William Petit
e66938f1d3
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Cadoles/bouncer/pipeline/head This commit looks good
126 lines
2.6 KiB
Go
126 lines
2.6 KiB
Go
package config
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import (
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"os"
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"regexp"
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"strconv"
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"github.com/pkg/errors"
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"gopkg.in/yaml.v3"
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)
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var reVar = regexp.MustCompile(`^\${(\w+)}$`)
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type InterpolatedString string
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func (is *InterpolatedString) UnmarshalYAML(value *yaml.Node) error {
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var str string
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if err := value.Decode(&str); err != nil {
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return errors.WithStack(err)
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}
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if match := reVar.FindStringSubmatch(str); len(match) > 0 {
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*is = InterpolatedString(os.Getenv(match[1]))
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} else {
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*is = InterpolatedString(str)
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}
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return nil
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}
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type InterpolatedInt int
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func (ii *InterpolatedInt) UnmarshalYAML(value *yaml.Node) error {
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var str string
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if err := value.Decode(&str); err != nil {
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return errors.Wrapf(err, "could not decode value '%v' (line '%d') into string", value.Value, value.Line)
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}
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if match := reVar.FindStringSubmatch(str); len(match) > 0 {
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str = os.Getenv(match[1])
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}
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intVal, err := strconv.ParseInt(str, 10, 32)
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if err != nil {
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return errors.Wrapf(err, "could not parse int '%v', line '%d'", str, value.Line)
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}
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*ii = InterpolatedInt(int(intVal))
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return nil
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}
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type InterpolatedBool bool
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func (ib *InterpolatedBool) UnmarshalYAML(value *yaml.Node) error {
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var str string
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if err := value.Decode(&str); err != nil {
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return errors.Wrapf(err, "could not decode value '%v' (line '%d') into string", value.Value, value.Line)
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}
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if match := reVar.FindStringSubmatch(str); len(match) > 0 {
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str = os.Getenv(match[1])
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}
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boolVal, err := strconv.ParseBool(str)
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if err != nil {
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return errors.Wrapf(err, "could not parse bool '%v', line '%d'", str, value.Line)
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}
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*ib = InterpolatedBool(boolVal)
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return nil
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}
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type InterpolatedMap map[string]interface{}
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func (im *InterpolatedMap) UnmarshalYAML(value *yaml.Node) error {
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var data map[string]interface{}
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if err := value.Decode(&data); err != nil {
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return errors.Wrapf(err, "could not decode value '%v' (line '%d') into map", value.Value, value.Line)
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}
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for key, value := range data {
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strVal, ok := value.(string)
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if !ok {
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continue
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}
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if match := reVar.FindStringSubmatch(strVal); len(match) > 0 {
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strVal = os.Getenv(match[1])
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}
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data[key] = strVal
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}
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*im = data
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return nil
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}
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type InterpolatedStringSlice []string
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func (iss *InterpolatedStringSlice) UnmarshalYAML(value *yaml.Node) error {
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var data []string
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if err := value.Decode(&data); err != nil {
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return errors.Wrapf(err, "could not decode value '%v' (line '%d') into map", value.Value, value.Line)
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}
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for index, value := range data {
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if match := reVar.FindStringSubmatch(value); len(match) > 0 {
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value = os.Getenv(match[1])
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}
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data[index] = value
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}
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*iss = data
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return nil
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}
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