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feat: Add Bash completion for Homebrew aliases #18791

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feat: Add Bash completion for Homebrew aliases #18791

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23 changes: 23 additions & 0 deletions Library/Homebrew/completions/bash.erb
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@ __brew_complete_commands() {

local cur="${COMP_WORDS[COMP_CWORD]}"
local cmds
local -a cmd_aliases

if [[ -n ${__HOMEBREW_COMMANDS} ]]
then
Expand All @@ -123,6 +124,8 @@ __brew_complete_commands() {
then
cmds="$(< "${HOMEBREW_REPOSITORY}/completions/internal_commands_list.txt" \grep -v instal$)"
fi
while read -r alias; do cmd_aliases+=("${alias}"); done < <(compgen -W "$(__brew_list_aliases)")
[[ -n ${cmd_aliases[*]+"${cmd_aliases[*]}"} ]] && cmds+=" ${cmd_aliases[*]} alias unalias"
while read -r line; do COMPREPLY+=("${line}"); done < <(compgen -W "${cmds}" -- "${cur}")
export __HOMEBREW_COMMANDS=${cmds}
}
Expand All @@ -132,6 +135,26 @@ __brew_complete_files() {
command -v compopt &> /dev/null && compopt -o default
}

# https://github.com/Homebrew/homebrew-aliases
__brew_list_aliases() {
local aliases_dir="${HOME}/.brew-aliases"
local pattern="^# alias: brew ([[:alnum:]-]+)$"
local -a aliases

[[ ! -d ${aliases_dir} ]] && return

for file in "${aliases_dir}"/*; do
[[ ! -f ${file} ]] && continue
while read -r line; do
if [[ ${line} =~ ${pattern} ]]; then
aliases+=("${BASH_REMATCH[1]}")
break
fi
done < "${file}"
done
[[ -n ${aliases[*]+"${aliases[*]}"} ]] && echo "${aliases[@]}"
}

<%= completion_functions.join("\n") %>

_brew() {
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