Is it possible to read the options directly from tsconfig?

[alexewerlof]

Given that most cli options are very similar to tsc, I usually end up require()ing tsconfig.json and manually map it to the typedoc options in typedoc.js. This procedure is tedious and error-prone. I was thinking if it's possible for typedoc to directly read the configs from a provided tsconfig file and take its options from there.
For example:

• module (mode can initialize itself from module and isolatedModules tsc options)
• target
• includeDeclarations
• exclude
• include (why not?)

I'm using a couple of tsconfig files (that extend a base).

let tsconfigSrc = require('./src/tsconfig-src');
const packageJson = require('./package');


if (tsconfigSrc.extends) {
    // Error prone. This is not how extend works.
    Object.assign(require(tsconfigSrc.extends), tsconfigSrc);
}

exports.target = tsconfigSrc.compilerOptions.target;
exports.entryPoint = packageJson.main;
exports.name = `${packageJson.name} v${packageJson.version}`;
exports.mode = 'modules';
exports.module = tsconfigSrc.compilerOptions.
exports.includeDeclarations = tsconfigSrc.compilerOptions.declaration;
exports.includes = include;
exports.exclude = tsconfigSrc.exclude;

[alexewerlof]

Re: #130 (comment)

This is supported but not documented. Took a while till I found it. Would be nice if the readme could be generated from "typedoc --help". 👍

--tsconfig Specify a js option file that should be loaded. If not specified TypeDoc will look for 'typedoc.js' in the current directory.