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259 lines (230 loc) · 7.79 KB
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
const gulp = require('gulp');
const filter = require('gulp-filter');
const es = require('event-stream');
const tsfmt = require('typescript-formatter');
const tslint = require('tslint');
const relative = require('relative');
const ts = require('gulp-typescript');
/**
* Hygiene works by creating cascading subsets of all our files and
* passing them through a sequence of checks. Here are the current subsets,
* named according to the checks performed on them. Each subset contains
* the following one, as described in mathematical notation:
*
* all ⊃ eol ⊇ indentation ⊃ copyright ⊃ typescript
*/
const all = [
'src/**/*',
'src/client/**/*',
];
const eolFilter = [
'**',
'!.editorconfig',
'!.eslintrc',
'!.gitignore',
'!.gitmodules',
'!.jshintignore',
'!.jshintrc',
'!.npmrc',
'!.vscodeignore',
'!LICENSE',
'!webpack.config.js',
'!**/node_modules/**',
'!**/*.{svg,exe,png,bmp,scpt,bat,cmd,cur,ttf,woff,eot,txt,md,json,yml}',
'!out/**/*',
'!images/**/*',
'!docs/**/*',
'!.vscode/**/*',
'!pythonFiles/**/*',
'!resources/**/*',
'!snippets/**/*',
'!syntaxes/**/*',
'!**/typings/**/*',
];
const indentationFilter = [
'src/**/*.ts',
'!**/typings/**/*',
];
const tslintFilter = [
'src/**/*.ts',
'test/**/*.ts',
'!webpack.config.js',
'!**/node_modules/**',
'!out/**/*',
'!images/**/*',
'!docs/**/*',
'!.vscode/**/*',
'!pythonFiles/**/*',
'!resources/**/*',
'!snippets/**/*',
'!syntaxes/**/*',
'!**/typings/**/*',
];
function reportFailures(failures) {
failures.forEach(failure => {
const name = failure.name || failure.fileName;
const position = failure.startPosition;
const line = position.lineAndCharacter ? position.lineAndCharacter.line : position.line;
const character = position.lineAndCharacter ? position.lineAndCharacter.character : position.character;
// Output in format similar to tslint for the linter to pickup
console.error(`ERROR: (${failure.ruleName}) ${relative(__dirname, name)}[${line + 1}, ${character + 1}]: ${failure.failure}`);
});
}
const hygiene = exports.hygiene = (some, options) => {
options = options || {};
let errorCount = 0;
const eol = es.through(function (file) {
if (/\r\n?/g.test(file.contents.toString('utf8'))) {
console.error(file.relative + ': Bad EOL found');
errorCount++;
}
this.emit('data', file);
});
const indentation = es.through(function (file) {
file.contents
.toString('utf8')
.split(/\r\n|\r|\n/)
.forEach((line, i) => {
if (/^\s*$/.test(line)) {
// empty or whitespace lines are OK
} else if (/^(\s\s\s\s)+.*/.test(line)) {
// good indent
} else if (/^[\t]+.*/.test(line)) {
console.error(file.relative + '(' + (i + 1) + ',1): Bad whitespace indentation');
errorCount++;
}
});
this.emit('data', file);
});
const formatting = es.map(function (file, cb) {
tsfmt.processString(file.path, file.contents.toString('utf8'), {
verify: true,
tsfmt: true,
editorconfig: true
// verbose: true
}).then(result => {
if (result.error) {
console.error(result.message);
errorCount++;
}
cb(null, file);
}, err => {
cb(err);
});
});
const tsl = es.through(function (file) {
const configuration = tslint.Configuration.findConfiguration(null, '.');
const options = {
formatter: 'json'
};
const contents = file.contents.toString('utf8');
const program = require('tslint').Linter.createProgram("./tsconfig.json");
const linter = new tslint.Linter(options, program);
linter.lint(file.relative, contents, configuration.results);
const result = linter.getResult();
if (result.failureCount > 0 || result.errorCount > 0) {
reportFailures(result.failures);
if (result.failureCount) {
errorCount += result.failureCount;
}
if (result.errorCount) {
errorCount += result.errorCount;
}
}
this.emit('data', file);
});
const tsFiles = [];
const tscFilesTracker = es.through(function (file) {
tsFiles.push(file.path.replace(/\\/g, '/'));
tsFiles.push(file.path);
this.emit('data', file);
});
const tsc = function () {
function customReporter() {
return {
error: function (error) {
const fullFilename = error.fullFilename || '';
const relativeFilename = error.relativeFilename || '';
if (tsFiles.findIndex(file => fullFilename === file || relativeFilename === file) === -1) {
return;
}
errorCount += 1;
console.error(error.message);
},
finish: function () {
// forget the summary
}
};
}
const tsProject = ts.createProject('tsconfig.json', { strict: true });
const reporter = customReporter();
return tsProject(reporter);
}
const result = gulp.src(some || all, {
base: '.'
})
.pipe(filter(f => !f.stat.isDirectory()))
.pipe(filter(eolFilter))
.pipe(options.skipEOL ? es.through() : eol)
.pipe(filter(indentationFilter))
.pipe(indentation);
const typescript = result
.pipe(filter(tslintFilter))
.pipe(formatting)
.pipe(tsl)
.pipe(tscFilesTracker)
.pipe(tsc());
return typescript
.pipe(es.through(null, function () {
if (errorCount > 0) {
this.emit('error', 'Hygiene failed with ' + errorCount + ' errors. Check \'gulpfile.js\'.');
} else {
this.emit('end');
}
}));
};
gulp.task('hygiene', () => hygiene());
// this allows us to run hygiene as a git pre-commit hook
if (require.main === module) {
const cp = require('child_process');
process.on('unhandledRejection', (reason, p) => {
console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
process.exit(1);
});
cp.exec('git config core.autocrlf', (err, out) => {
const skipEOL = out.trim() === 'true';
if (process.argv.length > 2) {
return hygiene(process.argv.slice(2), {
skipEOL: skipEOL
}).on('error', err => {
console.error();
console.error(err);
process.exit(1);
});
}
cp.exec('git diff --cached --name-only', {
maxBuffer: 2000 * 1024
}, (err, out) => {
if (err) {
console.error();
console.error(err);
process.exit(1);
}
const some = out
.split(/\r?\n/)
.filter(l => !!l);
hygiene(some, {
skipEOL: skipEOL
}).on('error', err => {
console.error();
console.error(err);
process.exit(1);
});
});
});
}