.zshrc: don't override graphical mode env vars

[dotfiles.git] / etc / zsh / .zshenv

### critical exports, the rest are in zprofile
export CHARSET=${CHARSET:-UTF-8}
export LANG=${LANG:-en_US.UTF-8}
## alternative home for pulling in bin & config, used for zsu
[[ -v _sev_home ]] || export _sev_home=$HOME

## fix broken term
# NOTE: we do this here instead of .zshrc since we might echo stuff
if [[ -t 1 ]] { # only if stdout is tty
    [[ ! -v TERM ]] && export TERM=xterm-256color >/dev/null 2>&1
    if [[ $#terminfo -eq 0 ]] {
        _oldterm=$TERM
        export TERM=xterm >/dev/null 2>&1
        [[ -o interactive ]] &&
          print -P "%F{red}!!! Can't find terminfo for $_oldterm, using $TERM%f"
        unset _oldterm
    }
}

## path
# NOTE: we utilize the fact that unique arrays keep the first occurrence and
#       remove any further occurences to capture elements from the old PATH
#       that we did not anticipate and shift them to the front, since they are
#       probably important to the system
if [[ ! -v _sev_setup_path || -o login ]] {
    typeset -U path fpath
    # add as many generic paths as possible to keep the order we want
    # NOTE: /usr/{local,pkg,games} are unix/bsdisms
    # XXX: PREFIX not validated, non-posix but Termux uses it, maybe others
    # XXX: XDG specifies ~/.local/bin as the only user-writable dir for
    #      executables, but we specify more; technically this is against spec
    syspath=("$path[@]")
    path=({{${_sev_home:-~},~}{/.local,},{$PREFIX,}{,/opt,/usr{,/local,/pkg}}}/{s,}bin
          /usr/{X11R{7,6}/bin,games})
    ((len=$#path))
    path=("$path[@]" "$syspath[@]")
    # remove bad paths
    for (( i = 1; i <= $#path; i++ )) {
        if [[ ! -d $path[$i] ]] {
            path[$i]=()
            ((i <= len)) && ((len--))
            ((i--))
            continue
        }
    }
    # shift valid system paths to the front if there are any left
    ((len > 0 && len < $#path)) && path=("${(@)path[len + 1, -1]}" "${(@)path[1, len]}")
    unset syspath len i
    # include our zsh dir in fpath. unlike above, we always prefer our paths
    fpath=({${ZDOTDIR:-~/.zsh},{${_sev_home:-~},~}/.zsh}/functions/**/*(/N) "$fpath[@]")
    # FPATH is not exported by default
    export FPATH
    typeset +U path fpath
    export _sev_setup_path=
}

### load zshenv site-specific
autoload -Uz load-site-dotfile
load-site-dotfile zshenv

### source .zprofile early for non-login shells to fix issues
if [[ ! -v _sev_first_display && ( -v DISPLAY || -v WAYLAND_DISPLAY ) ]] {
    # most graphical login/session managers will spawn the user's shell as a
    # parent of all child processes for that session. however, if the parent shell
    # isn't a login shell for some reason, our .zprofile won't be run, and the
    # environment won't be configured for child processes.
    #
    # XXX: .zprofile will be sourced by every new child shell if zsh is not
    #      used to start the graphical session and the _sev_first_display var
    #      isn't exported; for example, this previously happened when using
    #      sway without a display manager in front of it to run a login shell.
    #
    #      this issue is not mitigated by .zprofile only loading what has not
    #      already been loaded if the env vars preventing the load are not set;
    #      in that case, every shell will think it is a fresh login shell.

    # update gpgagent to use graphical pinentry
    # XXX: will steal display from any other logged in graphical sessions, but
    #      I consider this to be an unlikely scenario
    _sev_refresh_gpgagent=

    export _sev_first_display=
    [[ ! -o login ]] && source ${ZDOTDIR:-~}/.zprofile
} elif [[ ${+TERMUX_VERSION} -eq 0 && ! -o login && $SHLVL -eq 1 ]] {
    ## Termux first process isn't login shell, so source early
    source ${ZDOTDIR:-~}/.zprofile
}