127 lines
2.6 KiB
Go
127 lines
2.6 KiB
Go
package serv
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import (
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"fmt"
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/spf13/viper"
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)
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// ReadInConfig function reads in the config file for the environment specified in the GO_ENV
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// environment variable. This is the best way to create a new Super Graph config.
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func ReadInConfig(configFile string) (*Config, error) {
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cpath := path.Dir(configFile)
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cfile := path.Base(configFile)
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vi := newViper(cpath, cfile)
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if err := vi.ReadInConfig(); err != nil {
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return nil, err
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}
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inherits := vi.GetString("inherits")
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if inherits != "" {
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vi = newViper(cpath, inherits)
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if err := vi.ReadInConfig(); err != nil {
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return nil, err
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}
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if vi.IsSet("inherits") {
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return nil, fmt.Errorf("inherited config (%s) cannot itself inherit (%s)",
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inherits,
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vi.GetString("inherits"))
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}
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vi.SetConfigName(cfile)
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if err := vi.MergeInConfig(); err != nil {
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return nil, err
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}
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}
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c := &Config{cpath: cpath, vi: vi}
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if err := vi.Unmarshal(&c); err != nil {
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return nil, fmt.Errorf("failed to decode config, %v", err)
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}
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return c, nil
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}
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func newViper(configPath, configFile string) *viper.Viper {
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vi := viper.New()
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vi.SetEnvPrefix("SG")
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vi.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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vi.AutomaticEnv()
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vi.AddConfigPath(configPath)
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vi.SetConfigName(configFile)
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vi.AddConfigPath("./config")
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vi.SetDefault("host_port", "0.0.0.0:8080")
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vi.SetDefault("web_ui", false)
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vi.SetDefault("enable_tracing", false)
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vi.SetDefault("auth_fail_block", false)
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vi.SetDefault("seed_file", "seed.js")
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vi.SetDefault("default_block", true)
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vi.SetDefault("database.type", "postgres")
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vi.SetDefault("database.host", "localhost")
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vi.SetDefault("database.port", 5432)
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vi.SetDefault("database.user", "postgres")
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vi.SetDefault("database.schema", "public")
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vi.SetDefault("env", "development")
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vi.BindEnv("env", "GO_ENV") //nolint: errcheck
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vi.BindEnv("host", "HOST") //nolint: errcheck
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vi.BindEnv("port", "PORT") //nolint: errcheck
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vi.SetDefault("auth.rails.max_idle", 80)
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vi.SetDefault("auth.rails.max_active", 12000)
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return vi
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}
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func GetConfigName() string {
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if os.Getenv("GO_ENV") == "" {
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return "dev"
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}
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ge := strings.ToLower(os.Getenv("GO_ENV"))
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switch {
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case strings.HasPrefix(ge, "pro"):
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return "prod"
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case strings.HasPrefix(ge, "sta"):
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return "stage"
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case strings.HasPrefix(ge, "tes"):
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return "test"
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case strings.HasPrefix(ge, "dev"):
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return "dev"
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}
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return ge
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}
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func (c *Config) telemetryEnabled() bool {
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return c.Telemetry.Debug || c.Telemetry.Metrics.Exporter != "" || c.Telemetry.Tracing.Exporter != ""
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}
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func (c *Config) relPath(p string) string {
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if filepath.IsAbs(p) {
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return p
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}
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return path.Join(c.cpath, p)
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}
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