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Added truncatePath to utilities.zsh

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Added `function truncatePath()` to utilities.zsh to take care of
truncation. This is pure zsh code, without calls to `sed`. Parameters
are:
   * $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.

Cleaned up code to use the new function instead.
This commit is contained in:
Christo Kotze 2018-02-19 22:00:15 +04:00
parent 58342612eb
commit 21b7749075
2 changed files with 109 additions and 61 deletions
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75
functions/utilities.zsh
View file

@ -213,6 +213,81 @@ function segmentShouldBeJoined() {
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 $3 ]] && local 3="" || 3=$(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, don't add a "/" to the start
[[ $1 != "~"* ]] && trunc_path='/' || trunc_path=''
# split the path into an array using "/" as the delimiter and remove "~/"
local paths=(${(s:/:)1})
# 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 + ${#3} ))
# create a variable for the start of the end truncation
local last_pos
# loop through the paths
for (( i=1; i<${#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 + ${#3} )); 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() {

61
powerlevel9k.zsh-theme
View file

@ -716,12 +716,12 @@ prompt_command_execution_time() {
################################################################
# Dir: current working directory
set_default POWERLEVEL9K_DIR_PATH_SEPARATOR "/"
set_default POWERLEVEL9K_HOME_FOLDER_ABBREVIATION "~"
set_default POWERLEVEL9K_DIR_PATH_HIGHLIGHT_BOLD false
# Parameters:
# * $1 Alignment: string - left|right
# * $2 Index: integer
set_default POWERLEVEL9K_DIR_PATH_SEPARATOR "/"
set_default POWERLEVEL9K_HOME_FOLDER_ABBREVIATION "~"
set_default POWERLEVEL9K_DIR_PATH_HIGHLIGHT_BOLD false
prompt_dir() {
local current_path="$(print -P '%~')"
local paths directory test_dir test_dir_length trunc_path threshhold
@ -732,40 +732,13 @@ prompt_dir() {
case "$POWERLEVEL9K_SHORTEN_STRATEGY" in
truncate_middle)
[[ $current_path != "~"* ]] && trunc_path='/' || trunc_path=''
if (( ${#paths} > 0 )); then # root is an exception and won't have paths
local max_length=$(( $POWERLEVEL9K_SHORTEN_DIR_LENGTH * 2 )) # has to be double the length for beginning / end count
local last_pos
for (( i=1; i<${#paths}; i++ )); do
test_dir=$paths[$i]
test_dir_length=${#test_dir}
if (( $test_dir_length > $max_length )); then # only shorten if long enough
last_pos=$(( $dir_length - $POWERLEVEL9K_SHORTEN_DIR_LENGTH ))
trunc_path+="${test_dir:0:$POWERLEVEL9K_SHORTEN_DIR_LENGTH}$delim${test_dir:$last_pos:$test_dir_length}/"
else
trunc_path+="${test_dir}/"
fi
done
current_path=$trunc_path${current_path:t}
fi
current_path=$(truncatePath $current_path $POWERLEVEL9K_SHORTEN_DIR_LENGTH $POWERLEVEL9K_SHORTEN_DELIMITER "middle")
;;
truncate_from_right)
[[ $current_path != "~"* ]] && trunc_path='/' || trunc_path=''
if (( ${#paths} > 0 )); then # root is an exception and won't have paths
for (( i=1; i<${#paths}; i++ )); do
test_dir="$paths[$i]"
test_dir_length=${#test_dir}
threshhold=$(( $POWERLEVEL9K_SHORTEN_DIR_LENGTH + ${#delim} ))
if (( $test_dir_length > $threshhold && $test_dir_length > 3 )); then # only shorten if long enough
trunc_path+="${test_dir:0:$POWERLEVEL9K_SHORTEN_DIR_LENGTH}$delim/"
else
trunc_path+="${test_dir}/"
fi
done
current_path=$trunc_path${current_path:t}
fi
current_path=$(truncatePath "$current_path" $POWERLEVEL9K_SHORTEN_DIR_LENGTH $POWERLEVEL9K_SHORTEN_DELIMITER)
;;
truncate_with_folder_marker)
if (( ${#paths} > 0 )); then # root is an exception and won't have paths
local last_marked_folder marked_folder
set_default POWERLEVEL9K_SHORTEN_FOLDER_MARKER ".shorten_folder_marker"
@ -775,21 +748,22 @@ prompt_dir() {
for marked_folder in $(upsearch $POWERLEVEL9K_SHORTEN_FOLDER_MARKER); do
if [[ "$marked_folder" == "/" ]]; then
# If we reached root folder, stop upsearch.
current_path="/"
trunc_path="/"
elif [[ "$marked_folder" == "$HOME" ]]; then
# If we reached home folder, stop upsearch.
current_path="~"
trunc_path="~"
elif [[ "${marked_folder%/*}" == $last_marked_folder ]]; then
current_path="${current_path%/}/${marked_folder##*/}"
trunc_path="${trunc_path%/}/${marked_folder##*/}"
else
current_path="${current_path%/}/$POWERLEVEL9K_SHORTEN_DELIMITER/${marked_folder##*/}"
trunc_path="${trunc_path%/}/$POWERLEVEL9K_SHORTEN_DELIMITER/${marked_folder##*/}"
fi
last_marked_folder=$marked_folder
done
# Replace the shortest possible match of the marked folder from
# the current path.
current_path=$current_path${current_path#${last_marked_folder}*}
current_path=$trunc_path${current_path#${last_marked_folder}*}
fi
;;
truncate_with_package_name)
local name repo_path package_path current_dir zero
@ -801,11 +775,11 @@ prompt_dir() {
# Remove trailing slash from git path, so that we can
# remove that git path from the pwd.
gitPath=${gitPath%/}
package_path=${current_path%%$gitPath}
package_path=${$(pwd)%%$gitPath}
# Remove trailing slash
package_path=${package_dir%/}
package_path=${package_path%/}
elif [[ $(git rev-parse --is-inside-git-dir 2> /dev/null) == "true" ]]; then
package_path=${current_path%%/.git*}
package_path=${$(pwd)%%/.git*}
fi
# Replace the shortest possible match of the marked folder from
@ -814,10 +788,11 @@ prompt_dir() {
# in the path (this is done by the "zero" pattern; see
# http://stackoverflow.com/a/40855342/5586433).
local zero='%([BSUbfksu]|([FB]|){*})'
trunc_path=$(pwd)
# Then, find the length of the package_path string, and save the
# subdirectory path as a substring of the current directory's path from 0
# to the length of the package path's string
subdirectory_path=$(truncatePathFromRight "${current_path:${#${(S%%)package_path//$~zero/}}}")
subdirectory_path=$(truncatePath "${trunc_path:${#${(S%%)package_path//$~zero/}}}" $POWERLEVEL9K_SHORTEN_DIR_LENGTH $POWERLEVEL9K_SHORTEN_DELIMITER)
# Parse the 'name' from the package.json; if there are any problems, just
# print the file path
defined POWERLEVEL9K_DIR_PACKAGE_FILES || POWERLEVEL9K_DIR_PACKAGE_FILES=(package.json composer.json)
@ -838,8 +813,6 @@ prompt_dir() {
# Instead of printing out the full path, print out the name of the package
# from the package.json and append the current subdirectory
current_path="`echo $packageName | tr -d '"'`$subdirectory_path"
else
current_path=$(truncatePathFromRight ${current_path//$HOME/"~"} )
fi
;;
truncate_to_unique)