aft/config.rs
1use std::collections::{HashMap, HashSet};
2use std::path::PathBuf;
3
4use serde::{Deserialize, Serialize};
5
6use crate::harness::Harness;
7
8/// Runtime configuration for the aft process.
9///
10/// Holds project-scoped settings and tuning knobs. Values are set at startup
11/// and remain immutable for the lifetime of the process.
12#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
13#[serde(rename_all = "snake_case")]
14pub enum SemanticBackend {
15 Fastembed,
16 #[serde(rename = "openai_compatible")]
17 OpenAiCompatible,
18 Ollama,
19}
20
21impl SemanticBackend {
22 pub const fn as_str(&self) -> &'static str {
23 match self {
24 Self::Fastembed => "fastembed",
25 Self::OpenAiCompatible => "openai_compatible",
26 Self::Ollama => "ollama",
27 }
28 }
29
30 pub fn from_name(name: &str) -> Option<Self> {
31 match name {
32 "fastembed" => Some(Self::Fastembed),
33 "openai_compatible" => Some(Self::OpenAiCompatible),
34 "ollama" => Some(Self::Ollama),
35 _ => None,
36 }
37 }
38}
39
40#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
41pub struct SemanticBackendConfig {
42 pub backend: SemanticBackend,
43 pub model: String,
44 pub base_url: Option<String>,
45 pub api_key_env: Option<String>,
46 pub timeout_ms: u64,
47 pub max_batch_size: usize,
48 /// Maximum number of project files to semantically index. Guards local
49 /// fastembed memory (model + embeddings + batch buffers) on huge project
50 /// roots; remote backends that embed server-side can raise it freely.
51 pub max_files: usize,
52}
53
54#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
55pub struct UserServerDef {
56 pub id: String,
57 pub extensions: Vec<String>,
58 pub binary: String,
59 pub args: Vec<String>,
60 pub root_markers: Vec<String>,
61 pub env: HashMap<String, String>,
62 pub initialization_options: Option<serde_json::Value>,
63 pub disabled: bool,
64}
65
66impl Default for SemanticBackendConfig {
67 fn default() -> Self {
68 Self {
69 backend: SemanticBackend::Fastembed,
70 model: DEFAULT_SEMANTIC_MODEL.to_string(),
71 base_url: None,
72 api_key_env: None,
73 // Keep the default below the plugin bridge timeout to avoid bridge-killed
74 // semantic_search requests when callers do not set an explicit timeout.
75 timeout_ms: 25_000,
76 max_batch_size: 64,
77 max_files: 20_000,
78 }
79 }
80}
81
82#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
83#[serde(default)]
84pub struct InspectConfig {
85 pub enabled: bool,
86}
87
88impl Default for InspectConfig {
89 fn default() -> Self {
90 Self { enabled: true }
91 }
92}
93
94#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
95#[serde(default)]
96pub struct BackupConfig {
97 pub enabled: Option<bool>,
98 pub max_depth: Option<usize>,
99 pub max_file_size: Option<u64>,
100}
101
102impl Default for BackupConfig {
103 fn default() -> Self {
104 Self {
105 enabled: Some(true),
106 max_depth: Some(crate::backup::DEFAULT_MAX_UNDO_DEPTH),
107 max_file_size: None,
108 }
109 }
110}
111
112pub const DEFAULT_SEMANTIC_MODEL: &str = "all-MiniLM-L6-v2";
113
114impl Config {
115 pub fn semantic_backend_label(&self) -> &'static str {
116 self.semantic.backend.as_str()
117 }
118}
119
120#[derive(Debug, Clone, Serialize, Deserialize)]
121#[serde(default)]
122pub struct Config {
123 /// Root directory of the project being analyzed. `None` if not scoped.
124 pub project_root: Option<PathBuf>,
125 /// How many levels of call-graph edges to follow during validation (default: 1).
126 pub validation_depth: u32,
127 /// Hours before a checkpoint expires and is eligible for cleanup (default: 24).
128 pub checkpoint_ttl_hours: u32,
129 /// Maximum depth for recursive symbol resolution (default: 10).
