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remark-github

v12.0.0

Published

remark plugin to autolink references like in GitHub issues, PRs, and comments

Downloads

627,178

Readme

remark-github

Build Coverage Downloads Size Sponsors Backers Chat

remark plugin to link references to commits, issues, and users, in the same way that GitHub does in comments, issues, PRs, and releases (see Writing on GitHub).

Contents

What is this?

This package is a unified (remark) plugin to link references to commits, issues, and users: @wooorm -> [**@wooorm**](https://github.com/wooorm).

When should I use this?

This project is useful if you want to emulate how markdown would work in GitHub comments, issues, PRs, or releases, but it’s actually displayed somewhere else (on a website, or in other places on GitHub which don’t link references, such as markdown in a repo or Gist). This plugin does not support other platforms such as GitLab or Bitbucket and their custom features.

A different plugin, remark-gfm, adds support for GFM (GitHub Flavored Markdown). GFM is a set of extensions (autolink literals, footnotes, strikethrough, tables, and tasklists) to markdown that are supported everywhere on GitHub.

Another plugin, remark-breaks, turns soft line endings (enters) into hard breaks (<br>s). GitHub does this in a few places (comments, issues, PRs, and releases), but it’s not semantic according to HTML and not compliant to markdown.

Yet another plugin, remark-frontmatter, adds support for YAML frontmatter. GitHub supports frontmatter for files in Gists and repos.

Install

This package is ESM only. In Node.js (version 16+), install with npm:

npm install remark-github

In Deno with esm.sh:

import remarkGithub, {defaultBuildUrl} from 'https://esm.sh/remark-github@12'

In browsers with esm.sh:

<script type="module">
  import remarkGithub, {defaultBuildUrl} from 'https://esm.sh/remark-github@12?bundle'
</script>

Use

Say we have the following file example.md:

Some references:

*   Commit: f8083175fe890cbf14f41d0a06e7aa35d4989587
*   Commit (fork): foo@f8083175fe890cbf14f41d0a06e7aa35d4989587
*   Commit (repo): remarkjs/remark@e1aa9f6c02de18b9459b7d269712bcb50183ce89
*   Issue or PR (`#`): #1
*   Issue or PR (`GH-`): GH-1
*   Issue or PR (fork): foo#1
*   Issue or PR (project): remarkjs/remark#1
*   Mention: @wooorm

Some links:

*   Commit: <https://github.com/remarkjs/remark/commit/e1aa9f6c02de18b9459b7d269712bcb50183ce89>
*   Commit comment: <https://github.com/remarkjs/remark/commit/ac63bc3abacf14cf08ca5e2d8f1f8e88a7b9015c#commitcomment-16372693>
*   Issue or PR: <https://github.com/remarkjs/remark/issues/182>
*   Issue or PR comment: <https://github.com/remarkjs/remark-github/issues/3#issue-151160339>
*   Mention: <https://github.com/ben-eb>

…and a module example.js:

import {remark} from 'remark'
import remarkGfm from 'remark-gfm'
import remarkGithub from 'remark-github'
import {read} from 'to-vfile'

const file = await remark()
  .use(remarkGfm)
  .use(remarkGithub)
  .process(await read('example.md'))

console.log(String(file))

…then running node example.js yields:

Some references:

* Commit: [`f808317`](https://github.com/remarkjs/remark-github/commit/f8083175fe890cbf14f41d0a06e7aa35d4989587)
* Commit (fork): [foo@`f808317`](https://github.com/foo/remark-github/commit/f8083175fe890cbf14f41d0a06e7aa35d4989587)
* Commit (repo): [remarkjs/remark@`e1aa9f6`](https://github.com/remarkjs/remark/commit/e1aa9f6c02de18b9459b7d269712bcb50183ce89)
* Issue or PR (`#`): [#1](https://github.com/remarkjs/remark-github/issues/1)
* Issue or PR (`GH-`): [GH-1](https://github.com/remarkjs/remark-github/issues/1)
* Issue or PR (fork): [foo#1](https://github.com/foo/remark-github/issues/1)
* Issue or PR (project): [remarkjs/remark#1](https://github.com/remarkjs/remark/issues/1)
* Mention: [**@wooorm**](https://github.com/wooorm)

Some links:

* Commit: [remarkjs/remark@`e1aa9f6`](https://github.com/remarkjs/remark/commit/e1aa9f6c02de18b9459b7d269712bcb50183ce89)
* Commit comment: [remarkjs/remark@`ac63bc3` (comment)](https://github.com/remarkjs/remark/commit/ac63bc3abacf14cf08ca5e2d8f1f8e88a7b9015c#commitcomment-16372693)
* Issue or PR: [remarkjs/remark#182](https://github.com/remarkjs/remark/issues/182)
* Issue or PR comment: [#3 (comment)](https://github.com/remarkjs/remark-github/issues/3#issue-151160339)
* Mention: <https://github.com/ben-eb>

API

This package exports the identifier defaultBuildUrl. The default export is remarkGithub.

defaultBuildUrl(values)

Create a URL to GH.

