fix(site): keep TemplateVersionEditor file tree in sync#25068
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The editor kept its own local copy of the file tree, while the page kept the initial copy loaded from the tar. The page resolved the active path against its stale tree, so creating a file fell back to the entrypoint and renaming threw 'File is not a text file' from getFileText. Lift the file tree state up to TemplateVersionEditorPage so there is a single source of truth. Add regression tests for create and rename. Generated by Coder Agents.
DanielleMaywood
approved these changes
Jun 26, 2026
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The TemplateVersionEditor kept its own local copy of the file tree, while the page kept the initial copy loaded from the tar. Active path resolution ran against the page's stale tree, so creating a file fell back to the entrypoint and renaming threw
File is not a text filefromgetFileText.Lift file tree state up to
TemplateVersionEditorPageso there is a single source of truth, and add regression tests for the create and rename flows.Implementation plan
Symptoms
getFileTextinfiletree.tsthrows "File is not a text file".Root cause
fileTreelives in two places:TemplateVersionEditorPage(initial copy from tar) andTemplateVersionEditor(local mutable copy viauseState(defaultFileTree)). The parent never sees the child's edits, sogetActivePathvalidates against the parent's stale tree:newfile.tf: child has it, parent does not.existsFile("newfile.tf", parentTree)is false, so the active path falls back tofindEntrypointFile(parentTree)which ismain.tf. The editor opensmain.tfinstead.main.tf→app.tf: child hasapp.tfonly. The fallback returnsmain.tffrom the parent, and the editor callsgetFileText("main.tf", childTreeWithoutMainTf)which throws.Fix
Lift the file tree state up to the page.
useFileTreeexposes asetFileTree, andTemplateVersionEditortakesfileTreeandonFileTreeChangeprops instead ofdefaultFileTree.Generated by Coder Agents.