build_analyzer.py

#!/usr/bin/env python3
# Python 3 script to build the analyzer

import os, glob, platform

ROOT = os.path.dirname(os.path.abspath(__file__))
OUTPUT_FOLDER = ROOT + '/out'
RELEASE_FOLDER = OUTPUT_FOLDER + '/release'
DEBUG_FOLDER = OUTPUT_FOLDER + '/debug'

def build():
    #find out if we're running on mac or linux and set the dynamic library extension
    if platform.system().lower() == "darwin":
        dylib_ext = ".dylib"
    else:
        dylib_ext = ".so"
        
    print("Running on " + platform.system())

    #make sure the release folder exists, and clean out any .o/.so file if there are any
    if not os.path.exists(RELEASE_FOLDER):
        os.makedirs(RELEASE_FOLDER)

    os.chdir(RELEASE_FOLDER)
    o_files = glob.glob( "*.o" )
    o_files.extend( glob.glob( "*" + dylib_ext ) )
    for o_file in o_files:
        os.remove( o_file )
    os.chdir(ROOT)


    #make sure the debug folder exists, and clean out any .o/.so files if there are any
    if not os.path.exists(DEBUG_FOLDER):
        os.makedirs(DEBUG_FOLDER) 

    os.chdir(DEBUG_FOLDER)
    o_files = glob.glob( "*.o" );
    o_files.extend( glob.glob( "*" + dylib_ext ) )
    for o_file in o_files:
        os.remove( o_file )
    os.chdir(ROOT)

    #find all the cpp files in /source.  We'll compile all of them
    os.chdir( "source" )
    cpp_files = glob.glob( "*.cpp" );
    os.chdir(ROOT)

    #specify the search paths/dependencies/options for gcc
    include_paths = [ "./AnalyzerSDK/include" ]
    link_paths = [ "./AnalyzerSDK/lib" ]
    link_dependencies = [ "-lAnalyzer" ] #refers to libAnalyzer.dylib or libAnalyzer.so

    debug_compile_flags = "-O0 -w -c -fpic -g"
    release_compile_flags = "-O3 -w -c -fpic"

    def run_command(cmd):
        "Display cmd, then run it in a subshell, raise if there's an error"
        print(cmd)
        if os.system(cmd):
            raise Exception("Shell execution returned nonzero status")

    #loop through all the cpp files, build up the gcc command line, and attempt to compile each cpp file
    for cpp_file in cpp_files:

        #g++
        command = "g++ "

        #include paths
        for path in include_paths: 
            command += "-I\"" + path + "\" "

        release_command = command
        release_command  += release_compile_flags
        release_command += f" -o\"{RELEASE_FOLDER}/" + cpp_file.replace( ".cpp", ".o" ) + "\" " #the output file
        release_command += "\"" + "source/" + cpp_file + "\"" #the cpp file to compile

        debug_command = command
        debug_command  += debug_compile_flags
        debug_command += f" -o\"{DEBUG_FOLDER}/" + cpp_file.replace( ".cpp", ".o" ) + "\" " #the output file
        debug_command += "\"" + "source/" + cpp_file + "\"" #the cpp file to compile

        #run the commands from the command line
        run_command(release_command)
        run_command(debug_command)
        
    #lastly, link
    #g++
    command = "g++ "

    #add the library search paths
    for link_path in link_paths:
        command += "-L\"" + link_path + "\" "

    #add libraries to link against
    for link_dependency in link_dependencies:
        command += link_dependency + " "

    #make a dynamic (shared) library (.so/.dylib)

    if dylib_ext == ".dylib":
        command += "-dynamiclib "
    else:
        command += "-shared "

    #figgure out what the name of this analyzer is
    analyzer_name = ""
    for cpp_file in cpp_files:
        if cpp_file.endswith( "Analyzer.cpp" ):
            analyzer_name = cpp_file.replace( "Analyzer.cpp", "" )
            break

    #the files to create (.so/.dylib files)
    if dylib_ext == ".dylib":
        release_command = command + f"-o {RELEASE_FOLDER}/lib" + analyzer_name + "Analyzer.dylib "
        debug_command = command + f"-o {DEBUG_FOLDER}/lib" + analyzer_name + "Analyzer.dylib "
    else:
        release_command = command + f"-o\"{RELEASE_FOLDER}/lib" + analyzer_name + "Analyzer.so\" "
        debug_command = command + f"-o\"{DEBUG_FOLDER}/lib" + analyzer_name + "Analyzer.so\" "

    #add all the object files to link
    for cpp_file in cpp_files:
        release_command += RELEASE_FOLDER + "/" + cpp_file.replace( ".cpp", ".o" ) + " "
        debug_command += DEBUG_FOLDER + "/" + cpp_file.replace( ".cpp", ".o" ) + " "
        
    #run the commands from the command line
    run_command(release_command)
    run_command(debug_command)

if __name__ == "__main__":
    build()