cargo-leptos 0.1.8

Build tool for Leptos.
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

use std::sync::Arc;

use crate::{
    compile::{self},
    config::Project,
    ext::anyhow::Context,
    service,
    signal::{Interrupt, Outcome, Product, ProductSet, ReloadSignal, ServerRestart},
};
use anyhow::Result;
use tokio::try_join;

use super::build::build_proj;

pub async fn watch(proj: &Arc<Project>) -> Result<()> {
    // even if the build fails, we continue
    build_proj(proj).await?;

    // but if ctrl-c is pressed, we stop
    if Interrupt::is_shutdown_requested().await {
        return Ok(());
    }

    let _watch = service::notify::spawn(proj).await?;

    service::serve::spawn(proj).await;
    service::reload::spawn(proj).await;

    let res = run_loop(proj).await;
    if res.is_err() {
        Interrupt::request_shutdown().await;
    }
    res
}

pub async fn run_loop(proj: &Arc<Project>) -> Result<()> {
    let mut int = Interrupt::subscribe_any();
    loop {
        log::debug!("Watch waiting for changes");
        int.recv().await.dot()?;

        if Interrupt::is_shutdown_requested().await {
            log::debug!("Shutting down");
            return Ok(());
        }

        let changes = Interrupt::get_source_changes().await;

        let server_hdl = compile::server(proj, &changes).await;
        let front_hdl = compile::front(proj, &changes).await;
        let assets_hdl = compile::assets(proj, &changes, false).await;
        let style_hdl = compile::style(proj, &changes).await;

        let (serve, front, assets, style) =
            try_join!(server_hdl, front_hdl, assets_hdl, style_hdl)?;

        let outcomes = vec![serve?, front?, assets?, style?];

        let failed = outcomes.iter().any(|outcome| *outcome == Outcome::Failed);
        let interrupted = outcomes.iter().any(|outcome| *outcome == Outcome::Stopped);

        if failed {
            log::warn!("Build failed");
            Interrupt::clear_source_changes().await;
        } else if interrupted {
            log::info!("Build interrupted. Restarting.");
        } else {
            let set = ProductSet::from(outcomes);

            if set.is_empty() {
                log::trace!("Build step done with no changes");
            } else {
                log::trace!("Build step done with changes: {set}");
            }

            if set.only_style() {
                ReloadSignal::send_style();
                log::info!("Watch updated style")
            } else if set.contains(&Product::Server) {
                // send product change, then the server will send the reload once it has restarted
                ServerRestart::send();
                log::info!("Watch updated {set}. Server restarting")
            } else if set.contains_any(&[Product::Front, Product::Assets]) {
                ReloadSignal::send_full();
                log::info!("Watch updated {set}")
            }
            Interrupt::clear_source_changes().await;
        }
    }
}