Commit Graph

132 Commits

Author SHA1 Message Date
Anders Kaseorg 2f80415756 eslint: Fix unicorn/no-lonely-if.
https://github.com/sindresorhus/eslint-plugin-unicorn/blob/v24.0.0/docs/rules/no-lonely-if.md

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-12-22 16:14:28 -08:00
Anders Kaseorg 48f5e5179a eslint: Fix unicorn/prefer-string-slice.
https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/prefer-string-slice.md

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-10-07 16:00:33 -07:00
Priyank Patel b7998d3160 js: Purge people module from window. 2020-09-01 19:55:58 -07:00
Anders Kaseorg 6ec808b8df js: Add "use strict" directive to CommonJS files.
ES and TypeScript modules are strict by default and don’t need this
directive.  ESLint will remind us to add it to new CommonJS files and
remove it from ES and TypeScript modules.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-31 22:09:46 -07:00
Anders Kaseorg 226598edc4 js: Use Handlebars as a module.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-29 11:17:24 -07:00
Anders Kaseorg daf5a78e98 search_suggestion: Convert make_attacher to an ES6 class Attacher.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-24 16:56:28 -07:00
Anders Kaseorg e3b3df328d eslint: Replace sort-imports with import/order.
import/order sorts require() calls as well as import statements.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-24 09:42:56 -07:00
Anders Kaseorg 96dcc0ce6e js: Use ES6 object literal shorthand syntax.
Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:42:22 -07:00
Anders Kaseorg b65d2e063d js: Reformat with Prettier.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg 6924d501bc js: Indent case clauses in switch statements.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg f3726db89a js: Normalize strings to double quotes.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:24 -07:00
Anders Kaseorg a79322bc94 eslint: Enable prefer-arrow-callback.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:50 -07:00
Anders Kaseorg b0253c5a2e eslint: Enable arrow-parens.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:53:39 -07:00
Ryan Rehman 21cdc26193 search: Support multiple search pills creation.
This reverts part of b0d632577f.
The problem was that multiple queries were combined as a single
search pill. And since we create the pills then narrow / search,
we added a comma seperator between them for the typeahead lookups
as required by the logic in `input_pill.js`.

This however introduced a new bug where the search suggestions
were incorrect as the typeahead lookup table wasn't updated, so
every time an item from the type ahead was selected it updated
the input string with an invalid operator.

Thus to resolve the first problem, we follow a simpler approach
by extracting all operators from the search string using our
`Filter.parse` logic and next add the pills, one by one.
2020-06-19 16:18:52 -07:00
Ryan Rehman 69f9c72edc search suggestions: De-duplicate legacy search codepath.
This merges the `exports.get_search_result_legacy` and
`exports.get_search_result` function.

The key differences between the two code paths are as follows:

* We only want to generate suggestions for the queries which
  the user is typing or can edit.
  For the legacy version, suggestions are displayed for the
  entire search string in the searchbox. (`all_operators`)
  For the pills enabled version, suggestions are displayed
  only for the input which hasn't been converted to pills.
  (`query_operators`)
  `all_operators` = `base_query_operators` + " " +  `query_operators`.
  trim is added at the end just to handle the legacy case
  where we pass the `base_query` as ''.

* It is not possible to detect whether the user wants to
  continue typing in the legacy version. However if the
  the searchbox is still focused even after pill creation
  we can assume the user still wants to continue typing.
  To handle this we push an empty term as the `last` operator.
  This is possible since the previous queries have been
  completely entered as evident from it's generated pill.

* When using the legacy version, `search_operators` are
  the same as `all_operators`, as mentioned in point 1.
  In the pills enabled version we perform most of the
  computations from the `query_operators`, but we do
  require all `all_operators`, only for filtering the last
  query's suggestion.

* And there is just one block unique to the legacy search
  system. More details are mentioned in the comments of that
  block.

We also refactor both the search suggestions node tests,
mainly to make them similar and easier to detect differences
when we switch over to the new version.
2020-06-18 01:44:15 -07:00
Ryan Rehman 0e158f2c90 search suggestions: Refactor `get_search_result_legacy` code path.
The only change made here is the renaming of `operators` variable
to `search_operators`.

That is mostly evident from the fact that we do not need to
make any changes to `node_tests/search_suggestion_legacy.js`.

As mentioned in the previous commit, we make this change
to get a minimal diff between the legacy and search pills
enabled version.
2020-06-18 01:27:10 -07:00
Ryan Rehman 8d40a508fb search suggestions: Refactor `get_search_result` code path.
The only changes made here is the renaming of `query_operators`
variable to `search_operators`.

