@typescript/analyze-trace/dist/analyze-trace-file.js

Analyze the output of tsc --generatetrace

"use strict";
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
Object.defineProperty(exports, "__esModule", { value: true });
const fs = require("fs");
const exit = require("exit");
const yargs = require("yargs");
const analyze_trace_options_1 = require("./analyze-trace-options");
const print_trace_analysis_text_1 = require("./print-trace-analysis-text");
const print_trace_analysis_json_1 = require("./print-trace-analysis-json");
const argv = yargs(process.argv.slice(2))
    .command("$0 <tracePath> [typesPath]", "Preprocess tracing type dumps", yargs => yargs
    .positional("tracePath", { type: "string", desc: "Trace file to read", coerce: throwIfNotFile })
    .positional("typesPath", { type: "string", desc: "Corresponding types file", coerce: throwIfNotFile })
    .options(analyze_trace_options_1.commandLineOptions)
    .check(analyze_trace_options_1.checkCommandLineOptions)
    .help("h").alias("h", "help")
    .epilog("Exits with code 0 if highlights were found, 1 if no highlights were found, and 2 if an error occurred")
    .strict())
    .argv;
const tracePath = argv.tracePath;
const typesPath = argv.typesPath;
const thresholdDuration = argv.forceMillis * 1000; // microseconds
const minDuration = argv.skipMillis * 1000; // microseconds
const minPercentage = 0.6;
const importExpressionThreshold = 10;
const reportHighlights = argv.json ? print_trace_analysis_json_1.reportHighlights : print_trace_analysis_text_1.reportHighlights;
reportHighlights(tracePath, argv.expandTypes ? typesPath : undefined, thresholdDuration, minDuration, minPercentage, importExpressionThreshold)
    .then(found => exit(found ? 0 : 1))
    .catch(err => {
    console.error(`Internal Error: ${err.message}\n${err.stack}`);
    exit(2);
});
function throwIfNotFile(path) {
    var _a;
    if (!fs.existsSync(path) || !((_a = fs.statSync(path)) === null || _a === void 0 ? void 0 : _a.isFile())) {
        throw new Error(`${path} is not a file`);
    }
    return path;
}
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