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feat: world.toml config file and set namespace (#16)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package config | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
|
|
||
| "github.com/pelletier/go-toml" | ||
| "github.com/rs/zerolog/log" | ||
| ) | ||
|
|
||
| const ( | ||
| WorldCLIConfigFileEnvVariable = "WORLD_CLI_CONFIG_FILE" | ||
| WorldCLIConfigFilename = "world.toml" | ||
| ) | ||
|
|
||
| var ( | ||
| // Items under these toml headers will be included in the environment variables when | ||
| // running docker. An error will be generated if a duplicate key is found across | ||
| // these sections. | ||
| dockerEnvHeaders = []string{"cardinal", "evm"} | ||
| ) | ||
|
|
||
| type Config struct { | ||
| RootDir string | ||
| Detach bool | ||
| Build bool | ||
| Debug bool | ||
| Timeout int | ||
| DockerEnv map[string]string | ||
| } | ||
|
|
||
| func LoadConfig(filename string) (Config, error) { | ||
| if filename != "" { | ||
| return loadConfigFromFile(filename) | ||
| } | ||
| // Was the file set as an environment variable | ||
| if filename = os.Getenv(WorldCLIConfigFileEnvVariable); filename != "" { | ||
| return loadConfigFromFile(filename) | ||
| } | ||
| // Is there a config in this local directory? | ||
| currDir, err := os.Getwd() | ||
| if err != nil { | ||
| return Config{}, err | ||
| } | ||
|
|
||
| for { | ||
| filename = path.Join(currDir, WorldCLIConfigFilename) | ||
| if cfg, err := loadConfigFromFile(filename); err == nil { | ||
| return cfg, nil | ||
| } else if !os.IsNotExist(err) { | ||
| return cfg, err | ||
| } | ||
| before := currDir | ||
| currDir = path.Join(currDir, "..") | ||
| if currDir == before { | ||
| break | ||
| } | ||
| } | ||
|
|
||
| return Config{}, errors.New("no config file found") | ||
| } | ||
|
|
||
| func loadConfigFromFile(filename string) (Config, error) { | ||
| cfg := Config{ | ||
| DockerEnv: map[string]string{}, | ||
| } | ||
| file, err := os.Open(filename) | ||
| if err != nil { | ||
| return cfg, err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| data := map[string]any{} | ||
| if err = toml.NewDecoder(file).Decode(&data); err != nil { | ||
| return cfg, err | ||
| } | ||
| if rootDir, ok := data["root_dir"]; ok { | ||
| cfg.RootDir = rootDir.(string) | ||
| } else { | ||
| cfg.RootDir, _ = filepath.Split(filename) | ||
| } | ||
|
|
||
| for _, header := range dockerEnvHeaders { | ||
| m, ok := data[header] | ||
| if !ok { | ||
| continue | ||
| } | ||
| for key, val := range m.(map[string]any) { | ||
| if _, ok := cfg.DockerEnv[key]; ok { | ||
| return cfg, fmt.Errorf("duplicate env variable %q", key) | ||
| } | ||
| cfg.DockerEnv[key] = fmt.Sprintf("%v", val) | ||
| } | ||
| } | ||
|
|
||
| log.Debug().Msgf("successfully loaded config from %q", filename) | ||
|
|
||
| return cfg, nil | ||
| } |
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