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mcfdn/.zshrc

Created July 3, 2025 20:13
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  1. mcfdn created this gist Jul 3, 2025.
    82 changes: 82 additions & 0 deletions .zshrc
    View file
    Original file line number Diff line number Diff line change
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    # I got sick of bloated Oh My Zsh, so I switched to powerlevel10k.
    # Now p10k is abandoned, so in an effort to reduce reliance on
    # more plugins and dependencies, here's a basic prompt with no
    # requirements (outside of the obvious git, etc).
    #
    # Looks like:
    #
    # ~/.config/zsh !130 &2
    # $ ls -la 7ms
    #
    # ...where:
    #
    # [wd] ![non-zero exit code] &[n bg jobs]
    # $ [prev. cmd time]ms
    function precmd() {
    # The previous exit code needs to be obtained before we do anything else,
    # otherwise the wrong code may be displayed.
    local prev_exit_code=$?

    # Set prompt dir. More info in `man zshmisc` under `%~`.
    local prompt_dir="%F{blue}%~%f "

    # Display background jobs if any are running. More info in `man zshmisc`
    # under `%j`.
    local prompt_bg_jobs="%(1j.%F{cyan}&%j%f .)"

    # Display the prompt character.
    local prompt_char="%F{242}$%f "

    # Display the current git branch if we're in a git repository.
    local prompt_git_branch
    if command git rev-parse --is-inside-work-tree &>/dev/null; then
    # Get the current git branch name, falling back to commit hash if HEAD
    # is detached.
    local ref=$(git symbolic-ref --short HEAD 2>/dev/null || git rev-parse --short HEAD 2>/dev/null)

    # Append an asterisk (*) if there are uncommitted changes.
    local dirty=""
    if [[ -n $ref ]]; then
    if ! git diff --quiet --ignore-submodules --cached || ! git diff --quiet --ignore-submodules; then
    dirty="%F{yellow}*%f"
    fi
    fi

    # Append a caret (^) if the local branch is ahead of the upstream
    # branch.
    # First, check if the upstream branch exists.
    local ahead=""
    if git rev-parse --abbrev-ref --symbolic-full-name @{u} &>/dev/null; then
    # Count the number of commits ahead of the upstream.
    local commits_ahead=$(git rev-list --left-right --count HEAD...@{u} 2>/dev/null | awk '{print $1}')
    if (( commits_ahead > 0 )); then
    ahead="%F{yellow}^${commits_ahead}%f"
    fi
    fi

    prompt_git_branch="%F{green}${ref}${dirty}${ahead}%f "
    fi

    # Display the exit code of the previous command if it was not 0.
    local prompt_exit_code
    if (( prev_exit_code != 0 )); then
    prompt_exit_code="%F{167}!${prev_exit_code}%f "
    fi

    # Display the time taken for the last command to execute.
    if [[ -n $__CMD_TIMER && -n $__CMD_DELTA ]]; then
    local now=$(date +%s%3N)
    __CMD_DELTA=$(($now-$__CMD_TIMER))
    unset __CMD_TIMER

    prompt_timer="%F{cyan}${__CMD_DELTA}ms%f"
    fi

    # Configure the main prompt (left).
    export PROMPT="
    ${prompt_dir}${prompt_git_branch}${prompt_exit_code}${prompt_bg_jobs}
    ${prompt_char}"

    # Configure the right prompt.
    export RPROMPT="${prompt_timer}"
    }