forked from cerc-io/plugeth
63157c798d
- ReadConfig initialiser sets up global ethutil.Config via config file passed from wrappers - does not write out adhoc default (not meant to) but creates empty config file if it does not exist so that globalconf does not complain if persists a flag - default datadir and default config file set together with other flag defaults in wrappers - default assetpath set together with other command line flags defaults in gui wrapper (not in ethutil.Config or ui/ui_lib) - add EnvPrefix, to handle environment variable options too via globalconf - this is still transitional: global Config should just be a wrapper around globalconfig config handler and should be moved to go-ethereum - actual eth stack config should not be global instead config handled properly with explicit dependency injectioninto eth stack component instances
78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
package ethutil
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import (
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"flag"
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"fmt"
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"github.com/rakyll/globalconf"
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"runtime"
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"os"
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)
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// Config struct
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type config struct {
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Db Database
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ExecPath string
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Debug bool
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Ver string
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ClientString string
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Pubkey []byte
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Identifier string
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conf *globalconf.GlobalConf
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}
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var Config *config
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// Read config
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//
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// Initialize Config from Config File
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func ReadConfig(ConfigFile string, Datadir string, Identifier string, EnvPrefix string) *config {
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if Config == nil {
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// create ConfigFile if does not exist, otherwise globalconf panic when trying to persist flags
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_, err := os.Stat(ConfigFile)
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if err != nil && os.IsNotExist(err) {
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fmt.Printf("config file '%s' doesn't exist, creating it\n", ConfigFile)
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os.Create(ConfigFile)
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}
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g, err := globalconf.NewWithOptions(&globalconf.Options{
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Filename: ConfigFile,
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EnvPrefix: EnvPrefix,
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})
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if err != nil {
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fmt.Println(err)
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} else {
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g.ParseAll()
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}
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Config = &config{ExecPath: Datadir, Debug: true, Ver: "0.5.14", conf: g, Identifier: Identifier}
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Config.SetClientString("Ethereum(G)")
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}
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return Config
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}
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// Set client string
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//
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func (c *config) SetClientString(str string) {
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os := runtime.GOOS
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cust := c.Identifier
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Config.ClientString = fmt.Sprintf("%s/v%s/%s/%s/Go", str, c.Ver, cust, os)
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}
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func (c *config) SetIdentifier(id string) {
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c.Identifier = id
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c.Set("id", id)
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}
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// provides persistence for flags
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func (c *config) Set(key, value string) {
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f := &flag.Flag{Name: key, Value: &confValue{value}}
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c.conf.Set("", f)
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}
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type confValue struct {
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value string
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}
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func (self confValue) String() string { return self.value }
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func (self confValue) Set(s string) error { self.value = s; return nil }
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