create_project_from_template returned files_substituted:null and produced a
non-building scaffold. Three root causes, all fixed:
1. Empty branch: /generate omits default_branch, so every SubstituteFile read
hit an empty ref and 404'd → nothing substituted. Resolve the branch
explicitly (re-fetch the repo; fall back to "main"). The old unit test hid
this by mocking default_branch:"main".
2. Incomplete + rename-incapable: substitution ran over a fixed 6-file list
that missed cmd/__PROJECT_NAME__/main.go and could not rename the
cmd/__PROJECT_NAME__/ directory. Replace with a recursive tree walk:
content-substitute every blob, and for any path carrying a placeholder,
rename it (POST-create new path + delete old).
3. Stale module host: __MODULE_PATH__ used gitea.d-ma.be (the pre-rename host,
which breaks `go mod download` downstream). Use git.d-ma.be.
Also: fail loud — if nothing was substituted, populate partial_failure instead
of returning silent success (the null that started this).
Tests rewritten to drive the tree-walk flow and assert: cmd/ rename (new path
POST + old path delete), git.d-ma.be module substitution, empty-generate-branch
fallback, and the loud-on-nothing path.
Closes#42.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mathiasandClaude Opus 4.8
e3cdd23260