stockholm/2configs/tv/bash_completion.sh
tv 74497c357e 2 tv.base: add bash completion for ssh
2configs/tv/bash_completion.sh imported from bash-completion-2.1
2015-07-18 12:48:57 +02:00

780 lines
28 KiB
Bash

# Expand variable starting with tilde (~)
# We want to expand ~foo/... to /home/foo/... to avoid problems when
# word-to-complete starting with a tilde is fed to commands and ending up
# quoted instead of expanded.
# Only the first portion of the variable from the tilde up to the first slash
# (~../) is expanded. The remainder of the variable, containing for example
# a dollar sign variable ($) or asterisk (*) is not expanded.
# Example usage:
#
# $ v="~"; __expand_tilde_by_ref v; echo "$v"
#
# Example output:
#
# v output
# -------- ----------------
# ~ /home/user
# ~foo/bar /home/foo/bar
# ~foo/$HOME /home/foo/$HOME
# ~foo/a b /home/foo/a b
# ~foo/* /home/foo/*
#
# @param $1 Name of variable (not the value of the variable) to expand
__expand_tilde_by_ref()
{
# Does $1 start with tilde (~)?
if [[ ${!1} == \~* ]]; then
# Does $1 contain slash (/)?
if [[ ${!1} == */* ]]; then
# Yes, $1 contains slash;
# 1: Remove * including and after first slash (/), i.e. "~a/b"
# becomes "~a". Double quotes allow eval.
# 2: Remove * before the first slash (/), i.e. "~a/b"
# becomes "b". Single quotes prevent eval.
# +-----1----+ +---2----+
eval $1="${!1/%\/*}"/'${!1#*/}'
else
# No, $1 doesn't contain slash
eval $1="${!1}"
fi
fi
} # __expand_tilde_by_ref()
# Get the word to complete.
# This is nicer than ${COMP_WORDS[$COMP_CWORD]}, since it handles cases
# where the user is completing in the middle of a word.
# (For example, if the line is "ls foobar",
# and the cursor is here --------> ^
# @param $1 string Characters out of $COMP_WORDBREAKS which should NOT be
# considered word breaks. This is useful for things like scp where
# we want to return host:path and not only path, so we would pass the
# colon (:) as $1 in this case.
# @param $2 integer Index number of word to return, negatively offset to the
# current word (default is 0, previous is 1), respecting the exclusions
# given at $1. For example, `_get_cword "=:" 1' returns the word left of
# the current word, respecting the exclusions "=:".
# @deprecated Use `_get_comp_words_by_ref cur' instead
# @see _get_comp_words_by_ref()
_get_cword()
{
local LC_CTYPE=C
local cword words
__reassemble_comp_words_by_ref "$1" words cword
# return previous word offset by $2
if [[ ${2//[^0-9]/} ]]; then
printf "%s" "${words[cword-$2]}"
elif [[ "${#words[cword]}" -eq 0 || "$COMP_POINT" == "${#COMP_LINE}" ]]; then
printf "%s" "${words[cword]}"
else
local i
local cur="$COMP_LINE"
local index="$COMP_POINT"
for (( i = 0; i <= cword; ++i )); do
while [[
# Current word fits in $cur?
"${#cur}" -ge ${#words[i]} &&
# $cur doesn't match cword?
"${cur:0:${#words[i]}}" != "${words[i]}"
]]; do
# Strip first character
cur="${cur:1}"
# Decrease cursor position
((index--))
done
# Does found word matches cword?
if [[ "$i" -lt "$cword" ]]; then
# No, cword lies further;
local old_size="${#cur}"
cur="${cur#${words[i]}}"
local new_size="${#cur}"
index=$(( index - old_size + new_size ))
fi
done
if [[ "${words[cword]:0:${#cur}}" != "$cur" ]]; then
# We messed up! At least return the whole word so things
# keep working
printf "%s" "${words[cword]}"
else
printf "%s" "${cur:0:$index}"
fi
fi
} # _get_cword()
