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ohmyzsh/plugins/git-escape-magic/git-escape-magic
2019-08-19 17:57:19 +02:00

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# -*- mode: sh -*-
#
# git-escape-magic - zle tweak for git command line arguments
#
# Copyright (c) 2011, 2012, 2014 Akinori MUSHA
# Licensed under the 2-clause BSD license.
#
# This tweak eliminates the need for manually escaping shell
# meta-characters such as [~^{}] that are used for specifying a git
# object (commit or tree). Every time you type one of these
# characters on a git command line, it is automatically escaped with a
# backslash as necessary and as appropriate.
#
# If you want to use this with url-quote-magic, make sure to enable it
# first.
#
# Usage:
# autoload -Uz git-escape-magic
# git-escape-magic
#
git-escape-magic.self-insert() {
emulate -L zsh
setopt extendedglob
local self_insert_function
zstyle -s ':git-escape-magic' self-insert-function self_insert_function
if [[ "$KEYS" == [{}~^]* ]] && {
local qkey="${(q)KEYS}"
[[ "$KEYS" != "$qkey" ]]
} && {
local lbuf="$LBUFFER$qkey"
[[ "${(Q)LBUFFER}$KEYS" == "${(Q)lbuf}" ]]
} && {
local -a words
words=("${(@Q)${(z)lbuf}}")
[[ "$words[(i)(*/|)git(|-[^/]##)]" -le $#words ]]
}
then
local i
i="$words[(I)([;(){\&]|\&[\&\!]|\|\||[=<>]\(*)]"
if [[ $i -gt 0 ]]; then
shift $((i-1)) words
if [[ "$words[1]" == [\=\<\>]\(* ]]; then
words[1]="${words[1]#[=<>]\(}"
else
[[ "$words[1]" == \; && $words[2] == (then|else|elif|do) ]] && shift words
shift words
fi
fi
while [[ "$words[1]" == (if|while|until|\!) ]]; do
shift words
done
while [[ "$words[1]" == [A-Za-z_][A-Za-z0-9_]#=* ]]; do
shift words
done
[[ "$words[1]" == (*/|)git(|-[^/]##) ]] && {
local subcommand
subcommand="${words[1]##*/git-}"
if [[ -z "$subcommand" ]]; then
shift words
subcommand="$words[1]"
fi
[[ $#words -ge 2 ]]
} &&
case "$subcommand" in
# commands that may take pathspec but never take refspec with [{}~^]
(add|rm|am|apply|check-attr|checkout-index|clean|clone|config|diff-files|hash-object|help|index-pack|mailinfo|mailsplit|merge-file|merge-index|mergetool|mktag|mv|pack-objects|pack-redundant|relink|send-email|show-index|show-ref|stage|status|verify-pack)
false ;;
# commands that may take pathspec but rarely take refspec with [{}~^]
(for-each-ref|grep|ls-files|update-index)
false ;;
(archive|ls-tree)
! [[ $#words -ge 3 &&
"$words[-2]" == [^-]* ]] ;;
(diff-tree)
! [[ $#words -ge 4 &&
"$words[-2]" == [^-]* &&
"$words[-3]" == [^-]* ]] ;;
(*)
[[ $words[(i)--] -gt $#words ]] ;;
esac &&
case "${words[-1]%%"$KEYS"}" in
(*[@^])
[[ "$KEYS" == [{~^]* ]] ;;
(*[@^]\{[^}]##)
[[ "$KEYS" == \}* ]] ;;
(?*)
[[ "$KEYS" == [~^]* ]] ;;
(*)
false ;;
esac &&
LBUFFER="$LBUFFER\\"
fi
zle "$self_insert_function"
}
git-escape-magic.on() {
emulate -L zsh
local self_insert_function="${$(zle -lL | awk \
'$1=="zle"&&$2=="-N"&&$3=="self-insert"{print $4;exit}'):-.self-insert}"
[[ "$self_insert_function" == git-escape-magic.self-insert ]] &&
return 0
# For url-quote-magic which does not zle -N itself
zle -la "$self_insert_function" || zle -N "$self_insert_function"
zstyle ':git-escape-magic' self-insert-function "$self_insert_function"
zle -A git-escape-magic.self-insert self-insert
return 0
}
git-escape-magic.off() {
emulate -L zsh
local self_insert_function
zstyle -s ':git-escape-magic' self-insert-function self_insert_function
[[ -n "$self_insert_function" ]] &&
zle -A "$self_insert_function" self-insert
return 0
}
zle -N git-escape-magic.self-insert
zle -N git-escape-magic.on
zle -N git-escape-magic.off
git-escape-magic() {
git-escape-magic.on
}
[[ -o kshautoload ]] || git-escape-magic "$@"