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tools: Add check-messages-en, to find dangling messages in messages_e…
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…n.json

As discussed on CZO:
  https://chat.zulip.org/#narrow/stream/243-mobile-team/topic/Strings.20in.20messages_en.2Ejson.20but.20not.20in.20the.20app/near/1425641

Run with:
  tools/check-messages-en

This gives just one result, which we'll address next.

We add flow-parser at <0.159.0. We'd like a later version --
probably ideal would be to sync it with flow-bin, which is ^0.170.0
right now -- but facebook/flow@5de4ea57e, released in v0.159.0, was
a change that isn't yet handled by any version of ast-types [1]. A
fix for ast-types is open as the issue benjamn/ast-types#728 and PR
benjamn/ast-types#727.

[1] I get this error output:

/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/types.js:669
            throw new Error("did not recognize object of type " +
            ^

Error: did not recognize object of type "PropertyDefinition"
    at Object.getFieldNames (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/types.js:669:19)
    at visitChildren (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:185:36)
    at Visitor.PVp.visitWithoutReset (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:167:20)
    at NodePath.each (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path.js:88:26)
    at visitChildren (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:179:18)
    at Visitor.PVp.visitWithoutReset (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:167:20)
    at visitChildren (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:204:25)
    at Visitor.PVp.visitWithoutReset (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:167:20)
    at visitChildren (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:204:25)
    at Visitor.PVp.visitWithoutReset (/Users/chrisbobbe/dev/zulip-mobile/node_modules/ast-types/lib/path-visitor.js:167:20)
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@chrisbobbe
chrisbobbe committed Dec 30, 2022
1 parent 77b7e9c commit a47d7d5
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3 changes: 3 additions & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,7 @@
"@rollup/plugin-node-resolve": "^13.0.4",
"@types/react-native": "~0.67.6",
"@vusion/webfonts-generator": "^0.8.0",
"ast-types": "^0.16.1",
"babel-plugin-transform-flow-enums": "^0.0.2",
"core-js": "^3.1.4",
"deep-freeze": "^0.0.1",
Expand All @@ -107,6 +108,7 @@
"eslint-plugin-react-hooks": "^4.5.0",
"flow-bin": "^0.170.0",
"flow-coverage-report": "^0.8.0",
"flow-parser": "<0.159.0",
"flow-typed": "^3.3.1",
"hermes-eslint": "^0.9.0",
"immutable-devtools": "^0.1.5",
Expand All @@ -124,6 +126,7 @@
"prettier-eslint-cli": "^6.0.1",
"react-native-cli": "^2.0.1",
"react-test-renderer": "17.0.2",
"recast": "^0.22.0",
"redux-mock-store": "^1.5.1",
"rollup": "^2.26.5",
"sqlite3": "^5.0.2",
Expand Down
181 changes: 181 additions & 0 deletions tools/check-messages-en
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Original file line number Diff line number Diff line change
@@ -0,0 +1,181 @@
#!/usr/bin/env node

// TODO: Type-check this file

// Sadly our auto-format doesn't seem to run eslint on this file; give in to
// Prettier here.
// TODO: debug
/* eslint-disable operator-linebreak */

const fs = require('fs');
const path = require('path');
const { namedTypes: n, visit } = require('ast-types');
const flowParser = require('flow-parser');
const { parse } = require('recast');

const messages_en = require('../static/translations/messages_en.json');

/**
* Make a list of files that might contain UI strings, by recursing in src/.
*/
function getPossibleUiStringFilePaths() {
const result = [];
const kSrcDirName = 'src/';
function walk(dir, _dirName = '') {
let dirent;
// eslint-disable-next-line no-cond-assign
while ((dirent = dir.readSync())) {
// To reduce false negatives, `continue` when nothing in `dirent` can
// cause UI strings to appear in the app.

if (dirent.isFile()) {
if (!dirent.name.endsWith('.js')) {
// Non-JS code, and Flow type definitions in .js.flow files.
continue;
}

result.push(path.join(kSrcDirName, _dirName, dirent.name));
} else if (dirent.isDirectory()) {
const subdirName = path.join(_dirName, dirent.name);

// e.g., …/__tests__ and …/__flow-tests__
if (subdirName.endsWith('tests__')) {
// Test code.
continue;
}

walk(fs.opendirSync(path.join(kSrcDirName, subdirName)), subdirName);
} else {
// Something we don't expect to find under src/, probably containing
// no UI strings. (symlinks? fifos, sockets, devices??)
continue;
}
}
}
walk(fs.opendirSync(kSrcDirName));
return result;
}

const parseOptions = {
parser: {
parse(src) {
return flowParser.parse(src, {
// Comments can't cause UI strings to appear in the app; ignore them.
all_comments: false,
comments: false,

