feat: default to TUI mode, add --cat for non-interactive output#7
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Reverse the previous default: passing a file now opens the interactive TUI, and the cat-style renderer is reached via the new `--cat` flag. The old `--tui` flag still works as an explicit opt-in. Stdout is checked for TTY-ness so `termdown FILE | less` and stdin pipelines keep producing plain output without needing `--cat`. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Remove the unreachable `"TUI mode"` arm in the missing-file error; the implicit-TUI path already requires a real file, so only `--tui` can land in that match arm. - Add an Unreleased section to CHANGELOG.md flagging the default-mode reversal as a BREAKING change and documenting the new `--cat` flag. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
With TUI as the default, `--tui` was either a no-op (when stdout is a terminal) or a footgun (forcing ratatui through a non-TTY stdout, where it can't render). Drop it. `--cat` remains the only mode switch. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Document the bump exception to the no-direct-commits rule: version bumps are the only commits that go straight to master, kept as standalone commits (not bundled into feature PRs). Pushing the vX.Y.Z tag both stamps the version and triggers release.yml. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
termdown FILE.mdnow opens the interactive TUI instead of printing cat-style output.--tuiflag. With TUI as the default it was either a no-op or a footgun (forcing ratatui through a non-TTY stdout).--catto force non-interactive cat-style output.termdown FILE.md | lessand stdin pipelines automatically fall back to cat-style output — no flag needed.[Unreleased]section.Test plan
make check(fmt-check + clippy + test) passes — 73 unit + 9 CLI + 5 snapshot tests.cat_flag_forces_cat_output_with_file,file_arg_with_piped_stdout_falls_back_to_cat.termdown README.mdin a Kitty/Ghostty/WezTerm/iTerm2 terminal launches the TUI.termdown --cat README.mdprints cat-style output.termdown README.md | lessshows cat-style output (no TUI takeover).🤖 Generated with Claude Code