feat: git-reticulator — semantic lattice builder for git repos in AffineScript

Rust CLI + library for building semantic lattices from git repository structure.
AffineScript engine integration, REST API, PostgreSQL backing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.gitignore

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+# Rust build artifacts
+/target/
+Cargo.lock

Cargo.toml

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+[package]
+name = "git-reticulator"
+version = "0.1.0"
+edition = "2021"
+description = "Semantic lattice builder for git repositories in AffineScript"
+license = "PMPL-1.0-or-later"
+authors = ["Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>"]
+repository = "https://github.com/hyperpolymath/git-reticulator"
+readme = "README.md"
+
+[dependencies]
+# Core dependencies (always required)
+tokio = { version = "1.0", features = ["full"] }
+actix-web = "4.0"                     # REST API server
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+log = "0.4"
+env_logger = "0.10"
+clap = { version = "4.0", features = ["derive"] }
+
+# Optional dependencies (feature-gated)
+affinescript = { package = "affinescript-runtime", path = "../nextgen-languages/affinescript/runtime", optional = true }
+reqwest = { version = "0.12", features = ["json"], optional = true }
+git2 = { version = "0.19", optional = true }               # Git repo parsing
+postgres = { version = "0.19", features = ["with-uuid-1"], optional = true }
+tch = { version = "0.13", optional = true }                 # PyTorch embeddings
+
+[features]
+default = []
+affinescript-engine = ["affinescript"]     # AffineScript runtime integration
+git-integration = ["git2"]                # Git repository parsing
+db = ["postgres"]                         # PostgreSQL connectivity
+embeddings = ["tch"]                      # PyTorch-based embeddings
+http-client = ["reqwest"]                 # HTTP client for external calls
+full = ["affinescript-engine", "git-integration", "db", "embeddings", "http-client"]
+
+[dev-dependencies]
+criterion = "0.4"                     # For benchmarks
+
+[lib]
+name = "git_reticulator"
+path = "src/lib.rs"
+
+[[bin]]
+name = "reticulate"
+path = "src/cli/main.rs"

Justfile

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+# Justfile for Git-Reticulator orchestration
+
+DB_URL := "postgresql://hyper:password@localhost/git_reticulator"
+
+# Build all components
+build:
+    cargo build
+
+# Build the semantic lattice of the current repository
+reticulate repo_path=".":
+    cargo run -- build --repo {{repo_path}} --db {{DB_URL}}
+
+# Start the REST API server
+serve:
+    cargo run -- api --db {{DB_URL}}
+
+# Run a sample query to zoom into the auth module
+query-auth:
+    cargo run -- query --zoom "auth" --db {{DB_URL}}
+
+# Run tests (AffineScript and Rust)
+test:
+    cargo test
+    # Add AffineScript-specific tests if available
+    # as-test tests/lattice_tests.as
+
+# Clean up build artifacts
+clean:
+    cargo clean
+
+# Format code
+fmt:
+    cargo fmt --all
+
+# Check formatting without modifying
+fmt-check:
+    cargo fmt --all --check
+
+# Run panic-attacker pre-commit scan
+assail:
+    @command -v panic-attack >/dev/null 2>&1 && panic-attack assail . || echo "panic-attack not found — install from https://github.com/hyperpolymath/panic-attacker"

README.adoc

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+= git-reticulator
+:toc: preamble
+:icons: font
+
+