// We use Flow enums; the parser shouldn't crash on them.
enums: true,

// Set `tokens: true` just to work around a mysterious error.
//
// From the doc for this option:
//
// > include a list of all parsed tokens in a top-level tokens
// > property
//
// We don't actually want this list of tokens. String literals do
// get represented in the list, but as tokens, i.e., meaningful
// chunks of the literal source code. They come with surrounding
// quotes, escape syntax, etc:
//
// 'doesn\'t'
// "doesn't"
//
// What we really want is the *value* of a string literal:
//
// doesn't
//
// and we get that from the AST.
//
// Anyway, we set `true` for this because otherwise I've been seeing
// `parse` throw an error:
//
// Error: Line 72: Invalid regular expression: missing /
//
// TODO: Debug and/or file an issue upstream.
tokens: true,
});
},
},
};

/**
* Look at all given files and collect all strings that might be UI strings.
*
* The result will include non-UI strings because we can't realistically
* filter them all out. That means, when the caller checks messages_en
* against these strings, it could get false negatives: perhaps messages_en
* has a string 'message-empty' (why would it, though), and that string
* won't be flagged because it appears as an enum value in ComposeBox.
*
* To reduce these false negatives, we filter out low-hanging fruit, like
* the string 'foo' in `import Foo from 'foo'`.
*/
function getPossibleUiStrings(possibleUiStringFilePaths) {
const result = new Set();
possibleUiStringFilePaths.forEach(filePath => {
const source = fs.readFileSync(filePath).toString();
const ast = parse(source, parseOptions);

visit(ast, {
// Find nodes with type "Literal" in the AST.
/* eslint-disable no-shadow */
visitLiteral(path) {
const { value } = path.value;

if (
// (Non-string literals include numbers, booleans, etc.)
typeof value === 'string' &&
// This string isn't like 'react' in `import React from 'react'`.
!n.ImportDeclaration.check(path.parent.value)
) {
result.add(value);
}

// A literal is always a leaf, right? No need to call this.traverse.
return false;
},

// Find nodes with type "TemplateLiteral" in the AST. We sometimes use
// template literals in UI strings for readability.
/* eslint-disable no-shadow */
visitTemplateLiteral(path) {
if (
// Translatable UI strings are unlikely to contain
// sub-expressions.
//
// Also, if a template literal has nontrivial sub-expressions, we
// can't reasonably interpret them here anyway.
path.value.quasis.length === 1 &&
path.value.expressions.length === 0
) {
result.add(path.value.quasis[0].value.cooked);
}

return this.traverse(path);
},
});
});
return result;
}

function main() {
const possibleUiStrings = getPossibleUiStrings(getPossibleUiStringFilePaths());

// Check each key ("message ID" in formatjs's lingo) against
// possibleUiStrings, and make a list of any that aren't found.
const danglingMessageIds = Object.keys(messages_en).filter(
messageId => !possibleUiStrings.has(messageId),
);

if (danglingMessageIds.length > 0) {
console.error(
"Found message IDs in static/translations/messages_en.json that don't seem to be used in the app:",
);
console.error(danglingMessageIds);
process.exit(1);
}
}

main();
79 changes: 75 additions & 4 deletions yarn.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -3199,6 +3199,16 @@ asap@~2.0.3, asap@~2.0.6:
resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
integrity sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==

assert@^2.0.0:
version "2.0.0"
resolved "https://registry.yarnpkg.com/assert/-/assert-2.0.0.tgz#95fc1c616d48713510680f2eaf2d10dd22e02d32"
integrity sha512-se5Cd+js9dXJnu6Ag2JFc00t+HmHOen+8Q+L7O9zI0PqQXr20uk2J0XQqMxZEeo5U50o8Nvmmx7dZrl+Ufr35A==
dependencies:
es6-object-assign "^1.1.0"
is-nan "^1.2.1"
object-is "^1.0.1"
util "^0.12.0"

assign-symbols@^1.0.0:
version "1.0.0"
resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
Expand All @@ -3216,6 +3226,20 @@ [email protected]:
dependencies:
tslib "^2.0.1"

[email protected]:
version "0.15.2"
resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.15.2.tgz#39ae4809393c4b16df751ee563411423e85fb49d"
integrity sha512-c27loCv9QkZinsa5ProX751khO9DJl/AcB5c2KNtA6NRvHKS0PgLfcftz72KVq504vB0Gku5s2kUZzDBvQWvHg==
dependencies:
tslib "^2.0.1"

ast-types@^0.16.1:
version "0.16.1"
resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.16.1.tgz#7a9da1617c9081bc121faafe91711b4c8bb81da2"
integrity sha512-6t10qk83GOG8p0vKmaCr8eiilZwO171AvbROMtvvNiwrTly62t+7XkA8RdIIVbpMhCASAsxgAzdRSwh6nw/5Dg==
dependencies:
tslib "^2.0.1"

