Feat: add simpler interface to install from Github repo with rv add owner/repo

.gitignore

@@ -13,4 +13,6 @@ from*/
 logs/
 dist/
 global-cache/
-drift-reviews/
+drift-reviews/
+
+temp-pkg

src/cli/commands/init.rs

@@ -17,6 +17,8 @@ const INITIAL_CONFIG: &str = r#"[project]
 name = "%project_name%"
 r_version = "%r_version%"
 %use_devel%
+# Optional: base URL for `rv add owner/repo` shorthand (defaults to https://github.com).
+# git_shorthand_base_url = "https://github.example.com"
 # A list of repositories to fetch packages from. Order matters: we will try to get a package from each repository in order.
 # The alias is only used in this file if you want to specifically require a dependency to come from a certain repository.
 # Example: { alias = "PPM", url = "https://packagemanager.posit.co/cran/latest" },

src/config.rs

@@ -5,6 +5,7 @@ use std::str::FromStr;
 
 use crate::SystemInfo;
 use crate::consts::LOCKFILE_NAME;
+use crate::dependency_edit::DEFAULT_GIT_SHORTHAND_BASE_URL;
 use crate::git::url::GitUrl;
 use crate::lockfile::Source;
 use crate::package::{Version, deserialize_version, serialize_version};
@@ -351,6 +352,10 @@ pub(crate) struct Project {
     /// Package-specific configure.args with system targeting
     #[serde(default)]
     pub configure_args: HashMap<String, Vec<ConfigureArgsRule>>,
+    /// Base URL used by `rv add <owner>/<repo>` shorthand.
+    /// Defaults to https://github.com when not specified.
+    #[serde(default)]
+    git_shorthand_base_url: Option<String>,
 }
 
 // That's the way to do it with serde :/
@@ -428,13 +433,33 @@ impl Config {
                 } => match (tag.is_some(), branch.is_some(), commit.is_some()) {
                     (true, false, false) | (false, true, false) | (false, false, true) => (),
                     _ => {
-                        errors.push(format!("A git dependency `{git}` requires ons and only one of tag/branch/commit set. "));
+                        errors.push(format!(
+                            "A git dependency `{git}` requires one and only one of tag/branch/commit set."
+                        ));
                     }
                 },
                 _ => (),
             }
         }
 
+        if let Some(base_url) = self.project.git_shorthand_base_url.as_deref() {
+            let base_url = base_url.trim();
+            if base_url.is_empty() {
+                errors.push("`project.git_shorthand_base_url` cannot be empty.".to_string());
+            } else {
+                let probe_url = if base_url.ends_with(':') {
+                    format!("{base_url}owner/repo")
+                } else {
+                    format!("{}/owner/repo", base_url.trim_end_matches('/'))
+                };
+                if let Err(e) = GitUrl::try_from(probe_url.as_str()) {
+                    errors.push(format!(
+                        "Invalid `project.git_shorthand_base_url` `{base_url}`: {e}"
+                    ));
+                }
+            }
+        }
+
         if !errors.is_empty() {
             return Err(ConfigLoadError {
                 path: Path::new(".").into(),
@@ -509,6 +534,13 @@ impl Config {
     pub fn configure_args(&self) -> &HashMap<String, Vec<ConfigureArgsRule>> {
         &self.project.configure_args
     }
+
+    pub fn git_shorthand_base_url(&self) -> &str {
+        self.project
+            .git_shorthand_base_url
+            .as_deref()
+            .unwrap_or(DEFAULT_GIT_SHORTHAND_BASE_URL)
+    }
 }
 
 impl FromStr for Config {
@@ -582,4 +614,51 @@ repositories = []
             deserialized.r_version().original
         );
     }
+
+    #[test]
+    fn git_shorthand_base_url_defaults_and_overrides() {
+        let default_toml = r#"
+[project]
+name = "test"
+r_version = "4.4"
+repositories = []
+"#;
+        let default_config = Config::from_str(default_toml).unwrap();
+        assert_eq!(
+            default_config.git_shorthand_base_url(),
+            crate::dependency_edit::DEFAULT_GIT_SHORTHAND_BASE_URL
+        );
+
+        let custom_toml = r#"
+[project]
+name = "test"
+r_version = "4.4"
+repositories = []
+git_shorthand_base_url = "https://git.example.com/scm"
+"#;
+        let custom_config = Config::from_str(custom_toml).unwrap();
+        assert_eq!(
+            custom_config.git_shorthand_base_url(),
+            "https://git.example.com/scm"
+        );
+    }
+
+    #[test]
+    fn invalid_git_shorthand_base_url_errors() {
+        let toml_str = r#"
+[project]
+name = "test"
+r_version = "4.4"
+repositories = []
+git_shorthand_base_url = "git.example.com"
+"#;
+        let err = Config::from_str(toml_str).unwrap_err();
+        assert!(
+            err.source
+                .to_string()
+                .contains("Invalid `project.git_shorthand_base_url`"),
+            "unexpected error: {}",
+            err.source
+        );
+    }
 }