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fish-config/functions/du.fish
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Claude fd64335207 docs: add DEPENDENCIES sections to function doc headers
Documents what each function needs for full functionality -- other
repo functions it calls, and external CLI tools it uses or falls
back gracefully without (e.g. rm/trash, ls/eza+lsd) -- matching the
existing CLASSIFICATION convention's placement and the ~20 functions
that already carried this label.

Also broadens verify-manual.py's dependency-resolution check to
recognize this repo's other existence-check idioms (command -q,
command -v, which -- not just type -q) and dng2avif's dynamic
type -q $cmd loop, since several genuine dependencies (eza, lsd,
fastfetch, fd, ps, ...) are only ever guarded that way.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HdzcdfzUSzskSsCS1U4j5X
2026-09-22 22:21:02 -04:00

99 lines
2.4 KiB
Fish

# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later
# CATEGORY
# 01-file-and-directory
#
# COMPONENT
# aliases/filesystem
#
# DEPENDENCIES
# duf, dust, dua
#
# CLASSIFICATION
# bypasses-shadow(du)
#
# SYNOPSIS
# du [--disk|--dir|--dua] [args...]
#
# DESCRIPTION
# Smart disk-usage dispatcher. Without flags, routes to the most appropriate
# tool by context; explicit flags force one. Falls back to system du when the
# preferred tool is not installed.
#
# ARGUMENTS
# --disk Force duf (disk-level free/used overview)
# --dir Force dust (per-directory tree breakdown)
# --dua Force dua (fast interactive space analyzer)
# args... Files/directories or flags forwarded to the selected tool
#
# EXAMPLE
# du ~/Downloads
# du --disk
function du --description 'Execute du'
# Opinionated guard (C1): fall back to bare command du when disabled.
if not __fish_config_op_enabled (status current-function)
command du $argv
return $status
end
set cmd ""
set args
# Parse override flags and gather remaining args
for arg in $argv
switch $arg
case --disk
set cmd duf
case --dir
set cmd dust
case --dua
set cmd dua
case '*'
set args $args $arg
end
end
# Autodetect if no override flag given
if test -z "$cmd"
if count $args
set first_arg $args[1]
if test -d "$first_arg" -o -f "$first_arg"
set cmd dust
else
set cmd duf
end
else
set cmd duf
end
end
# Tool execution with graceful fallback
switch $cmd
case duf
if type -q duf
duf $args
else
echo "(duf not found — falling back to du)"
command du -sh $args
end
case dust
if type -q dust
dust $args
else
echo "(dust not found — falling back to du)"
command du -sh $args
end
case dua
if type -q dua
dua $args
else
echo "(dua not found — falling back to du)"
command du -sh $args
end
case '*'
# This shouldn't happen, but just in case
command du -sh $args
end
end