Version 1.0.0
@stackline/vfile-statistics
vfile utility to count messages per category: failures, warnings, etc
Independent maintenance of vfile-statistics 2.0.1. Original authors and licenses are retained.
Installation
# Preserve existing imports with an npm alias
npm install vfile-statistics@npm:@stackline/vfile-statistics@1.0.0
# Or use the scoped package name in your imports
npm install @stackline/vfile-statistics@1.0.0Node.js: See compatibility notes. Read the compatibility and maintenance notes before migrating.
Usage and API
The reference below may retain upstream package names. Use the alias installation above to run those imports with this Stackline release.
@stackline/vfile-statistics
Independent maintenance fork of vfile-statistics@2.0.1, preserving its API and published type declarations.
npm install @stackline/vfile-statistics
# Keep existing imports:
npm install vfile-statistics@npm:@stackline/vfile-statistics@1.0.0
Stackline · Issues · Community
See UPSTREAM.md for source identity and issue review, and CHANGELOG.md for maintenance changes. Functional tests also run against the final npm tarball; releases are published from GitHub Actions with provenance.
Upstream documentation
vfile-statistics
vfile utility to count messages per category (fatal, warn, info, etc).
Contents
What is this?
This tiny package gives you stats about messages in files.
When should I use this?
This is really tiny, you could do it yourself, but this is useful as a building block.
Install
This package is ESM only. In Node.js (version 14.14+ and 16.0+), install with npm:
npm install vfile-statistics
In Deno with esm.sh:
import {statistics} from 'https://esm.sh/vfile-statistics@2'
In browsers with esm.sh:
<script type="module">
import {statistics} from 'https://esm.sh/vfile-statistics@2?bundle'
</script>
Use
import {VFile} from 'vfile'
import {statistics} from 'vfile-statistics'
const file = new VFile({path: '~/example.md'})
file.message('This could be better')
file.message('That could be better')
try {
file.fail('This is terribly wrong')
} catch {}
file.info('This is perfect')
console.log(statistics(file))
Yields:
{fatal: 1, nonfatal: 3, warn: 2, info: 1, total: 4}
API
This package exports the identifier statistics.
There is no default export.
statistics(file)
Get stats for a file, list of files, or list of messages.
Parameters
file(VFile,VFileMessage,Array<VFile | VFileMessage>, optional) — file, message, or list of files or messages.
Returns
Statistics (Statistics).
Statistics
Statistics (TypeScript type).
Fields
fatal— fatal errors (fatal: true)warn— warning messages (fatal: false)info— informational messages (fatal: null | undefined)nonfatal— warning or info messagestotal— all messages
Types
This package is fully typed with TypeScript.
It exports the additional type Statistics.
Compatibility
Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 14.14+ and 16.0+. Our projects sometimes work with older versions, but this is not guaranteed.
Contribute
See contributing.md in vfile/.github for ways to
get started.
See support.md for ways to get help.
This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.
License
Upstream issues and maintenance review
Upstream and maintenance review
This package maintains vfile-statistics@2.0.1 under the independent @stackline/vfile-statistics name.
- Source: https://github.com/vfile/vfile-statistics/tree/89e02204e340f99347cb4c2d8d2cfe57214a9cb7
- Public npm artifact integrity:
sha512-W6dkECZmP32EG/l+dp2jCLdYzmnDBIw6jwiLZSER81oR5AHRcVqL+k3Z+pfH1R73le6ayDkJRMk0sutj1bMVeg==. - Upstream issue evidence checked: 2026-09-29T00:22:21.287727+00:00.
- Original license and author notices are retained.
- The upstream published runtime files and declarations are hash-checked in
.stackline/upstream.json. Any runtime fix is explicitly listed there. - Functional upstream suites run against the source and extracted final package. Development tools were reduced to those used by validation; full source and runtime audits must pass.
- Only direct dependencies of the original Stackline portfolio are in this migration. This is not a claim that all transitive projects are maintained by Stackline.
Issue triage
The queried open-issue list contained no issue entries. This does not establish that the upstream is abandoned or bug-free. No runtime bug fix is claimed for this initial maintenance release.
The evidence query fetched the latest 100 open and 30 closed issue/PR entries and removed PRs. Closed entries were collected for context; this report does not claim an exhaustive historic review.
Release discipline
The source commit, passing CI and CodeQL, reviewed CI tarball hash, npm provenance, normal and aliased installs, and immutable GitHub release are checked before a release is complete. Published versions and tags are never replaced.
Release changes
Changelog
1.0.0
- Start Stackline maintenance of the documented upstream API.
- Preserve and verify published runtime files and TypeScript declarations.
- Run upstream functional suites against both source and the final package.
- Publish the reviewed CI artifact through GitHub Actions with provenance and immutable release evidence.
Release files and references
Package bytes, npm provenance and the immutable GitHub release were verified for this version. Security checks describe the reviewed release; documented compatibility risks and upstream reports are not blanket claims of resolution.