completion: implemented structured declarative bash completions

This will make it tremendously easier to add arguments, subcommands and
special positional option handling. Instead of the need to code the
nested structure via bash and switch cases, we can simply declare
functions and arrays with the matching names according to the
subcommands or argument labels.

Signed-off-by: Levente Polyak <anthraxx@archlinux.org>
This commit is contained in:
Levente Polyak 2023-03-23 23:37:58 +01:00
parent 645a5a9f04
commit f961e2e948
No known key found for this signature in database
GPG Key ID: FC1B547C8D8172C8
1 changed files with 417 additions and 75 deletions

View File

@ -2,89 +2,431 @@
#
# SPDX-License-Identifier: GPL-3.0-or-later
_devtools_compgen() {
local i r
COMPREPLY=($(compgen -W '$*' -- "$cur"))
for ((i=1; i < ${#COMP_WORDS[@]}-1; i++)); do
for r in "${!COMPREPLY[@]}"; do
if [[ ${COMP_WORDS[i]} = "${COMPREPLY[r]}" ]]; then
unset 'COMPREPLY[r]'; break
fi
done
done
}
_DEVTOOLS_LIBRARY_DIR=${_DEVTOOLS_LIBRARY_DIR:-@pkgdatadir@}
# shellcheck source=src/lib/valid-tags.sh
source "${_DEVTOOLS_LIBRARY_DIR}"/lib/valid-tags.sh
# shellcheck source=src/lib/valid-repos.sh
source "${_DEVTOOLS_LIBRARY_DIR}"/lib/valid-repos.sh
_pkgrepo_pkg() {
_devtools_compgen "$(
command pacman "-$1"
)"
}
_binary_arch=${_arch[*]:0:-1}
_colors=(never always auto)
_pkgrepo() {
local cur prev
COMPREPLY=()
cur=$(_get_cword)
prev=${COMP_WORDS[COMP_CWORD-1]}
_pkgrepo_pkg Slq
true
} &&
complete -F _pkgrepo pkgrepo
_makechrootpkg() {
local cur
COMPREPLY=()
_get_comp_words_by_ref cur
case $cur in
-*)
COMPREPLY=( $( compgen -W '-I -c -h -l -r -u' -- "$cur" ) )
;;
*)
_filedir
return 0
;;
esac
true
} &&
_makechrootpkg_args=(
-h
-c
-d
-D
-u
-r
-I
-l
-n
-T
-U
)
_makechrootpkg_args_d_opts() { _filedir -d; }
_makechrootpkg_args_D_opts() { _filedir -d; }
_makechrootpkg_args_r_opts() { _filedir -d; }
_makechrootpkg_args_I_opts() { _filedir '*.pkg.tar.*'; }
_makechrootpkg_args_l_opts() { _filedir -d; }
_makechrootpkg_args_U_opts() { :; }
_makechrootpkg() { __devtools_complete _makechrootpkg; }
complete -F _makechrootpkg makechrootpkg
_mkarchroot() {
local cur
COMPREPLY=()
_get_comp_words_by_ref cur
case $cur in
-*)
COMPREPLY=( $( compgen -W '-C -M -c -h' -- "$cur" ) )
;;
*)
_filedir
return 0
;;
esac
_makerepropkg_args=(
-h
-d
-c
-M
)
_makerepropkg_args_c_opts() { _filedir -d; }
_makerepropkg_args_M_opts() { _filedir '*.conf'; }
_makerepropkg_opts() { _filedir '*.pkg.tar.*'; }
_makerepropkg() { __devtools_complete _makerepropkg; }
complete -F _makerepropkg makerepropkg
true
} &&
_mkarchroot_args=(
-U
-C
-M
-c
-h
)
_mkarchroot_args_U_opts() { _filedir '*.pkg.tar.*'; }
_mkarchroot_args_C_opts() { _filedir '*.conf'; }
_mkarchroot_args_M_opts() { _filedir '*.conf'; }
_mkarchroot_args_c_opts() { _filedir -d; }
_mkarchroot_opts() {
local args
args=$(__pkgctl_word_count_after_subcommand)
if (( args == 0 )); then
_filedir -d
elif (( args >= 1 )); then
_devtools_completions_all_packages
fi
}
_mkarchroot() { __devtools_complete _mkarchroot; }
complete -F _mkarchroot mkarchroot
_arch-nspawn() {
local cur
COMPREPLY=()
_get_comp_words_by_ref cur
case $cur in
-*)
COMPREPLY=( $( compgen -W '-C -M -c -h' -- "$cur" ) )
;;
*)
_filedir
return 0
;;
esac
_arch_nspawn_args=(
-C
-M
-c
-f
-s
-h
)
_arch_nspawn_args_C_opts() { _filedir '*.conf'; }
_arch_nspawn_args_M_opts() { _filedir '*.conf'; }
_arch_nspawn_args_c_opts() { _filedir -d; }
_arch_nspawn_args_f_opts() { _filedir; }
_arch_nspawn_opts() {
local args
args=$(__pkgctl_word_count_after_subcommand)
if (( args == 0 )); then
