feat(setup): show git status in the setup window and explain the Git-URL failure - #1383
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Scriptwonder merged 2 commits intoSep 5, 2026
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…URL failure
Adding the package from a Git URL makes the Package Manager shell out to git, and
two failures look identical to the user: git missing from PATH, or git refusing a
folder owned by another account ('fatal: not in a git directory'). Issue CoplayDev#1216 and
its duplicates are all one of those two, and the setup window gave no signal either
way because it only checks Python and uv.
Detect git as an OPTIONAL dependency so a missing git can never block setup, show
it as its own row, and put the safe.directory remedy in the row details and in the
troubleshooting guide. Missing optional dependencies now render in the neutral
colour rather than the red reserved for required ones.
Closes CoplayDev#1216
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Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughGit is now detected as an optional dependency for Unity Package Manager Git-URL installations. The setup window displays Git status without blocking readiness. Tests and documentation cover detection, errors, and troubleshooting. ChangesGit dependency support
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to This change adds optional Git detection and Git URL troubleshooting guidance without making Git a setup requirement. No concrete merge-blocking risk remains in the supplied change context. Sequence Diagram(s)sequenceDiagram
participant PlatformDetectorBase
participant DependencyManager
participant MCPSetupWindow
PlatformDetectorBase->>PlatformDetectorBase: Run git --version
PlatformDetectorBase-->>DependencyManager: Return optional Git status
DependencyManager-->>MCPSetupWindow: Supply dependency results
MCPSetupWindow->>MCPSetupWindow: Render Git status without blocking readiness
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 23.53% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 17 functions across 5 files. (1 skipped: 1 unsupported.)
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🟡 Changes recommended
Optional-missing Git still renders a red “invalid” status indicator and the Git remediation string needs a small consistency/clarity fix to match the documented guidance.
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Pull request overview
Adds Git detection and user-facing guidance to the Unity setup flow so Git-URL install failures (“Error when executing git command” / “not in a git directory”) are actionable, while keeping Git an optional dependency that never blocks setup.
Changes:
- Add optional
DetectGit()to platform dependency detection and include it inDependencyManager.CheckAllDependencies(). - Extend
MCPSetupWindowUI to show a Git (optional) row and adjust optional-missing rendering behavior. - Add troubleshooting documentation for the two common Git-URL failure modes and link it from the install guide; add EditMode tests for Git version parsing and optional-dependency behavior.
File summaries
| File | Description |
|---|---|
website/docs/guides/troubleshooting.md |
Documents Git-URL install failure causes and remediation (safe.directory, missing git). |
website/docs/getting-started/install.md |
Links Git-URL install flow to the new troubleshooting section. |
TestProjects/UnityMCPTests/Assets/Tests/EditMode/GitDetectionTests.cs |
Adds EditMode tests for Git version parsing and optional-dependency readiness behavior. |
TestProjects/UnityMCPTests/Assets/Tests/EditMode/GitDetectionTests.cs.meta |
Adds Unity meta for the new test file. |
MCPForUnity/Editor/Windows/MCPSetupWindow.uxml |
Adds the “Git (optional)” dependency row to the setup window layout. |
MCPForUnity/Editor/Windows/MCPSetupWindow.cs |
Wires Git status into the setup window update flow and tweaks optional-missing rendering. |
MCPForUnity/Editor/Dependencies/PlatformDetectors/PlatformDetectorBase.cs |
Implements cross-platform DetectGit() and adds Git version parsing helper. |
MCPForUnity/Editor/Dependencies/PlatformDetectors/IPlatformDetector.cs |
Extends the platform detector interface with DetectGit(). |
MCPForUnity/Editor/Dependencies/DependencyManager.cs |
Includes Git in the dependency check result as an optional dependency. |
Review details
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- TestProjects/UnityMCPTests/Assets/Tests/EditMode/GitDetectionTests.cs.meta: Generated file
- Files reviewed: 8/9 changed files
- Comments generated: 2
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| indicator.RemoveFromClassList("valid"); | ||
| indicator.AddToClassList("invalid"); | ||
| versionLabel.text = "Not Found"; |
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| status.Details = "If the Package Manager still reports 'not in a git directory', git is refusing a folder " | ||
| + "owned by another user: run git config --global --add safe.directory <project folder>"; |
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Actionable comments posted: 2
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Inline comments:
In `@MCPForUnity/Editor/Windows/MCPSetupWindow.cs`:
- Around line 383-388: Update UpdateDependencyStatus so unavailable optional
dependencies, including git-indicator, do not receive the invalid class; apply
the existing neutral status state when dep.IsRequired is false, while preserving
invalid styling for unavailable required dependencies.
