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find number of packages in still < 1.0.0 according to search cache
var columnify = require('columnify')
var fs = require('fs')
var results = [];
var packages = JSON.parse(fs.readFileSync(process.env.HOME + '/.npm/registry.npmjs.org/-/all/.cache.json'))
var packageNames = Object.keys(packages)
// only count packages with dist-tags + latest
var validPackages = packageNames.filter(function(name) {
var item = packages[name];
return (
item["dist-tags"] &&
item["dist-tags"]["latest"]
)
})
var counts = validPackages.reduce(function(counts, name) {
var major = parseInt(packages[name]["dist-tags"]["latest"].split('.')[0], 10)
counts[major] = counts[major] + 1 || 1
return counts
}, {})
var countsMeta = Object.keys(counts).map(function(major) {
return {
"major": major,
total: counts[major],
percent: (counts[major]/validPackages.length * 100).toFixed(2) + '%'
}
})
console.log('')
console.log('Number of packages in the registry at particular major versions:')
console.log('')
console.log(columnify(countsMeta))
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