70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
package dotenv
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import (
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"bytes"
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"io"
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"os"
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)
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//
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// copied from https://github.com/joho/godotenv/blob/main/godotenv.go
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//
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// Read all env (with same file loading semantics as Load) but return values as
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// a map rather than automatically writing values into env
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func Read(filenames ...string) (envMap map[string]string, err error) {
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filenames = filenamesOrDefault(filenames)
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envMap = make(map[string]string)
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for _, filename := range filenames {
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individualEnvMap, individualErr := readFile(filename)
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if individualErr != nil {
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err = individualErr
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return // return early on a spazout
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}
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for key, value := range individualEnvMap {
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envMap[key] = value
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}
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}
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return
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}
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func filenamesOrDefault(filenames []string) []string {
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if len(filenames) == 0 {
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return []string{".env"}
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}
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return filenames
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}
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func readFile(filename string) (envMap map[string]string, err error) {
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file, err := os.Open(filename)
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if err != nil {
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return
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}
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defer file.Close()
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return parse(file)
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}
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// parse reads an env file from io.Reader, returning a map of keys and values.
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func parse(r io.Reader) (map[string]string, error) {
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var buf bytes.Buffer
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_, err := io.Copy(&buf, r)
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if err != nil {
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return nil, err
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}
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return unmarshal(buf.Bytes())
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}
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// unmarshal parses env file from byte slice of chars, returning a map of keys and values.
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func unmarshal(src []byte) (map[string]string, error) {
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out := make(map[string]string)
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err := parseBytes(src, out)
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return out, err
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}
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