21 lines
887 B
Rust
21 lines
887 B
Rust
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use anyhow::{Result, bail};
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use regex::Regex;
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/// Resolves the latest release tag for `repo` via its public Atom feed.
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///
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/// Deliberately not a full XML parse: the feed's newest entry is always
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/// first, and its `<link rel="alternate" .../releases/tag/<tag>"/>` is the
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/// first such link in the document, so a single regex match is sufficient.
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/// Revisit with a real XML parser if GitHub's feed shape ever changes.
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pub fn latest_github_release(client: &reqwest::blocking::Client, repo: &str) -> Result<String> {
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let url = format!("https://github.com/{repo}/releases.atom");
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let body = client.get(&url).send()?.error_for_status()?.text()?;
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let pattern = format!(r#"releases/tag/([^"]+)""#);
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let re = Regex::new(&pattern)?;
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match re.captures(&body) {
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Some(caps) => Ok(caps[1].to_string()),
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None => bail!("no release tag found in {url}"),
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}
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}
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