asimov-runner 25.1.0

ASIMOV Software Development Kit (SDK) for 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

// This is free and unencumbered software released into the public domain.

use crate::{Executor, ExecutorError, GraphOutput, Input};
use async_trait::async_trait;
use derive_more::Debug;
use std::{
    ffi::OsStr,
    io::{Cursor, Read},
    process::Stdio,
};
use tokio::io::{AsyncRead, AsyncWrite};

pub use asimov_patterns::FetcherOptions;

/// See: https://asimov-specs.github.io/program-patterns/#fetcher
pub type FetcherResult = std::result::Result<Cursor<Vec<u8>>, ExecutorError>; // TODO

/// See: https://asimov-specs.github.io/program-patterns/#fetcher
#[allow(unused)]
#[derive(Debug)]
pub struct Fetcher {
    executor: Executor,
    options: FetcherOptions,
    input: String,
    output: GraphOutput,
}

impl Fetcher {
    pub fn new(
        program: impl AsRef<OsStr>,
        input: impl AsRef<str>,
        output: GraphOutput,
        options: FetcherOptions,
    ) -> Self {
        let input = input.as_ref().to_string();
        let mut executor = Executor::new(program);
        executor
            .command()
            .args(if let Some(ref output) = options.output {
                vec![format!("--output={}", output)]
            } else {
                vec![]
            })
            .args(&options.other)
            .arg(&input)
            .stdin(Stdio::null())
            .stdout(output.as_stdio())
            .stderr(Stdio::piped());

        Self {
            executor,
            options,
            input,
            output,
        }
    }

    pub async fn execute(&mut self) -> FetcherResult {
        let stdout = self.executor.execute().await?;
        Ok(stdout)
    }
}

impl asimov_patterns::Fetcher<Cursor<Vec<u8>>, ExecutorError> for Fetcher {}

#[async_trait]
impl asimov_patterns::Execute<Cursor<Vec<u8>>, ExecutorError> for Fetcher {
    async fn execute(&mut self) -> FetcherResult {
        self.execute().await
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use asimov_patterns::Execute;

    #[tokio::test]
    async fn test_execute() {
        let mut fetcher = Fetcher::new(
            "curl",
            "https://www.google.com/robots.txt",
            GraphOutput::Ignored,
            FetcherOptions::default(),
        );
        let result = fetcher.execute().await;
        assert!(result.is_ok());
    }
}