject.Packs = com.StrTo(line[7:]).MustInt64() case strings.HasPrefix(line, _STAT_SIZE_PACK): countObject.SizePack = com.StrTo(line[11:]).MustInt64() * 1024 case strings.HasPrefix(line, _STAT_PRUNE_PACKABLE): countObject.PrunePackable = com.StrTo(line[16:]).MustInt64() case strings.HasPrefix(line, _STAT_GARBAGE): countObject.Garbage = com.StrTo(line[9:]).MustInt64() case strings.HasPrefix(line, _STAT_SIZE_GARBAGE): countObject.SizeGarbage = com.StrTo(line[14:]).MustInt64() * 1024 } } return countObject, nil }
go
{ "resource": "" }
q11718
UsingClient
train
func UsingClient(httpClient *http.Client) Option { return func(c *Client) { if httpClient == nil { return } transport := getTransportLayer(httpClient, 0) httpClient.Transport = transport c.client = httpClient } }
go
{ "resource": "" }
q11719
NewClient
train
func NewClient(baseURL string, options ...Option) (*Client, error) { baseURL = formatBaseURL(baseURL) if _, err := url.Parse(baseURL); err != nil { return nil, err } c := &Client{baseURL: baseURL} for _, opt := range options { opt(c) } if c.client == nil { httpClient := &http.Client{} UsingClient(httpClient)(c) } return c, nil }
go
{ "resource": "" }
q11720
IsSubjectNotFound
train
func IsSubjectNotFound(err error) bool { if err == nil { return false } if resErr, ok := err.(ResourceError); ok { return resErr.ErrorCode == subjectNotFoundCode } return false }
go
{ "resource": "" }
q11721
IsSchemaNotFound
train
func IsSchemaNotFound(err error) bool { if err == nil { return false } if resErr, ok := err.(ResourceError); ok { return resErr.ErrorCode == schemaNotFoundCode } return false }
go
{ "resource": "" }
q11722
Versions
train
func (c *Client) Versions(subject string) (versions []int, err error) { if subject == "" { err = errRequired("subject") return } // # List all versions of a particular subject // GET /subjects/(string: subject)/versions path := fmt.Sprintf(subjectPath, subject+"/versions") resp, respErr := c.do(http.MethodGet, path, "", nil) if respErr != nil { err = respErr return } err = c.readJSON(resp, &versions) return }
go
{ "resource": "" }
q11723
IsRegistered
train
func (c *Client) IsRegistered(subject, schema string) (bool, Schema, error) { var fs Schema sc := schemaOnlyJSON{schema} send, err := json.Marshal(sc) if err != nil { return false, fs, err } path := fmt.Sprintf(subjectPath, subject) resp, err := c.do(http.MethodPost, path, "", send) if err != nil { // schema not found? if IsSchemaNotFound(err) { return false, fs, nil } // error? return false, fs, err } if err = c.readJSON(resp, &fs); err != nil { return true, fs, err // found but error when unmarshal. } // so we have a schema. return true, fs, nil }
go
{ "resource": "" }
q11724
GetSchemaBySubject
train
func (c *Client) GetSchemaBySubject(subject string, versionID int) (Schema, error) { return c.getSubjectSchemaAtVersion(subject, versionID) }
go
{ "resource": "" }
q11725
getConfigSubject
train
func (c *Client) getConfigSubject(subject string) (Config, error) { var err error var config = Config{} path := fmt.Sprintf("/config/%s", subject) resp, respErr := c.do(http.MethodGet, path, "", nil) if respErr != nil && respErr.(ResourceError).ErrorCode != 404 { return config, respErr } if resp != nil { err = c.readJSON(resp, &config) } return config, err }
go
{ "resource": "" }
q11726
IsSchemaCompatible
train
func (c *Client) IsSchemaCompatible(subject string, avroSchema string, versionID int) (bool, error) { return c.isSchemaCompatibleAtVersion(subject, avroSchema, versionID) }
go
{ "resource": "" }
q11727
Set
train
func (i *Int64Value) Set(s string) error { v, err := strconv.ParseInt(s, 0, 64) *i = Int64Value(v) return err }
go
{ "resource": "" }
q11728
Set
train
func (i *UintValue) Set(s string) error { v, err := strconv.ParseUint(s, 0, 64) *i = UintValue(v) return err }
go
{ "resource": "" }
q11729
Set
train
func (s *StringValue) Set(val string) error { *s = StringValue(val) return nil }
go
{ "resource": "" }
q11730
Set
train
func (d *Duration) Set(s string) error { if v, err := strconv.ParseInt(s, 10, 64); err == nil { *d = Duration(time.Duration(v) * time.Second) return nil } v, err := time.ParseDuration(s) *d = Duration(v) return err }
go
{ "resource": "" }
q11731
UnmarshalText
train
func (d *Duration) UnmarshalText(text []byte) error { return d.Set(string(text)) }
go
{ "resource": "" }
q11732
MarshalJSON
train
func (d *Duration) MarshalJSON() ([]byte, error) { return json.Marshal(time.Duration(*d)) }
go
{ "resource": "" }
q11733
UnmarshalJSON
train
