fix windows builds

1 files changed, 407 insertions, 0 deletions

diff --git a/bazel/patch/libsodium_sys_build_script_script_.rs b/bazel/patch/libsodium_sys_build_script_script_.rs
new file mode 100644
index 0000000..1b0b775
--- /dev/null
+++ b/bazel/patch/libsodium_sys_build_script_script_.rs
@@ -0,0 +1,407 @@
+#[cfg(not(windows))]
+extern crate cc;
+
+#[cfg(target_env = "msvc")]
+extern crate libc;
+
+extern crate pkg_config;
+extern crate walkdir;
+
+use std::{
+    env,
+    path::{Path, PathBuf},
+};
+
+static VERSION: &str = "1.0.18";
+
+fn main() {
+    println!("cargo:rerun-if-env-changed=SODIUM_LIB_DIR");
+    println!("cargo:rerun-if-env-changed=SODIUM_SHARED");
+    println!("cargo:rerun-if-env-changed=SODIUM_USE_PKG_CONFIG");
+
+    if cfg!(not(windows)) {
+        println!("cargo:rerun-if-env-changed=SODIUM_DISABLE_PIE");
+    }
+
+    if env::var("SODIUM_STATIC").is_ok() {
+        panic!("SODIUM_STATIC is deprecated. Use SODIUM_SHARED instead.");
+    }
+
+    let lib_dir_isset = env::var("SODIUM_LIB_DIR").is_ok();
+    let use_pkg_isset = if cfg!(feature = "use-pkg-config") {
+        true
+    } else {
+        env::var("SODIUM_USE_PKG_CONFIG").is_ok()
+    };
+    let shared_isset = env::var("SODIUM_SHARED").is_ok();
+
+    if lib_dir_isset && use_pkg_isset {
+        panic!("SODIUM_LIB_DIR is incompatible with SODIUM_USE_PKG_CONFIG. Set the only one env variable");
+    }
+
+    if lib_dir_isset {
+        find_libsodium_env();
+    } else if use_pkg_isset {
+        if shared_isset {
+            println!("cargo:warning=SODIUM_SHARED has no effect with SODIUM_USE_PKG_CONFIG");
+        }
+
+        find_libsodium_pkg();
+    } else {
+        if shared_isset {
+            println!(
+                "cargo:warning=SODIUM_SHARED has no effect for building libsodium from source"
+            );
+        }
+
+        build_libsodium();
+    }
+}
+
+/* Must be called when SODIUM_LIB_DIR is set to any value
+This function will set `cargo` flags.
+*/
+fn find_libsodium_env() {
+    let lib_dir = env::var("SODIUM_LIB_DIR").unwrap(); // cannot fail
+
+    println!("cargo:rustc-link-search=native={}", lib_dir);
+    let mode = if env::var("SODIUM_SHARED").is_ok() {
+        "dylib"
+    } else {
+        "static"
+    };
+    let name = if cfg!(target_env = "msvc") {
+        "libsodium"
+    } else {
+        "sodium"
+    };
+    println!("cargo:rustc-link-lib={}={}", mode, name);
+    println!(
+        "cargo:warning=Using unknown libsodium version.  This crate is tested against \
+         {} and may not be fully compatible with other versions.",
+        VERSION
+    );
+}
+
+/* Must be called when no SODIUM_USE_PKG_CONFIG env var is set
+This function will set `cargo` flags.
+*/
+#[cfg(target_env = "msvc")]
+fn find_libsodium_pkg() {
+    panic!("SODIUM_USE_PKG_CONFIG is not supported on msvc");
+}
+
+/* Must be called when SODIUM_USE_PKG_CONFIG env var is set
+This function will set `cargo` flags.
+*/
+#[cfg(not(target_env = "msvc"))]
+fn find_libsodium_pkg() {
+    match pkg_config::Config::new().probe("libsodium") {
+        Ok(lib) => {
+            if lib.version != VERSION {
+                println!(
+                    "cargo:warning=Using libsodium version {}.  This crate is tested against {} \
+                     and may not be fully compatible with {}.",
+                    lib.version, VERSION, lib.version
+                );
+            }
+            for lib_dir in &lib.link_paths {
+                println!("cargo:lib={}", lib_dir.to_str().unwrap());
+            }
+            for include_dir in &lib.include_paths {
+                println!("cargo:include={}", include_dir.to_str().unwrap());
+            }
+        }
+        Err(e) => {
+            panic!(
+                "
+Failed to run pkg-config:
+{:?}
+
+You can try fixing this by installing pkg-config:
+
+    # On Ubuntu
+    sudo apt install pkg-config
+    # On Arch Linux
+    sudo pacman -S pkgconf
+    # On Fedora
+    sudo dnf install pkgconf-pkg-config
+
+",
+                e
+            );
+        }
+    }
+}
+
+#[cfg(windows)]
+fn make_libsodium(_: &str, _: &Path, _: &Path) -> PathBuf {
+    // We don't build anything on windows, we simply linked to precompiled
+    // libs.
