cppcheck.go

/*
 Copyright 2024 Qiniu Cloud (qiniu.com).

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

package cppcheck

import (
	"context"

	"github.com/qiniu/reviewbot/internal/linters"
	"github.com/qiniu/reviewbot/internal/lintersutil"
	"github.com/qiniu/x/xlog"
)

// refer to https://cppcheck.sourceforge.io/
var linterName = "cppcheck"

func init() {
	linters.RegisterPullRequestHandler(linterName, cppcheckHandler)
	// see https://stackoverflow.com/a/3223792/5057547
	linters.RegisterLinterLanguages(linterName, []string{".c", ".cpp", ".h", ".hpp", ".cc", ".cxx", ".hxx", ".c++"})
}

func cppcheckHandler(ctx context.Context, a linters.Agent) error {
	log := lintersutil.FromContext(ctx)
	if linters.IsEmpty(a.LinterConfig.Args...) {
		a.LinterConfig.Args = append([]string{}, "--quiet", "--template='{file}:{line}:{column}: {message}'", ".")
	}

	return linters.GeneralHandler(ctx, log, a, linters.ExecRun, parser)
}

func parser(log *xlog.Logger, input []byte) (map[string][]linters.LinterOutput, []string) {
	lineParser := func(line string) (*linters.LinterOutput, error) {
		if len(line) <= 2 {
			return nil, nil
		}

		// remove the first and last character of the line,
		// which are the single quotes
		line = line[1 : len(line)-1]
		return linters.GeneralLineParser(line)
	}
	return linters.Parse(log, input, lineParser)
}