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Show cache life column in build output
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| import type { CacheControl } from '../../server/lib/cache-control' | ||
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| const timeUnits = [ | ||
| { label: 'y', seconds: 31536000 }, | ||
| { label: 'w', seconds: 604800 }, | ||
| { label: 'd', seconds: 86400 }, | ||
| { label: 'h', seconds: 3600 }, | ||
| { label: 'min', seconds: 60 }, | ||
| { label: 's', seconds: 1 }, | ||
| ] | ||
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| function humanReadableTimeRounded(seconds: number): string { | ||
| // Find the largest fitting unit. | ||
| let candidateIndex = timeUnits.length - 1 | ||
| for (let i = 0; i < timeUnits.length; i++) { | ||
| if (seconds >= timeUnits[i].seconds) { | ||
| candidateIndex = i | ||
| break | ||
| } | ||
| } | ||
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| const candidate = timeUnits[candidateIndex] | ||
| const value = seconds / candidate.seconds | ||
| const isExact = Number.isInteger(value) | ||
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| // For days and weeks only, check if using the next smaller unit yields an | ||
| // exact result. | ||
| if (!isExact && (candidate.label === 'd' || candidate.label === 'w')) { | ||
| const nextUnit = timeUnits[candidateIndex + 1] | ||
| const nextValue = seconds / nextUnit.seconds | ||
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| if (Number.isInteger(nextValue)) { | ||
| return `${nextValue} ${nextUnit.label}` | ||
| } | ||
| } | ||
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| if (isExact) { | ||
| return `${value} ${candidate.label}` | ||
| } | ||
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| return `~${Math.round(value)} ${candidate.label}` | ||
| } | ||
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| export function formatCacheControl(cacheControl: CacheControl): string { | ||
| const { revalidate, expire } = cacheControl | ||
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| if (!revalidate) { | ||
| return '' | ||
| } | ||
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| const readableRevalidate = humanReadableTimeRounded(revalidate) | ||
| const readableExpire = expire ? humanReadableTimeRounded(expire) : '∞' | ||
|
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| return `${readableRevalidate} / ${readableExpire}` | ||
| } |
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