ripgrep/complete/_rg

#compdef rg

##
# zsh completion function for ripgrep
#
# Run ci/test_complete.sh after building to ensure that the options supported by
# this function stay in synch with the `rg` binary.
#
# @see http://zsh.sourceforge.net/Doc/Release/Completion-System.html
# @see https://github.com/zsh-users/zsh/blob/master/Etc/completion-style-guide
#
# Originally based on code from the zsh-users project — see copyright notice
# below.

_rg() {
  local curcontext=$curcontext no='!' descr ret=1
  local -a context line state state_descr args tmp suf
  local -A opt_args

  # ripgrep has many options which negate the effect of a more common one — for
  # example, `--no-column` to negate `--column`, and `--messages` to negate
  # `--no-messages`. There are so many of these, and they're so infrequently
  # used, that some users will probably find it irritating if they're completed
  # indiscriminately, so let's not do that unless either the current prefix
  # matches one of those negation options or the user has the `complete-all`
  # style set. Note that this prefix check has to be updated manually to account
  # for all of the potential negation options listed below!
  if
    # (--[imn]* => --ignore*, --messages, --no-*)
    [[ $PREFIX$SUFFIX == --[imn]* ]] ||
    zstyle -t ":complete:$curcontext:*" complete-all
  then
    no=
  fi

  # We make heavy use of argument groups here to prevent the option specs from
  # growing unwieldy. These aren't supported in zsh <5.4, though, so we'll strip
  # them out below if necessary. This makes the exclusions inaccurate on those
  # older versions, but oh well — it's not that big a deal
  args=(
    + '(exclusive)' # Misc. fully exclusive options
    '(: * -)'{-h,--help}'[display help information]'
    '(: * -)'{-V,--version}'[display version information]'

    + '(case)' # Case-sensitivity options
    {-i,--ignore-case}'[search case-insensitively]'
    {-s,--case-sensitive}'[search case-sensitively]'
    {-S,--smart-case}'[search case-insensitively if pattern is all lowercase]'

    + '(context-a)' # Context (after) options
    '(context-c)'{-A+,--after-context=}'[specify lines to show after each match]:number of lines'

    + '(context-b)' # Context (before) options
    '(context-c)'{-B+,--before-context=}'[specify lines to show before each match]:number of lines'

    + '(context-c)' # Context (combined) options
    '(context-a context-b)'{-C+,--context=}'[specify lines to show before and after each match]:number of lines'

    + '(column)' # Column options
    '--column[show column numbers for matches]'
    $no"--no-column[don't show column numbers for matches]"

    + '(count)' # Counting options
    '(passthru)'{-c,--count}'[only show count of matching lines for each file]'
    '(passthru)--count-matches[only show count of individual matches for each file]'

    + file # File-input options
    '*'{-f+,--file=}'[specify file containing patterns to search for]: :_files'

    + '(file-match)' # Files with/without match options
    '(stats)'{-l,--files-with-matches}'[only show names of files with matches]'
    '(stats)--files-without-match[only show names of files without matches]'

    + '(file-name)' # File-name options
    {-H,--with-filename}'[show file name for matches]'
    "--no-filename[don't show file name for matches]"

    + '(fixed)' # Fixed-string options
    {-F,--fixed-strings}'[treat pattern as literal string instead of regular expression]'
    $no"--no-fixed-strings[don't treat pattern as literal string]"

    + '(follow)' # Symlink-following options
    {-L,--follow}'[follow symlinks]'
    $no"--no-follow[don't follow symlinks]"

    + glob # File-glob options
    '*'{-g+,--glob=}'[include/exclude files matching specified glob]:glob'
    '*--iglob=[include/exclude files matching specified case-insensitive glob]:glob'

    + '(heading)' # Heading options
    '(pretty-vimgrep)--heading[show matches grouped by file name]'
    "(pretty-vimgrep)--no-heading[don't show matches grouped by file name]"

