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Website issue tracker link and better search performance #6483

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merged 2 commits into from
Dec 23, 2020

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xFrednet
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This PR implements some improvements to the website:

  1. Added a "Search on Github" link to the "Known problems" section (Closes idea: put link to github ticket search into "known problems" field #5386)
    example_3

    Another mock up I created with the GitHub logo

    example_2

  2. Only starting the search after three letters and improving the search performance in general. (Followup Adapted the website search for better matching #6477)

Testing

These changes can be tested locally by:

  1. Clone this branch
  2. Download the current lint index from the gh-pages branch
  3. Put it next to the util/gh-pages/index.html and open the html file. Make sure that it can load the lint data. (Browsers can be a bit iffy when opening a local html page and loading data)

Sources for search performance:

  1. A stackoverflow about angular filter performance
    • I selected a search debounce of 50ms that's fast enough to catch fast deletion and typing but responsive enough to not bother the user
  2. A stackoverflow about string comparison speeds
  3. JS benchmarks for string search performance (indexOf seams to be the best)

Note: The performance is still a bit poor when going from a specific lint to no search filter. I suspect that angular is recreating all lint items when the filter is cleared causing a major lag spike. The filter functions is at least optimized for little to no search.


changelog: Added a "Search on GitHub" link to the website

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r? @Manishearth

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Dec 20, 2020
@Manishearth
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r? @killercup since you wrote the lint listing page

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@killercup killercup left a comment

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Thanks for the ping Manish!

This looks solid -- the only question I have before approving: Is the " "->"_" thing I commented on on purpose?

Also I can't belive there are enough lints an docs now to make the naive solution slow. Great work everyone! This is an amazing problem to have!

@@ -216,40 +233,31 @@ <h4 class="list-group-item-heading">
};

$scope.bySearch = function (lint, index, array) {
let search_str = $scope.search;
let searchStr = $scope.search;
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Thanks for js-ifying this!


// Search by id
let id_search = search_str.trim().replace(/(\-| )/g, "_");
if (lint.id.includes(id_search)) {
if (lint.id.indexOf(searchStr.replace("-", "_")) !== -1) {
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The previous code also replaced spaces with underscores. Not sure if this is still desired but I at least wanted to point it out :)

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@xFrednet xFrednet Dec 22, 2020

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Jup this is on purpose. The space search is now covered by line 252 if (lint.id.indexOf(therms[index]) !== -1) this allows the words to be out of order which is likely when somebody just types them in. It could also reduce performance since we are not using a regex in the replace function, but I'm not sure about that :)

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Ah of course, that makes sense!

(I would expect any decent JS enngine to optimize the simple regex to a byte match so it's probably as fast as the literal replace.)

@@ -180,6 +181,22 @@ <h4 class="list-group-item-heading">
}
}

function searchLint(lint, therm) {
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Thanks for pulling this out. As an aside, I think therm should be term here and below?

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Spelling is not always my strong suite 😅 thanks for pointing that out. It should be fixed now 🙃

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Thanks for the quick reply, looks good to me!


// Search by id
let id_search = search_str.trim().replace(/(\-| )/g, "_");
if (lint.id.includes(id_search)) {
if (lint.id.indexOf(searchStr.replace("-", "_")) !== -1) {
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Ah of course, that makes sense!

(I would expect any decent JS enngine to optimize the simple regex to a byte match so it's probably as fast as the literal replace.)

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@bors r+

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bors commented Dec 23, 2020

📌 Commit f055e7f has been approved by killercup

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bors commented Dec 23, 2020

⌛ Testing commit f055e7f with merge 5c98135...

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bors commented Dec 23, 2020

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: killercup
Pushing 5c98135 to master...

@bors bors merged commit 5c98135 into rust-lang:master Dec 23, 2020
@xFrednet xFrednet deleted the 5386-github-ticket-search branch July 28, 2021 16:43
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idea: put link to github ticket search into "known problems" field
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