istanbuljs/nyc

Provide --complete-copy Option for Instrumentation as in Istanbul

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#678 opened on Sep 20, 2017

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Description

I used to run my instrumentation step with istanbul using something like this:

cross-env NODE_ENV=test istanbul instrument -i ./src/main/webapp/src -o ./src/main/webapp/instrumented --complete-copy

It basically instrumented all of the .js files, but also copied everything else, so that I could then build that folder and package it with my backend code (in this case a Java backend).

I'm trying to find a way to do it with nyc. When I run:

cross-env NODE_ENV=test nyc instrument ./src/main/webapp/src ./src/main/webapp/instrumented

That takes care of the files needing instrumentation, but I cannot get the --complete-copy behaviour present in istanbul.

I am currently doing the build with Webpack and babel-plugin-istanbul, which takes care of the problem for now, but it would be great if there was an equivalent using nyc instrument.

Contributor guide

Research direction
Examine how `nyc instrument` currently works and how Istanbul's ` complete copy` is implemented. Then add a similar option to copy non JS files.
Tech stack
javascript
Domain
tooling
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptNode.js
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70