chore: Bump up to Go 1.19, minimum 1.18 (#4925)

2 files changed, 17 insertions, 17 deletions

diff --git a/modules/caddyhttp/templates/frontmatter.go b/modules/caddyhttp/templates/frontmatter.go
index 9031e13..3f7bd0c 100644
--- a/modules/caddyhttp/templates/frontmatter.go
+++ b/modules/caddyhttp/templates/frontmatter.go
@@ -10,7 +10,7 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
-func extractFrontMatter(input string) (map[string]interface{}, string, error) {
+func extractFrontMatter(input string) (map[string]any, string, error) {
 	// get the bounds of the first non-empty line
 	var firstLineStart, firstLineEnd int
 	lineEmpty := true
@@ -35,7 +35,7 @@ func extractFrontMatter(input string) (map[string]interface{}, string, error) {
 
 	// see what kind of front matter there is, if any
 	var closingFence []string
-	var fmParser func([]byte) (map[string]interface{}, error)
+	var fmParser func([]byte) (map[string]any, error)
 	for _, fmType := range supportedFrontMatterTypes {
 		if firstLine == fmType.FenceOpen {
 			closingFence = fmType.FenceClose
@@ -77,35 +77,35 @@ func extractFrontMatter(input string) (map[string]interface{}, string, error) {
 	return fm, body, nil
 }
 
-func yamlFrontMatter(input []byte) (map[string]interface{}, error) {
-	m := make(map[string]interface{})
+func yamlFrontMatter(input []byte) (map[string]any, error) {
+	m := make(map[string]any)
 	err := yaml.Unmarshal(input, &m)
 	return m, err
 }
 
-func tomlFrontMatter(input []byte) (map[string]interface{}, error) {
-	m := make(map[string]interface{})
+func tomlFrontMatter(input []byte) (map[string]any, error) {
+	m := make(map[string]any)
 	err := toml.Unmarshal(input, &m)
 	return m, err
 }
 
-func jsonFrontMatter(input []byte) (map[string]interface{}, error) {
+func jsonFrontMatter(input []byte) (map[string]any, error) {
 	input = append([]byte{'{'}, input...)
 	input = append(input, '}')
-	m := make(map[string]interface{})
+	m := make(map[string]any)
 	err := json.Unmarshal(input, &m)
 	return m, err
 }
 
 type parsedMarkdownDoc struct {
-	Meta map[string]interface{} `json:"meta,omitempty"`
-	Body string                 `json:"body,omitempty"`
+	Meta map[string]any `json:"meta,omitempty"`
+	Body string         `json:"body,omitempty"`
 }
 
 type frontMatterType struct {
 	FenceOpen  string
 	FenceClose []string
-	ParseFunc  func(input []byte) (map[string]interface{}, error)
+	ParseFunc  func(input []byte) (map[string]any, error)
 }
 
 var supportedFrontMatterTypes = []frontMatterType{
diff --git a/modules/caddyhttp/templates/tplcontext.go b/modules/caddyhttp/templates/tplcontext.go
index bae24ba..96a341c 100644
--- a/modules/caddyhttp/templates/tplcontext.go
+++ b/modules/caddyhttp/templates/tplcontext.go
@@ -44,7 +44,7 @@ import (
 type TemplateContext struct {
 	Root        http.FileSystem
 	Req         *http.Request
-	Args        []interface{} // defined by arguments to funcInclude
+	Args        []any // defined by arguments to funcInclude
 	RespHeader  WrappedHeader
 	CustomFuncs []template.FuncMap // functions added by plugins
 
@@ -99,7 +99,7 @@ func (c TemplateContext) OriginalReq() http.Request {
 // Note that included files are NOT escaped, so you should only include
 // trusted files. If it is not trusted, be sure to use escaping functions
 // in your template.
-func (c TemplateContext) funcInclude(filename string, args ...interface{}) (string, error) {
+func (c TemplateContext) funcInclude(filename string, args ...any) (string, error) {
 
 	bodyBuf := bufPool.Get().(*bytes.Buffer)
 	bodyBuf.Reset()
@@ -304,7 +304,7 @@ func (TemplateContext) funcStripHTML(s string) string {
 
 // funcMarkdown renders the markdown body as HTML. The resulting
 // HTML is NOT escaped so that it can be rendered as HTML.
-func (TemplateContext) funcMarkdown(input interface{}) (string, error) {
+func (TemplateContext) funcMarkdown(input any) (string, error) {
 	inputStr := toString(input)
 
 	md := goldmark.New(
@@ -340,7 +340,7 @@ func (TemplateContext) funcMarkdown(input interface{}) (string, error) {
 // splitFrontMatter parses front matter out from the beginning of input,
 // and returns the separated key-value pairs and the body/content. input
 // must be a "stringy" value.
-func (TemplateContext) funcSplitFrontMatter(input interface{}) (parsedMarkdownDoc, error) {
+func (TemplateContext) funcSplitFrontMatter(input any) (parsedMarkdownDoc, error) {
 	meta, body, err := extractFrontMatter(toString(input))
 	if err != nil {
 		return parsedMarkdownDoc{}, err
@@ -465,7 +465,7 @@ func (h WrappedHeader) Del(field string) string {
 	return ""
 }
 
-func toString(input interface{}) string {
+func toString(input any) string {
 	switch v := input.(type) {
 	case string:
 		return v
@@ -479,7 +479,7 @@ func toString(input interface{}) string {
 }
 
 var bufPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		return new(bytes.Buffer)
 	},
 }