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Ignore variable names starting with numbers #284

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merged 1 commit into from Jul 22, 2022
Merged

Ignore variable names starting with numbers #284

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1 change: 1 addition & 0 deletions dotenv/fixtures/plain.env
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Expand Up @@ -3,6 +3,7 @@ OPTION_B=2
OPTION_C= 3
OPTION_D =4
OPTION_E = 5
456 = ABC
OPTION_F =
OPTION_G=
OPTION_H = my string # Inline comment
16 changes: 10 additions & 6 deletions dotenv/godotenv.go
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Expand Up @@ -93,26 +93,30 @@ func load(overload bool, filenames ...string) (err error) {
return
}

var startsWithDigitRegex = regexp.MustCompile(`^\s*\d.*`) // Keys starting with numbers are ignored

// ReadWithLookup gets all env vars from the files and/or lookup function and return values as
// a map rather than automatically writing values into env
func ReadWithLookup(lookupFn LookupFn, filenames ...string) (envMap map[string]string, err error) {
func ReadWithLookup(lookupFn LookupFn, filenames ...string) (map[string]string, error) {
filenames = filenamesOrDefault(filenames)
envMap = make(map[string]string)
envMap := make(map[string]string)

for _, filename := range filenames {
individualEnvMap, individualErr := readFile(filename, lookupFn)

if individualErr != nil {
err = individualErr
return // return early on a spazout
return envMap, individualErr
}

for key, value := range individualEnvMap {
if startsWithDigitRegex.MatchString(key) {
continue
}
envMap[key] = value
}
}

return
return envMap, nil
}

// Read all env (with same file loading semantics as Load) but return values as
Expand Down Expand Up @@ -183,7 +187,7 @@ func Marshal(envMap map[string]string) (string, error) {
if d, err := strconv.Atoi(v); err == nil {
lines = append(lines, fmt.Sprintf(`%s=%d`, k, d))
} else {
lines = append(lines, fmt.Sprintf(`%s="%s"`, k, doubleQuoteEscape(v))) //nolint // Cannot use %q here
lines = append(lines, fmt.Sprintf(`%s="%s"`, k, doubleQuoteEscape(v))) // nolint // Cannot use %q here
}
}
sort.Strings(lines)
Expand Down