OpenCV issue

[Vadim Maksimenko (vadimax)]

May anyone explain me why

1. git pull
2. vcpkg update
3. vcpkg upgrade --no-dry-run

deletes opencv/opencv4 from the library?

[General Jack O'Neill (StarGate-One)]

vcpkg upgrade --no-dry-run removes any port upgraded by PR changes and any dependent ports so it can recompile/link them with the new updates.

Say abseil is upgraded, vcpkg will remove protobuf and utf8-range because they depend on abseil being installed.

In addition since opencv4 depends on protobuf being installed it will remove opencv4.

Another example is if lzma is upgraded, port tiff is removed because it depends on lzma, resulting again opencv4 being removed because it depends on tiff.

Of course vcpkg takes this all into consideration and removes only the required ports needing rebuild and doing it in an order that needs only a single pass.

See the dependency list below for default features opencv4:

D:\vcpkg
->vcpkg depend-info opencv4
vcpkg-cmake:
vcpkg-cmake-config:
abseil: vcpkg-cmake, vcpkg-cmake-config
libjpeg-turbo: vcpkg-cmake, vcpkg-cmake-config
liblzma: vcpkg-cmake, vcpkg-cmake-config
zlib: vcpkg-cmake, vcpkg-cmake-config
utf8-range: abseil, vcpkg-cmake, vcpkg-cmake-config
flatbuffers: vcpkg-cmake, vcpkg-cmake-config
libpng: vcpkg-cmake, vcpkg-cmake-config, zlib
libwebp[libwebpmux, nearlossless, unicode, simd]: vcpkg-cmake, vcpkg-cmake-config
protobuf: abseil, utf8-range, vcpkg-cmake, vcpkg-cmake-config
quirc: vcpkg-cmake, vcpkg-cmake-config
tiff[jpeg, lzma, zip]: libjpeg-turbo, liblzma, vcpkg-cmake, vcpkg-cmake-config, zlib
vcpkg-get-python-packages:
opencv4[calib3d, fs, dshow, directml, dnn, gapi, highgui, intrinsics, jpeg, msmf, png, quirc, thread, tiff, webp, win32ui]: flatbuffers, libjpeg-turbo, libpng, libwebp, protobuf, quirc, tiff, vcpkg-cmake, vcpkg-cmake-config, vcpkg-get-python-packages, zlib

Doing a vcpkg upgrade without the --no-dry-run will give you a list of all the ports that will be removed and reinstalled due to the PRs updating vcpkg repo.

The more features added to opencv4 requires additional dependencies and as a result the greater chance opencv4 will need rebuilding each time you update your local repo of vcpkg from the main vcpkg repo.

A more comprehensive dependency list is as follows (you can remove the asterisk, an asterisk is a wildcard for all features, and put in the features you are actually using).

