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import * as path from 'path';

import * as graalpyInstall from './install-graalpy';

import {

IS_WINDOWS,

validateVersion,

IGraalPyManifestRelease,

getBinaryDirectory

} from './utils';

import * as semver from 'semver';

import * as core from '@actions/core';

import * as tc from '@actions/tool-cache';

export async function findGraalPyVersion(

versionSpec: string,

architecture: string,

updateEnvironment: boolean,

checkLatest: boolean,

allowPreReleases: boolean

): Promise<string> {

let resolvedGraalPyVersion = '';

let installDir: string | null;

let releases: IGraalPyManifestRelease[] | undefined;

let graalpyVersionSpec = parseGraalPyVersion(versionSpec);

if (checkLatest) {

releases = await graalpyInstall.getAvailableGraalPyVersions();

if (releases && releases.length > 0) {

const releaseData = graalpyInstall.findRelease(

releases,

graalpyVersionSpec,

architecture,

false

);

if (releaseData) {

core.info(`Resolved as GraalPy ${releaseData.resolvedGraalPyVersion}`);

graalpyVersionSpec = releaseData.resolvedGraalPyVersion;

} else {

core.info(

`Failed to resolve GraalPy ${graalpyVersionSpec} from manifest`

);

}

}

}

({installDir, resolvedGraalPyVersion} = findGraalPyToolCache(

graalpyVersionSpec,

architecture

));

if (!installDir) {

({installDir, resolvedGraalPyVersion} = await graalpyInstall.installGraalPy(

graalpyVersionSpec,

architecture,

allowPreReleases,

releases

));

}

const pipDir = IS_WINDOWS ? 'Scripts' : 'bin';

const _binDir = path.join(installDir, pipDir);

const binaryExtension = IS_WINDOWS ? '.exe' : '';

const pythonPath = path.join(

IS_WINDOWS ? installDir : _binDir,

`python${binaryExtension}`

);

const pythonLocation = getBinaryDirectory(installDir);

if (updateEnvironment) {

core.exportVariable('pythonLocation', installDir);

// https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython

core.exportVariable('Python_ROOT_DIR', installDir);

// https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2

core.exportVariable('Python2_ROOT_DIR', installDir);

// https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3

core.exportVariable('Python3_ROOT_DIR', installDir);

core.exportVariable('PKG_CONFIG_PATH', pythonLocation + '/lib/pkgconfig');

core.addPath(pythonLocation);

core.addPath(_binDir);

}

core.setOutput('python-version', 'graalpy' + resolvedGraalPyVersion);

core.setOutput('python-path', pythonPath);

return resolvedGraalPyVersion;

}

export function findGraalPyToolCache(

graalpyVersion: string,

architecture: string

) {

let resolvedGraalPyVersion = '';

let installDir: string | null = tc.find(

'GraalPy',

graalpyVersion,

architecture

);

if (installDir) {

// 'tc.find' finds tool based on Python version but we also need to check

// whether GraalPy version satisfies requested version.

resolvedGraalPyVersion = path.basename(path.dirname(installDir));

const isGraalPyVersionSatisfies = semver.satisfies(

resolvedGraalPyVersion,

graalpyVersion

);

if (!isGraalPyVersionSatisfies) {

installDir = null;

resolvedGraalPyVersion = '';

}

}

if (!installDir) {

core.info(

`GraalPy version ${graalpyVersion} was not found in the local cache`

);

}

return {installDir, resolvedGraalPyVersion};

}

export function parseGraalPyVersion(versionSpec: string): string {

const versions = versionSpec.split('-').filter(item => !!item);

if (/^(graalpy)(.+)/.test(versions[0])) {

const version = versions[0].replace('graalpy', '');

versions.splice(0, 1, 'graalpy', version);

}

if (versions.length < 2 || versions[0] != 'graalpy') {

throw new Error(

"Invalid 'version' property for GraalPy. GraalPy version should be specified as 'graalpy<python-version>' or 'graalpy-<python-version>'. See README for examples and documentation."

);

}

const pythonVersion = versions[1];

if (!validateVersion(pythonVersion)) {

throw new Error(

"Invalid 'version' property for GraalPy. GraalPy versions should satisfy SemVer notation. See README for examples and documentation."

);

}

return pythonVersion;

}