Creating new sync Api for candle-hub.

- `api::Api` -> `api::tokio::api` (And created new `api::sync::Api`).
- Remove `tokio` from all our examples.
- Using similar codebase for now instead of ureq (for simplicity).

candle-examples/Cargo.toml

@@ -23,7 +23,6 @@ candle-hub = { path = "../candle-hub" }
 clap = { version = "4.2.4", features = ["derive"] }
 rand = "0.8.5"
 tokenizers = { version = "0.13.3", default-features=false, features=["onig"] }
-tokio = { version = "1.28.2", features = ["macros", "rt-multi-thread"] }
 wav = "1.0.0"
 
 [features]

candle-examples/examples/bert/main.rs

@@ -5,7 +5,7 @@ extern crate intel_mkl_src;
 
 use anyhow::{anyhow, Error as E, Result};
 use candle::{safetensors::SafeTensors, DType, Device, Shape, Tensor};
-use candle_hub::{api::Api, Cache, Repo, RepoType};
+use candle_hub::{api::sync::Api, Cache, Repo, RepoType};
 use clap::Parser;
 use serde::Deserialize;
 use std::collections::HashMap;
@@ -645,7 +645,7 @@ struct Args {
 }
 
 impl Args {
-    async fn build_model_and_tokenizer(&self) -> Result<(BertModel, Tokenizer)> {
+    fn build_model_and_tokenizer(&self) -> Result<(BertModel, Tokenizer)> {
         let device = if self.cpu {
             Device::Cpu
         } else {
@@ -677,9 +677,9 @@ impl Args {
         } else {
             let api = Api::new()?;
             (
-                api.get(&repo, "config.json").await?,
-                api.get(&repo, "tokenizer.json").await?,
-                api.get(&repo, "model.safetensors").await?,
+                api.get(&repo, "config.json")?,
+                api.get(&repo, "tokenizer.json")?,
+                api.get(&repo, "model.safetensors")?,
             )
         };
         let config = std::fs::read_to_string(config_filename)?;
@@ -694,12 +694,11 @@ impl Args {
     }
 }
 
-#[tokio::main]
-async fn main() -> Result<()> {
+fn main() -> Result<()> {
     let start = std::time::Instant::now();
 
     let args = Args::parse();
-    let (model, mut tokenizer) = args.build_model_and_tokenizer().await?;
+    let (model, mut tokenizer) = args.build_model_and_tokenizer()?;
     let device = &model.device;
 
     if let Some(prompt) = args.prompt {

candle-examples/examples/llama/main.rs

@@ -19,7 +19,7 @@ use clap::Parser;
 use rand::{distributions::Distribution, SeedableRng};
 
 use candle::{DType, Device, Tensor, D};
-use candle_hub::{api::Api, Repo, RepoType};
+use candle_hub::{api::sync::Api, Repo, RepoType};
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 
@@ -465,8 +465,7 @@ struct Args {
     prompt: Option<String>,
 }
 
-#[tokio::main]
-async fn main() -> Result<()> {
+fn main() -> Result<()> {
     use tokenizers::Tokenizer;
 
     let args = Args::parse();
@@ -489,13 +488,13 @@ async fn main() -> Result<()> {
             let api = Api::new()?;
             let repo = Repo::new("Narsil/amall-7b".to_string(), RepoType::Model);
             println!("building the model");
-            let tokenizer_filename = api.get(&repo, "tokenizer.json").await?;
+            let tokenizer_filename = api.get(&repo, "tokenizer.json")?;
             let mut filenames = vec![];
             for rfilename in [
                 "model-00001-of-00002.safetensors",
                 "model-00002-of-00002.safetensors",
             ] {
-                let filename = api.get(&repo, rfilename).await?;
+                let filename = api.get(&repo, rfilename)?;
                 filenames.push(filename);
             }
 

candle-examples/examples/whisper/main.rs

@@ -11,7 +11,7 @@ extern crate intel_mkl_src;
 
 use anyhow::{Error as E, Result};
 use candle::{DType, Device, Tensor};
-use candle_hub::{api::Api, Repo, RepoType};
+use candle_hub::{api::sync::Api, Repo, RepoType};
 use clap::Parser;
 use rand::{distributions::Distribution, SeedableRng};
 use tokenizers::Tokenizer;
@@ -253,8 +253,7 @@ struct Args {
     filters: String,
 }
 
-#[tokio::main]
-async fn main() -> Result<()> {
+fn main() -> Result<()> {
     let args = Args::parse();
     let device = if args.cpu {
         Device::Cpu
@@ -276,7 +275,7 @@ async fn main() -> Result<()> {
         config_filename.push("config.json");
         let mut tokenizer_filename = path.clone();
         tokenizer_filename.push("tokenizer.json");
-        let mut model_filename = path.clone();
+        let mut model_filename = path;
         model_filename.push("model.safetensors");
         (
             config_filename,
@@ -288,9 +287,9 @@ async fn main() -> Result<()> {
         let repo = Repo::with_revision(model_id, RepoType::Model, revision);
         let api = Api::new()?;
         (
-            api.get(&repo, "config.json").await?,
-            api.get(&repo, "tokenizer.json").await?,
-            api.get(&repo, "model.safetensors").await?,
+            api.get(&repo, "config.json")?,
+            api.get(&repo, "tokenizer.json")?,
+            api.get(&repo, "model.safetensors")?,
             if let Some(input) = args.input {
                 std::path::PathBuf::from(input)
             } else {
@@ -298,8 +297,7 @@ async fn main() -> Result<()> {
                 api.get(
                     &Repo::new("Narsil/candle-examples".to_string(), RepoType::Dataset),
                     "samples_jfk.wav",
-                )
-                .await?
+                )?
             },
         )
     };