D:\vcpkg
->vcpkg depend-info opencv4[*]
warning: libdc1394 is only supported on '!windows', which does not match x64-windows. This usually means that there are known build failures, or runtime problems, when building other platforms. Proceeding anyway due to --allow-unsupported.
warning: opencv4[gtk] is only supported on '!windows & !osx & !ios & !android', which does not match x64-windows. This usually means that there are known build failures, or runtime problems, when building other platforms. Proceeding anyway due to --allow-unsupported.
warning: opencv4[v4l] is only supported on 'linux', which does not match x64-windows. This usually means that there are known build failures, or runtime problems, when building other platforms. Proceeding anyway due to --allow-unsupported.
vcpkg-cmake:
vcpkg-cmake-config:
vcpkg-cmake-get-vars: vcpkg-cmake
vcpkg-make: vcpkg-cmake-get-vars
zlib: vcpkg-cmake, vcpkg-cmake-config
libpng: vcpkg-cmake, vcpkg-cmake-config, zlib
libiconv: vcpkg-make
egl-registry:
brotli: vcpkg-cmake, vcpkg-cmake-config
bzip2[tool]: vcpkg-cmake
expat: vcpkg-cmake, vcpkg-cmake-config
freetype[brotli, bzip2, zlib, png]: brotli, bzip2, libpng, vcpkg-cmake, vcpkg-cmake-config, zlib
gettext-libintl: libiconv, vcpkg-make
opengl-registry: egl-registry
openssl: vcpkg-cmake, vcpkg-cmake-config, vcpkg-cmake-get-vars
vcpkg-tool-meson: vcpkg-cmake-get-vars
lz4: vcpkg-cmake, vcpkg-cmake-config
abseil: vcpkg-cmake, vcpkg-cmake-config
libjpeg-turbo: vcpkg-cmake, vcpkg-cmake-config
dirent:
gettext[tools]: gettext-libintl, libiconv
libffi: vcpkg-cmake-get-vars, vcpkg-make
pcre2[platform-default-features, jit]: vcpkg-cmake, vcpkg-cmake-config
icu[tools]: vcpkg-cmake-get-vars, vcpkg-make
pkgconf: vcpkg-tool-meson
libpq[lz4, openssl, zlib]: lz4, openssl, vcpkg-cmake-get-vars, vcpkg-tool-meson, zlib
libaec: vcpkg-cmake, vcpkg-cmake-config
md4c: vcpkg-cmake, vcpkg-cmake-config
gperf: vcpkg-make
sqlite3[json1, tool]: vcpkg-cmake, vcpkg-cmake-config
pthreads: vcpkg-cmake-config
zstd: vcpkg-cmake, vcpkg-cmake-config
opengl: opengl-registry
harfbuzz[freetype]: freetype, vcpkg-tool-meson
dbus: expat, vcpkg-cmake, vcpkg-cmake-config
double-conversion: vcpkg-cmake, vcpkg-cmake-config
fontconfig: dirent, expat, freetype, gperf, vcpkg-tool-meson
glib: dirent, gettext, gettext-libintl, libffi, libiconv, pcre2, vcpkg-tool-meson, zlib
vcpkg-pkgconfig-get-modules: pkgconf
pixman: libpng, pthreads, vcpkg-tool-meson
pthread: pthreads
gklib: vcpkg-cmake, vcpkg-cmake-config
openjph: vcpkg-cmake, vcpkg-cmake-config
liblzma: vcpkg-cmake, vcpkg-cmake-config
fmt: vcpkg-cmake, vcpkg-cmake-config
imath: vcpkg-cmake, vcpkg-cmake-config
libdeflate[gzip, compression, zlib, decompression]: vcpkg-cmake, vcpkg-cmake-config
hdf5[szip, hl, zlib]: libaec, vcpkg-cmake, vcpkg-cmake-config, zlib
jasper: libjpeg-turbo, vcpkg-cmake, vcpkg-cmake-config
lcms: vcpkg-tool-meson
qtbase[sql-sqlite, future, async-io, brotli, concurrent, freetype, jpeg, dbus, widgets, dnslookup, doubleconversion, gui, harfbuzz, icu, network, opengl, openssl, pcre2, png, sql-psql, sessionmanager, sql, testlib, thread, zstd]: brotli, dbus, double-conversion, freetype, harfbuzz, icu, libjpeg-turbo, libpng, libpq, md4c, opengl, openssl, pcre2, sqlite3, vcpkg-cmake, vcpkg-cmake-config, zlib, zstd
curl[non-http, ssl, sspi]: vcpkg-cmake, vcpkg-cmake-config, zlib
utf8-range: abseil, vcpkg-cmake, vcpkg-cmake-config
tinyxml2: vcpkg-cmake, vcpkg-cmake-config
utfcpp: vcpkg-cmake, vcpkg-cmake-config
vcpkg-msbuild: vcpkg-cmake-get-vars, vcpkg-pkgconfig-get-modules
