mirror of
https://github.com/romkatv/powerlevel10k.git
synced 2024-12-27 17:11:57 +00:00
430 lines
13 KiB
Bash
Executable file
430 lines
13 KiB
Bash
Executable file
# vim:ft=zsh ts=2 sw=2 sts=2 et fenc=utf-8
|
|
################################################################
|
|
# Utility functions
|
|
# This file holds some utility-functions for
|
|
# the powerlevel9k-ZSH-theme
|
|
# https://github.com/bhilburn/powerlevel9k
|
|
################################################################
|
|
|
|
# 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() {
|
|
[[ ! -z "${(tP)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"
|
|
}
|
|
|
|
# Converts large memory values into a human-readable unit (e.g., bytes --> GB)
|
|
# Takes two arguments:
|
|
# * $size - The number which should be prettified
|
|
# * $base - The base of the number (default Bytes)
|
|
printSizeHumanReadable() {
|
|
typeset -F 2 size
|
|
size="$1"+0.00001
|
|
local extension
|
|
extension=('B' 'K' 'M' 'G' 'T' 'P' 'E' 'Z' 'Y')
|
|
local index=1
|
|
|
|
# if the base is not Bytes
|
|
if [[ -n $2 ]]; then
|
|
local idx
|
|
for idx in "${extension[@]}"; do
|
|
if [[ "$2" == "$idx" ]]; then
|
|
break
|
|
fi
|
|
index=$(( index + 1 ))
|
|
done
|
|
fi
|
|
|
|
while (( (size / 1024) > 0.1 )); do
|
|
size=$(( 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 $item.
|
|
function getRelevantItem() {
|
|
local -a list
|
|
local callback
|
|
# Explicitly split the elements by whitespace.
|
|
list=(${=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
|
|
}
|
|
|
|
# OS detection
|
|
case $(uname) in
|
|
Darwin)
|
|
OS='OSX'
|
|
OS_ICON=$(print_icon 'APPLE_ICON')
|
|
;;
|
|
CYGWIN_NT-* | MSYS_NT-*)
|
|
OS='Windows'
|
|
OS_ICON=$(print_icon 'WINDOWS_ICON')
|
|
;;
|
|
FreeBSD)
|
|
OS='BSD'
|
|
OS_ICON=$(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'
|
|
if [ -f /etc/os-release ]; then
|
|
[[ ${(f)"$((</etc/os-release) 2>/dev/null)"} =~ "ID=([A-Za-z]+)" ]] && os_release_id="${match[1]}"
|
|
fi
|
|
case "$os_release_id" in
|
|
*arch*)
|
|
OS_ICON=$(print_icon 'LINUX_ARCH_ICON')
|
|
;;
|
|
*debian*)
|
|
OS_ICON=$(print_icon 'LINUX_DEBIAN_ICON')
|
|
;;
|
|
*ubuntu*)
|
|
OS_ICON=$(print_icon 'LINUX_UBUNTU_ICON')
|
|
;;
|
|
*elementary*)
|
|
OS_ICON=$(print_icon 'LINUX_ELEMENTARY_ICON')
|
|
;;
|
|
*fedora*)
|
|
OS_ICON=$(print_icon 'LINUX_FEDORA_ICON')
|
|
;;
|
|
*coreos*)
|
|
OS_ICON=$(print_icon 'LINUX_COREOS_ICON')
|
|
;;
|
|
*gentoo*)
|
|
OS_ICON=$(print_icon 'LINUX_GENTOO_ICON')
|
|
;;
|
|
*mageia*)
|
|
OS_ICON=$(print_icon 'LINUX_MAGEIA_ICON')
|
|
;;
|
|
*centos*)
|
|
