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
|
//! Implements builtins used to import paths in the store.
use futures::pin_mut;
use std::path::Path;
use tvix_eval::{
builtin_macros::builtins,
generators::{self, GenCo},
ErrorKind, Value,
};
use std::rc::Rc;
async fn filtered_ingest(
state: Rc<TvixStoreIO>,
co: GenCo,
path: &Path,
filter: Option<&Value>,
) -> Result<tvix_castore::proto::node::Node, ErrorKind> {
let mut entries_per_depths: Vec<Vec<walkdir::DirEntry>> = vec![Vec::new()];
let mut it = walkdir::WalkDir::new(path)
.follow_links(false)
.follow_root_links(false)
.contents_first(false)
.sort_by_file_name()
.into_iter();
// Skip root node.
entries_per_depths[0].push(
it.next()
.ok_or_else(|| ErrorKind::IO {
path: Some(path.to_path_buf()),
error: std::io::Error::new(std::io::ErrorKind::NotFound, "No root node emitted")
.into(),
})?
.map_err(|err| ErrorKind::IO {
path: Some(path.to_path_buf()),
error: std::io::Error::from(err).into(),
})?,
);
while let Some(entry) = it.next() {
// Entry could be a NotFound, if the root path specified does not exist.
let entry = entry.map_err(|err| ErrorKind::IO {
path: err.path().map(|p| p.to_path_buf()),
error: std::io::Error::from(err).into(),
})?;
// As per Nix documentation `:doc builtins.filterSource`.
let file_type = if entry.file_type().is_dir() {
"directory"
} else if entry.file_type().is_file() {
"regular"
} else if entry.file_type().is_symlink() {
"symlink"
} else {
"unknown"
};
let should_keep: bool = if let Some(filter) = filter {
generators::request_force(
&co,
generators::request_call_with(
&co,
filter.clone(),
[
Value::String(entry.path().as_os_str().as_encoded_bytes().into()),
Value::String(file_type.into()),
],
)
.await,
)
.await
.as_bool()?
} else {
true
};
if !should_keep {
if file_type == "directory" {
it.skip_current_dir();
}
continue;
}
if entry.depth() >= entries_per_depths.len() {
debug_assert!(
entry.depth() == entries_per_depths.len(),
"Received unexpected entry with depth {} during descent, previously at {}",
entry.depth(),
entries_per_depths.len()
);
entries_per_depths.push(vec![entry]);
} else {
entries_per_depths[entry.depth()].push(entry);
}
// FUTUREWORK: determine when it's the right moment to flush a level to the ingester.
}
let entries_stream = tvix_castore::import::leveled_entries_to_stream(entries_per_depths);
pin_mut!(entries_stream);
state
.ingest_entries_sync(entries_stream)
.map_err(|err| ErrorKind::IO {
path: Some(path.to_path_buf()),
error: err.into(),
})
}
#[builtins(state = "Rc<TvixStoreIO>")]
mod import_builtins {
use std::rc::Rc;
use super::*;
use tvix_eval::generators::Gen;
use tvix_eval::{generators::GenCo, ErrorKind, Value};
use crate::tvix_store_io::TvixStoreIO;
#[builtin("filterSource")]
async fn builtin_filter_source(
state: Rc<TvixStoreIO>,
co: GenCo,
#[lazy] filter: Value,
path: Value,
) -> Result<Value, ErrorKind> {
let p = path.to_path()?;
let root_node = filtered_ingest(Rc::clone(&state), co, &p, Some(&filter)).await?;
let name = tvix_store::import::path_to_name(&p)?;
Ok(state
.tokio_handle
.block_on(async {
state
.register_node_in_path_info_service(name, &p, root_node)
.await
})
.map_err(|err| ErrorKind::IO {
path: Some(p.to_path_buf()),
error: err.into(),
})?
.to_absolute_path()
.into())
}
}
pub use import_builtins::builtins as import_builtins;
use crate::tvix_store_io::TvixStoreIO;
|
