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use std::process::Command;
fn main() {
let output = Command::new("git")
.arg("for-each-ref")
.arg("refs/remotes/origin")
.arg("--format")
.arg("%(refname)")
.output()
.unwrap();
assert!(output.status.success());
let mut releases = std::str::from_utf8(&output.stdout)
.unwrap()
.lines()
.filter_map(|l| l.strip_prefix("refs/remotes/origin/release-"))
.filter_map(|l| {
let mut parts = l.split('.');
let major = parts.next()?.parse::<u32>().ok()?;
let minor = parts.next()?.parse::<u32>().ok()?;
let patch = parts.next()?.parse::<u32>().ok()?;
Some((major, minor, patch))
})
.collect::<Vec<_>>();
releases.sort();
let (major, minor, patch) = releases.last().unwrap();
println!("{}.{}.{}", major, minor, patch);
}
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