public static setupIotedgedev(): void {
    try {
      let result = tl.execSync(`${Constants.iotedgedev}`, `--version`, Constants.execSyncSilentOption);
      if (result.code === 0) {
        console.log(tl.loc('DependencyAlreadyInstalled', Constants.iotedgedev, result.stdout.substring(result.stdout.indexOf("version"))));
        return;
      }
    } catch (e) {
      // If exception, it means iotedgedev is not installed. Do nothing.
    }

    let cmds: Cmd[] = [];
    let version = Constants.iotedgedevDefaultVersion;
    if (tl.getVariable(Constants.iotedgedevLockVersionKey)) {
      version = tl.getVariable(Constants.iotedgedevLockVersionKey);
    }
    tl.debug(`The specified iotedgedev version is: ${version}`);
    if (tl.osType() === Constants.osTypeLinux) {
      cmds = [
        { path: `sudo`, arg: `apt-get update`, execOption: Constants.execSyncSilentOption },
        { path: `sudo`, arg: `apt-get install -y python-setuptools`, execOption: Constants.execSyncSilentOption },
        { path: `sudo`, arg: `pip install ${Constants.iotedgedev}==${version}`, execOption: Constants.execSyncSilentOption },
      ]
    } else if (tl.osType() === Constants.osTypeWindows) {
      cmds = [
        { path: `pip`, arg: `install ${Constants.iotedgedev}==${version}`, execOption: Constants.execSyncSilentOption },
      ]
    }

    try {
      for (let cmd of cmds) {
        let result = tl.execSync(cmd.path, cmd.arg, cmd.execOption);
        if (result.code !== 0) {
          tl.debug(result.stderr);
        }
      }
    } catch (e) {
      // If exception, record error message to debug
      tl.debug(e);
    }

    let result = tl.execSync(`${Constants.iotedgedev}`, `--version`, Constants.execSyncSilentOption);
    if (result.code === 0) {
      console.log(tl.loc('DependencyInstallSuccess', Constants.iotedgedev, result.stdout.substring(result.stdout.indexOf("version"))));
    } else {
      throw Error(tl.loc('DependencyInstallFail', Constants.iotedgedev));
    }
  }

 public static debugOsType() {
   let cmd: string[] = null;
   if (tl.osType() === Constants.osTypeWindows) {
     cmd = ['systeminfo', null];
   } else if (tl.osType() === Constants.osTypeLinux) {
     cmd = [`lsb_release`, `-a`];
   }
   if (cmd != null) {
     try {
       let result = tl.execSync(cmd[0], cmd[1], Constants.execSyncSilentOption);
       tl.debug(`OS is ${result.stdout}`);
     } catch (e) {
       tl.debug(`Error happened when fetching os info: ${e.message}`);
     }
   }
 }

    public async downloadAndInstall(versionInfo: VersionInfo, downloadUrl: string): Promise<void> {
        if (!versionInfo || !versionInfo.getVersion() || !downloadUrl || !url.parse(downloadUrl)) {
            throw tl.loc("VersionCanNotBeDownloadedFromUrl", versionInfo, downloadUrl);
        }

        let version = versionInfo.getVersion();

        try {
            try {
                var downloadPath = await toolLib.downloadTool(downloadUrl)
            }
            catch (ex) {
                throw tl.loc("CouldNotDownload", downloadUrl, ex);
            }

            // Extract
            console.log(tl.loc("ExtractingPackage", downloadPath));
            try {
                var extPath = tl.osType().match(/^Win/) ? await toolLib.extractZip(downloadPath) : await toolLib.extractTar(downloadPath);
            }
            catch (ex) {
                throw tl.loc("FailedWhileExtractingPacakge", ex);
            }

            // Copy folders
            tl.debug(tl.loc("CopyingFoldersIntoPath", this.installationPath));
            var allRootLevelEnteriesInDir: string[] = tl.ls("", [extPath]).map(name => path.join(extPath, name));
            var directoriesTobeCopied: string[] = allRootLevelEnteriesInDir.filter(path => fs.lstatSync(path).isDirectory());
            directoriesTobeCopied.forEach((directoryPath) => {
                tl.cp(directoryPath, this.installationPath, "-rf", false);
            });

            // Copy files
            try {
                if (this.packageType == utils.Constants.sdk && this.isLatestInstalledVersion(version)) {
                    tl.debug(tl.loc("CopyingFilesIntoPath", this.installationPath));
                    var filesToBeCopied = allRootLevelEnteriesInDir.filter(path => !fs.lstatSync(path).isDirectory());
                    filesToBeCopied.forEach((filePath) => {
                        tl.cp(filePath, this.installationPath, "-f", false);
                    });
                }
            }
            catch (ex) {
                tl.warning(tl.loc("FailedToCopyTopLevelFiles", this.installationPath, ex));
            }

