Function CheckAndInstallPackageUpdates

Scripts/InstallFEX.py:210–251

()

    return DidUpdate

def CheckAndInstallPackageUpdates():
    PackagesToInstall = GetPackagesToInstall()
    for Package in PackagesToInstall[:]:
        UpgradableStatus = subprocess.check_output(["apt", "list", "--upgradable", Package]).decode("utf-8")
        Found = False
        for Line in UpgradableStatus.split("\n"):
            # If the package exists to be upgraded then it will appear in this list
            # We need to check multiple lines
            # $ apt list --upgradable <Package>
            # With upgrade available
            # Listing... Done
            # <Package>/<Repo> <NewVersion> <arch> [upgradable from: <Installed version>]
            # Without upgrade available
            # Listing... Done
            # <EOF>
            if Package in Line and "upgradable" in Line:
                Found = True

        if Found == False:
            PackagesToInstall.remove(Package)

    if len(PackagesToInstall) > 0:
        print ("Found updates for packages: {}".format(PackagesToInstall))
        print ("This bit may ask for your password")

        DidInstall = False
        try:
            CmdResult = subprocess.call(["sudo", "apt-get", "-y", "install"] + PackagesToInstall)
            DidInstall = CmdResult == 0
        except KeyboardInterrupt:
            print ("Keyboard interrupt")
            DidInstall = False
            pass

        if DidInstall:
            print("Packages updated")
        else:
            print("Packages failed to update")

        return DidInstall

    return True

def CheckPackageInstallStatus():
    PackagesToInstall = GetPackagesToInstall()