# Get word previous to the current word.
# This is a good alternative to `prev=${COMP_WORDS[COMP_CWORD-1]}' because bash4
# will properly return the previous word with respect to any given exclusions to
# COMP_WORDBREAKS.
# @deprecated Use `_get_comp_words_by_ref cur prev' instead
# @see _get_comp_words_by_ref()
#
_get_pword()
{
if [[ $COMP_CWORD -ge 1 ]]; then
_get_cword "${@:-}" 1
fi
}
# Complete variables.
# @return True (0) if variables were completed,
# False (> 0) if not.
_variables()
{
if [[ $cur =~ ^(\$\{?)([A-Za-z0-9_]*)$ ]]; then
[[ $cur == *{* ]] && local suffix=} || local suffix=
COMPREPLY+=( $( compgen -P ${BASH_REMATCH[1]} -S "$suffix" -v -- \
"${BASH_REMATCH[2]}" ) )
return 0
fi
return 1
}
# Assign variable one scope above the caller
# Usage: local "$1" && _upvar $1 "value(s)"
# Param: $1 Variable name to assign value to
# Param: $* Value(s) to assign. If multiple values, an array is
# assigned, otherwise a single value is assigned.
# NOTE: For assigning multiple variables, use '_upvars'. Do NOT
# use multiple '_upvar' calls, since one '_upvar' call might
# reassign a variable to be used by another '_upvar' call.
# See: http://fvue.nl/wiki/Bash:_Passing_variables_by_reference
_upvar()
{
if unset -v "$1"; then # Unset & validate varname
if (( $# == 2 )); then
eval $1=\"\$2\" # Return single value
else
eval $1=\(\"\${@:2}\"\) # Return array
fi
fi
}
# Assign variables one scope above the caller
# Usage: local varname [varname ...] &&
# _upvars [-v varname value] | [-aN varname [value ...]] ...
# Available OPTIONS:
# -aN Assign next N values to varname as array
# -v Assign single value to varname
# Return: 1 if error occurs
# See: http://fvue.nl/wiki/Bash:_Passing_variables_by_reference
_upvars()
{
if ! (( $# )); then
echo "${FUNCNAME[0]}: usage: ${FUNCNAME[0]} [-v varname"\
"value] | [-aN varname [value ...]] ..." 1>&2
return 2
fi
while (( $# )); do
case $1 in
-a*)
# Error checking
[[ ${1#-a} ]] || { echo "bash: ${FUNCNAME[0]}: \`$1': missing"\
"number specifier" 1>&2; return 1; }
printf %d "${1#-a}" &> /dev/null || { echo "bash:"\
"${FUNCNAME[0]}: \`$1': invalid number specifier" 1>&2
return 1; }
# Assign array of -aN elements
[[ "$2" ]] && unset -v "$2" && eval $2=\(\"\${@:3:${1#-a}}\"\) &&
shift $((${1#-a} + 2)) || { echo "bash: ${FUNCNAME[0]}:"\
"\`$1${2+ }$2': missing argument(s)" 1>&2; return 1; }
;;
-v)
# Assign single value
[[ "$2" ]] && unset -v "$2" && eval $2=\"\$3\" &&
shift 3 || { echo "bash: ${FUNCNAME[0]}: $1: missing"\
"argument(s)" 1>&2; return 1; }
;;
*)
echo "bash: ${FUNCNAME[0]}: $1: invalid option" 1>&2
return 1 ;;
esac
done
}
# @param $1 exclude Characters out of $COMP_WORDBREAKS which should NOT be
# considered word breaks. This is useful for things like scp where
# we want to return host:path and not only path, so we would pass the
# colon (:) as $1 in this case.
# @param $2 words Name of variable to return words to
# @param $3 cword Name of variable to return cword to
# @param $4 cur Name of variable to return current word to complete to
# @see __reassemble_comp_words_by_ref()
__get_cword_at_cursor_by_ref()
{
local cword words=()
