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Code Issues Releases Activity

windows: attempt to enable long path support for MSVC targets

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See the README and comments in the build.rs. Basically, this embeds an
XML file that I guess is a way of setting configuration knobs on
Windows. One of those knobs is enabling long path support. You still
need to enable it in your registry (lol), but this will handle the other
half of it.

Fixes #364, Closes #2049
This commit is contained in:
Andrew Gallant
2023-07-08 13:27:22 -04:00
parent da7c81fb96
commit db6bb21a62
3 changed files with 71 additions and 0 deletions
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28
build.rs
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@ -48,6 +48,34 @@ fn main() {
if let Some(rev) = git_revision_hash() {
println!("cargo:rustc-env=RIPGREP_BUILD_GIT_HASH={}", rev);
}
// Embed a Windows manifest and set some linker options. The main reason
// for this is to enable long path support on Windows. This still, I
// believe, requires enabling long path support in the registry. But if
// that's enabled, then this will let ripgrep use C:\... style paths that
// are longer than 260 characters.
set_windows_exe_options();
}
fn set_windows_exe_options() {
static MANIFEST: &str = "pkg/windows/Manifest.xml";
let Ok(target_os) = env::var("CARGO_CFG_TARGET_OS") else { return };
let Ok(target_env) = env::var("CARGO_CFG_TARGET_ENV") else { return };
if !(target_os == "windows" && target_env == "msvc") {
return;
}
let Ok(mut manifest) = env::current_dir() else { return };
manifest.push(MANIFEST);
let Some(manifest) = manifest.to_str() else { return };
println!("cargo:rerun-if-changed={}", MANIFEST);
// Embed the Windows application manifest file.
println!("cargo:rustc-link-arg-bin=rg=/MANIFEST:EMBED");
println!("cargo:rustc-link-arg-bin=rg=/MANIFESTINPUT:{manifest}");
// Turn linker warnings into errors. Helps debugging, otherwise the
// warnings get squashed (I believe).
println!("cargo:rustc-link-arg-bin=rg=/WX");
}
fn git_revision_hash() -> Option<String> {