generate_makefile.py

#!python
import re

"""This script generates the Makefile for the Openflexure Microscope.

It is intended to be run whenever you need a new makefile.  The makefile lives in
the repository and is versioned, so most people never need to run this script.
"""


def part_versions(part_name, versions):
    """Given a part name and a dictionary of versions, list all the possible part names.
    
    For example::
    
       >>> part_versions("body_{}", {"a":{}, "b":{}})
       "body_a body_b"
    """
    return " ".join(part_name.format(n) for n in versions.keys())

def openscad_recipe(**kwargs):
    """Create a makefile recipe to compile an openscad file with given options."""
    output = "\t" + "openscad -o $@"
    for name, value in kwargs.iteritems():
        try:
            float(value)
        except ValueError:
            # numbers and booleans are OK, but strings need to be double-quoted on the command line.
            if value not in ["true", "false"]:
                value = '"{}"'.format(value)
        if type(value) == type(True): #need to convert boolean values
            value = "true" if value else "false"
        output += " -D '{name}={value}'".format(name=name, value=str(value))
    output += " $<\n"
    return output
    

body_versions = {
    "fibre_stage_1mm":{
        "beam_height":75,
        "xy_lever":10,
        "z_lever":10,
        "breadboard_lugs":"diagonal",
        "fixed_stage":True,
        },
    "micromanipulator_2mm":{
        "beam_height":85,
        "xy_lever":20,
        "z_lever":20,
        "breadboard_lugs":"atsides",
        "fixed_stage":False,
        },
    }
    
accessory_versions = {
    "CPS532_to_top_plate":{},
    "LED_to_top_plate":{},
    "rms_to_top_plate":{},
    "microscope_module":{},
    }
    

if __name__ == "__main__":
    with open("Makefile","w") as makefile:
        def M(line):
            makefile.write(line + "\n")
        M("# Makefile for the openflexure block stage")
        M("# Generated by generate_makefile.py")
        M(".PHONY: all cleanstl")
        M("")
        M("SOURCE = openscad")
        M("OUTPUT = builds")
        M("")
        M("BODIES := " + part_versions("main_body_{}", body_versions))
        M("BASES := " + part_versions("base_{}", body_versions))
        M("TOOLS := actuator_assembly_tools")
        M("ACCESSORIES := " + part_versions("accessories/{}", accessory_versions))
        M("COMMONPARTS := gears small_gears moving_platform")
        M("ALLPARTS := $(COMMONPARTS) $(TOOLS) $(BODIES) $(BASES) $(ACCESSORIES)")
        M("ALLSTLFILES := $(ALLPARTS:%=$(OUTPUT)/%.stl)")
        M("")
        M("parameters_file := $(SOURCE)/parameters.scad")
        M("utilities_file := $(SOURCE)/utilities.scad")
        M("all_deps := $(parameters_file) $(utilities_file)             #All targets depend on these")
        M("")
        M("all: $(ALLSTLFILES)")
        M("")
        M("cleanstl:")
        M("\t"+"rm $(STLFILES)")
        M("")
        M("#parameter and utilities files affect everything")
        M("$(OUTPUT)/%.stl: $(all_deps)")
        M("")
        M("main_body_dep_names := compact_nut_seat fibre_stage_three_legs")
        M("main_body_deps := $(main_body_dep_names:%=$(SOURCE)/%.scad)")
        for version, parameters in body_versions.items():
            M("$(OUTPUT)/main_body_" + version + ".stl: $(SOURCE)/main_body.scad $(main_body_deps)")
            M(openscad_recipe(**parameters))
            M(" ")
            M("$(OUTPUT)/base_" + version + ".stl: $(SOURCE)/base.scad $(main_body_deps)")
            M(openscad_recipe(**parameters))
        M("")
        M("$(OUTPUT)/actuator_assembly_tools.stl: $(SOURCE)/actuator_assembly_tools.scad")
        M(openscad_recipe(foot_height=26))
        M("")
        for version, parameters in accessory_versions.items():
            M("$(OUTPUT)/accessories/" + version + ".stl: $(SOURCE)/accessories/" + version + ".scad")
            M(openscad_recipe(**parameters))
        M("")
        M("$(OUTPUT)/%.stl: $(SOURCE)/%.scad $(all_deps)")
        M(openscad_recipe())
        M("")