diffctx 1.12.0

Selects the minimum code an LLM needs to review a git diff: walks the dependency graph outward from changed lines and stops when extra context stops paying for itself
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

use once_cell::sync::Lazy;

use super::env_overrides::read_env_fraction;

pub struct NeedsConfig {
    pub min_symbol_length: usize,
    pub background_min_ident_length: usize,

    pub definition_priority: f64,
    pub call_definition_priority: f64,
    pub signature_priority: f64,
    pub impact_priority: f64,
    pub invariant_priority: f64,
    pub test_priority: f64,
    pub background_priority: f64,
    pub concept_background_priority: f64,
    pub fallback_priority: f64,
    pub identifier_default_priority: f64,

    pub defines_scope_match: f64,
    pub defines_no_scope: f64,
    pub defines_other_scope: f64,
    pub impact_scope_match: f64,
    pub impact_mentions: f64,
    pub signature_defines: f64,
    pub test_mentions: f64,
    pub mentions_fallback: f64,

    pub min_rel_for_bonus: f64,
    pub relatedness_bonus: f64,
}

impl Default for NeedsConfig {
    fn default() -> Self {
        Self {
            min_symbol_length: 3,
            background_min_ident_length: 5,

            definition_priority: 0.9,
            call_definition_priority: 1.0,
            signature_priority: 0.7,
            impact_priority: 0.8,
            invariant_priority: 0.85,
            test_priority: 0.6,
            background_priority: 0.2,
            concept_background_priority: 0.3,
            fallback_priority: 0.5,
            identifier_default_priority: 0.5,

            defines_scope_match: 1.0,
            defines_no_scope: 0.5,
            defines_other_scope: 0.3,
            impact_scope_match: 0.15,
            impact_mentions: 0.8,
            signature_defines: 0.7,
            test_mentions: 0.6,
            mentions_fallback: 0.3,

            min_rel_for_bonus: read_env_fraction("DIFFCTX_MIN_REL_FOR_BONUS", 0.03),
            relatedness_bonus: read_env_fraction("DIFFCTX_RELATEDNESS_BONUS", 0.25),
        }
    }
}

pub static NEEDS: Lazy<NeedsConfig> = Lazy::new(NeedsConfig::default);