semtree_core/
config.rs

1use serde::{Deserialize, Serialize};
2use std::path::Path;
3
4#[derive(Debug, Clone, Serialize, Deserialize, Default)]
5#[serde(rename_all = "lowercase")]
6pub enum EmbedBackend {
7    #[default]
8    Fastembed,
9    OpenAI,
10    Ollama,
11}
12
13#[derive(Debug, Clone, Serialize, Deserialize, Default)]
14#[serde(rename_all = "lowercase")]
15pub enum StoreBackend {
16    #[default]
17    Usearch,
18    Qdrant,
19}
20
21#[derive(Debug, Clone, Serialize, Deserialize, Default)]
22pub struct EmbedConfig {
23    #[serde(default)]
24    pub backend: EmbedBackend,
25    /// Model name - defaults depend on backend
26    pub model: Option<String>,
27    /// Base URL - for Ollama (default: http://localhost:11434)
28    pub url: Option<String>,
29    /// API key - falls back to OPENAI_API_KEY env var for openai backend
30    pub api_key: Option<String>,
31}
32
33#[derive(Debug, Clone, Serialize, Deserialize, Default)]
34pub struct StoreConfig {
35    #[serde(default)]
36    pub backend: StoreBackend,
37    /// Qdrant URL
38    pub url: Option<String>,
39    /// Qdrant collection name
40    pub collection: Option<String>,
41}
42
43#[derive(Debug, Clone, Serialize, Deserialize)]
44pub struct SemtreeConfig {
45    #[serde(default)]
46    pub embed: EmbedConfig,
47    #[serde(default)]
48    pub store: StoreConfig,
49    /// Where to store the local index
50    #[serde(default = "default_index_dir")]
51    pub index_dir: String,
52}
53
54// Manual `Default` so the no-config path (`SemtreeConfig::default()`) also gets
55// `.semtree`; a derived Default would leave `index_dir` empty and write the
56// index into the current directory.
57impl Default for SemtreeConfig {
58    fn default() -> Self {
59        Self {
60            embed: EmbedConfig::default(),
61            store: StoreConfig::default(),
62            index_dir: default_index_dir(),
63        }
64    }
65}
66
67fn default_index_dir() -> String {
68    ".semtree".to_string()
69}
70
71impl SemtreeConfig {
72    /// Load from `.semtree.toml` if present, otherwise use defaults.
73    pub fn load(dir: &Path) -> Self {
74        let path = dir.join(".semtree.toml");
75        if let Ok(raw) = std::fs::read_to_string(&path) {
76            toml::from_str(&raw).unwrap_or_else(|e| {
77                eprintln!("Warning: invalid .semtree.toml: {e}");
78                Self::default()
79            })
80        } else {
81            Self::default()
82        }
83    }
84
85    pub fn save(&self, dir: &Path) -> std::io::Result<()> {
86        let path = dir.join(".semtree.toml");
87        let raw = toml::to_string_pretty(self).expect("serializable");
88        std::fs::write(path, raw)
89    }
90}
semtree_core/config.rs

semtree_core/
config.rs
