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Published: Jun 24, 2021 License: Apache-2.0 Imports: 10 Imported by: 0



Package config handles config files, -config, and env vars at startup.



View Source
const (
	DEFAULT_ADDR          = ""
	DEFAULT_CONFIG_FILES  = "/etc/etre/es.yaml,~/.es.yaml"
	DEFAULT_IFS           = ","
	DEFAULT_TIMEOUT       = "10s"
	DEFAULT_RETRY         = 0


View Source
var (
	ErrUnknownRequest = errors.New("request does not exist")


func DefaultTrace

func DefaultTrace() string

func Help

func Help()

func ParseArgs

func ParseArgs(args []string) (string, []string, string)


type CommandLine

type CommandLine struct {
	Args []string `arg:"positional"`

CommandLine represents options (--addr, etc.) and args: entity type, return labels, and query predicates. The caller is expected to copy and use the embedded structs separately, like:

var o config.Options = cmdLine.Options
for i, arg := range cmdline.Args {

func ParseCommandLine

func ParseCommandLine(def Options) CommandLine

ParseCommandLine parses the command line and env vars. Command line options override env vars. Default options are used unless overridden by env vars or command line options. Defaults are usually parsed from config files.

type Options

type Options struct {
	Addr         string `arg:"env:ES_ADDR" yaml:"addr"`
	Config       string `arg:"env:ES_CONFIG"`
	Debug        bool   `arg:"env:ES_DEBUG" yaml:"debug"`
	Delete       bool
	DeleteLabel  bool   `arg:"--delete-label"`
	Env          string `arg:"env:ES_ENV" yaml:"env"`
	Help         bool
	JSON         bool   `arg:"env:ES_JSON" yaml:"json"`
	IFS          string `arg:"env" yaml:"ifs"`
	Labels       bool   `arg:"env:ES_LABELS" yaml:"labels"`
	Old          bool   `arg:"env:ES_OLD" yaml:"old"`
	QueryTimeout string `arg:"--query-timeout,env:ES_QUERY_TIMEOUT" yaml:"query_timeout"`
	Retry        uint   `arg:"env:ES_RETRY" yaml:"retry"`
	RetryWait    string `arg:"--retry-wait,env:ES_RETRY_WAIT" yaml:"retry_wait"`
	SetOp        string `arg:"--set-op,env:ES_SET_OP"`
	SetId        string `arg:"--set-id,env:ES_SET_ID"`
	SetSize      int    `arg:"--set-size,env:ES_SET_SIZE"`
	Strict       bool   `arg:"env:ES_STRICT" yaml:"strict"`
	Timeout      string `arg:"env:ES_TIMEOUT" yaml:"timeout"`
	Trace        string `arg:"env:ES_TRACE" yaml:"trace"`
	Update       bool
	Unique       bool `arg:"-u"`
	Version      bool `arg:"-v"`
	Watch        bool

Options represents typical command line options: --addr, --config, etc.

func ParseConfigFiles

func ParseConfigFiles(files string) Options

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