I am currently using yarn as my package manager, but some people on my team may still use npm. I wrote a few scripts in package.json
"scripts": {
"clear": "rm -Rf app/javascripts/* & rm index.html",
"watch": "yarn clear | NODE_ENV=development webpack -w --env.dev",
"build": "yarn clear && yarn dev && yarn start",
"dev": "yarn clear | NODE_ENV=development webpack --env.dev",
"prod": "yarn clear | NODE_ENV=production webpack --progress --env.prod"
}
If I want to call clear inside of other scripts, I have to either use npm clear or yarn clear. As the script is currently written, someone who doesn't have yarn installed will run into an error.
Is there a way for me to write this package.json so that it will work regardless if someone runs npm build or yarn build, and it will use the package manager of their choosing?
You can use the variable npm_execpath, it will point to the package manager used to run the script.
For example, this will output the version of yarn or npm:
"scripts": {
"version": "$npm_execpath -v",
}
$ npm run version
> 3.10.10
$ yarn run version
> 0.21.3
Related
If I execute the following commands from the root of my Vue app (v. 2.6.12)
rm -rf node_modules
npm install
npm run serve
I get the following error
sh: vue-cli-service: command not found
If I manually add the following symlink to node_modules/.bin the error does not occur
vue-cli-service -> ../#vue/cli-service/bin/vue-cli-service.js
But I shouldn't have to do this manually, i.e. if this symlink is required, it should be created when the #vue/cli-service package is installed.
I'm using NPM version 7.0.3 and have the following declared in the devDependencies section of package.json
"#vue/cli-service": "^4.5.6"
You may be able to skirt the issue by using the following in your package.json:
"serve": "./node_modules/.bin/vue-cli-service serve"
OR
"serve": "node ./node_modules/#vue/cli-service/bin/vue-cli-service.js serve"
This is just a temporary fix, though, as it is most likely an issue with npm not setting the correct path or npm not installing the binary properly. Try upgrading npm and nvm. See #bravemaster's comment on the github issue, as this contains several potential fixes.
npm install worked for me in the past, but check the package.json, which should roughly like this:
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
...
"devDependencies": {
...
"#vue/cli-service": "~4.5.0",
...
},
Vue cli must be installed with global flag.
npm install -g vue-cli-service
If error try same command with sudo.
Vue-cli should not be in your package.json as a dependency (not even in dev-dependencies) because it is used only to generate a new project from scratch, not being necessary to run/server/build a project. (in dev or production), as the scripts are set in scripts section from package.json.
Replacing NPM with Yarn 1.X resolved this issue
I have a NPM package with TypeScript based React components. When the package is installed, I would like to run a script that essentially runs tsc to compile the TS files, then delete the src folder when done.
// Excerpt from package.json
"scripts": {
"build": "rm -rf ./dist && tsc",
"install": "tsc",
"postinstall": "rm -rf ./src tsconfig.json"
},
However, I noticed that the install hook always runs, whether you're running npm install git+ssh://git#github.com:sparkbuzz/react-components.git but also when you run npm install from within the package (during development for example)
Is there a way to ensure the install script is only executed when the NPM package is remotely installed?
I have a simple git repository https://github.com/alexey-sh/test_webpack_with_npm
I want to use it as npm dependency but without publishing in npm.
So in other words I want to install the package in my another repository as dependency.
npm i --save git+https://github.com/alexey-sh/test_webpack_with_npm.git
But I want to use a modern js in my test_webpack_with_npm project and compile it into old javascript after package installation process. To achieve it I created npm scripts (test_webpack_with_npm package)
"scripts": {
"install": "npm run build",
"build": "webpack --mode production --config webpack.config.js",
"test": "echo \"Error: no test specified\" && exit 1"
},
so now there's a weird thing:
if I run npm run build from test_webpack_with_npm repository I can get dist/index.js without class declaration (as I expected).
but if I install the package via the following command
npm i --save git+https://github.com/alexey-sh/test_webpack_with_npm.git
I get another type of dist/index.js and there are class declaration.
