#compdef hg chg

# Zsh completion script for mercurial.  Rename this file to _hg and copy

# it into your zsh function path (/usr/share/zsh/site-functions for

# instance)

#

# If you do not want to install it globally, you can copy it somewhere

# else and add that directory to $fpath. This must be done before

# compinit is called. If the file is copied to ~/.zsh.d, your ~/.zshrc

# file could look like this:

#

# fpath=("$HOME/.zsh.d" $fpath)

# autoload -U compinit

# compinit

#

# Copyright (C) 2005, 2006 Steve Borho <steve@borho.org>

# Copyright (C) 2006-10 Brendan Cully <brendan@kublai.com>

#

# Permission is hereby granted, without written agreement and without

# licence or royalty fees, to use, copy, modify, and distribute this

# software and to distribute modified versions of this software for any

# purpose, provided that the above copyright notice and the following

# two paragraphs appear in all copies of this software.

#

# In no event shall the authors be liable to any party for direct,

# indirect, special, incidental, or consequential damages arising out of

# the use of this software and its documentation, even if the authors

# have been advised of the possibility of such damage.

#

# The authors specifically disclaim any warranties, including, but not

# limited to, the implied warranties of merchantability and fitness for

# a particular purpose.  The software provided hereunder is on an "as

# is" basis, and the authors have no obligation to provide maintenance,

# support, updates, enhancements, or modifications.

emulate -LR zsh

setopt extendedglob

local curcontext="$curcontext" state line

typeset -A _hg_cmd_globals

_hg() {

  local cmd _hg_root

  integer i=2

  _hg_cmd_globals=()

  while (( i < $#words ))

  do

    case "$words[$i]" in

      -R|--repository)

        eval _hg_root="$words[$i+1]"

        _hg_cmd_globals+=("$words[$i]" "$_hg_root")

        (( i += 2 ))

        continue

      ;;

      -R*)

        _hg_cmd_globals+="$words[$i]"

        eval _hg_root="${words[$i]#-R}"

       (( i++ ))

       continue

      ;;

      --cwd|--config)

        # pass along arguments to hg completer

        _hg_cmd_globals+=("$words[$i]" "$words[$i+1]")

        (( i += 2 ))

        continue

      ;;

      -*)

        # skip option

        (( i++ ))

        continue

      ;;

    esac

    if [[ -z "$cmd" ]]

    then

      cmd="$words[$i]"

      words[$i]=()

      (( CURRENT-- ))

    fi

    (( i++ ))

  done

  if [[ -z "$cmd" ]]

  then

    _arguments -s -S : $_hg_global_opts \

    ':mercurial command:_hg_commands'

    return

  fi

  # resolve abbreviations and aliases

  if ! (( $+functions[_hg_cmd_${cmd}] ))

  then

    local cmdexp

    (( $#_hg_cmd_list )) || _hg_get_commands

    cmdexp=$_hg_cmd_list[(r)${cmd}*]

    if [[ $cmdexp == $_hg_cmd_list[(R)${cmd}*] ]]

    then

      # might be nice to rewrite the command line with the expansion

      cmd="$cmdexp"

    fi

    if [[ -n $_hg_alias_list[$cmd] ]]

    then

      cmd=$_hg_alias_list[$cmd]

    fi

  fi

  curcontext="${curcontext%:*:*}:hg-${cmd}:"

  zstyle -s ":completion:$curcontext:" cache-policy update_policy

  if [[ -z "$update_policy" ]]

  then

    zstyle ":completion:$curcontext:" cache-policy _hg_cache_policy

  fi

  if (( $+functions[_hg_cmd_${cmd}] ))

  then

    _hg_cmd_${cmd}

  else

    # complete unknown commands normally

    _arguments -s -S : $_hg_global_opts \

      '*:files:_hg_files'

  fi

}

_hg_cache_policy() {

  typeset -a old

  # cache for a minute

  old=( "$1"(mm+10) )

  (( $#old )) && return 0

  return 1

}

_hg_get_commands() {

  typeset -ga _hg_cmd_list

  typeset -gA _hg_alias_list

  local hline cmd cmdalias

  _call_program hg HGPLAINEXCEPT=alias hg debugcomplete -v | while read -A hline

  do

    cmd=$hline[1]

