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prebuild.ts
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prebuild.ts
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import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
// @ts-expect-error - `prettier` is not typed
import prettier from 'prettier';
import * as R from 'ramda';
import { Project } from 'ts-morph';
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const MIN_FILE_PATHNAME = path.join(__dirname, 'src', 'zefyr.min.ts');
const PACKAGEJSON_PATHNAME = path.join(__dirname, 'package.json');
fs.writeFileSync(
PACKAGEJSON_PATHNAME,
fs
.readFileSync(PACKAGEJSON_PATHNAME, 'utf-8')
.replace('"types": "./index.d.ts"', '"types": "./dist/zefyr.min.d.ts"'),
);
let imports: Record<
string,
{
type: ReturnType<typeof resolveImport>['symbols'];
value: ReturnType<typeof resolveImport>['symbols'];
}
> = {};
const symbols: Set<string> = new Set();
const renameImport = (code: string, oldName: string, newName: string = '') => {
const project = new Project({});
const sourceFile = project.createSourceFile('temp.ts', code);
// Get all import declarations
const importDeclarations = sourceFile.getImportDeclarations();
// Find import
let importPath: string;
let rename: (newName: string) => unknown;
for (const importDeclaration of importDeclarations) {
// Handle default import
const defaultImport = importDeclaration.getDefaultImport();
if (defaultImport && defaultImport.getText() === oldName) {
importPath = importDeclaration.getModuleSpecifierValue();
rename = (newName) => defaultImport.rename(newName);
continue;
}
// Handle named import
const namedImports = importDeclaration.getNamedImports();
for (const namedImport of namedImports) {
// If there is an alias
if (namedImport.getAliasNode() && namedImport.getAliasNode()?.getText() === oldName) {
importPath = importDeclaration.getModuleSpecifierValue();
rename = (newName) => namedImport.renameAlias(newName);
}
// If there is no alias
else if (namedImport.getName() === oldName) {
importPath = importDeclaration.getModuleSpecifierValue();
rename = (newName) => namedImport.setAlias(newName);
}
}
}
// If new name is not provided, generate a new name
if (newName === '') {
const capitalize = (str: string) =>
str.length > 0 ? str[0].toUpperCase() + str.slice(1) : str;
// @ts-expect-error - `importPath` should be assigned
const _importPath = importPath;
const module = _importPath
.split('/')
.reverse()
.find((s) => s === 'global' || /^[A-Z]$/.test(s[0]));
if (module) {
if (oldName.startsWith('is') && oldName.length > 2 && oldName[2] === oldName[2].toUpperCase())
newName = `is${capitalize(module)}${oldName.slice(2)}`;
else
newName =
(/^[A-Z]$/.test(oldName[0]) ? module[0] : module[0].toLowerCase()) +
module.slice(1) +
capitalize(oldName);
} else {
newName = oldName;
if (symbols.has(newName)) {
let i = 2;
while (symbols.has(`${newName}${i}`)) i++;
newName = `${newName}${i}`;
}
}
}
// Handle object destructuring
sourceFile.forEachDescendant((node) => {
if (node.getKindName() === 'ShorthandPropertyAssignment' && node.getText() === oldName)
node.replaceWithText(`${oldName}: ${newName}`);
});
// @ts-expect-error - `rename` should be assigned
rename(newName);
// Return the updated code
return sourceFile.getFullText();
};
const stringifyImport = (options: {
defaultSymbol: string;
nonDefaultSymbols: (string | [string, string])[];
type: 'value' | 'type';
path: string;
}) => {
const { defaultSymbol, nonDefaultSymbols, path, type } = options;
let result = 'import ';
if (type === 'type') result += 'type ';
if (defaultSymbol) {
result += defaultSymbol + ' ';
if (nonDefaultSymbols.length > 0)
result +=
'{ ' +
nonDefaultSymbols
.map((s) => (typeof s === 'string' ? s : `${s[0]} as ${s[1]}`))
.join(', ') +
' } ';
} else {
result +=
'{ ' +
nonDefaultSymbols.map((s) => (typeof s === 'string' ? s : `${s[0]} as ${s[1]}`)).join(', ') +
' } ';
}
result += `from '${path}';`;
return result;
};
const resolveImport = (statement: string) => {
const trimmed = statement.trim();
const type: 'type' | 'value' = trimmed.split('import', 2)[1].trim().startsWith('type')
? 'type'
: 'value';
const withoutHead = trimmed.replace(/^import\s+/, '').replace(/^type\s+/, '');
const symbols = withoutHead.startsWith('{')
? {
default: '',
nonDefault: withoutHead
.slice(1)
.split('}', 2)[0]
.trim()
