fix: export basic file from dir or shard #399

Job	Run time
js-test-and-release / build	59s
js-test-and-release / check	1m 5s
js-test-and-release / test-node (windows-latest, lts/*)	3m 22s
js-test-and-release / test-firefox-webworker	24s
js-test-and-release / test-chrome	1m 10s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	1m 29s
js-test-and-release / test-firefox	1m 19s
js-test-and-release / test-node (macos-latest, lts/*)	1m 59s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	1m 26s
js-test-and-release / test-electron-main	26s
js-test-and-release / test-webkit (macos-latest, lts/*)	1m 31s
js-test-and-release / test-chrome-webworker	23s
js-test-and-release / test-node (ubuntu-latest, lts/*)	58s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	2m 14s
js-test-and-release / test-electron-renderer	28s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	19m 13s

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