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feat(lazygit): add AI commit message generation with lazycommit
Add new lazycommit script that generates Conventional Commit messages using OpenRouter API. Includes configuration for API key and model selection. Also add crush to shared packages and update gitignore with .crush pattern. The lazygit configuration now has a custom command (Ctrl+A) to trigger commit message generation from staged changes.
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‎.gitignore‎

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.sops.yaml
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.crush

‎home/programs/lazygit/default.nix‎

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# Lazygit is a simple terminal UI for git commands.
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{ config, lib, ... }:
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{ config, lib, pkgs, ... }:
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let
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accent = "#${config.lib.stylix.colors.base0D}";
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muted = "#${config.lib.stylix.colors.base03}";
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showBottomLine = true;
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nerdFontsVersion = "3";
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};
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# For the very lazy, with this you can generate a commit message :)
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customCommands = [{
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key = "<c-a>";
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description = "Generate AI commit message";
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command = "lazycommit";
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context = "files";
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output = "terminal";
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}];
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};
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};
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}

‎home/scripts/default.nix‎

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./screenshot
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./system
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./openvpn
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./lazycommit
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];
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}

‎home/scripts/lazycommit/default.nix‎

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{ pkgs, ... }:
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let
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lazycommit = pkgs.writeShellScriptBin "lazycommit"
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# bash
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''
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#!/usr/bin/env bash
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# Configurable settings
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CONFIG_DIR="$HOME/.config/lazycommit"
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CONFIG_FILE="$CONFIG_DIR/api_key"
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MODEL_FILE="$CONFIG_DIR/model"
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# OPENROUTER_MODEL="deepseek/deepseek-chat-v3-0324:free"
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# OPENROUTER_MODEL="meta-llama/llama-3.3-70b-instruct:free"
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OPENROUTER_MODEL="tngtech/deepseek-r1t-chimera:free"
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# OPENROUTER_MODEL="google/gemini-flash-1.5-8b"
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OPENROUTER_TEMPERATURE="0.7"
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# Function to save API key
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save_api_key() {
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mkdir -p "$CONFIG_DIR"
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echo "$1" > "$CONFIG_FILE"
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chmod 600 "$CONFIG_FILE"
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echo "✅ API key saved to $CONFIG_FILE"
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}
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get_api_key() {
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# First try environment variable
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if [[ -n "$OPENROUTER_API_KEY" ]]; then
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echo "$OPENROUTER_API_KEY"
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# Save to config for future use
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save_api_key "$OPENROUTER_API_KEY"
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return 0
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fi
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# Then try config file
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if [[ -f "$CONFIG_FILE" ]]; then
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API_KEY_FROM_FILE=$(cat "$CONFIG_FILE" | tr -d '[:space:]')
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if [[ -n "$API_KEY_FROM_FILE" ]]; then
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echo "$API_KEY_FROM_FILE" # This echoes the actual key
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return 0
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fi
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fi
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# No API key found
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echo "" # Echo empty string instead of just returning failure
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return 1
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}
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# Function to save model
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save_model() {
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mkdir -p "$CONFIG_DIR"
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echo "$1" > "$MODEL_FILE"
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chmod 600 "$MODEL_FILE"
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echo "✅ Model saved to $MODEL_FILE"
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}
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# Function to get model
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get_model() {
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if [[ -f "$MODEL_FILE" ]]; then
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cat "$MODEL_FILE"
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else
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echo "$OPENROUTER_MODEL"
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fi
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}
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# Parse command line arguments
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while [[ $# -gt 0 ]]; do
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case $1 in
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--api-key)
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if [[ -n "$2" && "$2" != -* ]]; then
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save_api_key "$2"
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shift 2
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else
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echo "❌ --api-key requires a valid API key"
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exit 1
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fi
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;;
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--model)
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if [[ -n "$2" && "$2" != -* ]]; then
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save_model "$2"
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shift 2
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else
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echo "❌ --model requires a valid model name"
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exit 1
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fi
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;;
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-h|--help)
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echo "Usage: lazycommit [options]"
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echo ""
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echo "Options:"
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echo " --api-key <key> Set api key"
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echo " --model <model> Set model (default: tngtech/deepseek-r1t-chimera:free)"
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echo " -h, --help Show this help message"
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echo ""
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echo "The API key can also be set via OPENROUTER_API_KEY environment variable."
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exit 0
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;;
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*)
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echo "❌ Unknown argument: $1"
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exit 1
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;;
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esac