"ast-types@npm:@gregprice/ast-types@^0.15.3-0.tsflower.5":
version "0.15.3-0.tsflower.5"
resolved "https://registry.yarnpkg.com/@gregprice/ast-types/-/ast-types-0.15.3-0.tsflower.5.tgz#59bfaf5b776dc8bf3e9de7d94d5a9546f3a1b6df"
Expand Down Expand Up @@ -4934,6 +4958,11 @@ es-to-primitive@^1.2.1:
is-date-object "^1.0.1"
is-symbol "^1.0.2"

es6-object-assign@^1.1.0:
version "1.1.0"
resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
integrity sha512-MEl9uirslVwqQU369iHNWZXsI8yaZYGg/D65aOgZkeyFJwHYSxilf7rQzXKI7DdDuBPrBXbfk3sl9hJhmd5AUw==

escalade@^3.1.1:
version "3.1.1"
resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
Expand Down Expand Up @@ -5823,6 +5852,11 @@ flow-parser@0.*:
resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.192.0.tgz#e2aa03e0c6a844c4d6ccdb4af2bc83cc589d9c8c"
integrity sha512-FLyei0ikf4ab9xlg+05WNmdpOODiH9XVBuw7iI9OZyjIo+cX2L2OUPTovjbWLYLlI41oGTcprbKdB/f9XwBnKw==

flow-parser@<0.159.0:
version "0.158.0"
resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.158.0.tgz#d845f167c722babe880110fc3681c44f21823399"
integrity sha512-0hMsPkBTRrkII/0YiG9ehOxFXy4gOWdk8RSRze5WbfeKAQpL5kC2K4BmumyTfU9o5gr7/llgElF3UpSSrjzQAA==

flow-parser@^0.121.0:
version "0.121.0"
resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.121.0.tgz#9f9898eaec91a9f7c323e9e992d81ab5c58e618f"
Expand Down Expand Up @@ -6741,7 +6775,7 @@ is-accessor-descriptor@^1.0.0:
dependencies:
kind-of "^6.0.0"

is-arguments@^1.1.0, is-arguments@^1.1.1:
is-arguments@^1.0.4, is-arguments@^1.1.0, is-arguments@^1.1.1:
version "1.1.1"
resolved "https://registry.yarnpkg.com/is-arguments/-/is-arguments-1.1.1.tgz#15b3f88fda01f2a97fec84ca761a560f123efa9b"
integrity sha512-8Q7EARjzEnKpt/PCD7e1cgUS0a6X8u5tdSiMqXhojOdoV9TsMsiO+9VLC5vAmO8N7/GmXn7yjR8qnA6bVAEzfA==
Expand Down Expand Up @@ -6898,6 +6932,13 @@ is-generator-fn@^2.0.0:
resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-2.1.0.tgz#7d140adc389aaf3011a8f2a2a4cfa6faadffb118"
integrity sha512-cTIB4yPYL/Grw0EaSzASzg6bBy9gqCofvWN8okThAYIxKJZC+udlRAmGbM0XLeniEJSs8uEgHPGuHSe1XsOLSQ==

is-generator-function@^1.0.7:
version "1.0.10"
resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.10.tgz#f1558baf1ac17e0deea7c0415c438351ff2b3c72"
integrity sha512-jsEjy9l3yiXEQ+PsXdmBwEPcOxaXWLspKdplFUVI9vq1iZgIekeC0L167qeu86czQaxed3q/Uzuw0swL0irL8A==
dependencies:
has-tostringtag "^1.0.0"

is-glob@^2.0.0:
version "2.0.1"
resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
Expand Down Expand Up @@ -6939,6 +6980,14 @@ is-module@^1.0.0:
resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
integrity sha512-51ypPSPCoTEIN9dy5Oy+h4pShgJmPCygKfyRCISBI+JoWT/2oJvK8QPxmwv7b/p239jXrm9M1mlQbyKJ5A152g==

is-nan@^1.2.1:
version "1.3.2"
resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.3.2.tgz#043a54adea31748b55b6cd4e09aadafa69bd9e1d"
integrity sha512-E+zBKpQ2t6MEo1VsonYmluk9NxGrbzpeeLC2xIViuO2EjU2xsXsBPwTr3Ykv9l08UYEVEdWeRZNouaZqF6RN0w==
dependencies:
call-bind "^1.0.0"
define-properties "^1.1.3"

is-negative-zero@^2.0.2:
version "2.0.2"
resolved "https://registry.yarnpkg.com/is-negative-zero/-/is-negative-zero-2.0.2.tgz#7bf6f03a28003b8b3965de3ac26f664d765f3150"
Expand Down Expand Up @@ -7049,7 +7098,7 @@ is-symbol@^1.0.2, is-symbol@^1.0.3:
dependencies:
has-symbols "^1.0.2"

