The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for September, 2020

On my list of things to figure out: how to force fsck with opensuse Tumbleweed on Raspberry Pi 3

Posted by jpluimers on 2020/09/11

Hopefully the below links will eventually get me further in figuring out how to force fsck with opensuse Tumbleweed on Raspberry Pi 3.

For now, I just reinstalled an SD card (my Mac didn’t support the file systems and I did not have time and equipment with me to mount it to another opensuse based device).

–jeroen

Posted in *nix, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »

FreePascal downloads I used to get Web Service Toolkit to compile since the Delphi WSDL importer has braindead include support

Posted by jpluimers on 2020/09/11

The Delphi WSDL importer maintenance has been in dormant mode for a long while, which means it still barfs on WSDL include directives.

In the day and age of REST and gRPC, I don’t think it will get any love soon.

Related bug entries are for instance RSP-18630: WSDL generate bad code and RSP-17321: “Import WSDL” generates invalid code without explanation of problem are examples of this, and I’m sure that QC had more if it were still alive; I could find these in the WayBack machine:

The problem manifests itself when the WSDL file includes one or more XSD files. The generated code will contain a section like this:

  // ************************************************************************ //
  // The following types, referred to in the WSDL document are not being represented
  // in this file. They are either aliases[@] of other types represented or were referred
  // to but never[!] declared in the document. The types from the latter category
  // typically map to predefined/known XML or Embarcadero types; however, they could also 
  // indicate incorrect WSDL documents that failed to declare or import a schema type.
  // ************************************************************************ //

Further below is a series of commented out types, all starting with a ! end ending in a column with the namespace of those types.

Searching for the first line gives numerous examples as far back as Delphi 7, for instance:

Based on those, I think the reason is that the WSDL importer fails on <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" /> which is quite common in the real world.

I did not want to pursue manually modifying the WSDL file, or manually generating the types as the WSDL and XSD files were prone to changes and manual steps would make the re-import process more tedious. If you do want to do that, these link might help:

This is what I used to get this to compile and run [WayBack] Web Service Toolkit – Free Pascal wiki:

Build steps

FPC installation

  1. Run the 32-bit installer
  2. Keep all options except on the second install screen, disable Associate .inc files with FreePascal IDE
  3. Add C:\FPC\3.0.4\bin\i386-win32 to the user path

Building

  1. Recursively unzip wst-0.7u.zip
  2. Open a command prompt in the wst-0.7u directory
  3. Verify there is a ws_helper subdirectory

When compiling in Delphi, then you definitely need the FreePascal RTL sources for the PasTree unit; see [WayBack] fcl-passrc – Free Pascal wiki.

Related:

–jeroen

Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | 1 Comment »

Converting a virtual IDE disk to a virtual SCSI disk (1016192)

Posted by jpluimers on 2020/09/11

Just in case I have a VM with only IDE disks of which one ore more need to become SCSI disks: [WayBack] Converting a virtual IDE disk to a virtual SCSI disk (1016192)

TL;DR

  1. Add one SCSI disk
  2. Install drivers for it and get it recognised
  3. When the VM is shutdown:
    1. Modify the disk description of the IDE disk to SCSI (hack) or
    2. (often easier) remove the disk, then attach it to the SCSI controller

–jeroen

Posted in Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

Filename too long in Git for Windows – Stack Overflow

Posted by jpluimers on 2020/09/10

[WayBack] Filename too long in Git for Windows – Stack Overflow:

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem" /v "LongPathsEnabled" /t REG_DWORD /d 1 /f

Related:

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »

Mark Struberg on Twitter: “My key takaway is: “You can fix most conceptual problems of a Monolith by converting to MicroServices. And you can fix most conceptual problems of MicroServices by making a Monolith out of it”.

Posted by jpluimers on 2020/09/10

I wonder what the state of monoliths versus microservices is right now. Likely somewhere in the middle of SOA and Client/Server (:

[WayBack] Mark Struberg on Twitter: <<My key takaway is: “You can fix most conceptual problems of a Monolith by converting to MicroServices. And you can fix most conceptual problems of MicroServices by making a Monolith out of it”.… >>

–jeroen

Posted in Design Patterns, Development, Software Development, Systems Architecture | Leave a Comment »

Keep Your Project Files Clean With Project Magician – The Art of Delphi Programming

Posted by jpluimers on 2020/09/10

Reminder to self to install this to more than just the main dev VM as it combines DProjNormalizer and DProjSplitter, then adds a few more features: [WayBackKeep Your Project Files Clean With Project Magician – The Art of Delphi Programming

Example of the wizard that shows the additional features

[WayBack] Download

Via [WayBackKeep Your Project Files Clean With Project Magician – Uwe Raabe – Google+

–jeroen

 

 

Posted in Delphi, Development, Software Development | Leave a Comment »

Recursive loop, see loop, recursive

Posted by jpluimers on 2020/09/09

Recursion explained visually.

Via [WayBack] Wenn mehrere Generationen in den Feiertag / Vatertag starten.

[WayBack] Original picture at [WayBack] Bug Life | Chickie’s Rides | Pinterest | Vw, Volkswagen and Cars.

–jeroen

 

Posted in Conference Topics, Conferences, Development, Event, Fun, Software Development | Leave a Comment »

CppCon 2015: Niall Douglas “Racing The File System” – YouTube

Posted by jpluimers on 2020/09/09

Cool presentation on avoiding data races and race conditions when doing file system operations. It includes lots of conceptual and API suggestions on many operating systems (explaining what works where and why not), plus locking tips.

Biggest takeaway for me: always use handles to any object, and avoid static paths like a bad flue.

Well worth watching!

The slides are at [WayBack] CppCon2015/Racing the Filesystem – Niall Douglas – CppCon 2015.pdf at master · CppCon/CppCon2015 · GitHub

More talks from the same conference at [WayBack] GitHub – CppCon/CppCon2015: Presentation Materials from CppCon 2015

Via [WayBack] I asked this in the ADUG list, but didn’t think to ask here … CppCon 2015: Niall Douglas “Racing The File System” – Paul McGee – Google+

–jeroen

Posted in Development, Software Development | Leave a Comment »

Delphi – tools to generate class diagrams/hierarchy from source code

Posted by jpluimers on 2020/09/09

I know ModelMaker Tools could do this: [WayBack] Quick Question … are there any good tools available to generate class diagrams / hierarchy from existing code? Or doesn’t anyone do that anymore ? – Stefaan Lesage – Google+

But I didn’t know the other tools from the thread had options as well:

–jeroen

Posted in Delphi, Development, Diagram, PlantUML, Software Development, UML | 1 Comment »

Obtaining Build Logs with MSBuild – Visual Studio | Microsoft Docs

Posted by jpluimers on 2020/09/08

Via [WayBack] Obtaining Build Logs with MSBuild – Visual Studio | Microsoft Docs:

If you need full debug output from msbuild, then append the -verbosity diagnostic parameter.

–jeroen


Posted in Continuous Integration, Development, msbuild, Software Development | Leave a Comment »