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add LLVM 18.x as a git submodule (#399)

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This changeset is based on https://github.com/paritytech/revive/pull/346
This commit is contained in:
kvpanch
2025-11-18 16:10:15 -05:00
committed by GitHub
parent a1090cfa5a
commit e78f3cc419
18 changed files with 89 additions and 310 deletions
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crates/llvm-builder/src/lib.rs
+8 -74
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@@ -5,7 +5,6 @@ pub mod builtins;
pub mod ccache_variant;
pub mod llvm_path;
pub mod llvm_project;
pub mod lock;
pub mod platforms;
pub mod sanitizer;
pub mod target_env;
@@ -14,7 +13,6 @@ pub mod utils;
pub use self::build_type::BuildType;
pub use self::llvm_path::LLVMPath;
pub use self::lock::Lock;
pub use self::platforms::Platform;
use std::collections::HashSet;
@@ -23,87 +21,25 @@ use std::process::Command;
pub use target_env::TargetEnv;
pub use target_triple::TargetTriple;
/// Executes the LLVM repository cloning.
pub fn clone(lock: Lock, deep: bool, target_env: TargetEnv) -> anyhow::Result<()> {
/// Initializes the LLVM submodule if not already done.
pub fn init(init_emscripten: bool) -> anyhow::Result<()> {
utils::check_presence("git")?;
if target_env == TargetEnv::Emscripten {
if init_emscripten {
utils::install_emsdk()?;
}
let destination_path = PathBuf::from(LLVMPath::DIRECTORY_LLVM_SOURCE);
if destination_path.exists() {
log::warn!(
"LLVM repository directory {} already exists, falling back to checkout",
destination_path.display()
);
return checkout(lock, false);
}
let mut clone_args = vec!["clone", "--branch", lock.branch.as_str()];
if !deep {
clone_args.push("--depth");
clone_args.push("1");
if destination_path.join(".git").exists() {
log::info!("LLVM submodule already initialized");
return Ok(());
}
utils::command(
Command::new("git")
.args(clone_args)
.arg(lock.url.as_str())
.arg(destination_path.to_string_lossy().as_ref()),
"LLVM repository cloning",
Command::new("git").args(["submodule", "update", "--init", "--recursive"]),
"LLVM submodule initialization",
)?;
if let Some(r#ref) = lock.r#ref {
utils::command(
Command::new("git")
.args(["checkout", r#ref.as_str()])
.current_dir(destination_path.to_string_lossy().as_ref()),
"LLVM repository commit checking out",
)?;
}
Ok(())
}
/// Executes the checkout of the specified branch.
pub fn checkout(lock: Lock, force: bool) -> anyhow::Result<()> {
let destination_path = PathBuf::from(LLVMPath::DIRECTORY_LLVM_SOURCE);
utils::command(
Command::new("git")
.current_dir(destination_path.as_path())
.args(["fetch", "--all", "--tags"]),
"LLVM repository data fetching",
)?;
if force {
utils::command(
Command::new("git")
.current_dir(destination_path.as_path())
.args(["clean", "-d", "-x", "--force"]),
"LLVM repository cleaning",
)?;
}
utils::command(
Command::new("git")
.current_dir(destination_path.as_path())
.args(["checkout", "--force", lock.branch.as_str()]),
"LLVM repository data pulling",
)?;
if let Some(r#ref) = lock.r#ref {
let mut checkout_command = Command::new("git");
checkout_command.current_dir(destination_path.as_path());
checkout_command.arg("checkout");
if force {
checkout_command.arg("--force");
}
checkout_command.arg(r#ref);
utils::command(&mut checkout_command, "LLVM repository checking out")?;
}
Ok(())
}
@@ -332,8 +268,6 @@ pub fn clean() -> anyhow::Result<()> {
.expect("target_env parent directory is target-llvm"),
)?;
remove_if_exists(&PathBuf::from(LLVMPath::DIRECTORY_EMSDK_SOURCE))?;
remove_if_exists(&PathBuf::from(LLVMPath::DIRECTORY_LLVM_SOURCE))?;
remove_if_exists(&PathBuf::from(LLVMPath::DIRECTORY_LLVM_HOST_SOURCE))?;
Ok(())
}