feat: filebrowser with encfs

rules/rules.go

@@ -0,0 +1,51 @@
+package rules
+
+import (
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+// Checker is a Rules checker.
+type Checker interface {
+	Check(path string) bool
+}
+
+// Rule is a allow/disallow rule.
+type Rule struct {
+	Regex  bool    `json:"regex"`
+	Allow  bool    `json:"allow"`
+	Path   string  `json:"path"`
+	Regexp *Regexp `json:"regexp"`
+}
+
+// MatchHidden matches paths with a basename
+// that begins with a dot.
+func MatchHidden(path string) bool {
+	return path != "" && strings.HasPrefix(filepath.Base(path), ".")
+}
+
+// Matches matches a path against a rule.
+func (r *Rule) Matches(path string) bool {
+	if r.Regex {
+		return r.Regexp.MatchString(path)
+	}
+
+	return strings.HasPrefix(path, r.Path)
+}
+
+// Regexp is a wrapper to the native regexp type where we
+// save the raw expression.
+type Regexp struct {
+	Raw    string `json:"raw"`
+	regexp *regexp.Regexp
+}
+
+// MatchString checks if a string matches the regexp.
+func (r *Regexp) MatchString(s string) bool {
+	if r.regexp == nil {
+		r.regexp = regexp.MustCompile(r.Raw)
+	}
+
+	return r.regexp.MatchString(s)
+}

rules/rules_test.go

@@ -0,0 +1,23 @@
+package rules
+
+import "testing"
+
+func TestMatchHidden(t *testing.T) {
+	cases := map[string]bool{
+		"/":                   false,
+		"/src":                false,
+		"/src/":               false,
+		"/.circleci":          true,
+		"/a/b/c/.docker.json": true,
+		".docker.json":        true,
+		"Dockerfile":          false,
+		"/Dockerfile":         false,
+	}
+
+	for path, want := range cases {
+		got := MatchHidden(path)
+		if got != want {
+			t.Errorf("MatchHidden(%s)=%v; want %v", path, got, want)
+		}
+	}
+}