X-Git-Url: https://git.sev.monster/~sev/dotfiles.git/blobdiff_plain/7108dbef31bfb72966375914d5d3718ddf363530..024170a4eaed28d31833f95602369e9ccdf70a13:/etc/zsh/.zshenv?ds=sidebyside diff --git a/etc/zsh/.zshenv b/etc/zsh/.zshenv index 99e3372..7a923e9 100644 --- a/etc/zsh/.zshenv +++ b/etc/zsh/.zshenv @@ -51,25 +51,37 @@ function _sev_zcleanup { } function _sev_setpath { - # 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 - # NOTE: tied arrays path and fpath already exist - typeset -gU 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 + # NOTE: tied arrays path and fpath already exist, but are not unique (-U); + # we utilize the fact that unique arrays keep the first occurrence + # and remove any further occurrences to check for elements from the + # old PATH that we did not anticipate and shift them to the front, + # since they are probably important to the system + typeset -gU path fpath + local -a syspath=("$path[@]") + # NOTE: /usr/{pkg,games} are unix/bsdisms + # NOTE: some systems (esp. research machines) may have multiple versions of + # packages installed in /opt/[pkg]/[ver]/bin or other dirs, managed + # with something like Environment Modules. this code does not account + # for this type of usage and will add all valid paths. any undesired + # paths can be removed using .zshenv.local. + # NOTE: fun non-conformant systems like Android may have fun dirs that + # contain binaries intended solely for the base system, and their use + # by other users/subsystems may cause problems. for example, + # /system/bin/bc on Android may be a different version of or + # completely different codebase compared to the Termux-installed bc. + # modern Termux does not add these such systems to PATH by default, + # but older versions/configurations might. + # XXX: PREFIX not validated, non-POSIX but Termux uses it, maybe others # XXX: XDG specifies ~/.local/bin as the only user-writable dir for # executables, but we specify more; technically this is against spec - local -a syspath=("$path[@]") - path=({{${_sev_home:-~},~}{/.local,},{$PREFIX,}{,/opt,/opt/*{/*,},/usr{,/local,/pkg}}}/{s,}bin(N) + path=({{${_sev_home:-~},~}{/.local,},{$PREFIX,}{,/usr{,/local,/pkg},/opt{,/*{/*,}}}}/{s,}bin(N) {$PREFIX,}/usr/{X11R{7,6}/bin,games} # emulate Arch Linux flatpak-bindir.sh for use on other systems {${XDG_DATA_HOME:-~/.local/share},{$PREFIX,}/var/lib}/flatpak/exports/bin) local -i i len=$#path - path=("$path[@]" "$syspath[@]") - # remove bad paths + path+=("$syspath[@]") + # remove bad paths... after having combined the arrays to remove duplicates for (( i = 1; i <= $#path; i++ )) { if [[ ! -d $path[$i] ]] { path[$i]=() @@ -81,7 +93,7 @@ function _sev_setpath { # shift valid system paths to the front if there are any left ((len > 0 && len < $#path)) && path=("${(@)path[len + 1, -1]}" "${(@)path[1, len]}") # include our zsh dir in fpath. unlike above, we always prefer our paths - fpath=({${ZDOTDIR:-~/.zsh},{${_sev_home:-~},~}/.zsh}/functions/**/*(/N) "$fpath[@]") + fpath=({${ZDOTDIR:-{${_sev_home:-~},~}/.zsh},{${_sev_home:-~},~}/.zsh}/functions/**/*(/N) "$fpath[@]") # remove bad paths for (( i = 1; i <= $#fpath; i++ )) { if [[ ! -d $fpath[$i] ]] { @@ -92,6 +104,7 @@ function _sev_setpath { } # FPATH is not exported by default export FPATH + # un-unique system arrays for consistency typeset +U path fpath } @@ -103,7 +116,7 @@ export LANG=${LANG:-en_US.UTF-8} [[ -v _sev_home ]] || export _sev_home=$HOME ## fix broken