Provide a vcpkg argument to list the dependency tree of a package

[Firefly35]

It would be useful to be able to get the full dependency tree for a package, in either a "flat" string list (such as brew does with brew deps [package_name]) or a "tree" view (such as brew does with brew deps --tree [package_name]).

[dg0yt]

Did you try vcpkg depend-info?
It even has a --dot option.

[JackBoosY]

Please use ./vcpkg depend-info ${PORT_NAME} to show its dependency tree.

[Firefly35]

Thanks a lot, I don't know why I didn't figure it out while using the help.

[Firefly35]

The depend-info shows either forward or backward dependencies. I expected the command to provide only dependencies the ${PORT_NAME} relies on (for instance, vcpkg depend-info grpc shoud list protobuf, abseil and so on, but not the ports that depend on grpc). I need a command to get the ${PORT_NAME} dependencies list, not the list of the ports depending on ${PORT_NAME}

[dg0yt]

for instance, vcpkg depend-info grpc shoud list protobuf, abseil and so on, but not the ports that depend on grpc

I don't see a single port which depends on grpc:

$ ./vcpkg depend-info grpc
abseil: 
c-ares: 
openssl: 
protobuf: 
re2: 
upb: 
zlib: 
grpc: abseil, c-ares, openssl, protobuf, re2, upb, zlib

[Firefly35]

I used the grpc port as an example of the feature I expect. I could have used boost-detail for instance.
"depend-info" on boost-detail provides the dependencies in reverse order, with each sub-dependencies having its own dependency line and with some dependencies appearing twice or more (see boost-vcpkg-helpers below) :

./vcpkg depend-info boost-detail
boost-uninstall: 
boost-vcpkg-helpers: boost-uninstall
boost-compatibility: boost-vcpkg-helpers
boost-config: boost-compatibility, boost-vcpkg-helpers
boost-preprocessor: boost-vcpkg-helpers
boost-detail: boost-compatibility, boost-config, boost-preprocessor, boost-vcpkg-helpers

I expect to have the full flat dependency list with each dependency appearing only once for the package i.e. (an argument -flat to depend-info should be a good option) :

$ ./vcpkg depend-info -flat boost-detail
boost-compatibility, boost-config, boost-preprocessor, boost-vcpkg-helpers, boost-uninstall

A --tree argument could also output a text tree, such as the brew deps --tree does 👍🏻

brew deps --tree grpc
grpc
├── abseil
├── c-ares
├── [email protected]
├── protobuf
└── re2

[dg0yt]

Not a -flat option, but:

$ ./vcpkg depend-info --max-recurse=0 boost-detail
boost-detail: boost-compatibility, boost-config, boost-preprocessor, boost-vcpkg-helpers

(Missing recursion)

[dg0yt]

$./vcpkg install --dry-run boost-detail
...
(Missing installed packages)

Or rather:

$ ./vcpkg install --dry-run --x-install-root=/tmp/empty boost-detail
Computing installation plan...
The following packages will be built and installed:
  * boost-compatibility[core]:x64-mingw-dynamic -> 1.75.0
  * boost-config[core]:x64-mingw-dynamic -> 1.75.0
    boost-detail[core]:x64-mingw-dynamic -> 1.75.0
  * boost-preprocessor[core]:x64-mingw-dynamic -> 1.75.0
  * boost-uninstall[core]:x64-mingw-dynamic -> 1.75.0
  * boost-vcpkg-helpers[core]:x64-mingw-dynamic -> 7#2
Additional packages (*) will be modified to complete this operation.

(including features, triplets and versions)

[PhoebeHui]

This issue should be fixed in latest release.