- first commit

build.rs

@@ -0,0 +1,90 @@
+use anyhow::{Error, Result};
+use std::env;
+use std::fs::OpenOptions;
+use std::io::{Read, Seek, Write};
+use std::path::PathBuf;
+
+fn main() -> Result<()> {
+    if env::var("DOCS_RS").is_err() {
+        let out_dir = PathBuf::from(env::var("OUT_DIR")?).canonicalize()?;
+        let libczi_dir = out_dir.join("libczirw");
+        let rep = if !libczi_dir.exists() {
+            git2::Repository::clone("https://github.com/ZEISS/libczi.git", &libczi_dir)
+                .expect("unable to clone libczirw")
+        } else {
+            git2::Repository::open(&libczi_dir)?
+        };
+        let (object, _) = rep.revparse_ext("494ac62f853de6ab86458f167fd85a03ee6d4f7e")?;
+        rep.checkout_tree(&object, None)?;
+
+        let dst = cmake::Config::new(&libczi_dir)
+            .define("LIBCZI_BUILD_UNITTESTS", "OFF")
+            .define("LIBCZI_BUILD_CZICMD", "OFF")
+            .define("LIBCZI_BUILD_DYNLIB", "OFF")
+            .define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_EIGEN3", "OFF")
+            .define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_ZSTD", "OFF")
+            .define("LIBCZI_BUILD_CURL_BASED_STREAM", "OFF")
+            .define("LIBCZI_BUILD_PREFER_EXTERNAL_PACKAGE_LIBCURL", "OFF")
+            .define("LIBCZI_BUILD_AZURESDK_BASED_STREAM", "OFF")
+            .define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_RAPIDJSON", "OFF")
+            .define("LIBCZI_BUILD_LIBCZIAPI", "ON")
+            .build();
+
+        let libczi_src = libczi_dir.join("Src/libCZI");
+        let libcziapi_inc = libczi_dir.join("Src/libCZIAPI/inc");
+        let libcziapi_src = libczi_dir.join("Src/libCZIAPI/src");
+        let libczi_h = libcziapi_inc.join("libCZIApi.h");
+
+        let import_export = libczi_dir.join("Src/libCZIAPI/inc/importexport.h");
+        {
+            let mut file = OpenOptions::new()
+                .read(true)
+                .write(true)
+                .open(&import_export)
+                .expect("Could not open file");
+
+            let mut data = String::new();
+            file.read_to_string(&mut data).expect("Could not read file");
+            let data = data.replace(" __declspec(dllexport)", "");
+            let bytes = data.as_bytes();
+            (&file).rewind().expect("Could not rewind");
+            (&file).write_all(bytes).expect("Could not write file");
+            file.set_len(bytes.len() as u64)
+                .expect("Could not truncate");
+        };
+
+        let bindings = bindgen::Builder::default()
+            .clang_args([
+                "-x",
+                "c++",
+                "-std=c++14",
+                "-I",
+                libcziapi_inc
+                    .to_str()
+                    .ok_or(Error::msg("cannot into string"))?,
+                "-I",
+                libcziapi_src
+                    .to_str()
+                    .ok_or(Error::msg("cannot into string"))?,
+                "-I",
+                libczi_src
+                    .to_str()
+                    .ok_or(Error::msg("cannot into string"))?,
+            ])
+            .header(libczi_h.to_str().ok_or(Error::msg("cannot into string"))?)
+            .generate()
+            .expect("Unable to generate bindings");
+
+        bindings
+            .write_to_file(out_dir.join("lib_czi_api.rs"))
+            .expect("Couldn't write bindings!");
+        
+        println!(
+            "cargo:rustc-link-search=native={}",
+            dst.join("build/Src/libCZIAPI").display()
+        );
+        println!("cargo:rustc-link-lib=libCZIAPI");
+    }
+    println!("cargo::rerun-if-changed=build.rs");
+    Ok(())
+}