That is mostly evident from the fact that we do not need to
make any changes to `node_tests/search_suggestion.js`.

This will be helpful when we combine this function with it's
legacy function. As most of the logical decisions to generate
the result is based on the `query_operators` variable for the
search pills enabled version and the `operators` variable for
the legacy search version.
2020-06-18 01:27:10 -07:00
Ryan Rehman b40c8bd9cd search suggestions: Refactor `get_default_suggestion`.
This commit actually just deletes the `get_default_suggestion`
function while the `get_default_suggestion_legacy` function's
logic remains the exact same, it is just renamed.

Since the operator can never be undefined as mentioned in the
previous commit, we do not require the check with undefined
and as a result the, `if (suggestion)` condition can be removed.
2020-06-15 20:16:40 -07:00
Ryan Rehman 72816b9408 minor: Refactor get_search_result of search suggestions.
The 3 changes made here are as follows:
* The if block for both the functions is simplified as
  `Filter.parse` will always return an array and also
  [].slice(0, -1) === [] is true.
* The code where `base_operators` is declared is moved
  to just before where it is actually used.
* The `base` variable declaration is changed to match
  the pattern of that present in the non-legacy function.
  Its value remains the same.

This is a prep commit for when we want to merge the
`get_search_result_legacy` and `get_search_result` functions.
2020-06-15 20:16:40 -07:00
Ryan Rehman 9c5d9c961c search: Parse search string correctly.
This is the exact same bug as observed in
02ab48a61e.

The bug is in the way we invoke `Filter.parse`.
`Filter.parse` returns a list of operators which
can contain only one 'search' term at max.
All strings with the 'search' operator present
in the query are combined to form this 'search'
term.

However on concatenating two filters we may get
two terms containing the 'search' operator. This
will lead to the search suggestions getting
generated based on only the last 'search' operator
term instead of all the terms having the 'search'
operator.

This is evident from the test change as suggestions
should be based on "s stream:of" but instead they
were based on just the latest query.
2020-06-15 20:16:40 -07:00
Ryan Rehman b0d632577f search pills: Update multiple pills creation event behaviour.
If typeahead is used, this adds comma separated search queries
so that multiple search pills don't get combined as one and the
search behaviour remains same as search_pills_enabled = False case.

If typeahead is not used, this prevent the typing of a single comma
after the pill gets created.
2020-06-05 17:16:20 -07:00
Steve Howell e040721090 refactor: Extract huddle_data.js.
This makes it so that search_suggestion.js
does not depend on activity.js.

That dependency hasn't really been "elegant"
for quite some time, but it will become particularly
unnecessary when we go to remove the "Group PMs"
section from the right sidebar.

This commit introduces a temporary wart
where we have these two functions with the
same name in a sort of unnecessarily
complicated code stack:

    activity.process_loaded_messages
    huddle_data.process_loaded_messages

But we will eliminate the former function
very soon, and our message-related codepaths
will just call the `huddle_data` version
directly.

TESTING NOTES:

Now that `huddle_data` is a tiny leaf
module, it's super easy to just use the
real implementation of what was formerly
called `activity.get_huddles()` (and is
now in `huddle_data`).

When I first wrote this commit, introducing
the real implementation of `get_huddles` exposed
some bugs that I fixed in the immediately
prior commits to this.

When the tests were originally written,
I believe `activity.js` had some annoying
`jQuery` dependencies that made it hard
to unit test against.  We've slimmed it over
time to be mostly just a "controller" module.
But even in its current state it would have
been a bit of a bloated dependency.

The other friction for using the actual
version of `get_huddles` was setting up
the message data, but that's pretty minor.
2020-05-26 21:26:11 -07:00
Steve Howell 4803a12416 search: Extract people.huddle_concat().
This is a pure code extraction.  The current
code is buggy with respect to user_ids with
different lengths of digits, i.e. it does
a naive lexical sort instead of a numerical
sort.  We'll fix that in the next commit.
2020-05-26 21:26:11 -07:00
Hashir Sarwar ee0d4541b4 topic_data: Rename `topic_data` module to `stream_topic_history`.
`stream_topic_history` is a more appropriate name as this
module will contain information about last message of a
stream in upcoming commits. Function and variable names
are changed accordingly like:

* topic_history() -> per_stream_history()
* get_recent_names() -> get_recent_topic_names()
* name -> topic_name
2020-04-16 20:11:04 -07:00
Steve Howell 979dcfe85b refactor: Extract settings_data.py.
This extracts a new module with three
functions, which we will test with 100%
line coverage:

    - show_email
    - email_for_user_settings
    - get_time_preferences

The first two break several dependencies
in the codebase on `settings_org.js`.  The
`get_time_preferences` breaks an annoying
dependency on `page_params` within people.

