When `DEFAULT_ACTIONS_URL=self`, action clone URLs (`uses: owner/repo@ref`) are
built from the Gitea **AppURL** (`gitea_default_actions_url`), but
`shouldCloneURLUseToken` compared the clone URL host only against the runner's
**registered address** (`GitHubInstance`).
When the runner registers with a different hostname than AppURL — same instance,
different DNS (e.g. `gitea.local` vs `gitea.my-nas.lan`, internal vs external) —
the strict `u1.Host == u2.Host` check returns false, so the task token is **not**
attached and the action clone goes out anonymously. Against an instance with
`REQUIRE_SIGNIN_VIEW=true` this fails with:
```
Unable to clone https://gitea.example/owner/action refs/heads/v1: authentication required
```
The current workaround is to make the runner's registered host exactly match
`AppURL`. This PR removes the need for that.
Refs: https://github.com/go-gitea/gitea/issues/27933
## Change
- `shouldCloneURLUseToken` now trusts the clone URL when its host matches **either**
the registered instance (`GitHubInstance`) **or** the self-hosted default-actions
instance (`DefaultActionInstance`). Embedded basic auth is still rejected, and the
empty-host cases are unchanged.
- A new `Config.DefaultActionInstanceIsSelfHosted` flag gates the second candidate.
It is set in the daemon layer (`run/runner.go`, `exec.go`), where `github.com` and
a configured `GithubMirror` are distinguishable, so the token is **never** attached
for off-instance hosts.Reviewed-on: https://gitea.com/gitea/runner/pulls/1056
Reviewed-by: Zettat123 <39446+zettat123@noreply.gitea.com>
Co-authored-by: bircni <bircni@icloud.com>
`NewGitCloneExecutor` holds a per-directory mutex while it `git checkout --force`s a remote action into the shared `<ActionCacheDir>/<UsesHash>`, but four read sites ran unlocked:
- `maybeCopyToActionDir`'s tar walk via `JobContainer.CopyDir`
- `prepareActionExecutor`'s `readAction` parse of `action.yml`
- `newReusableWorkflowExecutor`'s `model.NewWorkflowPlanner` after `cloneRemoteReusableWorkflow` released its lock
- `execAsDocker` when `ActionCache == nil`: `docker build` walks `contextDir` for the daemon-side build context
When two matrix jobs share a `uses:`, a read interleaved with a peer's checkout produces partial state — observed as `Cannot find module .../dist/index.js` and `setup-uv` failing on a half-written `action.yml`.
Exports `acquireCloneLock` as `AcquireCloneLock` and takes it at all four sites. `container.ImageExistsLocally` / `NewDockerBuildExecutor` and `model.NewWorkflowPlanner` are indirected through package-level vars so the docker-action build path and the reusable-workflow read site are testable without a real daemon, mirroring `ContainerNewContainer`. Three regression tests cover the higher-risk sites (`maybeCopyToActionDir`, `execAsDocker`, `newReusableWorkflowExecutor`); each fails if its `AcquireCloneLock` is removed.
Subsumed by https://gitea.com/gitea/runner/pulls/814 once that lands. Related: https://gitea.com/gitea/runner/pulls/930
---
This PR was written with the help of Claude Opus 4.7
---------
Co-authored-by: Nicolas <bircni@icloud.com>
Reviewed-on: https://gitea.com/gitea/runner/pulls/938
Reviewed-by: Nicolas <bircni@icloud.com>
Reviewed-by: Zettat123 <39446+zettat123@noreply.gitea.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-committed-by: silverwind <me@silverwind.io>
`cloneIfRequired` only ran the underlying clone executor when the target directory was missing, so a reusable workflow referenced by a moving ref (`uses: org/repo/.gitea/workflows/wf.yml@master`) was cached forever after the first invocation — edits to the source file never propagated.
Always invoke `git.NewGitCloneExecutor`. It handles existing repositories via fetch + pull + hard-reset, so branch and tag refs are brought up to date on each run, matching GitHub Actions semantics.
Drops the global `executorLock` too: `NewGitCloneExecutor` already takes a per-directory lock via `acquireCloneLock`, so the outer mutex only added unnecessary serialization across unrelated reusable-workflow clones — worse now that every invocation runs the full fetch.
Includes a regression test that drives the wrapper against a local bare repo, pushes a new commit on `master` between two invocations, and asserts the cached workflow file reflects the new tip.
Fixes: https://github.com/go-gitea/gitea/issues/37483
Fixes: https://gitea.com/gitea/runner/issues/726
Related: https://github.com/go-gitea/gitea/issues/30543
Would be subsumed by https://gitea.com/gitea/runner/pulls/814 ("WIP: Introduce new action cache") once that lands.
---
This PR was written with the help of Claude Opus 4.7
Reviewed-on: https://gitea.com/gitea/runner/pulls/930
Reviewed-by: Zettat123 <39446+zettat123@noreply.gitea.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-committed-by: silverwind <me@silverwind.io>
