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helpers.ts
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/
helpers.ts
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import semver from "semver";
export function hasMinVersion(
minVersion: string,
runtimeVersion: string | void,
) {
// If the range is unavailable, we're running the script during Babel's
// build process, and we want to assume that all versions are satisfied so
// that the built output will include all definitions.
if (!runtimeVersion) return true;
// semver.intersects() has some surprising behavior with comparing ranges
// with pre-release versions. We add '^' to ensure that we are always
// comparing ranges with ranges, which sidesteps this logic.
// For example:
//
// semver.intersects(`<7.0.1`, "7.0.0-beta.0") // false - surprising
// semver.intersects(`<7.0.1`, "^7.0.0-beta.0") // true - expected
//
// This is because the first falls back to
//
// semver.satisfies("7.0.0-beta.0", `<7.0.1`) // false - surprising
//
// and this fails because a prerelease version can only satisfy a range
// if it is a prerelease within the same major/minor/patch range.
//
// Note: If this is found to have issues, please also revisit the logic in
// babel-core's availableHelper() API.
if (semver.valid(runtimeVersion)) runtimeVersion = `^${runtimeVersion}`;
return (
!semver.intersects(`<${minVersion}`, runtimeVersion) &&
!semver.intersects(`>=8.0.0`, runtimeVersion)
);
}