func (d *Duration) UnmarshalJSON(text []byte) error { if v, err := strconv.ParseInt(string(text), 10, 64); err == nil { *d = Duration(time.Duration(v)) return nil } // We use json unmarshal on value because we have the quoted version var value string err := json.Unmarshal(text, &value) if err != nil { return err } v, err := time.ParseDuration(value) *d = Duration(v) return err }
go
{ "resource": "" }
q11734
Set
train
func (t *TimeValue) Set(s string) error { v, err := time.Parse(time.RFC3339, s) *t = TimeValue(v) return err }
go
{ "resource": "" }
q11735
Set
train
func (s *SliceStrings) Set(str string) error { fargs := func(c rune) bool { return c == ',' || c == ';' } // get function slice := strings.FieldsFunc(str, fargs) *s = append(*s, slice...) return nil }
go
{ "resource": "" }
q11736
getTypesRecursive
train
func getTypesRecursive(objValue reflect.Value, flagMap map[string]reflect.StructField, key string) error { name := key switch objValue.Kind() { case reflect.Struct: for i := 0; i < objValue.NumField(); i++ { if objValue.Type().Field(i).Anonymous { if err := getTypesRecursive(objValue.Field(i), flagMap, name); err != nil { return err } } else if len(objValue.Type().Field(i).Tag.Get("description")) > 0 { fieldName := objValue.Type().Field(i).Name if !isExported(fieldName) { return fmt.Errorf("field %s is an unexported field", fieldName) } if tag := objValue.Type().Field(i).Tag.Get("long"); len(tag) > 0 { fieldName = tag } if len(key) == 0 { name = strings.ToLower(fieldName) } else { name = key + "." + strings.ToLower(fieldName) } if _, ok := flagMap[name]; ok { return fmt.Errorf("tag already exists: %s", name) } flagMap[name] = objValue.Type().Field(i) if err := getTypesRecursive(objValue.Field(i), flagMap, name); err != nil { return err } } } case reflect.Ptr: if len(key) > 0 { field := flagMap[name] field.Type = reflect.TypeOf(false) flagMap[name] = field } typ := objValue.Type().Elem() inst := reflect.New(typ).Elem() if err := getTypesRecursive(inst, flagMap, name); err != nil { return err } default: return nil } return nil }
go
{ "resource": "" }
q11737
GetBoolFlags
train
func GetBoolFlags(config interface{}) ([]string, error) { flagMap := make(map[string]reflect.StructField) if err := getTypesRecursive(reflect.ValueOf(config), flagMap, ""); err != nil { return []string{}, err } flags := make([]string, 0, len(flagMap)) for f, structField := range flagMap { if structField.Type.Kind() == reflect.Bool { flags = append(flags, f) } } return flags, nil }
go
{ "resource": "" }
q11738
GetFlags
train
func GetFlags(config interface{}) ([]string, error) { flagMap := make(map[string]reflect.StructField) if err := getTypesRecursive(reflect.ValueOf(config), flagMap, ""); err != nil { return []string{}, err } flags := make([]string, 0, len(flagMap)) for f := range flagMap { flags = append(flags, f) } return flags, nil }
go
{ "resource": "" }
q11739
setPointersNil
train
func setPointersNil(objValue reflect.Value) (reflect.Value, error) { switch { case objValue.Kind() != reflect.Ptr: return objValue, fmt.Errorf("parameters objValue must be a not-nil pointer on a struct, not a %s", objValue.Kind()) case objValue.IsNil(): return objValue, errors.New("parameters objValue must be a not-nil pointer") case objValue.Elem().Kind() != reflect.Struct: // fmt.Printf("Parameters objValue must be a not-nil pointer on a struct, not a pointer on a %s\n", objValue.Elem().Kind().String()) return objValue, nil } // Clone starObjValue := objValue.Elem() nilPointersObjVal := reflect.New(starObjValue.Type()) starNilPointersObjVal := nilPointersObjVal.Elem() starNilPointersObjVal.Set(starObjValue) for i := 0; i < nilPointersObjVal.Elem().NumField(); i++ { if field := nilPointersObjVal.Elem().Field(i); field.Kind() == reflect.Ptr && field.CanSet() { field.Set(reflect.Zero(field.Type())) } } return nilPointersObjVal, nil }
go
{ "resource": "" }
q11740
setFields
train
func setFields(fieldValue reflect.Value, val parse.Parser) error { if fieldValue.CanSet() { fieldValue.Set(reflect.ValueOf(val).Elem().Convert(fieldValue.Type())) } else { return fmt.Errorf("%s is not settable", fieldValue.Type().String()) } return nil }
go
{ "resource": "" }
q11741
PrintHelp
train
func PrintHelp(flagMap map[string]reflect.StructField, defaultValmap map[string]reflect.Value, parsers map[reflect.Type]parse.Parser) error { return PrintHelpWithCommand(flagMap, defaultValmap, parsers, nil, nil) }
go
{ "resource": "" }
q11742
PrintError
train
func PrintError(err error, flagMap map[string]reflect.StructField, defaultValmap map[string]reflect.Value, parsers map[reflect.Type]parse.Parser) error { if err != flag.ErrHelp { fmt.Printf("Error: %s\n", err) } if !strings.Contains(err.Error(), ":No parser for type") { _ = PrintHelp(flagMap, defaultValmap, parsers) } return err }