+    get_lib_dir()
+}
+
+#[cfg(not(windows))]
+fn make_libsodium(target: &str, source_dir: &Path, install_dir: &Path) -> PathBuf {
+    use std::{fs, process::Command, str};
+
+    // Decide on CC, CFLAGS and the --host configure argument
+    let build_compiler = cc::Build::new().get_compiler();
+    let mut compiler = build_compiler.path().to_str().unwrap().to_string();
+    let mut cflags = build_compiler.cflags_env().into_string().unwrap();
+    let mut host_arg = format!("--host={}", target);
+    let mut cross_compiling = target != env::var("HOST").unwrap();
+    if target.contains("-ios") {
+        // Determine Xcode directory path
+        let xcode_select_output = Command::new("xcode-select").arg("-p").output().unwrap();
+        if !xcode_select_output.status.success() {
+            panic!("Failed to run xcode-select -p");
+        }
+        let xcode_dir = str::from_utf8(&xcode_select_output.stdout)
+            .unwrap()
+            .trim()
+            .to_string();
+
+        // Determine SDK directory paths
+        let sdk_dir_simulator = Path::new(&xcode_dir)
+            .join("Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk")
+            .to_str()
+            .unwrap()
+            .to_string();
+        let sdk_dir_ios = Path::new(&xcode_dir)
+            .join("Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk")
+            .to_str()
+            .unwrap()
+            .to_string();
+
+        // Min versions
+        let ios_simulator_version_min = "6.0.0";
+        let ios_version_min = "6.0.0";
+
+        // Roughly based on `dist-build/ios.sh` in the libsodium sources
+        match &*target {
+            "aarch64-apple-ios" => {
+                cflags += " -arch arm64";
+                cflags += &format!(" -isysroot {}", sdk_dir_ios);
+                cflags += &format!(" -mios-version-min={}", ios_version_min);
+                cflags += " -fembed-bitcode";
+                host_arg = "--host=arm-apple-darwin10".to_string();
+            }
+            "armv7-apple-ios" => {
+                cflags += " -arch armv7";
+                cflags += &format!(" -isysroot {}", sdk_dir_ios);
+                cflags += &format!(" -mios-version-min={}", ios_version_min);
+                cflags += " -mthumb";
+                host_arg = "--host=arm-apple-darwin10".to_string();
+            }
+            "armv7s-apple-ios" => {
+                cflags += " -arch armv7s";
+                cflags += &format!(" -isysroot {}", sdk_dir_ios);
+                cflags += &format!(" -mios-version-min={}", ios_version_min);
+                cflags += " -mthumb";
+                host_arg = "--host=arm-apple-darwin10".to_string();
+            }
+            "i386-apple-ios" => {
+                cflags += " -arch i386";
+                cflags += &format!(" -isysroot {}", sdk_dir_simulator);
+                cflags += &format!(" -mios-simulator-version-min={}", ios_simulator_version_min);
+                host_arg = "--host=i686-apple-darwin10".to_string();
+            }
+            "x86_64-apple-ios" => {
+                cflags += " -arch x86_64";
+                cflags += &format!(" -isysroot {}", sdk_dir_simulator);
+                cflags += &format!(" -mios-simulator-version-min={}", ios_simulator_version_min);
+                host_arg = "--host=x86_64-apple-darwin10".to_string();
+            }
+            _ => panic!("Unknown iOS build target: {}", target),
+        }
+        cross_compiling = true;
+    } else if target.contains("i686") {
+        compiler += " -m32 -maes";
+        cflags += " -march=i686";
+    }
+
+    let help = if cross_compiling {
+        "***********************************************************\n\
+         Possible missing dependencies.\n\
+         See https://github.com/sodiumoxide/sodiumoxide#cross-compiling\n\
+         ***********************************************************\n\n"
+    } else {
+        ""
+    };
+
+    // Run `./configure`
+    let prefix_arg = format!("--prefix={}", install_dir.to_str().unwrap());
+    let libdir_arg = format!("--libdir={}/lib", install_dir.to_str().unwrap());
+    let mut configure_cmd = Command::new(fs::canonicalize(source_dir.join("configure")).expect("Failed to find configure script! Did you clone the submodule at `libsodium-sys/libsodium`?"));
+    if !compiler.is_empty() {
+        configure_cmd.env("CC", &compiler);
+    }
+    if !cflags.is_empty() {
+        configure_cmd.env("CFLAGS", &cflags);
+    }
+    if env::var("SODIUM_DISABLE_PIE").is_ok() {
+        configure_cmd.arg("--disable-pie");
+    }
+    let configure_status = configure_cmd
+        .current_dir(&source_dir)
+        .arg(&prefix_arg)
+        .arg(&libdir_arg)
+        .arg(&host_arg)
+        .arg("--enable-shared=no")
+        .status()
+        .unwrap_or_else(|error| {
+            panic!("Failed to run './configure': {}\n{}", error, help);
+        });
+    if !configure_status.success() {
