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63 lines
1.5 KiB
Bash
63 lines
1.5 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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# git prompt info
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source $DOTFILES_BASH_DIR/git_prompt_info
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GIT_PS1_SHOWDIRTYSTATE=1
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GIT_PS1_SHOWSTASHSTATE=1
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GIT_PS1_SHOWUNTRACKEDFILES=1
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#GIT_PS1_DESCRIBE_STYLE=""
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# dynamic prompt
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__set_prompt() {
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source "$DOTFILES_BASH_DIR/ansi_colors"
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__git_ps1_vars
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if [[ -n "${GIT_PS1_STATUS-}" ]]; then
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PS1="${B}[${UC}\u@\h ${Y}${GIT_PS1_NAME}${UC}›${B}${GIT_PS1_BRANCH}${UC}›${G}${GIT_PS1_PREFIX}${B}]${UC}\\$ ${NONE}"
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else
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PS1="${B}[${UC}\u@\h ${G}$(__tpwd)${B}]${UC}\\$ ${NONE}"
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fi
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}
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PROMPT_COMMAND="${PROMPT_COMMAND} __set_prompt;"
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# vim: ft=sh
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