bacon 3.23.0

background rust compiler
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
130

//! Analyzer for swift build.
//!
//! # Config
//!
//! A sample bacon.toml:
//!
//! ```toml
//! default_job = "swift_build"
//!
//! [keybindings]
//! b = "job:swift_build"
//!
//! [jobs.swift_build]
//! command = ["swift", "build"]
//! watch = ["Sources"]
//! need_stdout = true
//! analyzer = "swift_build"
//! ```
//!
//! # Caveats
//!
//! This analyzer processes warnings, but `swift build` is incremental by default, and so warnings
//! will not be consistent. Consider treating warnings as errors if this is a problem.

use crate::{
    Analyzer,
    CommandOutputLine,
    ItemAccumulator,
    Kind,
    LineType,
    TLine,
    TString,
    burp,
};

use super::parse_swift_location;

#[derive(Debug, Default)]
pub struct SwiftBuildAnalyzer {
    lines: Vec<CommandOutputLine>,
}

impl Analyzer for SwiftBuildAnalyzer {
    fn start(
        &mut self,
        _: &crate::Mission,
    ) {
        self.lines.clear();
    }

    fn receive_line(
        &mut self,
        line: CommandOutputLine,
        command_output: &mut crate::CommandOutput,
    ) {
        self.lines.push(line.clone());
        command_output.push(line);
    }

    fn build_report(&mut self) -> anyhow::Result<crate::Report> {
        let mut items = ItemAccumulator::default();

        for line in &self.lines {
            if let Some(diagnostic) = recognize_swift_diagnostic(&line.content) {
                let content = match diagnostic.level {
                    Kind::Error => burp::error_line_ts(&diagnostic.message),
                    Kind::Warning => burp::warning_line_ts(&diagnostic.message),
                    _ => unreachable!(),
                };

                items.start_item(diagnostic.level);
                items.push_line(LineType::Title(diagnostic.level), content);
                items.push_line(
                    LineType::Location,
                    burp::location_line(format!(
                        "{}:{}:{}",
                        diagnostic.path, diagnostic.line, diagnostic.column
                    )),
                );
            } else {
                items.push_line(LineType::Normal, line.content.clone());
            }
        }

        Ok(items.report())
    }
}

struct SwiftDiagnostic<'a> {
    level: Kind,
    path: &'a str,
    line: &'a str,
    column: &'a str,
    message: Vec<TString>,
}

fn recognize_swift_diagnostic(line: &TLine) -> Option<SwiftDiagnostic<'_>> {
    // Look for Swift format: path:line:column: (error|warning): message
    let content = line.if_unstyled()?;

    if let Some(error_pos) = content.find(": error: ") {
        let location_part = &content[..error_pos];
        let message_part = &content[error_pos + ": error: ".len()..];

        if let Some((path, line_num, column)) = parse_swift_location(location_part) {
            return Some(SwiftDiagnostic {
                level: Kind::Error,
                path,
                line: line_num,
                column,
                message: vec![TString::new("", message_part)],
            });
        }
    } else if let Some(warning_pos) = content.find(": warning: ") {
        let location_part = &content[..warning_pos];
        let message_part = &content[warning_pos + ": warning: ".len()..];

        if let Some((path, line_num, column)) = parse_swift_location(location_part) {
            return Some(SwiftDiagnostic {
                level: Kind::Warning,
                path,
                line: line_num,
                column,
                message: vec![TString::new("", message_part)],
            });
        }
    }

    None
}