+        panic!(
+            "\nFailed to configure libsodium using {:?}\nCFLAGS={}\nCC={}\n{}\n",
+            configure_cmd, cflags, compiler, help
+        );
+    }
+
+    // Run `make check`, or `make all` if we're cross-compiling
+    let j_arg = format!("-j{}", env::var("NUM_JOBS").unwrap());
+    let make_arg = if cross_compiling { "all" } else { "check" };
+    let mut make_cmd = Command::new("make");
+    let make_status = make_cmd
+        .current_dir(&source_dir)
+        .env("V", "1")
+        .arg(make_arg)
+        .arg(&j_arg)
+        .status()
+        .unwrap_or_else(|error| {
+            panic!("Failed to run 'make {}': {}\n{}", make_arg, error, help);
+        });
+    if !make_status.success() {
+        panic!("\nFailed to build libsodium using {:?}\n{}", make_cmd, help);
+    }
+
+    // Run `make install`
+    let mut install_cmd = Command::new("make");
+    let install_status = install_cmd
+        .current_dir(&source_dir)
+        .arg("install")
+        .status()
+        .unwrap_or_else(|error| {
+            panic!("Failed to run 'make install': {}", error);
+        });
+    if !install_status.success() {
+        panic!("\nFailed to install libsodium using {:?}", install_cmd);
+    }
+
+    install_dir.join("lib")
+}
+
+#[cfg(any(windows, target_env = "msvc"))]
+fn get_crate_dir() -> PathBuf {
+    env::var("CARGO_MANIFEST_DIR").unwrap().into()
+}
+
+#[cfg(target_env = "msvc")]
+fn is_release_profile() -> bool {
+    env::var("PROFILE").unwrap() == "release"
+}
+
+#[cfg(all(target_env = "msvc", target_pointer_width = "32"))]
+fn get_lib_dir() -> PathBuf {
+    if is_release_profile() {
+        get_crate_dir().join("msvc/Win32/Release/v142/")
+    } else {
+        get_crate_dir().join("msvc/Win32/Debug/v142/")
+    }
+}
+
+#[cfg(all(target_env = "msvc", target_pointer_width = "64"))]
+fn get_lib_dir() -> PathBuf {
+    if is_release_profile() {
+        get_crate_dir().join("msvc/x64/Release/v142/")
+    } else {
+        get_crate_dir().join("msvc/x64/Debug/v142/")
+    }
+}
+
+#[cfg(all(windows, not(target_env = "msvc"), target_pointer_width = "32"))]
+fn get_lib_dir() -> PathBuf {
+    get_crate_dir().join("mingw/win32/")
+}
+
+#[cfg(all(windows, not(target_env = "msvc"), target_pointer_width = "64"))]
+fn get_lib_dir() -> PathBuf {
+    get_crate_dir().join("mingw/win64/")
+}
+
+fn build_libsodium() {
+    use std::{ffi::OsStr, fs};
+
+    // Determine build target triple
+    let mut out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
+    let target = env::var("TARGET").unwrap();
+    let profile = env::var("PROFILE").unwrap();
+
+    // Avoid issues with paths containing spaces by falling back to using a tempfile.
+    // See https://github.com/jedisct1/libsodium/issues/207
+    if out_dir.to_str().unwrap().contains(' ') {
+        out_dir = env::temp_dir()
+            .join("libsodium-sys")
+            .join(&target)
+            .join(&profile);
+        println!(
+            "cargo:warning=The path to the usual build directory contains spaces and hence \
+             can't be used to build libsodium.  Falling back to use {}.  If running `cargo \
+             clean`, ensure you also delete this fallback directory",
+            out_dir.display()
+        );
+    }
+
+    // Determine source and install dir
+    let install_dir = out_dir.join("installed");
+    let source_dir = out_dir.join("source").join("libsodium");
+
+    // Create directories
+    fs::create_dir_all(&install_dir).unwrap();
+    fs::create_dir_all(&source_dir).unwrap();
+
+    let paths = std::fs::read_dir("./libsodium").unwrap();
+
+    for path in paths {
+        println!("Name: {}", path.unwrap().path().display())
+    }
+
+    if !target.contains("msvc") {
+        // Copy sources into build directory
+        // Skip .git because it's marked read-only and that causes problems re-building
+        for entry in walkdir::WalkDir::new("libsodium")
+        .into_iter()
+        .filter_entry(|e| e.file_name() != OsStr::new(".git"))
+        .filter_map(Result::ok)
+    {
+        let outpath = out_dir.join("source").join(entry.path());
+        if let Err(e) = if entry.file_type().is_dir() {
+            fs::create_dir_all(outpath)
+        } else {
+            fs::copy(entry.path(), outpath).map(|_| ())
+        } {
+            panic!("Failed to copy sources into build directory: {}", e);
+        }
+    }
+    }
+
+    let lib_dir = make_libsodium(&target, &source_dir, &install_dir);
+
+    if target.contains("msvc") {
+        println!("cargo:rustc-link-lib=static=libsodium");
+    } else {
+        println!("cargo:rustc-link-lib=static=sodium");
+    }
+
+    println!(
+        "cargo:rustc-link-search=native={}",
+        lib_dir.to_str().unwrap()
+    );
+
+    let include_dir = source_dir.join("src/libsodium/include");
+
+    println!("cargo:include={}", include_dir.to_str().unwrap());
+    println!("cargo:lib={}", lib_dir.to_str().unwrap());
+}