    + '(hidden)' # Hidden-file options
    '--hidden[search hidden files and directories]'
    $no"--no-hidden[don't search hidden files and directories]"

    + '(ignore)' # Ignore-file options
    "(--no-ignore-global --no-ignore-parent --no-ignore-vcs)--no-ignore[don't respect ignore files]"
    $no'(--ignore-global --ignore-parent --ignore-vcs)--ignore[respect ignore files]'

    + '(ignore-global)' # Global ignore-file options
    "--no-ignore-global[don't respect global ignore files]"
    $no'--ignore-global[respect global ignore files]'

    + '(ignore-parent)' # Parent ignore-file options
    "--no-ignore-parent[don't respect ignore files in parent directories]"
    $no'--ignore-parent[respect ignore files in parent directories]'

    + '(ignore-vcs)' # VCS ignore-file options
    "--no-ignore-vcs[don't respect version control ignore files]"
    $no'--ignore-vcs[respect version control ignore files]'

    + '(line)' # Line-number options
    {-n,--line-number}'[show line numbers for matches]'
    {-N,--no-line-number}"[don't show line numbers for matches]"

    + '(max-depth)' # Directory-depth options
    '--max-depth=[specify max number of directories to descend]:number of directories'
    '!--maxdepth=:number of directories'

    + '(messages)' # Error-message options
    '(--no-ignore-messages)--no-messages[suppress some error messages]'
    $no"--messages[don't suppress error messages affected by --no-messages]"

    + '(messages-ignore)' # Ignore-error message options
    "--no-ignore-messages[don't show ignore-file parse error messages]"
    $no'--ignore-messages[show ignore-file parse error messages]'

    + '(mmap)' # mmap options
    '--mmap[search using memory maps when possible]'
    "--no-mmap[don't search using memory maps]"

    + '(only)' # Only-match options
    '(passthru replace)'{-o,--only-matching}'[show only matching part of each line]'

    + '(passthru)' # Pass-through options
    '(--vimgrep count only replace)--passthru[show both matching and non-matching lines]'
    '!(--vimgrep count only replace)--passthrough'

    + '(pre)' # Preprocessing options
    '(-z --search-zip)--pre=[specify preprocessor utility]:preprocessor utility:_command_names -e'
    $no'--no-pre[disable preprocessor utility]'

    + '(pretty-vimgrep)' # Pretty/vimgrep display options
    '(heading)'{-p,--pretty}'[alias for --color=always --heading -n]'
    '(heading passthru)--vimgrep[show results in vim-compatible format]'

    + regexp # Explicit pattern options
    '(1 file)*'{-e+,--regexp=}'[specify pattern]:pattern'

    + '(replace)' # Replacement options
    '(count only passthru)'{-r+,--replace=}'[specify string used to replace matches]:replace string'

    + '(sort)' # File-sorting options
    '(threads)--sort-files[sort results by file path (disables parallelism)]'
    $no"--no-sort-files[don't sort results by file path]"

    + stats # Statistics options
    '(--files file-match)--stats[show search statistics]'

    + '(text)' # Binary-search options
    {-a,--text}'[search binary files as if they were text]'
    $no"--no-text[don't search binary files as if they were text]"

    + '(threads)' # Thread-count options
    '(--sort-files)'{-j+,--threads=}'[specify approximate number of threads to use]:number of threads'

    + type # Type options
    '*'{-t+,--type=}'[only search files matching specified type]: :_rg_types'
    '*--type-add=[add new glob for specified file type]: :->typespec'
    '*--type-clear=[clear globs previously defined for specified file type]: :_rg_types'
    # This should actually be exclusive with everything but other type options
    '(: *)--type-list[show all supported file types and their associated globs]'
    '*'{-T+,--type-not=}"[don't search files matching specified file type]: :_rg_types"

