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Moved utility-functions to "functions/power-utilities.zsh".

This commit is contained in:
Dominik Ritter 2015-10-19 17:37:18 +02:00
parent c10cbabb9e
commit 5addfdc9e0
2 changed files with 192 additions and 179 deletions

View file

@ -0,0 +1,190 @@
# vim:ft=zsh ts=2 sw=2 sts=2 et fenc=utf-8
################################################################
# power-functions
# This file holds some utility-functions for
# the powerlevel9k-ZSH-theme
# https://github.com/bhilburn/powerlevel9k
################################################################
################################################################
# Utility functions
################################################################
# Exits with 0 if a variable has been previously defined (even if empty)
# Takes the name of a variable that should be checked.
function defined() {
local varname="$1"
typeset -p "$varname" > /dev/null 2>&1
}
# Given the name of a variable and a default value, sets the variable
# value to the default only if it has not been defined.
#
# Typeset cannot set the value for an array, so this will only work
# for scalar values.
function set_default() {
local varname="$1"
local default_value="$2"
defined "$varname" || typeset -g "$varname"="$default_value"
}
# Safety function for printing icons
# Prints the named icon, or if that icon is undefined, the string name.
function print_icon() {
local icon_name=$1
local ICON_USER_VARIABLE=POWERLEVEL9K_${icon_name}
local USER_ICON=${(P)ICON_USER_VARIABLE}
if defined "$ICON_USER_VARIABLE"; then
echo -n "$USER_ICON"
else
echo -n "${icons[$icon_name]}"
fi
}
# Get numerical color codes. That way we translate ANSI codes
# into ZSH-Style color codes.
function getColorCode() {
# Check if given value is already numerical
if [[ "$1" = <-> ]]; then
# ANSI color codes distinguish between "foreground"
# and "background" colors. We don't need to do that,
# as ZSH uses a 256 color space anyway.
if [[ "$1" = <8-15> ]]; then
echo $(($1 - 8))
else
echo "$1"
fi
else
typeset -A codes
codes=(
'black' '000'
'red' '001'
'green' '002'
'yellow' '003'
'blue' '004'
'magenta' '005'
'cyan' '006'
'white' '007'
)
# Strip eventual "bg-" prefixes
1=${1#bg-}
# Strip eventual "fg-" prefixes
1=${1#fg-}
# Strip eventual "br" prefixes ("bright" colors)
1=${1#br}
echo $codes[$1]
fi
}
# Check if two colors are equal, even if one is specified as ANSI code.
function isSameColor() {
if [[ "$1" == "NONE" || "$2" == "NONE" ]]; then
return 1
fi
local color1=$(getColorCode "$1")
local color2=$(getColorCode "$2")
return $(( color1 != color2 ))
}
# Converts large memory values into a human-readable unit (e.g., bytes --> GB)
printSizeHumanReadable() {
local size=$1
local extension
extension=(B K M G T P E Z Y)
local index=1
# if the base is not Bytes
if [[ -n $2 ]]; then
for idx in "${extension[@]}"; do
if [[ "$2" == "$idx" ]]; then
break
fi
index=$(( index + 1 ))
done
fi
while (( (size / 1024) > 0 )); do
size=$(( size / 1024 ))
index=$(( index + 1 ))
done
echo "$size${extension[$index]}"
}
# Gets the first value out of a list of items that is not empty.
# The items are examined by a callback-function.
# Takes two arguments:
# * $list - A list of items
# * $callback - A callback function to examine if the item is
# worthy. The callback function has access to
# the inner variable $item.
function getRelevantItem() {
setopt shwordsplit # We need to split the words in $interfaces
local list callback
list=$1
callback=$2
for item in $list; do
# The first non-empty item wins
try=$(eval "$callback")
if [[ -n "$try" ]]; then
echo "$try"
break;
fi
done
}
get_icon_names() {
for key in ${(@k)icons}; do
echo "POWERLEVEL9K_$key: ${icons[$key]}"
done
}
# OS detection for the `os_icon` segment
case $(uname) in
Darwin)
OS='OSX'
OS_ICON=$(print_icon 'APPLE_ICON')
;;
FreeBSD)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
OpenBSD)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
DragonFly)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
Linux)
OS='Linux'
OS_ICON=$(print_icon 'LINUX_ICON')
;;
SunOS)
OS='Solaris'
OS_ICON=$(print_icon 'SUNOS_ICON')
;;
*)
OS=''
OS_ICON=''
;;
esac
# Determine the correct sed parameter.
#
# `sed` is unfortunately not consistent across OSes when it comes to flags.
SED_EXTENDED_REGEX_PARAMETER="-r"
if [[ "$OS" == 'OSX' ]]; then
local IS_BSD_SED="$(sed --version &>> /dev/null || echo "BSD sed")"
if [[ -n "$IS_BSD_SED" ]]; then
SED_EXTENDED_REGEX_PARAMETER="-E"
fi
fi

