os/programs/git-identity.nix
2024-11-16 23:25:49 +01:00

116 lines
2.5 KiB
Nix

{ pkgs, lib, config, specialArgs, options, modulesPath }:
with pkgs;
let
git-identity = (writeShellApplication {
name = "git-identity";
text = ''
#!/usr/bin/env bash
IFS=""
function print_menu() # selected_item, ...menu_items
{
local function_arguments=("''$@")
local selected_item="''$1"
local menu_items=("''${function_arguments[@]:1}")
local menu_size="''${#menu_items[@]}"
for (( i = 0; i < menu_size; ++i ))
do
if [ "''$i" = "''$selected_item" ]
then
echo -e "\033[1;34m > \033[0m\e[1m''${menu_items[i]}\033[0m"
else
echo " ''${menu_items[i]}"
fi
done
}
function run_menu() # selected_item, ...menu_items
{
local function_arguments=("''$@")
local selected_item="''$1"
local menu_items=("''${function_arguments[@]:1}")
local menu_size="''${#menu_items[@]}"
local menu_limit=''$((menu_size - 1))
print_menu "''$selected_item" "''${menu_items[@]}"
while read -rsn1 input
do
case "''$input"
in
''$'\x1B') # ESC ASCII code (https://dirask.com/posts/ASCII-Table-pJ3Y0j)
read -rsn1 -t 0.1 input
if [ "''$input" = "[" ] # occurs before arrow code
then
read -rsn1 -t 0.1 input
case "''$input"
in
A) # Up Arrow
if [ "''$selected_item" -ge 1 ]
then
selected_item=''$((selected_item - 1))
echo -en "\033[s\033[''${menu_size}A"
print_menu "''$selected_item" "''${menu_items[@]}"
echo -en "\033[u\033[0m"
fi
;;
B) # Down Arrow
if [ "''$selected_item" -lt "''$menu_limit" ]
then
selected_item=''$((selected_item + 1))
echo -en "\033[s\033[''${menu_size}A"
print_menu "''$selected_item" "''${menu_items[@]}"
echo -en "\033[u\033[0m"
fi
;;
esac
fi
read -rsn5 -t 0.1 # flushing stdin
;;
"") # Enter key
echo "enter key"
return "''$selected_item"
;;
esac
done
}
# Usage example:
selected_item=0
menu_items=("Stephan Stanisic <s.stanisic@student.uu.nl>"
"Stephan Stanisic <s.stanisic@ru.nl>"
"Stephan Stanisic <stephan@stanisic.nl>"
"Steph <steph+noreply@code.steph.tools>")
run_menu "''$selected_item" "''${menu_items[@]}"
menu_result="''$?"
echo
sel=''${menu_items[''$menu_result]}
name=''$(echo "''$sel" | cut -d \< -f 1 | head -c -2)
email=''$(echo "''$sel" | cut -d \< -f 2 | head -c -2)
echo "Setting username to ''$name and email to ''$email"
git config user.email "''$email"
git config user.name "''$name"
'';
});
in
{
environment.systemPackages = [ git-identity ];
}