--repo: rewrite in bash

Library/Homebrew/cmd/--repository.sh

@@ -0,0 +1,33 @@
+#:  * `--repository`, `--repo` [<tap> ...]
+#:
+#:  Display where Homebrew's git repository is located.
+#:
+#:  If <user>`/`<repo> are provided, display where tap <user>`/`<repo>'s directory is located.
+
+normalize-tap-arg() {
+  local tap="$1"
+  local user_repo=(${tap//\// })
+  if [ ${#user_repo[@]} -eq 2 ]; then
+    if ! [[ "${user_repo[1]}" =~ ^homebrew-.+ ]]; then
+      user_repo[1]="homebrew-${user_repo[1]}"
+    fi
+    echo "${user_repo[0]}/${user_repo[1]}" | tr '[:upper:]' '[:lower:]'
+  fi
+}
+
+homebrew---repository() {
+  # HOMEBREW_REPOSITORY is set by brew.sh
+  # shellcheck disable=SC2154
+  if [ $# -eq 0 ]; then
+    echo "${HOMEBREW_REPOSITORY}"
+  else
+    for tap in "$@"; do
+      tap="$(normalize-tap-arg "${tap}")"
+      if [ -n "${tap}" ]; then
+        echo "${HOMEBREW_REPOSITORY}/Library/Taps/${tap}"
+      else
+        odie "Invalid tap name provided!"
+      fi
+    done
+  fi
+}

completions/bash/brew

@@ -231,40 +231,6 @@ _brew___prefix() {
   __brew_complete_formulae
 }
 
-_brew___repo() {
-  local cur="${COMP_WORDS[COMP_CWORD]}"
-  case "${cur}" in
-    -*)
-      __brewcomp "
-      --debug
-      --help
-      --quiet
-      --verbose
-      "
-      return
-      ;;
-    *) ;;
-  esac
-  __brew_complete_tapped
-}
-
-_brew___repository() {
-  local cur="${COMP_WORDS[COMP_CWORD]}"
-  case "${cur}" in
-    -*)
-      __brewcomp "
-      --debug
-      --help
-      --quiet
-      --verbose
-      "
-      return
-      ;;
-    *) ;;
-  esac
-  __brew_complete_tapped
-}
-
 _brew__s() {
   local cur="${COMP_WORDS[COMP_CWORD]}"
   case "${cur}" in
@@ -2620,8 +2586,6 @@ _brew() {
     --config) _brew___config ;;
     --env) _brew___env ;;
     --prefix) _brew___prefix ;;
-    --repo) _brew___repo ;;
-    --repository) _brew___repository ;;
     -S) _brew__s ;;
     abv) _brew_abv ;;
     analytics) _brew_analytics ;;

completions/fish/brew.fish

@@ -248,22 +248,6 @@ __fish_brew_complete_arg '--prefix' -l verbose -d 'Make some output more verbose
 __fish_brew_complete_arg '--prefix' -a '(__fish_brew_suggest_formulae_all)'
 
 
-__fish_brew_complete_cmd '--repo' 'Display where Homebrew\'s git repository is located'
-__fish_brew_complete_arg '--repo' -l debug -d 'Display any debugging information'
-__fish_brew_complete_arg '--repo' -l help -d 'Show this message'
-__fish_brew_complete_arg '--repo' -l quiet -d 'Make some output more quiet'
-__fish_brew_complete_arg '--repo' -l verbose -d 'Make some output more verbose'
-__fish_brew_complete_arg '--repo' -a '(__fish_brew_suggest_taps_installed)'
-
-
-__fish_brew_complete_cmd '--repository' 'Display where Homebrew\'s git repository is located'
-__fish_brew_complete_arg '--repository' -l debug -d 'Display any debugging information'
-__fish_brew_complete_arg '--repository' -l help -d 'Show this message'
-__fish_brew_complete_arg '--repository' -l quiet -d 'Make some output more quiet'
-__fish_brew_complete_arg '--repository' -l verbose -d 'Make some output more verbose'
-__fish_brew_complete_arg '--repository' -a '(__fish_brew_suggest_taps_installed)'
-
-
 __fish_brew_complete_cmd '-S' 'Perform a substring search of cask tokens and formula names for text'
 __fish_brew_complete_arg '-S' -l archlinux -d 'Search for text in the given database'
 __fish_brew_complete_arg '-S' -l cask -d 'Search for casks'

completions/zsh/_brew

@@ -334,28 +334,6 @@ _brew___prefix() {
     '*::formula:__brew_formulae'
 }
 
-# brew --repo
-_brew___repo() {
-  _arguments \
-    '--debug[Display any debugging information]' \
-    '--help[Show this message]' \
-    '--quiet[Make some output more quiet]' \
-    '--verbose[Make some output more verbose]' \
-    - tap \
-    '*::tap:__brew_any_tap'
-}
-
-# brew --repository
-_brew___repository() {
-  _arguments \
-    '--debug[Display any debugging information]' \
-    '--help[Show this message]' \
-    '--quiet[Make some output more quiet]' \
-    '--verbose[Make some output more verbose]' \
-    - tap \
-    '*::tap:__brew_any_tap'
-}
-
 # brew -S
 _brew__s() {
   _arguments \