ts-patch
Version:
Patch typescript to support custom transformers in tsconfig.json
102 lines • 4.57 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getModuleFile = getModuleFile;
const fs_1 = __importDefault(require("fs"));
const patch_detail_1 = require("../patch/patch-detail");
const path_1 = __importDefault(require("path"));
const utils_1 = require("../utils");
const ts_module_1 = require("./ts-module");
/* ****************************************************************************************************************** */
// region: Config
/* ****************************************************************************************************************** */
const SHORT_CHUNK_SIZE = 1024;
const LONG_CHUNK_SIZE = 64536;
// endregion
/* ****************************************************************************************************************** */
// region: Helpers
/* ****************************************************************************************************************** */
function readFile(filePath, headersOnly) {
return (0, utils_1.withFileLock)(filePath, () => {
let CHUNK_SIZE = headersOnly ? SHORT_CHUNK_SIZE : LONG_CHUNK_SIZE;
let result = '';
let doneReadingHeaders = false;
let bytesRead;
let buffer = Buffer.alloc(CHUNK_SIZE);
const headerLines = [];
let isLastHeaderIncomplete = false;
const fd = fs_1.default.openSync(filePath, 'r');
try {
readFileLoop: while ((bytesRead = fs_1.default.readSync(fd, buffer, 0, CHUNK_SIZE, null)) > 0) {
const chunkString = buffer.toString('utf-8', 0, bytesRead);
/* Handle Header */
if (!doneReadingHeaders) {
const lines = chunkString.split('\n');
lineLoop: for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (i === 0 && isLastHeaderIncomplete) {
headerLines[headerLines.length - 1] += line;
}
else {
if (line.startsWith('///')) {
headerLines.push(line);
}
else {
doneReadingHeaders = true;
if (!headersOnly) {
result += lines.slice(i).join('\n');
CHUNK_SIZE = LONG_CHUNK_SIZE;
buffer = Buffer.alloc(CHUNK_SIZE);
break lineLoop;
}
else {
break readFileLoop;
}
}
}
}
if (!doneReadingHeaders)
isLastHeaderIncomplete = !chunkString.endsWith('\n');
}
else {
/* Handle content */
result += chunkString;
}
}
return { headerLines, content: headersOnly ? undefined : result };
}
finally {
fs_1.default.closeSync(fd);
}
});
}
// endregion
/* ****************************************************************************************************************** */
// region: Utils
/* ****************************************************************************************************************** */
function getModuleFile(filePath, loadFullContent) {
/* Determine shim redirect file - see: https://github.com/nonara/ts-patch/issues/174 */
const moduleName = path_1.default.basename(filePath);
const contentFilePath = ts_module_1.TsModule.getContentFilePathForModulePath(filePath);
/* Get PatchDetail */
let { headerLines, content } = readFile(contentFilePath, !loadFullContent);
const patchDetail = patch_detail_1.PatchDetail.fromHeader(headerLines);
return {
moduleName,
filePath,
contentFilePath,
patchDetail,
get content() {
if (content == null)
content = readFile(this.contentFilePath, false).content;
return content;
},
getHash() {
return (0, utils_1.getHash)(this.content);
}
};
}
// endregion
//# sourceMappingURL=module-file.js.map