# libnpmversion
[](https://npm.im/libnpmversion)
[](https://npm.im/libnpmversion)
[](https://github.com/npm/cli/actions/workflows/ci-libnpmversion.yml)
Library to do the things that 'npm version' does.
## USAGE
```js
const npmVersion = require('libnpmversion')
// argument can be one of:
// - any semver version string (set to that exact version)
// - 'major', 'minor', 'patch', 'pre{major,minor,patch}' (increment at
// that value)
// - 'from-git' (set to the latest semver-lookin git tag - this skips
// gitTagVersion, but will still sign if asked)
npmVersion(arg, {
path: '/path/to/my/pkg', // defaults to cwd
allowSameVersion: false, // allow tagging/etc to the current version
preid: '', // when arg=='pre', define the prerelease string, like 'beta' etc.
tagVersionPrefix: 'v', // tag as 'v1.2.3' when versioning to 1.2.3
commitHooks: true, // default true, run git commit hooks, default true
gitTagVersion: true, // default true, tag the version
signGitCommit: false, // default false, gpg sign the git commit
signGitTag: false, // default false, gpg sign the git tag
force: false, // push forward recklessly if any problems happen
ignoreScripts: false, // do not run pre/post/version lifecycle scripts
scriptShell: '/bin/bash', // shell to run lifecycle scripts in
message: 'v%s', // message for tag and commit, replace %s with the version
silent: false, // passed to @npmcli/run-script to control whether it logs
}).then(newVersion => {
console.error('version updated!', newVersion)
})
```
## Description
Run this in a package directory to bump the version and write the new data
back to `package.json`, `package-lock.json`, and, if present,
`npm-shrinkwrap.json`.
The `newversion` argument should be a valid semver string, a valid second
argument to [semver.inc](https://github.com/npm/node-semver#functions) (one
of `patch`, `minor`, `major`, `prepatch`, `preminor`, `premajor`,
`prerelease`), or `from-git`. In the second case, the existing version will
be incremented by 1 in the specified field. `from-git` will try to read
the latest git tag, and use that as the new npm version.
If run in a git repo, it will also create a version commit and tag. This
behavior is controlled by `gitTagVersion` (see below), and can be
disabled by setting `gitTagVersion: false` in the options.
It will fail if the working directory is not clean, unless `force: true` is
set.
If supplied with a `message` string option, it will
use it as a commit message when creating a version commit. If the
`message` option contains `%s` then that will be replaced with the
resulting version number.
If the `signGitTag` option is set, then the tag will be signed using
the `-s` flag to git. Note that you must have a default GPG key set up in
your git config for this to work properly.
If `preversion`, `version`, or `postversion` are in the `scripts` property
of the package.json, they will be executed in the appropriate sequence.
The exact order of execution is as follows:
1. Check to make sure the git working directory is clean before we get
started. Your scripts may add files to the commit in future steps.
This step is skipped if the `force` flag is set.
2. Run the `preversion` script. These scripts have access to the old
`version` in package.json. A typical use would be running your full
test suite before deploying. Any files you want added to the commit
should be explicitly added using `git add`.
3. Bump `version` in `package.json` as requested (`patch`, `minor`,
`major`, explicit version number, etc).
4. Run the `version` script. These scripts have access to the new `version`
in package.json (so they can incorporate it into file headers in
generated files for example). Again, scripts should explicitly add
generated files to the commit using `git add`.
5. Commit and tag.
6. Run the `postversion` script. Use it to clean up the file system or
automatically push the commit and/or tag.
Take the following example:
```json
{
"scripts": {
"preversion": "npm test",
"version": "npm run build && git add -A dist",
"postversion": "git push && git push --tags && rm -rf build/temp"
}
}
```
This runs all your tests, and proceeds only if they pass. Then runs your
`build` script, and adds everything in the `dist` directory to the commit.
After the commit, it pushes the new commit and tag up to the server, and
deletes the `build/temp` directory.
## API
### `npmVersion(newversion, options = {}) -> Promise<String>`
Do the things. Returns a promise that resolves to the new version if
all is well, or rejects if any errors are encountered.
### Options
#### `path` String
The path to the package being versionified. Defaults to process.cwd().
#### `allowSameVersion` Boolean
Allow setting the version to the current version in package.json. Default
`false`.
#### `preid` String
When the `newversion` is pre, premajor, preminor, or prepatch, this
defines the prerelease string, like 'beta' etc.
#### `tagVersionPrefix` String
The prefix to add to the raw semver string for the tag name. Defaults to
`'v'`. (So, by default it tags as 'v1.2.3' when versioning to 1.2.3.)
#### `commitHooks` Boolean
Run git commit hooks. Default true.
#### `gitTagVersion` Boolean
Tag the version, default true.
#### `signGitCommit` Boolean
GPG sign the git commit. Default `false`.
#### `signGitTag` Boolean
GPG sign the git tag. Default `false`.
#### `force` Boolean
Push forward recklessly if any problems happen. Default `false`.
#### `ignoreScripts` Boolean
Do not run pre/post/version lifecycle scripts. Default `false`.
#### `scriptShell` String
Path to the shell, which should execute the lifecycle scripts. Defaults to `/bin/sh` on unix, or `cmd.exe` on windows.
#### `message` String
The message for the git commit and annotated git tag that are created.
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