go
{ "resource": "" }
q11743
PrintHelpWithCommand
train
func PrintHelpWithCommand(flagMap map[string]reflect.StructField, defaultValMap map[string]reflect.Value, parsers map[reflect.Type]parse.Parser, cmd *Command, subCmd []*Command) error { // Hide command from help if cmd != nil && cmd.HideHelp { return fmt.Errorf("command %s not found", cmd.Name) } // Define a templates // Using POSXE STD : http://pubs.opengroup.org/onlinepubs/9699919799/ const helper = `{{if .ProgDescription}}{{.ProgDescription}} {{end}}Usage: {{.ProgName}} [flags] <command> [<arguments>] Use "{{.ProgName}} <command> --help" for help on any command. {{if .SubCommands}} Commands:{{range $subCmdName, $subCmdDesc := .SubCommands}} {{printf "\t%-50s %s" $subCmdName $subCmdDesc}}{{end}} {{end}} Flag's usage: {{.ProgName}} [--flag=flag_argument] [-f[flag_argument]] ... set flag_argument to flag(s) or: {{.ProgName}} [--flag[=true|false| ]] [-f[true|false| ]] ... set true/false to boolean flag(s) Flags: ` // Use a struct to give data to template type TempStruct struct { ProgName string ProgDescription string SubCommands map[string]string } tempStruct := TempStruct{} if cmd != nil { tempStruct.ProgName = cmd.Name tempStruct.ProgDescription = cmd.Description tempStruct.SubCommands = map[string]string{} if len(subCmd) > 1 && cmd == subCmd[0] { for _, c := range subCmd[1:] { if !c.HideHelp { tempStruct.SubCommands[c.Name] = c.Description } } } } else { _, tempStruct.ProgName = path.Split(os.Args[0]) } // Run Template tmplHelper, err := template.New("helper").Parse(helper) if err != nil { return err } err = tmplHelper.Execute(os.Stdout, tempStruct) if err != nil { return err } return printFlagsDescriptionsDefaultValues(flagMap, defaultValMap, parsers, os.Stdout) }
go
{ "resource": "" }
q11744
PrintErrorWithCommand
train
func PrintErrorWithCommand(err error, flagMap map[string]reflect.StructField, defaultValMap map[string]reflect.Value, parsers map[reflect.Type]parse.Parser, cmd *Command, subCmd []*Command) error { if err != flag.ErrHelp { fmt.Printf("Error here : %s\n", err) } if errHelp := PrintHelpWithCommand(flagMap, defaultValMap, parsers, cmd, subCmd); errHelp != nil { return errHelp } return err }
go
{ "resource": "" }
q11745
New
train
func New(rootCommand *Command, args []string) *Flaeg { var f Flaeg f.commands = []*Command{rootCommand} f.args = args f.customParsers = map[reflect.Type]parse.Parser{} return &f }
go
{ "resource": "" }
q11746
AddCommand
train
func (f *Flaeg) AddCommand(command *Command) { f.commands = append(f.commands, command) }
go
{ "resource": "" }
q11747
AddParser
train
func (f *Flaeg) AddParser(typ reflect.Type, parser parse.Parser) { f.customParsers[typ] = parser }
go
{ "resource": "" }
q11748
Run
train
func (f *Flaeg) Run() error { if f.calledCommand == nil { if _, _, err := f.findCommandWithCommandArgs(); err != nil { return err } } if _, err := f.Parse(f.calledCommand); err != nil { return err } return f.calledCommand.Run() }
go
{ "resource": "" }
q11749
HealthCheck
train
func (d *DockerDiscovery) HealthCheck(svc *service.Service) (string, string) { container, err := d.inspectContainer(svc) if err != nil { return "", "" } return container.Config.Labels["HealthCheck"], container.Config.Labels["HealthCheckArgs"] }
go
{ "resource": "" }
q11750
Run
train
func (d *DockerDiscovery) Run(looper director.Looper) { connQuitChan := make(chan bool) go d.manageConnection(connQuitChan) go func() { // Loop around, process any events which came in, and // periodically fetch the whole container list looper.Loop(func() error { select { case event := <-d.events: if event == nil { // This usually happens because of a Docker restart. // Sleep, let us reconnect in the background, then loop. return nil } log.Debugf("Event: %#v\n", event) d.handleEvent(*event) case <-time.After(d.sleepInterval): d.getContainers() case <-time.After(CacheDrainInterval): d.containerCache.Drain(len(d.services)) } return nil }) // Propagate quit channel message close(connQuitChan) }() }
go
{ "resource": "" }
q11751
Services
train
func (d *DockerDiscovery) Services() []service.Service { d.RLock() defer d.RUnlock() svcList := make([]service.Service, len(d.services)) for i, svc := range d.services { svcList[i] = *svc } return svcList }
go
{ "resource": "" }
q11752
Listeners
train
func (d *DockerDiscovery) Listeners() []ChangeListener { var listeners []ChangeListener for _, cntnr := range d.services { container, err := d.inspectContainer(cntnr) if err != nil { continue } listener := d.listenerForContainer(container) if listener != nil { listeners = append(listeners, *listener) } } return listeners }