In `@website/docs/guides/troubleshooting.md`:
- Around line 176-179: Update the Git safe.directory guidance to use the exact
Unity project path, or explicitly document the /* suffix when trusting
repositories beneath a directory. Remove the incorrect claim that trusting a
parent folder automatically covers all projects inside it.
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📒 Files selected for processing (9)
MCPForUnity/Editor/Dependencies/DependencyManager.csMCPForUnity/Editor/Dependencies/PlatformDetectors/IPlatformDetector.csMCPForUnity/Editor/Dependencies/PlatformDetectors/PlatformDetectorBase.csMCPForUnity/Editor/Windows/MCPSetupWindow.csMCPForUnity/Editor/Windows/MCPSetupWindow.uxmlTestProjects/UnityMCPTests/Assets/Tests/EditMode/GitDetectionTests.csTestProjects/UnityMCPTests/Assets/Tests/EditMode/GitDetectionTests.cs.metawebsite/docs/getting-started/install.mdwebsite/docs/guides/troubleshooting.md
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…ory advice Addresses the review on CoplayDev#1383. The missing-optional branch still added the `invalid` class to the indicator, and `.status-indicator-small.invalid` is red in Components/Common.uss, which MCPSetupWindow.uxml loads. Only the details text was made conditional, so a machine without git showed a red dot next to grey "only needed for Git-URL installs" text - the opposite of what the row is for. The branch now drops both state classes, leaving the plain grey of the base class. Split into three cases rather than one branch with two ternaries, since that pairing is what let the indicator and the text disagree. UpdateDependencyStatus becomes internal static - it touched no instance state - so the three new tests can drive it directly through the InternalsVisibleTo the test assembly already has. The safe.directory line was wrong in both places it appeared. Git's own docs: "Giving a directory with /* appended to it will allow access to all repositories under the named directory." A plain parent path trusts only that exact repository, so "Trusting the parent folder covers every project inside it" was untrue. The docs now give both forms and say which is which; the reporter on CoplayDev#1216 used the parent-folder one, so it stays rather than being dropped. The in-editor hint also loses a double space and gains quotes around the path, which Windows project paths need.
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#1383 made MCPSetupWindow.UpdateDependencyStatus internal static so the new GitDetectionTests could drive it directly. The characterization test still looked it up with BindingFlags.NonPublic | Instance, which no longer matches, so GetMethod returned null and the fixture failed on the Assert.IsNotNull guard rather than on the behaviour it exists to describe. beta has been red on it since 9d93c42. Adding Static alongside Instance keeps the lookup working whichever way the method is declared. The test is a characterization test - it records that the window drives "valid"/"invalid" class lists, which is still exactly what the method does. Not caught before merging because #1383 came from a fork, where the Unity test legs report Skipped, and the pre-merge run was filtered to GitDetectionTests. Measured on 2021.3.45f2: full EditMode 1243 total, 1163 passed, 0 failed, 80 skipped; WindowsCharacterizationTests 31/31.
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Description
Installing from a Git URL makes the Package Manager shell out to
git, and when that fails the user getsError when executing git commandwith nothing to act on. #1216 and the reports on it are two different failures wearing the same message:fatal: not in a git directory. The reporter on [Bug]: when i enter the url it says [Package Manager Window] Error adding/removing packages: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#beta. #1216 solved it withsafe.directoryand posted the fix in the thread.The setup window only checks Python and uv, so it gave no signal either way.
This adds git to the existing dependency check as an optional dependency, so a missing git can never block setup, and puts the
safe.directoryremedy where someone hitting the error will actually see it.Type of Change
Changes Made
IPlatformDetector/PlatformDetectorBaseDetectGit()alongside the existingDetectPython()/DetectUv(), implemented once in the base since it isgit --versionon every platform. It reuses the sameTryFindInPatheach detector already provides, so PATH augmentation keeps working.TryParseGitVersionhandles both shapes git actually prints:git version 2.45.1.windows.1andgit version 2.39.5 (Apple Git-154).DependencyManagerCheckAllDependencies(). It isisRequired: false, soIsSystemReadyand the Next button are unaffected.MCPSetupWindowGit (optional)row next to Python and uv.safe.directoryremedy, since that failure happens with git installed and is the one people cannot guess.Docs
Compatibility / Package Source
Verification
tools/compile-check.shon 2021.3.45f2 and 6000.3.9f1:compile check passed for: win osx linuxGitDetectionTests, Unity 2021.3.45f2: 10 passed, 0 failed. Covers both version-string shapes, the rejects, that the git row is always present and optional, and that a missing git leavesIsSystemReadytrue.Closes #1216
Summary by CodeRabbit
New Features
Documentation
Tests