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allow for optional relative resolve for non-standard extensions #428

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allow for optional relative resolve for non-standard extensions #428

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31 changes: 22 additions & 9 deletions src/resolvePath.js
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Original file line number Diff line number Diff line change
Expand Up @@ -77,9 +77,7 @@ function resolvePathFromAliasConfig(sourcePath, currentFile, opts) {
}

if (isRelativePath(aliasedSourceFile)) {
return toLocalPath(toPosixPath(
mapToRelative(opts.cwd, currentFile, aliasedSourceFile)),
);
return toLocalPath(toPosixPath(mapToRelative(opts.cwd, currentFile, aliasedSourceFile)));
}

if (process.env.NODE_ENV !== 'production') {
Expand All @@ -89,13 +87,24 @@ function resolvePathFromAliasConfig(sourcePath, currentFile, opts) {
return aliasedSourceFile;
}

const resolvers = [
resolvePathFromAliasConfig,
resolvePathFromRootConfig,
];
function resolvePathFromRelativeConfig(sourcePath, currentFile, opts) {
if (!isRelativePath(sourcePath)) {
return null;
}

const absFileInRoot = nodeResolvePath(sourcePath, path.dirname(currentFile), opts.extensions);

if (!absFileInRoot) {
return null;
}

return getRelativePath(sourcePath, currentFile, absFileInRoot, opts);
}

const resolvers = [resolvePathFromAliasConfig, resolvePathFromRootConfig];

export default function resolvePath(sourcePath, currentFile, opts) {
if (isRelativePath(sourcePath)) {
if (!opts.resolveRelativePaths && isRelativePath(sourcePath)) {
return sourcePath;
}

Expand All @@ -106,7 +115,11 @@ export default function resolvePath(sourcePath, currentFile, opts) {
const absoluteCurrentFile = path.resolve(currentFile);
let resolvedPath = null;

resolvers.some((resolver) => {
const configuredResolvers = opts.resolveRelativePaths
? [resolvePathFromRelativeConfig].concat(resolvers)
: resolvers;

configuredResolvers.some(resolver => {
resolvedPath = resolver(sourcePath, absoluteCurrentFile, normalizedOpts);
return resolvedPath !== null;
});
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43 changes: 43 additions & 0 deletions test/index.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -271,6 +271,49 @@ describe('module-resolver', () => {
});
});

describe('non-standard relative double extension', () => {
const rootTransformerOpts = {
babelrc: false,
plugins: [
[plugin, {
resolveRelativePaths: true,
root: './test/testproject/src',
extensions: ['.ios.js', '.android.js', '.js'],
}],
],
};

it('should not resolve the file path with an unknown extension', () => {
testWithImport(
'./rn',
'./test/testproject/src/rn',
rootTransformerOpts,
);
});
});

describe('non-standard relative double extension without extension stripping', () => {
const rootTransformerOpts = {
babelrc: false,
plugins: [
[plugin, {
resolveRelativePaths: true,
root: './test/testproject/src',
extensions: ['.ios.js', '.android.js', '.js'],
stripExtensions: [],
}],
],
};

it('should not resolve the file path with an unknown extension', () => {
testWithImport(
'./rn',
'./test/testproject/src/rn/index.ios.js',
rootTransformerOpts,
);
});
});

describe('non-standard double extensions with strip extensions', () => {
const rootTransformerOpts = {
babelrc: false,
Expand Down