Parameters
Returns

URL to use (string).

unified().use(remarkGithub[, options])

Link references to users, commits, and issues, in the same way that GitHub does in comments, issues, PRs, and releases.

Parameters
  • options (Options, optional) — configuration
Returns

Transform (Transformer).

BuildUrl

Create a URL (TypeScript type).

Parameters
Returns

URL to use or false to not link (string | false).

BuildUrlCommitValues

Info for commit hash (TypeScript type).

Fields
  • hash (string) — commit hash value
  • project (string) — project name
  • type ('commit') — kind
  • user (string) — owner of repo

BuildUrlCompareValues

Info for commit hash ranges (TypeScript type).

Fields
  • base (string) — SHA of the range start
  • compare (string) — SHA of the range end
  • project (string) — project name
  • type ('compare') — kind
  • user (string) — owner of repo

BuildUrlIssueValues

Info for issues (TypeScript type).

Fields
  • no (string) — issue number
  • project (string) — project name
  • type ('issue') — kind
  • user (string) — owner of repo

BuildUrlMentionValues

Info for mentions (TypeScript type).

Fields
  • type ('mention') — kind
  • user (string) — user name

BuildUrlValues

Info (TypeScript type).

Type
type BuildUrlValues =
  | BuildUrlCommitValues
  | BuildUrlCompareValues
  | BuildUrlIssueValues
  | BuildUrlMentionValues

Options

Configuration (TypeScript type).

Fields
  • buildUrl (BuildUrl, default: defaultBuildUrl) — change how things are linked
  • mentionStrong (boolean, default: true) — wrap mentions in strong; this makes them render more like how GitHub styles them, but GH itself uses CSS instead of strong
  • repository (string, default: repository from packag.json in CWD in Node, otherwise required) — repository to link against; should point to a GitHub repository (such as 'user/project')

Examples

Example: buildUrl

A buildUrl can be passed to not link mentions. For example, by changing example.js from before like so:

@@ -1,11 +1,15 @@
 import {remark} from 'remark'
 import remarkGfm from 'remark-gfm'
-import remarkGithub from 'remark-github'
+import remarkGithub, {defaultBuildUrl} from 'remark-github'
 import {read} from 'to-vfile'

 const file = await remark()
   .use(remarkGfm)
-  .use(remarkGithub)
+  .use(remarkGithub, {
+    buildUrl(values) {
+      return values.type === 'mention' ? false : defaultBuildUrl(values)
+    }
+  })
   .process(await read('example.md'))

 console.log(String(file))

To instead point mentions to a different place, change example.js like so:

@@ -1,11 +1,17 @@
 import {remark} from 'remark'
 import remarkGfm from 'remark-gfm'
-import remarkGithub from 'remark-github'
+import remarkGithub, {defaultBuildUrl} from 'remark-github'
 import {read} from 'to-vfile'

 const file = await remark()
   .use(remarkGfm)
-  .use(remarkGithub)
+  .use(remarkGithub, {
+    buildUrl(values) {
+      return values.type === 'mention'
+        ? `https://yourwebsite.com/${values.user}/`
+        : defaultBuildUrl(values)
+    }
+  })
   .process(await read('example.md'))

 console.log(String(file))

Syntax

The following references are supported:

Autolinks to these references are also transformed: https://github.com/wooorm -> [**@wooorm**](https://github.com/wooorm)

Types

This package is fully typed with TypeScript. It exports the additional types BuildUrl, BuildUrlCommitValues, BuildUrlCompareValues, BuildUrlIssueValues, BuildUrlMentionValues, BuildUrlValues, DefaultBuildUrl, Options.

Compatibility

Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, remark-github@^12, compatible with Node.js 16.

This plugin works with unified version 6+ and remark version 7+.

Security

Use of remark-github does not involve rehype (hast). It does inject links based on user content, but those links only go to GitHub. There are no openings for cross-site scripting (XSS) attacks.

Related

  • remark-gfm — support GFM (autolink literals, footnotes, strikethrough, tables, tasklists)
  • remark-breaks — support breaks without needing spaces or escapes (enters to <br>)
  • remark-frontmatter — support frontmatter (YAML, TOML, and more)

Contribute

See contributing.md in remarkjs/.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

MIT © Titus Wormer