__reassemble_comp_words_by_ref "$1" words cword
local i cur index=$COMP_POINT lead=${COMP_LINE:0:$COMP_POINT}
# Cursor not at position 0 and not leaded by just space(s)?
if [[ $index -gt 0 && ( $lead && ${lead//[[:space:]]} ) ]]; then
cur=$COMP_LINE
for (( i = 0; i <= cword; ++i )); do
while [[
# Current word fits in $cur?
${#cur} -ge ${#words[i]} &&
# $cur doesn't match cword?
"${cur:0:${#words[i]}}" != "${words[i]}"
]]; do
# Strip first character
cur="${cur:1}"
# Decrease cursor position
((index--))
done
# Does found word match cword?
if [[ $i -lt $cword ]]; then
# No, cword lies further;
local old_size=${#cur}
cur="${cur#"${words[i]}"}"
local new_size=${#cur}
index=$(( index - old_size + new_size ))
fi
done
# Clear $cur if just space(s)
[[ $cur && ! ${cur//[[:space:]]} ]] && cur=
# Zero $index if negative
[[ $index -lt 0 ]] && index=0
fi
local "$2" "$3" "$4" && _upvars -a${#words[@]} $2 "${words[@]}" \
-v $3 "$cword" -v $4 "${cur:0:$index}"
}
# Reassemble command line words, excluding specified characters from the
# list of word completion separators (COMP_WORDBREAKS).
# @param $1 chars Characters out of $COMP_WORDBREAKS which should
# NOT be considered word breaks. This is useful for things like scp where
# we want to return host:path and not only path, so we would pass the
# colon (:) as $1 here.
# @param $2 words Name of variable to return words to
# @param $3 cword Name of variable to return cword to
#
__reassemble_comp_words_by_ref()
{
local exclude i j line ref
# Exclude word separator characters?
if [[ $1 ]]; then
# Yes, exclude word separator characters;
# Exclude only those characters, which were really included
exclude="${1//[^$COMP_WORDBREAKS]}"
fi
# Default to cword unchanged
eval $3=$COMP_CWORD
# Are characters excluded which were former included?
if [[ $exclude ]]; then
# Yes, list of word completion separators has shrunk;
line=$COMP_LINE
# Re-assemble words to complete
for (( i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
# Is current word not word 0 (the command itself) and is word not
# empty and is word made up of just word separator characters to
# be excluded and is current word not preceded by whitespace in
# original line?
while [[ $i -gt 0 && ${COMP_WORDS[$i]} == +([$exclude]) ]]; do
# Is word separator not preceded by whitespace in original line
# and are we not going to append to word 0 (the command
# itself), then append to current word.
[[ $line != [$' \t']* ]] && (( j >= 2 )) && ((j--))
# Append word separator to current or new word
ref="$2[$j]"
eval $2[$j]=\${!ref}\${COMP_WORDS[i]}
# Indicate new cword
[[ $i == $COMP_CWORD ]] && eval $3=$j
# Remove optional whitespace + word separator from line copy
line=${line#*"${COMP_WORDS[$i]}"}
# Start new word if word separator in original line is
# followed by whitespace.
[[ $line == [$' \t']* ]] && ((j++))
# Indicate next word if available, else end *both* while and
# for loop
(( $i < ${#COMP_WORDS[@]} - 1)) && ((i++)) || break 2
done
# Append word to current word
ref="$2[$j]"
eval $2[$j]=\${!ref}\${COMP_WORDS[i]}
# Remove optional whitespace + word from line copy
line=${line#*"${COMP_WORDS[i]}"}
# Indicate new cword
[[ $i == $COMP_CWORD ]] && eval $3=$j
done
[[ $i == $COMP_CWORD ]] && eval $3=$j
else
# No, list of word completions separators hasn't changed;
eval $2=\( \"\${COMP_WORDS[@]}\" \)
fi
} # __reassemble_comp_words_by_ref()
