fix: import should always be relative to current file directory

caddyfile/parse.go

@@ -218,8 +218,13 @@ func (p *parser) doImport() error {
 	}
 
 	var matches []string
-	relImportPattern := filepath.Join(filepath.Dir(absFile), importPattern)
-	matches, err = filepath.Glob(relImportPattern)
+	var globPattern string
+	if !filepath.IsAbs(importPattern) {
+		globPattern = filepath.Join(filepath.Dir(absFile), importPattern)
+	} else {
+		globPattern = importPattern
+	}
+	matches, err = filepath.Glob(globPattern)
 
 	if err != nil {
 		return p.Errf("Failed to use import pattern %s: %v", importPattern, err)
@@ -239,6 +244,27 @@ func (p *parser) doImport() error {
 		if err != nil {
 			return err
 		}
+		var importLine int
+		importDir := filepath.Dir(importFile)
+		for i, token := range newTokens {
+			if token.Text == "import" {
+				importLine = token.Line
+				continue
+			}
+			if token.Line == importLine {
+				var abs string
+				if !filepath.IsAbs(importFile) {
+					abs = filepath.Join(filepath.Dir(absFile), token.Text)
+				} else {
+					abs = filepath.Join(importDir, token.Text)
+				}
+				newTokens[i] = Token{
+					Text: abs,
+					Line: token.Line,
+					File: token.File,
+				}
+			}
+		}
 		importedTokens = append(importedTokens, newTokens...)
 	}