bootstrap.py

#!/usr/bin/env python
# Python 2.7

import os
import errno
import glob

# Meta data
project_name = 'untitled'
compiler = 'g++'
compiler_flags = ['-Wall', '-pedantic', '-pedantic-errors', '-Werror', '-Wextra', '-std=c++11']
include_paths = ['./']
library_paths = []
libraries = ['-lsfml-graphics', '-lsfml-window', '-lsfml-system']
ignored_warnings = ['switch']
debug = False
debug_flags = ['-g']
input_directory = ''
output_directory = 'bin/'

# Stored data
file = open('build.ninja', 'w')
include_flags = []
lib_path = []

# Set up ignored warnings
for warning in ignored_warnings:
    compiler_flags.append('-Wno-' + warning)

# Set up include paths
for path in include_paths:
    include_flags.append(r'-I"' + path + r'"')

# Set up library paths
for path in library_paths:
    lib_path.append('-L' + path)

# Utilities

def make_path(path):
    if path:
        try:
            os.makedirs(path)
        except OSError as exception:
            if exception.errno != errno.EEXIST:
                raise

def stringify_list(the_list):
    return ' '.join(map(str, the_list))

def make_rule(name, type, content):
    result = 'rule ' + name + '\n    '
    result = result + type + ' = ' + content + '\n\n'
    return result

def make_variable(name, string):
    return name + ' = ' + string + '\n\n'

def make_build(input, output, rule):
    return 'build ' + output + ': ' + rule + ' ' + input + '\n\n'

# Some preliminary set up
input_files = glob.glob(input_directory + '*.cpp')
out_files = []
make_path(input_directory)
make_path(output_directory)

# Start building build.ninja file

# cxxflags variable
file.write(make_variable('cxxflags', stringify_list(compiler_flags)))

# lib variable
file.write(make_variable('lib', stringify_list(library_paths + libraries)))

# cxx rule
file.write(make_rule('cxx', 'command', 'g++ ${cxxflags} ${lib} -c ${in} -o ${out}'))

# link rule
file.write(make_rule('link', 'command', 'g++ ${cxxflags} ${lib} ${in} -o ${out}'))

# Generate build sequences
for input in input_files:
    output_file = output_directory + input.replace('cpp', 'o')
    file.write(make_build(input, output_file, 'cxx'))
    out_files.append(output_file)

# Generate link sequence
file.write(make_build(stringify_list(out_files), output_directory + project_name, 'link'))