# If the word-to-complete contains a colon (:), left-trim COMPREPLY items with
# word-to-complete.
# With a colon in COMP_WORDBREAKS, words containing
# colons are always completed as entire words if the word to complete contains
# a colon. This function fixes this, by removing the colon-containing-prefix
# from COMPREPLY items.
# The preferred solution is to remove the colon (:) from COMP_WORDBREAKS in
# your .bashrc:
#
# # Remove colon (:) from list of word completion separators
# COMP_WORDBREAKS=${COMP_WORDBREAKS//:}
#
# See also: Bash FAQ - E13) Why does filename completion misbehave if a colon
# appears in the filename? - http://tiswww.case.edu/php/chet/bash/FAQ
# @param $1 current word to complete (cur)
# @modifies global array $COMPREPLY
#
__ltrim_colon_completions()
{
if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
# Remove colon-word prefix from COMPREPLY items
local colon_word=${1%"${1##*:}"}
local i=${#COMPREPLY[*]}
while [[ $((--i)) -ge 0 ]]; do
COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
done
fi
} # __ltrim_colon_completions()
# NOTE: Using this function as a helper function is deprecated. Use
# `_known_hosts_real' instead.
_known_hosts()
{
local cur prev words cword
_init_completion -n : || return
# NOTE: Using `_known_hosts' as a helper function and passing options
# to `_known_hosts' is deprecated: Use `_known_hosts_real' instead.
local options
[[ "$1" == -a || "$2" == -a ]] && options=-a
[[ "$1" == -c || "$2" == -c ]] && options+=" -c"
_known_hosts_real $options -- "$cur"
} # _known_hosts()
# Helper function for completing _known_hosts.
# This function performs host completion based on ssh's config and known_hosts
# files, as well as hostnames reported by avahi-browse if
# COMP_KNOWN_HOSTS_WITH_AVAHI is set to a non-empty value. Also hosts from
# HOSTFILE (compgen -A hostname) are added, unless
# COMP_KNOWN_HOSTS_WITH_HOSTFILE is set to an empty value.
# Usage: _known_hosts_real [OPTIONS] CWORD
# Options: -a Use aliases
# -c Use `:' suffix
# -F configfile Use `configfile' for configuration settings
# -p PREFIX Use PREFIX
# Return: Completions, starting with CWORD, are added to COMPREPLY[]
_known_hosts_real()
{
local configfile flag prefix
local cur curd awkcur user suffix aliases i host
local -a kh khd config
local OPTIND=1
while getopts "acF:p:" flag "$@"; do
case $flag in
a) aliases='yes' ;;
c) suffix=':' ;;
F) configfile=$OPTARG ;;
p) prefix=$OPTARG ;;
esac
done
[[ $# -lt $OPTIND ]] && echo "error: $FUNCNAME: missing mandatory argument CWORD"
cur=${!OPTIND}; let "OPTIND += 1"
[[ $# -ge $OPTIND ]] && echo "error: $FUNCNAME("$@"): unprocessed arguments:"\
$(while [[ $# -ge $OPTIND ]]; do printf '%s\n' ${!OPTIND}; shift; done)
[[ $cur == *@* ]] && user=${cur%@*}@ && cur=${cur#*@}
kh=()
# ssh config files
if [[ -n $configfile ]]; then
[[ -r $configfile ]] && config+=( "$configfile" )
else
for i in /etc/ssh/ssh_config ~/.ssh/config ~/.ssh2/config; do
[[ -r $i ]] && config+=( "$i" )
done
fi
# Known hosts files from configs
if [[ ${#config[@]} -gt 0 ]]; then
local OIFS=$IFS IFS=$'\n' j
local -a tmpkh
# expand paths (if present) to global and user known hosts files
# TODO(?): try to make known hosts files with more than one consecutive
# spaces in their name work (watch out for ~ expansion
# breakage! Alioth#311595)
tmpkh=( $( awk 'sub("^[ \t]*([Gg][Ll][Oo][Bb][Aa][Ll]|[Uu][Ss][Ee][Rr])[Kk][Nn][Oo][Ww][Nn][Hh][Oo][Ss][Tt][Ss][Ff][Ii][Ll][Ee][ \t]+", "") { print $0 }' "${config[@]}" | sort -u ) )
IFS=$OIFS
for i in "${tmpkh[@]}"; do
# First deal with quoted entries...
while [[ $i =~ ^([^\"]*)\"([^\"]*)\"(.*)$ ]]; do
i=${BASH_REMATCH[1]}${BASH_REMATCH[3]}
j=${BASH_REMATCH[2]}
__expand_tilde_by_ref j # Eval/expand possible `~' or `~user'
[[ -r $j ]] && kh+=( "$j" )