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done
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# Get API key
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API_KEY=$(get_api_key)
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if [[ -z "$API_KEY" ]]; then # Check if the key is empty
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echo "❌ No OpenRouter API key found."
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echo " Set OPENROUTER_API_KEY environment variable"
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exit 1
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fi
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# Get model
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MODEL=$(get_model)
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# Check if we're in a git repository
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if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
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echo "❌ Not in a git repository"
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exit 1
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fi
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# Check if there are any staged changes
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if ! git diff --cached --quiet >/dev/null 2>&1; then
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# Get the diff of staged changes
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DIFF=$(git diff --cached)
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CHANGED_FILES="$(git diff --cached --name-only | tr '\n' ',' | sed 's/,$//' | sed 's/,/, /g')"
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else
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echo "❌ No staged changes found."
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echo " Please stage your changes first with: git add <files>"
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exit 1
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fi
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printf "\033[36m🤖 Generating commit message...\033[0m\n"
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printf "\033[90mUsing model: $MODEL\033[0m\n"
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SYSTEM_MESSAGE="You are an expert at writing Conventional Commit messages. Follow these rules strictly:
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FORMAT: <type>(<scope>): <subject>
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\n<BLANK LINE>
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\n<body>
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\n<BLANK LINE>
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\n<footer>
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TYPES:
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- feat: New feature
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- fix: Bug fix
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- docs: Documentation changes
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- style: Formatting, missing semicolons, etc (no code change)
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- refactor: Code refactoring (no behavior change)
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- perf: Performance improvements
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- test: Adding or updating tests
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- chore: Build process, tooling, or auxiliary changes
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RULES:
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- Use imperative mood: \"fix bug\" not \"fixed bug\"
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- Subject line must be 50 characters or less
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- Body should explain why the changes were made and what changed
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- Body should wrap at 72 characters
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- Breaking changes must start with BREAKING CHANGE: in footer
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The following files have changed: ''${CHANGED_FILES}.
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CRITICAL INSTRUCTIONS:
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- Generate ONLY ONE commit message that encapsulates ALL changes
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- Return ONLY the commit message and description, nothing else
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- No explanations, no apologies, no additional text
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- Format must be: subject line + blank line + body
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- Ensure there is exactly one blank line between subject and body
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Analyze the git diff and generate a proper Conventional Commit message."
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# Remove extra spaces and newlines (but preserve intentional line breaks for the format)
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SYSTEM_MESSAGE=$(echo "$SYSTEM_MESSAGE" | sed 's/ //g' | sed 's/^ *//;s/ *$//')
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JSON_DATA=$(jq -n \
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--arg model "$OPENROUTER_MODEL" \
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--arg system_message "$SYSTEM_MESSAGE" \
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--arg user_content "$DIFF" \
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--arg temperature "$OPENROUTER_TEMPERATURE" \
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'{
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model: $model,
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messages: [
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{role: "system", content: $system_message},
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{role: "user", content: $user_content}
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],
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temperature: ($temperature | tonumber)
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}')
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RESPONSE=$(curl -s -X POST "https://openrouter.ai/api/v1/chat/completions" \
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-H "Content-Type: application/json" \
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-H "Authorization: Bearer $API_KEY" \
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-d "$JSON_DATA")
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rm -f "$JSON_FILE"
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if [[ $CURL_EXIT_CODE -ne 0 ]]; then
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printf "\033[31m❌ API request failed with curl exit code: $CURL_EXIT_CODE\033[0m\n"
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echo "Response: $RESPONSE"
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exit 1
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fi
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if echo "$RESPONSE" | jq -e '.error' >/dev/null 2>&1; then
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ERROR_MESSAGE=$(echo "$RESPONSE" | jq -r '.error.message // .error' 2>/dev/null)
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printf "\033[31m❌ OpenRouter API error: $ERROR_MESSAGE\033[0m\n"
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echo "Full response: $RESPONSE"
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exit 1
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fi
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MESSAGE=$(echo "$RESPONSE" | jq -r '.choices[0].message.content // empty' | sed 's/^ *//;s/ *$//')
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if [[ -z "$MESSAGE" ]]; then
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printf "\033[31m❌ Failed to generate commit message\033[0m\n"
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echo "Response: $RESPONSE"
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exit 1
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fi
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# Clean up the message (remove markdown code blocks if present)
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MESSAGE=$(echo "$MESSAGE" | sed 's/^```.*//' | sed 's/^```$//' | sed '/^$/d')
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# printf "\033[32m✅ Generated commit message:\033[0m\n"
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# echo "---"
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# echo "$MESSAGE"
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# echo "---"
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# Use git's built-in editor with the AI message pre-filled
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git commit -e -m "$MESSAGE"
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'';
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in { home.packages = [ lazycommit ]; }

‎home/shared.nix‎

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lazydocker
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bruno # rest client
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bruno-cli # cli for bruno, needed for bruno.nvim
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crush
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# ranger # terminal file explorer
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# screenkey # shows keypresses on screen
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# textpieces # Manipulate texts

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