woj-server/internal/service/runner/compile.go

package runner

import (
	"fmt"
	"git.0x7f.app/WOJ/woj-server/internal/e"
	"git.0x7f.app/WOJ/woj-server/pkg/file"
	"git.0x7f.app/WOJ/woj-server/pkg/utils"
	"github.com/opencontainers/runtime-spec/specs-go"
	"go.uber.org/zap"
	"io"
	"os"
	"path/filepath"
	"time"
)

func (s *service) Compile(meta *JudgeMeta) (*JudgeStatus, e.Status) {
	// 1. ensure problem/user exists
	status := s.ValidatePath(meta)
	if status != e.Success {
		return &JudgeStatus{Message: "check failed"}, status
	}

	config, cLang, status := s.GetConfig(meta, true)
	if status != e.Success {
		s.log.Error("[compile] parse config failed", zap.Any("meta", *meta))
		return &JudgeStatus{
			Message: "parse config failed",
			Tasks:   []TaskStatus{{Verdict: VerdictSystemError, Message: "parse config failed"}},
		}, e.RunnerProblemParseFailed
	}

	// 2. prepare judge environment
	workDir := filepath.Join(UserDir, meta.User)
	judgeDir := filepath.Join(ProblemDir, fmt.Sprintf("%d", meta.Version), "judge")

	sourceFile := filepath.Join(workDir, fmt.Sprintf("%s.%s", meta.User, meta.Lang))
	targetFile := filepath.Join(workDir, fmt.Sprintf("%s.out", meta.User))

	logFile := filepath.Join(workDir, fmt.Sprintf("%s.compile.log", meta.User))
	log, err := os.Create(logFile)
	if err != nil {
		s.log.Error("[compile] create log file failed", zap.Error(err))
		return &JudgeStatus{
			Message: "create log file failed",
			Tasks:   []TaskStatus{{Verdict: VerdictSystemError, Message: "create log file failed"}},
		}, e.RunnerUserCompileFailed
	}
	defer func(log *os.File) {
		_ = log.Close()
	}(log)

	// 3. compile
	err = utils.NewMust().
		DoAny(func() error { return os.Remove(targetFile) }).
		Do(func() error { return file.TouchErr(targetFile) }).
		Do(func() error {
			l, ok := config.FilterLanguage(meta.Lang)
			if !ok {
				return e.RunnerProblemParseFailed.AsError()
			}
			script := l.JudgeScript()

			args := &RunArgs{
				Program: ProgramArgs{
					Args: []string{"sh", "-c", fmt.Sprintf("cd /woj/user && make -f %s compile", script)},
					Env:  []string{fmt.Sprintf("USER_PROG=%s", meta.User), fmt.Sprintf("LANG=%s", meta.Lang)},
				},
				Runtime: RuntimeArgs{
					Image:   ContainerImageFull,
					Pid:     int64(cLang.Runtime.Compile.NProcLimit + 2), // bash + make
					Memory:  uint64(cLang.Runtime.Compile.MemoryLimit * 1024 * 1024),
					Timeout: time.Duration((cLang.Runtime.Compile.TimeLimit+1000)/1000) * time.Second,
				},
				IO: IOArgs{
					Output: log,
					Limit:  4 * 1024, // 4 KB
				},
			}
			args.Runtime.Mount = []specs.Mount{
				{
					Source:      judgeDir,
					Destination: "/woj/problem/judge",
					Type:        "bind",
					Options:     []string{"rbind", "ro"},
				},
				{
					Source:      sourceFile,
					Destination: fmt.Sprintf("/woj/user/%s.%s", meta.User, meta.Lang),
					Type:        "bind",
					Options:     []string{"rbind", "ro"},
				},
				{
					Source:      targetFile,
					Destination: fmt.Sprintf("/woj/user/%s.out", meta.User),
					Type:        "bind",
					Options:     []string{"rbind"},
				},
			}

			id := s.ContainerRunPool(args)
			return s.pool.WaitForTask(id)
		}).
		Done()

	if err != nil {
		s.log.Info("[compile] compile failed", zap.Error(err), zap.Any("meta", *meta))
		status = e.RunnerUserCompileFailed
	}

	// 4. read log
	_, _ = log.Seek(0, io.SeekStart)
	msg, err := io.ReadAll(log)
	msg = utils.If(err == nil, msg, nil)
	msgText := string(msg)

	if !file.Exist(targetFile) || file.Empty(targetFile) {
		return &JudgeStatus{
				Message: "compile failed",
				Tasks:   []TaskStatus{{Verdict: VerdictCompileError, Message: msgText}}},
			utils.If(status == e.Success, e.RunnerUserCompileFailed, status)
	}

	return &JudgeStatus{}, e.Success
}