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13 Commits

Author SHA1 Message Date
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 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 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 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
Anders Kaseorg 23cd064c86 webpack: Elide node_modules when importing JS modules. 
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
 2019-06-26 16:49:32 -07:00
Shubham Dhama dcb6254a4e eslint: Enable `no-extra-parens` rule. 
Following sub-configuration is disabled:
                "nestedBinaryExpressions": false,
 2018-06-11 07:51:24 -04:00
Tim Abbott ed299feb00 lint: Check eslint indentation for casper tests. 
Now we just limit this rule for the node tests themselves.
 2018-05-06 19:35:18 -07:00
Joshua Pan ed9eb3bdb5 tests: Make test-js-with-node handling smarter. 
Added support for passing a filename without `.js` suffix.
This then fixed the issue of no complaints for invalid test
files. Now, throws an error for invalid test files.

Fixes #8579.
 2018-03-26 06:35:58 -04:00
Tim Abbott f037979fe0 zjsunit: Don't run tests on editor backup files. 2017-03-01 22:43:19 -08:00
Rafid Aslam 84e802422e deps: Upgrade and move `underscore.js` from `static/third` to `npm` 
- Remove `underscore.js` from `static/third` and fetch it from `npm`.
- Upgrade `underscore.js` to 1.8.3.
- Bump up the `PROVISION_VERSION` to 4.2.

Part of #1709
 2017-01-19 17:07:45 -08:00
Sahil Dua 058587da77 Remove extra new lines at the ends of Zulip authoried files. 
Fixes #1627.

[tweaked by tabbott to avoid patching third-party modules, for now]
 2016-09-26 21:05:24 -07:00
Tim Abbott c454b180e0 zjsunit: Fix running coverage. 
Previously, we would end up treating the command-line arguments to
"instanbul cover" as filenames.
 2016-08-25 19:51:50 -07:00
Steve Howell 2e254547b2 Extracted zjsunit/finder.js 
This introduces a very minor different in behavior if you specify
an invalid filename as a command line argument.  We now show
warnings for those *before* running the rest of the tests.
 2016-07-30 14:54:30 -07:00