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 ‘Software Development’ Category

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browser – Clearing old browsing data in Chrome instead of newer data – Super User

Posted by jpluimers on 2020/06/25

[WayBack] browser – Clearing old browsing data in Chrome instead of newer data – Super User had a few possibilities, but eHistory disappeared from the Chrome store (apparently due to some unknown violation), so the way that works best now is to hack the History database which is a SQLite file as mentioned in

[WayBack] How can I delete all web history that matches a specific query in Google Chrome – Super User: For literal values of “query”…You can even query your Chrome history using SQL. (Firefox too: see below. Of course, the appropriate file path will have to be changed).

If you really want you can hack the history frame chrome://history-frame/: [WayBack] How can I delete all web history that matches a specific query in Google Chrome – Super User

–jeroen

Posted in Chrome, Database Development, Development, Google, Power User, Software Development, SQL | Leave a Comment »

Go pick a leaf of that tree!

Posted by jpluimers on 2020/06/24

Still a very good (Dutch) read by mentor (not only Agile, also DCI and Marching) Robby Overvliet [WayBack/Archive.is] Go pick a leaf of that tree!:

Ben jij Agile? Weet je het zeker? Tuurlijk het whiteboard hangt en de stickies schuiven vrolijk van links naar rechts. Dagelijks is daar netjes de standup en andere feedback loops doen hun ding.

Via:

One of the cool things is that he learned a lot from Charlie Anderson, that I recollect from the Borland and Quattro Pro days. What a smal world (:

On Charlie:

–jeroen

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

On my research list: Unum – The End of (Numeric) Error

Posted by jpluimers on 2020/06/24

From about 4 years ago, so time to see how many development stacks support Unum by now: [WayBack] The End of (Numeric) Error

Crunching numbers was the prime task of early computers. The common element of these early computers is they all used integer arithmetic. John Gustafson, one of the foremost experts in scientific computing, has proposed a new number format that provides more accurate answers than standard floats, yet saves space and energy. The new format might well revolutionize the way we do numerical calculations.

Back then, I found these links through my G+ circles:

Read the rest of this entry »

Posted in Algorithms, Development, Floating point handling, Software Development, Unum | Leave a Comment »

Git – Credential Storage: caching for some time (and removing it)

Posted by jpluimers on 2020/06/24

From [WayBack] Git – Credential Storage:

Git has a few options provided in the box:

  • The default is not to cache at all. Every connection will prompt you for your username and password.
  • The “cache” mode keeps credentials in memory for a certain period of time. None of the passwords are ever stored on disk, and they are purged from the cache after 15 minutes.
  • …

$ git config --global credential.helper cache

The cache helper accepts the --timeout <seconds> option, which changes the amount of time its daemon is kept running (the default is 900, or 15 minutes).

This is a one time config setting.

To remove it, use this command:

$ git config --global unset credential.helper cache

–jeroen

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

Ten Commandments For Naming Your Code

Posted by jpluimers on 2020/06/23

Be clear, be consistent, don’t be clever, and follow these rules for naming your code.

[WayBack] Ten Commandments For Naming Your Code investigates these:

  1. Thou shalt be specific.
  2. Thou shalt not use unnecessary words.
  3. Thou shalt not use abbreviations.
  4. Thou shalt use the code’s primary human language.
  5. Thou shalt not make up words.
  6. Thou shalt not include type.
  7. Thou shalt only use non-obvious words if the meaning is obvious.
  8. Thou shalt prefer active voice.
  9. Thou shalt use consistent syntax.
  10. Thou shalt break these rules if necessary.

–jeroen

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

.NET Rocks: How do you do concurrency?

Posted by jpluimers on 2020/06/23

Since it was quite a while ago I wrote heavily concurrent code in .NET, I wanted to know about the starte of the art.

