refactor(ag): remove `ag` completion plugin (#12576)

BREAKING CHANGE: the `ag` "The Silver Searcher" plugin has been removed, as it
only shipped its completion, which is now already included in all the usual
package managers.

plugins/ag/README.md

@@ -1,13 +0,0 @@
-# The Silver Searcher
-
-This plugin provides completion support for [`ag`](https://github.com/ggreer/the_silver_searcher).
-
-To use it, add ag to the plugins array in your zshrc file.
-
-```zsh
-plugins=(... ag)
-```
-
-## INSTALLATION NOTES
-
-Besides oh-my-zsh, `ag` needs to be installed by following these steps: https://github.com/ggreer/the_silver_searcher#installing.

plugins/ag/_ag

@@ -1,66 +0,0 @@
-#compdef ag
-#autoload
-
-typeset -A opt_args
-
-# Took the liberty of not listing every option… specially aliases and -D
-_ag () {
-  local -a _1st_arguments
-  _1st_arguments=(
-    '--ackmate:Print results in AckMate-parseable format'
-    {'-A','--after'}':[LINES] Print lines after match (Default: 2)'
-    {'-B','--before'}':[LINES] Print lines before match (Default: 2)'
-    '--break:Print newlines between matches in different files'
-    '--nobreak:Do not print newlines between matches in different files'
-    {'-c','--count'}':Only print the number of matches in each file'
-    '--color:Print color codes in results (Default: On)'
-    '--nocolor:Do not print color codes in results'
-    '--color-line-number:Color codes for line numbers (Default: 1;33)'
-    '--color-match:Color codes for result match numbers (Default: 30;43)'
-    '--color-path:Color codes for path names (Default: 1;32)'
-    '--column:Print column numbers in results'
-    {'-H','--heading'}':Print file names (On unless searching a single file)'
-    '--noheading:Do not print file names (On unless searching a single file)'
-    '--line-numbers:Print line numbers even for streams'
-    {'-C','--context'}':[LINES] Print lines before and after matches (Default: 2)'
-    '-g:[PATTERN] Print filenames matching PATTERN'
-    {'-l','--files-with-matches'}':Only print filenames that contain matches'
-    {'-L','--files-without-matches'}':Only print filenames that do not contain matches'
-    '--no-numbers:Do not print line numbers'
-    {'-o','--only-matching'}':Prints only the matching part of the lines'
-    '--print-long-lines:Print matches on very long lines (Default: 2k characters)'
-    '--passthrough:When searching a stream, print all lines even if they do not match'
-    '--silent:Suppress all log messages, including errors'
-    '--stats:Print stats (files scanned, time taken, etc.)'
-    '--vimgrep:Print results like vim :vimgrep /pattern/g would'
-    {'-0','--null'}':Separate filenames with null (for "xargs -0")'
-
-    {'-a','--all-types'}':Search all files (does not include hidden files / .gitignore)'
-    '--depth:[NUM] Search up to NUM directories deep (Default: 25)'
-    {'-f','--follow'}':Follow symlinks'
-    {'-G','--file-search-regex'}':[PATTERN] Limit search to filenames matching PATTERN'
-    '--hidden:Search hidden files (obeys .*ignore files)'
-    {'-i','--ignore-case'}':Match case insensitively'
-    '--ignore:[PATTERN] Ignore files/directories matching PATTERN'
-    {'-m','--max-count'}':[NUM] Skip the rest of a file after NUM matches (Default: 10k)'
-    {'-p','--path-to-agignore'}':[PATH] Use .agignore file at PATH'
-    {'-Q','--literal'}':Do not parse PATTERN as a regular expression'
-    {'-s','--case-sensitive'}':Match case'
-    {'-S','--smart-case'}':Insensitive match unless PATTERN has uppercase (Default: On)'
-    '--search-binary:Search binary files for matches'
-    {'-t','--all-text'}':Search all text files (Hidden files not included)'
-    {'-u','--unrestricted'}':Search all files (ignore .agignore and _all_)'
-    {'-U','--skip-vcs-ignores'}':Ignore VCS files (stil obey .agignore)'
-    {'-v','--invert-match'}':Invert match'
-    {'-w','--word-regexp'}':Only match whole words'
-    {'-z','--search-zip'}':Search contents of compressed (e.g., gzip) files'
-
-    '--list-file-types:list of supported file types'
-  )
-
-  if [[ $words[-1] =~ "^-" ]]; then
-    _describe -t commands "ag options" _1st_arguments && ret=0
-  else
-    _files && ret=0
-  fi
-}