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Get nix executable dependencies required to run a shell command for a certain a time
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#! /usr/bin/env nix-shell | |
#! nix-shell -i sh -p coreutils findutils gnused ripgrep strace | |
# Usage ./get-command-nix-deps.sh ./script.sh 10s | |
timeout "$2" strace -qqfe execve sh -c "$1" 2>&1 >/dev/null | \ | |
rg '(/nix/store|/run/current-system/sw/bin)' | \ | |
sed -E 's=.*execve\("(\/.*)", \[.*=\1=g' | \ | |
xargs readlink -f | sort -u | \ | |
sed -E 's=/nix/store/[0-9a-z]*-(.*)-(.*)/.*/.*=\1 (\2)=g' | sort -u | |
# Example: | |
# Get the dependencies for command ls, let it run for 2s before killing it if it's not finished (using timeout). | |
# You'll unfortunatly get bash-interactive even for commands that don't use it. | |
# $ ./get-command-nix-deps.sh 'ls -lh' 2s | |
# bash-interactive-5.1 (p16) | |
# coreutils (9.0) | |
# $ ./get-command-nix-deps.sh 'curl --version' 2s | |
# bash-interactive-5.1 (p16) | |
# curl-7.83.1 (bin) | |
# $ ./get-command-nix-deps.sh 'systemctl status' 2s | |
# bash-interactive-5.1 (p16) | |
# systemd (250.4) |
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