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cmd/utils: check if legacy testnet datadir exists for ropsten

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/raw PONG _GHMoaCXLT 2020-04-02 10:35:41 +02:00
parent a3da2d47dc
commit 36be1022d1
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1 changed files with 31 additions and 6 deletions
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37
cmd/utils/flags.go
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@ -162,10 +162,10 @@ var (
}
NetworkIdFlag = cli.Uint64Flag{
Name: "networkid",
Usage: "Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby, 5=Görli)",
Usage: "Network identifier (integer, 1=Frontier, 3=Ropsten, 4=Rinkeby, 5=Görli)",
Value: eth.DefaultConfig.NetworkId,
}
LegacyTestnetFlag = cli.BoolFlag{ // Deprecated in favor of --goerli, --rinkeby, or --ropsten
LegacyTestnetFlag = cli.BoolFlag{ // TODO(q9f): Remove after Ropsten is discontinued.
Name: "testnet",
Usage: "Pre-configured test network (Deprecated: Please choose one of --goerli, --rinkeby, or --ropsten.)",
}
@ -763,7 +763,6 @@ var (
Usage: "Comma-separated InfluxDB tags (key/values) attached to all measurements",
Value: "host=localhost",
}
EWASMInterpreterFlag = cli.StringFlag{
Name: "vm.ewasm",
Usage: "External ewasm configuration (default = built-in interpreter)",
@ -778,11 +777,18 @@ var (
// MakeDataDir retrieves the currently requested data directory, terminating
// if none (or the empty string) is specified. If the node is starting a testnet,
// then a subdirectory of the specified data-dir will be used.
// then a subdirectory of the specified datadir will be used.
func MakeDataDir(ctx *cli.Context) string {
if path := ctx.GlobalString(DataDirFlag.Name); path != "" {
if ctx.GlobalBool(LegacyTestnetFlag.Name) || ctx.GlobalBool(RopstenFlag.Name) {
return filepath.Join(path, "testnet")
// Maintain compatibility with older Geth configurations storing the
// Ropsten database in `testnet` instead of `ropsten`.
legacyPath := filepath.Join(path, "testnet")
if DatadirExists(legacyPath) {
log.Warn("Using the deprecated `testnet` datadir. Future versions will store the Ropsten chain in `ropsten`.")
return legacyPath
}
return filepath.Join(path, "ropsten")
}
if ctx.GlobalBool(RinkebyFlag.Name) {
return filepath.Join(path, "rinkeby")
@ -1245,7 +1251,14 @@ func setDataDir(ctx *cli.Context, cfg *node.Config) {
case ctx.GlobalBool(DeveloperFlag.Name):
cfg.DataDir = "" // unless explicitly requested, use memory databases
case (ctx.GlobalBool(LegacyTestnetFlag.Name) || ctx.GlobalBool(RopstenFlag.Name)) && cfg.DataDir == node.DefaultDataDir():
cfg.DataDir = filepath.Join(node.DefaultDataDir(), "testnet")
// Maintain compatibility with older Geth configurations storing the
// Ropsten database in `testnet` instead of `ropsten`.
legacyPath := filepath.Join(node.DefaultDataDir(), "testnet")
if DatadirExists(legacyPath) {
cfg.DataDir = legacyPath
} else {
cfg.DataDir = filepath.Join(node.DefaultDataDir(), "ropsten")
}
case ctx.GlobalBool(RinkebyFlag.Name) && cfg.DataDir == node.DefaultDataDir():
cfg.DataDir = filepath.Join(node.DefaultDataDir(), "rinkeby")
case ctx.GlobalBool(GoerliFlag.Name) && cfg.DataDir == node.DefaultDataDir():
@ -1818,3 +1831,15 @@ func MigrateFlags(action func(ctx *cli.Context) error) func(*cli.Context) error
return action(ctx)
}
}
// DatadirExists checks wether the datadir in `path` exists or not.
//
// E.g., can be used to determine wether to use the old `testnet` directory for
// Ropsten or create a new `ropsten` datadir instead.
func DatadirExists(path string) bool {
if _, err := os.Stat(path); !os.IsNotExist(err) {
return true
} else {
return false
}
}