169 lines
7.5 KiB
Fish
169 lines
7.5 KiB
Fish
# Copyright (C) 2026 Rootiest
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# SYNOPSIS
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# config-settings [-h | --help]
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#
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# DESCRIPTION
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# Opens an interactive full-screen TUI for managing fish config settings,
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# including the six opinionated component categories (C1–C6) and the master
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# disable variable, without having to remember variable names. Two scope
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# tabs allow independent per-scope configuration:
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#
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# Universal — persists across all sessions (set -U / set -Ue)
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# Session — active for the current shell only (set -g / set -eg)
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#
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# Values are changed directionally with the arrow keys (or vim-style h/l)
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# along an OFF ← DEFAULT → ON scale, and apply immediately — no confirm
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# step. Always available regardless of __fish_config_opinionated state.
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#
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# ARGUMENTS
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# -h, --help Print usage and exit
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#
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# RETURNS
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# 0 Exited normally (q or Escape pressed)
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# 1 Unknown flag passed
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#
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# EXAMPLE
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# config-settings
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function config-settings --description 'Interactive TUI for managing fish config settings'
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set -l c_head (set_color --bold cyan)
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set -l c_cmd (set_color --bold white)
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set -l c_flag (set_color yellow)
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set -l c_dim (set_color brblack)
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set -l c_err (set_color red)
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set -l c_reset (set_color normal)
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# ── Argument parsing ──────────────────────────────────
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for arg in $argv
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switch $arg
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case -h --help
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echo "$c_head""Usage:$c_reset $c_cmd""config-settings$c_reset $c_flag""[-h]$c_reset"
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echo
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echo " Interactive TUI for toggling opinionated component categories."
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echo " Changes apply immediately — no confirm step required."
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echo
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echo "$c_head""Navigation:$c_reset"
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echo " $c_flag↑ ↓$c_reset or $c_flag""k j$c_reset Move cursor up / down"
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echo " $c_flag← →$c_reset or $c_flag""h l$c_reset Set value: OFF ← DEFAULT → ON"
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echo " $c_flag""Tab$c_reset Switch scope (Universal ↔ Session)"
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echo " $c_flag""q$c_reset / $c_flag""Esc$c_reset Exit"
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echo
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echo "$c_head""Scopes:$c_reset"
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echo " $c_flag""Universal$c_reset Persistent across all sessions ($c_dim""set -U$c_reset)"
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echo " $c_flag""Session$c_reset Current session only ($c_dim""set -g$c_reset)"
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return 0
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case '*'
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echo "$c_err""Unknown option: $arg$c_reset" >&2
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echo "Run $c_cmd""config-settings --help$c_reset for usage." >&2
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return 1
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end
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end
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# ── Variable list (matches Panel Layout Reference) ────
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set -l vars \
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__fish_config_op_aliases \
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__fish_config_op_autoexec \
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__fish_config_op_overrides \
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__fish_config_op_integrations \
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__fish_config_op_logging \
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__fish_config_op_greeting \
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__fish_config_opinionated
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set -l cur_row 0 # 0–6
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set -l cur_scope universal # or "session"
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set -l panel_h 14 # total panel lines (all width tiers are 14 lines)
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set -l last_cols $COLUMNS # COLUMNS at the time of the last draw
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# ── Terminal setup ────────────────────────────────────
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printf '\e[?25l' # hide cursor
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trap 'printf "\e[?25h"; set -g __config_settings_exit 1' INT
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# ── Initial draw ──────────────────────────────────────
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__config_settings_draw $cur_row $cur_scope $vars
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# ── Event loop ────────────────────────────────────────
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# __config_settings_read_key reads a single keypress from /dev/tty in raw
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# mode and returns a normalized token (up/down/tab/space/escape/quit or a
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# literal char). It bypasses fish's `read`, whose line editor swallows Tab
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# and arrow keys and prints a `read> ` prompt — unusable for a TUI.
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while true
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# Check for Ctrl-C signal (trap sets this flag during redraw, when the
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# terminal is briefly back in cooked mode and SIGINT can fire).
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if set -q __config_settings_exit
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set -eg __config_settings_exit
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break
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end
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set -l key (__config_settings_read_key)
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or break # not a TTY — exit instead of spinning
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switch $key
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case up k
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set cur_row (math "max(0, $cur_row - 1)")
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case down j
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set cur_row (math "min(6, $cur_row + 1)")
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case tab # Tab — switch scope
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if test $cur_scope = universal
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set cur_scope session
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else
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set cur_scope universal
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end
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case right l # → / l — step toward ON (clamped, no wrap)
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set -l varname $vars[(math $cur_row + 1)]
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set -l cur_val (__config_settings_get_val $varname $cur_scope)
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# Order: OFF ← DEFAULT → ON
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set -l next_val on
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switch $cur_val
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case off
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set next_val DEFAULT
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case on
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set next_val on # already at the right end
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case '*' # DEFAULT or unrecognised
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set next_val on
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end
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__config_settings_apply $varname $cur_scope $next_val
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case left h # ← / h — step toward OFF (clamped, no wrap)
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set -l varname $vars[(math $cur_row + 1)]
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set -l cur_val (__config_settings_get_val $varname $cur_scope)
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# Order: OFF ← DEFAULT → ON
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set -l next_val off
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switch $cur_val
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case on
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set next_val DEFAULT
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case off
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set next_val off # already at the left end
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case '*' # DEFAULT or unrecognised
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set next_val off
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end
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__config_settings_apply $varname $cur_scope $next_val
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case q Q quit escape
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break
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end
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# Skip redraw entirely when the key reader timed out with no resize
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if test -z "$key" -a "$COLUMNS" = "$last_cols"
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continue
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end
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# Wrap-aware erase: a panel drawn on a wider terminal has longer lines
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# (due to center-padding) that wrap into extra physical rows when the
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# terminal narrows. 78 = widest box (IW=76+2); the formula gives the
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# worst-case old line width for any tier drawn at last_cols.
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set -l prev_max_lw (math --scale=0 "($last_cols + 78) / 2")
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set -l erase_h (math --scale=0 "$panel_h * max(1, ceil($prev_max_lw / $COLUMNS))")
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printf '\e[%dA\e[J' $erase_h
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set last_cols $COLUMNS
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__config_settings_draw $cur_row $cur_scope $vars
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end
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# ── Cleanup ───────────────────────────────────────────
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trap - INT # remove the signal handler
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set -l prev_max_lw (math --scale=0 "($last_cols + 78) / 2")
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set -l erase_h (math --scale=0 "$panel_h * max(1, ceil($prev_max_lw / $COLUMNS))")
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printf '\e[%dA\e[J' $erase_h # erase the panel (wrap-aware)
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printf '\e[?25h' # restore cursor
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end
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