OS_ICON=$(print_icon 'LINUX_CENTOS_ICON')
|
|
;;
|
|
*opensuse*|*tumbleweed*)
|
|
OS_ICON=$(print_icon 'LINUX_OPENSUSE_ICON')
|
|
;;
|
|
*sabayon*)
|
|
OS_ICON=$(print_icon 'LINUX_SABAYON_ICON')
|
|
;;
|
|
*slackware*)
|
|
OS_ICON=$(print_icon 'LINUX_SLACKWARE_ICON')
|
|
;;
|
|
*linuxmint*)
|
|
OS_ICON=$(print_icon 'LINUX_MINT_ICON')
|
|
;;
|
|
*alpine*)
|
|
OS_ICON=$(print_icon 'LINUX_ALPINE_ICON')
|
|
;;
|
|
*aosc*)
|
|
OS_ICON=$(print_icon 'LINUX_AOSC_ICON')
|
|
;;
|
|
*nixos*)
|
|
OS_ICON=$(print_icon 'LINUX_NIXOS_ICON')
|
|
;;
|
|
*devuan*)
|
|
OS_ICON=$(print_icon 'LINUX_DEVUAN_ICON')
|
|
;;
|
|
*manjaro*)
|
|
OS_ICON=$(print_icon 'LINUX_MANJARO_ICON')
|
|
;;
|
|
*)
|
|
OS='Linux'
|
|
OS_ICON=$(print_icon 'LINUX_ICON')
|
|
;;
|
|
esac
|
|
|
|
# Check if we're running on Android
|
|
case $(uname -o 2>/dev/null) in
|
|
Android)
|
|
OS='Android'
|
|
OS_ICON=$(print_icon 'ANDROID_ICON')
|
|
;;
|
|
esac
|
|
;;
|
|
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
|
|
|
|
# Determine if the passed segment is used in the prompt
|
|
#
|
|
# Pass the name of the segment to this function to test for its presence in
|
|
# either the LEFT or RIGHT prompt arrays.
|
|
# * $1: The segment to be tested.
|
|
segment_in_use() {
|
|
local key=$1
|
|
if [[ -n "${POWERLEVEL9K_LEFT_PROMPT_ELEMENTS[(r)$key]}" ]] || [[ -n "${POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS[(r)$key]}" ]]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Print a deprecation warning if an old segment is in use.
|
|
# Takes the name of an associative array that contains the
|
|
# deprecated segments as keys, the values contain the new
|
|
# segment names.
|
|
print_deprecation_warning() {
|
|
typeset -AH raw_deprecated_segments
|
|
raw_deprecated_segments=(${(kvP@)1})
|
|
|
|
for key in ${(@k)raw_deprecated_segments}; do
|
|
if segment_in_use $key; then
|
|
# segment is deprecated
|
|
print -P "%F{yellow}Warning!%f The '$key' segment is deprecated. Use '%F{blue}${raw_deprecated_segments[$key]}%f' instead. For more informations, have a look at the CHANGELOG.md."
|
|
fi
|
|
done
|
|
}
|
|
|
|
# A helper function to determine if a segment should be
|
|
# joined or promoted to a full one.
|
|
# Takes three arguments:
|
|
# * $1: The array index of the current segment
|
|
# * $2: The array index of the last printed segment
|
|
# * $3: The array of segments of the left or right prompt
|
|
function segmentShouldBeJoined() {
|
|
local current_index=$1
|
|
local last_segment_index=$2
|
|
# Explicitly split the elements by whitespace.
|
|
local -a elements
|
|
elements=(${=3})
