Bazel RUN command for C and python Programs.

[Uma Patil]

Hi Everyone,

I have main application in C and I need to integrate few tools into Bazel using Python. 

I have written the STLink CLI deploy mechanism in Python and passing the executable(.hex) of C program as input to Python program to deploy to microcontroller board. 

For now 

"Bazel Build --platform=... //application" is creating a hex file and working perfectly. 

Now i need to implement RUN command that builds the executable and also deploy that executable using STlink python Program. 

"Bazel RUN target --platform=... //application"

Here is snippet:

Main C application/ Build:

cc_binary(

  name = "app",

  srcs = glob(["*.c"]),

  deps = [

  ....

  ],

  visibility = ["//visibility:public"],

)

Python Program: //Tools/stlink/Build

py_binary(

  name = "run",

  srcs = glob(["*.py"]),

  main = "main.py",

)

Tool implementation is present in Main.py.

def flash(

try:

        programming_output = subprocess.check_output(

            [

                'ST-LINK_CLI.exe',

                '-c',

                'SN=' + str(probe),

                'SWD',

                'UR',

                'Hrst',

                '-Q',

                '-P',

                hex_file_path,

                '-V',

                '-HardRST',

                'HIGH',

                '-Rst',

            ],

          ..................................................................

if __name__ == '__main__':

    status, checksum = flash('.hex file path')

    print(status)

Problem:

I'm unable to get the RUN command to work. I need to know how can I integrate the python program into the Bazel to get the RUN Command to work. Any guidance would be of great help.

Thank you in advance.

Uma

[Konstantin]

py_binary?