Compile and run freepascal from the Atom editor - freepascal

Question

I would like to use the Atom editor to learn Pascal. What is the correct way to compile and run a simple Pascal file from the editor? I am on Windows and using the FreePascal compiler.
EDIT:
I got it using the build package as follows (thank you #Wosi):
Create a folder to hold my Pascal unit HelloWorld.pas
In the same folder I placed the following .atom-build.json file:
{
"cmd": "CompileAndRun.bat",
"args": ["{FILE_ACTIVE}"],
"sh": false,
"cwd": "{FILE_ACTIVE_PATH}"
}
And the CompileAndRun.bat contents:
#echo off
set FileName=%1
fpc %FileName%
set ProgName=%FileName:~0,-5%
start "" %ProgName%.exe

Answer 1

Use lazbuild to compile your projects. That's the easiest way.
Example:
C:\development\lazarus\lazbuild.exe MyProject.lpi
MyProject.exe
Click here to learn how to define a build command in Atom: https://atom.io/packages/build#custom-build-command
EDIT: You want to compile and run the currently opened .pas file. I strongly don't recommend to do this as a pascal program is usually part of many different .pas files beginning with the word unit. Usually you are working with projects instead of single .pas files.
Nevertheless, the resulting exe file (I assume you're on Windows) is being created in the same folder as the compiled .pas file by default.
So you simply need to call the program after compiling it.
Unfortunately you cannot set fpc as the value for cmd in your .atom-build.json file.
You need to create a batch script that is being called on each build in order to execute both steps.
Create a file called CompileAndRun.bat having this content
#echo off
set FileName=%1%
fpc %FileName%
set ProgName=%FileName:~0,-4%
%ProgName%.exe
and change the cmd value in your .atom-build.json file to
"cmd": "CompileAndRun.bat",