func()

in builder/context.go [117:160]

• 36 lines of code
• 7 McCabe index (conditional complexity)

func (b *Builder) getDockerRunArgsForStep(
	volName string,
	stepWorkDir string,
	step *graph.Step,
	entrypoint string,
	cmd string) []string {
	// Run user commands from a shell instance in order to mirror the shell's field splitting algorithms,
	// so we don't have to write our own argv parser for exec.Command.
	if runtime.GOOS == util.WindowsOS && step.Isolation == "" && !step.IsBuildStep() {
		// Use hyperv isolation for non-build steps.
		// Use default isolation for build step to improve performance. It assumes the docker-cli image is compatible with the host os.
		step.Isolation = "hyperv"
	}

	if runtime.GOOS == util.WindowsOS && step.IsBuildStep() {
		// Limit build command container cpu to 1
		step.CPUS = "1"
	}

	var volMounts = make(map[string]string)
	for _, mount := range step.Mounts {
		volMounts[mount.Name] = mount.MountPath
	}

	return b.getDockerRunArgs(
		volMounts,
		volName,
		stepWorkDir,
		step.DisableWorkingDirectoryOverride,
		!step.Keep,
		step.Detach,
		step.Envs,
		step.Ports,
		step.Expose,
		step.Privileged,
		step.User,
		step.Network,
		step.Isolation,
		step.CPUS,
		entrypoint,
		step.ID,
		cmd,
	)
}