github source v1

crates/aim-core/src/metadata/zsync.rs

@@ -0,0 +1,38 @@
+use crate::domain::update::{MetadataHints, ParsedMetadata, ParsedMetadataKind};
+use crate::metadata::document::MetadataDocument;
+
+pub fn parse(document: &MetadataDocument) -> ParsedMetadata {
+    let contents = String::from_utf8_lossy(&document.contents);
+    let url = extract_field(&contents, "URL:");
+    let filename = extract_field(&contents, "Filename:");
+
+    ParsedMetadata {
+        kind: ParsedMetadataKind::Zsync,
+        hints: MetadataHints {
+            version: filename
+                .as_ref()
+                .and_then(|value| version_from_filename(value)),
+            primary_download: url.or(filename),
+            checksum: None,
+            architecture: Some("x86_64".to_owned()),
+            channel_label: Some("zsync".to_owned()),
+        },
+        warnings: Vec::new(),
+        confidence: 75,
+    }
+}
+
+fn extract_field(contents: &str, prefix: &str) -> Option<String> {
+    contents
+        .lines()
+        .find_map(|line| line.trim().strip_prefix(prefix).map(str::trim))
+        .filter(|value| !value.is_empty())
+        .map(ToOwned::to_owned)
+}
+
+fn version_from_filename(filename: &str) -> Option<String> {
+    filename
+        .split('-')
+        .find(|segment| segment.chars().any(|ch| ch.is_ascii_digit()) && segment.contains('.'))
+        .map(|value| value.trim_end_matches(".AppImage").to_owned())
+}