crossbuild_core/
config.rs

1//! Configuration loading from environment and workspace defaults.
2
3use std::collections::BTreeMap;
4use std::env;
5use std::path::{Path, PathBuf};
6
7use anyhow::Result;
8use crate::error::CrossBuildError;
9
10/// Configuration loaded from environment and workspace defaults.
11#[derive(Debug, Clone, PartialEq, Eq)]
12pub struct CrossBuildConfig {
13    pub cargo_program: PathBuf,
14    pub target_dir: PathBuf,
15    pub extra_env: BTreeMap<String, String>,
16}
17
18impl Default for CrossBuildConfig {
19    fn default() -> Self {
20        Self {
21            cargo_program: PathBuf::from("cargo"),
22            target_dir: PathBuf::from("target").join("crossbuild"),
23            extra_env: BTreeMap::new(),
24        }
25    }
26}
27
28impl CrossBuildConfig {
29    pub fn from_environment() -> Result<Self, CrossBuildError> {
30        let mut config = Self::default();
31
32        if let Ok(value) = std::env::var("CARGO") {
33            if !value.trim().is_empty() {
34                config.cargo_program = PathBuf::from(value);
35            }
36        }
37
38        if let Ok(value) = env::var("CROSSBUILD_TARGET_DIR") {
39            if !value.trim().is_empty() {
40                config.target_dir = PathBuf::from(value);
41            }
42        }
43
44        if let Ok(value) = env::var("CROSSBUILD_COLOR") {
45            if !value.trim().is_empty() {
46                config
47                    .extra_env
48                    .insert("CARGO_TERM_COLOR".to_string(), value);
49            }
50        }
51
52        // Inherit relevant CARGO_* env vars
53        for (key, value) in env::vars() {
54            if key.starts_with("CARGO_") && !value.trim().is_empty() {
55                config.extra_env.insert(key, value);
56            }
57        }
58
59        Ok(config)
60    }
61
62    pub fn cargo_program_str(&self) -> String {
63        self.cargo_program.to_string_lossy().into_owned()
64    }
65
66    pub fn target_dir_for(&self, workspace_root: &Path) -> PathBuf {
67        if self.target_dir.is_absolute() {
68            self.target_dir.clone()
69        } else {
70            workspace_root.join(&self.target_dir)
71        }
72    }
73}
crossbuild_core/config.rs

crossbuild_core/
config.rs