            // Cache tool
            this.createInstallationCompleteFile(versionInfo);

            console.log(tl.loc("SuccessfullyInstalled", this.packageType, version));
        }
        catch (ex) {
            throw tl.loc("FailedWhileInstallingVersionAtPath", version, this.installationPath, ex);
        }
    }

function shouldUseVstsNuGetPush(isInternalFeed: boolean, conflictsAllowed: boolean, nugetExePath: string): boolean {
    if (tl.osType() !== "Windows_NT"){
        tl.debug("Running on a non-windows platform so NuGet.exe will be used.");
        return false;
    }

    if (!isInternalFeed)
    {
        tl.debug("Pushing to an external feed so NuGet.exe will be used.");
        return false;
    }

    if (commandHelper.isOnPremisesTfs())
    {
        tl.debug("Pushing to an onPrem environment, only NuGet.exe is supported.");
        if(conflictsAllowed){
            tl.warning(tl.loc("Warning_AllowDuplicatesOnlyAvailableHosted"));
        }
        return false;
    }

    const nugetOverrideFlag = tl.getVariable("NuGet.ForceNuGetForPush");
    if (nugetOverrideFlag === "true") {
        tl.debug("NuGet.exe is force enabled for publish.");
        if(conflictsAllowed)
        {
            tl.warning(tl.loc("Warning_ForceNuGetCannotSkipConflicts"));
        }
        return false;
    }

    if (nugetOverrideFlag === "false") {
        tl.debug("NuGet.exe is force disabled for publish.");
        return true;
    }

    const vstsNuGetPushOverrideFlag = tl.getVariable("NuGet.ForceVstsNuGetPushForPush");
    if (vstsNuGetPushOverrideFlag === "true") {
        tl.debug("VstsNuGetPush.exe is force enabled for publish.");
        return true;
    }

    if (vstsNuGetPushOverrideFlag === "false") {
        tl.debug("VstsNuGetPush.exe is force disabled for publish.");
        if(conflictsAllowed)
        {
            tl.warning(tl.loc("Warning_ForceNuGetCannotSkipConflicts"));
        }
        return false;
    }

    return true;
}

    private detectMachineOS(): string[] {
        let osSuffix = [];
        let scriptRunner: trm.ToolRunner;

        try {
            console.log(tl.loc("DetectingPlatform"));
            if (tl.osType().match(/^Win/)) {
                let escapedScript = path.join(this.getCurrentDir(), 'externals', 'get-os-platform.ps1').replace(/'/g, "''");
                let command = `& '${escapedScript}'`

                let powershellPath = tl.which('powershell', true);
                scriptRunner = tl.tool(powershellPath)
                    .line('-NoLogo -Sta -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command')
                    .arg(command);
            }
            else {
                let scriptPath = path.join(this.getCurrentDir(), 'externals', 'get-os-distro.sh');
                this.setFileAttribute(scriptPath, "777");

                scriptRunner = tl.tool(tl.which(scriptPath, true));
            }

            let result: trm.IExecSyncResult = scriptRunner.execSync();

            if (result.code != 0) {
                throw tl.loc("getMachinePlatformFailed", result.error ? result.error.message : result.stderr);
            }

            let output: string = result.stdout;

            let index;
            if ((index = output.indexOf("Primary:")) >= 0) {
                let primary = output.substr(index + "Primary:".length).split(os.EOL)[0];
                osSuffix.push(primary);
                console.log(tl.loc("PrimaryPlatform", primary));
            }

            if ((index = output.indexOf("Legacy:")) >= 0) {
                let legacy = output.substr(index + "Legacy:".length).split(os.EOL)[0];
                osSuffix.push(legacy);
                console.log(tl.loc("LegacyPlatform", legacy));
            }

            if (osSuffix.length == 0) {
                throw tl.loc("CouldNotDetectPlatform");
            }
        }
        catch (ex) {
            throw tl.loc("FailedInDetectingMachineArch", JSON.stringify(ex));
        }

        return osSuffix;
    }

async function run() {
  try {
    taskLib.setResourcePath(path.join(__dirname, "task.json"));

    if (taskLib.osType() != 'Windows_NT')
      throw new Error(taskLib.loc("AI_UnsupportedOS"));

    await runBuild();
  }
  catch (error) {
    taskLib.setResult(taskLib.TaskResult.Failed, error.message);
  }
}

function addDotNetCoreToolPath() {
    try {
        let globalToolPath: string = "";
        if (tl.osType().match(/^Win/)) {
            globalToolPath = path.join(process.env.USERPROFILE, Constants.relativeGlobalToolPath);
        } else {
            globalToolPath = path.join(process.env.HOME, Constants.relativeGlobalToolPath);
        }

