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
131
132
133
134
135
136
137

use std::path::{Path, PathBuf};

use crate::build::{CApiConfig, InstallTarget};
use crate::target::Target;

#[derive(Debug, Default, Clone)]
pub struct ExtraTargets {
    pub include: Vec<(PathBuf, PathBuf)>,
    pub data: Vec<(PathBuf, PathBuf)>,
}

impl ExtraTargets {
    pub fn setup(
        &mut self,
        capi_config: &CApiConfig,
        root_dir: &Path,
        out_dir: Option<&Path>,
    ) -> anyhow::Result<()> {
        self.include = extra_targets(&capi_config.install.include, root_dir, out_dir)?;
        self.data = extra_targets(&capi_config.install.data, root_dir, out_dir)?;

        Ok(())
    }
}

fn extra_targets(
    targets: &[InstallTarget],
    root_path: &Path,
    root_output: Option<&Path>,
) -> anyhow::Result<Vec<(PathBuf, PathBuf)>> {
    use itertools::*;
    targets
        .iter()
        .filter_map(|t| match t {
            InstallTarget::Asset(paths) => Some(paths.install_paths(root_path)),
            InstallTarget::Generated(paths) => {
                root_output.map(|root_output| paths.install_paths(root_output))
            }
        })
        .flatten_ok()
        .collect()
}

#[derive(Debug, Clone)]
pub struct BuildTargets {
    pub include: Option<PathBuf>,
    pub static_lib: Option<PathBuf>,
    pub shared_lib: Option<PathBuf>,
    pub impl_lib: Option<PathBuf>,
    pub def: Option<PathBuf>,
    pub pc: PathBuf,
    pub target: Target,
    pub extra: ExtraTargets,
}

impl BuildTargets {
    pub fn new(
        name: &str,
        target: &Target,
        targetdir: &Path,
        libkinds: &[&str],
        capi_config: &CApiConfig,
    ) -> anyhow::Result<BuildTargets> {
        let pc = targetdir.join(&format!("{}.pc", &capi_config.pkg_config.filename));
        let include = if capi_config.header.enabled {
            let mut header_name = PathBuf::from(&capi_config.header.name);
            header_name.set_extension("h");
            Some(targetdir.join(&header_name))
        } else {
            None
        };

        let lib_name = name;

        let os = &target.os;
        let env = &target.env;

        let (shared_lib, static_lib, impl_lib, def) = match (os.as_str(), env.as_str()) {
            ("none", _)
            | ("linux", _)
            | ("freebsd", _)
            | ("dragonfly", _)
            | ("netbsd", _)
            | ("android", _)
            | ("haiku", _) => {
                let static_lib = targetdir.join(&format!("lib{}.a", lib_name));
                let shared_lib = targetdir.join(&format!("lib{}.so", lib_name));
                (shared_lib, static_lib, None, None)
            }
            ("macos", _) | ("ios", _) => {
                let static_lib = targetdir.join(&format!("lib{}.a", lib_name));
                let shared_lib = targetdir.join(&format!("lib{}.dylib", lib_name));
                (shared_lib, static_lib, None, None)
            }
            ("windows", env) => {
                let static_lib = if env == "msvc" {
                    targetdir.join(&format!("{}.lib", lib_name))
                } else {
                    targetdir.join(&format!("lib{}.a", lib_name))
                };
                let shared_lib = targetdir.join(&format!("{}.dll", lib_name));
                let impl_lib = if env == "msvc" {
                    targetdir.join(&format!("{}.dll.lib", lib_name))
                } else {
                    targetdir.join(&format!("{}.dll.a", lib_name))
                };
                let def = targetdir.join(&format!("{}.def", lib_name));
                (shared_lib, static_lib, Some(impl_lib), Some(def))
            }
            _ => unimplemented!("The target {}-{} is not supported yet", os, env),
        };

        let static_lib = if libkinds.contains(&"staticlib") {
            Some(static_lib)
        } else {
            None
        };

        // Bare metal does not support shared objects
        let shared_lib = if libkinds.contains(&"cdylib") && os.as_str() != "none" {
            Some(shared_lib)
        } else {
            None
        };

        Ok(BuildTargets {
            pc,
            include,
            static_lib,
            shared_lib,
            impl_lib,
            def,
            target: target.clone(),
            extra: Default::default(),
        })
    }
}