feat: add SettingsPage with HuggingFace model search and fix flexbox layout

- Add SettingsPage component with macOS/Linear-style settings UI (sp-* classes)
- Fix HuggingFace results list squeeze: sp-card-row--full now has align-items: stretch
  overriding the inherited flex-start, ensuring children fill 100% horizontal width
- Fix sp-hf-file row layout: width 100%, grid columns for name/quant/size/download
- Fix sp-hf-name truncation: explicit overflow/ellipsis/white-space in CSS
- Add white-space: nowrap to sp-hf-size and sp-hf-quant-badge to protect secondary columns
- Add runtime-deps crate, Tailwind/PostCSS config, runtime-defaults, MessageBubble test
- Update Cargo workspace, inference-server, tauri runtime types and process handling
This commit is contained in:
Evandro Fonseca Junior committed 2026-03-30 23:35:08 -03:00
1 parent 9da25c3688
commit 01b629cb4a
41 files changed
+6864 -822

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+14 -9
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@@ -11,29 +11,34 @@ pub enum RuntimeProfile {
impl RuntimeProfile {
/// Returns sensible defaults for each profile.
///
/// `n_ctx` sets the KV cache / context window size. Larger values allow longer
/// conversations but consume more VRAM. Override at runtime with `LOCALLLM_CTX`.
/// `n_batch` controls the prefill chunk size — kept independent of `n_ctx` to
/// avoid pre-allocating the full window as a single batch buffer (OOM risk).
pub fn defaults(&self) -> ProfileDefaults {
match self {
Self::Turbo4B => ProfileDefaults {
n_gpu_layers: 999,
n_ctx: 4096,
n_batch: 512,
n_ubatch: 128,
n_ctx: 131_072, // 128 K — covers very long conversations; needs ~4 GB KV VRAM at FP16
n_batch: 2048, // prefill chunk size; independent of n_ctx
n_ubatch: 512,
flash_attn: true,
n_threads: 8,
},
Self::Balanced9B => ProfileDefaults {
n_gpu_layers: 999,
n_ctx: 2048,
n_batch: 256,
n_ubatch: 64,
n_ctx: 65_536, // 64 K
n_batch: 2048,
n_ubatch: 256,
flash_attn: true,
n_threads: 8,
},
Self::CpuFallback => ProfileDefaults {
n_gpu_layers: 0,
n_ctx: 2048,
n_batch: 128,
n_ubatch: 32,
n_ctx: 16_384, // 16 K — CPU KV cache is RAM-backed; keep conservative
n_batch: 512,
n_ubatch: 128,
flash_attn: false,
n_threads: num_cpus(),
},
+2
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@@ -12,6 +12,8 @@ path = "src/main.rs"
inference-core = { path = "../inference-core" }
api-contracts = { path = "../api-contracts" }
metrics = { path = "../metrics" }
runtime-deps = { path = "../runtime-deps" }
dirs = { workspace = true }
tokio.workspace = true
axum.workspace = true
hyper.workspace = true
+1 -35
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@@ -1,38 +1,4 @@
fn main() {
let out_dir = std::env::var("OUT_DIR").unwrap();
let target_dir = std::path::Path::new(&out_dir)
.ancestors()
.nth(3) // Volta 3 níveis de `target/debug/build/inference-server-XYZ/out` para `target/debug/` ou `target/release/`
.unwrap();
let vendor_dir = std::path::PathBuf::from(std::env::var("CARGO_MANIFEST_DIR").unwrap())
.parent()
.unwrap()
.parent()
.unwrap()
.join("vendor")
.join("llama-bin");
if vendor_dir.exists() {
println!(
"cargo:warning=Copying DLLs from {:?} to {:?}",
vendor_dir, target_dir
);
// Vamos copiar todos os arquivos .dll
if let Ok(entries) = std::fs::read_dir(&vendor_dir) {
for entry in entries.flatten() {
let path = entry.path();
if path.is_file() && path.extension().and_then(|s| s.to_str()) == Some("dll") {
let file_name = path.file_name().unwrap();
let dest = target_dir.join(file_name);
let _ = std::fs::copy(&path, &dest);
}
}
}
}
// Rebuildar apenas se houver mudanças nessa build file ou nos bins da vendor
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-changed=../../vendor/llama-bin");
println!("cargo:rerun-if-changed=../../vendor/llama-runtime/manifest.json");
}
+90 -11
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@@ -3,8 +3,12 @@ use std::path::PathBuf;
use std::sync::Arc;
use anyhow::Result;
use runtime_deps::{
apply_runtime_to_current_process, ensure_llama_runtime, recommended_variant_override_hint,
EnsureRuntimeRequest,
};
use tokio::sync::Mutex;
use tracing_subscriber::{fmt, EnvFilter};
use tracing_subscriber::{fmt, layer::SubscriberExt, util::SubscriberInitExt, EnvFilter};
use inference_core::{EngineConfig, InferenceEngine, RuntimeProfile};
use metrics::counters::PerfCounters;
@@ -17,12 +21,25 @@ use routes::{build_router, AppState};
#[tokio::main]
async fn main() -> Result<()> {
// ── Tracing ──────────────────────────────────────────────────────────
fmt()
.with_env_filter(
EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info")),
)
.with_target(false)
.init();
// Set LOCALLLM_LOG_FORMAT=json for machine-readable output (e.g. log aggregators).
