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scm_breeze/lib/git/shell_shortcuts.sh
2012-08-21 14:14:32 +12:00

102 lines
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# ------------------------------------------------------------------------------
# SCM Breeze - Streamline your SCM workflow.
# Copyright 2011 Nathan Broadbent (http://madebynathan.com). All Rights Reserved.
# Released under the LGPL (GNU Lesser General Public License)
# ------------------------------------------------------------------------------
# Wrap common commands with numeric argument expansion.
# Prepends everything with exec_scmb_expand_args,
# even if commands are already aliases or functions
if [ "$shell_command_wrapping_enabled" = "true" ] || [ "$bash_command_wrapping_enabled" = "true" ]; then
# Do it in a function so we don't bleed variables
function _git_wrap_commands() {
# Define 'whence' for bash, to get the value of an alias
type whence > /dev/null 2>&1 || function whence() { type "$@" | sed -e "s/.*is aliased to \`//" -e "s/'$//"; }
local cmd=''
for cmd in $scmb_wrapped_shell_commands; do
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: Wrapping $cmd..."; fi
case "$(type $cmd 2>&1)" in
# Don't do anything if command already aliased, or not found.
*'exec_scmb_expand_args'*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd is already wrapped"; fi;;
*'not found'*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd not found!"; fi;;
*'is aliased to'*|*'is an alias for'*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd is an alias"; fi
# Store original alias
local original_alias="$(whence $cmd)"
# Remove alias, so that which can return binary
unalias $cmd
# Expand original command into full path, to avoid infinite loops
local expanded_alias="$(echo $original_alias | sed "s%^$cmd%$(\which $cmd)%")"
# Command is already an alias
alias $cmd="exec_scmb_expand_args $expanded_alias";;
*'is a'*'function'*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd is a function"; fi
# Copy old function into new name
eval "$(declare -f $cmd | sed "s/^$cmd ()/__original_$cmd ()/")"
# Remove function
unset -f $cmd
# Create wrapped alias for old function
alias "$cmd"="exec_scmb_expand_args __original_$cmd";;
*'is a shell builtin'*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd is a shell builtin"; fi
# Handle shell builtin commands
alias $cmd="exec_scmb_expand_args builtin $cmd";;
*)
if [ "${scmbDebug:-}" = "true" ]; then echo "SCMB: $cmd is an executable file"; fi
# Otherwise, command is a regular script or binary,
# and the full path can be found from 'which'
alias $cmd="exec_scmb_expand_args $(\which $cmd)";;
esac
done
# Clean up
declare -f whence > /dev/null && unset -f whence
}
_git_wrap_commands
fi
# BSD ls is different to Linux (GNU) ls
_uname="$(uname)"
if [ "$_uname" = "Linux" ]; then
# Linux ls commands
_ll_command="ls -l --group-directories-first --color"
_ll_sys_command="ls --group-directories-first --color=never"
elif [ "$_uname" = "Darwin" ]; then
# OS X ls commands
_ll_command="ls -l -G"
_ll_sys_command="ls"
fi
if [ -n "$_ll_command" ]; then
# Function wrapper around 'll'
# Adds numbered shortcuts to output of ls -l, just like 'git status'
unalias ll > /dev/null 2>&1; unset -f ll > /dev/null 2>&1
function ll {
# Use ruby to inject numbers into ls output
ruby -e "$( cat <<EOF
output = %x($_ll_command)
output.lines.each_with_index do |line, i|
puts line.sub(/^(([^ ]* +){8})/, "\\\1\e[2;37m[\e[0m#{i}\e[2;37m]\e[0m" << (i < 10 ? " " : " "))
end
EOF
)"
# Set numbered file shortcut in variable
local e=1
for file in $($_ll_sys_command); do
# Use perl abs_path instead of readlink -f, since it should work on both OS X and Linux
export $git_env_char$e="$(perl -e 'use Cwd "abs_path"; print abs_path(shift)' $file)"
if [ "${scmbDebug:-}" = "true" ]; then echo "Set \$$git_env_char$e => $file"; fi
let e++
done
}
fi