merge.py

import os import sys

def printf(fmt, *args): print(fmt.format(*args), end='')

REPOS = [ 'https://github.com/eliasdaler/imgui-sfml', 'https://github.com/ocornut/imgui', ]

FILES = [ 'imgui-sfml/imconfig-SFML.h', 'imgui-sfml/imgui-SFML.h', 'imgui-sfml/imgui-SFML.cpp', 'imgui/imgui.cpp', 'imgui/imgui.h', 'imgui/imgui_demo.cpp', 'imgui/imgui_draw.cpp', 'imgui/imgui_internal.h', 'imgui/imconfig.h', 'imgui/stb_rect_pack.h', 'imgui/stb_textedit.h', 'imgui/stb_truetype.h', ]

def ensure_repos(): for repo in REPOS: parts = repo.split('/') if not os.path.exists(parts[-1]): printf("Cloning {}\n", repo) os.system('git clone ' + repo) printf("\n") else: printf("{} already exists, skipping {}\n", parts[-1], repo)

def check_files(): printf("\nChecking files\n") all_files_ok = True for file in FILES: ok = os.path.exists(file) all_files_ok = all_files_ok and ok printf("Checking {} exists: {}\n", file, ['no', 'yes'][ok])

printf("\nAll files OK: {}\n", ['no', 'yes'][all_files_ok])
return all_files_ok

def concat_files(contents, goalfile, sourcefile): goaltext = contents[goalfile] sourcestart = '\n//SCRIPT: Concat file {} start\n'.format(sourcefile) sourceend = '\n//SCRIPT: Concat file {} end\n'.format(sourcefile) sourcetext = sourcestart + contents[sourcefile] + sourceend del contents[sourcefile] contents[goalfile] = goaltext + sourcetext

def rename_file(contents, file, newname): contents[newname] = contents[file] del contents[file]

def inline_header(contents, file, header): comb = '#include "{}"'.format(header.split('/')[-1]) pre = '//SCRIPT: Inline {} start\n'.format(header) text = contents[header] post = '\n//SCRIPT: Inline {} end\n'.format(header) contents[file] = contents[file].replace(comb, pre + text + post, 1) contents[file] = contents[file].replace(comb, '//SCRIPT: ' + comb)

def create_files(): contents = {} for file in FILES: with open(file) as f: contents[file] = f.read()

#prepare the single cpp of imgui and imgui sfml
imguisfmlcpp = 'imgui-sfml/imgui-SFML.cpp'
contents[imguisfmlcpp] = contents[imguisfmlcpp].replace('#include <imgui.h>', '//#include <imgui.h>')
contents[imguisfmlcpp] = contents[imguisfmlcpp].replace('#include "imgui-SFML.h"', '//#include "imgui-SFML.h"')
concat_files(contents, 'imgui/imgui.cpp', 'imgui/imgui_demo.cpp')
concat_files(contents, 'imgui/imgui.cpp', 'imgui/imgui_draw.cpp')
concat_files(contents, 'imgui/imgui.cpp', 'imgui-sfml/imgui-SFML.cpp')

#patch stb
inline_header(contents, 'imgui/imgui_internal.h', 'imgui/stb_textedit.h')
for file in [x for x in FILES if 'stb_' in x]:
    inline_header(contents, 'imgui/imgui.cpp', file)

for file in [x for x in FILES if 'stb_' in x]:
    del contents[file]

#merge sfml imgui files into imgui files
concat_files(contents, 'imgui/imconfig.h', 'imgui-sfml/imconfig-SFML.h')
concat_files(contents, 'imgui/imgui.h', 'imgui-sfml/imgui-SFML.h')

#patch and concat other headers around
inline_header(contents, 'imgui/imgui.cpp', 'imgui/imgui.h')
inline_header(contents, 'imgui/imgui.cpp', 'imgui/imgui_internal.h')
inline_header(contents, 'imgui/imgui.cpp', 'imgui/imconfig.h')
inline_header(contents, 'imgui/imgui.h', 'imgui/imconfig.h')
#concat_files(contents, 'imgui/imgui.h', 'imgui/imgui_internal.h')
if 'imgui/imgui_internal.h' in contents:
    del contents['imgui/imgui_internal.h']

del contents['imgui/imconfig.h']

#rename to be distinct from the original
rename_file(contents, 'imgui/imgui.h', 'single_imgui.hpp')
rename_file(contents, 'imgui/imgui.cpp', 'single_imgui.cpp')

contents['single_imgui.hpp'] = '//DO NOT EDIT: THIS FILE IS MACHINE GENRATED\n' + contents['single_imgui.hpp']
contents['single_imgui.cpp'] = '//DO NOT EDIT: THIS FILE IS MACHINE GENRATED\n' + contents['single_imgui.cpp']

#write the new files out
printf("Writing out into dir 'out': {}\n", ", ".join(contents.keys()))
os.mkdir('out')
for i, v in contents.items():
    with open('out/' + i.split('/')[-1], 'w', newline='\n') as f:
        f.write(v)

def main(): ensure_repos() if not check_files(): printf("Some files were not OK, quitting\n") sys.exit(1)

create_files()

if name == 'main': main()