// Set RUST_LOG=debug for verbose output.
let env_filter = EnvFilter::try_from_default_env()
.unwrap_or_else(|_| EnvFilter::new("info"));
match std::env::var("LOCALLLM_LOG_FORMAT").as_deref() {
Ok("json") => {
tracing_subscriber::registry()
.with(env_filter)
.with(fmt::layer().json().with_current_span(true).with_span_list(true))
.init();
}
_ => {
tracing_subscriber::registry()
.with(env_filter)
.with(fmt::layer().with_target(true))
.init();
}
}
// ── Engine config (reads env vars; sane defaults for dev) ────────────
let model_path = std::env::var("LOCALLLM_MODEL")
@@ -62,6 +79,45 @@ async fn main() -> Result<()> {
let server_config = Arc::new(ServerConfig::from_env(model_name.clone()));
// ── Load engine ──────────────────────────────────────────────────────
tracing::info!(
model = %model_path.display(),
profile = ?profile,
n_gpu_layers = config.n_gpu_layers,
n_ctx = config.n_ctx,
n_batch = config.n_batch,
n_ubatch = config.n_ubatch,
n_threads = config.n_threads,
n_threads_batch = config.n_threads_batch,
flash_attn = config.flash_attn,
use_mmap = config.use_mmap,
"engine_config"
);
let binary_path = std::env::current_exe()?;
let runtime_cache_root = dirs::data_local_dir()
.unwrap_or_else(|| {
binary_path
.parent()
.unwrap_or_else(|| std::path::Path::new("."))
.to_path_buf()
})
.join("ForgeLM");
let runtime = ensure_llama_runtime(&EnsureRuntimeRequest {
cache_root: &runtime_cache_root,
gpu_layers: config.n_gpu_layers,
variant_override: None,
binary_path: Some(&binary_path),
})
.map_err(|error| anyhow::anyhow!(
"failed to prepare llama runtime dependencies: {error}. {}",
recommended_variant_override_hint()
))?;
apply_runtime_to_current_process(&runtime);
tracing::info!(
dll = %runtime.dll_path.display(),
variant = runtime.variant_id,
source = ?runtime.source,
"llama_runtime_ready"
);
let mut engine = InferenceEngine::load(config)?;
engine.warmup()?;
@@ -81,6 +137,14 @@ async fn main() -> Result<()> {
let router = build_router(state);
let listener = tokio::net::TcpListener::bind(addr).await?;
tracing::info!(
bind_addr = %addr,
model = %model_name,
api_key_set = std::env::var("LOCALLLM_API_KEY").is_ok(),
log_format = std::env::var("LOCALLLM_LOG_FORMAT").as_deref().unwrap_or("pretty"),
"server_ready"
);
// ── Startup banner ───────────────────────────────────────────────────
let display_addr = if addr.ip().is_unspecified() {
format!("http://127.0.0.1:{}", addr.port())
@@ -125,8 +189,20 @@ fn env_u32(key: &str, default: u32) -> u32 {
.unwrap_or(default)
}
fn resolve_batch_size(n_ctx: u32, default_n_batch: u32, explicit_batch: Option<u32>) -> u32 {
explicit_batch.unwrap_or_else(|| n_ctx.max(default_n_batch).max(1))
/// Choose the prefill batch size.