go
{ "resource": "" }
q11753
listenerForContainer
train
func (d *DockerDiscovery) listenerForContainer(cntnr *docker.Container) *ChangeListener { // See if the container has the SidecarListener label, which // will tell us the ServicePort of the port that should be // subscribed to Sidecar events. svcPortStr, ok := cntnr.Config.Labels["SidecarListener"] if !ok { return nil } // Be careful about ID matching id := cntnr.ID if len(id) > 12 { id = id[:12] } svc := d.findServiceByID(id) if svc == nil { return nil } listenPort := portForServicePort(svc, svcPortStr, "tcp") // We only do HTTP (TCP) // -1 is returned when there is no match if listenPort == nil { log.Warnf( "SidecarListener label found on %s, but no matching ServicePort! '%s'", svc.ID, svcPortStr, ) return nil } return &ChangeListener{ Name: svc.ListenerName(), Url: fmt.Sprintf("http://%s:%d/sidecar/update", listenPort.IP, listenPort.Port), } }
go
{ "resource": "" }
q11754
portForServicePort
train
func portForServicePort(svc *service.Service, portStr string, pType string) *service.Port { // Look up the ServicePort and translate to Docker port svcPort, err := strconv.ParseInt(portStr, 10, 64) if err != nil { log.Warnf( "SidecarListener label found on %s, can't decode port '%s'", svc.ID, portStr, ) return nil } for _, port := range svc.Ports { if port.ServicePort == svcPort && port.Type == pType { return &port } } return nil }
go
{ "resource": "" }
q11755
Drain
train
func (c *ContainerCache) Drain(newSize int) { c.Lock() defer c.Unlock() // Make a new one, leave the old one for GC c.cache = make(map[string]*docker.Container, newSize) }
go
{ "resource": "" }
q11756
Prune
train
func (c *ContainerCache) Prune(liveContainers map[string]interface{}) { c.Lock() defer c.Unlock() for id := range c.cache { if _, ok := liveContainers[id]; !ok { delete(c.cache, id) } } }
go
{ "resource": "" }
q11757
Get
train
func (c *ContainerCache) Get(svcID string) *docker.Container { c.RLock() defer c.RUnlock() if container, ok := c.cache[svcID]; ok { return container } return nil }
go
{ "resource": "" }
q11758
HealthCheck
train
func (d *MultiDiscovery) HealthCheck(svc *service.Service) (string, string) { for _, disco := range d.Discoverers { if healthCheck, healthCheckArgs := disco.HealthCheck(svc); healthCheck != "" { return healthCheck, healthCheckArgs } } return "", "" }
go
{ "resource": "" }
q11759
Services
train
func (d *MultiDiscovery) Services() []service.Service { var aggregate []service.Service for _, disco := range d.Discoverers { services := disco.Services() if len(services) > 0 { aggregate = append(aggregate, services...) } } return aggregate }
go
{ "resource": "" }
q11760
ShouldNotify
train
func ShouldNotify(oldStatus int, newStatus int) bool { log.Debugf("Checking event. OldStatus: %s NewStatus: %s", service.StatusString(oldStatus), service.StatusString(newStatus), ) // Compare old and new states to find significant changes only switch newStatus { case service.ALIVE: return true case service.TOMBSTONE: return true case service.UNKNOWN: if oldStatus == service.ALIVE { return true } case service.UNHEALTHY: if oldStatus == service.ALIVE { return true } default: log.Errorf("Got unknown service change status: %d", newStatus) return false } log.Debugf("Skipped HAproxy update due to state machine check") return false }
go
{ "resource": "" }
q11761
FetchState
train
func FetchState(url string) (*catalog.ServicesState, error) { client := &http.Client{Timeout: 5 * time.Second} resp, err := client.Get(url) if err != nil { return nil, err } if resp.StatusCode < 200 || resp.StatusCode > 299 { return nil, fmt.Errorf("Bad status code on state fetch: %d", resp.StatusCode) } bytes, err := ioutil.ReadAll(resp.Body) if err != nil { return nil, err } state, err := catalog.Decode(bytes) if err != nil { return nil, err } return state, nil }
go
{ "resource": "" }
q11762
IsSubscribed
train
func (rcvr *Receiver) IsSubscribed(svcName string) bool { // If we didn't specify any specifically, then we want them all if len(rcvr.Subscriptions) < 1 { return true } for _, subName := range rcvr.Subscriptions { if subName == svcName { return true } } return false }
go
{ "resource": "" }
q11763
Subscribe
train
func (rcvr *Receiver) Subscribe(svcName string) { for _, subName := range rcvr.Subscriptions { if subName == svcName { return } } rcvr.Subscriptions = append(rcvr.Subscriptions, svcName) }
go
{ "resource": "" }
q11764
ProcessUpdates
train