|
|
|
|
local current_segment=${elements[$current_index]}
|
|
local joined=false
|
|
if [[ ${current_segment[-7,-1]} == '_joined' ]]; then
|
|
joined=true
|
|
# promote segment to a full one, if the predecessing full segment
|
|
# was conditional. So this can only be the case for segments that
|
|
# are not our direct predecessor.
|
|
if (( $(($current_index - $last_segment_index)) > 1)); then
|
|
# Now we have to examine every previous segment, until we reach
|
|
# the last printed one (found by its index). This is relevant if
|
|
# all previous segments are joined. Then we want to join our
|
|
# segment as well.
|
|
local examined_index=$((current_index - 1))
|
|
while (( $examined_index > $last_segment_index )); do
|
|
local previous_segment=${elements[$examined_index]}
|
|
# If one of the examined segments is not joined, then we know
|
|
# that the current segment should not be joined, as the target
|
|
# segment is the wrong one.
|
|
if [[ ${previous_segment[-7,-1]} != '_joined' ]]; then
|
|
joined=false
|
|
break
|
|
fi
|
|
examined_index=$((examined_index - 1))
|
|
done
|
|
fi
|
|
fi
|
|
|
|
# Return 1 means error; return 0 means no error. So we have
|
|
# to invert $joined
|
|
if [[ "$joined" == "true" ]]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
################################################################
|
|
# Given a directory path, truncate it according to the settings.
|
|
# Parameters:
|
|
# * $1 Path: string - the directory path to be truncated
|
|
# * $2 Length: integer - length to truncate to
|
|
# * $3 Delimiter: string - the delimiter to use
|
|
# * $4 From: string - "right" | "middle". If omited, assumes right.
|
|
function truncatePath() {
|
|
# if the current path is not 1 character long (e.g. "/" or "~")
|
|
if (( ${#1} > 1 )); then
|
|
# convert $2 from string to integer
|
|
2=$(( $2 ))
|
|
# set $3 to "" if not defined
|
|
[[ -z $3 ]] && 3="" || 3=$(echo -n $3)
|
|
# set $4 to "right" if not defined
|
|
[[ -z $4 ]] && 4="right"
|
|
# create a variable for the truncated path.
|
|
local trunc_path
|
|
# if the path is in the home folder, add "~/" to the start otherwise "/"
|
|
[[ $1 == "~"* ]] && trunc_path='~/' || trunc_path='/'
|
|
# split the path into an array using "/" as the delimiter
|
|
local paths=$1
|
|
paths=(${(s:/:)${paths//"~\/"/}})
|
|
# declare locals for the directory being tested and its length
|
|
local test_dir test_dir_length
|
|
# do the needed truncation
|
|
case $4 in
|
|
right)
|
|
# include the delimiter length in the threshhold
|
|
local threshhold=$(( $2 + ${#3} ))
|
|
# loop through the paths
|
|
for (( i=1; i<${#paths}; i++ )); do
|
|
# get the current directory value
|
|
test_dir=$paths[$i]
|
|
test_dir_length=${#test_dir}
|
|
# only truncate if the resulting truncation will be shorter than
|
|
# the truncation + delimiter length and at least 3 characters
|
|
if (( $test_dir_length > $threshhold )) && (( $test_dir_length > 3 )); then
|
|
# use the first $2 characters and the delimiter
|
|
trunc_path+="${test_dir:0:$2}$3/"
|
|
else
|
|
# use the full path
|
|
trunc_path+="${test_dir}/"
|
|
fi
|
|
done
|
|
;;
|
|
middle)
|
|
# we need double the length for start and end truncation + delimiter length
|
|
local threshhold=$(( $2 * 2 ))
|
|
# create a variable for the start of the end truncation
|
|
local last_pos
|
|
# loop through the paths
|
|
for (( i=1; i<${#paths}; i++ )); do
|
|
# get the current directory value
|
|
test_dir=$paths[$i]
|
|
test_dir_length=${#test_dir}
|
|
# only truncate if the resulting truncation will be shorter than
|
|
# the truncation + delimiter length
|
|
if (( $test_dir_length > $threshhold )); then
|
|
# use the first $2 characters, the delimiter and the last $2 characters
|
|
last_pos=$(( $test_dir_length - $2 ))
|
|
trunc_path+="${test_dir:0:$2}$3${test_dir:$last_pos:$test_dir_length}/"
|
|
else
|
|
# use the full path
|
|
trunc_path+="${test_dir}/"
|
|
fi
|
|
done
|
|
;;
|
|
esac
|
|
# return the truncated path + the current directory
|
|
echo $trunc_path${1:t}
|
|
else # current path is 1 character long (e.g. "/" or "~")
|
|
echo $1
|
|
fi
|
|
}
|
|
|
|
# Given a directory path, truncate it according to the settings for
|
|
# `truncate_from_right`
|
|
function truncatePathFromRight() {
|
|
local delim_len=${#POWERLEVEL9K_SHORTEN_DELIMITER:-1}
|
|
echo $1 | sed $SED_EXTENDED_REGEX_PARAMETER \
|
|
"s@(([^/]{$((POWERLEVEL9K_SHORTEN_DIR_LENGTH))})([^/]{$delim_len}))[^/]+/@\2$POWERLEVEL9K_SHORTEN_DELIMITER/@g"