_filedir -d
fi
}
_arch_nspawn() { __devtools_complete _arch_nspawn; }
complete -F _arch_nspawn arch-nspawn
true
} &&
complete -F _arch-nspawn arch-nspawn
# ex:et ts=2 sw=2 ft=sh
_sogrep_args=(
-v --verbose
-r --refresh
-h --help
)
_sogrep_opts() {
local args
args=$(__pkgctl_word_count_after_subcommand)
if (( args == 0 )); then
_devtools_completions_repo all
fi
}
_sogrep() { __devtools_complete _sogrep; }
complete -F _sogrep sogrep
_offload_build_args=(
-r --repo
-a --arch
-s --server
-h --help
)
_offload_build_args__repo_opts() { _devtools_completions_build_repo; }
_offload_build_args_r_opts() { _offload_build_args__repo_opts; }
_offload_build_args__arch_opts() { _devtools_completions_arch; }
_offload_build_args_a_opts() { _offload_build_args__arch_opts; }
_offload_build_args__server_opts() { :; }
_offload_build_args_s_opts() { _offload_build_args__server_opts; }
_offload_build() { __devtools_complete _offload_build; }
complete -F _offload_build offload-build
_pkgctl_cmds=(
auth
build
db
diff
release
repo
version
)
_pkgctl_args=(
-V --version
-h --help
)
_pkgctl_auth_cmds=(
login
status
)
_pkgctl_auth_login_args=(
-g --gen-access-token
-h --help
)
_pkgctl_auth_status_args=(
-t --show-token
-h --help
)
_pkgctl_build_args=(
--arch
--repo
-s --staging
-t --testing
-o --offload
-c --clean
--pkgver
--pkgrel
--rebuild
-e --edit
-r --release
-m --message
-u --db-update
-h --help
)
_pkgctl_build_args__arch_opts() { _devtools_completions_arch; }
_pkgctl_build_args__repo_opts() { _devtools_completions_repo; }
_pkgctl_build_args__pkgver_opts() { :; }
_pkgctl_build_args__pkgrel_opts() { :; }
_pkgctl_build_args__message_opts() { :; }
_pkgctl_build_args_m_opts() { _pkgctl_build_args__message_opts; }
_pkgctl_build_opts() { _filedir -d; }
_pkgctl_db_cmds=(
move
remove
update
)
_pkgctl_db_move_args=(
-h --help
)
_pkgctl_db_move_opts() {
local subcommand args
subcommand=(db move)
args=$(__pkgctl_word_count_after_subcommand "${subcommand[@]}")
if (( args == 0 )); then
_devtools_completions_repo
elif (( args == 1 )); then
_devtools_completions_repo
elif (( args >= 2 )); then
_devtools_completions_all_packages
fi
}
_pkgctl_db_remove_args=(
-a --arch
-h --help
)
_pkgctl_db_remove_opts() {
local subcommand args
subcommand=(db remove)
args=$(__pkgctl_word_count_after_subcommand "${subcommand[@]}")
if (( args == 0 )); then
_devtools_completions_repo
elif (( args >= 1 )); then
_devtools_completions_all_packages
fi
}
_pkgctl_db_update_args=(
-h --help
)
_pkgctl_release_args=(
-m --message
-r --repo
-s --staging
-t --testing
-u --db-update
-h --help
)
_pkgctl_release_args__message_opts() { :; }
_pkgctl_release_args_m_opts() { _pkgctl_release_args__message_opts; }
_pkgctl_release_args__repo_opts() { _devtools_completions_repo; }
_pkgctl_release_args_r_opts() { _pkgctl_release_args__repo_opts; }
_pkgctl_release_opts() { _filedir -d; }
_pkgctl_repo_cmds=(
clone
configure
create
web
)
_pkgctl_repo_clone_args=(
-m --maintainer
-u --unprivileged
--universe
-h --help
)
_pkgctl_repo_clone_args__maintainer_opts() { :; }
_pkgctl_repo_clone_args_m_opts() { _pkgctl_repo_clone_args__maintainer_opts; }
_pkgctl_repo_clone_opts() { _devtools_completions_all_packages; }
_pkgctl_repo_configure_args=(
-h --help
)
_pkgctl_repo_configure_opts() { _filedir -d; }
_pkgctl_repo_create_args=(
-c --clone
-h --help
)
_pkgctl_repo_web_args=(
-h --help
)
_pkgctl_repo_web_opts() { _filedir -d; }
_pkgctl_diff_args=(
-l --list
-d --diffoscope
-p --pkginfo
-b --buildinfo
-m --makepkg-config
-u -U --unified
-y --side-by-side
--color
-W --width
-P --pool
-v --verbose
-h --help
