[libcamera] Add libcamera port

[OhmV-IR]

• Changes comply with the maintainer guide.
• The name of the port matches an existing name for this component on https://repology.org/ if possible, and/or is strongly associated with that component on search engines.
• Optional dependencies are resolved in exactly one way. For example, if the component is built with CMake, all find_package calls are REQUIRED, are satisfied by vcpkg.json's declared dependencies, or disabled with CMAKE_DISABLE_FIND_PACKAGE_Xxx. (no optional deps)
• The versioning scheme in vcpkg.json matches what upstream says.
• The license declaration in vcpkg.json matches what upstream says.
• The installed as the "copyright" file matches what upstream says.
• The source code of the component installed comes from an authoritative source.
• The generated "usage text" is accurate. See adding-usage for context.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is in the new port's versions file.
• Only one version is added to each modified port's versions file.

[LilyWangLL]

Thanks for your PR. Please adjust the line indentation in file portfile.cmake by replacing tabs with 4 spaces.

[dg0yt]

The else part lacks indent.

[OhmV-IR]

? I don't see it, if you're talking about l32 it should be indented like that because its the else corresponding to the first if statement on l25

[dg0yt]

I don't think it needs both libgnutls and openssl.

[OhmV-IR]

I tested, it won't build without both

[dg0yt]

In src/libcamera/meson.build, openssl libcrypto is an alternative to libgnutls. More uses?

[OhmV-IR]

libcrypto isn't in vcpkg I believe, so that isn't an option at the moment

[OhmV-IR]

from the rpi fork of libcamera

[dg0yt]

libssl and libcrypto are binaries from openssl. So the picture confirms my guess: libgnutls or openssl.

[OhmV-IR]

libssl and libcrypto are binaries from openssl. So the picture confirms my guess: libgnutls or openssl.

yes, but in practice it doesn't work, tried on my vm and it refused to build without both present. Don't know why

[dg0yt]

There are several "auto" options. They may need explicit control to avoid installation order issues with binary artifacts.

[OhmV-IR]

the only auto options I'll leave is for the pipelines(since it just builds everything that's compatible with the target), and the android platform as generic

[OhmV-IR]

CI fail seems to be some sort of upstream server crash, is there a way to restart the pipeline on my end?

Trying to download meson-1.7.2.tar.gz using asset cache https://vcpkgassetcachewus.blob.core.windows.net/cache/91ddf5421f2808f9f011c2d7f5f2cf9767cf26128821251bae454fc9f36b986ec19d7713b0a938abaaa6300b7f9f06491a91da42080e3811f5271076669da400?*** SECRET ***
Download successful! Asset cache hit, did not try authoritative source https://github.com/mesonbuild/meson/archive/1.7.2.tar.gz
-- Applying patch /mnt/vcpkg-ci/installed/x64-linux/share/vcpkg-tool-meson/meson-intl.patch
-- Applying patch /mnt/vcpkg-ci/installed/x64-linux/share/vcpkg-tool-meson/adjust-python-dep.patch
-- Applying patch /mnt/vcpkg-ci/installed/x64-linux/share/vcpkg-tool-meson/adjust-args.patch
-- Applying patch /mnt/vcpkg-ci/installed/x64-linux/share/vcpkg-tool-meson/remove-freebsd-pcfile-specialization.patch
-- Found Python version '3.10.12 at /usr/bin/python3'
-- Using meson: /vcpkg/downloads/tools/meson-1.7.2-549ef7/meson.py
-- Fetching https://git.libcamera.org/libcamera/libcamera.git 058f589ae36170935e537910f2c303b1c3ea03b3...
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:127 (message):
    Command failed: /usr/bin/git fetch https://git.libcamera.org/libcamera/libcamera.git 058f589ae36170935e537910f2c303b1c3ea03b3 --depth 1 -n
    Working Directory: /vcpkg/downloads/git-tmp
    Error code: 128
    See logs for more information:
      /mnt/vcpkg-ci/b/libcamera/git-fetch-x64-linux-err.log

Call Stack (most recent call first):
  scripts/cmake/vcpkg_from_git.cmake:86 (vcpkg_execute_required_process)
  ports/libcamera/portfile.cmake:1 (vcpkg_from_git)
  scripts/ports.cmake:206 (include)