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Process gitignore-style patterns in files property of package.json (
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#116)

Fixes #79
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BendingBender authored Jun 3, 2021
1 parent 009a185 commit 6d0ce6c
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Showing 14 changed files with 108 additions and 2 deletions.
28 changes: 26 additions & 2 deletions source/lib/rules/files-property.ts
Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,15 @@ import {getJSONPropertyPosition} from '../utils';
export default (context: Context): Diagnostic[] => {
const {pkg, typingsFile} = context;

if (!Array.isArray(pkg.files)) {
const packageFiles = pkg.files;
if (!Array.isArray(packageFiles)) {
return [];
}

const normalizedTypingsFile = path.normalize(typingsFile);
const normalizedFiles = globby.sync(pkg.files as string[], {cwd: context.cwd}).map(path.normalize);

const patternProcessedPackageFiles = processGitIgnoreStylePatterns(packageFiles);
const normalizedFiles = globby.sync(patternProcessedPackageFiles, {cwd: context.cwd}).map(path.normalize);

if (normalizedFiles.includes(normalizedTypingsFile)) {
return [];
Expand All @@ -36,3 +39,24 @@ export default (context: Context): Diagnostic[] => {
}
];
};

function processGitIgnoreStylePatterns(patterns: readonly string[]): string[] {
const processedPatterns = patterns
.map(pattern => {
const [negatePatternMatch] = pattern.match(/^!+/) || [];
const negationMarkersCount = negatePatternMatch ? negatePatternMatch.length : 0;

return [
pattern
.slice(negationMarkersCount)
// Strip off `/` from the start of the pattern
.replace(/^\/+/, ''),
negationMarkersCount % 2 === 0
] as const;
})
// Only include pattern if it has an even count of negation markers
.filter(([, hasEvenCountOfNegationMarkers]) => hasEvenCountOfNegationMarkers)
.map(([processedPattern]) => processedPattern);

return [...new Set(processedPatterns)];
}
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@@ -0,0 +1,3 @@
module.exports.default = (foo, bar) => {
return foo + bar;
};
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@@ -0,0 +1,7 @@
{
"name": "foo",
"files": [
"!!types/index.d.ts"
],
"types": "types/index.d.ts"
}
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@@ -0,0 +1,6 @@
declare const concat: {
(foo: string, bar: string): string;
(foo: number, bar: number): number;
};

export default concat;
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@@ -0,0 +1,5 @@
import {expectType} from '../../../../..';
import concat from '..';

expectType<string>(concat('foo', 'bar'));
expectType<number>(concat(1, 2));
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@@ -0,0 +1,6 @@
declare const concat: {
(foo: string, bar: string): string;
(foo: number, bar: number): number;
};

export default concat;
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@@ -0,0 +1,3 @@
module.exports.default = (foo, bar) => {
return foo + bar;
};
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@@ -0,0 +1,5 @@
import {expectType} from '../../../..';
import concat from '.';

expectType<string>(concat('foo', 'bar'));
expectType<number>(concat(1, 2));
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@@ -0,0 +1,6 @@
{
"name": "foo",
"files": [
"!index.d.ts"
]
}
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@@ -0,0 +1,3 @@
module.exports.default = (foo, bar) => {
return foo + bar;
};
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@@ -0,0 +1,7 @@
{
"name": "foo",
"files": [
"/types/index.d.ts"
],
"types": "types/index.d.ts"
}
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@@ -0,0 +1,6 @@
declare const concat: {
(foo: string, bar: string): string;
(foo: number, bar: number): number;
};

export default concat;
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
import {expectType} from '../../../../..';
import concat from '..';

expectType<string>(concat('foo', 'bar'));
expectType<number>(concat(1, 2));
20 changes: 20 additions & 0 deletions source/test/test.ts
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Expand Up @@ -45,6 +45,26 @@ test('allow specifying folders containing typings file in `files` list', async t
verify(t, diagnostics, []);
});

test('allow specifying negative gitignore-style patterns in `files` list', async t => {
const diagnostics = await tsd({cwd: path.join(__dirname, 'fixtures/files-gitignore-patterns/negative-pattern')});

verify(t, diagnostics, [
[3, 1, 'error', 'TypeScript type definition `index.d.ts` is not part of the `files` list.'],
]);
});

test('allow specifying negated negative (positive) gitignore-style patterns in `files` list', async t => {
const diagnostics = await tsd({cwd: path.join(__dirname, 'fixtures/files-gitignore-patterns/negative-pattern-negated')});

verify(t, diagnostics, []);
});

test('allow specifying root marker (/) gitignore-style patterns in `files` list', async t => {
const diagnostics = await tsd({cwd: path.join(__dirname, 'fixtures/files-gitignore-patterns/root-marker-pattern')});

verify(t, diagnostics, []);
});

test('allow specifying glob patterns containing typings file in `files` list', async t => {
const diagnostics = await tsd({cwd: path.join(__dirname, 'fixtures/files-glob')});

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