is-typed-array@^1.1.10:
is-typed-array@^1.1.10, is-typed-array@^1.1.3:
version "1.1.10"
resolved "https://registry.yarnpkg.com/is-typed-array/-/is-typed-array-1.1.10.tgz#36a5b5cb4189b575d1a3e4b08536bfb485801e3f"
integrity sha512-PJqgEHiWZvMpaFZ3uTc8kHPM4+4ADTlDniuQL7cU/UDA0Ql7F70yGfHph3cLNe+c9toaigv+DFzTJKhc2CtO6A==
Expand Down Expand Up @@ -9379,7 +9428,7 @@ object-inspect@^1.12.2, object-inspect@^1.9.0:
resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.12.2.tgz#c0641f26394532f28ab8d796ab954e43c009a8ea"
integrity sha512-z+cPxW0QGUp0mcqcsgQyLVRDoXFQbXOwBaqyF7VIgI4TWNQsDHrBpUQslRmIfAoYWdYzs6UlKJtB2XJpTaNSpQ==

object-is@^1.1.5:
object-is@^1.0.1, object-is@^1.1.5:
version "1.1.5"
resolved "https://registry.yarnpkg.com/object-is/-/object-is-1.1.5.tgz#b9deeaa5fc7f1846a0faecdceec138e5778f53ac"
integrity sha512-3cyDsyHgtmi7I7DfSSI2LDp6SK2lwvtbg0p0R1e0RvTqF5ceGx+K2dfSjm1bKDMVCFEDAQvy+o8c6a7VujOddw==
Expand Down Expand Up @@ -10453,6 +10502,17 @@ recast@^0.20.4:
source-map "~0.6.1"
tslib "^2.0.1"

recast@^0.22.0:
version "0.22.0"
resolved "https://registry.yarnpkg.com/recast/-/recast-0.22.0.tgz#1dd3bf1b86e5eb810b044221a1a734234ed3e9c0"
integrity sha512-5AAx+mujtXijsEavc5lWXBPQqrM4+Dl5qNH96N2aNeuJFUzpiiToKPsxQD/zAIJHspz7zz0maX0PCtCTFVlixQ==
dependencies:
assert "^2.0.0"
ast-types "0.15.2"
esprima "~4.0.0"
source-map "~0.6.1"
tslib "^2.0.1"

"recast@npm:@gregprice/recast@^0.21.2-0.tsflower.8":
version "0.21.2-0.tsflower.8"
resolved "https://registry.yarnpkg.com/@gregprice/recast/-/recast-0.21.2-0.tsflower.8.tgz#576b7329a3cb6fcd1e406ebded7daf3cd5d9f573"
Expand Down Expand Up @@ -12230,6 +12290,17 @@ util.promisify@~1.0.0:
has-symbols "^1.0.1"
object.getownpropertydescriptors "^2.1.0"

util@^0.12.0:
version "0.12.5"
resolved "https://registry.yarnpkg.com/util/-/util-0.12.5.tgz#5f17a6059b73db61a875668781a1c2b136bd6fbc"
integrity sha512-kZf/K6hEIrWHI6XqOFUiiMa+79wE/D8Q+NCNAWclkyg3b4d2k7s0QGepNjiABc+aR3N1PAyHL7p6UcLY6LmrnA==
dependencies:
inherits "^2.0.3"
is-arguments "^1.0.4"
is-generator-function "^1.0.7"
is-typed-array "^1.1.3"
which-typed-array "^1.1.2"

[email protected]:
version "0.2.1"
resolved "https://registry.yarnpkg.com/utile/-/utile-0.2.1.tgz#930c88e99098d6220834c356cbd9a770522d90d7"
Expand Down Expand Up @@ -12435,7 +12506,7 @@ which-module@^2.0.0:
resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
integrity sha512-B+enWhmw6cjfVC7kS8Pj9pCrKSc5txArRyaYGe088shv/FGWH+0Rjx/xPgtsWfsUtS27FkP697E4DDhgrgoc0Q==

which-typed-array@^1.1.8:
which-typed-array@^1.1.2, which-typed-array@^1.1.8:
version "1.1.9"
resolved "https://registry.yarnpkg.com/which-typed-array/-/which-typed-array-1.1.9.tgz#307cf898025848cf995e795e8423c7f337efbde6"
integrity sha512-w9c4xkx6mPidwp7180ckYWfMmvxpjlZuIudNtDf4N/tTAUB8VJbX25qZoAsrtGuYNnGw3pa0AXgbGKRB8/EceA==
Expand Down

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