How can I install the test_webpack_with_npm properly? I want to see old js in node_modules/test_webpack_with_npm/dist/index.js.
Steps to reproduce:
mkdir my_test_project
cd my_test_project
npm init
npm i --save git+https://github.com/alexey-sh/test_webpack_with_npm.git
check node_modules/test_webpack_with_npm/dist/index.js
Thanks!
the fix is very simple. just replace exclude with include in webpack config
include: path.join(__dirname, 'sources'),
that works perfectly.
updated config goes here https://github.com/alexey-sh/test_webpack_with_npm/blob/master/webpack.config.js
I am trying to reuse husky for other projects (not just config file), building a lib of sorts that will be used by all other projects.
I cannot understand how and when devinstall and devuninstall scripts are executed. Cannot find any documentation either on npmjs.com.
Can someone help understand when this are getting executed please?
I've been trying to understand that too.
Turns out they do something at publication time that renames the _install script into install.
Here's the script field of the package.json found in the husky folder when installed through npm.
"scripts": {
"build": "del-cli lib && tsc",
"devinstall": "npm run build && npm run _install -- node_modules/husky && node scripts/dev-fix-path",
"devuninstall": "npm run build && npm run preuninstall -- node_modules/husky",
"fix": "npm run lint -- --fix",
"install": "node husky install",
"lint": "tslint 'src/**/*.ts'",
"postpublish": "pinst --disable",
"postversion": "git push && git push --tags",
"prepublishOnly": "npm run test && npm run build && pinst --enable && pkg-ok",
"preuninstall": "node husky uninstall",
"test": "npm run lint && jest",
"version": "jest -u && git add -A src/installer/__tests__/__snapshots__"
}
Although I can't figure where that is done
I'm trying to set up a project which makes use of express and react. And I'm trying to make the best use of React-Slingshot project to benefit from it as much as possible. But the thing is that my project needs to be served (on the server side) by a script which I wrote. That script will use express and possibly socket.io to server the client side.
I think this is a problem if I use projects like React-Slingshot since they come with their own server scripts which support hot reloading and stuff. I'm willing to give up the fancy functionality like hot reloading. But I need to keep the --watch functionality so each time some file is changed, the code is compiled without me restarting the whole server.
Right now, the script section of package.json looks like this:
"scripts": {
"preinstall": "node tools/nodeVersionCheck.js",
"setup": "node tools/setup/setupMessage.js && npm install && node tools/setup/setup.js",
"remove-demo": "babel-node tools/removeDemo.js",
"start-message": "babel-node tools/startMessage.js",
"prestart": "npm run start-message",
"start": "concurrently -k -r -s first \"npm run test:watch\" \"npm run open:src\" \"npm run lint:watch\"",
"open:src": "babel-node tools/srcServer.js",
"open:dist": "babel-node tools/distServer.js",
"lint": "esw webpack.config.* src tools --color",
"lint:watch": "npm run lint -- --watch",
"clean-dist": "npm run remove-dist && mkdir dist",
"remove-dist": "rimraf ./dist",
"prebuild": "npm run clean-dist && npm run lint && npm run test",
"build": "babel-node tools/build.js && babel server -d dist --presets es2015,stage-2",
"test": "jest",
"test:CI": "babel-node tools/testCi.js",
"test:cover": "npm run test -- --coverage ",
"test:cover:CI": "npm run test:CI -- --coverage && cat ./coverage/lcov.info | node_modules/coveralls/bin/coveralls.js",
"test:watch": "jest --watch",
"open:cover": "npm run test:cover && opn ./coverage/lcov-report/index.html",
"analyze-bundle": "babel-node ./tools/analyzeBundle.js"
},
This is a modified version of what you can find in React-Slingshot. I've made a change so when I run npm run build, it builds the server code as well and terminates. It used to be like this:
"build": "babel-node tools/build.js && npm run open:dist",
Now, I'm trying to find a way to run my own server (i.e. node temp/server.js) while the rest of the code is compiled based on --watch as for my dev environment.
I believe you need a package like watch also check this video