'use strict'
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const execGit = require('./execGit')
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module.exports = async function getStagedFiles(options) {
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try {
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// Docs for --diff-filter option: https://git-scm.com/docs/git-diff#Documentation/git-diff.txt---diff-filterACDMRTUXB82308203
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// Docs for -z option: https://git-scm.com/docs/git-diff#Documentation/git-diff.txt--z
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const lines = await execGit(
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['diff', '--staged', '--diff-filter=ACMR', '--name-only', '-z'],
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options
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)
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// With `-z`, git prints `fileA\u0000fileB\u0000fileC\u0000` so we need to remove the last occurrence of `\u0000` before splitting
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// eslint-disable-next-line no-control-regex
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return lines ? lines.replace(/\u0000$/, '').split('\u0000') : []
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} catch {
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return null
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}
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}
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