The module is pretty cohesive, in terms that
all three functions are just light wrappers
around `page_params` and/or `settings_config`.

Now all the modules that want to call show_email()
only have to require `settings_data`, instead of
having a dependency on the much heavier
`settings_org.js` module.

I also make some of the unit tests here be more
full-stack, where instead of stubbing show_email,
I basically just toggle `page_params.is_admin`.
2020-02-28 17:11:24 -08:00
Anders Kaseorg c9dbd13189 js: Convert _.has to Object.prototype.hasOwnProperty.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-25 14:09:39 -08:00
Anders Kaseorg bf0a3d9d14 search_suggestion: Convert prev from object to Set.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-12 10:39:01 -08:00
Anders Kaseorg e848bc2a21 search_suggestion: Convert huddle_dict from object to Map.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-12 10:39:01 -08:00
Anders Kaseorg 7c6ec51e5d search_suggestions: Convert lookup_table from object to Map.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-12 10:39:01 -08:00
Anders Kaseorg 612b237cec js: Convert remaining _.each(a, …) to a.forEach(…).
The _.each calls with an inline function expression have already been
converted to for…of loops.  We could do that here, but using .forEach
when we’re just reusing an existing function seems like a good
guideline.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 70ff164f89 js: Convert _.any(a, …), _.some(a, …) to a.some(…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 2285ee922e js: Convert _.contains(a, …) to a.includes(…).
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 4948240619 js: Convert _.filter(a, …) to a.filter(…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg ac7b09d57e js: Convert _.map(a, …) to a.map(…).
And convert the corresponding function expressions to arrow style
while we’re here.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;

  recast.visit(ast, {
    visitCallExpression(path) {
      const { callee, arguments: args } = path.node;
      if (
        n.MemberExpression.check(callee) &&
        !callee.computed &&
        n.Identifier.check(callee.object) &&
        callee.object.name === "_" &&
        n.Identifier.check(callee.property) &&
        callee.property.name === "map" &&
        args.length === 2 &&
        checkExpression(args[0]) &&
        checkExpression(args[1])
      ) {
        const [arr, fn] = args;
        path.replace(
          b.callExpression(b.memberExpression(arr, b.identifier("map")), [
            n.FunctionExpression.check(fn) ||
            n.ArrowFunctionExpression.check(fn)
              ? b.arrowFunctionExpression(
                  fn.params,
                  n.BlockStatement.check(fn.body) &&
                    fn.body.body.length === 1 &&
                    n.ReturnStatement.check(fn.body.body[0])
                    ? fn.body.body[0].argument || b.identifier("undefined")
                    : fn.body
                )
              : fn,
          ])
        );
        changed = true;
      }
      this.traverse(path);
    },
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 719546641f js: Convert a.indexOf(…) !== -1 to a.includes(…).
Babel polyfills this for us for Internet Explorer.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;

  recast.visit(ast, {
    visitBinaryExpression(path) {
      const { operator, left, right } = path.node;
      if (
        n.CallExpression.check(left) &&
        n.MemberExpression.check(left.callee) &&
        !left.callee.computed &&
        n.Identifier.check(left.callee.property) &&
        left.callee.property.name === "indexOf" &&
        left.arguments.length === 1 &&
        checkExpression(left.arguments[0]) &&
        ((["===", "!==", "==", "!=", ">", "<="].includes(operator) &&
          n.UnaryExpression.check(right) &&
          right.operator == "-" &&
          n.Literal.check(right.argument) &&
          right.argument.value === 1) ||
          ([">=", "<"].includes(operator) &&
            n.Literal.check(right) &&
            right.value === 0))
      ) {
        const test = b.callExpression(
          b.memberExpression(left.callee.object, b.identifier("includes")),
          [left.arguments[0]]
        );
        path.replace(
          ["!==", "!=", ">", ">="].includes(operator)
            ? test
            : b.unaryExpression("!", test)
        );
        changed = true;
      }
      this.traverse(path);
    },
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 02511bff1c js: Automatically convert _.each to for…of.
This commit was automatically generated by the following script,
followed by lint --fix and a few small manual lint-related cleanups.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import { Context } from "ast-types/lib/path-visitor";
import K from "ast-types/gen/kinds";
import { NodePath } from "ast-types/lib/node-path";
import assert from "assert";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);
const checkStatement = (node: n.Node): node is K.StatementKind =>
  n.Statement.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;
  let inLoop = false;
  let replaceReturn = false;

