Simplify build script with cmake crate (#2099)

This also implements everything that is needed for cross-compilation to
various targets (including mobile).

Fixes encryption build for all targets:
https://github.com/tursodatabase/libsql-c/actions/runs/15577857992

Author: levydsa

Cargo.lock

@@ -18,6 +18,7 @@ exclude = [
 libsql-wasmtime-bindings = { version = "0.2.1", optional = true }
 
 [build-dependencies]
+cmake = "0.1.54"
 bindgen = "0.66.1"
 cc = "1.0"
 glob = "0.3"

libsql-ffi/Cargo.toml

@@ -1,8 +1,8 @@
 use glob::glob;
 use std::env;
 use std::ffi::OsString;
-use std::fs::{self, OpenOptions};
-use std::io::{self, Write};
+use std::fs;
+use std::io;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
@@ -29,7 +29,7 @@ fn main() {
 
     if std::env::var("LIBSQL_DEV").is_ok() {
         make_amalgamation();
-        build_multiple_ciphers(&target, &out_path);
+        build_multiple_ciphers(&out_path);
     }
 
     let bindgen_rs_path = if cfg!(feature = "session") {
@@ -50,7 +50,7 @@ fn main() {
     }
 
     if cfg!(feature = "multiple-ciphers") {
-        copy_multiple_ciphers(&target, &out_dir, &out_path);
+        copy_multiple_ciphers(&out_path);
         return;
     }
 
@@ -409,18 +409,22 @@ pub fn build_bundled(out_dir: &str, out_path: &Path) {
     println!("cargo:lib_dir={out_dir}");
 }
 
-fn copy_multiple_ciphers(target: &str, out_dir: &str, out_path: &Path) {
-    let dylib = format!("{out_dir}/sqlite3mc/libsqlite3mc_static.a");
-    if !Path::new(&dylib).exists() {
-        build_multiple_ciphers(target, out_path);
-    }
+fn copy_multiple_ciphers(out_path: &Path) {
+    let dst = dbg!(build_multiple_ciphers(out_path));
 
-    copy_with_cp(dylib, format!("{out_dir}/libsqlite3mc.a")).unwrap();
-    println!("cargo:rustc-link-lib=static=sqlite3mc");
-    println!("cargo:rustc-link-search={out_dir}");
+    println!("cargo:rustc-link-search={}", dst.join("build").display());
+    println!(
+        "cargo:rustc-link-search={}",
+        dst.join("build").join("Release").display()
+    );
+    println!(
+        "cargo:rustc-link-search={}",
+        dst.join("build").join("Debug").display()
+    );
+    println!("cargo:rustc-link-lib=static=sqlite3mc_static");
 }
 
-fn build_multiple_ciphers(target: &str, out_path: &Path) {
+fn build_multiple_ciphers(out_path: &Path) -> PathBuf {
     let bindgen_rs_path = if cfg!(feature = "session") {
         "bundled/bindings/session_bindgen.rs"
     } else {
@@ -450,112 +454,33 @@ fn build_multiple_ciphers(target: &str, out_path: &Path) {
     .unwrap();
 
     let bundled_dir = format!("{out_dir}/sqlite3mc");
-    let sqlite3mc_build_dir = env::current_dir().unwrap().join(out_dir).join("sqlite3mc");
-
-    let mut cmake_opts: Vec<&str> = vec![];
 
-    let target_postfix = target.to_string().replace("-", "_");
-    let cross_cc_var_name = format!("CC_{}", target_postfix);
-    println!("cargo:warning=CC_var_name={}", cross_cc_var_name);
-    let cross_cc = env::var(&cross_cc_var_name).ok();
+    let mut config = cmake::Config::new(&bundled_dir);
+
+    config
+        .build_target("sqlite3mc_static")
+        .define("SQLITE3MC_STATIC", "ON")
+        .define("CODEC_TYPE", "AES256")
+        .define("SQLITE3MC_BUILD_SHELL", "OFF")
+        .define("SQLITE_SHELL_IS_UTF8", "OFF")
+        .define("SQLITE_USER_AUTHENTICATION", "OFF")
+        .define("SQLITE_SECURE_DELETE", "OFF")
+        .define("SQLITE_ENABLE_COLUMN_METADATA", "ON")
+        .define("SQLITE_USE_URI", "ON")
+        .define("CMAKE_POSITION_INDEPENDENT_CODE", "ON")
+        .profile("Release");
 
