mirror of
https://github.com/lloeki/dotfiles.git
synced 2025-12-06 15:34:40 +01:00
127 lines
3.5 KiB
Bash
127 lines
3.5 KiB
Bash
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# truncates a string on the left
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# $1: string to truncate
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# $2: maximum length
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# $3: truncation string replacement (optional)
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# $4: separator symbol (optional, prevents truncation of rightmost item)
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__truncate_left() {
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local str="$1"
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local maxlen="$2"
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local trunc_symbol="$3"
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local sep_symbol="$4"
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# get minimum length to not truncate a long name
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if [ -n "$sep_symbol" ]
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then
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local component=${1##*$sep_symbol}
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maxlen=$(( ( maxlen < ${#component} ) ? ${#component} : maxlen ))
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fi
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# truncation point
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local offset=$(( ${#str} - maxlen ))
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if [ ${offset} -gt "0" ]
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then
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#truncation is needed
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str=${str:$offset:$maxlen} #truncate
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str=${trunc_symbol}/${str#*/} #add symbol
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fi
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echo "$str"
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}
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# truncates a path
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__truncate_path() {
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#gain some place with '~'
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local path=${1/#$HOME/\~}
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__truncate_left "$path" 25 '…' '/'
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}
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# truncates CWD
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__tpwd() {
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__truncate_path "$PWD"
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}
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# clears a line that was not terminated by a LF
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# fixing the dangling prompt issue
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# marks it with a reverse %, like zsh
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clear_incomplete_line() {
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# ask for cursor position
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echo -en "\033[6n"
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# read answer
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IFS=';' read -r -d R -a pos
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# extract tput-compatible answer
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local row=$((${pos[0]:2} - 1))
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local col=$((${pos[1]} - 1))
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# move back over terminal answer echo, which will hopefully be overwritten
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tput cup $row $col
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# not on first column? clean up! (overwrites answer)
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# we print a terminal width worth of columns, but since
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# it goes too far, we backtrack with CR
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[[ $col != 0 ]] && printf "\e[7m%%\e[m%*s\r" $((COLUMNS-1))
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# else e.g prompt will overwrite answer echo
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}
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# git prompt info
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source $DOTFILES_SHELL_DIR/git_prompt_info
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GIT_PS1_SHOWDIRTYSTATE=1
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GIT_PS1_SHOWSTASHSTATE=1
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GIT_PS1_SHOWUNTRACKEDFILES=1
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# dynamic prompt
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set_prompt() {
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# save last command exit code (requires set_prompt to be first in PROMPT_COMMAND)
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local last_exit_code="$?"
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# load color vars
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source "$DOTFILES_BASH_DIR/ansi_colors"
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# set up git status env vars
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__git_ps1_vars
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# build prompt
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PS1=""
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# opening + user@host
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PS1+="${B}[${UC}\u@\h"
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# git?
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if [[ -n "${GIT_PS1_NAME-}" ]]; then
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# basic info
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PS1+=" ${Y}${GIT_PS1_NAME}"
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[[ "$GIT_PS1_STATUS" == *b* ]] && PS1+="${NONE}›"
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PS1+="${NONE}›${B}${GIT_PS1_BRANCH}"
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[[ "$GIT_PS1_STATUS" == *g* ]] && PS1+="${NONE}›"
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PS1+="${NONE}›${G}${GIT_PS1_PREFIX}"
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# status symbols
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local status=""
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[[ "$GIT_PS1_STATUS" == *h* ]] && status+="${NONE}↰"
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[[ "$GIT_PS1_STATUS" == *t* ]] && status+="${R}!"
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[[ "$GIT_PS1_STATUS" == *u* ]] && status+="${Y}≠"
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[[ "$GIT_PS1_STATUS" == *s* ]] && status+="${R}±"
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[[ "$GIT_PS1_STATUS" == *n* ]] && status+="${BB}∅"
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[[ -n "$status" ]] && PS1+=" ${status}"
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# action info
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local action=""
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[[ "$GIT_PS1_STATUS" == *R* ]] && action+=" rebase"
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[[ "$GIT_PS1_STATUS" == *i* ]] && action+="-i"
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[[ "$GIT_PS1_STATUS" == *A* ]] && action+=" apply"
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[[ "$GIT_PS1_STATUS" == *M* ]] && action+=" merge"
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[[ "$GIT_PS1_STATUS" == *B* ]] && action+=" bisect"
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[[ -n "$action" ]] && PS1+="${R}${action}"
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else
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# no git => just a smartly truncated path
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PS1+=" ${G}$(__tpwd)"
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fi
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# exit code
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[[ $last_exit_code -ne 0 ]] && PS1+=" ${BW}${last_exit_code}"
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# closing prompt
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PS1+="${B}]"
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PS1+="${UC}\\$ ${NONE}"
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}
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# vim: ft=sh
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