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fix: skip writing snap file, if content didn't change #1456

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merged 2 commits into from Jun 10, 2022
Merged

fix: skip writing snap file, if content didn't change #1456

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4faf894
fix: skip writing snap file, if content didn't change
sheremet-va Jun 9, 2022
51d4dbf
chore: cleanup
sheremet-va Jun 9, 2022
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8 changes: 7 additions & 1 deletion packages/vitest/src/integrations/snapshot/port/utils.ts
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Expand Up @@ -151,10 +151,16 @@ export async function saveSnapshotFile(
key => `exports[${printBacktickString(key)}] = ${printBacktickString(normalizeNewlines(snapshotData[key]))};`,
)

const content = `${writeSnapshotVersion()}\n\n${snapshots.join('\n\n')}\n`
const skipWriting = fs.existsSync(snapshotPath) && (await fsp.readFile(snapshotPath, 'utf8')) === content

if (skipWriting)
return

ensureDirectoryExists(snapshotPath)
await fsp.writeFile(
snapshotPath,
`${writeSnapshotVersion()}\n\n${snapshots.join('\n\n')}\n`,
content,
'utf-8',
)
}
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