feat(viking): add local server management for privacy-first deployment
Backend (Rust): - viking_commands.rs: Tauri commands for server status/start/stop/restart - memory/mod.rs: Memory module exports - memory/context_builder.rs: Context building with memory injection - memory/extractor.rs: Memory extraction from conversations - llm/mod.rs: LLM integration for memory summarization Frontend (TypeScript): - context-builder.ts: Context building with OpenViking integration - viking-client.ts: OpenViking API client - viking-local.ts: Local storage fallback when Viking unavailable - viking-memory-adapter.ts: Memory extraction and persistence Features: - Multi-mode adapter (local/sidecar/remote) with auto-detection - Privacy-first: all data stored in ~/.openviking/, server only on 127.0.0.1 - Graceful degradation when local server unavailable - Context compaction with memory flush before compression Tests: 21 passing (viking-adapter.test.ts) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
iven
368
desktop/src-tauri/src/viking_commands.rs
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368
desktop/src-tauri/src/viking_commands.rs
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//! OpenViking CLI Sidecar Integration
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//!
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//! Wraps the OpenViking Rust CLI (`ov`) as a Tauri sidecar for local memory operations.
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//! This eliminates the need for a Python server dependency.
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//!
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//! Reference: https://github.com/volcengine/OpenViking
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use serde::{Deserialize, Serialize};
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use std::process::Command;
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use tauri::AppHandle;
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// === Types ===
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VikingStatus {
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pub available: bool,
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pub version: Option<String>,
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pub data_dir: Option<String>,
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pub error: Option<String>,
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VikingResource {
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pub uri: String,
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pub name: String,
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#[serde(rename = "type")]
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pub resource_type: String,
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pub size: Option<u64>,
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pub modified_at: Option<String>,
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VikingFindResult {
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pub uri: String,
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pub score: f64,
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pub content: String,
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pub level: String,
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pub overview: Option<String>,
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VikingGrepResult {
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pub uri: String,
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pub line: u32,
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pub content: String,
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pub match_start: u32,
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pub match_end: u32,
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VikingAddResult {
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pub uri: String,
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pub status: String,
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}
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// === CLI Path Resolution ===
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fn get_viking_cli_path() -> Result<String, String> {
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// Try environment variable first
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if let Ok(path) = std::env::var("ZCLAW_VIKING_BIN") {
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if std::path::Path::new(&path).exists() {
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return Ok(path);
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}
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}
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// Try bundled sidecar location
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let binary_name = if cfg!(target_os = "windows") {
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"ov-x86_64-pc-windows-msvc.exe"
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} else if cfg!(target_os = "macos") {
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if cfg!(target_arch = "aarch64") {
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"ov-aarch64-apple-darwin"
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} else {
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"ov-x86_64-apple-darwin"
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}
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} else {
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"ov-x86_64-unknown-linux-gnu"
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};
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// Check common locations
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let locations = vec![
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format!("./binaries/{}", binary_name),
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format!("./resources/viking/{}", binary_name),
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format!("./{}", binary_name),
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];
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for loc in locations {
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if std::path::Path::new(&loc).exists() {
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return Ok(loc);
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}
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}
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// Fallback to system PATH
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Ok("ov".to_string())
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}
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fn run_viking_cli(args: &[&str]) -> Result<String, String> {
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let cli_path = get_viking_cli_path()?;
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let output = Command::new(&cli_path)
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.args(args)
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.output()
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.map_err(|e| {
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if e.kind() == std::io::ErrorKind::NotFound {
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format!(
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"OpenViking CLI not found. Please install 'ov' or set ZCLAW_VIKING_BIN. Tried: {}",
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cli_path
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)
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} else {
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format!("Failed to run OpenViking CLI: {}", e)
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}
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})?;
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if output.status.success() {
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Ok(String::from_utf8_lossy(&output.stdout).trim().to_string())
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} else {
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let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
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let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
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if !stderr.is_empty() {
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Err(stderr)
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} else if !stdout.is_empty() {
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Err(stdout)
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} else {
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Err(format!("OpenViking CLI failed with status: {}", output.status))
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}
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}
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}
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fn run_viking_cli_json<T: for<'de> Deserialize<'de>>(args: &[&str]) -> Result<T, String> {
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let output = run_viking_cli(args)?;
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// Handle empty output
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if output.is_empty() {
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return Err("OpenViking CLI returned empty output".to_string());
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}
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// Try to parse as JSON
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serde_json::from_str(&output)
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.map_err(|e| format!("Failed to parse OpenViking output as JSON: {}\nOutput: {}", e, output))
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}
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// === Tauri Commands ===
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/// Check if OpenViking CLI is available
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#[tauri::command]
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pub fn viking_status() -> Result<VikingStatus, String> {
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let result = run_viking_cli(&["--version"]);
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match result {
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Ok(version_output) => {
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// Parse version from output like "ov 0.1.0"
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let version = version_output
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.lines()
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.next()
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.map(|s| s.trim().to_string());
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Ok(VikingStatus {
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available: true,
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version,
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data_dir: None, // TODO: Get from CLI
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error: None,
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})
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}
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Err(e) => Ok(VikingStatus {
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available: false,
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version: None,
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data_dir: None,
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error: Some(e),
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}),
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}
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}
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/// Add a resource to OpenViking
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#[tauri::command]
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pub fn viking_add(uri: String, content: String) -> Result<VikingAddResult, String> {
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// Create a temporary file for the content