|
|
}
|
|
|
|
# Search recursively in parent folders for given file.
|
|
function upsearch () {
|
|
if [[ "$PWD" == "$HOME" || "$PWD" == "/" ]]; then
|
|
echo "$PWD"
|
|
elif test -e "$1"; then
|
|
pushd .. > /dev/null
|
|
upsearch "$1"
|
|
popd > /dev/null
|
|
echo "$PWD"
|
|
else
|
|
pushd .. > /dev/null
|
|
upsearch "$1"
|
|
popd > /dev/null
|
|
fi
|
|
}
|
|
|
|
# Parse IP address from ifconfig on OSX and from IP on Linux
|
|
# Parameters:
|
|
# $1 - string The desired Interface
|
|
# $2 - string A root prefix for testing purposes
|
|
function p9k::parseIp() {
|
|
local desiredInterface="${1}"
|
|
|
|
if [[ -z "${desiredInterface}" ]]; then
|
|
desiredInterface="^[^ ]+"
|
|
fi
|
|
|
|
local ROOT_PREFIX="${2}"
|
|
if [[ "$OS" == "OSX" ]]; then
|
|
# Get a plain list of all interfaces
|
|
local rawInterfaces="$(${ROOT_PREFIX}/sbin/ifconfig -l 2>/dev/null)"
|
|
# Parse into array (split by whitespace)
|
|
local -a interfaces
|
|
interfaces=(${=rawInterfaces})
|
|
# Parse only relevant interface names
|
|
local pattern="${desiredInterface}[^ ]?"
|
|
local -a relevantInterfaces
|
|
for rawInterface in $interfaces; do
|
|
[[ "$rawInterface" =~ $pattern ]] && relevantInterfaces+=( $MATCH )
|
|
done
|
|
local newline=$'\n'
|
|
for interfaceName in $relevantInterfaces; do
|
|
local interface="$(${ROOT_PREFIX}/sbin/ifconfig $interfaceName 2>/dev/null)"
|
|
if [[ "${interface}" =~ "lo[0-9]*" ]]; then
|
|
continue
|
|
fi
|
|
# Check if interface is UP.
|
|
if [[ "${interface//${newline}/}" =~ "<([^>]*)>(.*)inet[ ]+([^ ]*)" ]]; then
|
|
local ipFound="${match[3]}"
|
|
local -a interfaceStates=(${(s:,:)match[1]})
|
|
if [[ "${interfaceStates[(r)UP]}" == "UP" ]]; then
|
|
echo "${ipFound}"
|
|
return 0
|
|
fi
|
|
fi
|
|
done
|
|
else
|
|
local -a interfaces
|
|
interfaces=( "${(f)$(${ROOT_PREFIX}/sbin/ip -brief -4 a show 2>/dev/null)}" )
|
|
local pattern="^${desiredInterface}[ ]+UP[ ]+([^/ ]+)"
|
|
for interface in "${(@)interfaces}"; do
|
|
if [[ "$interface" =~ $pattern ]]; then
|
|
echo "${match[1]}"
|
|
return 0
|
|
fi
|
|
done
|
|
fi
|
|
|
|
return 1
|
|
}
|