feat: support short git URLs

Something like git@github.com:dadada/dadada.git

src/main.rs

@@ -55,7 +55,7 @@ fn main() -> Result<()> {
     match cli.command {
         Commands::Resolve { root, repo } => {
             let root = SrcRoot::new(resolve_root(root)?);
-            println!("{}", root.resolve_repo(repo)?.as_ref().display());
+            println!("{}", root.resolve_repo(repo.as_str())?.as_ref().display());
         }
         Commands::Setup { root } => {
             let root = resolve_root(root)?;

src/root.rs

@@ -75,12 +75,12 @@ impl SrcRoot {
 
     /// # Errors
     /// File system errors
-    pub fn resolve_repo(&self, arg: String) -> Result<impl AsRef<Path>> {
-        if let Ok(url) = Url::parse(&arg) {
-            self.ensure_repo_checkout(&url)
+    pub fn resolve_repo(&self, arg: &str) -> Result<impl AsRef<Path>> {
+        if let Some(found) = self.search_repo(arg)? {
+            Ok(found)
         } else {
-            let slug: OsString = arg.into();
-            self.search_repo(slug)?.context("Repo not found")
+            let url = normalize_url(arg)?;
+            self.ensure_repo_checkout(&url)
         }
     }
 
@@ -89,3 +89,34 @@ impl SrcRoot {
         Self { root_path: path }
     }
 }
+
+fn normalize_url(url: &str) -> Result<Url> {
+    match Url::parse(url) {
+        Ok(url) => Ok(url),
+        Err(e @ url::ParseError::RelativeUrlWithoutBase) => {
+            let normalized_url = &format!("ssh://{url}");
+            normalize_ssh(e, normalized_url)
+        }
+        Err(e @ url::ParseError::InvalidPort) => normalize_ssh(e, url),
+        Err(e) => Err(e.into()),
+    }
+}
+
+fn normalize_ssh(e: url::ParseError, url: &str) -> Result<Url> {
+    match Url::parse(url) {
+        Ok(o) => Ok(o),
+        Err(url::ParseError::InvalidPort) => {
+            let mut split = url.splitn(3, ':');
+            let mut normalized_url = String::with_capacity(url.len());
+            normalized_url.push_str(split.next().context(e)?);
+            normalized_url.push(':');
+            normalized_url.push_str(split.next().context(e)?);
+            normalized_url.push('/');
+            let tail = split.next().context(e)?;
+            normalized_url.push_str(tail);
+            let normalized_url = Url::parse(&normalized_url)?;
+            Ok(normalized_url)
+        }
+        Err(e) => Err(e.into()),
+    }
+}