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Faster package count on Alpine Linux #170

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Jun 2, 2024
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Faster package count on Alpine Linux #170

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6 changes: 6 additions & 0 deletions src/linux/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -855,6 +855,12 @@ impl LinuxPackageReadout {
/// Returns the number of installed packages for systems
/// that utilize `apk` as their package manager.
fn count_apk() -> Option<usize> {
// faster method for alpine: count empty lines in /lib/apk/db/installed
if let Ok(content) = fs::read_to_string(Path::new("/lib/apk/db/installed")) {
return Some(content.lines().filter(|l| l.is_empty()).count());
}

// fallback to command invocation
if !extra::which("apk") {
return None;
}
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