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Copy dylib to temp directory

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This commit is contained in:
Edwin Cheng 2020-04-25 12:29:49 +08:00
parent 3e24444aee
commit 5a5bba5a46
1 changed files with 18 additions and 1 deletions
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19
crates/ra_proc_macro_srv/src/dylib.rs
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@ -2,7 +2,7 @@
use crate::{proc_macro::bridge, rustc_server::TokenStream};
use std::fs::File;
use std::path::Path;
use std::path::{Path, PathBuf};
use goblin::{mach::Mach, Object};
use libloading::Library;
@ -123,6 +123,9 @@ impl Expander {
.canonicalize()
.unwrap_or_else(|err| panic!("Cannot canonicalize {}: {:?}", lib.display(), err));
// Copy the dylib to temp directory to prevent locking in Windows
let lib = copy_to_temp_dir(&lib).map_err(|e| e.to_string())?;
let library = ProcMacroLibraryImpl::open(&lib).map_err(|e| e.to_string())?;
Ok(Expander { inner: library })
@ -195,3 +198,17 @@ impl Expander {
.collect()
}
}
fn copy_to_temp_dir(path: &Path) -> io::Result<PathBuf> {
let mut to = std::env::temp_dir();
let file_name = path.file_name().ok_or_else(|| {
io::Error::new(
io::ErrorKind::InvalidInput,
format!("File path is invalid: {}", path.display()),
)
})?;
to.push(file_name);
std::fs::copy(path, &to)?;
Ok(to)
}