Posted by jpluimers on 2018/11/21
Posted in Uncategorized | Leave a Comment »
Posted by jpluimers on 2018/11/21
Painful lesson learned a while ago: In operations, code is not your friend. Make things simple, make them boring and make them obvious, and keep an eye on the configuration complexity cloc… – Kristian Köhntopp – Google+
Posted in Cloud, Development, DevOps, Infrastructure, Software Development | Leave a Comment »
Posted by jpluimers on 2018/11/21
Converting string literals to to date/time/timestamp related data is always tricky in many Database environments.
Firebird is no exception, especially because sometimes it truncates a zero time portion from a date-time/timestamp.
So you can get this:
select cast('30-12-1899' as TimeStamp)
from rdb$databaseThrowing an error:
conversion error from string "30-12-1899"
And this:
select cast('30.12.1899' as TimeStamp)
from rdb$databaseReturning
CAST
30-12-1899 0:00:00
–jeroen
Posted in Database Development, Development, Firebird, Software Development | Leave a Comment »
Posted by jpluimers on 2018/11/20
When creating a library of libraries where the libraries use parts of the other libraries creates a mess when organised as a repository with subrepositories having other subrepositories.
It might be better to have one big repository containing a suite of functionality. This is why darkThreading became part of darkGlass: [WayBack] Why no git submodules for the libraries it depends on? · Issue #1 · chapmanworld/darkThreading · GitHub:
You might want to maintain that suite as one big versioned repository, with a different means of structuring it than a tree of submodules. That way you can keep the more complex interdependencies between the parts you have now.
Example of the mess: [WayBack] Duplicate submodules with Git – Stack Overflow
–jeroen
Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »
Posted by jpluimers on 2018/11/20
StackOverflow / StackExchange is growing too large:
You’ve got a question about git. Its not uncommon, lots of people have questions about git. But where should the question be asked?
Source: Where does my git question go? – Programmers Meta Stack Exchange
–jeroen
Posted in Development, DVCS - Distributed Version Control, git, GitHub, Opinions, Pingback, Software Development, Source Code Management, SourceTree, Stackoverflow | Leave a Comment »
Posted by jpluimers on 2018/11/20
It’s been a wish for a very very long time: to get the name of an identifier as a string in Delphi:
For now the best one can do is either using an Assert and catching the exception (it gets you the unit name, source file name and source line number) in the links below, or using debug symbol information (like a MAP or TDS file) mentioned in the StackOverflow questions above.
C# has had a [WayBack] nameof for many years now that is evaluated at compile time: [WayBack] c# – Is nameof() evaluated at compile-time? – Stack Overflow.
There is a request RAD Studio – RSP-13290: NameOf(T) compiler (magic) function in Quality Portal by Horácio Filho about 3 years ago quotes below.
Since it took the C# team about 3 years after the original [WayBack] Add nameof operator in C# – Visual Studio request, I wonder how fast the Delphi team is.
NameOf .NET-like compiler magic (intrinsic) function would eliminate a lot of hand-written exception messages from several units.
C# 6 introduced nameof operator to obtain the simple (unqualified) string name of a variable, type, or member.
With the current Delphi implementation, after changing variables name we have ot change the related exception message as well. Putting variables name in the code is not a good practise, and is here that NameOf taking place saving tons of lines of code. As the result of NameOf(T) function (if so) is evaluated at compile time (according to the C# implementation – http://stackoverflow.com/a/26573179) we need a help from compiler or it could be achieved using RTTI.
There is a discussion on Google+ community [WayBack] https://plus.google.com/+StefanGlienke/posts/AsGHSLF4rTX.
The function could be designed as
NameOf(x: Identifier)
following the same (or similar) warranties C# provides.
Using Assert:
–jeroen
Posted in Delphi, Development, Software Development | 2 Comments »
Posted by jpluimers on 2018/11/19
Some other links (that show how much the landscape changed in 8.5 years time):
–jeroen
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Posted by jpluimers on 2018/11/19
From a long time ago: EVGA motherboard are very similar to EPOX ones (they
Once I had an FF motherboard code before even the POST started on an EP-8RDA3i motherboard.
Basically taking everything out, clearing the CMOS and putting everything back in solved the problem:
The capacitors were still OK.
–jeroen
Posted in Hardware, Power User | Leave a Comment »
Posted by jpluimers on 2018/11/19
TL;DR: BBWC are using NiMh batteries that you can replace with bigger ones.
Source: [WayBack] Refurbish the battery on an HP P410 BBWC | Opensource Blog
Via: [WayBack] Very useful hack if you are running old HP Xeon servers and want to use the original disk controllers and spinny rust. – Alan Cox – Google+
–jeroen
Posted in Hardware, Power User, RAID | Leave a Comment »
Posted by jpluimers on 2018/11/16
Downloads are from a bit cryptic page [WayBack] Download the Free Nmap Security Scanner for Linux/Mac/Windows via [WayBack] Windows | Nmap Network Scanning.
An alternative is to go to [WayBack] nmap.org/dist, then search for the bottom most files having .exe or .zip extensions.
It is much more modern than netcat (see some links on that below) and has elaborate documentation:
Suppose you need to connect to an IMAP server that requires SSL, but your mail reader doesn’t support SSL. Ncat can act as the encrypted bridge to connect the client and server. You will connect the mail client to a local port and Ncat will forward the traffic, encrypted, to the server. Here’s how to connect IMAP (port 143) on the local host to IMAP over SSL (port 993) on imap.example.com.
ncat -l localhost 143 –sh-exec “ncat –ssl imap.example.com 993”
As a comparison some netcat links:
–jeroen
Posted in *nix, nmap, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 