  const visitLoop = (...args: string[]) =>
    function(this: Context, path: NodePath) {
      for (const arg of args) {
        this.visit(path.get(arg));
      }
      const old = { inLoop };
      inLoop = true;
      this.visit(path.get("body"));
      inLoop = old.inLoop;
      return false;
    };

  recast.visit(ast, {
    visitDoWhileStatement: visitLoop("test"),

    visitExpressionStatement(path) {
      const { expression, comments } = path.node;
      let valueOnly;
      if (
        n.CallExpression.check(expression) &&
        n.MemberExpression.check(expression.callee) &&
        !expression.callee.computed &&
        n.Identifier.check(expression.callee.object) &&
        expression.callee.object.name === "_" &&
        n.Identifier.check(expression.callee.property) &&
        ["each", "forEach"].includes(expression.callee.property.name) &&
        [2, 3].includes(expression.arguments.length) &&
        checkExpression(expression.arguments[0]) &&
        (n.FunctionExpression.check(expression.arguments[1]) ||
          n.ArrowFunctionExpression.check(expression.arguments[1])) &&
        [1, 2].includes(expression.arguments[1].params.length) &&
        n.Identifier.check(expression.arguments[1].params[0]) &&
        ((valueOnly = expression.arguments[1].params[1] === undefined) ||
          n.Identifier.check(expression.arguments[1].params[1])) &&
        (expression.arguments[2] === undefined ||
          n.ThisExpression.check(expression.arguments[2]))
      ) {
        const old = { inLoop, replaceReturn };
        inLoop = false;
        replaceReturn = true;
        this.visit(
          path
            .get("expression")
            .get("arguments")
            .get(1)
            .get("body")
        );
        inLoop = old.inLoop;
        replaceReturn = old.replaceReturn;

        const [right, { body, params }] = expression.arguments;
        const loop = b.forOfStatement(
          b.variableDeclaration("let", [
            b.variableDeclarator(
              valueOnly ? params[0] : b.arrayPattern([params[1], params[0]])
            ),
          ]),
          valueOnly
            ? right
            : b.callExpression(
                b.memberExpression(right, b.identifier("entries")),
                []
              ),
          checkStatement(body) ? body : b.expressionStatement(body)
        );
        loop.comments = comments;
        path.replace(loop);
        changed = true;
      }
      this.traverse(path);
    },

    visitForStatement: visitLoop("init", "test", "update"),

    visitForInStatement: visitLoop("left", "right"),

    visitForOfStatement: visitLoop("left", "right"),

    visitFunction(path) {
      this.visit(path.get("params"));
      const old = { replaceReturn };
      replaceReturn = false;
      this.visit(path.get("body"));
      replaceReturn = old.replaceReturn;
      return false;
    },

    visitReturnStatement(path) {
      if (replaceReturn) {
        assert(!inLoop); // could use labeled continue if this ever fires
        const { argument, comments } = path.node;
        if (argument === null) {
          const s = b.continueStatement();
          s.comments = comments;
          path.replace(s);
        } else {
          const s = b.expressionStatement(argument);
          s.comments = comments;
          path.replace(s, b.continueStatement());
        }
        return false;
      }
      this.traverse(path);
    },

    visitWhileStatement: visitLoop("test"),
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-07 14:09:47 -08:00
Steve Howell d0453dc8f4 performance: Use startsWith in many places.
Using startsWith is faster than indexOf, especially for long strings
and short prefixes.  It's also a lot more readable.  The only reason
we weren't using it was when a lot of the code was originally written,
it wasn't available.
2020-01-28 12:47:37 -08:00
Steve Howell 4a03f91daa search: Retrofit recent changes to pills code.
This change makes these two functions more alike:

    - get_search_result
    - get_search_result_legacy

To test the UI modify zerver/views/home.py by
replacing `settings.SEARCH_PILLS_ENABLED` with
`True`.  I only did a quick sanity check, since
any bugs with the new system are more likely due
to bitrot than any changes I have made here.

The history is this:

    Tim cloned the code (before the smaller
    helpers were extracted):

        db4f6e278f

    In 8b153f6452
    Shubham removed get_operator_subset_suggestions but
    accidentally left a `concat` statement in that got
    misapplied to the previous suggestions:

    -    suggestions = get_operator_subset_suggestions(operators);
         result = result.concat(suggestions);

    The error there was carried over in some recent changes,
    but this commit fixes that strangeness.

