Replace first occurrence in package.json file-CodePudding

Having hard time replacing only the occurrence of the version property value in my package.json file

what i tried

CURRENT_VERSION=$(node -p "require('./package.json').version")
sed  -i '0,/$CURRENT_VERSION/{s//1.0.2/}' package.json

-- file doesn't change --

my package.json file

{
  "version": "1.0.0",
  "dependencies": {
    "demo-dep": "1.0.0"
  }
}

CodePudding user response：

Parsing json files with sed is too prone to errors, try to avoid that and use specialized tools for the job.

npm itself can be used to set versions hassle-free, see https://docs.npmjs.com/cli/v8/commands/npm-version

In your case running npm version 1.0.2 should work

If you still want to use sed - something like this should work

sed -i "0,/$CURRENT_VERSION/ s/$CURRENT_VERSION/1.0.2/"

But if npm is not an option - i suggest you to use jq

tmp=$(mktemp); jq '.version = "1.0.2"' package.json > "$tmp" && mv "$tmp" package.json

it will certainly be less error-prone