19 lines
837 B
JavaScript
19 lines
837 B
JavaScript
const getApplicableVersions = require('../../lib/get-applicable-versions')
|
|
|
|
module.exports = async function features (req, res, next) {
|
|
if (!req.context.page) return next()
|
|
|
|
// Determine whether the currentVersion belongs to the list of versions the feature is available in.
|
|
Object.keys(req.context.site.data.features).forEach(featureName => {
|
|
const { versions } = req.context.site.data.features[featureName]
|
|
const applicableVersions = getApplicableVersions(versions, req.path)
|
|
|
|
// Adding the resulting boolean to the context object gives us the ability to use
|
|
// `{% if featureName ... %}` conditionals in content files.
|
|
const isFeatureAvailableInCurrentVersion = applicableVersions.includes(req.context.currentVersion)
|
|
req.context[featureName] = isFeatureAvailableInCurrentVersion
|
|
})
|
|
|
|
return next()
|
|
}
|