nixos/home/hyprland/waybar/flakestat.sh

#!/usr/bin/env bash
set -eo pipefail

# Args:
# $1 text
# $2 tooltip
# $3 error-code
print_output() {
    local text="$1"
    local tooltip="$2"
    local error_code="$3"

    if [ -z "$error_code" ]; then
        output=$(jq -n \
            --arg text "$text" \
            --arg tooltip "$tooltip" \
            --unbuffered \
            --compact-output \
            '{text: $text, tooltip: $tooltip}')
    else
        output=$(jq -n \
            --arg text "$text" \
            --arg tooltip "$tooltip" \
            --unbuffered \
            --compact-output \
            '{text: $text, tooltip: $tooltip}')
    fi
    
    echo "$output"
}

FLAKE_DIR="/home/torjus/nixos"
NIXPKGS_DIR="/home/torjus/git/nixpkgs"

flake_metadata=$(nix flake metadata --json "$FLAKE_DIR" 2>/dev/null)

unstable_input=$(echo "$flake_metadata" | jq '.locks.nodes.root.inputs.nixpkgs')
unstable_rev=$(echo "$flake_metadata" | jq -r ".locks.nodes.$unstable_input.locked.rev")
unstable_branch=$(echo "$flake_metadata" | jq -r ".locks.nodes.$unstable_input.original.ref")

cd "$NIXPKGS_DIR" || print_output "?" "Could not find git repo dir" 1
if ! git fetch -q --all; then
    print_output "?" "Unable to fetch commits" 1
    exit 1
fi

if ! unstable_commit_count=$(git rev-list --count "$unstable_rev..origin/$unstable_branch"); then
    print_output "?" "Unable to list commits" 1
    exit 1
fi

text="$unstable_commit_count"
tooltip="${unstable_branch}: ${unstable_commit_count}"

print_output "$text" "$tooltip" 0