56 lines
2.2 KiB
JavaScript
56 lines
2.2 KiB
JavaScript
import supportedOperators from '../../lib/liquid-tags/ifversion-supported-operators.js'
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// Turn an array of Liquid conditional objects that results from ./get-liquid-conditionals.js into a more
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// detailed array of objects that includes GHES versioning information.
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export default function getVersionBlocks (rawBlocks) {
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const versionBlocks = []
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rawBlocks.forEach(block => {
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const condKeyword = block.conditional.includes('ifversion') ? 'ifversion' : 'elsif'
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const condOnly = block.conditional.replace(/{%-? /, '').replace(/ -?%}/, '')
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const condWithLiquid = block.conditional
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// E.g., [ 'ghes', 'ghes < 2.21', 'ghae' ]
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const condArgs = condOnly
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.replace('ifversion ', '')
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.replace('elsif ', '')
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// Obfuscate with an arbitrary character we don't want to preserve, so we can split on that character.
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// TODO: If preserving `or` and `and` turns out NOT to be important, we can split on those words instead.
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.replaceAll(/ (or|and) /g, ' ~$1 ')
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.split('~')
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.map(arg => arg.trim())
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// E.g., [ 'ghes', '<', '2.21' ]
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const ranges = condArgs
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.map(arg => arg.split(' '))
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.filter(args => args.some(arg => supportedOperators.includes(arg)))
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.map(args => args.filter(arg => !(arg === 'or' || arg === 'and' | arg === '')))
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// Remove the start tag and the end tag so we are left with the inner text.
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// We don't need to do anything with this inner text other than check for nested conds.
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let innerText = block.text.replace(condWithLiquid, '')
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const indexOfLastEndif = innerText.lastIndexOf(' endif ')
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innerText = innerText.slice(0, indexOfLastEndif)
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// Remove any nested conditional content so we can check the top-level only.
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const topLevelContent = innerText
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.replace(/{%-? ifversion[\S\s]+?{%-? endif -?%}/g, '')
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versionBlocks.push({
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condKeyword,
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condOnly,
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condWithLiquid,
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condArgs,
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ranges,
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content: block.text,
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hasElsif: /{%-? elsif /.test(topLevelContent), // see if there is a nested elsif
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hasElse: /{%-? else -?%}/.test(topLevelContent),
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endIfText: block.endIfText,
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startTagColumn1: block.positionStart[1] === 1,
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endTagColumn1: block.positionEnd[1] === 1
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})
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})
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return versionBlocks
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}
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