Traverse and analyze the dependency graph of a Nix package, and show what needs to be built or fetched in a tree representation.
There are 4 ways to use it:
# Use Nix 3 and flakes
drvgraph -3 github:StarryReverie/DrvGraph#packages.x86_64-linux.drvgraph
# Use Nix 2
drvgraph -2 . -A legacyPackages.x86_64-linux.drvgraph
# Use the derivation from the positional argument
drvgraph $(nix-instantiate . -A legacyPackages.x86_64-linux.drvgraph)
# Use the derivation from the pipe
nix-instantiate . -A legacyPackages.x86_64-linux.drvgraph | drvgraph An example output consisting of Existed, Unbuilt, Unsynced and Visited labels (--show-existed and --show-visited are used in this example):
$ drvgraph -3 github:StarryReverie/DrvGraph#packages.x86_64-linux.drvgraph --show-existed --show-visited
Unbuilt drvgraph-0.1.0.0 v9lkj73m drv:bvahy93k
├─ Existed megaparsec-9.7.0 090yz9cq
├─ Existed stm-containers-1.2.2 0hdza9fr
├─ Existed tasty-1.5.4 0kk3dccy
├─ Existed network-uri-2.6.4.2 3g89qbjx
├─ Existed tasty-hedgehog-1.4.0.2 5mfcrqx5
├─ Existed http-client-tls-0.3.6.4 6pvdkk97
├─ Existed dlist-1.0 6xlj8d8k
├─ Existed glibc-locales-2.42-84 7ymncw12
├─ Existed optparse-applicative-0.18.1.0 bg1jm1yz
├─ Existed ghc-9.10.3 c5j2gll8
├─ Existed async-2.2.6 cmw3zr16
├─ Existed stdenv-linux dp0zdsys
├─ Existed tasty-discover-5.0.2 gzj7xmaf
├─ Existed ansi-terminal-1.1.5 h503l4qj
├─ Unsynced remove-references-to hn6ncvlw
│ └─ Existed bash-5.3p15 svx59425
├─ Existed hedgehog-1.5 j6jb2ccj
├─ Existed optics-0.4.2.1 j9nm689r
├─ Existed file-embed-0.0.16.0 kirz6djy
├─ Existed unliftio-0.2.25.1 p6kxzyh6
├─ Existed http-client-0.7.19 pl5aim7z
├─ Existed hpack-0.38.3 s0ggvhaa
├─ Visited bash-5.3p15 svx59425
├─ Unsynced haskell-generic-builder-test-wrapper.sh vqpza2mw
│ └─ Visited bash-5.3p15 svx59425
├─ Existed tasty-hunit-0.10.2 w6zv4vx8
├─ Existed safe-exceptions-0.1.7.4 wl01awpc
├─ Existed http-types-0.12.4 x1a6i5mv
└─ Existed coreutils-9.11 xjl7p8dvNote that the result may differ, since some store paths may or may not exist.
This project has a dedicated Cachix substituter. It's highly recommended that you use the prebuilt cache, as manually building the package requires fetching GHC, which occupies a large amount of disk space.
You can add the substituter URL https://drvgraph.cachix.org/ to your configurations, along with the public key drvgraph.cachix.org-1:OngTuA0ekssxvRfZnRAvq1shmPRfJu3EO135RcbUvBg=.
Note that drvgraph.cachix.org depends on nix-community.cachix.org to avoid caching duplicated store paths. It's recommended to also add nix-community.cachix.org to your substituter lists to prevent unexpected cache miss.
This project is licensed under GPL-3.0-or-later for all Haskell source codes (./hs-packages/), MIT for Nix source code (./flake.nix, ./nix/), and CC-BY-SA-4.0 for documentation (./docs/).