`node` first, `test` second

[wooorm]

Unist utilities operate on nodes. Makes more sense passing the Node first. Then the test. Optionally other stuff.

[wooorm]

@ChristianMurphy What do you think of this?

Example use

var is = require('unist-util-is')

var node = {type: 'strong'}
var parent = {type: 'paragraph', children: [node]}

is() // => false
is({children: []}) // => false
is(node) // => true
is(node, 'strong') // => true
is(node, 'emphasis') // => false

is(node, node) // => true
is(parent, {type: 'paragraph'}) // => true
is(parent, {type: 'strong'}) // => false

is(node, test) // => false
is(node, test, 4, parent) // => false
is(node, test, 5, parent) // => true

function test(node, n) {
  return n === 5
}

Reasoning:

• Aligns with hast-util-is-element
• Typically more readable (cases where there is a node and a test)
• But it is a bit weird node, index, parent are not passed next to each other

Downside:

• Will break people directly using unist-util-is, although most people use it through something else, like unist-util-visit, which ca be updated to use convert anyway.

[ChristianMurphy]

An interesting idea 🤔
Thinking about the structure, it seems to imply that one node will be tested in several different ways.
Not a use case I have had yet, but it makes sense.

It seems like it may overlap a bit with https://github.com/tc39/proposal-pattern-matching

---

Aligns with hast-util-is-element

It makes sense to bring these in alignment.

Typically more readable (cases where there is a node and a test)

I've typically created the test as it's own named function. To me:

is(test, node);
is(node, test);

are pretty close in readability. 🤷‍♂️

I can see where a more complex condition, put inline could make putting the test after more attractive.

is((n) => {
  /* some
   * complex
   * conditionals */
  },
  node
)

is(node, (n) => {
  /* some
   * complex
   * conditionals */
  }
)

---

Will break people directly using unist-util-is

There may be an opportunity to create a code mod to help people upgrade.
https://github.com/facebook/jscodeshift

E.G. from the react community https://github.com/reactjs/react-codemod

[ChristianMurphy]

Another thing that gives me pause, there are 62 packages that would need to be updated https://github.com/syntax-tree/unist-util-is/network/dependents?dependent_type=PACKAGE

Which is partly why I'd be interested in a code mod.

[wooorm]

I made a list of the 13 projects under syntax-tree that are using this, and they can almost all be moved to convert anyway, which I’ll do after this!
Most of the other packages seem to either be a) not used in the last year, or b) under the rest of the collective. So I’m not toooo worried about this.

I think code mods are interesting, but wonder how much time would go into creating and managing them? Makes sense for big user-facing stuff like React of course, but as the unified collective (except for MDX) is so low level and changes are infrequent...

[ChristianMurphy]

Makes sense for big user-facing stuff like React of course, but as the unified collective (except for MDX) is so low level and changes are infrequent

Makes sense

made a list of the 13 projects under syntax-tree that are using this, and they can almost all be moved to convert anyway, which I’ll do after this!

Semi-related, would there be interest in leveraging https://dependabot.com or https://renovatebot.com to help automate part of the process?

[wooorm]

Semi-related, would there be interest in leveraging https://dependabot.com or https://renovatebot.com to help automate part of the process?

Yes! But it has to not be annoying! I switched to use greenkeeper everywhere, before, but that made PRs for everything, all the time. I’m maintaining about 400 projects and if I update remark-cli I don’t want to deal with 400 PRs 😅

I believe renovatebot (and maybe dependabot, or even greenkeeper now) have better support from the setup I saw you use, such as sending PRs every X span of time?

Mostly I think I’d be interest in something that only checks dependencies, not dev-dependencies. Is that possible?

[ChristianMurphy]

have better support from the setup I saw you use, such as sending PRs every X span of time?
Mostly I think I’d be interest in something that only checks dependencies, not dev-dependencies. Is that possible?

It is, it could look something like

{
  "extends": [
    "config:base",
    ":preserveSemverRanges", // keep ~ and ^ ranges
    "schedule:weekly" // only open PRs early monday morning
  ],
  "devDependencies": {
     "enabled": false // don't auto update dev dependencies
  }
}

There'd also be the option to group PRs from Unified repos.
E.G. if a repo depends on remark-parse, remark-stringify, and remark-frontmatter.
All three would be updated in a single PR.

{
  "extends": [
    "config:base",
    ":preserveSemverRanges", // keep ~ and ^ ranges
    "schedule:weekly" // only open PRs early monday morning
  ],
  "devDependencies": {
     "enabled": false // don't auto update dev dependencies
  },
  "packageRules": [ // group unified project dependencies together
    {
      "groupName": "unified",
      "packagePatterns": [
        "^unified"
      ]
    },
    {
      "groupName": "remark",
      "packagePatterns": [
        "^remark"
      ]
    },
    {
      "groupName": "rehype",
      "packagePatterns": [
        "^rehype"
      ]
    },
    {
      "groupName": "redot",
      "packagePatterns": [
        "^redot"
      ]
    }
  ]
}

there'd also be the option to create a renovate-config-unified or unified-config-wooorm to allow all projects to have their renovate settings managed at one time.
https://renovatebot.com/docs/config-presets/#preset-hosting

[ChristianMurphy]

Dependabot allows for scheduling update PRs to be opened weekly.
It does not currently have options for skipping dev dependency updates, grouping PRs, or shared configuration.

[ChristianMurphy]

@wooorm What would be the next step for this?
Is this something that could be setup directly, or is this something that would be a better fit for the new RFC process?

[wooorm]

So here are my thoughts, what do you think?

I’d say try it out for a month and circle back how it went?! We could start out in just one org, syntax-tree, try a config in a repo there (could we use syntax-tree/.github?).
We could later either start pointing from each package to a unified preset, or point the per-org preset to a unified preset?
Seems like renovate can do what’s needed (I personally find the deps/dev-deps differentiation important). Not sure if the grouping is needed yet? We can try that out later when it works and we’re switching everything over?