How do i do incremental builds

[ghost]

Running build.py without nuking the build directory causes this error:

INFO: Unpacking "chromium" to ./ ...
Traceback (most recent call last):
File "C:\u\build.py", line 241, in
main()
File "C:\u\build.py", line 173, in main
downloads.unpack_downloads(download_info, downloads_cache, source_tree, extractors)
File "C:\u\ungoogled-chromium\utils\downloads.py", line 343, in unpack_downloads
extractor_func(
File "C:\u\ungoogled-chromium\utils_extraction.py", line 225, in extract_tar_file
_extract_tar_with_7z(sevenzip_bin, archive_path, output_dir, relative_to)
File "C:\u\ungoogled-chromium\utils_extraction.py", line 118, in _extract_tar_with_7z
_process_relative_to(output_dir, relative_to)
File "C:\u\ungoogled-chromium\utils_extraction.py", line 94, in _process_relative_to
src_path.rename(dest_path)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\lib\pathlib.py", line 1234, in rename
self._accessor.rename(self, target)
FileExistsError: [WinError 183] Cannot create a file when that file already exists: 'C:\u\build\src\chromium-116.0.5845.180\.clang-format' -> 'C:\u\build\src\.clang-format'

compiling from scratch takes 4 hours on my hardware 😢.

[ghost]

also can we get an ungoogled chromium discord server ❤️

[jstkdng]

you can use ccache for faster subsequent compilations, but that would only be necessary if you want to further develop ungoogled chromium.

also can we get an ungoogled chromium discord server ❤️

there's an matrix room you can join. #ungoogled-software_Lobby:gitter.im

[PF4Public]

Using ccache in the incremental build scenario has only marginal speedup as they change lots of sources each release which results in many misses, but it is still better than nothing. True incremental build would keep all objects and rebuild only the ones with changed sources. In this case ccache has no benefit with 100% misses.