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https://github.com/Roald87/TcBlack
Opnionated code formatter for TwinCAT.
https://github.com/Roald87/TcBlack
beckhoff beckhoff-twincat beckhoff-twincat-plc formatter industrial-automation plc plc-programming twincat twincat3
Last synced: about 2 months ago
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Opnionated code formatter for TwinCAT.
- Host: GitHub
- URL: https://github.com/Roald87/TcBlack
- Owner: Roald87
- License: mit
- Created: 2020-05-10T06:57:38.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2022-12-25T11:38:08.000Z (about 2 years ago)
- Last Synced: 2024-11-18T17:50:38.320Z (about 2 months ago)
- Topics: beckhoff, beckhoff-twincat, beckhoff-twincat-plc, formatter, industrial-automation, plc, plc-programming, twincat, twincat3
- Language: C#
- Homepage:
- Size: 1.96 MB
- Stars: 105
- Watchers: 21
- Forks: 10
- Open Issues: 18
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# TcBlack: TwinCAT code formatter
Opinionated code formatter for TwinCAT. Currently in the **alpha state**. Use at your **own risk** and only with files which are under source control.
_TcBlack_ is available as a command line tool ([TcBlackCLI](https://github.com/Roald87/TcBlack/releases/tag/v0.2.0)) as well as a visual studio extension ([TcBlackExtension](https://github.com/Roald87/TcBlack/releases/tag/TcBlackExtension_v0.1.0)).
## Current state
`FB_Child` from ShowcaseProject formatted using the _TcBlackExtension_ for Visual Studio.
## _TcBlackCLI_ usage
1. [Download](https://github.com/Roald87/TcBlack/releases/latest) the latest release.
1. Open the windows command prompt and navigate to the folder containing `TcBlack.exe`.
1. Reformat one or more file by giving their full path names:
```
> TcBlack --safe --file C:\Full\Path\To\Filename.TcPOU C:\Full\Path\To\AnotherFilename.TcPOU
```
or using the short version and format a single file:
```
> TcBlack --safe -f C:\Full\Path\To\Filename.TcPOU
```
or format a whole project at once and replace all indentation by a two spaces:
```
> TcBlack --safe -f C:\Full\Path\To\Project.plcproj --indentation " "
```
For more info enter `> TcBlack --help` in the command prompt or check the
[manual](docs/manual.md).
## Installing the extension
To install the VSIX extension in Visual Studio or TcXaeShell please see the [installation guide](docs/vsix_installation.md).
## Idea
Change
```
FUNCTION_BLOCK FB_Child EXTENDS FB_Base IMPLEMENTS I_Interface,I_Interface2
VAR_INPUT
END_VAR
VAR
SomeText: STRING;
Counter : DINT:= 1 ;
Result : DINT :=2;
Base:FB_Base;
END_VAR
===================================
SomeText:= 'Current counts';
IF Conditions[1] AND Conditions[2] AND Conditions[3] AND Conditions[4] AND Conditions[5]AND Conditions[6] THEN
Counter :=Counter+ 1;
IF Counter > 2 THEN
Counter := Counter + 5 ;
END_IF
END_IF
Base(Variable1:=2, Variable2:=3 , Variable3:= 5,Sentence:='Entropy is a real bitch.', Conditions :=Conditions);
AddTwoInts( Variable1 :=4,
Variable2:=4);
```
Into
```
FUNCTION_BLOCK FB_Child
EXTENDS FB_Base
IMPLEMENTS I_Interface, I_Interface2
VAR
SomeText : STRING;
Counter : DINT := 1;
Result : DINT := 2;
Base : FB_Base;
END_VAR
===================================
SomeText := 'Current counts';
IF
Conditions[1]
AND Conditions[2]
AND Conditions[3]
AND Conditions[4]
AND Conditions[5]
AND Conditions[6]
THEN
Counter := Counter + 1;
IF Counter > 2 THEN
Counter := Counter + 5 ;
END_IF
END_IF
Base(
Variable1:=2,
Variable2:=3 ,
Variable3:=5,
Sentence:='Entropy is a real bitch.',
Conditions:=Conditions
);
AddTwoInts(Variable1:=4, Variable2:=4);
```
## Why
Get a consistent style across your project, without having to go through all the code. Focus on the logic and structure of the code, not the formatting.
## How
By making a command line tool which can be either used manually on individual files, a whole project or added as a pre-hook commit which automatically reformats before making a commit.
## Style
Follow the same style rules as [Black](https://github.com/psf/black/) for Python (where applicable). Why try to reinvent the wheel, when Black offers a popular rule base which has been tested and tried? For more info see the [style guide](docs/style.md).
## _TcBlackCLI_ implementation
There are two modes for the _TcBlackCLI_. A safe mode which checks if the code did not undergo unwanted changes after reformatting. The non-safe mode is faster, but it could be that there were unwanted changes to the code. _TcBlackExtension_ always operates in the non-safe mode.
The safe mode builds the project before and after formatting. It then compares the generated number (a sort of checksum?) which is used as the name of the `*.compileinfo` file. This file is generated in the _\_CompileInfo_ folder of a project each time it is build.
The number doesn't change when you alter whitespaces, add/change comments or add brackets around a long if statement. Only if the actual code changes then the number also changes. For example, if you add a variable, add a line of code or change the order of variables.
## Contributing
You're more then welcome to help if you'd like! See the [contributing guidelines](CONTRIBUTING.md) for more info.