done
# ...and then the rest.
for j in $i; do
__expand_tilde_by_ref j # Eval/expand possible `~' or `~user'
[[ -r $j ]] && kh+=( "$j" )
done
done
fi
if [[ -z $configfile ]]; then
# Global and user known_hosts files
for i in /etc/ssh/ssh_known_hosts /etc/ssh/ssh_known_hosts2 \
/etc/known_hosts /etc/known_hosts2 ~/.ssh/known_hosts \
~/.ssh/known_hosts2; do
[[ -r $i ]] && kh+=( "$i" )
done
for i in /etc/ssh2/knownhosts ~/.ssh2/hostkeys; do
[[ -d $i ]] && khd+=( "$i"/*pub )
done
fi
# If we have known_hosts files to use
if [[ ${#kh[@]} -gt 0 || ${#khd[@]} -gt 0 ]]; then
# Escape slashes and dots in paths for awk
awkcur=${cur//\//\\\/}
awkcur=${awkcur//\./\\\.}
curd=$awkcur
if [[ "$awkcur" == [0-9]*[.:]* ]]; then
# Digits followed by a dot or a colon - just search for that
awkcur="^$awkcur[.:]*"
elif [[ "$awkcur" == [0-9]* ]]; then
# Digits followed by no dot or colon - search for digits followed
# by a dot or a colon
awkcur="^$awkcur.*[.:]"
elif [[ -z $awkcur ]]; then
# A blank - search for a dot, a colon, or an alpha character
awkcur="[a-z.:]"
else
awkcur="^$awkcur"
fi
if [[ ${#kh[@]} -gt 0 ]]; then
# FS needs to look for a comma separated list
COMPREPLY+=( $( awk 'BEGIN {FS=","}
/^\s*[^|\#]/ {
sub("^@[^ ]+ +", ""); \
sub(" .*$", ""); \
for (i=1; i<=NF; ++i) { \
sub("^\\[", "", $i); sub("\\](:[0-9]+)?$", "", $i); \
if ($i !~ /[*?]/ && $i ~ /'"$awkcur"'/) {print $i} \
}}' "${kh[@]}" 2>/dev/null ) )
fi
if [[ ${#khd[@]} -gt 0 ]]; then
# Needs to look for files called
# .../.ssh2/key_22_<hostname>.pub
# dont fork any processes, because in a cluster environment,
# there can be hundreds of hostkeys
for i in "${khd[@]}" ; do
if [[ "$i" == *key_22_$curd*.pub && -r "$i" ]]; then
host=${i/#*key_22_/}
host=${host/%.pub/}
COMPREPLY+=( $host )
fi
done
fi
# apply suffix and prefix
for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
COMPREPLY[i]=$prefix$user${COMPREPLY[i]}$suffix
done
fi
# append any available aliases from config files
if [[ ${#config[@]} -gt 0 && -n "$aliases" ]]; then
local hosts=$( sed -ne 's/^[ \t]*[Hh][Oo][Ss][Tt]\([Nn][Aa][Mm][Ee]\)\{0,1\}['"$'\t '"']\{1,\}\([^#*?]*\)\(#.*\)\{0,1\}$/\2/p' "${config[@]}" )
COMPREPLY+=( $( compgen -P "$prefix$user" \
-S "$suffix" -W "$hosts" -- "$cur" ) )
fi
# Add hosts reported by avahi-browse, if desired and it's available.
if [[ ${COMP_KNOWN_HOSTS_WITH_AVAHI:-} ]] && \
type avahi-browse &>/dev/null; then
# The original call to avahi-browse also had "-k", to avoid lookups
# into avahi's services DB. We don't need the name of the service, and
# if it contains ";", it may mistify the result. But on Gentoo (at
# least), -k wasn't available (even if mentioned in the manpage) some
# time ago, so...
COMPREPLY+=( $( compgen -P "$prefix$user" -S "$suffix" -W \
"$( avahi-browse -cpr _workstation._tcp 2>/dev/null | \
awk -F';' '/^=/ { print $7 }' | sort -u )" -- "$cur" ) )
