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| 1 | +use anyhow::Result; |
| 2 | +use lazy_static::lazy_static; |
| 3 | +use regex::Regex; |
| 4 | + |
| 5 | +lazy_static! { |
| 6 | + static ref PUBLIC_GENERATOR_PARSER: Regex = Regex::new(r"(?m)^(.+)://(.+)$").unwrap(); |
| 7 | + static ref LOCAL_GENERATOR_PARSER: Regex = |
| 8 | + Regex::new(r"(?m)^(.+)://(.+)@([^:]+):?(\d+)?$").unwrap(); |
| 9 | +} |
| 10 | + |
| 11 | +#[derive(Default)] |
| 12 | +pub struct Options { |
| 13 | + pub type_name: String, |
| 14 | + pub model_name: String, |
| 15 | + pub context_window: u32, |
| 16 | + pub host: String, |
| 17 | + pub port: u16, |
| 18 | +} |
| 19 | + |
| 20 | +impl Options { |
| 21 | + pub fn parse(raw: &str, context_window: u32) -> Result<Self> { |
| 22 | + let raw = raw.trim().trim_matches(|c| c == '"' || c == '\''); |
| 23 | + if raw.is_empty() { |
| 24 | + return Err(anyhow!("generator string can't be empty")); |
| 25 | + } |
| 26 | + |
| 27 | + let mut generator = Options { |
| 28 | + context_window, |
| 29 | + ..Default::default() |
| 30 | + }; |
| 31 | + |
| 32 | + if raw.contains('@') { |
| 33 | + let caps = if let Some(caps) = LOCAL_GENERATOR_PARSER.captures_iter(raw).next() { |
| 34 | + caps |
| 35 | + } else { |
| 36 | + return Err(anyhow!("can't parse '{raw}' generator string")); |
| 37 | + }; |
| 38 | + |
| 39 | + if caps.len() != 5 { |
| 40 | + return Err(anyhow!( |
| 41 | + "can't parse {raw} generator string ({} captures instead of 5): {:?}", |
| 42 | + caps.len(), |
| 43 | + caps, |
| 44 | + )); |
| 45 | + } |
| 46 | + |
| 47 | + caps.get(1) |
| 48 | + .unwrap() |
| 49 | + .as_str() |
| 50 | + .clone_into(&mut generator.type_name); |
| 51 | + caps.get(2) |
| 52 | + .unwrap() |
| 53 | + .as_str() |
| 54 | + .clone_into(&mut generator.model_name); |
| 55 | + caps.get(3) |
| 56 | + .unwrap() |
| 57 | + .as_str() |
| 58 | + .clone_into(&mut generator.host); |
| 59 | + generator.port = if let Some(port) = caps.get(4) { |
| 60 | + port.as_str().parse::<u16>().unwrap() |
| 61 | + } else { |
| 62 | + 0 |
| 63 | + }; |
| 64 | + } else { |
| 65 | + let caps = if let Some(caps) = PUBLIC_GENERATOR_PARSER.captures_iter(raw).next() { |
| 66 | + caps |
| 67 | + } else { |
| 68 | + return Err(anyhow!( |
| 69 | + "can't parse {raw} generator string, invalid expression" |
| 70 | + )); |
| 71 | + }; |
| 72 | + |
| 73 | + if caps.len() != 3 { |
| 74 | + return Err(anyhow!( |
| 75 | + "can't parse {raw} generator string, expected 3 captures, got {}", |
| 76 | + caps.len() |
| 77 | + )); |
| 78 | + } |
| 79 | + |
| 80 | + caps.get(1) |
| 81 | + .unwrap() |
| 82 | + .as_str() |
| 83 | + .clone_into(&mut generator.type_name); |
| 84 | + caps.get(2) |
| 85 | + .unwrap() |
| 86 | + .as_str() |
| 87 | + .clone_into(&mut generator.model_name); |
| 88 | + } |
| 89 | + |
| 90 | + Ok(generator) |
| 91 | + } |
| 92 | +} |
| 93 | + |
| 94 | +#[cfg(test)] |
| 95 | +mod tests { |
| 96 | + use super::Options; |
| 97 | + |
| 98 | + #[test] |
| 99 | + fn test_wont_parse_invalid_generator() { |
| 100 | + assert!(Options::parse("not a valid generator", 123).is_err()); |
| 101 | + } |
| 102 | + |
| 103 | + #[test] |
| 104 | + fn test_parse_local_generator_full() { |
| 105 | + let ret = Options::parse("ollama://llama3@localhost:11434", 123).unwrap(); |
| 106 | + |
| 107 | + assert_eq!(ret.type_name, "ollama"); |
| 108 | + assert_eq!(ret.model_name, "llama3"); |
| 109 | + assert_eq!(ret.host, "localhost"); |
| 110 | + assert_eq!(ret.port, 11434); |
| 111 | + assert_eq!(ret.context_window, 123); |
| 112 | + } |
| 113 | + |
| 114 | + #[test] |
| 115 | + fn test_parse_local_generator_without_port() { |
| 116 | + let ret = Options::parse("ollama://llama3@localhost", 123).unwrap(); |
| 117 | + |
| 118 | + assert_eq!(ret.type_name, "ollama"); |
| 119 | + assert_eq!(ret.model_name, "llama3"); |
| 120 | + assert_eq!(ret.host, "localhost"); |
| 121 | + assert_eq!(ret.port, 0); |
| 122 | + assert_eq!(ret.context_window, 123); |
| 123 | + } |
| 124 | + |
| 125 | + #[test] |
| 126 | + fn test_parse_public_generator() { |
| 127 | + let ret = Options::parse("groq://llama3", 123).unwrap(); |
| 128 | + |
| 129 | + assert_eq!(ret.type_name, "groq"); |
| 130 | + assert_eq!(ret.model_name, "llama3"); |
| 131 | + assert_eq!(ret.host, ""); |
| 132 | + assert_eq!(ret.port, 0); |
| 133 | + assert_eq!(ret.context_window, 123); |
| 134 | + } |
| 135 | +} |
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