)
_pkgctl_diff_args__makepkg_config_opts() { _filedir '*.conf'; }
_pkgctl_diff_args_m_opts() { _pkgctl_diff_args__makepkg_config_opts; }
_pkgctl_diff_args__width_opts() { :; }
_pkgctl_diff_args_W_opts() { _pkgctl_diff_args__width_opts; }
_pkgctl_diff_args__color_opts() { _devtools_completions_color; }
_pkgctl_diff_args__pool_opts() { _filedir -d; }
_pkgctl_diff_args_P_opts() { _pkgctl_diff_args__pool_opts; }
_pkgctl_diff_opts() { _devtools_completions_all_packages; }
_pkgctl_version_args=(
-h --help
)
_devtools_completions_color() {
mapfile -t COMPREPLY < <(compgen -W "${_colors[*]}" -- "$cur")
}
_devtools_completions_arch() {
mapfile -t COMPREPLY < <(compgen -W "${_arch[*]}" -- "$cur")
}
_devtools_completions_repo() {
local optional=${1:-}
mapfile -t COMPREPLY < <(compgen -W "${optional} ${_repos[*]}" -- "$cur")
}
_devtools_completions_build_repo() {
mapfile -t COMPREPLY < <(compgen -W "${_build_repos[*]}" -- "$cur")
}
_devtools_completions_all_packages() {
mapfile -t COMPREPLY < <(compgen -W "$(pacman -Sql)" -- "$cur")
}
__devtools_complete() {
local service=$1
local cur prev
# Don't break words at : and =
COMP_WORDBREAKS=${COMP_WORDBREAKS//[:=]}
cur=$(_get_cword)
prev=${COMP_WORDS[COMP_CWORD-1]}
__pkgctl_handle_subcommands "${service}"
return 0
}
__pkgctl_has_func() {
declare -f -- "${1}" &>/dev/null
}
__pkgctl_has_array() {
declare -p -- "${1}" &>/dev/null
}
__pkgctl_is_subcommand() {
__pkgctl_has_array "${1}"_args || \
__pkgctl_has_array "${1}"_cmds
}
__pkgctl_words_after_subcommand() {
local subcommand=("$@")
local subcommand_idx=0
local word prev_word
for ((i = 1; i < ${#COMP_WORDS[@]}; ++i)); do
word=${COMP_WORDS[i]}
prev_word=${COMP_WORDS[i-1]}
# skip options and the current typing
if [[ ${word} == -* ]] || [[ ${word} == "${cur}" ]]; then
continue
fi
# skip until we resolved the passed subcommand
if (( subcommand_idx < ${#subcommand[@]} )); then
if [[ $word == "${subcommand[$subcommand_idx]}" ]]; then
subcommand_idx=$(( subcommand_idx + 1 ))
fi
continue
fi
# skip previous options as they belong to the argument
if [[ ${prev_word} == -* ]] && __pkgctl_has_func "${service_name}_args${prev_word//-/_}_opts"; then
continue
fi
printf "%s\n" "${word}"
done
}
__pkgctl_word_count_after_subcommand() {
local subcommand=("$@")
mapfile -t words < <(__pkgctl_words_after_subcommand "${subcommand[@]}")
echo "${#words[@]}"
}
__pkgctl_handle_subcommands() {
local service_name=${1}
local index=${2:-0}
local word ref
# recurse into nested subcommands
for ((i = index + 1; i < ${#COMP_WORDS[@]}; ++i)); do
word=${COMP_WORDS[i]}
if [[ ${word} == -* ]] || [[ ${word} == "${cur}" ]]; then
continue
fi
if __pkgctl_is_subcommand "${service_name}_${word}"; then
__pkgctl_handle_subcommands "${service_name}_${word}" "${i}"
return
fi
done
# dynamic argument options
if [[ $prev == -* ]] && word=${prev//-/_} && __pkgctl_has_func "${service_name}_args${word}_opts"; then
"${service_name}_args${word}_opts"
# dynamic subcommand options
elif [[ $cur != -* ]] && __pkgctl_has_func "${service_name}_opts"; then
"${service_name}_opts"
# subcommand argument array
elif ( ! __pkgctl_has_array "${service_name}"_cmds || [[ $cur == -* ]] ) && __pkgctl_has_array "${service_name}_args"; then
declare -n ref="${service_name}_args"
mapfile -t COMPREPLY < <(compgen -W "${ref[*]}" -- "$cur")
# subcommand array
elif __pkgctl_has_array "${service_name}"_cmds; then
declare -n ref="${service_name}_cmds"
mapfile -t COMPREPLY < <(compgen -W "${ref[*]}" -- "$cur")
fi
}
_pkgctl() { __devtools_complete _pkgctl; }
complete -F _pkgctl pkgctl
# ex:noet ts=4 sw=4 ft=sh