steps/build_image.py

from steps import step
import subprocess

class BuildImage(step.Step):
    def bitbake(self):
        """Performs the openbmc build using bitbake"""
        return "bitbake -k obmc-phosphor-image"

    def export_gbmc_config(self):
        """Sets the bitbake environment variable for GBMC_CONFIG"""
        return f"export GBMC_CONFIG={self.gbmc_config}"

    def export_gbmc_version(self):
        """Sets the bitbake environment variable for GBMC_VERSION"""
        return f"export GBMC_VERSION={self.firmware_version}"

    def export_bb_env_extrawhite(self):
        """Adds GBMC_CONFIG and GBMC_VERSION to BB_ENV_EXTRAWHITE whitelist"""
        return "export BB_ENV_EXTRAWHITE=${BB_ENV_EXTRAWHITE} GBMC_CONFIG GBMC_VERSION"

    def run_script(self):

        # command =
        # """export MACHINE=machine0 && source setup machine0 && umask 002
        # && export GBMC_CONFIG=dev && export GBMC_VERSION=x.y.z
        # && export BB_ENV_EXTRAWHITE=${BB_ENV_EXTRAWHITE} GBMC_CONFIG GBMC_VERSION
        # && bitbake -k obmc-phosphor-image
        # """
        command = " && ".join([
            self.export_machine(), self.source_setup(), self.umask(), self.export_gbmc_config(),
            self.export_gbmc_version(), self.export_bb_env_extrawhite(), self.bitbake()])

        subprocess.run(["bash", "-c", command])