    _hg_cmd_list+=($cmd)

    for cmdalias in $hline[2,-1]

    do

      _hg_cmd_list+=($cmdalias)

      _hg_alias_list+=($cmdalias $cmd)

    done

  done

}

_hg_commands() {

  (( $#_hg_cmd_list )) || _hg_get_commands

  _describe -t commands 'mercurial command' _hg_cmd_list

}

_hg_revrange() {

  compset -P 1 '*:'

  _hg_labels "$@"

}

_hg_labels() {

  labels=("${(f)$(_hg_cmd debugnamecomplete)}")

  (( $#labels )) && _describe -t labels 'labels' labels

}

_hg_bookmarks() {

  typeset -a bookmark bookmarks

  _hg_cmd bookmarks | while read -A bookmark

  do

    if test -z ${bookmark[-1]:#[0-9]*}

    then

      bookmarks+=($bookmark[-2])

    fi

  done

  (( $#bookmarks )) && _describe -t bookmarks 'bookmarks' bookmarks

}

_hg_branches() {

  typeset -a branches

  local branch

  _hg_cmd branches | while read branch

  do

    branches+=(${branch/ #[0-9]#:*})

  done

  (( $#branches )) && _describe -t branches 'branches' branches

}

# likely merge candidates

_hg_mergerevs() {

  typeset -a heads branches

  local revset='sort(head() and not ., -rev)'

  heads=(${(f)"$(_hg_cmd log -r '$revset' --template '{rev}:{branch}\\n')"})

  (( $#heads )) && _describe -t heads 'heads' heads

  branches=(${(S)heads/#*:/})

  (( $#branches )) && _describe -t branches 'branches' branches

}

_hg_files() {

  if [[ -n "$_hg_root" ]]

  then

    [[ -d "$_hg_root/.hg" ]] || return

    case "$_hg_root" in

      /*)

        _files -W $_hg_root

      ;;

      *)

        _files -W $PWD/$_hg_root

      ;;

    esac

  else

    _files

  fi

}

_hg_status() {

  [[ -d $PREFIX ]] || PREFIX=$PREFIX:h

  status_files=(${(ps:\0:)"$(_hg_cmd status -0n$1 ./$PREFIX)"})

}

_hg_unknown() {

  typeset -a status_files

  _hg_status u

  _wanted files expl 'unknown files' _multi_parts / status_files

}

_hg_missing() {

  typeset -a status_files

  _hg_status d

  _wanted files expl 'missing files' _multi_parts / status_files

}

_hg_committable() {

  typeset -a status_files

  _hg_status mar

  _wanted files expl 'modified, added or removed files' _multi_parts / status_files

}

_hg_resolve() {

  local rstate rpath

  [[ -d $PREFIX ]] || PREFIX=$PREFIX:h

  _hg_cmd resolve -l ./$PREFIX -T '{mergestatus}\ {relpath\(path\)}\\n' | while read rstate rpath

  do

    [[ $rstate == 'R' ]] && resolved_files+=($rpath)

    [[ $rstate == 'U' ]] && unresolved_files+=($rpath)

  done

}

_hg_resolved() {

  typeset -a resolved_files unresolved_files

  _hg_resolve

  _wanted files expl 'resolved files' _multi_parts / resolved_files

}

_hg_unresolved() {

  typeset -a resolved_files unresolved_files

  _hg_resolve

  _wanted files expl 'unresolved files' _multi_parts / unresolved_files

}

_hg_config() {

    typeset -a items

    items=(${${(%f)"$(_call_program hg hg showconfig)"}%%\=*})

    (( $#items )) && _describe -t config 'config item' items

}

_hg_internal_merge_tools=(

  \\:dump \\:fail \\:forcedump \\:local \\:merge \\:merge-local \\:merge-other

  \\:merge3 \\:other \\:prompt \\:tagmerge \\:union

)

_hg_merge_tools() {

  typeset -a external_tools

  _describe -t internal_tools 'internal merge tools' _hg_internal_merge_tools

  external_tools=(${(f)"$(_hg_cmd showconfig merge-tools | cut -d . -f 2)"})

  (( $#external_tools )) && _describe -t external_tools 'external merge tools' external_tools

}

_hg_shelves() {

  shelves=("${(f)$(_hg_cmd shelve -ql)}")

