#!rsc by RouterOS
# RouterOS script: capsman-download-packages
# Copyright (c) 2018-2022 Christian Hesse <mail@eworm.de>
#                         Michael Gisbers <michael@gisbers.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# download and cleanup packages for CAP installation from CAPsMAN
# https://git.eworm.de/cgit/routeros-scripts/about/doc/capsman-download-packages.md

:local 0 "capsman-download-packages";
:global GlobalFunctionsReady;
:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }

:global CleanFilePath;
:global DownloadPackage;
:global LogPrintExit2;
:global MkDir;
:global ScriptLock;
:global WaitFullyConnected;

$ScriptLock $0;
$WaitFullyConnected;

:local PackagePath [ $CleanFilePath [ / caps-man manager get package-path ] ];
:local InstalledVersion [ / system package update get installed-version ];
:local Updated false;

:if ([ :len $PackagePath ] = 0) do={
  $LogPrintExit2 warning $0 ("The CAPsMAN package path is not defined, can not download packages.") true;
}

:if ([ :len [ / file find where name=$PackagePath type="directory" ] ] = 0) do={
  :if ([ $MkDir $PackagePath ] = false) do={
    $LogPrintExit2 warning $0 ("Creating directory at CAPsMAN package path (" . \
      $PackagePath . ") failed!") true;
  }
  $LogPrintExit2 info $0 ("Created directory at CAPsMAN package path (" . $PackagePath . \
    "). Please place your packages!") false;
}

:foreach Package in=[ / file find where type=package \
      package-version!=$InstalledVersion name~("^" . $PackagePath) ] do={
  :local File [ / file get $Package ];
  :if ($File->"package-architecture" = "mips") do={
    :set ($File->"package-architecture") "mipsbe";
  }
  :if ([ $DownloadPackage ($File->"package-name") $InstalledVersion ($File->"package-architecture") $PackagePath ] = true) do={
    :set Updated true;
    / file remove $Package;
  }
}

:if ($Updated = false && [ / system resource get uptime ] < 2m) do={
  $LogPrintExit2 info $0 ("No packages downloaded, yet. Delaying for logs.") false;
  :delay 2m;
}

:foreach Log in=[ / log find where topics=({"caps", "error"}) \
    message~("upgrade status: failed, failed to download file '.*-" . $InstalledVersion . "-.*\\.npk', no such file") ] do={
  :local Message [ / log get $Log message ];
  :local Package [ :pick $Message \
    ([ :find $Message "'" ] + 1) \
    [ :find $Message ("-" . $InstalledVersion . "-") ] ];
  :local Arch [ :pick $Message \
    ([ :find $Message ("-" . $InstalledVersion . "-") ] + 2 + [ :len $InstalledVersion ]) \
    [ :find $Message ".npk" ] ];
  :if ([ $DownloadPackage $Package $InstalledVersion $Arch $PackagePath ] = true) do={
    :set Updated true;
  }
}

:if ($Updated = true) do={
  :if ([ :len [ / system script find where name="capsman-rolling-upgrade" ] ] > 0) do={
    / system script run capsman-rolling-upgrade;
  } else={
    / caps-man remote-cap upgrade [ find where version!=$InstalledVersion ];
  }
}