Lowest Semver

Fix mismatched versions in this group by choosing the lowest/oldest semver version in use.

Examples

Choose the lowest valid semver version when fixing mismatches

{
  "versionGroups": [
    {
      "dependencies": ["swing", "low"],
      "preferVersion": "lowestSemver"
    }
  ]
}

Configuration

preferVersion Required

Must be set to lowestSemver.

dependencies Optional

• An array of names of dependencies you've installed or otherwise reference in your package.json files.
• If omitted, the default behaviour is to match every dependency.
• The strings can be any combination of exact matches or glob patterns:

Examples of valid values

// match any dependency
dependencies: ["**"]

// match all dependencies with a certain scope
dependencies: ["@aws-sdk/**"]

// match specific dependencies by name
dependencies: ["react", "react-dom"]

Where this pattern is matched against

{
  "name": "HERE",
  "dependencies": { "HERE": "0.0.0" },
  "devDependencies": { "HERE": "0.0.0" },
  "overrides": { "HERE": "0.0.0" },
  "peerDependencies": { "HERE": "0.0.0" },
  "pnpm": { "overrides": { "HERE": "0.0.0" } },
  "resolutions": { "HERE": "0.0.0" }
}

dependencyTypes Optional

A "dependency type" refers to the path/location/nested property of package.json files where dependencies can be found.

• When set, only dependencies present in the named locations will be assigned to this group.
• If omitted, the default behaviour is to match dependencies everywhere they are found.
• Negated types are also supported, so a value of ["!dev", "!prod"] would assign everything except dependencies and devDependencies to this group.

See the Dependency Types guide for the list of possible values.

Tip

You can extend syncpack by defining your own customTypes.

specifierTypes Optional

• When set, only dependencies whose version specifier matches the given specifier types will be assigned to this group.
• If omitted, the default behaviour is to match all dependencies.
• Negated types are also supported, so a value of ["!latest", "!file"] would assign everything except specifiers of the format * and file:path/to/package.tgz to this group.

label Optional

• A short name or description displayed as a header in syncpack's output.
• If a label is not set then eg. "Version Group 3" will be used instead.

packages Optional

• An array of strings which should match the name properties of your package.json files.
• If omitted, the default behaviour is to match every package.
• Negated types are also supported, so a value of ["!my-client", "!my-server"] would assign everything except the packages my-client and my-server to this group.
• The strings can be any combination of exact matches or glob patterns:

Examples of valid values

// ✅ match any package name
packages: ["**"]

// ✅ match any package name with this scope
packages: ["@my-repo/**"]

// ✅ match specific packages by name
packages: ["my-server", "my-client"]

// ✅ match all packages except negated ones
packages: ["!my-server", "!@my-repo/**]

// ❌ no mixing of specific and negated packages
packages: ["my-client", "!@my-repo/**"]

// ❌ not file system paths, name properties of package.json files
packages: ["packages/my-client"]

// ❌ not file system globs, name properties of package.json files
packages: ["packages/**"]

Where this pattern is matched against

{
  "name": "HERE",
  "version": "1.0.2"
}