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fish-config/functions/bkg.fish
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rootiest 8dcbc62359 fix: guard and document the external tools PR #168 flagged as unguarded
PR #168's Notes section named several functions with a real
external-tool dependency that no `type -q`/`command -q`/`command -v`/
`which` guard covers anywhere in the tree, deliberately left out of
DEPENDENCIES to avoid breaking test_dependencies_resolve. Adds the
guard each was missing, then declares the dependency now that it
resolves:

- bkg, detach: nohup
- gitui: gitui (self-shadow; type -q -f to skip the function itself)
- play-media: mpv, vlc -- already guarded via `type -q -f $p` in a
  loop, just never recognized as one (see next point)
- steam-dl: systemd-inhibit, steam
- wake-lock: systemd-inhibit
- split, spwin, tab: wezterm, konsole (kitty already declared)

docs/verify-manual.py's guard-detection regex only matched `type -q
<name>` immediately, so `type -q -f $p` (the `-f` flag excludes
functions from the match, needed wherever a wrapper shadows a binary
of its own name) was invisible to it -- both as a direct guard and
through the loop-variable indirection. Broadened both patterns to
skip over any flags between `-q` and the name/variable.

split/spwin/tab dispatch on $TERM/$TERM_PROGRAM/$KONSOLE_VERSION to
pick which terminal-specific binary to call, per this repo's C4
convention -- but those env vars only prove the terminal type, not
that its CLI binary is on $PATH: they propagate over ssh, so sshing
out from Kitty/WezTerm inherits the var on a remote host that never
installed the binary. Same latent gap in clone/clonet, whose
clone-in-kitty is a function Kitty's own shell integration injects,
not present on a remote shell that only inherited $TERM. All five now
check the actual thing they are about to call, not just the env var
that selects it.

Also guards and documents three more real, previously-undeclared
dependencies found by the same audit, unrelated to PR #168's named
list but the identical pattern: fast-cli (fast), lock (loginctl),
ports (lsof), screensleep (busctl).

docs/fish-config.md regenerated to match.
2026-09-22 22:40:33 -04:00

48 lines
1.3 KiB
Fish

# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later
# CATEGORY
# 08-terminal-management
#
# DEPENDENCIES
# nohup
#
# SYNOPSIS
# bkg <command> [args...]
#
# DESCRIPTION
# Launches a command in the background, fully detached from the terminal
# using nohup. All stdout and stderr output is discarded. Simpler than
# detach; no --version flag.
#
# ARGUMENTS
# command The command to run detached
# args... Additional arguments for the command
#
# EXIT STATUS
# 0 Command launched successfully
# 1 No command provided
#
# EXAMPLE
# bkg firefox
function bkg --description 'Execute bkg'
__fish_help_header (status current-function) $argv; and return 0
# Check if a command was provided as an argument.
if test -z "$argv[1]"
__fish_palette
echo "$c_head""Usage:$c_reset $c_cmd""bkg$c_reset $c_arg""<command> [arguments...]$c_reset"
return 1
end
if not type -q nohup
echo (set_color red)"Error: nohup is not installed."(set_color normal) >&2
return 1
end
# Run the command using nohup to make it immune to hangups (like closing the terminal).
# Redirect both stdout and stderr to /dev/null to discard all output.
# The final ampersand (&) sends the entire process to the background.
nohup $argv &>/dev/null &
end