c385e74454
Rather than relying on a preinstall script, set `engine-strict` to `true` in a project `.npmrc` file, relying on the `engines` having `npm` set to note that yarn should be used instead. --- Output from `npm install` changes from: ``` $ npm install > angular-srcs@12.0.0-next.7 preinstall /usr/local/account/js/angular > node tools/yarn/check-yarn.js /usr/local/account/js/angular/tools/yarn/check-yarn.js:12 throw new Error( ^ Error: Please use Yarn instead of NPM to install dependencies. See: https://yarnpkg.com/lang/en/docs/install/ at Object.<anonymous> (/usr/local/account/js/angular/tools/yarn/check-yarn.js:12:9) at Module._compile (internal/modules/cjs/loader.js:778:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10) at Module.load (internal/modules/cjs/loader.js:653:32) at tryModuleLoad (internal/modules/cjs/loader.js:593:12) at Function.Module._load (internal/modules/cjs/loader.js:585:3) at Function.Module.runMain (internal/modules/cjs/loader.js:831:12) at startup (internal/bootstrap/node.js:283:19) at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! angular-srcs@12.0.0-next.7 preinstall: `node tools/yarn/check-yarn.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the angular-srcs@12.0.0-next.7 preinstall script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /usr/local/account/.npm/_logs/2021-04-06T22_54_02_292Z-debug.log ``` to ``` $ npm install npm ERR! code ENOTSUP npm ERR! notsup Unsupported engine for angular-srcs@12.0.0-next.7: wanted: {"node":">=10.19.0 <13.0.0","yarn":">=1.22.4 <2","npm":"Plesae use yarn instead of NPM to install dependencies"} (current: {"node":"10.20.1","npm":"6.14.4"}) npm ERR! notsup Not compatible with your version of node/npm: angular-srcs@12.0.0-next.7 npm ERR! notsup Not compatible with your version of node/npm: angular-srcs@12.0.0-next.7 npm ERR! notsup Required: {"node":">=10.19.0 <13.0.0","yarn":">=1.22.4 <2","npm":"Plesae use yarn instead of NPM to install dependencies"} npm ERR! notsup Actual: {"npm":"6.14.4","node":"10.20.1"} npm ERR! A complete log of this run can be found in: npm ERR! /usr/local/account/.npm/_logs/2021-04-06T22_53_23_912Z-debug.log ``` PR Close #41477
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