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env.go
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/
env.go
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package sidecar
import (
"io/fs"
"path/filepath"
"strings"
"github.com/g41797/godotenv"
)
// Loads all *.env file from configuration folder of the process.
// Overwrites non-existing environment variables.
// Supports "prefixed" environment variables
// (https://github.com/g41797/gonfig#using-prefixes-for-environment-variables-name)
func LoadEnv() error {
cf, err := ConfFolder()
if err != nil {
return err
}
envf, err := WalkDir(cf, []string{"env"})
if err != nil {
return err
}
if len(envf) == 0 {
return nil
}
for _, ef := range envf {
if err := godotenv.Load(ef); err != nil {
return err
}
}
return nil
}
// Finds all the files matching a particular suffix in all the directories
// https://stackoverflow.com/questions/70537979/how-to-efficiently-find-all-the-files-matching-a-particular-suffix-in-all-the-di
func WalkDir(root string, exts []string) ([]string, error) {
var files []string
err := filepath.WalkDir(root, func(path string, d fs.DirEntry, err error) error {
if d.IsDir() {
return nil
}
for _, s := range exts {
if strings.HasSuffix(path, "."+s) {
files = append(files, path)
return nil
}
}
return nil
})
return files, err
}