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#![allow(unreachable_code)]
use std::env;
use std::io::{Error, ErrorKind, Result};
use std::path::{Path, PathBuf};
use std::process::Command;
#[cfg_attr(feature = "vendored", path = "find_vendored.rs")]
#[cfg_attr(not(feature = "vendored"), path = "find_normal.rs")]
mod find;
trait CommandExt {
fn execute(&mut self) -> Result<()>;
}
impl CommandExt for Command {
/// Execute the command and return an error if it exited with a failure status.
fn execute(&mut self) -> Result<()> {
self.status()
.and_then(|status| {
if status.success() {
Ok(())
} else {
Err(Error::new(ErrorKind::Other, "non-zero exit code"))
}
})
.map_err(|_| {
Error::new(
ErrorKind::Other,
format!("The command {:?} did not run successfully.", self),
)
})
}
}
fn build_glue<P: AsRef<Path> + std::fmt::Debug>(include_path: &P) {
let build_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let mut config = cc::Build::new();
config.include(include_path);
// Compile and run glue.c
let glue = build_dir.join("glue");
config
.get_compiler()
.to_command()
.arg("src/ffi/glue/glue.c")
.arg("-o")
.arg(&glue)
.execute()
.unwrap();
Command::new(glue)
.arg(build_dir.join("glue.rs"))
.execute()
.unwrap();
}
fn main() {
#[cfg(not(any(
feature = "lua53",
feature = "lua52",
feature = "lua51",
feature = "luajit"
)))]
panic!("You must enable one of the features: lua53, lua52, lua51, luajit");
#[cfg(all(
feature = "lua53",
any(feature = "lua52", feature = "lua51", feature = "luajit")
))]
panic!("You can enable only one of the features: lua53, lua52, lua51, luajit");
#[cfg(all(feature = "lua52", any(feature = "lua51", feature = "luajit")))]
panic!("You can enable only one of the features: lua53, lua52, lua51, luajit");
#[cfg(all(feature = "lua51", feature = "luajit"))]
panic!("You can enable only one of the features: lua53, lua52, lua51, luajit");
#[cfg(all(feature = "lua51", feature = "luajit"))]
panic!("You can enable only one of the features: lua53, lua52, lua51, luajit");
let include_dir = find::probe_lua();
build_glue(&include_dir);
}
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