use obsidian symlink to posts

1 files changed, 37 insertions, 3 deletions

diff --git a/markdown/markdown.go b/markdown/markdown.go
index 83f94b7..e1f8aa7 100644
--- a/markdown/markdown.go
+++ b/markdown/markdown.go
@@ -37,17 +37,51 @@ func ParseContents(contentPath string) ([]Content, error) {
 	return res, nil
 }
 
+func walk(filename string, linkDirname string, walkFn filepath.WalkFunc) error {
+	symWalkFunc := func(path string, info os.FileInfo, err error) error {
+
+		if fname, err := filepath.Rel(filename, path); err == nil {
+			path = filepath.Join(linkDirname, fname)
+		} else {
+			return err
+		}
+
+		if err == nil && info.Mode()&os.ModeSymlink == os.ModeSymlink {
+			finalPath, err := filepath.EvalSymlinks(path)
+			if err != nil {
+				return err
+			}
+			info, err := os.Lstat(finalPath)
+			if err != nil {
+				return walkFn(path, info, err)
+			}
+			if info.IsDir() {
+				return walk(finalPath, path, walkFn)
+			}
+		}
+
+		return walkFn(path, info, err)
+	}
+	return filepath.Walk(filename, symWalkFunc)
+}
+
+// Walk extends filepath.Walk to also follow symlinks
+func Walk(path string, walkFn filepath.WalkFunc) error {
+	return walk(path, path, walkFn)
+}
+
 // glob returns relative file paths that match the extension
 func glob(dir string, ext string) ([]string, error) {
 	files := []string{}
-	err := filepath.WalkDir(dir, func(p string, d fs.DirEntry, err error) error {
-		if filepath.Ext(p) == ext {
+	err := Walk(dir, func(path string, info fs.FileInfo, err error) error {
+		if filepath.Ext(path) == ext {
 			// just diff
-			relPath, _ := filepath.Rel(dir, p)
+			relPath, _ := filepath.Rel(dir, path)
 
 			files = append(files, relPath)
 		}
 		return nil
+
 	})
 
 	return files, err