check_file_names_lower_snake_case.go

// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package lint

import (
	"path/filepath"
	"strings"
	"text/scanner"

	"github.com/gongxulei/prototool/internal/strs"
	"github.com/gongxulei/prototool/internal/text"
)

var fileNamesLowerSnakeCaseLinter = NewLinter(
	"FILE_NAMES_LOWER_SNAKE_CASE",
	"Verifies that the file name is lower_snake_case.proto.",
	checkFileNamesLowerSnakeCase,
)

func checkFileNamesLowerSnakeCase(add func(*text.Failure), dirPath string, descriptors []*FileDescriptor) error {
	return runVisitor(fileNamesLowerSnakeCaseVisitor{baseAddVisitor: newBaseAddVisitor(add)}, descriptors)
}

type fileNamesLowerSnakeCaseVisitor struct {
	baseAddVisitor
}

func (v fileNamesLowerSnakeCaseVisitor) OnStart(descriptor *FileDescriptor) error {
	filename := filepath.Base(descriptor.Filename)
	if !strs.IsLowerSnakeCase(strings.TrimSuffix(filename, filepath.Ext(filename))) {
		v.AddFailuref(scanner.Position{Filename: descriptor.Filename}, "File name should be lower_snake_case.proto.")
	}
	return nil
}