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feat: initial configuration via environment (#136)
Signed-off-by: Chris Gianelloni <wolf31o2@blinklabs.io>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| // Copyright 2024 Blink Labs Software | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package config | ||
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| import ( | ||
| "fmt" | ||
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| "github.com/blinklabs-io/node/topology" | ||
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| "github.com/kelseyhightower/envconfig" | ||
| ) | ||
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| type Config struct { | ||
| BindAddr string `split_words:"true"` | ||
| Network string | ||
| Port uint | ||
| Topology string | ||
| } | ||
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| var globalConfig = &Config{ | ||
| BindAddr: "0.0.0.0", | ||
| Network: "preview", | ||
| Port: 3001, | ||
| Topology: "", | ||
| } | ||
|
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| func LoadConfig() (*Config, error) { | ||
| err := envconfig.Process("cardano", globalConfig) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error processing environment: %+v", err) | ||
| } | ||
| _, err = LoadTopologyConfig() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error loading topology: %+v", err) | ||
| } | ||
| return globalConfig, nil | ||
| } | ||
|
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| func GetConfig() *Config { | ||
| return globalConfig | ||
| } | ||
|
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| var globalTopologyConfig = &topology.TopologyConfig{ | ||
| PublicRoots: []topology.TopologyConfigP2PPublicRoot{ | ||
| { | ||
| AccessPoints: []topology.TopologyConfigP2PAccessPoint{ | ||
| { | ||
| Address: "preview-node.play.dev.cardano.org", | ||
| Port: 3001, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
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| func LoadTopologyConfig() (*topology.TopologyConfig, error) { | ||
| if globalConfig.Topology == "" { | ||
| return globalTopologyConfig, nil | ||
| } | ||
| tc, err := topology.NewTopologyConfigFromFile(globalConfig.Topology) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to load topology file: %+v", err) | ||
| } | ||
| // update globalTopologyConfig | ||
| globalTopologyConfig = tc | ||
| return globalTopologyConfig, nil | ||
| } | ||
|
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| func GetTopologyConfig() *topology.TopologyConfig{ | ||
| return globalTopologyConfig | ||
| } |
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