1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
* Copyright (C) 2025 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//! `record-finalized-flags` is a tool to create a snapshot (intended to be stored in
//! prebuilts/sdk) of the flags used with @FlaggedApi APIs
use anyhow::Result;
use clap::Parser;
use std::{fs::File, path::PathBuf};
mod finalized_flags;
mod flag_report;
pub(crate) type FlagId = String;
const ABOUT: &str = "Create a new prebuilts/sdk/<version>/finalized-flags.txt file
The prebuilts/sdk/<version>/finalized-flags.txt files list all aconfig flags that have been used
with @FlaggedApi annotations on APIs that have been finalized. These files are used to prevent
flags from being re-used for new, unfinalized, APIs, and by the aconfig code generation.
This tool works as follows:
- Read the previous finalized-flags.txt files from prebuilts/sdk [--finalized-flags-file]
- Read the state of the currently flags in the source as generated by `metalava flag-report`, and
filter out the flags marked as finalized [--flag-report]
- Merge and sort the two inputs
- Print the set of flags to stdout
";
#[derive(Parser, Debug)]
#[clap(about=ABOUT)]
struct Cli {
#[arg(long)]
finalized_flags: PathBuf,
#[arg(long)]
flag_report: PathBuf,
}
fn main() -> Result<()> {
let args = Cli::parse();
let file = File::open(args.finalized_flags)?;
let already_finalized_flags = finalized_flags::read_finalized_flags(file)?;
let file = File::open(args.flag_report)?;
let newly_finalized_flags = flag_report::read_and_filter_flag_report(file)?;
let mut all_finalized_flags: Vec<_> =
already_finalized_flags.union(&newly_finalized_flags).map(|s| s.to_owned()).collect();
all_finalized_flags.sort();
println!("{}", all_finalized_flags.join("\n"));
Ok(())
}
|