func (rcvr *Receiver) ProcessUpdates() { if rcvr.Looper == nil { log.Error("Unable to ProcessUpdates(), Looper is nil in receiver!") return } rcvr.Looper.Loop(func() error { // Batch up to RELOAD_BUFFER number updates into a // single update. first := <-rcvr.ReloadChan pending := len(rcvr.ReloadChan) // Call the callback if rcvr.OnUpdate == nil { log.Error("OnUpdate() callback not defined!") } else { rcvr.StateLock.Lock() // Copy the state while locked so we don't have it change // under us while writing and we don't hold onto the lock the // whole time we're writing to disk (e.g. in haproxy-api). var tmpState *catalog.ServicesState tmpState = deepcopy.Copy(rcvr.CurrentState).(*catalog.ServicesState) rcvr.StateLock.Unlock() rcvr.OnUpdate(tmpState) } // We just flushed the most recent state, dump all the // pending items up to that point. var reload time.Time for i := 0; i < pending; i++ { reload = <-rcvr.ReloadChan } if pending > 0 { log.Infof("Skipped %d messages between %s and %s", pending, first, reload) } // Don't notify more frequently than every RELOAD_HOLD_DOWN period. When a // deployment rolls across the cluster it can trigger a bunch of groupable // updates. The Looper handles the sleep after the return nil. log.Debug("Holding down...") return nil }) }
go
{ "resource": "" }
q11765
FetchInitialState
train
func (rcvr *Receiver) FetchInitialState(stateUrl string) error { rcvr.StateLock.Lock() defer rcvr.StateLock.Unlock() log.Info("Fetching initial state on startup...") state, err := FetchState(stateUrl) if err != nil { return err } else { log.Info("Successfully retrieved state") rcvr.CurrentState = state if rcvr.OnUpdate == nil { log.Error("OnUpdate() callback not defined!") } else { rcvr.OnUpdate(state) } } return nil }
go
{ "resource": "" }
q11766
configureOverrides
train
func configureOverrides(config *Config, opts *CliOpts) { if len(*opts.AdvertiseIP) > 0 { config.Sidecar.AdvertiseIP = *opts.AdvertiseIP } if len(*opts.ClusterIPs) > 0 { config.Sidecar.Seeds = *opts.ClusterIPs } if len(*opts.ClusterName) > 0 { config.Sidecar.ClusterName = *opts.ClusterName } if len(*opts.Discover) > 0 { config.Sidecar.Discovery = *opts.Discover } if len(*opts.LoggingLevel) > 0 { config.Sidecar.LoggingLevel = *opts.LoggingLevel } }
go
{ "resource": "" }
q11767
configureDelegate
train
func configureDelegate(state *catalog.ServicesState, config *Config) *servicesDelegate { delegate := NewServicesDelegate(state) delegate.Metadata = NodeMetadata{ ClusterName: config.Sidecar.ClusterName, State: "Running", } delegate.Start() return delegate }
go
{ "resource": "" }
q11768
configureCpuProfiler
train
func configureCpuProfiler(opts *CliOpts) { if !*opts.CpuProfile { return } var profilerFile os.File // Capture CTRL-C and stop the CPU profiler sigChannel := make(chan os.Signal, 1) signal.Notify(sigChannel, os.Interrupt) go func() { for sig := range sigChannel { log.Printf("Captured %v, stopping profiler and exiting..", sig) pprof.StopCPUProfile() profilerFile.Close() os.Exit(0) } }() // Enable CPU profiling support if requested if *opts.CpuProfile { profilerFile, err := os.Create("sidecar.cpu.prof") exitWithError(err, "Can't write profiling file") pprof.StartCPUProfile(profilerFile) log.Debug("Profiling!") } }
go
{ "resource": "" }
q11769
configureLoggingFormat
train
func configureLoggingFormat(config *Config) { if config.Sidecar.LoggingFormat == "json" { log.SetFormatter(&log.JSONFormatter{}) } else { // Default to verbose timestamping log.SetFormatter(&log.TextFormatter{FullTimestamp: true}) } }
go
{ "resource": "" }
q11770
configureListeners
train
func configureListeners(config *Config, state *catalog.ServicesState) { for _, url := range config.Listeners.Urls { listener := catalog.NewUrlListener(url, false) listener.Watch(state) } }
go
{ "resource": "" }
q11771
NewServer
train
func NewServer(name string) *Server { server := &Server{ Name: name, // Pre-create for 5 services per host Services: make(map[string]*service.Service, 5), LastUpdated: time.Unix(0, 0), LastChanged: time.Unix(0, 0), } return server }
go
{ "resource": "" }
q11772
NewServicesState
train
func NewServicesState() *ServicesState { var err error state := &ServicesState{ Servers: make(map[string]*Server, 5), Broadcasts: make(chan [][]byte), LastChanged: time.Unix(0, 0), tombstoneRetransmit: TOMBSTONE_RETRANSMIT, ServiceMsgs: make(chan service.Service, 25), listeners: make(map[string]Listener), } state.Hostname, err = os.Hostname() if err != nil { log.Errorf("Error getting hostname! %s", err.Error()) } return state }
go
{ "resource": "" }
q11773
ProcessServiceMsgs
train
func (state *ServicesState) ProcessServiceMsgs(looper director.Looper) { looper.Loop(func() error { service := <-state.ServiceMsgs state.AddServiceEntry(service) return nil }) }
go
