feat(plugins): redesign plugin manager

src/plugin/marketplace.rs

@@ -148,6 +148,20 @@ pub fn fetch_releases(repo: &str) -> Result<Vec<Release>, String> {
     Ok(out)
 }
 
+/// Fetch the repository README from its default branch as raw Markdown.
+pub fn fetch_readme(repo: &str) -> Result<String, String> {
+    let url = format!("https://api.github.com/repos/{repo}/readme");
+    agent()
+        .get(&url)
+        .header("User-Agent", UA)
+        .header("Accept", "application/vnd.github.raw+json")
+        .call()
+        .map_err(|e| e.to_string())?
+        .body_mut()
+        .read_to_string()
+        .map_err(|e| e.to_string())
+}
+
 fn download_string(url: &str) -> Result<String, String> {
     agent()
         .get(url)
@@ -176,7 +190,7 @@ fn download_bytes(url: &str) -> Result<Vec<u8>, String> {
 /// Download and install a release's package into the plugins folder. Verifies
 /// the API version from the package's `plugin.toml` first. Returns the plugin
 /// id on success.
-pub fn install(release: &Release) -> Result<String, String> {
+pub fn install(release: &Release, repository: &str) -> Result<String, String> {
     let lib = release.lib_asset().ok_or("no library for this platform")?;
     let toml = release.toml_asset().ok_or("release has no plugin.toml")?;
 
@@ -199,6 +213,8 @@ pub fn install(release: &Release) -> Result<String, String> {
     let bytes = download_bytes(&lib.url)?;
     replace_library(&dir, &lib.name, external_lib_ext(), &bytes)?;
     std::fs::write(dir.join("plugin.toml"), toml_text).map_err(|e| e.to_string())?;
+    std::fs::write(dir.join(".source_repo"), format!("{repository}\n"))
+        .map_err(|e| e.to_string())?;
     Ok(manifest.id)
 }