40 lines
761 B
Go
40 lines
761 B
Go
package blogposts
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import (
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"errors"
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"io/fs"
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"strings"
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)
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var markdownSuffix = map[string]struct{}{
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"md": {},
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}
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var ErrUnknownFileType = errors.New("unknown file type, must be markdown")
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func NewPostsFromFS(fileSystem fs.FS) ([]Post, error) {
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dir, err := fs.ReadDir(fileSystem, ".")
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if err != nil {
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return nil, err
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}
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var posts []Post
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for _, f := range dir {
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fileName := f.Name()
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if !isMarkdownFile(fileName) {
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return nil, ErrUnknownFileType
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}
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post, err := getPost(fileSystem, fileName)
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if err != nil {
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return nil, err
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}
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posts = append(posts, post)
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}
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return posts, nil
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}
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func isMarkdownFile(fileName string) bool {
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splitted := strings.Split(fileName, ".")
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_, ok := markdownSuffix[splitted[len(splitted)-1:][0]]
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return ok
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}
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