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ohmyzsh/lib/functions.zsh
Robby Russell 1dd9c43e12 Merge pull request #1134 from koraa/pull_req_helpers
Helpers for default variables and alias value access
2013-12-02 23:47:21 -08:00

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function zsh_stats() {
history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n20
}
function uninstall_oh_my_zsh() {
/usr/bin/env ZSH=$ZSH /bin/sh $ZSH/tools/uninstall.sh
}
function upgrade_oh_my_zsh() {
/usr/bin/env ZSH=$ZSH /bin/sh $ZSH/tools/upgrade.sh
}
function take() {
mkdir -p $1
cd $1
}
#
# Get the value of an alias.
#
# Arguments:
# 1. alias - The alias to get its value from
# STDOUT:
# The value of alias $1 (if it has one).
# Return value:
# 0 if the alias was found,
# 1 if it does not exist
#
function alias_value() {
alias "$1" | sed "s/^$1='\(.*\)'$/\1/"
test $(alias "$1")
}
#
# Try to get the value of an alias,
# otherwise return the input.
#
# Arguments:
# 1. alias - The alias to get its value from
# STDOUT:
# The value of alias $1, or $1 if there is no alias $1.
# Return value:
# Always 0
#
function try_alias_value() {
alias_value "$1" || echo "$1"
}
#
# Set variable "$1" to default value "$2" if "$1" is not yet defined.
#
# Arguments:
# 1. name - The variable to set
# 2. val - The default value
# Return value:
# 0 if the variable exists, 3 if it was set
#
function default() {
test `typeset +m "$1"` && return 0
typeset -g "$1"="$2" && return 3
}
#
# Set enviroment variable "$1" to default value "$2" if "$1" is not yet defined.
#
# Arguments:
# 1. name - The env variable to set
# 2. val - The default value
# Return value:
# 0 if the env variable exists, 3 if it was set
#
function env_default() {
env | grep -q "^$1=" && return 0
export "$1=$2" && return 3
}