docs/setup.md

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+# Git-Reticulator: Database Setup
+
+To support topological queries and hierarchical LOD (Level of Detail) zooming, Git-Reticulator uses **PostgreSQL** with the **pgRouting** extension.
+
+## 🐘 Prerequisites
+- PostgreSQL 14+
+- PostGIS
+- pgRouting
+
+## 🛠️ Schema Initialization
+
+Run the following SQL to set up the semantic lattice environment:
+
+```sql
+-- Enable necessary extensions
+CREATE EXTENSION IF NOT EXISTS postgis;
+CREATE EXTENSION IF NOT EXISTS pgrouting;
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+-- 1. Keywords Table (Nodes in the Lattice)
+-- Stores semantic identities at multiple LOD levels.
+CREATE TABLE IF NOT EXISTS keywords (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name TEXT NOT NULL,
+    file_path TEXT NOT NULL,
+    level TEXT NOT NULL CHECK (level IN ('Module', 'File', 'Definition', 'Block')),
+    parent_id UUID REFERENCES keywords(id),
+    embedding VECTOR(1536), -- Optional: requires pgvector for semantic search
+    cluster TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE(name, file_path, level)
+);
+
+-- Index for hierarchical lookups (Zooming)
+CREATE INDEX idx_keywords_parent ON keywords(parent_id);
+CREATE INDEX idx_keywords_level ON keywords(level);
+
+-- 2. Relationships Table (Edges in the Lattice)
+-- Optimized for pgRouting topological queries.
+CREATE TABLE IF NOT EXISTS relationships (
+    id SERIAL PRIMARY KEY,
+    source_id UUID NOT NULL REFERENCES keywords(id),
+    target_id UUID NOT NULL REFERENCES keywords(id),
+    weight FLOAT DEFAULT 1.0,
+    rel_type TEXT NOT NULL, -- e.g., 'calls', 'contains', 'depends_on'
+    
+    -- pgRouting required columns for topology
+    source INTEGER,
+    target INTEGER,
+    cost FLOAT DEFAULT 1.0,
+    reverse_cost FLOAT DEFAULT -1.0 -- -1 means one-way
+);
+
+-- 3. Topology Generation
+-- After inserting relationships, run pgr_createTopology to populate source/target integers.
+-- This is handled by the Git-Reticulator storage engine.
+```
+
+## 🔍 Example pgRouting Query (Shortest Semantic Path)
+
+To find the most direct semantic relationship between two nodes:
+
+```sql
+SELECT * FROM pgr_dijkstra(
+    'SELECT id, source, target, cost FROM relationships',
+    1, -- Start node ID (integer)
+    50, -- End node ID (integer)
+    directed := true
+);
+```

src/api/app.rs

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+use crate::lattice::affine;
+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+use serde::{Deserialize, Serialize};
+
+#[derive(Deserialize)]
+pub struct BuildRequest {
+    pub repo: String,
+    pub db: String,
+}
+
+#[derive(Deserialize)]
+pub struct QueryRequest {
+    pub zoom: String,
+    pub db: String,
+}
+
+#[derive(Serialize)]
+pub struct ApiResponse {
+    pub status: String,
+    pub message: String,
+}
+
+#[post("/build")]
+async fn build_lattice(req: web::Json<BuildRequest>) -> impl Responder {
+    println!("🚀 API: Reticulating repo: {}", req.repo);
+    affine::build_lattice(&req.repo, &req.db);
+    HttpResponse::Ok().json(ApiResponse {
+        status: "success".to_string(),
+        message: format!("Lattice built for {}", req.repo),
+    })
+}
+
+#[get("/zoom/{node_id}")]
+async fn zoom_node(path: web::Path<String>, query: web::Query<QueryRequest>) -> impl Responder {
+    let node_id = path.into_inner();
+    println!("🔍 API: Zooming into node: {}", node_id);
+    affine::query_lattice(&node_id, &query.db);
+    HttpResponse::Ok().json(ApiResponse {
+        status: "success".to_string(),
+        message: format!("Zoomed into node {}", node_id),
+    })
+}
+
+#[get("/health")]
+async fn health() -> impl Responder {
+    HttpResponse::Ok().body("Git-Reticulator API is healthy.")
+}
+
+pub async fn start_server(db_uri: String) -> std::io::Result<()> {
+    println!("🌐 Git-Reticulator API starting on http://localhost:8080");
+
+    HttpServer::new(move || {
+        App::new()
+            .app_data(web::Data::new(db_uri.clone()))
+            .service(build_lattice)
+            .service(zoom_node)
+            .service(health)
+    })
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
+}

