Package to compare tags in package.json and in repository branch

The main reason for creating this package is forgetting to add a new tag after updating the version in package.json

Install package

yarn add -D "compare-git-tag-and-package-version"
npm i -D "compare-git-tag-and-package-version"

Create tags-compare-config.js in the project root directory.

/* 
* Since version 1.0.8 this step can be skipped.
* Default is to use package.json to get package name and version.
* But if you want to beautify the output, you can create this configuration file.
*/
const appName = "AppName";
const { version: appVersion } = require("./package.json");

module.exports = {
    appName,
    appVersion
}

Add new command to package.json in script section

{
  "scripts" : {
    "compare-tags": "compare-tags",
    "bump": "npm version patch -m 'AppName version updated to v%s'",
    "bump:minor": "npm version minor -m 'AppName version updated to v%s'",
    "bump:major": "npm version major -m 'AppName version updated to v%s'"
  }
}

Output examples

INFO: Application name: AppName
INFO: Application version: v1.0.4
INFO: Tag comparison test passed successfully!

INFO: Application name: AppName
INFO: Application version: v1.0.4
ERROR: 
  The version in the package v1.0.4 doesn't match the last tag v1.0.3
  HOW TO FIX:
  1. Rebase to the release or master branch, and try again.
  2. Add the tag with "git tag -a v1.0.4 -m 'AppName version bump v1.0.4'" command
  3. Launch following scripts to add version automatically:
    a) yarn bump - to upgrade the patch version,
    b) yarn bump:minor - to upgrade the minor version,
    c) yarn bump:major - to upgrade the major version        

How to use

First of all install husky package and follow all setup instructions.

More information about husky setup

Create 'pre-push' hook

npx husky add .husky/pre-push "compare-tags"

In the next step, you can modify the hook for more information, as in the following example.

#!/bin/sh
. "$(dirname "$0")/_/husky.sh"

yarn compare-tags ||
(
    echo "❌❌ The version in the package.json doesn't match the latest tag! ❌❌";
    echo "❌❌ Push command terminated! See the information above how to solve this problem! ❌❌";
    false;
)

# If everything passes... Now we can push
echo '✅✅✅✅ You win this time... I am committing this now. ✅✅✅✅'