support for radicle urls

etc/check-package-size.sh

@@ -19,12 +19,12 @@ indent cargo diet -n --package-size-limit 25KB
 (enter git-hash && indent cargo diet -n --package-size-limit 5KB)
 (enter git-features && indent cargo diet -n --package-size-limit 15KB)
 (enter git-ref && indent cargo diet -n --package-size-limit 4KB)
-(enter git-url && indent cargo diet -n --package-size-limit 6KB)
+(enter git-url && indent cargo diet -n --package-size-limit 7KB)
 (enter git-object && indent cargo diet -n --package-size-limit 20KB)
 (enter git-commitgraph && indent cargo diet -n --package-size-limit 15KB)
 (enter git-odb && indent cargo diet -n --package-size-limit 65KB)
 (enter git-protocol && indent cargo diet -n --package-size-limit 20KB)
 (enter git-packetline && indent cargo diet -n --package-size-limit 10KB)
 (enter git-repository && indent cargo diet -n --package-size-limit 10KB)
 (enter git-transport && indent cargo diet -n --package-size-limit 20KB)
-(enter gitoxide-core && indent cargo diet -n --package-size-limit 10KB)
+(enter gitoxide-core && indent cargo diet -n --package-size-limit 15KB)

git-transport/src/client/connect.rs

@@ -23,6 +23,9 @@ quick_error! {
         UnsupportedUrlTokens(url: bstr::BString, scheme: git_url::Scheme) {
             display("The url '{}' contains information that would not be used by the '{}' protocol", url, scheme)
         }
+        UnsupportedScheme(scheme: git_url::Scheme) {
+            display("The '{}' protocol is currently unsupported", scheme)
+        }
         #[cfg(not(feature = "http-client-curl"))]
         CompiledWithoutHttp(scheme: git_url::Scheme) {
             display("'{}' is not compiled in. Compile with the 'http-client-curl' cargo feature", scheme)
@@ -82,6 +85,7 @@ pub fn connect(url: &[u8], desired_version: crate::Protocol) -> Result<Box<dyn T
     let urlb = url;
     let url = git_url::parse(urlb)?;
     Ok(match url.scheme {
+        git_url::Scheme::Radicle => return Err(Error::UnsupportedScheme(url.scheme)),
         git_url::Scheme::File => {
             if url.user.is_some() || url.host.is_some() || url.port.is_some() {
                 return Err(Error::UnsupportedUrlTokens(urlb.into(), url.scheme));

git-url/src/lib.rs

@@ -27,6 +27,7 @@ pub enum Scheme {
     Ssh,
     Http,
     Https,
+    Radicle,
 }
 
 impl fmt::Display for Scheme {
@@ -38,6 +39,7 @@ impl fmt::Display for Scheme {
             Ssh => "ssh",
             Http => "http",
             Https => "https",
+            Radicle => "rad",
         })
     }
 }

git-url/src/parse.rs

@@ -35,6 +35,7 @@ fn str_to_protocol(s: &str) -> Result<Scheme, Error> {
         "git" => Scheme::Git,
         "http" => Scheme::Http,
         "https" => Scheme::Https,
+        "rad" => Scheme::Radicle,
         _ => return Err(Error::UnsupportedProtocol(s.into())),
     })
 }
@@ -122,7 +123,7 @@ pub fn parse(bytes: &[u8]) -> Result<crate::Url, Error> {
         url = url::Url::parse(&format!("ssh://{}", sanitize_for_protocol("ssh", url_str)))
             .map_err(|err| Error::Url(err.to_string()))?;
     }
-    if url.path().is_empty() {
+    if url.scheme() != "rad" && url.path().is_empty() {
         return Err(Error::EmptyPath);
     }
     if url.cannot_be_a_base() {

git-url/tests/parse/mod.rs

@@ -33,6 +33,17 @@ fn url(
 mod file;
 mod invalid;
 mod ssh;
+
+mod radicle {
+    use crate::parse::{assert_url_roundtrip, url};
+    use git_url::Scheme;
+
+    #[test]
+    fn basic() -> crate::Result {
+        assert_url_roundtrip("rad://hynkuwzskprmswzeo4qdtku7grdrs4ffj3g9tjdxomgmjzhtzpqf81@hwd1yregyf1dudqwkx85x5ps3qsrqw3ihxpx3ieopq6ukuuq597p6m8161c.git", url(Scheme::Radicle, "hynkuwzskprmswzeo4qdtku7grdrs4ffj3g9tjdxomgmjzhtzpqf81", "hwd1yregyf1dudqwkx85x5ps3qsrqw3ihxpx3ieopq6ukuuq597p6m8161c.git", None, b""))
+    }
+}
+
 mod http {
     use crate::parse::{assert_url_roundtrip, url};
     use git_url::Scheme;