Utilizing variables in custom npm commands is possible (example taken from ):
{
"scripts": {
"demo": "echo \"Hello $npm_config_first $npm_config_last\""
}
}
Can this functionality also be achieved with yarn?
Utilizing variables in custom npm commands is possible (example taken from ):
{
"scripts": {
"demo": "echo \"Hello $npm_config_first $npm_config_last\""
}
}
Can this functionality also be achieved with yarn?
This method is effective too
"tasks": {
"check": "execute(){ if [[ $@ == *--option1* ]]; then echo 'Executing with --option1'; fi; echo 'proceed'; }; execute"
}
followed by executing:
yarn check --option1
Yarn does not have a built-in solution for this issue, but I have found a workaround:
{
"scripts": {
"example0": "echo \"Hello\"",
"example": "node -e \"const args = process.argv.slice(1).reduce((acc, arg) => { const [key, value] = arg.split('='); acc[key] = value; return acc; }, {}); console.log('Hello', args.first, args.last);\""
}
}
How to use it:
$ yarn example0 Kevin Ross // everything after the command will be treated as one argument
// interpreted as `echo "Hello" Kevin Ross`
Hello Kevin Ross // <<< output
Recommended method:
$ yarn example first=Kevin last=Ross
Hello Kevin Ross // <<< output
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