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

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Archive for September 6th, 2016

Delphi version info table: C# Builder, Delphi 8 through 10.3 Rio and Appbuilder

Posted by jpluimers on 2016/09/06

I’ve published the Delphi version info table as a Gist:

Note I need help with these:

The updated script that forms the base of this table is here:

You can pass any of these args to get information

  • Individual columns:
    • CompanyNames, Versions, ProductNames, ProductVersions, BetaNames. ReleaseDates, Architectures, CharacterSets, Defines, CompilerVersions, RTLVersions, DllSuffixes, ProjectVersions, Frameworks, ProductVersions, ProductFullNames, BaseKeyPaths, HKCU-BaseKeyPaths, HKLM-BaseKeyPaths
  • Base of the below table:
    • ProductSummaries
  • Installed info (installation status obtained through the registry):
    • InstalledProductVersions, InstalledProductFullNames, InstalledProductSummaries, InstalledPackages

An elaborate wrapper around the Define column is which is used in many projects (both open source and closed source) to distinguish between various Delphi versions, libraries and platforms at compile time (URL:

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Posted in .NET, C#, C# Builder, Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | 5 Comments »

A bash script to btrfs snapshot details like disk sizes (requires btrfs quota to be enabled)

Posted by jpluimers on 2016/09/06

One thing I’ve not figured out yet is this: How does enabling btrfs quotas impact the system? – Unix & Linux Stack Exchange

My gut feeling says it’s not much. But if someone knows: please chime in.

Anyway: btrfs quota support helps you to see how big snapshots (and other subvolumes) are.

Enabling and disabling is easy (the slash is the path from where to enable quota):

btrfs quota enable /

btrfs quota disable /

The bad thing is that there is no command that gives just the quota status. You have to revert to btrfs qgroup show /

This will show you quota groups when quota are enabled:

qgroupid         rfer         excl 
--------         ----         ---- 
0/5          16.00KiB     16.00KiB 

or errors when quota are disabled either of these two errors:

# btrfs qgroup show /
ERROR: can't perform the search - No such file or directory
ERROR: can't list qgroups: No such file or directory

# btrfs qgroup show /
ERROR: can't list qgroups: quotas not enabled

You might also want to check the syslogs as there was a [PATCH 1/2] btrfs: syslog when quota is enabled.

The btrfs qgroup output is the base for agronick/btrfs-size: A script that will print out a list of BTRFS subvolumes along with their size in megabytes and their name.

It actually shows it in human readable form (kilo/mega/giga/… bytes) and is documented at Get the size of your BTRFS Snapshots | PoisonPacket. It gives me a nice overview that corresponds to the snapper list output (see below).

The script has two drawbacks:

./btrfs-size/ line 55: can't + 0: syntax error: invalid arithmetic operator (error token is "'t + 0")

  • it can take a while for btrfs quota enable / to actually deliver the quota for all the qgroupid values snapper uses. Until that time, the columns ID/Total/Exclusive Data are empty.
  • it won’t warn you if the quota data is out of data; to check that, run the below script

# btrfs qgroup show / > /dev/null
WARNING: Qgroup data inconsistent, rescan recommended

In that case, run btrfs quota rescan / and wait for it to complete by running this command until the warning is gone:

# btrfs qgroup show / > /dev/null
WARNING: Rescan is running, qgroup data may be incorrect

If the warning reverts to WARNING: Qgroup data inconsistent, rescan recommended then you might see the effects from this bug and should not worry about it: Bug 933428 – btrfs qgroup – allways shows WARNING: Qgroup data inconsistent.

For more btrfs quota background information, see: UseCases – btrfs Wiki.


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Posted in *nix, *nix-tools, bash, Development, Linux, openSuSE, Power User, Scripting, Software Development, SuSE Linux, Tumbleweed | 1 Comment »

installing the UTF-8 encoding ftfy (fixes text for you) – via version 3.0 | Luminoso Blog

Posted by jpluimers on 2016/09/06

Simple if you know it:

pip install ftfy

That installs it as a command which is a lot easier than using it from Github at [Wayback

It knows how to solve the encoding issues in []  the future of publishing at W3C explaining about WTF-8 and Unicode history.

It didn’t solve my non-Unicode encoding issue: [Wayback] “v3/43/4r” -> “v¾¾r” -> “vóór”.

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Posted in Development, Encoding, ftfy, Mojibake, Software Development, Unicode, UTF-8, UTF8 | 4 Comments »

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