Function Bisync

cmd/bisync/operations.go:71–221

Bisync handles lock file, performs bisync run and checks exit status

(ctx context.Context, fs1, fs2 fs.Fs, optArg *Options)

// Bisync handles lock file, performs bisync run and checks exit status
func Bisync(ctx context.Context, fs1, fs2 fs.Fs, optArg *Options) (err error) {
	opt := *optArg // ensure that input is never changed
	b := &bisyncRun{
		fs1:       fs1,
		fs2:       fs2,
		opt:       &opt,
		DebugName: opt.DebugName,
	}

	if opt.CheckFilename == "" {
		opt.CheckFilename = DefaultCheckFilename
	}
	if opt.Workdir == "" {
		opt.Workdir = DefaultWorkdir
	}
	ci := fs.GetConfig(ctx)
	opt.OrigBackupDir = ci.BackupDir

	if ci.TerminalColorMode == fs.TerminalColorModeAlways || (ci.TerminalColorMode == fs.TerminalColorModeAuto && !log.Redirected()) {
		ColorsLock.Lock()
		Colors = true
		ColorsLock.Unlock()
	}

	err = b.setCompareDefaults(ctx)
	if err != nil {
		return err
	}

	b.setResyncDefaults()

	err = b.setResolveDefaults()
	if err != nil {
		return err
	}

	if b.workDir, err = filepath.Abs(opt.Workdir); err != nil {
		return fmt.Errorf("failed to make workdir absolute: %w", err)
	}
	if err = os.MkdirAll(b.workDir, os.ModePerm); err != nil {
		return fmt.Errorf("failed to create workdir: %w", err)
	}

	// Produce a unique name for the sync operation
	b.basePath = bilib.BasePath(ctx, b.workDir, b.fs1, b.fs2)
	b.listing1 = b.basePath + ".path1.lst"
	b.listing2 = b.basePath + ".path2.lst"
	b.newListing1 = b.listing1 + "-new"
	b.newListing2 = b.listing2 + "-new"
	b.aliases = bilib.AliasMap{}

	err = b.checkSyntax()
	if err != nil {
		return err
	}

	// Handle lock file
	err = b.setLockFile()