dioxus_class/
build.rs

1use crate::prelude::*;
2use std::fs;
3use std::fs::File;
4use std::io::LineWriter;
5use std::io::Write;
6use std::path::Path;
7
8/// write file, for generating classes files
9pub fn write_file<P: AsRef<Path> + Clone>(
10    path: P,
11    content: &str,
12) -> Result<(), Box<dyn std::error::Error>> {
13    let path_str = path.clone().as_ref().to_string_lossy().to_string();
14    let file = File::create(path)?;
15    let mut writer = LineWriter::new(file);
16    writer.write_all(content.as_bytes())?;
17    println!(
18        "cargo:warning=dioxus-class::build::write_file: [{}] {}",
19        content.len(), path_str
20    );
21    Ok(())
22}
23
24/// write given classes to html format, which can be used by CSS utilities
25pub fn generate_classes<P: AsRef<Path> + Clone>(
26    path: P,
27    classes: Vec<Class>,
28) -> Result<(), Box<dyn std::error::Error>> {
29    let path_str = path.clone().as_ref().to_string_lossy().to_string();
30    let file = File::create(path)?;
31    let mut writer = LineWriter::new(file);
32    let mut class_count: usize = 0;
33    let mut size: usize = 0;
34    for class in classes {
35        let str = class.to_class();
36        class_count += 1;
37        size += str.len();
38        writer.write_all(format!("<div class=\"{}\">{}</div>\n", str, class.to_string()).as_bytes())?;
39    }
40    println!(
41        "cargo:warning=dioxus-class::build::generate_classes: {}-[{}] {}",
42        class_count, size, path_str
43    );
44    Ok(())
45}
46
47pub fn check_vec_ending(content: &str) -> bool {
48    for ch in content.chars().rev() {
49        if ch == ']' {
50            return true;
51        } else if vec!['\n', '\r', ' ', '\t'].contains(&ch) {
52            continue;
53        } else {
54            return false;
55        }
56    }
57    false
58}
59
60pub fn check_classes<P: AsRef<Path> + Clone>(
61    path: P,
62) -> Result<(), Box<dyn std::error::Error>> {
63    let content = if path.as_ref().exists() {
64        let lines = fs::read_to_string(path.clone())?;
65        if check_vec_ending(&lines) {
66            return Ok(())
67        }
68        println!("cargo:warning=dioxus-class::build::check_classes: append vec ending");
69        lines + "]\n"
70    } else {
71        println!("cargo:warning=dioxus-class::build::check_classes: create empty file");
72
73        "vec![]\n".to_owned()
74    };
75    write_file(path, &content)
76}
dioxus_class/build.rs

dioxus_class/
build.rs
