bat/assets/completions/bat.bash.in
Ville Skyttä 2dbc88d3af Improve bash completion escaping
`compopt -o filenames` is a cheap way to accomplish mostly wanted
behavior. However it is semantically incorrect when we are not actually
completing filenames, and has side effects -- for example adds a
trailing slash to candidates matching present dirs.

bash >= 4.1 can `printf -v` to an array index, use it instead where
available.
2022-09-11 21:54:22 +02:00

190 lines
3.7 KiB
Bash
Vendored

# shellcheck disable=SC2207
# Requires https://github.com/scop/bash-completion
# Macs have bash3 for which the bash-completion package doesn't include
# _init_completion. This is a minimal version of that function.
__bat_init_completion()
{
COMPREPLY=()
_get_comp_words_by_ref "$@" cur prev words cword
}
__bat_escape_completions()
{
# Do not escape if completing a quoted value.
[[ $cur == [\"\']* ]] && return 0
# printf -v to an array index is available in bash >= 4.1.
# Use it if available, as -o filenames is semantically incorrect if
# we are not actually completing filenames, and it has side effects
# (e.g. adds trailing slash to candidates matching present dirs).
if ((
BASH_VERSINFO[0] > 4 || \
BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] > 0
)); then
local i
for i in ${!COMPREPLY[*]}; do
printf -v "COMPREPLY[i]" %q "${COMPREPLY[i]}"
done
else
compopt -o filenames
fi
}
_bat() {
local cur prev words cword split=false
if declare -F _init_completion >/dev/null 2>&1; then
_init_completion -s || return 0
else
__bat_init_completion -n "=" || return 0
_split_longopt && split=true
fi
if [[ ${words[1]-} == cache ]]; then
case $prev in
--source | --target)
_filedir -d
return 0
;;
esac
COMPREPLY=($(compgen -W "
--build
--clear
--source
--target
--blank
--help
" -- "$cur"))
return 0
fi
case $prev in
-l | --language)
local IFS=$'\n'
COMPREPLY=($(compgen -W "$(
"$1" --list-languages | while IFS=: read -r lang _; do
printf "%s\n" "$lang"
done
)" -- "$cur"))
__bat_escape_completions
return 0
;;
-H | --highlight-line | \
--diff-context | \
--tabs | \
--terminal-width | \
-m | --map-syntax | \
--ignored-suffix | \
--list-themes | \
--line-range | \
-L | --list-languages | \
--diagnostic | \
--acknowledgements | \
-h | --help | \
-V | --version | \
--cache-dir | \
--config-dir | \
--config-file | \
--generate-config-file)
# argument required but no completion available, or option
# causes an exit
return 0
;;
--file-name)
_filedir
return 0
;;
--wrap)
COMPREPLY=($(compgen -W "auto never character" -- "$cur"))
return 0
;;
--color | --decorations | --paging)
COMPREPLY=($(compgen -W "auto never always" -- "$cur"))
return 0
;;
--italic-text)
COMPREPLY=($(compgen -W "always never" -- "$cur"))
return 0
;;
--pager)
COMPREPLY=($(compgen -c -- "$cur"))
return 0
;;
--theme)
local IFS=$'\n'
COMPREPLY=($(compgen -W "$("$1" --list-themes)" -- "$cur"))
__bat_escape_completions
return 0
;;
--style)
# shellcheck disable=SC2034
local -a styles=(
default
full
auto
plain
changes
header
header-filename
header-filesize
grid
rule
numbers
snip
)
# shellcheck disable=SC2016
if declare -F _comp_delimited >/dev/null 2>&1; then
# bash-completion > 2.11
_comp_delimited , -W '"${styles[@]}"'
else
COMPREPLY=($(compgen -W '${styles[@]}' -- "$cur"))
fi
return 0
esac
$split && return 0
if [[ $cur == -* ]]; then
# --unbuffered excluded intentionally (no-op)
COMPREPLY=($(compgen -W "
--show-all
--plain
--language
--highlight-line
--file-name
--diff
--diff-context
--tabs
--wrap
--terminal-width
--number
--color
--italic-text
--decorations
--force-colorization
--paging
--pager
--map-syntax
--ignored-suffix
--theme
--list-themes
--style
--line-range
--list-languages
--diagnostic
--acknowledgements
--help
--version
--cache-dir
--config-dir
--config-file
--generate-config-file
" -- "$cur"))
return 0
fi
_filedir
((cword == 1)) && COMPREPLY+=($(compgen -W cache -- "$cur"))
} && complete -F _bat {{PROJECT_EXECUTABLE}}