View file

@ -192,187 +192,10 @@ if [[ "$POWERLEVEL9K_HIDE_BRANCH_ICON" == true ]]; then
fi
################################################################
# Utility functions
# Source utility functions
################################################################
# Exits with 0 if a variable has been previously defined (even if empty)
# Takes the name of a variable that should be checked.
function defined() {
local varname="$1"
typeset -p "$varname" > /dev/null 2>&1
}
# Given the name of a variable and a default value, sets the variable
# value to the default only if it has not been defined.
#
# Typeset cannot set the value for an array, so this will only work
# for scalar values.
function set_default() {
local varname="$1"
local default_value="$2"
defined "$varname" || typeset -g "$varname"="$default_value"
}
# Safety function for printing icons
# Prints the named icon, or if that icon is undefined, the string name.
function print_icon() {
local icon_name=$1
local ICON_USER_VARIABLE=POWERLEVEL9K_${icon_name}
local USER_ICON=${(P)ICON_USER_VARIABLE}
if defined "$ICON_USER_VARIABLE"; then
echo -n "$USER_ICON"
else
echo -n "${icons[$icon_name]}"
fi
}
# Get numerical color codes. That way we translate ANSI codes
# into ZSH-Style color codes.
function getColorCode() {
# Check if given value is already numerical
if [[ "$1" = <-> ]]; then
# ANSI color codes distinguish between "foreground"
# and "background" colors. We don't need to do that,
# as ZSH uses a 256 color space anyway.
if [[ "$1" = <8-15> ]]; then
echo $(($1 - 8))
else
echo "$1"
fi
else
typeset -A codes
codes=(
'black' '000'
'red' '001'
'green' '002'
'yellow' '003'
'blue' '004'
'magenta' '005'
'cyan' '006'
'white' '007'
)
# Strip eventual "bg-" prefixes
1=${1#bg-}
# Strip eventual "fg-" prefixes
1=${1#fg-}
# Strip eventual "br" prefixes ("bright" colors)
1=${1#br}
echo $codes[$1]
fi
}
# Check if two colors are equal, even if one is specified as ANSI code.
function isSameColor() {
if [[ "$1" == "NONE" || "$2" == "NONE" ]]; then
return 1
fi
local color1=$(getColorCode "$1")
local color2=$(getColorCode "$2")
return $(( color1 != color2 ))
}
# Converts large memory values into a human-readable unit (e.g., bytes --> GB)
printSizeHumanReadable() {
local size=$1
local extension
extension=(B K M G T P E Z Y)
local index=1
# if the base is not Bytes
if [[ -n $2 ]]; then
for idx in "${extension[@]}"; do
if [[ "$2" == "$idx" ]]; then
break
fi
index=$(( index + 1 ))
done
fi
while (( (size / 1024) > 0 )); do
size=$(( size / 1024 ))
index=$(( index + 1 ))
done
echo "$size${extension[$index]}"
}
# Gets the first value out of a list of items that is not empty.
# The items are examined by a callback-function.
# Takes two arguments:
# * $list - A list of items
# * $callback - A callback function to examine if the item is
# worthy. The callback function has access to
# the inner variable $item.
function getRelevantItem() {
setopt shwordsplit # We need to split the words in $interfaces
local list callback
list=$1
callback=$2
for item in $list; do
# The first non-empty item wins
try=$(eval "$callback")
if [[ -n "$try" ]]; then
echo "$try"
break;
fi
done
}
get_icon_names() {
for key in ${(@k)icons}; do
echo "POWERLEVEL9K_$key: ${icons[$key]}"
done
}
# OS detection for the `os_icon` segment
case $(uname) in
Darwin)
OS='OSX'
OS_ICON=$(print_icon 'APPLE_ICON')
;;
FreeBSD)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
OpenBSD)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
DragonFly)
OS='BSD'
OS_ICON=$(print_icon 'FREEBSD_ICON')
;;
Linux)
OS='Linux'
OS_ICON=$(print_icon 'LINUX_ICON')
;;
SunOS)
OS='Solaris'
OS_ICON=$(print_icon 'SUNOS_ICON')
;;
*)
OS=''
OS_ICON=''
;;
esac
# Determine the correct sed parameter.
#
# `sed` is unfortunately not consistent across OSes when it comes to flags.
SED_EXTENDED_REGEX_PARAMETER="-r"
if [[ "$OS" == 'OSX' ]]; then
local IS_BSD_SED="$(sed --version &>> /dev/null || echo "BSD sed")"
if [[ -n "$IS_BSD_SED" ]]; then
SED_EXTENDED_REGEX_PARAMETER="-E"
fi
fi
source $(dirname "$0")/functions/power-utilities.zsh
################################################################
# Color Scheme