///
/// The batch size controls how many tokens are processed in a single `llama_decode`
/// call during prefill. It must not be confused with the context window (`n_ctx`):
/// a large `n_ctx` does NOT require an equally large `n_batch` — `decode_prefill`
/// already chunks the prompt into `n_batch`-sized slices.
///
/// Setting `n_batch = n_ctx` for a 128 K context would pre-allocate ~128 K token
/// slots in the batch buffer, consuming gigabytes of VRAM at startup before any
/// request arrives. Instead we cap auto-selection at `MAX_AUTO_BATCH` and let
/// callers pass `LOCALLLM_BATCH` when they need a larger explicit override.
fn resolve_batch_size(_n_ctx: u32, default_n_batch: u32, explicit_batch: Option<u32>) -> u32 {
const MAX_AUTO_BATCH: u32 = 4096;
explicit_batch.unwrap_or_else(|| default_n_batch.min(MAX_AUTO_BATCH).max(1))
}
#[cfg(test)]
@@ -134,8 +210,11 @@ mod tests {
use super::resolve_batch_size;
#[test]
fn defaults_batch_to_context_size_when_ctx_is_larger() {
assert_eq!(resolve_batch_size(16_384, 512, None), 16_384);
fn caps_auto_batch_at_max_regardless_of_ctx_size() {
// Large n_ctx must NOT bloat n_batch — that would OOM the batch buffer.
assert_eq!(resolve_batch_size(131_072, 512, None), 512);
assert_eq!(resolve_batch_size(131_072, 4096, None), 4096);
assert_eq!(resolve_batch_size(131_072, 8192, None), 4096); // capped at MAX_AUTO_BATCH
}
#[test]
+10 -2
View File
@@ -397,9 +397,17 @@ async fn stream_response(
}
};
Sse::new(stream)
let response = Sse::new(stream)
.keep_alive(KeepAlive::default())
.into_response()
.into_response();
axum::response::Response::builder()
.status(response.status())
.header("content-type", "text/event-stream; charset=utf-8")
.header("cache-control", "no-cache")
.header("connection", "keep-alive")
.body(response.into_body())
.unwrap()
}
async fn blocking_response(
+13
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@@ -0,0 +1,13 @@
[package]
name = "runtime-deps"
version.workspace = true
edition.workspace = true
[dependencies]
anyhow = { workspace = true }
serde = { workspace = true }
serde_json = { workspace = true }
sha2 = { workspace = true }
ureq = { workspace = true }
zip = { workspace = true }
dirs = { workspace = true }
+614
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@@ -0,0 +1,614 @@
use std::ffi::OsString;
use std::fs::{self, File, OpenOptions};
use std::io::{self, BufReader, Read, Write};
use std::path::{Path, PathBuf};
use std::process::Command;
use std::thread;
use std::time::{Duration, Instant};
use anyhow::{anyhow, bail, Context, Result};
use serde::Deserialize;
use sha2::{Digest, Sha256};
const MANIFEST_JSON: &str = include_str!("../../../vendor/llama-runtime/manifest.json");
const LOCKFILE_NAME: &str = ".install.lock";
const DOWNLOAD_TIMEOUT: Duration = Duration::from_secs(300);
const LOCK_TIMEOUT: Duration = Duration::from_secs(300);
const LOCK_POLL_INTERVAL: Duration = Duration::from_millis(250);
#[derive(Debug, Clone)]
pub struct EnsureRuntimeRequest<'a> {
pub cache_root: &'a Path,
pub gpu_layers: i32,
pub variant_override: Option<&'a str>,
pub binary_path: Option<&'a Path>,
}
#[derive(Debug, Clone)]
pub struct ResolvedRuntime {
pub dll_path: PathBuf,
pub library_dir: PathBuf,
pub variant_id: String,
pub source: RuntimeSource,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum RuntimeSource {
EnvOverride,
AdjacentBinary,
LegacyVendor,
ManagedCache,
}
pub fn ensure_llama_runtime(request: &EnsureRuntimeRequest<'_>) -> Result<ResolvedRuntime> {
if let Some(runtime) = resolve_from_env_override()? {
return Ok(runtime);
