The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Event’ Category

Where can I find a comprehensive list of Delphi “compiler magic” declarations? – Stack Overflow

Posted by jpluimers on 2022/11/16

A long time ago, I posted one of the answers to [Wayback/Archive] Where can I find a comprehensive list of Delphi “compiler magic” declarations? – Stack Overflow

So for my link archive, these are the main ways of assembling an (always incomplete, as only partially documented) list:

–jeroen

Posted in Conference Topics, Conferences, Delphi, Development, EKON, Event, Software Development, Undocumented Delphi | Leave a Comment »

Database fiddle sites

Posted by jpluimers on 2022/10/27

I knew there was JSFiddle for live playing around with JavaScript and more in your browser, so I wondered if there was a similar site for databases and SQL queries.

There are, so here are a few database fiddle sites: SQL playgrounds where you can live play with SQL queries (sometimes even without an underlying example database).

All via [Wayback/Archive.is] database fiddle – Google Search:

Read the rest of this entry »

Posted in Conference Topics, Conferences, Database Development, DB2, Development, Event, Firebird, JavaScript/ECMAScript, JSFiddle, MariaDB, MySQL, OracleDB, PL/SQL, PostgreSQL, Scripting, Software Development, SQL, SQL Server, SQLite, T-SQL | Leave a Comment »

A year ago on Telegram: “Do I need to use GarbageCollectAtoms in Delphi? I used it in delphi 7, but I dont know what is benefit. 😐”

Posted by jpluimers on 2022/10/20

Last week I found out that I had some Windows ATOM issues before, but this beats them easily was still a draft in stead if in the blog queue.

I got reminded to it by someone asking on Telegram about

“Do I need to use GarbageCollectAtoms in Delphi? I used it in delphi 7, but I dont know what is benefit. 😐”.

The short answer is: yes, if your Delphi application does terminate in a way that the Controls unit cannot cleanly unload (and cannot free the Windows atoms) or leaks Windows atoms in a different way. I have been in that situation and that’s why I wrote the above blog post that got published in 2016.

The longer answer is likely no, both the Windows atom and registered Windows message table share a heap and that registered VCL Windows message leaking bug got fixed some 10 years ago in Delphi XE2, see:

Read the rest of this entry »

Posted in Conference Topics, Conferences, Delphi, Development, Event, Power User, Software Development, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows NT, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Vista, Windows XP | Leave a Comment »

iOS/Android Privacy: InAppBrowser.com – see what JavaScript commands get injected through an in-app browser · Felix Krause

Posted by jpluimers on 2022/08/31

Especially on Archive, but also on Android and other mobile operating systems, mobile apps can have their in-app browsers to circumvent the OS provided wrapper around the system browser.

On iOS, the Safari is the only system browser engine whereas on Android you can have other engines too, so less Android applications have in-app browsers.

Most of those in-app browsers are in social media applications that go to great length to keep their users inside a walled garden.

The site [Wayback/Archive] inAppBrowser.com helps checking how severely information is leaked through the in-app browser as those potentially have a lot of control. TikTok is worst capturing all input including credentials like user names and passwords.

Read the rest of this entry »

Posted in Chrome, Conference Topics, Conferences, Development, Event, Firefox, iOS Development, JavaScript/ECMAScript, Mobile Development, Power User, Privacy, Safari, Scripting, Security, Software Development, Web Browsers, Web Development | Leave a Comment »

Don’t fall for the golden hammer: avoid git empty commits, especially for kicking off parts of your CI/CD

Posted by jpluimers on 2022/08/16

A while back Kristian Köhntopp (isotopp) wrote a blog post after quite a Twitter argument where he poses against using git empty commits. I’m with Kris: don’t use them for anything, especially not for kicking off your CI/CD.

Basically his blog post is all about avoiding to think you have a golden hammer, and avoid falling for the Law of the instrument – Wikipedia.

Originally, Abraham Maslow said in 1966:

“I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.”

For me this has all to do with preventing technical debt: find the right tool to kick your CI/CD pipeline after part of that chain somehow malfunctioned is way better than polluting the commit history with empty commits.

His blog post: [Wayback/Archive.is] Empty commits and other wrong tools for the job | Die wunderbare Welt von Isotopp

The most important bit in it:

And since we are talking about CI/CD pipelines: Don’t YAML them. Don’t JSON them. Don’t XML them.

Programming in any of these three is wrong use of tooling, and you should not do it.

  • YAML, JSON and XML are for declarative things.
  • Python, Go and Rust are for procedural things.
  • Bash is for interactive use only.

Use the proper tooling for the job. Be an engineer.

This very much reminds me of an Entwickler Konferenz keynote a long time ago, where Neal Ford made the point that most software engineers act very much unlike what is expected from traditional engineering way of operating where the engineer is both responsible and liable for his actions.

The start of the Twitter thread: [Archive.is] Kristian Köhntopp on Twitter: “A lot of people right now that git is an API and triggering CI/CD pipelines with empty commits replaces the equivalent of a Kubernetes controller for their fragile pile of bash in git triggers. This is broken and begets more brokenness. Evidence:… “

The tweet that started the subtweet: [Archive.is] Florian Haas on Twitter: “(For anyone wondering, what’s nice about this one is it works in any CI. So you don’t have to remember how to manually kick off a GitLab CI pipeline or GitHub Action or Zuul job, you just push an empty commit and off you go.)”

Other relevant tweets:

Yes, you want to avoid shell too (anything like for instance sh, ash, dash, bash or zsh), but you have to know it (and understand why to avoid it) as often it is the only interactive way to access systems from the console.

And of course Kris also wrote a big document on that too, which is available as full PDF (Wayback), full HTML (Wayback) and chaptered HTML Die UNIX Shell /bin/sh.

But more importantly, Kris wrote [Wayback/Archive.is] Using Python to bash | Die wunderbare Welt von Isotopp which is about using Python to do things you might be tempted to do in the shell. It quotes

Shell is a thing you want to understand and then not use, because you learned to understand it.

which is from the German post in thread [Wayback/Archive.is] Bashprogrammierung, wo gehts am besten los which quotes Kris’ 1998 message:

From kris Tue Sep 1 11:26:12 1998
From: kris
Newsgroups: de.comp.os.unix.misc
Subject: Re: Shell-Frage, find, xargs, kopieren von vielen Dateien
References: <6seh24$q9a$2...@nz12.rz.uni-karlsruhe.de>
From: kr...@koehntopp.de (Kristian Koehntopp)
Alignment: chaotic/neutral
X-Copyright: (C) Copyright 1987-1998 Kristian Koehntopp -- All rights
reserved.
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

Marc.Hab...@gmx.de (Marc Haber) writes:
>mir ist das ganze Zeug mit der Shell, find, xargs und Konsorten noch
>reichlich verschlüsselt.

http://www.koehntopp.de/kris/artikel/unix/shellprogrammierung/

>xargs hin oder sollte ich besser ein Perlskript schreiben?

Verwende Perl. Shell will man koennen, dann aber nicht verwenden.

Kristian

–jeroen

Posted in *nix, *nix-tools, ash/dash, ash/dash development, bash, bash, Conference Topics, Conferences, Continuous Integration, Development, DVCS - Distributed Version Control, Event, git, Power User, Scripting, sh, Sh Shell, Software Development, Source Code Management, Technical Debt | Leave a Comment »

 
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