"Developing in the monorepo" instructions incomplete

[mikesamuel]

I ran into a problem with the previous startup instructions.

_scripts/build.sh and friends assume tools in ../node_modules/.bin relative to _scripts.

node_modules/_scripts/build.sh

Lines 7 to 9 in 7706485

	npm_bin=$(cd $(dirname ${BASH_SOURCE[0]}) && pwd)/../node_modules/.bin
	$npm_bin/babel src -d lib

Normally npm install in a directory that contains a package.json will create a node_modules subdirectory, but not when the current directory is named node_modules.

Renaming the node_modules directory to something else, running npm install, and then changing the directory back does not work because require(...) will not look for a node_modules subdirectory inside a node_modules directory.

This happens because of how require(...) searches ancestor-ward:

NODE_MODULES_PATHS(START)

1. let PARTS = path split(START)
2. let I = count of PARTS - 1
3. let DIRS = [GLOBAL_FOLDERS]
4. while I >= 0,
   a. if PARTS[I] = "node_modules" CONTINUE

The changed setup instructions address the problem by cloning into a different directory name so that there is no node_modules path element on "$PWD".