}
let manifest = load_manifest()?;
let variant = select_variant(&manifest, request.gpu_layers, request.variant_override)?;
if let Some(runtime) = resolve_from_adjacent_binary(request.binary_path, variant)? {
return Ok(runtime);
}
if let Some(runtime) = resolve_from_legacy_vendor(request.binary_path, variant)? {
return Ok(runtime);
}
let install_dir = request
.cache_root
.join("llama-runtime")
.join(&manifest.release)
.join(&variant.id);
let dll_path = install_dir.join(&variant.dll);
if installation_is_valid(&install_dir, variant) {
return Ok(ResolvedRuntime {
dll_path,
library_dir: install_dir,
variant_id: variant.id.clone(),
source: RuntimeSource::ManagedCache,
});
}
fs::create_dir_all(install_dir.parent().unwrap_or(request.cache_root)).with_context(|| {
format!(
"failed to create runtime cache root at {}",
request.cache_root.display()
)
})?;
let _lock = InstallationLock::acquire(&install_dir)?;
if installation_is_valid(&install_dir, variant) {
return Ok(ResolvedRuntime {
dll_path,
library_dir: install_dir,
variant_id: variant.id.clone(),
source: RuntimeSource::ManagedCache,
});
}
install_variant(&install_dir, variant)?;
Ok(ResolvedRuntime {
dll_path,
library_dir: install_dir,
variant_id: variant.id.clone(),
source: RuntimeSource::ManagedCache,
})
}
pub fn apply_runtime_to_command(command: &mut Command, runtime: &ResolvedRuntime) {
command.env("LLAMA_DLL_PATH", &runtime.dll_path);
#[cfg(target_os = "windows")]
{
let path = prepend_path_entry(&runtime.library_dir, std::env::var_os("PATH"));
command.env("PATH", path);
}
}
pub fn apply_runtime_to_current_process(runtime: &ResolvedRuntime) {
std::env::set_var("LLAMA_DLL_PATH", &runtime.dll_path);
#[cfg(target_os = "windows")]
{
let path = prepend_path_entry(&runtime.library_dir, std::env::var_os("PATH"));
std::env::set_var("PATH", path);
}
}
pub fn recommended_variant_override_hint() -> &'static str {
"Set FORGELM_LLAMA_RUNTIME_VARIANT to a manifest variant id like windows-x64-cpu or windows-x64-cuda-12.4."
}
fn resolve_from_env_override() -> Result<Option<ResolvedRuntime>> {
let Ok(raw_path) = std::env::var("LLAMA_DLL_PATH") else {
return Ok(None);
};
let dll_path = PathBuf::from(raw_path);
if !dll_path.exists() {
bail!(
"LLAMA_DLL_PATH points to {}, but that file does not exist",
dll_path.display()
);
}
let library_dir = dll_path
.parent()
.map(Path::to_path_buf)
.ok_or_else(|| anyhow!("LLAMA_DLL_PATH must point to a file, not a root path"))?;
Ok(Some(ResolvedRuntime {
dll_path,
library_dir,
variant_id: "env-override".to_string(),
source: RuntimeSource::EnvOverride,
}))
}
fn resolve_from_adjacent_binary(
binary_path: Option<&Path>,
variant: &ManifestVariant,
) -> Result<Option<ResolvedRuntime>> {
let Some(binary_path) = binary_path else {
return Ok(None);
};
let Some(binary_dir) = binary_path.parent() else {
return Ok(None);
};
let dll_path = binary_dir.join(default_dll_name());
if dll_path.exists() && verify_required_files(binary_dir, variant).is_ok() {
return Ok(Some(ResolvedRuntime {
dll_path,
library_dir: binary_dir.to_path_buf(),
variant_id: "adjacent-binary".to_string(),
source: RuntimeSource::AdjacentBinary,
}));
}
Ok(None)
}
fn resolve_from_legacy_vendor(
binary_path: Option<&Path>,
variant: &ManifestVariant,
) -> Result<Option<ResolvedRuntime>> {
let Some(binary_path) = binary_path else {
return Ok(None);
};
let mut dir = binary_path.parent();
while let Some(current) = dir {
let candidate = current
.join("vendor")
.join("llama-bin")
.join(default_dll_name());
let Some(library_dir) = candidate.parent() else {
dir = current.parent();