130 pub max_symbol_depth: u32,
131 /// Seconds before killing a formatter subprocess (default: 10).
132 pub formatter_timeout_secs: u32,
133 /// Seconds before killing a type-checker subprocess (default: 30).
134 pub type_checker_timeout_secs: u32,
135 /// Whether to auto-format files after edits (default: true).
136 pub format_on_edit: bool,
137 /// Whether to auto-validate files after edits (default: false).
138 /// When "syntax", only tree-sitter parse check. When "full", runs type checker.
139 pub validate_on_edit: Option<String>,
140 /// Per-language formatter overrides. Keys: "typescript", "python", "rust", "go".
141 /// Values: "biome", "oxfmt", "prettier", "deno", "ruff", "black", "rustfmt", "goimports", "gofmt", "none".
142 pub formatter: HashMap<String, String>,
143 /// Per-language type checker overrides. Keys: "typescript", "python", "rust", "go".
144 /// Values: "tsc", "tsgo", "biome", "pyright", "ruff", "cargo", "go", "staticcheck", "none".
145 pub checker: HashMap<String, String>,
146 /// Whether to restrict file operations to within `project_root` (default: false).
147 /// When true, write-capable commands reject paths outside the project root.
148 pub restrict_to_project_root: bool,
149 /// Enable the trigram search index (default: false).
150 pub search_index: bool,
151 /// Enable semantic search (default: false).
152 pub semantic_search: bool,
153 /// Whether the plugin registered the `aft_search` tool for this surface
154 /// (default: false). Forwarded by the plugin's resolved registration
155 /// predicate (semantic on + not minimal + not disabled). Used only to pick
156 /// the grep-rewrite footer: when true the footer steers to `aft_search`,
157 /// otherwise to the `grep` tool. Not a capability gate.
158 pub aft_search_registered: bool,
159 /// Enable the persisted callgraph store substrate (default: true).
160 pub callgraph_store: bool,
161 /// Number of files to parse in a single batch during callgraph store cold build (default: 100).
162 /// Lower values reduce peak memory during cold build.
163 /// Set to 0 to disable chunking and parse all files at once.
164 pub callgraph_chunk_size: usize,
165 /// Enable experimental bash command rewriting (default: false).
166 pub experimental_bash_rewrite: bool,
167 /// Enable experimental bash command compression (default: false).
168 pub experimental_bash_compress: bool,
169 /// Enable experimental bash background execution (default: false).
170 pub experimental_bash_background: bool,
171 /// Maximum number of background bash tasks allowed to run concurrently (default: 8).
172 pub max_background_bash_tasks: usize,
173 /// Emit reminders for long-running bash tasks (default: true).
174 pub bash_long_running_reminder_enabled: bool,
175 /// Milliseconds between long-running bash reminders (default: 10 minutes).
176 pub bash_long_running_reminder_interval_ms: u64,
177 /// Milliseconds to wait before a foreground bash task is promoted to background handling.
178 #[serde(skip, default = "default_foreground_wait_window_ms")]
179 pub foreground_wait_window_ms: u64,
180 /// Enable OpenCode-style bash permission prompts (default: false).
181 pub bash_permissions: bool,
182 /// Maximum file size to fully index in bytes (default: 1MB).
183 pub search_index_max_file_size: u64,
184 pub semantic: SemanticBackendConfig,
185 pub inspect: InspectConfig,
186 pub backup: BackupConfig,
187 /// Enable Astral ty as an experimental Python LSP server (default: false).
188 pub experimental_lsp_ty: bool,
189 /// User-defined LSP servers registered by the OpenCode plugin.
190 pub lsp_servers: Vec<UserServerDef>,
191 /// Lowercase LSP server IDs disabled by user config.
192 pub disabled_lsp: HashSet<String>,
193 /// Whether the system should request inline diagnostics after a tool call edits or writes a file.
194 #[serde(skip)]
195 pub diagnostics_on_edit: bool,
196 /// Extra directories to search when resolving LSP binaries.
197 /// The plugin populates these from its own auto-install cache (e.g.
