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feature: fallback to pre-release when no stable version is found (#414)

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This allows to specify version like `3.11` or `pypy3.10` in workflows before those versions are released.
This lessen the burden for users of `setup-python` by not having to modify their workflow twice: once when a pre-release is available (e.g. `3.11-dev`) and once when the first stable release is published (e.g. `3.11`)
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Matthieu Darbois 2023-01-27 22:19:31 +01:00 • committed by GitHub
parent a6eba85bba
commit 2652534ead
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14 changed files with 524 additions and 61 deletions
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22
src/find-python.ts
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@ -34,11 +34,15 @@ export async function useCpythonVersion(
version: string,
architecture: string,
updateEnvironment: boolean,
checkLatest: boolean
checkLatest: boolean,
allowPreReleases: boolean
): Promise<InstalledVersion> {
let manifest: tc.IToolRelease[] | null = null;
const desugaredVersionSpec = desugarDevVersion(version);
let semanticVersionSpec = pythonVersionToSemantic(desugaredVersionSpec);
let semanticVersionSpec = pythonVersionToSemantic(
desugaredVersionSpec,
allowPreReleases
);
core.debug(`Semantic version spec of ${version} is ${semanticVersionSpec}`);
if (checkLatest) {
@ -178,8 +182,18 @@ interface InstalledVersion {
* Python's prelease versions look like `3.7.0b2`.
* This is the one part of Python versioning that does not look like semantic versioning, which specifies `3.7.0-b2`.
* If the version spec contains prerelease versions, we need to convert them to the semantic version equivalent.
*
* For easier use of the action, we also map 'x.y' to allow pre-release before 'x.y.0' release if allowPreReleases is true
*/
export function pythonVersionToSemantic(versionSpec: string) {
export function pythonVersionToSemantic(
versionSpec: string,
allowPreReleases: boolean
) {
const prereleaseVersion = /(\d+\.\d+\.\d+)((?:a|b|rc)\d*)/g;
return versionSpec.replace(prereleaseVersion, '$1-$2');
const majorMinor = /^(\d+)\.(\d+)$/;
let result = versionSpec.replace(prereleaseVersion, '$1-$2');
if (allowPreReleases) {
result = result.replace(majorMinor, '~$1.$2.0-0');
}
return result;
}