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dynamic C lib now linking to onnxruntime
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| onnx_lib/ |
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| //! C API for interacting with the SurML file storage and executing models. | ||
| pub mod execution; | ||
| pub mod storage; | ||
| pub mod ml_sys; |
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| // use std::env; | ||
| // use std::fs; | ||
| // use std::path::Path; | ||
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| // /// works out where the `onnxruntime` library is in the build target and copies the library to the root | ||
| // /// of the crate so the core library can find it and load it into the binary using `include_bytes!()`. | ||
| // /// | ||
| // /// # Notes | ||
| // /// This is a workaround for the fact that `onnxruntime` doesn't support `cargo` yet. This build step | ||
| // /// is reliant on the `ort` crate downloading and building the `onnxruntime` library. This is | ||
| // /// why the following dependency is required in `Cargo.toml`: | ||
| // /// ```toml | ||
| // /// [build-dependencies] | ||
| // /// ort = { version = "1.16.2", default-features = true } | ||
| // /// ``` | ||
| // /// Here we can see that the `default-features` is set to `true`. This is because the `ort` crate will download | ||
| // /// the correct package and build it for the target platform by default. In the main part of our dependencies | ||
| // /// we have the following: | ||
| // /// ```toml | ||
| // /// [dependencies] | ||
| // /// ort = { version = "1.16.2", features = ["load-dynamic"], default-features = false } | ||
| // /// ``` | ||
| // /// Here we can see that the `default-features` is set to `false`. This is because we don't want the `ort` crate | ||
| // /// to download and build the `onnxruntime` library again. Instead we want to use the one that was built in the | ||
| // /// build step. We also set the `load-dynamic` feature to `true` so that the `ort` crate will load the `onnxruntime` | ||
| // /// library dynamically at runtime. This is because we don't want to statically link the `onnxruntime`. Our `onnxruntime` | ||
| // /// is embedded into the binary using `include_bytes!()` and we want to load it dynamically at runtime. This means that | ||
| // /// we do not need to move the `onnxruntime` library around with the binary, and there is no complicated setup required | ||
| // /// or linking. | ||
| // fn unpack_onnx() -> std::io::Result<()> { | ||
| // let out_dir = env::var("OUT_DIR").expect("OUT_DIR not set"); | ||
| // let out_path = Path::new(&out_dir); | ||
| // let build_dir = out_path | ||
| // .ancestors() // This gives an iterator over all ancestors of the path | ||
| // .nth(3) // 'nth(3)' gets the fourth ancestor (counting from 0), which should be the debug directory | ||
| // .expect("Failed to find debug directory"); | ||
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| // match std::env::var("ONNXRUNTIME_LIB_PATH") { | ||
| // Ok(onnx_path) => { | ||
| // println!("Surrealml Core Debug: ONNXRUNTIME_LIB_PATH set at: {}", onnx_path); | ||
| // println!("cargo:rustc-cfg=onnx_runtime_env_var_set"); | ||
| // } | ||
| // Err(_) => { | ||
| // println!("Surrealml Core Debug: ONNXRUNTIME_LIB_PATH not set"); | ||
| // let target_lib = match env::var("CARGO_CFG_TARGET_OS").unwrap() { | ||
| // ref s if s.contains("linux") => "libonnxruntime.so", | ||
| // ref s if s.contains("macos") => "libonnxruntime.dylib", | ||
| // ref s if s.contains("windows") => "onnxruntime.dll", | ||
| // // ref s if s.contains("android") => "android", => not building for android | ||
| // _ => panic!("Unsupported target os"), | ||
| // }; | ||
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| // let lib_path = build_dir.join(target_lib); | ||
| // let lib_path = lib_path.to_str().unwrap(); | ||
| // println!("Surrealml Core Debug: lib_path={}", lib_path); | ||
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| // // Check if the path exists | ||
| // if fs::metadata(lib_path).is_ok() { | ||
| // println!("Surrealml Core Debug: lib_path exists"); | ||
| // } else { | ||
| // println!("Surrealml Core Debug: lib_path does not exist"); | ||
| // // Extract the directory path | ||
| // if let Some(parent) = std::path::Path::new(lib_path).parent() { | ||
| // // Print the contents of the directory | ||
| // match fs::read_dir(parent) { | ||
| // Ok(entries) => { | ||
| // println!("Surrealml Core Debug: content of directory {}", parent.display()); | ||
| // for entry in entries { | ||
| // if let Ok(entry) = entry { | ||
| // println!("{}", entry.path().display()); | ||
| // } | ||
| // } | ||
| // } | ||
| // Err(e) => { | ||
| // println!("Surrealml Core Debug: Failed to read directory {}: {}", parent.display(), e); | ||
| // } | ||
| // } | ||
| // } else { | ||
| // println!("Surrealml Core Debug: Could not determine the parent directory of the path."); | ||
| // } | ||
| // } | ||
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| // // put it next to the file of the embedding | ||
| // let destination = Path::new(target_lib); | ||
| // fs::copy(lib_path, destination)?; | ||
| // println!("Surrealml Core Debug: onnx lib copied from {} to {}", lib_path, destination.display()); | ||
| // } | ||
| // } | ||
| // Ok(()) | ||
| // } | ||
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| // fn main() -> std::io::Result<()> { | ||
| // if std::env::var("DOCS_RS").is_ok() { | ||
| // // we are not going to be anything here for docs.rs, because we are merely building the docs. When we are just building | ||
| // // the docs, the onnx environment variable will not look for the `onnxruntime` library, so we don't need to unpack it. | ||
| // return Ok(()); | ||
| // } | ||
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| // if env::var("ORT_STRATEGY").as_deref() == Ok("system") { | ||
| // // If the ORT crate is built with the `system` strategy, then the crate will take care of statically linking the library. | ||
| // // No need to do anything here. | ||
| // println!("cargo:rustc-cfg=onnx_statically_linked"); | ||
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| // return Ok(()); | ||
| // } | ||
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| // unpack_onnx()?; | ||
| // Ok(()) | ||
| // } | ||
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| fn main() { | ||
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| } | ||
| } |
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