rari 0.13.6

rari: Runtime Accelerated Rendering Infrastructure - A high-performance React Server Components framework powered by Rust
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

use crate::utils::path_url::path_to_file_url;
use cow_utils::CowUtils;
use std::path::{Path, PathBuf};

pub struct DistPathResolver {
    project_root: PathBuf,
    dist_dir: PathBuf,
    server_dir: String,
}

impl DistPathResolver {
    pub fn new(project_root: PathBuf) -> Self {
        let dist_dir = project_root.join("dist");
        Self { project_root, dist_dir, server_dir: "server".to_string() }
    }

    pub fn get_dist_path(&self, component_id: &str) -> PathBuf {
        let filename = format!("{}.js", component_id);
        self.dist_dir.join(&self.server_dir).join(filename)
    }

    pub fn get_dist_url(&self, component_id: &str) -> String {
        let path = self.get_dist_path(component_id);
        path_to_file_url(&path)
    }

    pub fn file_path_to_component_id(&self, file_path: &Path) -> String {
        let relative_path = if file_path.is_absolute() {
            file_path.strip_prefix(&self.project_root).unwrap_or(file_path).to_path_buf()
        } else {
            file_path.to_path_buf()
        };

        let path_str = relative_path.to_string_lossy();

        path_str
            .cow_replace('\\', "/")
            .trim_end_matches(".tsx")
            .trim_end_matches(".ts")
            .trim_end_matches(".jsx")
            .trim_end_matches(".js")
            .cow_replace(|c: char| !c.is_alphanumeric() && c != '/' && c != '-', "_")
            .trim_start_matches("src/")
            .to_string()
    }

    pub fn dist_file_exists(&self, component_id: &str) -> bool {
        let path = self.get_dist_path(component_id);
        path.exists()
    }

    pub fn get_dist_file_mtime(&self, component_id: &str) -> Option<std::time::SystemTime> {
        let path = self.get_dist_path(component_id);
        std::fs::metadata(&path).ok().and_then(|metadata| metadata.modified().ok())
    }

    pub fn is_dist_newer_than_source(&self, component_id: &str, source_path: &Path) -> bool {
        let dist_mtime = match self.get_dist_file_mtime(component_id) {
            Some(time) => time,
            None => {
                return false;
            }
        };

        let source_mtime =
            match std::fs::metadata(source_path).ok().and_then(|metadata| metadata.modified().ok())
            {
                Some(time) => time,
                None => {
                    return false;
                }
            };

        dist_mtime > source_mtime
    }

    pub fn project_root(&self) -> &Path {
        &self.project_root
    }

    pub fn dist_dir(&self) -> &Path {
        &self.dist_dir
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use std::path::PathBuf;

    #[test]
    fn test_get_dist_path() {
        let resolver = DistPathResolver::new(PathBuf::from("/project"));
        let path = resolver.get_dist_path("pages/home");

        assert_eq!(path, PathBuf::from("/project/dist/server/pages/home.js"));
    }

    #[test]
    fn test_get_dist_url() {
        let resolver = DistPathResolver::new(PathBuf::from("/project"));
        let url = resolver.get_dist_url("components/Button");

        assert!(url.starts_with("file://"));
        assert!(url.contains("dist/server/components/Button.js"));
    }

    #[test]
    fn test_file_path_to_component_id() {
        let resolver = DistPathResolver::new(PathBuf::from("/project"));

        let id = resolver.file_path_to_component_id(Path::new("src/pages/home.tsx"));
        assert_eq!(id, "pages/home");

        let id = resolver.file_path_to_component_id(Path::new("components/Button.tsx"));
        assert_eq!(id, "components/Button");

        let id = resolver.file_path_to_component_id(Path::new("src/pages/[slug].tsx"));
        assert_eq!(id, "pages/_slug_");
    }

    #[test]
    fn test_file_path_to_component_id_absolute() {
        let resolver = DistPathResolver::new(PathBuf::from("/project"));

        let id = resolver.file_path_to_component_id(Path::new("/project/src/pages/about.tsx"));
        assert_eq!(id, "pages/about");
    }
}