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npm outdated --wanted
I want to write an automation script which checks if a package is outdated, but only within the constraints defined in the package.json
In example, we set up our package.json like so
npm init -y npm install --save hwrld@"<0.2"
We currently get a result that looks like this
$ npm outdated Package Current Wanted Latest Location hwrld 0.0.3 0.0.3 2.0.0 foo $ echo $? 1
The ‘Wanted’ field is correct–it will output the maximum version allowable for
npm outdated will still have an exit code of
npm outdated --wanted would have this result when the next newest version exceeds the semver range we defined:
$ npm outdated --wanted $ echo $? 0
or this result when the newest version is within acceptable limits
$ npm outdated --wanted Package Current Wanted Latest Location hwrld 0.0.3 0.1.4 2.0.0 foo $ echo $? 1
A workaround such as:
output=$(npm outdated --parse) || grep -P "(?!:)(.*?:)\1" <<< "$output"
may work, however, such difficult to parse logic doesn’t really belong in client code besides out of necessity.