Debian Changelog解析器

此crate提供了一个解析器，用于解析Debian/changelog文件，如Debian策略中所述，第4.4节。

解析器构建一个CST。它是无损的，即保留格式，并允许编辑和部分解析。

示例

use std::io::Read;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let file = std::fs::File::open("/usr/share/doc/rustc/changelog.Debian.gz")?;
    let mut gz = flate2::read::GzDecoder::new(file);
    let mut contents = String::new();
    gz.read_to_string(&mut contents)?;
    let changelog: debian_changelog::ChangeLog = contents.parse()?;
    for entry in changelog.entries() {
        println!(
            "{}: {}",
            entry.package().unwrap(),
            entry.version().unwrap().to_string()
        );
    }
    Ok(())
}

或更新现有的变更日志文件

use std::io::Read;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let file = std::fs::File::open("debian/changelog")?;
    let mut contents = String::new();
    file.read_to_string(&mut contents)?;
    let changelog: debian_changelog::ChangeLog = contents.parse()?;
    changelog.auto_add_change(
        &["* Make a change"],
        (
            "Jelmer Vernooij".to_string(),
            "[email protected]".to_string(),
        ),
        None,
        None,
    );
    std::fs::write("debian/changelog", changelog.to_string())?;
    Ok(())
}