Description
Adoption feature. $EDITOR is one slot for everything, so a coder keeps their code editor there — but the prose-oriented editor calls (git commit/rebase/merge/tag messages, jj describe, AND gum/huh 'open in editor' prompts, crontab -e, etc.) should be able to reach glint without taking over $EDITOR for code. There is no OS-level text-vs-code split; it must be done per-tool or via a dispatcher.
Two complementary approaches, ideally both offered by a glint setup step (glint -c or a command), idempotent + reversible, documented in the README:
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Per-tool config (precise, no extension guessing):
- git: 'git config --global core.editor glint'
- jj: 'jj config set --user ui.editor glint' These leave $EDITOR alone.
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$EDITOR dispatcher wrapper (general — covers ANY tool that calls $EDITOR, including gum/huh Text fields, crontab -e): A small script set as $EDITOR that routes by the temp file's extension/name — prose (*.md, *.markdown, *.txt, COMMIT_EDITMSG, generic temp) -> glint; everything else -> the user's code editor (nvim/etc.). glint ships/generates the script and points $EDITOR at it. Caveat: extension-based, so tools using an unhinted generic temp name hit the fallback; huh apps can set EditorExtension('.md') but the end user doesn't control that.
One-shot editor mode already works: a tool calls 'glint ', user edits, Ctrl+S saves, Ctrl+Q exits, the tool reads the saved file. Verify glint opens/edits/saves cleanly on non-.md tmpfiles (git COMMIT_EDITMSG); consider a save-on-quit safety so an unsaved message isn't silently empty. Positioning: glint is the terminal WRITING app owning prose edits, not the universal default editor.
Acceptance Criteria
- #1 A glint command / config step sets git core.editor (and jj ui.editor) to glint, leaving $EDITOR untouched
- #2 It is idempotent and offers an undo/unset
- #3 glint opens, edits, and saves cleanly when invoked one-shot on a non-.md tmpfile (e.g. git COMMIT_EDITMSG)
- #4 README documents the manual git/jj one-liners
- #5 glint setup can install a $EDITOR dispatcher wrapper that routes prose temp files to glint and code to the user's editor (covers gum/huh, crontab, git)