Eryn Wells
66438f666c
Move my prompt configuration to a prompt theme function in my $fpath. I call it 'loquacious'. The prompt is configured by the prompt_loquacious_setup function. This change also necessitated a new function called prompt_colorize to generate a string with the correct set of color escapes for the prompt.
136 lines
2.7 KiB
Bash
136 lines
2.7 KiB
Bash
#!/usr/bin/zsh
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# A wordy prompt theme.
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# Eryn Wells <eryn@erynwells.me>
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autoload -U prompt_colorize
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#
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# PROMPT MODULE SCAFFOLDING
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#
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function prompt_loquacious_help
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{
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cat <<EOF
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This prompt takes up two lines. At its most verbose, it looks like this:
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<user> at <host> in <cwd> on <gitbranch>
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%
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By default, <host> is only shown when the SSH_CONNECTION variable is set; in
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other words, when this shell session was opened via an SSH connection. The
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prompt will also show the current git branch (<gitbranch>) if the current
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directory is in a git repository.
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EOF
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}
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function prompt_loquacious_setup
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{
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typeset -ga precmd_functions
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typeset -ga preexec_functions
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# preexec_newline is here so there are blank lines on either end of the
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# command output
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precmd_functions=(preexec_newline \
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precmd_xterm_title \
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precmd_prompt \
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precmd_info \
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precmd_git_branch \
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precmd_flags_rprompt \
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precmd_assemble_prompt)
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preexec_functions=(preexec_newline)
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prompt_opts=(cr subst percent)
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}
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function prompt_loquacious_preview
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{
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# TODO: Implement prompt preview.
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}
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#
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# PRECMD FUNCTIONS
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#
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function precmd_xterm_title
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{
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# Set xterm and screen titles
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[[ -n "$DISPLAY" ]] && print -Pn "\e]2;%n@%m\a"
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}
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function precmd_assemble_prompt
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{
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local p="$PS1_NAME "
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[[ -n "$SSH_CONNECTION" ]] && p+="at $PS1_HOST "
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p+="in $PS1_CWD"
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if [[ -n "$PS1_REPO" ]]; then
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p+=" on $PS1_REPO"
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fi
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PS1="$p
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$PS1_LINE"
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}
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function precmd_flags_rprompt
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{
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# background jobs
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RPS1="%(1j.[`prompt_colorize -b -f 'magenta' '%j'`].)"
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# exit status
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RPS1+="%(0?..[`prompt_colorize -b -f 'red' '%?'`])"
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}
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function precmd_info
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{
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PS1_NAME=`prompt_colorize -b -f 'magenta' '%n'`
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PS1_HOST=`prompt_colorize -b -f 'red' '%m'`
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PS1_CWD=`prompt_colorize -b -f 'green' '%~'`
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}
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function precmd_prompt
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{
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PS1_LINE="%(!.`prompt_colorize -b -f 'red' '%#'`.%#) "
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}
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function precmd_git_branch
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{
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local git_branch_output
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git_branch_output=`git branch 2>/dev/null`
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if [[ $? -eq 0 ]]; then
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export gitbranch=`echo $git_branch_output | grep '^\*' | cut -d' ' -f2`
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PS1_REPO=`prompt_colorize -b -f 'cyan' $gitbranch`
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else
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PS1_REPO=''
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fi
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}
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#
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# PREEXEC FUNCTIONS
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#
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# First prompt flag. See precmd_newline.
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is_first_prompt=1
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function preexec_newline
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{
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# Don't print newlines the first time the prompt is displayed.
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if [[ -n $is_first_prompt ]]; then
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unset is_first_prompt
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[[ -z $SSH_CONNECTION ]] && return
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fi
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echo
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}
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# Finally, run setup to get everything going
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prompt_loquacious_setup "$@"
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