prikk-store 0.25.0

Prikk storage crate scaffold.
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156

use std::collections::BTreeMap;

use prikk_error::{PrikkError, Result};
use prikk_object::NodeId;

use crate::node_lifecycle::{LiveNode, NodeContent};
use crate::patch_replay::decode::{DecodedDeletePreimage, DecodedPatchOperation};
use crate::path::RepoPath;
use crate::text_span;

use super::*;

pub(super) fn apply_for_oracle(
    state: &mut NodeLifecycleState,
    operation: &DecodedPatchOperation,
) -> Result<()> {
    match &operation.kind {
        DecodedOperationKind::CreateFile { .. } => Err(PrikkError::Integrity(
            "oracle CreateFile application requires blob-kind evidence".to_string(),
        )),
        DecodedOperationKind::DeleteNode {
            path,
            node_id,
            preimage:
                DecodedDeletePreimage::File {
                    old_node_kind,
                    old_blob_id,
                    old_mode,
                },
        } => state
            .delete_node_checked(
                *node_id,
                &LiveNode {
                    path: RepoPath::parse(path)?,
                    kind: *old_node_kind,
                    content: NodeContent::File {
                        blob_id: *old_blob_id,
                        mode: *old_mode,
                    },
                },
            )
            .map(|_| ()),
        DecodedOperationKind::ChangePerm {
            node_id,
            old_mode,
            new_mode,
        } => state.change_file_mode(*node_id, *old_mode, *new_mode),
        DecodedOperationKind::ReplaceBinary {
            node_id,
            old_blob_id,
            new_blob_id,
        } => state.replace_file_blob(*node_id, *old_blob_id, *new_blob_id),
        _ => Err(PrikkError::Integrity(
            "oracle fixture does not support this operation kind".to_string(),
        )),
    }
}

pub(super) fn apply_for_oracle_with_evidence(
    state: &mut NodeLifecycleState,
    texts: &mut BTreeMap<NodeId, Vec<u8>>,
    evidence: &TestTextResolver,
    operation: &DecodedPatchOperation,
) -> Result<()> {
    match &operation.kind {
        DecodedOperationKind::CreateFile {
            path,
            node_id,
            blob_id,
            mode,
        } => {
            let blob_kind =
                match evidence.blob_kind(EvidenceScope::UnsealedCandidateOptional, *blob_id) {
                    Evidence::Known(kind) => kind,
                    _ => {
                        return Err(PrikkError::Integrity(
                            "missing oracle blob kind".to_string(),
                        ));
                    }
                };
            let node_kind = NodeKind::from_file_blob_kind(blob_kind)?;
            if node_kind == NodeKind::TextFile {
                let (kind, content) = match evidence
                    .blob_content(EvidenceScope::UnsealedCandidateOptional, *blob_id)
                {
                    Evidence::Known(content) => content,
                    _ => {
                        return Err(PrikkError::Integrity(
                            "missing oracle text blob content".to_string(),
                        ));
                    }
                };
                if kind != BlobKind::Text {
                    return Err(PrikkError::Integrity(
                        "oracle text create has non-text content".to_string(),
                    ));
                }
                texts.insert(*node_id, content);
            }
            state.create_node(
                *node_id,
                LiveNode {
                    path: RepoPath::parse(path)?,
                    kind: node_kind,
                    content: NodeContent::File {
                        blob_id: *blob_id,
                        mode: *mode,
                    },
                },
            )
        }
        DecodedOperationKind::EditText { .. } => {
            apply_for_oracle_with_text(state, texts, operation)
        }
        _ => apply_for_oracle(state, operation),
    }
}

pub(super) fn apply_for_oracle_with_text(
    state: &mut NodeLifecycleState,
    texts: &mut BTreeMap<NodeId, Vec<u8>>,
    operation: &DecodedPatchOperation,
) -> Result<()> {
    match &operation.kind {
        DecodedOperationKind::EditText {
            node_id,
            span_id,
            old_span_hash,
            left_anchor_hash,
            right_anchor_hash,
            replacement_text,
            old_span_text,
        } => {
            let current_text = texts
                .get(node_id)
                .cloned()
                .ok_or_else(|| PrikkError::Integrity("missing oracle text content".to_string()))?;
            let (start, end) = text_span::locate_text_span(
                &current_text,
                old_span_text,
                left_anchor_hash,
                right_anchor_hash,
                span_id,
                *node_id,
                old_span_hash,
            )
            .map_err(|err| PrikkError::Integrity(err.to_string()))?;
            let new_text = text_span::splice_text(&current_text, start, end, replacement_text)
                .map_err(|err| PrikkError::Integrity(err.to_string()))?;
            state.set_text_blob(*node_id, text_span::text_blob_id(&new_text)?)?;
            texts.insert(*node_id, new_text);
            Ok(())
        }
        _ => apply_for_oracle(state, operation),
    }
}