97 lines
3.1 KiB
Markdown
97 lines
3.1 KiB
Markdown
## Prompt example
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This is the `shed` code for the prompt that I currently use. Note that the scripting language for `shed` is essentially identical to bash. This prompt code uses the `\!` escape sequence which lets you use the output of a function as your prompt.
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Also note that in `shed`, the `echo` builtin has a new `-p` flag which expands prompt escape sequences. This allows you to access these escape sequences in any context.
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The end result is the prompt that appears in the README:
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<img width="506" height="407" alt="shed" src="https://github.com/user-attachments/assets/5333dd47-ae1b-45cd-8729-b623f586b10e" />
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```bash
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prompt_topline() {
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local user_and_host="\e[0m\e[1m$USER\e[1;36m@\e[1;31m$HOST\e[0m"
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echo -n "\e[1;34m┏━ $user_and_host\n"
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}
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prompt_stat_line() {
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local last_exit_code="$?"
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local last_cmd_status
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local last_cmd_runtime
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if [ "$last_exit_code" -eq "0" ]; then
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last_cmd_status="\e[1;32m\e[0m"
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else
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last_cmd_status="\e[1;31m\e[0m"
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fi
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local last_runtime_raw="$(echo -p "\t")"
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if [ -z "$last_runtime_raw" ]; then
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return 0
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else
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last_cmd_runtime="\e[1;38;2;249;226;175m $(echo -p "\T")\e[0m"
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fi
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echo -n "\e[1;34m┃ $last_cmd_runtime ($last_cmd_status)\n"
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}
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prompt_git_line() {
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git rev-parse --is-inside-work-tree > /dev/null 2>&1 || return
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local gitsigns
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local status="$(git status --porcelain 2>/dev/null)"
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local branch="$(git branch --show-current 2>/dev/null)"
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[ -n "$status" ] && echo "$status" | command grep -q '^ [MADR]' && gitsigns="$gitsigns!"
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[ -n "$status" ] && echo "$status" | command grep -q '^??' && gitsigns="$gitsigns?"
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[ -n "$status" ] && echo "$status" | command grep -q '^[MADR]' && gitsigns="$gitsigns+"
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local ahead="$(git rev-list --count @{upstream}..HEAD 2>/dev/null)"
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local behind="$(git rev-list --count HEAD..@{upstream} 2>/dev/null)"
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[ $ahead -gt 0 ] && gitsigns="$gitsigns↑"
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[ $behind -gt 0 ] && gitsigns="$gitsigns↓"
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if [ -n "$gitsigns" ] || [ -n "$branch" ]; then
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if [ -n "$gitsigns" ]; then
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gitsigns="\e[1;31m[$gitsigns]"
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fi
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echo -n "\e[1;34m┃ \e[1;35m ${branch}$gitsigns\e[0m\n"
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fi
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}
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prompt_jobs_line() {
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local job_count="$(echo -p '\j')"
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if [ "$job_count" -gt 0 ]; then
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echo -n "\e[1;34m┃ \e[1;33m $job_count job(s) running\e[0m\n"
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fi
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}
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prompt_ssh_line() {
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local ssh_server="$(echo $SSH_CONNECTION | cut -f3 -d' ')"
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[ -n "$ssh_server" ] && echo -n "\e[1;34m┃ \e[1;39m🌐 $ssh_server\e[0m\n"
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}
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prompt_pwd_line() {
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echo -p "\e[1;34m┣━━ \e[1;36m\W\e[1;32m/"
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}
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prompt_dollar_line() {
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local dollar="$(echo -p "\$ ")"
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local dollar="$(echo -e "\e[1;32m$dollar\e[0m")"
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echo -n "\e[1;34m┗━ $dollar "
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}
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prompt() {
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local statline="$(prompt_stat_line)"
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local topline="$(prompt_topline)"
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local gitline="$(prompt_git_line)"
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local jobsline="$(prompt_jobs_line)"
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local sshline="$(prompt_ssh_line)"
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local pwdline="$(prompt_pwd_line)"
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local dollarline="$(prompt_dollar_line)"
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local prompt="$topline$statline$gitline$jobsline$sshline$pwdline\n$dollarline"
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echo -en "$prompt"
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}
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export PS1="\!prompt "
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```
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