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#!/bin/sh -eu
# Idea condensed from https://github.com/Shopify/comma
program=$(basename "$0")
requires="$(command -V nix-index nix-locate nix-shell fzf | awk '{ print $1, $3 }' | column -t)"
help() {
printf \
"
Usage: %s [FLAGS]... [ARGUMENT]...
The wrapper $program shall search all nix
packages for a file and set up a nix shell for the
program that contains that file. The shell prints
all binaries in the package upon invocation.
Create and update the file database by running
the nix-index command. Warning: This command uses
up a large amount of memory.
nix-index --nixpkgs https://github.com/NixOS/nixpkgs/archive/master.tar.gz
Command List:
$program [ARGUMENT]... Search for packages using file name argument.
$program --help Show this help menu.
$program --check Check dependencies.
" "$program"
}
[ "${1:-}" = "--check" ] && printf '%s\n' "$requires" && exit
{ [ "${1:-}" = "-h" ] || [ "${1:-}" = "--help" ] || [ "$#" = 0 ]; } && help && exit
databasePath=${XDG_DATA_HOME:-~/.cache}/nix-index
nixLocate='nix-locate --db '"$databasePath"' -- '"${1:-}"
attributes=$($nixLocate | awk '{ print $1, $4 }' | sed 's|/nix/store/.[^-]*-||g')
attribute=$(printf '%s' "$attributes" | column --table | fzf | awk '{ print $1 }')
[ -z "$attribute" ] && exit
printf '\nsetting up shell with %s path...\n' "$attribute"
nix-shell --packages "$attribute" fish bat toybox --command \
'
home=$TMPDIR/nix-shell-tmp-home.r2np9PHrby
program=$(printf "%s" "$buildInputs" | cut --delimiter=" " --fields=1)
path=$(IFS=" " && for buildInput in $buildInputs; do printf "%s/bin " "$buildInput"; done | sed "s/ /:/g")
printf "\n";
{ [ -d "$program/bin" ] && ls "$program/bin"; } || printf "%s\n" "$program";
printf "\n";
tree -L 1 "$program";
printf "\n";
/usr/bin/env --ignore-environment /bin/sh -c \
"
export PATH=$path
export DISPLAY=$DISPLAY
export XAUTHORITY=$XAUTHORITY
export TERM=$TERM
export TERMINFO=$TERMINFO
export TERMINFO_DIRS=$TERMINFO_DIRS
export HOME=$home
export OUT=$program
export fish_greeting=
mkdir --parents $home
cd || exit 1
fish --init-command=\"
function fish_prompt; printf '"'nix-shell@$attribute $ '"'; end
set -U fish_color_normal B3B1AD
set -U fish_color_command 39BAE6
set -U fish_color_quote C2D94C
set -U fish_color_redirection FFEE99
set -U fish_color_end F29668
set -U fish_color_error FF3333
set -U fish_color_param 39BAE6
set -U fish_color_comment 626A73
set -U fish_color_match F07178
set -U fish_color_selection E6B450
set -U fish_color_search_match E6B450
set -U fish_color_history_current --bold
set -U fish_color_operator E6B450
set -U fish_color_escape 95E6CB
set -U fish_color_cwd 59C2FF
set -U fish_color_cwd_root red
set -U fish_color_valid_path --underline
set -U fish_color_autosuggestion aaaaaa
set -U fish_color_user brgreen
set -U fish_color_host normal
set -U fish_color_cancel -r
set -U fish_pager_color_completion normal
set -U fish_pager_color_description B3A06D yellow
set -U fish_pager_color_prefix white --bold --underline
set -U fish_pager_color_progress brwhite --background=cyan
\"
"
';
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