198 /// `~/.cache/aft/lsp-packages/<pkg>/node_modules/.bin/`) so a binary AFT
199 /// installed itself is discoverable without needing it on PATH.
200 /// Resolution order: `<project_root>/node_modules/.bin/<bin>` →
201 /// `lsp_paths_extra/<bin>` (in order) → PATH via `which`.
202 pub lsp_paths_extra: Vec<PathBuf>,
203 /// Binary names the hosting plugin knows how to auto-install.
204 ///
205 /// Built-in LSPs discovered from files only emit missing-binary warnings
206 /// when their binary is in this set. User-configured `lsp_servers` keep
207 /// warning unconditionally.
208 pub lsp_auto_install_binaries: HashSet<String>,
209 /// Binary names with plugin-managed auto-installs currently in flight.
210 ///
211 /// Missing-binary warnings are suppressed while the install is actively
212 /// running; install failure reporting is handled by the plugin after the
213 /// background work settles.
214 pub lsp_inflight_installs: HashSet<String>,
215 /// Persistent storage directory for indexes (trigram, semantic).
216 /// Set by the plugin to the XDG-compliant path (e.g. ~/.local/share/opencode/storage/plugin/aft/).
217 /// Falls back to ~/.cache/aft/ if not set.
218 pub storage_dir: Option<PathBuf>,
219 /// Allow URL-fetch commands to access private network hosts.
220 /// Default false; hosting plugins only forward this from user-level config.
221 pub url_fetch_allow_private: bool,
222 /// Hosting harness identity supplied by configure.
223 #[serde(default)]
224 pub harness: Option<Harness>,
225 /// Maximum number of (server, file) entries kept in the in-memory
226 /// diagnostic cache. Older entries are evicted in LRU order when the
227 /// cap is exceeded. Set to 0 to disable the cap entirely.
228 /// Default: 5000 (covers very large monorepos with bounded memory).
229 pub diagnostic_cache_size: usize,
230}
231
232impl Default for Config {
233 fn default() -> Self {
234 Config {
235 project_root: None,
236 validation_depth: 1,
237 checkpoint_ttl_hours: 24,
238 max_symbol_depth: 10,
239 formatter_timeout_secs: 10,
240 type_checker_timeout_secs: 30,
241 // Default OFF: formatting after an edit can silently reflow the file
242 // under the agent (a formatter splitting/joining lines), staling the
243 // context for the next edit/patch. Agents that want formatting opt in
244 // via `format_on_edit: true`.
245 format_on_edit: false,
246 validate_on_edit: None,
247 formatter: HashMap::new(),
248 checker: HashMap::new(),
249 // Default to false to match OpenCode's existing permission-based model.
250 // The plugin opts into root restriction explicitly when desired.
251 restrict_to_project_root: false,
252 search_index: false,
253 semantic_search: false,
254 aft_search_registered: false,
255 callgraph_store: true,
256 callgraph_chunk_size: 100,
257 experimental_bash_rewrite: false,
258 experimental_bash_compress: false,
259 experimental_bash_background: false,
260 max_background_bash_tasks: 8,
261 bash_long_running_reminder_enabled: true,
262 bash_long_running_reminder_interval_ms: 600_000,
263 foreground_wait_window_ms: default_foreground_wait_window_ms(),
264 bash_permissions: false,
265 search_index_max_file_size: 1_048_576,
266 semantic: SemanticBackendConfig::default(),
267 inspect: InspectConfig::default(),
268 backup: BackupConfig::default(),
269 experimental_lsp_ty: false,
270 lsp_servers: Vec::new(),
271 disabled_lsp: HashSet::new(),
272 diagnostics_on_edit: false,
273 lsp_paths_extra: Vec::new(),
274 lsp_auto_install_binaries: HashSet::new(),
275 lsp_inflight_installs: HashSet::new(),
276 storage_dir: None,
277 url_fetch_allow_private: false,
278 harness: None,
279 diagnostic_cache_size: 5000,
280 }
281 }
282}
283
284fn default_foreground_wait_window_ms() -> u64 {
285 15_000
286}