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// Copyright 2022 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
use std::path::Path;
use std::process::Command;
use anyhow::{bail, ensure, Result};
const LLVM_ANDROID_REL_PATH: &str = "toolchain/llvm_android";
/// Return the Android checkout's current llvm version.
///
/// This uses android_version.get_svn_revision_number, a python function
/// that can't be executed directly. We spawn a Python3 program
/// to run it and get the result from that.
pub fn get_android_llvm_version(android_checkout: &Path) -> Result<String> {
let mut command = new_android_cmd(android_checkout, "python3")?;
command.args([
"-c",
"import android_version; print(android_version.get_svn_revision_number(), end='')",
]);
let output = command.output()?;
if !output.status.success() {
bail!(
"could not get android llvm version: {}",
String::from_utf8_lossy(&output.stderr)
);
}
let out_string = String::from_utf8(output.stdout)?.trim().to_string();
Ok(out_string)
}
/// Sort the Android patches using the cherrypick_cl.py Android utility.
///
/// This assumes that:
/// 1. There exists a python script called cherrypick_cl.py
/// 2. That calling it with the given arguments sorts the PATCHES.json file.
/// 3. Calling it does nothing besides sorting the PATCHES.json file.
///
/// We aren't doing our own sorting because we shouldn't have to update patch_sync along
/// with cherrypick_cl.py any time they change the __lt__ implementation.
pub fn sort_android_patches(android_checkout: &Path) -> Result<()> {
let mut command = new_android_cmd(android_checkout, "python3")?;
command.args(["cherrypick_cl.py", "--reason", "patch_sync sorting"]);
let output = command.output()?;
if !output.status.success() {
bail!(
"could not sort: {}",
String::from_utf8_lossy(&output.stderr)
);
}
Ok(())
}
fn new_android_cmd(android_checkout: &Path, cmd: &str) -> Result<Command> {
let mut command = Command::new(cmd);
let llvm_android_dir = android_checkout.join(LLVM_ANDROID_REL_PATH);
ensure!(
llvm_android_dir.is_dir(),
"can't make android command; {} is not a directory",
llvm_android_dir.display()
);
command.current_dir(llvm_android_dir);
Ok(command)
}
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