    + '(word-line)' # Whole-word/line match options
    {-w,--word-regexp}'[only show matches surrounded by word boundaries]'
    {-x,--line-regexp}'[only show matches surrounded by line boundaries]'

    + '(zip)' # Compression options
    '(--pre)'{-z,--search-zip}'[search in compressed files]'
    $no"--no-search-zip[don't search in compressed files]"

    + misc # Other options — no need to separate these at the moment
    '(-b --byte-offset)'{-b,--byte-offset}'[show 0-based byte offset for each matching line]'
    '--color=[specify when to use colors in output]:when:((
      never\:"never use colors"
      auto\:"use colors or not based on stdout, TERM, etc."
      always\:"always use colors"
      ansi\:"always use ANSI colors (even on Windows)"
    ))'
    '*--colors=[specify color and style settings]: :->colorspec'
    '--context-separator=[specify string used to separate non-continuous context lines in output]:separator'
    '--debug[show debug messages]'
    '--dfa-size-limit=[specify upper size limit of generated DFA]:DFA size (bytes)'
    '(-E --encoding)'{-E+,--encoding=}'[specify text encoding of files to search]: :_rg_encodings'
    "(1 stats)--files[show each file that would be searched (but don't search)]"
    '*--ignore-file=[specify additional ignore file]:ignore file:_files'
    '(-v --invert-match)'{-v,--invert-match}'[invert matching]'
    '(-M --max-columns)'{-M+,--max-columns=}'[specify max length of lines to print]:number of bytes'
    '(-m --max-count)'{-m+,--max-count=}'[specify max number of matches per file]:number of matches'
    '--max-filesize=[specify size above which files should be ignored]:file size (bytes)'
    "--no-config[don't load configuration files]"
    '(-0 --null)'{-0,--null}'[print NUL byte after file names]'
    '--path-separator=[specify path separator to use when printing file names]:separator'
    '(-q --quiet)'{-q,--quiet}'[suppress normal output]'
    '--regex-size-limit=[specify upper size limit of compiled regex]:regex size (bytes)'
    '*'{-u,--unrestricted}'[reduce level of "smart" searching]'

    + operand # Operands
    '(--files --type-list file regexp)1: :_guard "^-*" pattern'
    '(--type-list)*: :_files'
  )

  # This is used with test_complete.sh to verify that there are no options
  # listed in the help output that aren't also defined here
  [[ $_RG_COMPLETE_LIST_ARGS == (1|t*|y*) ]] && {
    print -rl - $args
    return 0
  }

  # Strip out argument groups where unsupported (see above)
  [[ $ZSH_VERSION == (4|5.<0-3>)(.*)# ]] &&
  args=( ${(@)args:#(#i)(+|[a-z0-9][a-z0-9_-]#|\([a-z0-9][a-z0-9_-]#\))} )

  _arguments -C -s -S : $args && ret=0

  case $state in
    colorspec)
      if [[ ${IPREFIX#--*=}$PREFIX == [^:]# ]]; then
        suf=( -qS: )
        tmp=(
          'column:specify coloring for column numbers'
          'line:specify coloring for line numbers'
          'match:specify coloring for match text'
          'path:specify coloring for file names'
        )
        descr='color/style type'
      elif [[ ${IPREFIX#--*=}$PREFIX == (column|line|match|path):[^:]# ]]; then
        suf=( -qS: )
        tmp=(
          'none:clear color/style for type'
          'bg:specify background color'
          'fg:specify foreground color'
          'style:specify text style'
        )
        descr='color/style attribute'
      elif [[ ${IPREFIX#--*=}$PREFIX == [^:]##:(bg|fg):[^:]# ]]; then
        tmp=( black blue green red cyan magenta yellow white )
        descr='color name or r,g,b'
      elif [[ ${IPREFIX#--*=}$PREFIX == [^:]##:style:[^:]# ]]; then
        tmp=( {,no}bold {,no}intense {,no}underline )
        descr='style name'
      else
        _message -e colorspec 'no more arguments'
      fi

