qemu_command_builder/args/
global.rs

1use std::str::FromStr;
2
3use bon::Builder;
4use proptest_derive::Arbitrary;
5
6use crate::parsers::{ARG_GLOBAL, DELIM_COMMA};
7use crate::to_command::ToCommand;
8
9/// Set default value of driver's property prop to value
10#[derive(Debug, Clone, Hash, Ord, PartialOrd, Eq, PartialEq, Default, Builder, Arbitrary)]
11pub struct Global {
12    /// The QOM device or driver name.
13    driver: String,
14    /// The property name.
15    property: String,
16    /// The assigned value.
17    value: String,
18}
19
20impl ToCommand for Global {
21    fn command(&self) -> String {
22        ARG_GLOBAL.to_string()
23    }
24    fn to_args(&self) -> Vec<String> {
25        vec![format!("driver={},property={},value={}", self.driver, self.property, self.value)]
26    }
27}
28
29impl FromStr for Global {
30    type Err = String;
31
32    fn from_str(s: &str) -> Result<Self, Self::Err> {
33        if let Some((left, value)) = s.rsplit_once('=')
34            && !left.contains(',')
35            && let Some((driver, property)) = left.rsplit_once('.')
36        {
37            return Ok(Self {
38                driver: driver.to_string(),
39                property: property.to_string(),
40                value: value.to_string(),
41            });
42        }
43
44        let mut driver = None;
45        let mut property = None;
46        let mut value_field = None;
47        for part in s.split(DELIM_COMMA) {
48            let (key, value) = part.split_once('=').ok_or_else(|| format!("invalid -global option: {part}"))?;
49            match key {
50                "driver" => driver = Some(value.to_string()),
51                "property" => property = Some(value.to_string()),
52                "value" => value_field = Some(value.to_string()),
53                other => return Err(format!("unsupported -global option: {other}")),
54            }
55        }
56        Ok(Self {
57            driver: driver.ok_or_else(|| "global requires driver=".to_string())?,
58            property: property.ok_or_else(|| "global requires property=".to_string())?,
59            value: value_field.ok_or_else(|| "global requires value=".to_string())?,
60        })
61    }
62}
qemu_command_builder/args/global.rs

qemu_command_builder/args/
global.rs