continue;
};
if candidate.exists() && verify_required_files(library_dir, variant).is_ok() {
return Ok(Some(ResolvedRuntime {
dll_path: candidate.clone(),
library_dir: library_dir.to_path_buf(),
variant_id: "legacy-vendor".to_string(),
source: RuntimeSource::LegacyVendor,
}));
}
dir = current.parent();
}
Ok(None)
}
fn load_manifest() -> Result<Manifest> {
serde_json::from_str(MANIFEST_JSON).context("failed to parse embedded llama runtime manifest")
}
fn select_variant<'a>(
manifest: &'a Manifest,
gpu_layers: i32,
variant_override: Option<&str>,
) -> Result<&'a ManifestVariant> {
let env_override = std::env::var("FORGELM_LLAMA_RUNTIME_VARIANT").ok();
if let Some(override_id) = variant_override.or(env_override.as_deref()) {
return manifest
.variants
.iter()
.find(|variant| variant.id == override_id)
.ok_or_else(|| anyhow!("unknown runtime variant '{override_id}'"));
}
let target = current_target();
let want_gpu = gpu_layers > 0;
manifest
.variants
.iter()
.find(|variant| variant.target == target && variant.gpu == want_gpu)
.or_else(|| {
manifest
.variants
.iter()
.find(|variant| variant.target == target && !variant.gpu)
})
.ok_or_else(|| anyhow!("no runtime bundle configured for target {target}"))
}
fn install_variant(install_dir: &Path, variant: &ManifestVariant) -> Result<()> {
if let Some(parent) = install_dir.parent() {
fs::create_dir_all(parent).with_context(|| {
format!(
"failed to create runtime install parent at {}",
parent.display()
)
})?;
}
let staging_dir = install_dir.with_extension("staging");
if staging_dir.exists() {
fs::remove_dir_all(&staging_dir).with_context(|| {
format!(
"failed to clean previous staging dir {}",
staging_dir.display()
)
})?;
}
fs::create_dir_all(&staging_dir)
.with_context(|| format!("failed to create staging dir {}", staging_dir.display()))?;
for archive in &variant.archives {
let archive_path = download_archive_to_file(archive, &staging_dir)?;
extract_zip_file(&archive_path, &staging_dir)?;
}
verify_required_files(&staging_dir, variant)?;
if install_dir.exists() {
fs::remove_dir_all(install_dir).with_context(|| {
format!(
"failed to replace old runtime dir {}",
install_dir.display()
)
})?;
}
fs::rename(&staging_dir, install_dir).or_else(|rename_error| {
copy_dir_recursive(&staging_dir, install_dir)
.and_then(|_| {
fs::remove_dir_all(&staging_dir)
.with_context(|| format!("failed to remove staging dir {}", staging_dir.display()))
})
.map_err(|copy_error| {
anyhow!(
"failed to finalize runtime install via rename ({rename_error}) and copy fallback ({copy_error})"
)
})
})?;
Ok(())
}
fn download_archive_to_file(archive: &ManifestArchive, staging_dir: &Path) -> Result<PathBuf> {
let downloads_dir = staging_dir.join(".downloads");
fs::create_dir_all(&downloads_dir)
.with_context(|| format!("failed to create downloads dir {}", downloads_dir.display()))?;
let archive_name = archive
.url
.rsplit('/')
.next()
.filter(|name| !name.is_empty())
.ok_or_else(|| anyhow!("archive url has no file name: {}", archive.url))?;
let archive_path = downloads_dir.join(archive_name);
let response = ureq::get(&archive.url)
.timeout(DOWNLOAD_TIMEOUT)
.call()
.with_context(|| format!("failed to download {}", archive.url))?;
let mut reader = response.into_reader();
let mut file = File::create(&archive_path)
.with_context(|| format!("failed to create archive file {}", archive_path.display()))?;
let mut hasher = Sha256::new();
let mut total_bytes = 0u64;
let mut buffer = [0u8; 64 * 1024];
loop {
let read = reader
.read(&mut buffer)