{ "resource": "" }
q11774
HasServer
train
func (state *ServicesState) HasServer(hostname string) bool { _, ok := state.Servers[hostname] return ok }
go
{ "resource": "" }
q11775
ExpireServer
train
func (state *ServicesState) ExpireServer(hostname string) { if !state.HasServer(hostname) || len(state.Servers[hostname].Services) == 0 { log.Infof("No records to expire for %s", hostname) return } hasLiveServices := false for _, svc := range state.Servers[hostname].Services { if !svc.IsTombstone() { hasLiveServices = true break } } if !hasLiveServices { log.Infof("No records to expire for %s (no live services)", hostname) return } log.Infof("Expiring %s", hostname) var tombstones []service.Service for _, svc := range state.Servers[hostname].Services { previousStatus := svc.Status state.ServiceChanged(svc, previousStatus, svc.Updated) svc.Tombstone() tombstones = append(tombstones, *svc) } if len(tombstones) < 1 { log.Warn("Tried to announce a zero length list of tombstones") return } state.SendServices( tombstones, director.NewTimedLooper(TOMBSTONE_COUNT, state.tombstoneRetransmit, nil), ) }
go
{ "resource": "" }
q11776
ServiceChanged
train
func (state *ServicesState) ServiceChanged(svc *service.Service, previousStatus int, updated time.Time) { state.serverChanged(svc.Hostname, updated) state.NotifyListeners(svc, previousStatus, state.LastChanged) }
go
{ "resource": "" }
q11777
AddListener
train
func (state *ServicesState) AddListener(listener Listener) { if listener.Chan() == nil { log.Errorf("Refusing to add listener %s with nil channel!", listener.Name()) return } if cap(listener.Chan()) < 1 { log.Errorf("Refusing to add blocking channel as listener: %s", listener.Name()) return } state.Lock() defer state.Unlock() state.listeners[listener.Name()] = listener log.Debugf("AddListener(): added %s, new count %d", listener.Name(), len(state.listeners)) }
go
{ "resource": "" }
q11778
RemoveListener
train
func (state *ServicesState) RemoveListener(name string) error { state.Lock() defer state.Unlock() if _, ok := state.listeners[name]; ok { delete(state.listeners, name) log.Debugf("RemoveListener(): removed %s, new count %d", name, len(state.listeners)) return nil } return fmt.Errorf("No listener found with the name: %s", name) }
go
{ "resource": "" }
q11779
GetListeners
train
func (state *ServicesState) GetListeners() []Listener { state.RLock() var listeners []Listener for _, listener := range state.listeners { listeners = append(listeners, listener) } state.RUnlock() return listeners }
go
{ "resource": "" }
q11780
AddServiceEntry
train
func (state *ServicesState) AddServiceEntry(newSvc service.Service) { defer metrics.MeasureSince([]string{"services_state", "AddServiceEntry"}, time.Now()) state.Lock() defer state.Unlock() if !state.HasServer(newSvc.Hostname) { state.Servers[newSvc.Hostname] = NewServer(newSvc.Hostname) } server := state.Servers[newSvc.Hostname] // Only apply changes that are newer or services are missing if !server.HasService(newSvc.ID) { server.Services[newSvc.ID] = &newSvc state.ServiceChanged(&newSvc, service.UNKNOWN, newSvc.Updated) state.retransmit(newSvc) } else if newSvc.Invalidates(server.Services[newSvc.ID]) { // We have to set these even if the status did not change server.LastUpdated = newSvc.Updated // Store the previous newSvc so we can compare it oldEntry := server.Services[newSvc.ID] // Update the new one server.Services[newSvc.ID] = &newSvc // When the status changes, the SeviceChanged() method will // update all the accounting fields in the state and Server newSvc. if oldEntry.Status != newSvc.Status { state.ServiceChanged(&newSvc, oldEntry.Status, newSvc.Updated) } // We tell our gossip peers about the updated service // by sending them the record. We're saved from an endless // retransmit loop by the Invalidates() call above. state.retransmit(newSvc) } }
go
{ "resource": "" }
q11781
Merge
train
func (state *ServicesState) Merge(otherState *ServicesState) { for _, server := range otherState.Servers { for _, service := range server.Services { state.ServiceMsgs <- *service } } }
go
{ "resource": "" }
q11782
retransmit
train
func (state *ServicesState) retransmit(svc service.Service) { // We don't retransmit our own events! We're already // transmitting them. if svc.Hostname == state.Hostname { return } go func() { encoded, err := svc.Encode() if err != nil { log.Errorf("ERROR encoding message to forward: (%s)", err.Error()) return } state.Broadcasts <- [][]byte{encoded} }() }
go
{ "resource": "" }
q11783
Print
train
func (state *ServicesState) Print(list *memberlist.Memberlist) { log.Println(state.Format(list)) }
go
