#!/bin/sh -e export YARN_ENABLE_IMMUTABLE_INSTALLS=false rm package.json rm package-lock.json echo "create yarn2 project in the sub2" mkdir sub2 cd sub2 cat <package.json { "name": "subproject", "dependencies": { "random": "^3.0.6", "uuid": "^9.0.0" } } EOT yarn set version 2.4.3 yarn install echo "create yarn3 project in the sub3" cd .. mkdir sub3 cd sub3 cat <package.json { "name": "subproject", "dependencies": { "random": "^3.0.6", "uuid": "^9.0.0" } } EOT yarn set version 3.5.1 yarn install echo "create yarn1 project in the root" cd .. cat <package.json { "name": "subproject", "dependencies": { "random": "^3.0.6", "uuid": "^9.0.0" } } EOT yarn set version 1.22.19 yarn install