.split(',')
.map(R.trim)
.map((s) => {
const match = s.match(/^(\S+)\s+as\s+(\S+)$/);
if (!match) return s;
const result: [string, string] = [match[1], match[2]];
return result;
})
.map((s) => s),
}
: { default: withoutHead.split(/\s+/, 2)[0].trim(), nonDefault: [] };
const path = trimmed.match(/'(.*)'/)?.[1] ?? '';
return { statement, type, symbols, path };
};
const extractImports = (content: string): string[] =>
content
.split('\n')
.map((line) => line.trim())
.filter((line) => line.startsWith('import'))
.map((line) => line.match(/'(.*)'/)?.[1] ?? '')
.map((line) => line.replace(/^\.\/(.*)$/, '$1'));
const patchesDir = path.join(__dirname, 'src', 'patches');
const patchesIndex = path.join(patchesDir, 'index.ts');
const modules = extractImports(fs.readFileSync(patchesIndex, 'utf-8'));
const renameDuplicateImports = (code: string): string => {
const lines = code.split('\n');
let final = true;
const resolves: ReturnType<typeof resolveImport>[] = [];
let i = 0;
for (; i < lines.length; i++) {
const line = lines[i];
const trimmed = line.trim();
if (line.startsWith('import')) {
let statement = trimmed;
if (trimmed.endsWith('{')) {
statement += ' ';
while (!lines[++i].startsWith('}')) statement += lines[i].trim() + ' ';
statement = statement.replace(/,\s*$/, '');
statement += ' ' + lines[i].trim();
}
const resolved = resolveImport(statement);
resolves.push(resolved);
const oldResolvedSymbols = [
...(imports[resolved.path]?.value.default ? [imports[resolved.path].value.default] : []),
...(imports[resolved.path]?.value.nonDefault.map((s) =>
typeof s === 'string' ? s : s[1],
) ?? []),
...(imports[resolved.path]?.type.default ? [imports[resolved.path].type.default] : []),
...(imports[resolved.path]?.type.nonDefault.map((s) =>
typeof s === 'string' ? s : s[1],
) ?? []),
];
const resolvedSymbols = [
...(resolved.symbols.default ? [resolved.symbols.default] : []),
...(resolved.symbols.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])) ?? []),
];
for (const symbol of resolvedSymbols) {
if (symbols.has(symbol) && !oldResolvedSymbols.includes(symbol)) {
final = false;
return renameDuplicateImports(renameImport(code, symbol));
}
}
}
}
if (final)
for (const resolved of resolves) {
const resolvedSymbols = [
...(resolved.symbols.default ? [resolved.symbols.default] : []),
...(resolved.symbols.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])) ?? []),
];
if (resolved.path in imports) {
const oldResolved = imports[resolved.path];
const oldResolvedSymbolsValue = [
...(oldResolved.value.default ? [oldResolved.value.default] : []),
...(oldResolved.value.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])) ?? []),
];
const oldResolvedSymbolsType = [
...(oldResolved.type.default ? [oldResolved.type.default] : []),
...(oldResolved.type.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])) ?? []),
];
const oldResolvedSymbols = new Set([...oldResolvedSymbolsValue, ...oldResolvedSymbolsType]);
for (const symbol of resolvedSymbols) {
if (!oldResolvedSymbols.has(symbol)) {
if (symbol === resolved.symbols.default) oldResolved[resolved.type].default = symbol;
else oldResolved[resolved.type].nonDefault.push(symbol);
} else if (
oldResolvedSymbols.has(symbol) &&
resolved.type === 'value' &&
!oldResolvedSymbolsValue.includes(symbol)
) {
if (oldResolved.type.default === symbol) {
oldResolved.type.default = '';
oldResolved.value.default = symbol;
} else {
oldResolved.type.nonDefault = oldResolved.type.nonDefault.filter((s) => s !== symbol);
oldResolved.value.nonDefault.push(symbol);
}
}
}
oldResolved.value.nonDefault = R.sortBy(
(s) => (typeof s === 'string' ? s : s[1]),
oldResolved.value.nonDefault,
);
oldResolved.type.nonDefault = R.sortBy(
(s) => (typeof s === 'string' ? s : s[1]),
oldResolved.type.nonDefault,
);
} else {
imports[resolved.path] = {
value: { default: '', nonDefault: [] },
type: { default: '', nonDefault: [] },
...{
[resolved.type]: {
default: resolved.symbols.default,
nonDefault: R.sortBy(
(s) => (typeof s === 'string' ? s : s[1]),
resolved.symbols.nonDefault,
),
},
},
};
}
for (const symbol of resolvedSymbols) symbols.add(symbol);
}
return lines.join('\n');
};
let globalDeclarations = '';
const others = [];
for (const module of modules) {
const moduleDir = path.join(patchesDir, module);
const moduleIndex = path.join(moduleDir, 'index.ts');