.with_context(|| format!("failed to stream downloaded bytes from {}", archive.url))?;
if read == 0 {
break;
}
total_bytes += read as u64;
if total_bytes > archive.size {
bail!(
"downloaded archive {} exceeded declared size {} bytes",
archive.url,
archive.size
);
}
hasher.update(&buffer[..read]);
file.write_all(&buffer[..read]).with_context(|| {
format!(
"failed to write downloaded archive to {}",
archive_path.display()
)
})?;
}
if total_bytes != archive.size {
bail!(
"downloaded archive {} size mismatch: expected {} bytes, got {}",
archive.url,
archive.size,
total_bytes
);
}
let expected = &archive.sha256;
let actual = format!("{:x}", hasher.finalize());
if actual != *expected {
bail!(
"downloaded archive {} failed sha256 verification: expected {}, got {}",
archive.url,
expected,
actual
);
}
Ok(archive_path)
}
fn extract_zip_file(archive_path: &Path, dest_dir: &Path) -> Result<()> {
let file = File::open(archive_path)
.with_context(|| format!("failed to open archive {}", archive_path.display()))?;
let mut archive =
zip::ZipArchive::new(BufReader::new(file)).context("failed to open zip archive")?;
for index in 0..archive.len() {
let mut entry = archive
.by_index(index)
.context("failed to read zip entry")?;
let Some(relative_path) = entry.enclosed_name().map(|path| path.to_path_buf()) else {
continue;
};
let output_path = dest_dir.join(relative_path);
if entry.is_dir() {
fs::create_dir_all(&output_path).with_context(|| {
format!("failed to create extracted dir {}", output_path.display())
})?;
continue;
}
if let Some(parent) = output_path.parent() {
fs::create_dir_all(parent)
.with_context(|| format!("failed to create parent dir {}", parent.display()))?;
}
let mut output = File::create(&output_path).with_context(|| {
format!("failed to create extracted file {}", output_path.display())
})?;
io::copy(&mut entry, &mut output)
.with_context(|| format!("failed to extract {}", output_path.display()))?;
}
Ok(())
}
fn verify_required_files(install_dir: &Path, variant: &ManifestVariant) -> Result<()> {
for required_file in &variant.required_files {
let candidate = install_dir.join(required_file);
if !candidate.exists() {
bail!(
"runtime bundle {} is missing required file {}",
variant.id,
candidate.display()
);
}
}
Ok(())
}
fn installation_is_valid(install_dir: &Path, variant: &ManifestVariant) -> bool {
install_dir.exists() && verify_required_files(install_dir, variant).is_ok()
}
fn default_dll_name() -> &'static str {
#[cfg(target_os = "windows")]
{
"llama.dll"
}
#[cfg(target_os = "linux")]
{
"libllama.so"
}
#[cfg(target_os = "macos")]
{
"libllama.dylib"
}
}
fn current_target() -> &'static str {
#[cfg(all(target_os = "windows", target_arch = "x86_64"))]
{
"windows-x86_64"
}
#[cfg(all(target_os = "windows", target_arch = "aarch64"))]
{
"windows-aarch64"
}
#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
{
"linux-x86_64"
}
#[cfg(all(target_os = "macos", target_arch = "x86_64"))]
{
"macos-x86_64"
}
#[cfg(all(target_os = "macos", target_arch = "aarch64"))]
{
"macos-aarch64"
}
}
fn prepend_path_entry(entry: &Path, existing: Option<OsString>) -> OsString {
let mut paths = vec![entry.to_path_buf()];
if let Some(existing) = existing {
paths.extend(std::env::split_paths(&existing));
}
std::env::join_paths(paths).unwrap_or_else(|_| OsString::from(entry.as_os_str()))
}
fn copy_dir_recursive(source: &Path, destination: &Path) -> Result<()> {
fs::create_dir_all(destination)
.with_context(|| format!("failed to create {}", destination.display()))?;
for entry in
fs::read_dir(source).with_context(|| format!("failed to read {}", source.display()))?
