63 lines
3.0 KiB
Markdown
63 lines
3.0 KiB
Markdown
---
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title: C3 — Key and Environment Overrides
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---
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These change fundamental shell behavior: how keys work, which pager opens,
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and what the prompt looks like. Disabling `__fish_config_op_overrides` removes
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all of them.
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Override What it replaces or sets
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───────────────────────────────────────────────────────────────────────────
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Vi mode fish_vi_key_bindings replaces default Emacs mode
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PATH setup Prepends custom bin directories to the PATH
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exit → smart_exit exit wrapper that captures scrollback before closing
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PAGER=ov ov used by git, man, and all $PAGER-aware tools
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EDITOR=nvim nvim fallback to vi for git commit, etc.
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GPG_TTY Sets GPG_TTY to current terminal tty
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MANPAGER=bat pipeline man pages rendered with syntax highlighting
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CDPATH=. ~/projects ~ bare dir names resolve against ~/projects and ~
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Bang-bang system ! and $ keys expand history; !^, !*, !-N, !?str?,
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^old^new abbreviations; six expand_bang_* helpers
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Autopair ( [ { " ' auto-close to (), [], {}, "", ''
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Puffer key intercepts . ! $ * keys intercepted for smart expansion
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Starship prompt fish_prompt replaced by Starship + OSC 133 markers
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Catppuccin colors 30+ fish_color_* variables set to Mocha palette
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FZF_DEFAULT_OPTS FZF themed to Catppuccin Mocha colors
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Right prompt fish_right_prompt: exit code (on failure) + dim timestamp; always rendered; Docker context added when starship+C3 active
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DO_NOT_TRACK=1 Universal telemetry opt-out for tools and AI agents
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DISABLE_TELEMETRY=1 Telemetry opt-out for telemetry-aware CLIs
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The bang-bang system spans `key_bindings.fish`, `abbr.fish`, `puffer.fish`, and
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six `expand_bang_*.fish` functions. All are gated together — disabling C3
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removes the entire bang-expansion system at once.
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When C3 is disabled, `exit` falls back to `builtin exit` with no scrollback
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capture, no Kitty IPC, and no file I/O on exit. The scrollback capture block
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is independently controlled by C5 (see below).
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## Sub-categories
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`__fish_config_op_overrides` sub-divides into four sub-categories, each
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with its own `__fish_config_op_overrides_<slug>` toggle:
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## key-bindings
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Vi mode, autopair, puffer key intercepts, bang-bang history expansion,
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and `smart_exit`'s plain-exit path.
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## environment
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`$PATH`, `$PAGER`/`$EDITOR`/`$GPG_TTY`, and `$CDPATH`.
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## prompt
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Starship, the right prompt, Catppuccin syntax/prompt colors, and FZF
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theming (`$FZF_DEFAULT_OPTS`) -- all driven by the same guard as a single
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unit, not independently toggleable from each other.
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## privacy
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`$DO_NOT_TRACK` and `$DISABLE_TELEMETRY` environment variables for
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telemetry opt-out across CLI tools, runtimes, and AI agents.
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