const filenames = extractImports(fs.readFileSync(moduleIndex, 'utf-8'));
for (const filename of filenames) {
const filePathname = path.join(moduleDir, `${filename}.ts`);
const content = renameDuplicateImports(fs.readFileSync(filePathname, 'utf-8'));
const lines = content.split('\n');
let inGlobalDeclarations = false;
let i = 0;
for (; i < lines.length; i++) {
const line = lines[i];
const trimmed = line.trim();
if (trimmed.startsWith('import')) {
if (trimmed.endsWith('{')) while (!lines[++i].trim().startsWith('}'));
} else {
others.push(line);
}
if (line === 'declare global {') {
inGlobalDeclarations = true;
globalDeclarations += '\n' + line + '\n';
continue;
}
if (inGlobalDeclarations) {
if (line === '}') {
inGlobalDeclarations = false;
globalDeclarations += line + '\n';
continue;
}
globalDeclarations += line + '\n';
}
}
}
}
// Handle relative paths
for (const key of Object.keys(imports)) {
const newKey = key.replace(/^\.\.\/\.\.\/(.*?)$/, './$1');
if (key === newKey) continue;
imports[newKey] = imports[key];
delete imports[key];
}
// Sort imports
imports = Object.fromEntries(Object.entries(imports).sort());
// Sort imports
const topValueImports = [];
const topTypeImports = [];
const relativeValueImports = [];
const relativeTypeImports = [];
for (const [path, { type: typeSymbols, value: valueSymbols }] of Object.entries(imports)) {
if (path.startsWith('.')) {
if (valueSymbols.default || valueSymbols.nonDefault.length > 0)
relativeValueImports.push(
stringifyImport({
defaultSymbol: valueSymbols.default,
nonDefaultSymbols: valueSymbols.nonDefault,
type: 'value',
path,
}),
);
if (typeSymbols.default || typeSymbols.nonDefault.length > 0)
relativeTypeImports.push(
stringifyImport({
defaultSymbol: typeSymbols.default,
nonDefaultSymbols: typeSymbols.nonDefault,
type: 'type',
path,
}),
);
} else {
if (valueSymbols.default || valueSymbols.nonDefault.length > 0)
topValueImports.push(
stringifyImport({
defaultSymbol: valueSymbols.default,
nonDefaultSymbols: valueSymbols.nonDefault,
type: 'value',
path,
}),
);
if (typeSymbols.default || typeSymbols.nonDefault.length > 0)
topTypeImports.push(
stringifyImport({
defaultSymbol: typeSymbols.default,
nonDefaultSymbols: typeSymbols.nonDefault,
type: 'type',
path,
}),
);
}
}
const compareImportPaths = (a: string, b: string): number => {
const aPath = (a.match(/'(.*)'/) ?? ['', ''])[1];
const bPath = (b.match(/'(.*)'/) ?? ['', ''])[1];
if (aPath < bPath) return -1;
if (aPath > bPath) return 1;
return 0;
};
topValueImports.sort(compareImportPaths);
topTypeImports.sort(compareImportPaths);
relativeValueImports.sort(compareImportPaths);
relativeTypeImports.sort(compareImportPaths);
// Export
/** @type {string[]} */
const valueExports: string[] = [];
/** @type {string[]} */
const typeExports: string[] = [];
for (const [, { type: typeSymbols, value: valueSymbols }] of Object.entries(imports)) {
if (valueSymbols.default) valueExports.push(valueSymbols.default);
valueExports.push(...valueSymbols.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])));
if (typeSymbols.default) typeExports.push(typeSymbols.default);
typeExports.push(...typeSymbols.nonDefault.map((s) => (typeof s === 'string' ? s : s[1])));
}
valueExports.sort();
typeExports.sort();
const result = [
...topValueImports,
...(topValueImports.length > 0 ? [''] : []),
...relativeValueImports,
...(relativeValueImports.length > 0 ? [''] : []),
...relativeTypeImports,
...topTypeImports,
...(relativeTypeImports.length > 0 || topTypeImports.length > 0 ? [''] : []),
...(valueExports.length > 0 ? [`export { ${valueExports.join(', ')} };`] : []),
...(typeExports.length > 0 ? [`export type { ${typeExports.join(', ')} };`] : []),
...(valueExports.length > 0 || typeExports.length > 0 ? [''] : []),
...others,
...(others.length > 0 ? [''] : []),
'// @ts-expect-error - `patch` should be assigned',
'patch(globalThis).withStatic({ patch })',
]
.join('\n')
.replace(/\n{3,}/g, '\n\n');
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
const prettierConfig = prettier.resolveConfig.sync(path.join(__dirname, 'prettier.config.cjs'));
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
const formatted: string = prettier.format(result, {
...prettierConfig,
parser: 'typescript',
});
fs.writeFileSync('global-declarations-temp.d.ts', globalDeclarations);
fs.writeFileSync(MIN_FILE_PATHNAME, formatted);