Enable global npm installation

The location of testrpc-sc is hardcoded as:

        const npm = './node_modules/.bin/testrpc-sc';
        const yarn = './node_modules/ethereumjs-testrpc-sc/build/cli.node.js';

Can the output of npm bin be used instead?

$ pwd
/home/ravi/repo/erc20/zeppelin-hitchhiker-guide
$ npm bin
/home/ravi/repo/erc20/node_modules/.bin

Here is the error I get:

$ $(npm bin)/solidity-coverage
Generating coverage environment
Instrumenting  ./coverageEnv/contracts/ConvertLib.sol
Instrumenting  ./coverageEnv/contracts/MetaCoin.sol
Skipping instrumentation of  ./coverageEnv/contracts/Migrations.sol
Instrumenting  ./coverageEnv/contracts/ProofOfExistence1.sol
testRpc stderr:
/bin/sh: ./node_modules/.bin/testrpc-sc: No such file or directory

Cleaning up...
testRpc errored after launching as a childprocess.
Exiting without generating coverage...
$ 

[HaleTom]

FYI, yarn does have a selective version resolution feature.

The npm doco says:

If you want to use it as a command line tool, something like the grunt CLI, then you want to install it globally. On the other hand, if you want to depend on the package from your own module using something like Node’s require, then you want to install locally.

Because I want to use solidity-coverage at the command line, I installed it globally.

So, following the docs, ./node_modules/.bin/testrpc-sc won’t work.

Could we assume that the user has setup their $PATH correctly and execute it without a leading path?

[cgewecke]

Renaming this issue and filing under enhancement.