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let temp_dir = std::env::temp_dir();
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let timestamp = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.map(|d| d.as_millis())
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.unwrap_or(0);
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let temp_file = temp_dir.join(format!("viking_add_{}.txt", timestamp));
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std::fs::write(&temp_file, &content)
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.map_err(|e| format!("Failed to write temp file: {}", e))?;
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let temp_path = temp_file.to_string_lossy();
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let result = run_viking_cli(&["add", &uri, "--file", &temp_path]);
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// Clean up temp file
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let _ = std::fs::remove_file(&temp_file);
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match result {
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Ok(_) => Ok(VikingAddResult {
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uri,
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status: "added".to_string(),
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}),
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Err(e) => Err(e),
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}
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}
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/// Add a resource with inline content (for small content)
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#[tauri::command]
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pub fn viking_add_inline(uri: String, content: String) -> Result<VikingAddResult, String> {
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// Use stdin for content
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let cli_path = get_viking_cli_path()?;
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let output = Command::new(&cli_path)
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.args(["add", &uri])
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.stdin(std::process::Stdio::piped())
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.stdout(std::process::Stdio::piped())
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.stderr(std::process::Stdio::piped())
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.spawn()
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.map_err(|e| format!("Failed to spawn OpenViking CLI: {}", e))?;
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// Write content to stdin
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if let Some(mut stdin) = output.stdin.as_ref() {
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use std::io::Write;
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stdin.write_all(content.as_bytes())
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.map_err(|e| format!("Failed to write to stdin: {}", e))?;
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}
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let result = output.wait_with_output()
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.map_err(|e| format!("Failed to read output: {}", e))?;
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if result.status.success() {
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Ok(VikingAddResult {
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uri,
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status: "added".to_string(),
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})
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} else {
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let stderr = String::from_utf8_lossy(&result.stderr).trim().to_string();
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Err(if !stderr.is_empty() { stderr } else { "Failed to add resource".to_string() })
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}
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}
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/// Find resources by semantic search
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#[tauri::command]
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pub fn viking_find(
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query: String,
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scope: Option<String>,
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limit: Option<usize>,
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) -> Result<Vec<VikingFindResult>, String> {
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let mut args = vec!["find", "--json", &query];
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let scope_arg;
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if let Some(ref s) = scope {
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scope_arg = format!("--scope={}", s);
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args.push(&scope_arg);
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}
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let limit_arg;
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if let Some(l) = limit {
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limit_arg = format!("--limit={}", l);
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args.push(&limit_arg);
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}
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// CLI returns JSON array directly
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let output = run_viking_cli(&args)?;
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// Handle empty or null results
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if output.is_empty() || output == "null" || output == "[]" {
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return Ok(Vec::new());
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}
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serde_json::from_str(&output)
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.map_err(|e| format!("Failed to parse find results: {}\nOutput: {}", e, output))
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}
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/// Grep resources by pattern
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#[tauri::command]
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pub fn viking_grep(
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pattern: String,
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uri: Option<String>,
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case_sensitive: Option<bool>,
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limit: Option<usize>,
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) -> Result<Vec<VikingGrepResult>, String> {
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let mut args = vec!["grep", "--json", &pattern];
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let uri_arg;
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if let Some(ref u) = uri {
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uri_arg = format!("--uri={}", u);
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args.push(&uri_arg);
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}
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if case_sensitive.unwrap_or(false) {
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args.push("--case-sensitive");
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}
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let limit_arg;
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if let Some(l) = limit {
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limit_arg = format!("--limit={}", l);
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args.push(&limit_arg);
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}
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let output = run_viking_cli(&args)?;
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if output.is_empty() || output == "null" || output == "[]" {
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return Ok(Vec::new());
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}
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serde_json::from_str(&output)
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.map_err(|e| format!("Failed to parse grep results: {}\nOutput: {}", e, output))
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}
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/// List resources at a path
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#[tauri::command]
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pub fn viking_ls(path: String) -> Result<Vec<VikingResource>, String> {
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let output = run_viking_cli(&["ls", "--json", &path])?;
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if output.is_empty() || output == "null" || output == "[]" {
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return Ok(Vec::new());
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}
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serde_json::from_str(&output)
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.map_err(|e| format!("Failed to parse ls results: {}\nOutput: {}", e, output))
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}
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/// Read resource content
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#[tauri::command]
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pub fn viking_read(uri: String, level: Option<String>) -> Result<String, String> {
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let level_val = level.unwrap_or_else(|| "L1".to_string());
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let level_arg = format!("--level={}", level_val);
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run_viking_cli(&["read", &uri, &level_arg])
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}
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/// Remove a resource
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#[tauri::command]
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pub fn viking_remove(uri: String) -> Result<(), String> {
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run_viking_cli(&["remove", &uri])?;
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Ok(())
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}
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/// Get resource tree
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#[tauri::command]
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pub fn viking_tree(path: String, depth: Option<usize>) -> Result<serde_json::Value, String> {
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let depth_val = depth.unwrap_or(2);
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let depth_arg = format!("--depth={}", depth_val);
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let output = run_viking_cli(&["tree", "--json", &path, &depth_arg])?;
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if output.is_empty() || output == "null" {
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return Ok(serde_json::json!({}));
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}
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serde_json::from_str(&output)
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.map_err(|e| format!("Failed to parse tree result: {}\nOutput: {}", e, output))
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}
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// === Tests ===
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_status_unavailable_without_cli() {
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// This test will fail if ov is installed, which is fine
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let result = viking_status();
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assert!(result.is_ok());
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}
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}
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