fi
# Add hosts reported by ruptime.
COMPREPLY+=( $( compgen -W \
"$( ruptime 2>/dev/null | awk '!/^ruptime:/ { print $1 }' )" \
-- "$cur" ) )
# Add results of normal hostname completion, unless
# `COMP_KNOWN_HOSTS_WITH_HOSTFILE' is set to an empty value.
if [[ -n ${COMP_KNOWN_HOSTS_WITH_HOSTFILE-1} ]]; then
COMPREPLY+=(
$( compgen -A hostname -P "$prefix$user" -S "$suffix" -- "$cur" ) )
fi
__ltrim_colon_completions "$prefix$user$cur"
return 0
} # _known_hosts_real()
# Get the word to complete and optional previous words.
# This is nicer than ${COMP_WORDS[$COMP_CWORD]}, since it handles cases
# where the user is completing in the middle of a word.
# (For example, if the line is "ls foobar",
# and the cursor is here --------> ^
# Also one is able to cross over possible wordbreak characters.
# Usage: _get_comp_words_by_ref [OPTIONS] [VARNAMES]
# Available VARNAMES:
# cur Return cur via $cur
# prev Return prev via $prev
# words Return words via $words
# cword Return cword via $cword
#
# Available OPTIONS:
# -n EXCLUDE Characters out of $COMP_WORDBREAKS which should NOT be
# considered word breaks. This is useful for things like scp
# where we want to return host:path and not only path, so we
# would pass the colon (:) as -n option in this case.
# -c VARNAME Return cur via $VARNAME
# -p VARNAME Return prev via $VARNAME
# -w VARNAME Return words via $VARNAME
# -i VARNAME Return cword via $VARNAME
#
# Example usage:
#
# $ _get_comp_words_by_ref -n : cur prev
#
_get_comp_words_by_ref()
{
local exclude flag i OPTIND=1
local cur cword words=()
local upargs=() upvars=() vcur vcword vprev vwords
while getopts "c:i:n:p:w:" flag "$@"; do
case $flag in
c) vcur=$OPTARG ;;
i) vcword=$OPTARG ;;
n) exclude=$OPTARG ;;
p) vprev=$OPTARG ;;
w) vwords=$OPTARG ;;
esac
done
while [[ $# -ge $OPTIND ]]; do
case ${!OPTIND} in
cur) vcur=cur ;;
prev) vprev=prev ;;
cword) vcword=cword ;;
words) vwords=words ;;
*) echo "bash: $FUNCNAME(): \`${!OPTIND}': unknown argument" \
1>&2; return 1
esac
let "OPTIND += 1"
done
__get_cword_at_cursor_by_ref "$exclude" words cword cur
[[ $vcur ]] && { upvars+=("$vcur" ); upargs+=(-v $vcur "$cur" ); }
[[ $vcword ]] && { upvars+=("$vcword"); upargs+=(-v $vcword "$cword"); }
[[ $vprev && $cword -ge 1 ]] && { upvars+=("$vprev" ); upargs+=(-v $vprev
"${words[cword - 1]}"); }
[[ $vwords ]] && { upvars+=("$vwords"); upargs+=(-a${#words[@]} $vwords
"${words[@]}"); }
(( ${#upvars[@]} )) && local "${upvars[@]}" && _upvars "${upargs[@]}"
