--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/github.com/subosito/gotenv/gotenv.go Sun Feb 16 18:54:01 2020 +0100
@@ -0,0 +1,265 @@
+// Package gotenv provides functionality to dynamically load the environment variables
+package gotenv
+
+import (
+ "bufio"
+ "fmt"
+ "io"
+ "os"
+ "regexp"
+ "strings"
+)
+
+const (
+ // Pattern for detecting valid line format
+ linePattern = `\A\s*(?:export\s+)?([\w\.]+)(?:\s*=\s*|:\s+?)('(?:\'|[^'])*'|"(?:\"|[^"])*"|[^#\n]+)?\s*(?:\s*\#.*)?\z`
+
+ // Pattern for detecting valid variable within a value
+ variablePattern = `(\\)?(\$)(\{?([A-Z0-9_]+)?\}?)`
+)
+
+// Env holds key/value pair of valid environment variable
+type Env map[string]string
+
+/*
+Load is a function to load a file or multiple files and then export the valid variables into environment variables if they do not exist.
+When it's called with no argument, it will load `.env` file on the current path and set the environment variables.
+Otherwise, it will loop over the filenames parameter and set the proper environment variables.
+*/
+func Load(filenames ...string) error {
+ return loadenv(false, filenames...)
+}
+
+/*
+OverLoad is a function to load a file or multiple files and then export and override the valid variables into environment variables.
+*/
+func OverLoad(filenames ...string) error {
+ return loadenv(true, filenames...)
+}
+
+/*
+Must is wrapper function that will panic when supplied function returns an error.
+*/
+func Must(fn func(filenames ...string) error, filenames ...string) {
+ if err := fn(filenames...); err != nil {
+ panic(err.Error())
+ }
+}
+
+/*
+Apply is a function to load an io Reader then export the valid variables into environment variables if they do not exist.
+*/
+func Apply(r io.Reader) error {
+ return parset(r, false)
+}
+
+/*
+OverApply is a function to load an io Reader then export and override the valid variables into environment variables.
+*/
+func OverApply(r io.Reader) error {
+ return parset(r, true)
+}
+
+func loadenv(override bool, filenames ...string) error {
+ if len(filenames) == 0 {
+ filenames = []string{".env"}
+ }
+
+ for _, filename := range filenames {
+ f, err := os.Open(filename)
+ if err != nil {
+ return err
+ }
+
+ err = parset(f, override)
+ if err != nil {
+ return err
+ }
+
+ f.Close()
+ }
+
+ return nil
+}
+
+// parse and set :)
+func parset(r io.Reader, override bool) error {
+ env, err := StrictParse(r)
+ if err != nil {
+ return err
+ }
+
+ for key, val := range env {
+ setenv(key, val, override)
+ }
+
+ return nil
+}
+
+func setenv(key, val string, override bool) {
+ if override {
+ os.Setenv(key, val)
+ } else {
+ if _, present := os.LookupEnv(key); !present {
+ os.Setenv(key, val)
+ }
+ }
+}
+
+// Parse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is skipping any invalid lines and only processing the valid one.
+func Parse(r io.Reader) Env {
+ env, _ := StrictParse(r)
+ return env
+}
+
+// StrictParse is a function to parse line by line any io.Reader supplied and returns the valid Env key/value pair of valid variables.
+// It expands the value of a variable from the environment variable but does not set the value to the environment itself.
+// This function is returning an error if there are any invalid lines.
+func StrictParse(r io.Reader) (Env, error) {
+ env := make(Env)
+ scanner := bufio.NewScanner(r)
+
+ i := 1
+ bom := string([]byte{239, 187, 191})
+
+ for scanner.Scan() {
+ line := scanner.Text()
+
+ if i == 1 {
+ line = strings.TrimPrefix(line, bom)
+ }
+
+ i++
+
+ err := parseLine(line, env)
+ if err != nil {
+ return env, err
+ }
+ }
+
+ return env, nil
+}
+
+func parseLine(s string, env Env) error {
+ rl := regexp.MustCompile(linePattern)
+ rm := rl.FindStringSubmatch(s)
+
+ if len(rm) == 0 {
+ return checkFormat(s, env)
+ }
+
+ key := rm[1]
+ val := rm[2]
+
+ // determine if string has quote prefix
+ hdq := strings.HasPrefix(val, `"`)
+
+ // determine if string has single quote prefix
+ hsq := strings.HasPrefix(val, `'`)
+
+ // trim whitespace
+ val = strings.Trim(val, " ")
+
+ // remove quotes '' or ""
+ rq := regexp.MustCompile(`\A(['"])(.*)(['"])\z`)
+ val = rq.ReplaceAllString(val, "$2")
+
+ if hdq {
+ val = strings.Replace(val, `\n`, "\n", -1)
+ val = strings.Replace(val, `\r`, "\r", -1)
+
+ // Unescape all characters except $ so variables can be escaped properly
+ re := regexp.MustCompile(`\\([^$])`)
+ val = re.ReplaceAllString(val, "$1")
+ }
+
+ rv := regexp.MustCompile(variablePattern)
+ fv := func(s string) string {
+ return varReplacement(s, hsq, env)
+ }
+
+ val = rv.ReplaceAllStringFunc(val, fv)
+ val = parseVal(val, env)
+
+ env[key] = val
+ return nil
+}
+
+func parseExport(st string, env Env) error {
+ if strings.HasPrefix(st, "export") {
+ vs := strings.SplitN(st, " ", 2)
+
+ if len(vs) > 1 {
+ if _, ok := env[vs[1]]; !ok {
+ return fmt.Errorf("line `%s` has an unset variable", st)
+ }
+ }
+ }
+
+ return nil
+}
+
+func varReplacement(s string, hsq bool, env Env) string {
+ if strings.HasPrefix(s, "\\") {
+ return strings.TrimPrefix(s, "\\")
+ }
+
+ if hsq {
+ return s
+ }
+
+ sn := `(\$)(\{?([A-Z0-9_]+)\}?)`
+ rn := regexp.MustCompile(sn)
+ mn := rn.FindStringSubmatch(s)
+
+ if len(mn) == 0 {
+ return s
+ }
+
+ v := mn[3]
+
+ replace, ok := env[v]
+ if !ok {
+ replace = os.Getenv(v)
+ }
+
+ return replace
+}
+
+func checkFormat(s string, env Env) error {
+ st := strings.TrimSpace(s)
+
+ if (st == "") || strings.HasPrefix(st, "#") {
+ return nil
+ }
+
+ if err := parseExport(st, env); err != nil {
+ return err
+ }
+
+ return fmt.Errorf("line `%s` doesn't match format", s)
+}
+
+func parseVal(val string, env Env) string {
+ if strings.Contains(val, "=") {
+ if !(val == "\n" || val == "\r") {
+ kv := strings.Split(val, "\n")
+
+ if len(kv) == 1 {
+ kv = strings.Split(val, "\r")
+ }
+
+ if len(kv) > 1 {
+ val = kv[0]
+
+ for i := 1; i < len(kv); i++ {
+ parseLine(kv[i], env)
+ }
+ }
+ }
+ }
+
+ return val
+}