  (( $#shelves )) && _describe -t shelves 'shelves' shelves

}

_hg_addremove() {

  _alternative 'files:unknown files:_hg_unknown' \

    'files:missing files:_hg_missing'

}

_hg_ssh_urls() {

  if [[ -prefix */ ]]

  then

    if zstyle -T ":completion:${curcontext}:files" remote-access

    then

      local host=${PREFIX%%/*}

      typeset -a remdirs

      compset -p $(( $#host + 1 ))

      local rempath=${(M)PREFIX##*/}

      local cacheid="hg:${host}-${rempath//\//_}"

      cacheid=${cacheid%[-_]}

      compset -P '*/'

      if _cache_invalid "$cacheid" || ! _retrieve_cache "$cacheid"

      then

        remdirs=(${${(M)${(f)"$(_call_program files ssh -a -x $host ls -1FL "${(q)rempath}")"}##*/}%/})

        _store_cache "$cacheid" remdirs

      fi

      _describe -t directories 'remote directory' remdirs -S/

    else

      _message 'remote directory'

    fi

  else

    if compset -P '*@'

    then

      _hosts -S/

    else

      _alternative 'hosts:remote host name:_hosts -S/' \

        'users:user:_users -S@'

    fi

  fi

}

_hg_urls() {

  if compset -P bundle://

  then

    _files

  elif compset -P ssh://

  then

    _hg_ssh_urls

  elif [[ -prefix *: ]]

  then

    _urls

  else

    local expl

    compset -S '[^:]*'

    _wanted url-schemas expl 'URL schema' compadd -S '' - \

      http:// https:// ssh:// bundle://

  fi

}

_hg_paths() {

  typeset -a paths pnames

  _hg_cmd paths | while read -A pnames

  do

    paths+=($pnames[1])

  done

  (( $#paths )) && _describe -t path-aliases 'repository alias' paths

}

_hg_remote() {

  _alternative 'path-aliases:repository alias:_hg_paths' \

    'directories:directory:_files -/' \

    'urls:URL:_hg_urls'

}

_hg_clone_dest() {

  _alternative 'directories:directory:_files -/' \

    'urls:URL:_hg_urls'

}

_hg_add_help_topics=(

    config dates diffs environment extensions filesets glossary hgignore hgweb

    merge-tools multirevs obsolescence patterns phases revisions revsets

    subrepos templating urls

)

_hg_help_topics() {

    local topics

    (( $#_hg_cmd_list )) || _hg_get_commands

    topics=($_hg_cmd_list $_hg_add_help_topics)

    _describe -t help_topics 'help topics' topics

}

# Common options

_hg_global_opts=(

    '(--repository -R)'{-R+,--repository=}'[repository root directory or name of overlay bundle file]:repository:_files -/'

    '--cwd=[change working directory]:new working directory:_files -/'

    '(--noninteractive -y)'{-y,--noninteractive}'[do not prompt, automatically pick the first choice for all prompts]'

    '(--verbose -v)'{-v,--verbose}'[enable additional output]'

    '*--config=[set/override config option]:defined config items:_hg_config'

    '(--quiet -q)'{-q,--quiet}'[suppress output]'

    '(--help -h)'{-h,--help}'[display help and exit]'

    '--debug[enable debugging output]'

    '--debugger[start debugger]'

    '--encoding=[set the charset encoding]:encoding'

    '--encodingmode=[set the charset encoding mode]:encoding mode'

    '--traceback[always print a traceback on exception]'

    '--time[time how long the command takes]'

    '--profile[print command execution profile]'

    '--version[output version information and exit]'

    '--hidden[consider hidden changesets]'

    '--color=[when to colorize]:when:(true false yes no always auto never debug)'

    '--pager=[when to paginate (default: auto)]:when:(true false yes no always auto never)'

)

_hg_pat_opts=(

  '*'{-I+,--include=}'[include names matching the given patterns]:pattern:_files -W $(_hg_cmd root) -/'

  '*'{-X+,--exclude=}'[exclude names matching the given patterns]:pattern:_files -W $(_hg_cmd root) -/')

_hg_date_user_opts=(

  '(--currentdate -D)'{-D,--currentdate}'[record the current date as commit date]'

  '(--currentuser -U)'{-U,--currentuser}'[record the current user as committer]'