Adding feature flag as environment variable

lib/run.js

@@ -30,10 +30,12 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.getStableHelmVersion = void 0;
 const os = __importStar(require("os"));
 const path = __importStar(require("path"));
 const util = __importStar(require("util"));
 const fs = __importStar(require("fs"));
+const semver = __importStar(require("semver"));
 const toolCache = __importStar(require("@actions/tool-cache"));
 const core = __importStar(require("@actions/core"));
 const graphql_1 = require("@octokit/graphql");
@@ -43,6 +45,7 @@ const stableHelm3Version = 'v3.5.3';
 const stableHelm2Version = 'v2.17.0';
 const LATEST_HELM2_VERSION = '2.*';
 const LATEST_HELM3_VERSION = '3.*';
+const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
 function getExecutableExtension() {
     if (os.type().match(/^Win/)) {
         return '.exe';
@@ -60,6 +63,33 @@ function getHelmDownloadURL(version) {
             return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version);
     }
 }
+function getStableHelmVersion() {
+    return __awaiter(this, void 0, void 0, function* () {
+        try {
+            const downloadPath = yield toolCache.downloadTool(helmAllReleasesUrl);
+            const responseArray = JSON.parse(fs.readFileSync(downloadPath, 'utf8').toString().trim());
+            let latestHelmVersion = semver.clean(stableHelmVersion);
+            responseArray.forEach(response => {
+                if (response && response.tag_name) {
+                    let currentHelmVerison = semver.clean(response.tag_name.toString());
+                    if (currentHelmVerison) {
+                        if (currentHelmVerison.toString().indexOf('rc') == -1 && semver.gt(currentHelmVerison, latestHelmVersion)) {
+                            //If current helm version is not a pre release and is greater than latest helm version
+                            latestHelmVersion = currentHelmVerison;
+                        }
+                    }
+                }
+            });
+            latestHelmVersion = "v" + latestHelmVersion;
+            return latestHelmVersion;
+        }
+        catch (error) {
+            core.warning(util.format("Cannot get the latest Helm info from %s. Error %s. Using default Helm version %s.", helmAllReleasesUrl, error, stableHelmVersion));
+        }
+        return stableHelmVersion;
+    });
+}
+exports.getStableHelmVersion = getStableHelmVersion;
 var walkSync = function (dir, filelist, fileToFind) {
     var files = fs.readdirSync(dir);
     filelist = filelist || [];
@@ -155,6 +185,7 @@ function findHelm(rootFolder) {
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         let version = core.getInput('version', { 'required': true });
+        if (process.env['NEW_VERSION_LOGIC'] == 'true') {
             if (version.toLocaleLowerCase() === 'latest' || version === LATEST_HELM3_VERSION) {
                 version = yield getLatestHelmVersionFor("v3");
             }
@@ -164,6 +195,15 @@ function run() {
             else if (!version.toLocaleLowerCase().startsWith('v')) {
                 version = 'v' + version;
             }
+        }
+        else {
+            if (version.toLocaleLowerCase() === 'latest') {
+                version = yield getStableHelmVersion();
+            }
+            else if (!version.toLocaleLowerCase().startsWith('v')) {
+                version = 'v' + version;
+            }
+        }
         core.debug(util.format("Downloading %s", version));
         let cachedPath = yield downloadHelm(version);
         try {

src/run.ts

@@ -1,10 +1,12 @@
 // Copyright (c) Microsoft Corporation.
+// Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
 import * as os from 'os';
 import * as path from 'path';
 import * as util from 'util';
 import * as fs from 'fs';
+import * as semver from 'semver';
 
 import * as toolCache from '@actions/tool-cache';
 import * as core from '@actions/core';
@@ -16,6 +18,7 @@ const stableHelm3Version = 'v3.5.3';
 const stableHelm2Version = 'v2.17.0';
 const LATEST_HELM2_VERSION = '2.*';
 const LATEST_HELM3_VERSION = '3.*';
+const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
 
 function getExecutableExtension(): string {
     if (os.type().match(/^Win/)) {
@@ -38,6 +41,31 @@ function getHelmDownloadURL(version: string): string {
     }
 }
 
+export async function getStableHelmVersion(): Promise<string> {
+    try {
+        const downloadPath = await toolCache.downloadTool(helmAllReleasesUrl);
+        const responseArray = JSON.parse(fs.readFileSync(downloadPath, 'utf8').toString().trim());
+        let latestHelmVersion = semver.clean(stableHelmVersion);
+        responseArray.forEach(response => {
+            if (response && response.tag_name) {
+                let currentHelmVerison = semver.clean(response.tag_name.toString());
+                if (currentHelmVerison) {
+                    if (currentHelmVerison.toString().indexOf('rc') == -1 && semver.gt(currentHelmVerison, latestHelmVersion)) {
+                        //If current helm version is not a pre release and is greater than latest helm version
+                        latestHelmVersion = currentHelmVerison;
+                    }
+                }
+            }
+        });
+        latestHelmVersion = "v" + latestHelmVersion;
+        return latestHelmVersion;
+    } catch (error) {
+        core.warning(util.format("Cannot get the latest Helm info from %s. Error %s. Using default Helm version %s.", helmAllReleasesUrl, error, stableHelmVersion));
+    }
+
+    return stableHelmVersion;
+}
+
 var walkSync = function (dir, filelist, fileToFind) {
     var files = fs.readdirSync(dir);
     filelist = filelist || [];
@@ -120,7 +148,7 @@ function getStableHelmVersionFor(type: string) {
 function isValidVersion(version: string, type: string): boolean {
     if (!version.toLocaleLowerCase().startsWith(type))
         return false;
-    return version.indexOf('rc') == -1
+    return version.indexOf('rc') == -1;
 }
 
 function findHelm(rootFolder: string): string {
@@ -137,6 +165,8 @@ function findHelm(rootFolder: string): string {
 
 async function run() {
     let version = core.getInput('version', { 'required': true });
+
+    if (process.env['NEW_VERSION_LOGIC'] == 'true') {
         if (version.toLocaleLowerCase() === 'latest' || version === LATEST_HELM3_VERSION) {
             version = await getLatestHelmVersionFor("v3");
         } else if (version === LATEST_HELM2_VERSION) {
@@ -144,6 +174,13 @@ async function run() {
         } else if (!version.toLocaleLowerCase().startsWith('v')) {
             version = 'v' + version;
         }
+    } else {
+        if (version.toLocaleLowerCase() === 'latest') {
+            version = await getStableHelmVersion();
+        } else if (!version.toLocaleLowerCase().startsWith('v')) {
+            version = 'v' + version;
+        }
+    }
 
     core.debug(util.format("Downloading %s", version));
     let cachedPath = await downloadHelm(version);