-    let cross_cxx_var_name = format!("CXX_{}", target_postfix);
-    let cross_cxx = env::var(&cross_cxx_var_name).ok();
-
-    let toolchain_path = sqlite3mc_build_dir.join("toolchain.cmake");
-    let cmake_toolchain_opt = "-DCMAKE_TOOLCHAIN_FILE=toolchain.cmake".to_string();
-
-    let mut toolchain_file = OpenOptions::new()
-        .create(true)
-        .write(true)
-        .append(true)
-        .open(toolchain_path.clone())
-        .unwrap();
-
-    if let Some(ref cc) = cross_cc {
-        let system_name = if cc.contains("linux") {
-            "Linux"
-        } else if cc.contains("darwin") {
-            "Darwin"
-        } else if cc.contains("w64") {
-            "Windows"
-        } else {
-            panic!("Unsupported cross target {}", cc)
-        };
-
-        let system_processor = if cc.contains("x86_64") {
-            "x86_64"
-        } else if cc.contains("aarch64") {
-            "arm64"
-        } else if cc.contains("arm") {
-            "arm"
-        } else {
-            panic!("Unsupported cross target {}", cc)
-        };
-
-        cmake_opts.push(&cmake_toolchain_opt);
-        writeln!(toolchain_file, "set(CMAKE_SYSTEM_NAME \"{}\")", system_name).unwrap();
-        writeln!(
-            toolchain_file,
-            "set(CMAKE_SYSTEM_PROCESSOR \"{}\")",
-            system_processor
-        )
-        .unwrap();
-        writeln!(toolchain_file, "set(CMAKE_C_COMPILER {})", cc).unwrap();
-    }
-
-    if let Some(cxx) = cross_cxx {
-        writeln!(toolchain_file, "set(CMAKE_CXX_COMPILER {})", cxx).unwrap();
-    }
-
-    cmake_opts.push("-DCMAKE_BUILD_TYPE=Release");
-    cmake_opts.push("-DSQLITE3MC_STATIC=ON");
-    cmake_opts.push("-DCODEC_TYPE=AES256");
-    cmake_opts.push("-DSQLITE3MC_BUILD_SHELL=OFF");
-    cmake_opts.push("-DSQLITE_SHELL_IS_UTF8=OFF");
-    cmake_opts.push("-DSQLITE_USER_AUTHENTICATION=OFF");
-    cmake_opts.push("-DSQLITE_SECURE_DELETE=OFF");
-    cmake_opts.push("-DSQLITE_ENABLE_COLUMN_METADATA=ON");
-    cmake_opts.push("-DSQLITE_USE_URI=ON");
-    cmake_opts.push("-DCMAKE_POSITION_INDEPENDENT_CODE=ON");
-
-    if target.contains("musl") {
-        cmake_opts.push("-DCMAKE_C_FLAGS=\"-U_FORTIFY_SOURCE\" -D_FILE_OFFSET_BITS=32");
-        cmake_opts.push("-DCMAKE_CXX_FLAGS=\"-U_FORTIFY_SOURCE\" -D_FILE_OFFSET_BITS=32");
-    }
-
-    let mut cmake = Command::new("cmake");
-    cmake.current_dir(sqlite3mc_build_dir.clone());
-    cmake.args(cmake_opts.clone());
-    cmake.arg(bundled_dir.clone());
     if cfg!(feature = "wasmtime-bindings") {
-        cmake.arg("-DLIBSQL_ENABLE_WASM_RUNTIME=1");
+        config.define("LIBSQL_ENABLE_WASM_RUNTIME", "1");
     }
+
     if cfg!(feature = "session") {
-        cmake.arg("-DSQLITE_ENABLE_PREUPDATE_HOOK=ON");
-        cmake.arg("-DSQLITE_ENABLE_SESSION=ON");
-    }
-    println!("Running `cmake` with options: {}", cmake_opts.join(" "));
-    let status = cmake.status().unwrap();
-    if !status.success() {
-        panic!("Failed to run cmake with options: {}", cmake_opts.join(" "));
-    }
-
-    let mut make = Command::new("cmake");
-    make.current_dir(sqlite3mc_build_dir.clone());
-    make.args(["--build", "."]);
-    make.args(["--config", "Release"]);
-    if !make.status().unwrap().success() {
-        panic!("Failed to run make");
-    }
-    // The `msbuild` tool puts the output in a different place so let's move it.
-    if Path::exists(&sqlite3mc_build_dir.join("Release/sqlite3mc_static.lib")) {
-        fs::rename(
-            sqlite3mc_build_dir.join("Release/sqlite3mc_static.lib"),
-            sqlite3mc_build_dir.join("libsqlite3mc_static.a"),
-        )
-        .unwrap();
+        config
+            .define("SQLITE_ENABLE_PREUPDATE_HOOK", "ON")
+            .define("SQLITE_ENABLE_SESSION", "ON");
     }
+
+    config.build()
 }
 
 fn env(name: &str) -> Option<OsString> {