{ "resource": "" }
q11784
TrackNewServices
train
func (state *ServicesState) TrackNewServices(fn func() []service.Service, looper director.Looper) { looper.Loop(func() error { for _, container := range fn() { state.ServiceMsgs <- container } return nil }) }
go
{ "resource": "" }
q11785
TrackLocalListeners
train
func (state *ServicesState) TrackLocalListeners(fn func() []Listener, looper director.Looper) { looper.Loop(func() error { discovered := fn() // Add new listeners for _, listener := range discovered { state.RLock() _, ok := state.listeners[listener.Name()] state.RUnlock() if !ok { log.Infof("Adding listener %s because it was just discovered", listener.Name()) urlListener, ok := listener.(*UrlListener) if ok { urlListener.Watch(state) } else { state.AddListener(listener) } } } // Remove old ones listeners := state.listeners for _, listener := range listeners { if listener.Managed() && !containsListener(discovered, listener.Name()) { log.Infof("Removing listener %s because the service appears to be gone", listener.Name()) urlListener, ok := listener.(*UrlListener) if ok { log.Infof("Stopping UrlListener %s", listener.Name()) urlListener.Stop() } state.RemoveListener(listener.Name()) } } return nil }) }
go
{ "resource": "" }
q11786
IsNewService
train
func (state *ServicesState) IsNewService(svc *service.Service) bool { var found *service.Service if state.HasServer(svc.Hostname) { found = state.Servers[svc.Hostname].Services[svc.ID] } if found == nil || (!svc.IsTombstone() && svc.Status != found.Status) { return true } return false }
go
{ "resource": "" }
q11787
BroadcastServices
train
func (state *ServicesState) BroadcastServices(fn func() []service.Service, looper director.Looper) { lastTime := time.Unix(0, 0) looper.Loop(func() error { defer metrics.MeasureSince([]string{"services_state", "BroadcastServices"}, time.Now()) var services []service.Service haveNewServices := false servicesList := fn() state.RLock() defer state.RUnlock() for _, svc := range servicesList { isNew := state.IsNewService(&svc) // We'll broadcast it now if it's new or we've hit refresh window if isNew { log.Debug("Found service changes in BroadcastServices()") haveNewServices = true services = append(services, svc) // Check that refresh window... is it time? } else if time.Now().UTC().Add(0 - ALIVE_BROADCAST_INTERVAL).After(lastTime) { services = append(services, svc) } } if len(services) > 0 { log.Debug("Starting to broadcast") // Figure out how many times to announce the service. New services get more announcements. runCount := 1 if haveNewServices { runCount = ALIVE_COUNT } lastTime = time.Now().UTC() state.SendServices( services, director.NewTimedLooper(runCount, state.tombstoneRetransmit, nil), ) log.Debug("Completing broadcast") } else { // We expect there to always be _something_ in the channel // once we've run. state.Broadcasts <- nil } return nil }) }
go
{ "resource": "" }
q11788
SendServices
train
func (state *ServicesState) SendServices(services []service.Service, looper director.Looper) { // Announce these every second for awhile go func() { defer metrics.MeasureSince([]string{"services_state", "SendServices"}, time.Now()) additionalTime := 0 * time.Second looper.Loop(func() error { var prepared [][]byte for _, svc := range services { svc.Updated = svc.Updated.Add(additionalTime) encoded, err := svc.Encode() if err != nil { log.Errorf("ERROR encoding container: (%s)", err.Error()) } prepared = append(prepared, encoded) } // We add time to make sure that these get retransmitted by peers. // Otherwise they aren't "new" messages and don't get retransmitted. additionalTime = additionalTime + 50*time.Nanosecond state.Broadcasts <- prepared // Put it on the wire return nil }) }() }
go
{ "resource": "" }
q11789
ByService
train
func (state *ServicesState) ByService() map[string][]*service.Service { serviceMap := make(map[string][]*service.Service) state.EachServiceSorted( func(hostname *string, serviceId *string, svc *service.Service) { serviceMap[svc.Name] = append(serviceMap[svc.Name], svc) }, ) return serviceMap }
go
{ "resource": "" }
q11790
Decode
train
func Decode(data []byte) (*ServicesState, error) { newState := NewServicesState() err := newState.UnmarshalJSON(data) if err != nil { log.Errorf("Error decoding state! (%s)", err.Error()) } return newState, err }
go
{ "resource": "" }
q11791
New
train
func New(configFile string, pidFile string) *HAproxy { reloadCmd := "haproxy -f " + configFile + " -p " + pidFile + " `[[ -f " + pidFile + " ]] && echo \"-sf $(cat " + pidFile + ")\"]]`" verifyCmd := "haproxy -c -f " + configFile proxy := HAproxy{ ReloadCmd: reloadCmd, VerifyCmd: verifyCmd, Template: "views/haproxy.cfg", ConfigFile: configFile, PidFile: pidFile, } return &proxy }