This pod cast and the book discussed in it helped a lot: [WayBack] How do you do concurrency? Carl and Richard talk to Riccardo Terrell about his book on Concurrency in .NET. https://www.manning.com/books/concurrency-i… – .NET Rocks! – Google+

Links referenced:

–jeroen

Posted in .NET, Development, Multi-Threading / Concurrency, Software Development | Leave a Comment »

tfs – How to retrieve the hash for the current commit in Git? – Stack Overflow

Posted by jpluimers on 2020/06/18

Based on [WayBack] tfs – How to retrieve the hash for the current commit in Git? – Stack Overflow

Get current hash:

git rev-parse HEAD

Show summary of current commit, including hash:

git show --summary

Show all hashes of all branches (both in heads and in remotes) and tags:

git show-ref

Get current hash with a * marking if it is dirty:

git describe --always --abbrev=0 --match "NOT A TAG" --dirty="*"

The last one was [WayBack] answered by [WayBack] Rado:

display the full sha1 of the commit, but append an asterisk to the end if the working directory is not clean. …

Here is the one liner that does:
git describe --always --abbrev=0 --match "NOT A TAG" --dirty="*"
Result: f5366ccb21588c0d7a5f7d9fa1d3f85e9f9d1ffe*

Explanation: describes (using annotated tags) the current commit, but only with tags containing “NOT A TAG”. Since tags cannot have spaces, this never matches a tag and since we want to show a result --always, the command falls back displaying the full (--abbrev=0) sha1 of the commit and it appends an asterisk if the working directory is --dirty.

–jeroen

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

Delphi Exception handling code review reminders

Posted by jpluimers on 2020/06/18

I bumped into [WayBack]When an exception is nil in the exception handler – twm’s blog for some legacy code a while ago.

Some code review reminders:

  • raise Exception( is always wrong: no exception instance is created
  • Exception.Create( without a raise is wrong most of the times
  • except end is almost always wrong
  • except and finally in encompassing blocks often is a code smell

I need to check which ones are caught by [WayBack] Code Analysis Tool | FixInsight for Delphi (which is now at [WayBack] TMS Software | VCL, FMX, ASP.NET, .NET controls & components for Delphi, C++Builder & Visual Studio | TMS FixInsight Pro.)

--jeroen

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

Lisette Sutherland: Work Together Anywhere | Lisette Sutherland | TEDxKaunas

Posted by jpluimers on 2020/06/18

[WayBack] TEDx Kaunas, 19 November 2017 – Lisette Sutherland:

“Remote workers aren’t trying to escape doing work. We’re trying to escape the Day Prison. We want to use technology to make better use of our time. We want to spend more time on things that matter to us and less time stuck in traffic.“

The site has the original transcript on the below video: Work Together Anywhere | Lisette Sutherland | TEDxKaunas.

Via: [WayBack] “People think that they want to be in the same place. But what they really want is fast communication” – Work Together Anywhere | Lisette Sutherland … – Marjan Venema – Google+

–jeroen

Read the rest of this entry »

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

Chr equivalent for Unicode in Delphi 7 – Stack Overflow

Posted by jpluimers on 2020/06/17

From a long time ago: [WayBack] chr equivalent for Unicode in Delphi 7 – Stack Overflow answered by David Heffernan:

Q

I need to initialize a Widestring in Delphi 7 but I can’t use chrfunction which is ANSI

var
  ws : Widestring;
begin

 ws := chr($FFFF) + chr($FFFF) + chr($FFFF);

end;

What can I use, then ?

A

I’m not sure there’s a simply way to do what you wish. You can convert a Word into a WideChar with a simple cast:

WideChar($FFFF)

but you cannot concatenate WideChar. So this is a compiler error:

WideChar($FFFF) + WideChar($FFFF)

You could use a helper function to get the job done:

function InitialiseWideString(const chars: array of Word): WideString;
var
  i: Integer;
begin
  SetLength(Result, Length(chars));
  for i := 0 to high(chars) do
    Result[i+1] := WideChar(chars[i]);
end;

Then you can call it like this:

ws := InitialiseWideString([$0054, $0069, $006D, $0065, $0020, $0074, $006F, 
  $0020, $0075, $0070, $0067, $0072, $0061, $0064, $0065]);

–jeroen

Posted in Delphi, Delphi 7, Development, History, Software Development | 3 Comments »

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