170 lines
3.8 KiB
Bash
170 lines
3.8 KiB
Bash
#!/bin/bash
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#
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# Provides short mappings for common Git commands
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#
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# Copyright (C) 2011, 2012, 2013, 2014, 2015 Mike Gerwitz
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# #
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declare -r __git_short_path="${1:-$(pwd)/shortmaps}"
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__git-short_cmdok()
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{
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local -r cmd="$1"
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test "${cmd:0:1}" != -
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}
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__git-short_docomplete()
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{
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local -r cmd="$1" fn="$2"
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# ignore problem commands
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__git-short_cmdok "$cmd" || return
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complete -o bashdefault -o default -o nospace -F"$fn" "$cmd" 1>/dev/null \
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|| complete -o default -o nospace -F"$fn" "$cmd"
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}
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__git-short_shortmap()
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{
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local -r shortcmd="$1"
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# only perform completion when within a git dir
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git rev-parse &>/dev/null || return
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# populate variables used by various git completion functions
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local cur words cword prev
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_get_comp_words_by_ref -n =: cur words cword prev
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# execute the associated completion function (column two of the shortmaps
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# file)
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"${__git_short_comp[$shortcmd]}"
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}
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__git-short_register_alias()
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{
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local -r cmd="$1"
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# ignore invalid aliases (for which we define functions to handle them
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# instead)
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__git-short_cmdok "$cmd" || return
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alias $cmd="__git-short_shortalias '$cmd'"
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}
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__git-short_shortalias()
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{
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local -r shortcmd="$1"
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shift
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if [ "$shortcmd" == --help ]; then
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__git-short_help
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return
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fi
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# if we're not within a git dir, fall back to an actual command of this
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# name
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git rev-parse &>/dev/null || {
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command "$shortcmd" "$@"
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return
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}
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local cmd="${__git_short_maps[$shortcmd]}"
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test -n "$cmd" || return
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# pipe cmd prefix indicates a verbatim command
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if [ "${cmd:0:1}" == '|' ]; then
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eval "${cmd:1}" '"$@"'
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return
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fi
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# intentionally unquoted
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$cmd "$@"
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}
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__git-short_help()
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{
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cat <<EOH
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Git Shortmaps loaded from:
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- $HOME/.git-shortmaps
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- $__git_short_path
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Defined shortmaps:
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$( __git-short_map_out | sed 's/^/ /' )
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git-shortmaps Copyright (C) 2011, 2012, 2013, 2014, 2015 Mike Gerwitz
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This program comes with ABSOLUTELY NO WARRANTY.
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This is free software, and you are welcome to redistribute it
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under certain conditions; see the GNU GPLv3+ for details at
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<https://www.gnu.org/licenses/>.
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EOH
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}
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__git-short_map_out()
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{
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local shortcmd
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for shortcmd in "${!__git_short_maps[@]}"; do
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echo -e "$shortcmd\t${__git_short_maps[$shortcmd]}"
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done \
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| sort \
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| { type column &>/dev/null && column -t -s$'\t' || cat; }
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}
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# load shortmaps from cwd (or provided path) and home dir (if available)
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__git-short_load_maps()
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{
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local -r path="$1"
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cat "$path" ~/.git-shortmaps 2>/dev/null
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}
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# functions that cannot be aliased
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- () { __git-short_shortalias - "$@"; }
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-- () { __git-short_shortalias -- "$@"; }
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declare shortcmd comp cmd
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declare -gA __git_short_maps __git_short_comp
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# register each shortmap
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while read shortcmd comp cmd; do
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test -n "$shortcmd" || continue
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if [ "${cmd:0:1}" == : ]; then
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cmd="git ${cmd:1}"
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fi
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__git_short_maps["$shortcmd"]="$cmd"
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__git_short_comp["$shortcmd"]="$comp"
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__git-short_docomplete "$shortcmd" __git-short_shortmap
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__git-short_register_alias "$shortcmd"
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done < <( __git-short_load_maps "$__git_short_path" )
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# some distros use completion lazy-loading
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type -t _completion_loader &>/dev/null \
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&& _completion_loader git
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