go
{ "resource": "" }
q11792
sanitizeName
train
func sanitizeName(image string) string { replace := regexp.MustCompile("[^a-z0-9-]") return replace.ReplaceAllString(image, "-") }
go
{ "resource": "" }
q11793
findPortForService
train
func findPortForService(svcPort string, svc *service.Service) string { matchPort, err := strconv.ParseInt(svcPort, 10, 64) if err != nil { log.Errorf("Invalid value from template ('%s') can't parse as int64: %s", svcPort, err.Error()) return "-1" } for _, port := range svc.Ports { if port.ServicePort == matchPort { internalPort := strconv.FormatInt(port.Port, 10) return internalPort } } return "-1" }
go
{ "resource": "" }
q11794
findIpForService
train
func (h *HAproxy) findIpForService(svcPort string, svc *service.Service) string { // We can turn off using IP addresses in the config, which is sometimes // necessary (e.g. w/Docker for Mac). if h.UseHostnames { return svc.Hostname } matchPort, err := strconv.ParseInt(svcPort, 10, 64) if err != nil { log.Errorf("Invalid value from template ('%s') can't parse as int64: %s", svcPort, err.Error()) return "-1" } for _, port := range svc.Ports { if port.ServicePort == matchPort { return port.IP } } // This defaults to the previous behavior of templating the hostname // instead of the IP address. This relies on haproxy being able to // resolve the hostname (which means non-FQDN hostnames are a hazard). // Ideally this never happens for clusters that have IP addresses defined. return svc.Hostname }
go
{ "resource": "" }
q11795
swallowSignals
train
func (h *HAproxy) swallowSignals() { // from HAproxy which propagate. sigChan := make(chan os.Signal, 10) // Used to stop the goroutine h.sigStopChan = make(chan struct{}) go func() { for { select { case <-sigChan: // swallow signal case <-h.sigStopChan: break } } }() signal.Notify(sigChan, syscall.SIGSTOP, syscall.SIGTSTP, syscall.SIGTTIN, syscall.SIGTTOU) }
go
{ "resource": "" }
q11796
ResetSignals
train
func (h *HAproxy) ResetSignals() { h.sigLock.Lock() signal.Reset(syscall.SIGSTOP, syscall.SIGTSTP, syscall.SIGTTIN, syscall.SIGTTOU) select { case h.sigStopChan <- struct{}{}: // nothing default: } h.sigLock.Unlock() }
go
{ "resource": "" }
q11797
run
train
func (h *HAproxy) run(command string) error { cmd := exec.Command("/bin/bash", "-c", command) stdout := &bytes.Buffer{} stderr := &bytes.Buffer{} cmd.Stdout = stdout cmd.Stderr = stderr // The end effect of this signal handling requirement is that we can only run _one_ // command at a time. This is totally fine for HAproxy. h.sigLock.Lock() defer h.sigLock.Unlock() if !h.signalsHandled { log.Info("Setting up signal handlers") h.swallowSignals() h.signalsHandled = true } err := cmd.Run() if err != nil { err = fmt.Errorf("Error running '%s': %s\n%s\n%s", command, err, stdout, stderr) } return err }
go
{ "resource": "" }
q11798
WriteAndReload
train
func (h *HAproxy) WriteAndReload(state *catalog.ServicesState) error { if h.ConfigFile == "" { return fmt.Errorf("Trying to write HAproxy config, but no filename specified!") } outfile, err := os.Create(h.ConfigFile) if err != nil { return fmt.Errorf("Unable to write to %s! (%s)", h.ConfigFile, err.Error()) } if err := h.WriteConfig(state, outfile); err != nil { return err } if err = h.Verify(); err != nil { return fmt.Errorf("Failed to verify HAproxy config! (%s)", err.Error()) } return h.Reload() }
go
{ "resource": "" }
q11799
UpdateHandler
train
func UpdateHandler(response http.ResponseWriter, req *http.Request, rcvr *Receiver) { defer req.Body.Close() response.Header().Set("Content-Type", "application/json") data, err := ioutil.ReadAll(req.Body) if err != nil { message, _ := json.Marshal(ApiErrors{[]string{err.Error()}}) response.WriteHeader(http.StatusInternalServerError) response.Write(message) return } var evt catalog.StateChangedEvent err = json.Unmarshal(data, &evt) if err != nil { message, _ := json.Marshal(ApiErrors{[]string{err.Error()}}) response.WriteHeader(http.StatusInternalServerError) response.Write(message) return } rcvr.StateLock.Lock() defer rcvr.StateLock.Unlock() if rcvr.CurrentState == nil || rcvr.CurrentState.LastChanged.Before(evt.State.LastChanged) { rcvr.CurrentState = &evt.State rcvr.LastSvcChanged = &evt.ChangeEvent.Service if ShouldNotify(evt.ChangeEvent.PreviousStatus, evt.ChangeEvent.Service.Status) { if !rcvr.IsSubscribed(evt.ChangeEvent.Service.Name) { return } if rcvr.OnUpdate == nil { log.Errorf("No OnUpdate() callback registered!") return } rcvr.EnqueueUpdate() } } }
go
{ "resource": "" }