term -# NOTE: we do this here instead of .zshrc since we might echo stuff +# NOTE: we do this here instead of .zshrc since we might print stuff if [[ -t 1 ]] { # only if stdout is tty [[ ! -v TERM ]] && export TERM=xterm-256color >/dev/null 2>&1 if [[ $#terminfo -eq 0 ]] { @@ -121,21 +134,23 @@ if [[ ! -v _sev_setup_path || -o login ]] { # NOTE: do not set _sev_setup_path, it is set in zprofile } -### home dir setup & exports +### home dir setup & additional exports # XXX: traditionally, zshenv should just contain exports, and not touch the -# filesystem. however, some system profile scripts that are sourced in the -# system zprofile may attempt to do things that rely on some of these -# vars. for example, `flatpak-bindir.sh` in the Arch Linux flatpak package -# references $XDG_DATA_HOME with no fallback. since we do special handling -# for these vars before we export them, we're forced to do it all here -# instead of zprofile. +# filesystem. however, our TMPDIR and XDG vars rely on mutable user paths +# that may not exist, and as such need to be set up before the rest of the +# system can use them. this is important as some environments include code +# in the global zprofile, or source scripts of other shells in the global +# zprofile, that may rely on our desired dir structure and vars pointing +# to it. for example, `flatpak-bindir.sh` in the Arch Linux flatpak +# package references $XDG_DATA_HOME with no fallback. since we do special +# handling for these vars before we export them, we're forced to do it all +# here instead of at the top of the zprofile. ## xdg local dir # NOTE: need this for tmp, so confirm it exists. -# XXX: perms are not specified for XDG dirs except runtime, but I think 760 -# makes the most sense. shouldn't break anything since no one else should -# be poking around in our dir. -[[ -e ~/.local ]] || mkdir -m760 ~/.local +# XXX: perms are not specified for XDG dirs except runtime. 760 makes the most +# sense, but we need to be a bit more permissive for zsu. +[[ -e ~/.local ]] && chmod 755 ~/.local || mkdir -pm766 ~/.local ## tmp # NOTE: specs say that POSIX tmp and XDG runtime directories should exist @@ -146,51 +161,57 @@ if [[ ! -v _sev_setup_path || -o login ]] { # though it is not expressly spec compliant. this may also cause problems # with disowned applications that still try to use the directories after # the toplevel shell has already logged out and the dirs removed, but the -# chances of that are slim. +# chances of that are slim. this also needs to be adjusted for usermode +# Xorg, as it requires $PREFIX/tmp/.X11-unix on most installs. if [[ ! -v _sev_tmp ]] { - # create personal TMPDIR under system tmp - t=${TMPDIR:-${TEMPDIR:-${TEMP:-${TMP:-${${TMPPREFIX%/zsh}:-/tmp}}}}}/.home-$LOGNAME - [[ -e $t ]] || mkdir -m700 $t 2>/dev/null _sev_tmp=~/.local/tmp - if [[ ! -d $t ]] { + # create personal TMPDIR under system tmp + # NOTE: under proot with uid remapping and shared /tmp, we can reuse old + # dir, without worrying about permission issues; intended for termux. + _t=${TMPDIR:-${TEMPDIR:-${TEMP:-${TMP:-${${TMPPREFIX%/zsh}:-/tmp}}}}}/.home-${_sev_proot_real_user:-$LOGNAME} + [[ -e $_t ]] || mkdir -m700 $_t 2>/dev/null + if [[ ! -d $_t ]] { # fallback TMPDIR to bare local directory or existing softlink [[ -o interactive ]] && - print -P "%F{orange}*** Can't create tmp dir $t, using $_sev_tmp%f" + print -P "%F{orange}*** Can't create tmp dir $_t, using $_sev_tmp%f" [[ -h $_sev_tmp && ! -d _sev_tmp ]] && unlink $_sev_tmp 2>/dev/null [[ ! -e $_sev_tmp ]] && mkdir -m700 $_sev_tmp 2>/dev/null if [[ ! -d $_sev_tmp ]] { - _sev_tmp=${$(mktemp 2>/dev/null):/tmp} + _sev_tmp=${$(mktemp 2>/dev/null):-/tmp} [[ -o interactive ]] && print -P "%F{red}!!! Can't create tmp dir, using $_sev_tmp%f" } - } elif [[ -f $_sev_tmp || ( -d $_sev_tmp && ! -h $_sev_tmp ) ]] { - # file or non-softlink directory is on our local dir + } elif [[ -e $_sev_tmp && ! -h $_sev_tmp ]] { + # non-softlink node is on our local dir [[ -o interactive ]] && - print -P "%F{orange}*** $_sev_tmp exists, can't link to tmp dir $t, ignoring it%f" - _sev_tmp=$t + print -P "%F{orange}*** $_sev_tmp exists, can't link to tmp dir $_t, ignoring it%f" + _sev_tmp=$_t } else { - # link local dir to tmp dir - if [[ -h $_sev_tmp && $_sev_tmp:P != $t:P ]] { + if [[ ! -v $_sev_tmp_keep_link && -h $_sev_tmp && $_sev_tmp:P != $_t:P ]] { [[ -o interactive ]] && print -P "%F{orange}*** $_sev_tmp links to ${_sev_tmp:P} and not ${t:P}, unlinking it%f" - # XXX: race condition for existing sessions still using this dir + # NOTE: ln -f doesn't seem to work reliably with softlink + # directories, so explicitly remove the target if it exists + # XXX: potential race condition + # TODO: handle cleanup of old dir if it doesn't match? unlink $_sev_tmp 2>/dev/null } - ln -s $t $_sev_tmp 2>/dev/null - } - if [[ -v _sev_tmp ]] { - # ensure dir is clean - _sev_zcleanup tmp - # finally create our subdir for this session - t=$_sev_tmp/.session.$$ - if ! mkdir -m700 $t 2>/dev/null; then - [[ -o interactive ]] && - print -P "%F{red}!!! Can't create session tmp subdir $t, using $_sev_tmp%f" - t=$_sev_tmp - fi - export _sev_tmp TMPDIR=$t TEMPDIR=$t TEMP=$t TMP=$t TMPPREFIX=$t/zsh + if [[ ! -e $_sev_tmp ]] { + # link local dir to tmp dir + ln -s $_t $_sev_tmp 2>/dev/null + } } - unset t + # ensure dir is clean + _sev_zcleanup tmp + # finally create our subdir for this session + _t=$_sev_tmp/.session.$$ + if ! mkdir -m700 $_t 2>/dev/null; then + [[ -o interactive ]] && + print -P "%F{red}!!! Can't create session tmp subdir $_t, using $_sev_tmp%f" + _t=$_sev_tmp + fi + export _sev_tmp TMPDIR=$_t TEMPDIR=$_t TEMP=$_t TMP=$_t TMPPREFIX=$_t/zsh + unset _t } ## xdg @@ -205,56 +226,47 @@ if [[ ! -v _sev_setup_xdg ]] { # include any of the below dirs there, but you never know what crazy shit # people will do. I rather handle them sanely with our own code than let # them override after the fact. - [[ -e $XDG_CONFIG_HOME/user-dirs.dirs ]] && + [[ -f $XDG_CONFIG_HOME/user-dirs.dirs ]] && emulate sh -c "source $XDG_CONFIG_HOME/user-dirs.dirs" typeset -UT XDG_DATA_DIRS xdg_data_dirs - if [[ -v XDG_DATA_HOME ]] { - export XDG_DATA_HOME - } elif [[ ! -e ~/.local/share ]] { - mkdir -m760 ~/.local/share - } - xdg_data_dirs=($XDG_DATA_HOME /{opt,usr/local,usr/pkg,usr}/share - ${XDG_DATA_DIRS:+${xdg_data_dirs%%/}}) + [[ -v XDG_DATA_HOME ]] && export XDG_DATA_HOME + [[ -e ${XDG_DATA_HOME:-~/.local/share} ]] || + mkdir -m760 ${XDG_DATA_HOME:-~/.local/share} + xdg_data_dirs=($XDG_DATA_HOME ${XDG_DATA_DIRS:+${xdg_data_dirs%%/}} + /{usr{,/local,/pkg},opt{,/*{/*,}}}/share(N)) + xdg_data_dirs=($xdg_data_dirs(/N)) export XDG_DATA_DIRS typeset -UT XDG_CONFIG_DIRS xdg_config_dirs - if [[ -v XDG_CONFIG_HOME ]] { - export XDG_CONFIG_HOME - } elif [[ ! -e ~/.config ]] { - mkdir -m760 ~/.config - } + [[ -v XDG_CONFIG_HOME ]] && export XDG_CONFIG_HOME + [[ -e ${XDG_CONFIG_HOME:-~/.config} ]] || + mkdir -m760 ${XDG_CONFIG_HOME:-~/.config} # I am of the belief .local should follow FHS /usr/local... - [[ -e ~/.local/etc ]] || ln -s ~/.config ~/.local/etc - xdg_config_dirs=($XDG_CONFIG_HOME - ${XDG_CONFIG_DIRS:+${xdg_config_dirs%%/}} - {/opt,/usr/local,/usr/pkg,}/etc/xdg) + [[ -e ~/.local/etc ]] || ln -s ${XDG_CONFIG_HOME:-~/.config} ~/.local/etc + xdg_config_dirs=($XDG_CONFIG_HOME ${XDG_CONFIG_DIRS:+${xdg_config_dirs%%/}} + {,/usr{,/local,/pkg},opt{,/*{/*,}}}/etc/xdg(N)) + xdg_config_dirs=($xdg_config_dirs(/N)) export XDG_CONFIG_DIRS - if [[ -v XDG_STATE_HOME ]] { - export XDG_STATE_HOME - } elif [[ ! -e ~/.local/state ]] { - mkdir -m760 ~/.local/state - } + [[ -v XDG_STATE_HOME ]] && export XDG_STATE_HOME + [[ -e ${XDG_STATE_HOME:-~/.local/state} ]] || + mkdir -m760 ${XDG_STATE_HOME:-~/.local/state} if [[ -v XDG_CACHE_HOME ]] { export XDG_CACHE_HOME } else { - if [[ -v _sev_tmp ]] { - export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache - [[ -e $XDG_CACHE_HOME ]] || mkdir -m700 $XDG_CACHE_HOME - } elif [[ ! -e ~/.cache ]] { - mkdir -m700 ~/.cache - } + export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache } + [[ -e ${XDG_CACHE_HOME:-~/.cache} ]] || + mkdir -m700 ${XDG_CACHE_HOME:-~/.cache} + # NOTE: this can be set by systemd or other pre-shell supervisor, and if + # any services were started such as pipewire, we need to use the + # existing runtime dir to preserve runtime state if [[ -v XDG_RUNTIME_DIR ]] { - # NOTE: this can be set by systemd or other pre-shell supervisor, and - # if any services were started such as pipewire, we need to use - # the existing runtime dir so that we can get any existing - # program sockets or other data export XDG_RUNTIME_DIR - } elif [[ -v TMPDIR ]] { + } else { # make runtime dir in our session-specific tmpdir export XDG_RUNTIME_DIR=$TMPDIR/.xdg.runtime # same as in tmpdir creation, ensure dir doesn't exist @@ -263,8 +275,9 @@ if [[ ! -v _sev_setup_xdg ]] { } elif [[ -e $XDG_RUNTIME_DIR ]] { rm -rf $XDG_RUNTIME_DIR 2>/dev/null } - mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null } + [[ ! -e $XDG_RUNTIME_DIR ]] && + mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null export _sev_setup_xdg= } @@ -281,10 +294,27 @@ if [[ ! -v GNUPGHOME ]] { } ## perl local lib -[[ ! -v PERL_LOCAL_LIB_ROOT && -v commands[perl] && - -d $XDG_DATA_HOME/perl5/lib/perl5 ]] && - eval $(perl -I$XDG_DATA_HOME/perl5/lib/perl5 \ - -Mlocal::lib=$XDG_DATA_HOME/perl5 2>/dev/null) +if [[ ! -v PERL_LOCAL_LIB_ROOT && -v commands[perl] ]] { + _p5=${XDG_DATA_HOME:-~/.local/share}/perl5 + [[ -d $_p5 ]] || mkdir -p $_p5 + if [[ -f $_p5/lib/perl5/local/lib.pm ]] { + eval $(perl -I$_p5/lib/perl5 -Mlocal::lib=$_p5 2>/dev/null) + } else { + # emulate local::lib if not installed + path=($_p5/bin "${path[@]}") + export \ + PERL_MB_OPT="--install_base '$_p5'" \ + PERL_MM_OPT=INSTALL_BASE=$_p5 \ + PERL5LIB=$_p5/lib/perl5 \ + PERL_LOCAL_LIB_ROOT=$_p5${PERL_LOCAL_LIB_ROOT:+:$PERL_LOCAL_LIB_ROOT} + } + unset _p5 +} +## go +if [[ -v commands[go] ]] { + [[ ! -v GOPATH ]] && export GOPATH=${XDG_DATA_HOME:-~/.local/share}/go:~/go + [[ ! -v GOBIN ]] && export GOBIN=~/.local/bin +} ### load zshenv site-specific autoload -Uz load-site-dotfile @@ -293,9 +323,9 @@ load-site-dotfile zshenv ### source .zprofile early for non-login shells that should be 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. + # 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