From ec9cc0bde48b6a32f6d390c01132a3fcbcb950ca Mon Sep 17 00:00:00 2001
From: Christian Muehlhaeuser <muesli@gmail.com>
Date: Tue, 31 Mar 2020 08:53:35 +0200
Subject: [PATCH] Make source private

---
 github.go |  4 ++--
 gitlab.go |  4 ++--
 main.go   | 20 +++++++++++++-------
 3 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/github.go b/github.go
index 1b04da7..3b944cc 100644
--- a/github.go
+++ b/github.go
@@ -22,7 +22,7 @@ func isGitHubURL(s string) (string, bool) {
 }
 
 // findGitHubREADME tries to find the correct README filename in a repository
-func findGitHubREADME(s string) (*Source, error) {
+func findGitHubREADME(s string) (*source, error) {
 	u, err := url.ParseRequestURI(s)
 	if err != nil {
 		return nil, err
@@ -39,7 +39,7 @@ func findGitHubREADME(s string) (*Source, error) {
 		}
 
 		if resp.StatusCode == http.StatusOK {
-			return &Source{resp.Body, v.String()}, nil
+			return &source{resp.Body, v.String()}, nil
 		}
 	}
 
diff --git a/gitlab.go b/gitlab.go
index 7c6dfa5..7bebc93 100644
--- a/gitlab.go
+++ b/gitlab.go
@@ -22,7 +22,7 @@ func isGitLabURL(s string) (string, bool) {
 }
 
 // findGitLabREADME tries to find the correct README filename in a repository
-func findGitLabREADME(s string) (*Source, error) {
+func findGitLabREADME(s string) (*source, error) {
 	u, err := url.ParseRequestURI(s)
 	if err != nil {
 		return nil, err
@@ -38,7 +38,7 @@ func findGitLabREADME(s string) (*Source, error) {
 		}
 
 		if resp.StatusCode == http.StatusOK {
-			return &Source{resp.Body, v.String()}, nil
+			return &source{resp.Body, v.String()}, nil
 		}
 	}
 
diff --git a/main.go b/main.go
index 0d5a9ab..80a1b39 100644
--- a/main.go
+++ b/main.go
@@ -36,14 +36,16 @@ var (
 	}
 )
 
-type Source struct {
+// source provides a readable markdown source
+type source struct {
 	reader io.ReadCloser
 	URL    string
 }
 
-func readerFromArg(s string) (*Source, error) {
+func readerFromArg(s string) (*source, error) {
+	// from stdin
 	if s == "-" {
-		return &Source{reader: os.Stdin}, nil
+		return &source{reader: os.Stdin}, nil
 	}
 
 	// a GitHub or GitLab URL (even without the protocol):
@@ -76,7 +78,7 @@ func readerFromArg(s string) (*Source, error) {
 			if resp.StatusCode != http.StatusOK {
 				return nil, fmt.Errorf("HTTP status %d", resp.StatusCode)
 			}
-			return &Source{resp.Body, u.String()}, nil
+			return &source{resp.Body, u.String()}, nil
 		}
 	}
 
@@ -87,7 +89,7 @@ func readerFromArg(s string) (*Source, error) {
 	}
 	st, err := os.Stat(s)
 	if err == nil && st.IsDir() {
-		var src *Source
+		var src *source
 		_ = filepath.Walk(s, func(path string, info os.FileInfo, err error) error {
 			for _, v := range readmeNames {
 				if strings.EqualFold(filepath.Base(path), v) {
@@ -97,12 +99,15 @@ func readerFromArg(s string) (*Source, error) {
 					}
 
 					u, _ := filepath.Abs(path)
-					src = &Source{r, u}
+					src = &source{r, u}
+
+					// abort filepath.Walk
 					return errors.New("source found")
 				}
 			}
 			return nil
 		})
+
 		if src != nil {
 			return src, nil
 		}
@@ -113,7 +118,7 @@ func readerFromArg(s string) (*Source, error) {
 	// a file:
 	r, err := os.Open(s)
 	u, _ := filepath.Abs(s)
-	return &Source{r, u}, err
+	return &source{r, u}, err
 }
 
 func execute(cmd *cobra.Command, args []string) error {
@@ -156,6 +161,7 @@ func executeArg(cmd *cobra.Command, arg string, w io.Writer) error {
 		baseURL = u.String() + "/"
 	}
 
+	// initialize glamour
 	var gs glamour.TermRendererOption
 	if style == "auto" {
 		gs = glamour.WithAutoStyle()