Init commit

packages/typescript-utils/package.json

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+{
+  "name": "@peertube/peertube-typescript-utils",
+  "private": true,
+  "version": "0.0.0",
+  "main": "dist/index.js",
+  "files": [ "dist" ],
+  "exports": {
+    "types": "./dist/index.d.ts",
+    "peertube:tsx": "./src/index.ts",
+    "default": "./dist/index.js"
+  },
+  "type": "module",
+  "devDependencies": {},
+  "scripts": {
+    "build": "tsc",
+    "watch": "tsc -w"
+  },
+  "dependencies": {}
+}

packages/typescript-utils/src/index.ts

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+export * from './types.js'

packages/typescript-utils/src/types.ts

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+/* eslint-disable @typescript-eslint/array-type */
+
+export type FunctionPropertyNames<T> = {
+  [K in keyof T]: T[K] extends Function ? K : never
+}[keyof T]
+
+export type FunctionProperties<T> = Pick<T, FunctionPropertyNames<T>>
+
+export type AttributesOnly<T> = {
+  [K in keyof T]: T[K] extends Function ? never : T[K]
+}
+
+export type PickWith<T, KT extends keyof T, V> = {
+  [P in KT]: T[P] extends V ? V : never
+}
+
+export type PickWithOpt<T, KT extends keyof T, V> = {
+  [P in KT]?: T[P] extends V ? V : never
+}
+
+// https://github.com/krzkaczor/ts-essentials Rocks!
+export type DeepPartial<T> = {
+  [P in keyof T]?: T[P] extends Array<infer U> ? Array<DeepPartial<U>>
+    : T[P] extends ReadonlyArray<infer U> ? ReadonlyArray<DeepPartial<U>>
+    : DeepPartial<T[P]>
+}
+
+type Primitive = string | Function | number | boolean | symbol | undefined | null
+export type DeepOmitHelper<T, K extends keyof T> = {
+  [P in K]: // extra level of indirection needed to trigger homomorhic behavior
+    T[P] extends infer TP // distribute over unions
+      ? TP extends Primitive ? TP // leave primitives and functions alone
+      : TP extends any[] ? DeepOmitArray<TP, K> // Array special handling
+      : DeepOmit<TP, K>
+      : never
+}
+export type DeepOmit<T, K> = T extends Primitive ? T : DeepOmitHelper<T, Exclude<keyof T, K>>
+
+export type DeepOmitArray<T extends any[], K> = {
+  [P in keyof T]: DeepOmit<T[P], K>
+}
+
+export type Unpacked<T> = T extends (infer U)[] ? U : T
+
+export type Awaitable<T> = T | PromiseLike<T>
+
+// Thanks https://stackoverflow.com/a/52761156
+export type OverloadedParameters<T> =
+  // eslint-disable-next-line max-len
+  T extends { (...args: infer A1): any, (...args: infer A2): any, (...args: infer A3): any, (...args: infer A4): any } ? A1 | A2 | A3 | A4 :
+    T extends { (...args: infer A1): any, (...args: infer A2): any, (...args: infer A3): any } ? A1 | A2 | A3 :
+    T extends { (...args: infer A1): any, (...args: infer A2): any } ? A1 | A2 :
+    T extends (...args: infer A) => any ? A
+    : any

packages/typescript-utils/tsconfig.json

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+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "rootDir": "src",
+    "tsBuildInfoFile": "./dist/.tsbuildinfo"
+  }
+}

packages/typescript-utils/tsconfig.types.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../types-generator/dist-tmp/peertube-typescript-utils",
+    "tsBuildInfoFile": "../types-generator/dist-tmp/peertube-typescript-utils/.tsbuildinfo",
+    "stripInternal": true,
+    "removeComments": false,
+    "emitDeclarationOnly": true
+  }
+}