feat(cargo): support fetching versions for git crates hosted on github (#1459)

2 files changed, 34 insertions, 0 deletions

diff --git a/lua/mason-core/installer/registry/providers/cargo.lua b/lua/mason-core/installer/registry/providers/cargo.lua
index 312a2938..af43db86 100644
--- a/lua/mason-core/installer/registry/providers/cargo.lua
+++ b/lua/mason-core/installer/registry/providers/cargo.lua
@@ -58,6 +58,20 @@ end
 ---@async
 ---@param purl Purl
 function M.get_versions(purl)
+    ---@type string?
+    local repository_url = _.path({ "qualifiers", "repository_url" }, purl)
+    if repository_url then
+        ---@type Result?
+        local git_tags = _.cond {
+            {
+                _.matches "github.com/(.+)",
+                _.compose(providers.github.get_all_tags, _.head, _.match "github.com/(.+)"),
+            },
+        }(repository_url)
+        if git_tags then
+            return git_tags
+        end
+    end
     return providers.crates.get_all_versions(purl.name)
 end
 
diff --git a/tests/mason-core/installer/registry/providers/cargo_spec.lua b/tests/mason-core/installer/registry/providers/cargo_spec.lua
index 674164c2..d3468909 100644
--- a/tests/mason-core/installer/registry/providers/cargo_spec.lua
+++ b/tests/mason-core/installer/registry/providers/cargo_spec.lua
@@ -2,6 +2,7 @@ local Purl = require "mason-core.purl"
 local Result = require "mason-core.result"
 local cargo = require "mason-core.installer.registry.providers.cargo"
 local installer = require "mason-core.installer"
+local providers = require "mason-core.providers"
 local stub = require "luassert.stub"
 
 ---@param overrides Purl
@@ -117,3 +118,22 @@ describe("cargo provider :: installing", function()
         })
     end)
 end)
+
+describe("cargo provider :: versions", function()
+    it("should recognize github cargo source", function()
+        stub(providers.github, "get_all_tags", function()
+            return Result.success { "1.0.0", "2.0.0", "3.0.0" }
+        end)
+
+        local result = cargo.get_versions(purl {
+            qualifiers = {
+                repository_url = "https://github.com/rust-lang/rust-analyzer",
+            },
+        })
+
+        assert.is_true(result:is_success())
+        assert.same({ "1.0.0", "2.0.0", "3.0.0" }, result:get_or_throw())
+        assert.spy(providers.github.get_all_tags).was_called(1)
+        assert.spy(providers.github.get_all_tags).was_called_with "rust-lang/rust-analyzer"
+    end)
+end)