        console.log(tl.loc("PrependGlobalToolPath"));
        tl.mkdirP(globalToolPath);
        tl.prependPath(globalToolPath);
    } catch (error) {
        //nop
        console.log(tl.loc("ErrorWhileSettingDotNetToolPath", JSON.stringify(error)));
    }
}

async function run() {
  try {
    if (taskLib.osType() != 'Windows_NT')
      throw new Error('Only Windows systems are supported.');

    const performCleanup: string = taskLib.getVariable('advinst.cleanup');
    taskLib.debug('advinst.cleanup = ' + performCleanup);
    if (!performCleanup) {
      return;
    }

    let licensePath = path.join(taskLib.getVariable('ProgramData'), 'Caphyon\\Advanced Installer\\license80.dat');
    if (taskLib.exist(licensePath)) {
      taskLib.rmRF(licensePath);
    }
  }
  catch (error) {
    taskLib.setResult(taskLib.TaskResult.Failed, error.message);
  }
}

import Constants from "./constant";
import util from "./util";
import * as commonTelemetry from 'utility-common/telemetry';

tl.setResourcePath(path.join(__dirname, 'task.json'));

util.debugOsType();

let startTime: Date = new Date();

let action: string = tl.getInput("action", true);

let telemetryEvent = {
  hashTeamProjectId: util.sha256(tl.getVariable('system.teamProjectId')),
  taskType: action,
  osType: tl.osType(),
  buildId: tl.getVariable('build.buildId'),
  isSuccess: null,
  taskTime: null,
  serverType: tl.getVariable('System.ServerType'),
} as TelemetryEvent;

let telemetryEnabled = (tl.getVariable(Constants.variableKeyDisableTelemetry) !== 'true');
if (!util.checkSelfInHostedServer()) telemetryEnabled = false;

async function run() {
  try {
    if (action === 'Build module images') {
      console.log(tl.loc('BuildingModules'));
      await BuildImage.run();
      console.log(tl.loc('BuildingModulesFinished'));

export function resolveWildcardPath(
    pattern: string,
    allowEmptyWildcardMatch?: boolean,
    includeFolders?: boolean): string[] {
    const isWindows = tl.osType() === "Windows_NT";

    // Resolve files for the specified value or pattern
    let filesList: string[];

    // empty patterns match nothing (otherwise they will effectively match the current directory)
    if (!pattern) {
        filesList = [];
    }
    else if (pattern.indexOf("*") === -1 && pattern.indexOf("?") === -1) {

        // No pattern found, check literal path to a single file
        tl.checkPath(pattern, "files");

        // Use the specified single file
        filesList = [pattern];

    } else {
        const firstWildcardIndex = function (str) {
            const idx = str.indexOf("*");

            const idxOfWildcard = str.indexOf("?");
            if (idxOfWildcard > -1) {
                return (idx > -1) ?
                    Math.min(idx, idxOfWildcard) : idxOfWildcard;
            }

            return idx;
        };

        // Find app files matching the specified pattern
        tl.debug("Matching glob pattern: " + pattern);

        // First find the most complete path without any matching patterns
        const idx = firstWildcardIndex(pattern);
        tl.debug("Index of first wildcard: " + idx);

        // include the wildcard character because:
        //  dirname(c:\foo\bar\) => c:\foo (which will make find() return a bunch of stuff we know we'll discard)
        //  dirname(c:\foo\bar\*) => c:\foo\bar
        const findPathRoot = path.dirname(pattern.slice(0, idx + 1));

        tl.debug("find root dir: " + findPathRoot);

        // Now we get a list of all files under this root
        const allFiles = tl.find(findPathRoot);

        // Now matching the pattern against all files
        // Turn off a bunch of minimatch features to replicate the behavior of Find-Files in the old PowerShell tasks
        const patternFilter = tl.filter(
            pattern, {
                matchBase: true,
                nobrace: true,
                noext: true,
                nocomment: true,
                nonegate: true,
                nocase: isWindows,
                dot: isWindows,
            });

        filesList = allFiles.filter(patternFilter);

        // Avoid matching anything other than files
        if (!includeFolders) {
            filesList = filesList.filter((x) => tl.stats(x).isFile());
        } else {
            filesList = filesList.filter((x) => tl.stats(x).isFile() || tl.stats(x).isDirectory());
        }

        // Fail if no matching .sln files were found
        if (!allowEmptyWildcardMatch && (!filesList || filesList.length === 0)) {
            throw new Error(tl.loc("Error_NoMatchingFilesFoundForPattern", pattern));
        }
    }

    if (!isWindows) {
        return filesList;
    }
    else {
        return filesList.map((file) => file.split("/").join("\\"));
    }
}