}
# Initialize completion and deal with various general things: do file
# and variable completion where appropriate, and adjust prev, words,
# and cword as if no redirections exist so that completions do not
# need to deal with them. Before calling this function, make sure
# cur, prev, words, and cword are local, ditto split if you use -s.
#
# Options:
# -n EXCLUDE Passed to _get_comp_words_by_ref -n with redirection chars
# -e XSPEC Passed to _filedir as first arg for stderr redirections
# -o XSPEC Passed to _filedir as first arg for other output redirections
# -i XSPEC Passed to _filedir as first arg for stdin redirections
# -s Split long options with _split_longopt, implies -n =
# @return True (0) if completion needs further processing,
# False (> 0) no further processing is necessary.
#
_init_completion()
{
local exclude= flag outx errx inx OPTIND=1
while getopts "n:e:o:i:s" flag "$@"; do
case $flag in
n) exclude+=$OPTARG ;;
e) errx=$OPTARG ;;
o) outx=$OPTARG ;;
i) inx=$OPTARG ;;
s) split=false ; exclude+== ;;
esac
done
# For some reason completion functions are not invoked at all by
# bash (at least as of 4.1.7) after the command line contains an
# ampersand so we don't get a chance to deal with redirections
# containing them, but if we did, hopefully the below would also
# do the right thing with them...
COMPREPLY=()
local redir="@(?([0-9])<|?([0-9&])>?(>)|>&)"
_get_comp_words_by_ref -n "$exclude<>&" cur prev words cword
# Complete variable names.
_variables && return 1
# Complete on files if current is a redirect possibly followed by a
# filename, e.g. ">foo", or previous is a "bare" redirect, e.g. ">".
if [[ $cur == $redir* || $prev == $redir ]]; then
local xspec
case $cur in
2'>'*) xspec=$errx ;;
*'>'*) xspec=$outx ;;
*'<'*) xspec=$inx ;;
*)
case $prev in
2'>'*) xspec=$errx ;;
*'>'*) xspec=$outx ;;
*'<'*) xspec=$inx ;;
esac
;;
esac
cur="${cur##$redir}"
_filedir $xspec
return 1
fi
# Remove all redirections so completions don't have to deal with them.
local i skip
for (( i=1; i < ${#words[@]}; )); do
if [[ ${words[i]} == $redir* ]]; then
# If "bare" redirect, remove also the next word (skip=2).
[[ ${words[i]} == $redir ]] && skip=2 || skip=1
words=( "${words[@]:0:i}" "${words[@]:i+skip}" )
[[ $i -le $cword ]] && cword=$(( cword - skip ))
else
i=$(( ++i ))
fi
done
[[ $cword -le 0 ]] && return 1
prev=${words[cword-1]}
[[ ${split-} ]] && _split_longopt && split=true
return 0
}
# Try to complete -o SubOptions=
#
# Returns 0 if the completion was handled or non-zero otherwise.
_ssh_suboption_check()
{
# Get prev and cur words without splitting on =
local cureq=`_get_cword :=` preveq=`_get_pword :=`
if [[ $cureq == *=* && $preveq == -o ]]; then
_ssh_suboption $cureq
return $?
fi
return 1
}
_complete_ssh()
{
local cur prev words cword
_init_completion -n : || return
local configfile
local -a config
_ssh_suboption_check && return 0
case $prev in
-F|-i|-S)
_filedir
return 0
;;
-c)
_ssh_ciphers
return 0
;;
-m)
_ssh_macs
return 0
;;
-l)
COMPREPLY=( $( compgen -u -- "$cur" ) )
return 0
;;
-O)
COMPREPLY=( $( compgen -W 'check forward exit stop' -- "$cur" ) )
return 0
;;
-o)
_ssh_options
return 0
;;
-w)
_available_interfaces
return 0
;;
-b)
_ip_addresses
return 0
;;
-D|-e|-I|-L|-p|-R|-W)
return 0
;;
esac
if [[ "$cur" == -F* ]]; then
cur=${cur#-F}
_filedir
# Prefix completions with '-F'
COMPREPLY=( "${COMPREPLY[@]/#/-F}" )
cur=-F$cur # Restore cur
elif [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '$( _parse_usage "$1" )' -- "$cur" ) )
else
# Search COMP_WORDS for '-F configfile' or '-Fconfigfile' argument
set -- "${words[@]}"
while [[ $# -gt 0 ]]; do
if [[ $1 == -F* ]]; then
if [[ ${#1} -gt 2 ]]; then
configfile="$(dequote "${1:2}")"
else
shift
[[ $1 ]] && configfile="$(dequote "$1")"
fi
break
fi
shift
done
_known_hosts_real -a -F "$configfile" "$cur"
if [[ $cword -ne 1 ]]; then
compopt -o filenames
COMPREPLY+=( $( compgen -c -- "$cur" ) )
fi
fi
return 0
} &&
shopt -u hostcomplete && complete -F _complete_ssh ssh