libwebp[libwebpmux, nearlossless, unicode, simd]: vcpkg-cmake, vcpkg-cmake-config
giflib: vcpkg-cmake
jhasse-poly2tri: vcpkg-cmake, vcpkg-cmake-config
kubazip: vcpkg-cmake, vcpkg-cmake-config
minizip: vcpkg-cmake, vcpkg-cmake-config, vcpkg-cmake-get-vars, zlib
polyclipping: vcpkg-cmake, vcpkg-cmake-config
pugixml: vcpkg-cmake, vcpkg-cmake-config
rapidjson: vcpkg-cmake, vcpkg-cmake-config
stb:
openjpeg: vcpkg-cmake, vcpkg-cmake-config
openexr: imath, libdeflate, openjph, vcpkg-cmake, vcpkg-cmake-config
qtsvg: qtbase
atl:
tiff[jpeg, lzma, zip]: libjpeg-turbo, liblzma, vcpkg-cmake, vcpkg-cmake-config, zlib
cairo[fontconfig, freetype, gobject]: dirent, expat, fontconfig, freetype, glib, libpng, pixman, pthread, vcpkg-tool-meson, zlib
cereal: vcpkg-cmake, vcpkg-cmake-config
qtshadertools: qtbase
gflags: vcpkg-cmake, vcpkg-cmake-config
hwloc:
spdlog[fmt, tz-offset]: fmt, vcpkg-cmake, vcpkg-cmake-config
cgns[hdf5, lfs]: hdf5, vcpkg-cmake, vcpkg-cmake-config
libogg: vcpkg-cmake, vcpkg-cmake-config
fribidi: vcpkg-tool-meson
metis: gklib, vcpkg-cmake, vcpkg-cmake-config
netcdf-c[netcdf-4, dap, nczarr]: curl, hdf5, tinyxml2, vcpkg-cmake, vcpkg-cmake-config, zlib
nlohmann-json: vcpkg-cmake, vcpkg-cmake-config
protobuf: abseil, utf8-range, vcpkg-cmake, vcpkg-cmake-config
qtlanguageserver: qtbase
jxrlib: vcpkg-cmake
libraw: jasper, lcms, vcpkg-cmake, vcpkg-cmake-config, zlib
libxml2[iconv, zlib]: libiconv, vcpkg-cmake, vcpkg-cmake-config, zlib
glew: opengl, vcpkg-cmake, vcpkg-cmake-config
assimp: jhasse-poly2tri, kubazip, minizip, polyclipping, pugixml, rapidjson, stb, utfcpp, vcpkg-cmake, vcpkg-cmake-config, zlib
atk: gettext, gettext-libintl, glib, vcpkg-tool-meson
libusb: vcpkg-msbuild
eigen3: vcpkg-cmake, vcpkg-cmake-config
glog: gflags, vcpkg-cmake, vcpkg-cmake-config
flatbuffers: vcpkg-cmake, vcpkg-cmake-config
cuda:
pegtl: vcpkg-cmake, vcpkg-cmake-config
exprtk:
fast-float: vcpkg-cmake, vcpkg-cmake-config
ffmpeg-bin2c: vcpkg-cmake
level-zero: spdlog, vcpkg-cmake, vcpkg-cmake-config
qtdeclarative: qtbase, qtlanguageserver, qtshadertools, qtsvg
gl2ps: libpng, opengl, vcpkg-cmake, zlib
proj[net, tiff]: curl, nlohmann-json, sqlite3, tiff, vcpkg-cmake, vcpkg-cmake-config
pango: cairo, fontconfig, freetype, fribidi, gettext, gettext-libintl, glib, harfbuzz, vcpkg-tool-meson
libarchive[zstd, bzip2, xar, crypto, lz4, lzma]: bzip2, liblzma, lz4, openssl, vcpkg-cmake, zlib, zstd
seacas: cereal, cgns, fmt, hdf5, metis, netcdf-c, vcpkg-cmake, vcpkg-cmake-config, zlib
libharu: libpng, vcpkg-cmake, vcpkg-cmake-config, zlib
verdict: vcpkg-cmake, vcpkg-cmake-config
highway: vcpkg-cmake, vcpkg-cmake-config
llvm[enable-zstd, clang, default-targets, enable-terminfo, enable-bindings, enable-zlib, enable-rtti, lld, target-x86, tools]: atl, vcpkg-cmake, vcpkg-cmake-config, vcpkg-cmake-get-vars, zlib, zstd
libtheora: libogg, vcpkg-cmake, vcpkg-cmake-config
vtk-compile-tools: vcpkg-cmake, vcpkg-cmake-config
freeimage: imath, jxrlib, libjpeg-turbo, libpng, libraw, libwebp, openexr, openjpeg, tiff, vcpkg-cmake, vcpkg-cmake-config, zlib
libepoxy: vcpkg-tool-meson
imgui[freetype]: freetype, vcpkg-cmake, vcpkg-cmake-config
jsoncpp: vcpkg-cmake, vcpkg-cmake-config
sdl2: vcpkg-cmake, vcpkg-cmake-config
leptonica: giflib, libjpeg-turbo, libpng, libwebp, openjpeg, tiff, vcpkg-cmake, vcpkg-cmake-config, zlib
onnx: protobuf, vcpkg-cmake, vcpkg-cmake-config
opencl: vcpkg-cmake, vcpkg-cmake-config
snappy: vcpkg-cmake, vcpkg-cmake-config
tbb[hwloc]: hwloc, vcpkg-cmake, vcpkg-cmake-config
