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94a3be3e6e
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/1749 Co-authored-by: Aravind K P <8335904+scriptonist@users.noreply.github.com> GitOrigin-RevId: 4515f7f2c58b7f28645b2c5a5d9842aa7a844eae
28 lines
700 B
Go
28 lines
700 B
Go
package util
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import (
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"fmt"
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"os"
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"strings"
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"github.com/spf13/pflag"
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"github.com/spf13/viper"
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)
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// ViperEnvPrefix - Env prefix to be used in viper
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const ViperEnvPrefix = "HASURA_GRAPHQL"
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// ViperEnvReplacer - Env replacer to be used in viper
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var ViperEnvReplacer = strings.NewReplacer(".", "_")
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// BindPFlag - binds flag with viper along with env usage
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func BindPFlag(v *viper.Viper, key string, f *pflag.Flag) {
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err := v.BindPFlag(key, f)
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if err != nil {
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fmt.Fprintf(os.Stderr, "viper failed binding pflag: %v with error: %v \n", key, err)
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}
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key = ViperEnvReplacer.Replace(key)
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key = strings.ToUpper(ViperEnvPrefix + "_" + key)
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f.Usage = f.Usage + fmt.Sprintf(` (env "%s")`, key)
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}
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