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82 lines
3 KiB
Rust
82 lines
3 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint.dev>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
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use std::env;
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use std::path::PathBuf;
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use android_build::{Dexer, JavaBuild};
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fn main() {
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if !env::var("TARGET").unwrap().contains("android") {
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return;
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}
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let release_mode = env::var("PROFILE").as_ref().map(|s| s.as_str()) == Ok("release");
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// This is the only Java source file
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let java_src = "SlintAndroidJavaHelper.java";
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let java_src_path = format!("java/{java_src}");
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let slint_path: PathBuf = ["dev", "slint", "android-activity"].iter().collect();
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let out_dir: PathBuf = env::var_os("OUT_DIR").unwrap().into();
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let mut out_class_dir = out_dir.clone();
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out_class_dir.push("java");
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out_class_dir.push(slint_path);
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if out_class_dir.try_exists().unwrap_or(false) {
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let _ = std::fs::remove_dir_all(&out_class_dir);
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}
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std::fs::create_dir_all(&out_class_dir)
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.unwrap_or_else(|e| panic!("Cannot create output directory {out_class_dir:?} - {e}"));
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let android_jar = android_build::android_jar(None).expect("No Android platforms found");
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// Compile the Java file into .class files
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let o = JavaBuild::new()
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.file(&java_src_path)
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.class_path(&android_jar)
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.classes_out_dir(&out_class_dir)
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.java_source_version(8)
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.java_target_version(8)
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.debug_info(android_build::DebugInfo {
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line_numbers: !release_mode,
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variables: !release_mode,
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source_files: !release_mode,
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})
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.command()
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.unwrap_or_else(|e| panic!("Could not generate the java compiler command: {e}"))
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.args(["-encoding", "UTF-8"])
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.output()
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.unwrap_or_else(|e| panic!("Could not run the java compiler: {e}"));
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if !o.status.success() {
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panic!("Java compilation failed: {}", String::from_utf8_lossy(&o.stderr));
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}
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let o = Dexer::new()
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.android_jar(&android_jar)
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.class_path(&out_class_dir)
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.collect_classes(&out_class_dir)
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.unwrap()
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.release(release_mode)
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.android_min_api(20) // disable multidex for single dex file output
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.out_dir(out_dir)
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.command()
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.unwrap_or_else(|e| panic!("Could not generate the D8 command: {e}"))
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.output()
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.unwrap_or_else(|e| panic!("Error running D8: {e}"));
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if !o.status.success() {
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eprintln!("Dex conversion failed: {}", String::from_utf8_lossy(&o.stderr));
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let javac = android_build::javac().unwrap();
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let java_ver = android_build::check_javac_version(&javac).unwrap();
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if java_ver >= 21 {
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eprintln!("WARNING: JDK version 21 is known to cause an error with older android SDK");
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eprintln!("See https://github.com/slint-ui/slint/issues/4973");
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eprintln!("Try downgrading your version of Java to something like JDK 17, or upgrade to the SDK build tools 35");
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}
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panic!("Dex conversion failed");
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}
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println!("cargo:rerun-if-changed={java_src_path}");
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}
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