vcpkg-get-python-packages:
xbyak: vcpkg-cmake, vcpkg-cmake-config
gdk-pixbuf[jpeg, png, tiff]: gettext, gettext-libintl, glib, libjpeg-turbo, libpng, tiff, vcpkg-tool-meson
vcpkg-get-python:
aravis[usb]: glib, libusb, libxml2, vcpkg-tool-meson, zlib
cudnn: cuda
ffmpeg[avfilter, avdevice, avcodec, avformat, swresample, swscale]: ffmpeg-bin2c, vcpkg-cmake-get-vars, vcpkg-pkgconfig-get-modules
ceres: eigen3, glog, vcpkg-cmake, vcpkg-cmake-config
gtk3: atk, cairo, gdk-pixbuf, gettext, gettext-libintl, glib, libepoxy, pango, vcpkg-tool-meson
libdc1394: libusb
libjxl: brotli, highway, lcms, vcpkg-cmake
gdcm: expat, openjpeg, vcpkg-cmake, vcpkg-cmake-config, zlib
python3[extensions]: bzip2, expat, libffi, liblzma, openssl, sqlite3, vcpkg-get-python, vcpkg-msbuild, vcpkg-pkgconfig-get-modules, zlib
qt5compat[big-codecs, codecs, qml, textcodec]: qtbase, qtdeclarative
quirc: vcpkg-cmake, vcpkg-cmake-config
tesseract: curl, leptonica, libarchive, vcpkg-cmake, vcpkg-cmake-config
halide[target-x86]: llvm, vcpkg-cmake, vcpkg-cmake-config
openvino[auto, tensorflow-lite, auto-batch, cpu, gpu, npu, ir, hetero, onnx, paddle, pytorch, tensorflow]: flatbuffers, level-zero, nlohmann-json, onnx, opencl, protobuf, pugixml, rapidjson, snappy, tbb, vcpkg-cmake, vcpkg-cmake-config, vcpkg-get-python-packages, xbyak
gstreamer[plugins-base]: glib, vcpkg-tool-meson, zlib
ade: vcpkg-cmake, vcpkg-cmake-config
ogre[zip, assimp, freeimage, overlay]: assimp, freeimage, freetype, imgui, pugixml, sdl2, stb, vcpkg-cmake, vcpkg-cmake-config, zlib
vtk[cgns, proj, libharu, seacas, libtheora, netcdf, sql]: cgns, double-conversion, eigen3, expat, exprtk, fast-float, fmt, freetype, gl2ps, glew, hdf5, jsoncpp, libharu, libjpeg-turbo, liblzma, libpng, libtheora, libxml2, lz4, netcdf-c, nlohmann-json, pegtl, proj, pugixml, seacas, sqlite3, tiff, utfcpp, vcpkg-cmake, vcpkg-cmake-config, verdict, vtk-compile-tools, zlib
vulkan-headers: vcpkg-cmake, vcpkg-cmake-config
opencv4[openjpeg, calib3d, eigen, ade, aravis, openmp, carotene, tiff, contrib, opencl, msmf, gdcm, cuda, fs, openvino, dnn, cudnn, dc1394, hdf, directml, dnn-cuda, dshow, qt, highgui, ffmpeg, freetype, gapi, gstreamer, gtk, quality, halide, intrinsics, vtk, ipp, tbb, jpeg, python, jpegxl, vulkan, opengl, openexr, nonfree, ovis, png, quirc, rgbd, sfm, win32ui, text, v4l, thread, world, webp]: ade, aravis, ceres, cuda, cudnn, eigen3, ffmpeg, flatbuffers, freetype, gdcm, gflags, glog, gstreamer, gtk3, halide, harfbuzz, hdf5, libdc1394, libjpeg-turbo, libjxl, libpng, libwebp, ogre, opencl, openexr, opengl, openjpeg, openvino, protobuf, python3, qt5compat, qtbase, quirc, tbb, tesseract, tiff, vcpkg-cmake, vcpkg-cmake-config, vcpkg-get-python-packages, vtk, vulkan-headers, zlib

[Vadim Maksimenko (vadimax)]

Too many letters. But the question is still not answered: why anything removes packages that a user didn't ask to remove? A user has absolutely no interest in knowing what is going on inside, dependencies, etc. He has installed a package/library. The library is gone without user request/permission. Why? Who has decided that this behavior is acceptable?

For example, you go to a station to do some regular service for your vehicle. Some time later you take your vehicle just to discover that brake pad service has removed rear view mirrors. "WTF?!" will be your reaction, right?

[Osyotr (Osyotr)]

What answer do you expect without providing at least some info about the state of your installed tree prior to vcpkg upgrade? Not even mentioning the exact repro steps...