src/cli/main.rs

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+use clap::{Parser, Subcommand};
+use git_reticulator::lattice::affine;
+
+#[derive(Parser)]
+#[command(name = "reticulate")]
+#[command(about = "Git-Reticulator: Build and query semantic lattices from git repos", long_about = None)]
+struct Cli {
+    #[command(subcommand)]
+    command: Commands,
+}
+
+#[derive(Subcommand)]
+enum Commands {
+    /// Build a semantic lattice from a git repo
+    Build {
+        /// Path to the git repository
+        #[arg(short, long)]
+        repo: String,
+        /// PostgreSQL database URI
+        #[arg(short, long)]
+        db: String,
+    },
+    /// Query the lattice with a zoom level to minimize token cost
+    Query {
+        /// Semantic node or keyword to zoom into
+        #[arg(short, long)]
+        zoom: String,
+        /// PostgreSQL database URI
+        #[arg(short, long)]
+        db: String,
+    },
+    /// Start the REST API server for LLM integration
+    Api {
+        /// PostgreSQL database URI
+        #[arg(short, long)]
+        db: String,
+    },
+}
+
+#[tokio::main]
+async fn main() {
+    let cli = Cli::parse();
+    env_logger::init();
+
+    match &cli.command {
+        Commands::Build { repo, db } => {
+            println!("🚀 Starting reticulation process...");
+            affine::build_lattice(repo, db);
+            println!("✅ Semantic lattice built and stored.");
+        }
+        Commands::Query { zoom, db } => {
+            println!("🔍 Querying lattice for context: {}", zoom);
+            affine::query_lattice(zoom, db);
+        }
+        Commands::Api { db } => {
+            println!("🌐 Starting Git-Reticulator API on http://localhost:8080");
+            println!("Using database: {}", db);
+            git_reticulator::api::app::start_server(db.clone())
+                .await
+                .expect("Failed to start API server");
+        }
+    }
+}

src/lattice/affine/lattice.as

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+// Lattice builder in AffineScript
+// Implements Level-of-Detail (LOD) zooming logic to minimize LLM token cost.
+
+import models::{Lattice, Keyword, SemanticLevel, Relationship};
+
+@doc "Builds the semantic lattice of a Git repository."
+def build_lattice(repo_path: String, db_uri: String) -> Lattice {
+  // 1. Repository Ingestion
+  let repo = git2::Repository::open(repo_path).unwrap();
+  let files = repo.list_files();
+
+  // 2. Multilevel Keyword Extraction (Hierarchical Zooming)
+  // Extract keywords at different LOD levels
+  let keywords = files.flat_map(|file| {
+    [
+      extract_file_level_keyword(file),
+      extract_definition_level_keywords(file)
+    ].flatten()
+  });
+
+  // 3. Topological Relationship Discovery
+  // Preserves semantics: "login" -> "session" -> "database"
+  let relationships = build_relationships(keywords);
+
+  // 4. Persistence with pgRouting Topography
+  let storage = LatticeStorage::new(db_uri);
+  storage.store_keywords(keywords);
+  storage.store_relationships(relationships);
+
+  return Lattice { keywords, relationships };
+}
+
+@doc "Exposes a zoomed-in view of a semantic node to reduce LLM token noise."
+def zoom_to_node(node_id: UUID, target_level: SemanticLevel) -> Lattice {
+  // Queries pgRouting for children nodes at target_level
+  let children = storage.get_children(node_id, target_level);
+  let internal_edges = storage.get_edges_between(children);
+  
+  return Lattice { keywords: children, relationships: internal_edges };
+}

src/lattice/affine/models.as

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+// Data models for the Git-Reticulator semantic lattice.
+// Supports Hierarchical LOD (Level of Detail) to minimize LLM token cost.
+
+type SemanticLevel = 
+  | Module      // Root/Subsystem level
+  | File        // File-system object level
+  | Definition  // Class/Function/Constant level
+  | Block       // Granular logical/control-flow level
+
+type Keyword = {
+  name: String,
+  file: String,
+  level: SemanticLevel,
+  parent_id: Option<UUID>,    // For hierarchical "zooming"
+  embedding: Option<Vec<f64>>,
+  cluster: Option<String>
+}
+
+type Relationship = {
+  source_id: UUID,
+  target_id: UUID,
+  weight: f64,
+  rel_type: String            // e.g., "calls", "contains", "inherits", "depends_on"
+}
+
+type Lattice = {
+  keywords: Vec<Keyword>,
+  relationships: Vec<Relationship>
+}