{
let entry = entry?;
let source_path = entry.path();
let destination_path = destination.join(entry.file_name());
if source_path.is_dir() {
copy_dir_recursive(&source_path, &destination_path)?;
} else {
fs::copy(&source_path, &destination_path).with_context(|| {
format!(
"failed to copy {} to {}",
source_path.display(),
destination_path.display()
)
})?;
}
}
Ok(())
}
struct InstallationLock {
path: PathBuf,
_file: File,
}
impl InstallationLock {
fn acquire(install_dir: &Path) -> Result<Self> {
fs::create_dir_all(install_dir.parent().unwrap_or(install_dir)).with_context(|| {
format!("failed to create lock parent for {}", install_dir.display())
})?;
let lock_path = install_dir.join(LOCKFILE_NAME);
let started = Instant::now();
loop {
match OpenOptions::new()
.create_new(true)
.write(true)
.open(&lock_path)
{
Ok(file) => {
return Ok(Self {
path: lock_path,
_file: file,
})
}
Err(error) if error.kind() == io::ErrorKind::AlreadyExists => {
if lock_is_stale(&lock_path)? {
let _ = fs::remove_file(&lock_path);
continue;
}
if started.elapsed() >= LOCK_TIMEOUT {
bail!(
"timed out waiting for runtime install lock at {}",
lock_path.display()
);
}
thread::sleep(LOCK_POLL_INTERVAL);
}
Err(error) => {
return Err(error).with_context(|| {
format!(
"failed to acquire runtime install lock at {}",
lock_path.display()
)
})
}
}
}
}
}
impl Drop for InstallationLock {
fn drop(&mut self) {
let _ = fs::remove_file(&self.path);
}
}
fn lock_is_stale(lock_path: &Path) -> Result<bool> {
let metadata = match fs::metadata(lock_path) {
Ok(metadata) => metadata,
Err(error) if error.kind() == io::ErrorKind::NotFound => return Ok(false),
Err(error) => {
return Err(error).with_context(|| {
format!("failed to read lock metadata for {}", lock_path.display())
})
}
};
let modified = metadata
.modified()
.with_context(|| format!("failed to read lock timestamp for {}", lock_path.display()))?;
Ok(modified.elapsed().unwrap_or_default() > LOCK_TIMEOUT)
}
#[derive(Debug, Deserialize)]
struct Manifest {
release: String,
variants: Vec<ManifestVariant>,
}
#[derive(Debug, Deserialize)]
struct ManifestVariant {
id: String,
target: String,
gpu: bool,
dll: String,
archives: Vec<ManifestArchive>,
required_files: Vec<String>,
}
#[derive(Debug, Deserialize)]
struct ManifestArchive {
url: String,
sha256: String,
size: u64,
}
#[cfg(test)]
mod tests {
use super::{current_target, load_manifest, prepend_path_entry, select_variant, Manifest};
use std::ffi::OsString;
use std::path::Path;
fn manifest() -> Manifest {
load_manifest().expect("manifest")
}
#[test]
fn selects_cpu_variant_for_local_cpu_mode() {
let manifest = manifest();
let variant = select_variant(&manifest, 0, None).expect("variant");
assert_eq!(variant.target, current_target());
assert!(!variant.gpu);
}
#[test]
fn selects_gpu_variant_when_gpu_layers_are_requested() {
let manifest = manifest();
let variant = select_variant(&manifest, 32, None).expect("variant");
assert_eq!(variant.target, current_target());
assert!(variant.gpu);
}
#[test]
fn accepts_explicit_variant_override() {
let manifest = manifest();
let variant = select_variant(&manifest, 0, Some("windows-x64-cpu")).expect("variant");
assert_eq!(variant.id, "windows-x64-cpu");
}
#[test]
fn prepends_runtime_dir_to_existing_path() {
let joined = prepend_path_entry(
Path::new("C:/runtime"),
Some(OsString::from("C:/windows;C:/tools")),
);
let rendered = joined.to_string_lossy();
assert!(rendered.starts_with("C:/runtime"));
assert!(rendered.contains("C:/windows"));
}
}