    In 73e4f3b3fa
    Shubham made this change, which makes sense only for
    pills, and this code remains intact.

        -    if (operators.length > 0) {
        -        last = operators.slice(-1)[0];
        +    if (query_operators.length > 0) {
        +        last = query_operators.slice(-1)[0];
        +    } else {
        +        // If query_operators = [] then last will remain
        +        // {operator: '', operand: '', negated: false}; from above.
        +        // `last` has not yet been added to operators/query_operators.
        +        // The code below adds last to operators/query_operators
        +        operators.push(last);
        +        query_operators.push(last);
             }

    Mohit made a couple changes to both old and new.

    Anders made a couple non-substantive changes related to
    the ES6 migration.

    Steve (me) made several structural changes to the code.  For
    some of them I only changed the legacy code, not the pills
    code.  I didn't fix Shubham's mistake until this change.

Now the two functions should look similar except in the places
where they are intentionally different.  I also added a comment
explaining the get_operator_subset_suggestions difference.

Fixes #13609
2020-01-08 14:02:34 -08:00
Steve Howell a5bf6984bc search: Extract make_people_getter().
This helper lets us reduce the number of people
queries down from 4 to either 0 or 1.
2020-01-04 12:55:40 -08:00
Steve Howell d87c5d7b1f search: Use people.filter_all_persons() in search.
This should avoid some memory allocations.

We also use build_person_matcher to avoid
repeating the same logic over and over
again to process the query into termlets.

We also remove people.get_all_persons() and
people.person_matches_query().
2020-01-04 12:53:32 -08:00
Steve Howell ab34ee0800 search performance: Stop at max_items.
Once we have max_items results, stop trying
to get more items.

This should really help large realms when
you do a search on streams that turns up
more than N streams (where N is about 12).
We won't even bother to find people.
2019-12-28 11:09:28 -08:00
Steve Howell 8406d34145 search: Extract make_attacher.
This class gives us more control over attaching
suggestions to our eventual result.  The main
thing we do now is remove duplicates as they're
encountered.

This will make sense in the follow up commit,
where we can short circuit actions as soon as
we get enough results.
2019-12-28 11:09:26 -08:00
Steve Howell 97293aef96 search: Simplify legacy search code.
We now have a list of filterers that we walk through.
2019-12-28 11:09:25 -08:00
Steve Howell 09326cb467 refactor: Extract finalize_results.
This has a few benefits:

    - we remove some duplicate code
    - we can see finalize_results in profiles

It turns out finalize_results is expensive
for some searches. If the search itself doesn't
do a ton of work but returns a lot of results,
we see it in finalize_results.  It brings to
attention that we should be truncating items
earlier instead of doing lots of unnecessary
work.
2019-12-28 11:09:25 -08:00
Steve Howell 4141abc171 search: Slightly speed up stream highlighting.
This isn't a huge speedup, but it's an easy
code change.

We remove the two-liner highlight_with_escaping,
which was only called in one place, and when
we inline it into the caller, we can pull the
first line, which builds the regex, out of the
loop.
2019-12-28 11:09:23 -08:00
Steve Howell abdd4b54f4 performance: Speed up search bar highlighting.
When we're highlighting all the people that show
up in a search from the search bar, we need
to fairly expensively build a regex from the
query:

    query = query.toLowerCase();
    query = query.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&');
    const regex = new RegExp('(^' + query + ')', 'ig');

Even though the final regex is presumably cached, we
still needed to do that `query.replace` for every person.
Even for relatively small numbers of persons, this would
show up in profiles as expensive.

Now we just build the query once by using a pattern
where you call a function outside the loop to build
an inner function that's used in the loop that closes
on the `query` above.  The diff probably shows this
better than I explained it here.
2019-12-28 10:57:53 -08:00
Anders Kaseorg 28f3dfa284 js: Automatically convert var to let and const in most files.
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`.  It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-11-03 12:42:39 -08:00
Anders Kaseorg 4d37dfcf85 js: Convert vars declared separately and assigned once to const.
Because of the separate declarations, ESLint would convert them to
`let` and then trigger the `prefer-const` error.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-10-28 15:02:43 -07:00
Anders Kaseorg d17b577d0c js: Purge useless IIFEs.
With webpack, variables declared in each file are already file-local
(Global variables need to be explicitly exported), so these IIFEs are
no longer needed.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-10-25 13:51:21 -07:00
Tim Abbott dade0ad6d5 search: Improve explanation of all public streams search. 2019-10-09 15:16:56 -07:00