      (( $#tmp )) && {
        compset -P '*:'
        _describe -t colorspec $descr tmp $suf && ret=0
      }
      ;;

    typespec)
      if compset -P '[^:]##:include:'; then
        _sequence -s , _rg_types && ret=0
      # @todo This bit in particular could be better, but it's a little
      # complex, and attempting to solve it seems to run us up against a crash
      # bug — zsh # 40362
      elif compset -P '[^:]##:'; then
        _message 'glob or include directive' && ret=1
      elif [[ ! -prefix *:* ]]; then
        _rg_types -qS : && ret=0
      fi
      ;;
  esac

  return ret
}

# Complete encodings
_rg_encodings() {
  local -a expl
  local -aU _encodings

  # This is impossible to read, but these encodings rarely if ever change, so it
  # probably doesn't matter. They are derived from the list given here:
  # https://encoding.spec.whatwg.org/#concept-encoding-get
  _encodings=(
    {{,us-}ascii,arabic,chinese,cyrillic,greek{,8},hebrew,korean}
    logical visual mac {,cs}macintosh x-mac-{cyrillic,roman,ukrainian}
    866 ibm{819,866} csibm866
    big5{,-hkscs} {cn-,cs}big5 x-x-big5
    cp{819,866,125{0..8}} x-cp125{0..8}
    csiso2022{jp,kr} csiso8859{6,8}{e,i}
    csisolatin{{1..6},9} csisolatin{arabic,cyrillic,greek,hebrew}
    ecma-{114,118} asmo-708 elot_928 sun_eu_greek
    euc-{jp,kr} x-euc-jp cseuckr cseucpkdfmtjapanese
    {,x-}gbk csiso58gb231280 gb18030 {,cs}gb2312 gb_2312{,-80} hz-gb-2312
    iso-2022-{cn,cn-ext,jp,kr}
    iso8859{,-}{{1..11},13,14,15}
    iso-8859-{{1..11},{6,8}-{e,i},13,14,15,16} iso_8859-{{1..9},15}
    iso_8859-{1,2,6,7}:1987 iso_8859-{3,4,5,8}:1988 iso_8859-9:1989
    iso-ir-{58,100,101,109,110,126,127,138,144,148,149,157}
    koi{,8,8-r,8-ru,8-u,8_r} cskoi8r
    ks_c_5601-{1987,1989} ksc{,_}5691 csksc56011987
    latin{1..6} l{{1..6},9}
    shift{-,_}jis csshiftjis {,x-}sjis ms_kanji ms932
    utf{,-}8 utf-16{,be,le} unicode-1-1-utf-8
    windows-{31j,874,949,125{0..8}} dos-874 tis-620 ansi_x3.4-1968
    x-user-defined auto
  )

  _wanted encodings expl encoding compadd -a "$@" - _encodings
}

# Complete file types
_rg_types() {
  local -a expl
  local -aU _types

  _types=( ${(@)${(f)"$( _call_program types rg --type-list )"}%%:*} )

  _wanted types expl 'file type' compadd -a "$@" - _types
}

_rg "$@"

# ------------------------------------------------------------------------------
# Copyright (c) 2011 Github zsh-users - http://github.com/zsh-users
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the zsh-users nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL ZSH-USERS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ------------------------------------------------------------------------------
# Description
# -----------
#
#  Completion script for ripgrep
#
# ------------------------------------------------------------------------------
# Authors
# -------
#
#  * arcizan <ghostrevery@gmail.com>
#  * MaskRay <i@maskray.me>
#
# ------------------------------------------------------------------------------

# Local Variables:
# mode: shell-script
# coding: utf-8-unix
# indent-tabs-mode: nil
# sh-indentation: 2
# sh-basic-offset: 2
# End:
# vim: ft=zsh sw=2 ts=2 et