3 # XXX: only call after relevant vars have been set up, defined early so that
4 # below code can utilize it after they do so
5 function _sev_zcleanup {
9 if [[ -d $_sev_gpg_forward_dir && ( -z $1 || $1 == 'gpg-forward' ) ]] {
10 # clean up forward dirs if its session is dead or we ask for it
11 find $_sev_gpg_forward_dir -mindepth 1 -maxdepth 1 -type d |
13 # NOTE: the only way we can get here is if we have not been
14 # forwarded before, if the user asks for it, or during
15 # logout. if our own pid already has a dir, it is most likely
16 # stale, the user wants it removed, or something is very
17 # broken—in all 3 of these cases the best choice is remove it.
19 if {[[ -v _sev_gpg_forward_clean || $$ == $p ]] ||
20 ! kill -0 $p 2>/dev/null} {
21 find $x -mindepth 1 -maxdepth 1 | while {read -r y} {
22 # XXX: real dirs will stop unlink, consider it a feature
25 # don't force in case something important is still there
29 # reset GNUPGHOME if we removed our own dir
30 if [[ $GNUPGHOME =~ '/.ssh_forward/\d+/*$' && ! -d $GNUPGHOME ]]
31 GNUPGHOME=${GNUPGHOME%$MATCH}
35 # NOTE: _sev_tmp is not unset so session dirs will not be recreated if
36 # called during runtime; unset _sev_tmp and re-source to fix
37 # NOTE: XDG dirs that use our tmp are not unset here, they are in zlogout
38 # after this function is called
39 if [[ -d $_sev_tmp && ( -z $1 || $1 == 'tmp' ) ]] {
40 # clean up tmp dirs if its session is dead or we ask for it
41 find $_sev_tmp -mindepth 1 -maxdepth 1 -name '.session.*' -type d |
43 # NOTE: same rationale as above
44 p=${$(basename $x)#.session.}
45 if {[[ -v _sev_tmp_clean || $$ == $p ]] ||
46 ! kill -0 $p 2>/dev/null} {
53 function _sev_setpath {
54 # add as many generic paths as possible to keep the order we want
55 # NOTE: tied arrays path and fpath already exist, but are not unique (-U);
56 # we utilize the fact that unique arrays keep the first occurrence
57 # and remove any further occurences to check for elements from the
58 # old PATH that we did not anticipate and shift them to the front,
59 # since they are probably important to the system
60 typeset -gU path fpath
61 local -a syspath=("$path[@]")
62 # NOTE: /usr/{pkg,games} are unix/bsdisms
63 # NOTE: some systems (esp. research machines) may have multiple versions of
64 # packages installed in /opt/[pkg]/[ver]/bin or other dirs, managed
65 # with something like Environment Modules. this code does not account
66 # for this type of usage and will add all valid paths. any undesired
67 # paths can be removed using .zshenv.local.
68 # XXX: PREFIX not validated, non-POSIX but Termux uses it, maybe others
69 # XXX: XDG specifies ~/.local/bin as the only user-writable dir for
70 # executables, but we specify more; technically this is against spec
71 path=({{${_sev_home:-~},~}{/.local,},{$PREFIX,}{,/usr{,/local,/pkg},/opt{,/*{/*,}}}}/{s,}bin(N)
72 {$PREFIX,}/usr/{X11R{7,6}/bin,games}
73 # emulate Arch Linux flatpak-bindir.sh for use on other systems
74 {${XDG_DATA_HOME:-~/.local/share},{$PREFIX,}/var/lib}/flatpak/exports/bin)
76 path=("$path[@]" "$syspath[@]")
78 for (( i = 1; i <= $#path; i++ )) {
79 if [[ ! -d $path[$i] ]] {
81 ((i <= len)) && ((len--))
86 # shift valid system paths to the front if there are any left
87 ((len > 0 && len < $#path)) && path=("${(@)path[len + 1, -1]}" "${(@)path[1, len]}")
88 # include our zsh dir in fpath. unlike above, we always prefer our paths
89 fpath=({${ZDOTDIR:-~/.zsh},{${_sev_home:-~},~}/.zsh}/functions/**/*(/N) "$fpath[@]")
91 for (( i = 1; i <= $#fpath; i++ )) {
92 if [[ ! -d $fpath[$i] ]] {
98 # FPATH is not exported by default
100 # un-unique system arrays for consistency
101 typeset +U path fpath
105 export CHARSET=${CHARSET:-UTF-8}
106 export LANG=${LANG:-en_US.UTF-8}
108 ## alternative home for pulling in bin & config, used for zsu
109 [[ -v _sev_home ]] || export _sev_home=$HOME
112 # NOTE: we do this here instead of .zshrc since we might print stuff
113 if [[ -t 1 ]] { # only if stdout is tty
114 [[ ! -v TERM ]] && export TERM=xterm-256color >/dev/null 2>&1
115 if [[ $#terminfo -eq 0 ]] {
117 export TERM=xterm >/dev/null 2>&1
118 [[ -o interactive ]] &&
119 print -P "%F{red}!!! Can't find terminfo for $_oldterm, using $TERM%f"
125 if [[ ! -v _sev_setup_path || -o login ]] {
127 # NOTE: do not set _sev_setup_path, it is set in zprofile
130 ### home dir setup & exports
131 # XXX: traditionally, zshenv should just contain exports, and not touch the
132 # filesystem. however, some system profile scripts that are sourced in the
133 # system zprofile may attempt to do things that rely on some of these
134 # vars. for example, `flatpak-bindir.sh` in the Arch Linux flatpak package
135 # references $XDG_DATA_HOME with no fallback. since we do special handling
136 # for these vars before we export them, we're forced to do it all here
137 # instead of zprofile.
140 # NOTE: need this for tmp, so confirm it exists.
141 # XXX: perms are not specified for XDG dirs except runtime, but I think 760
142 # makes the most sense. shouldn't break anything since no one else should
143 # be poking around in our dir.
144 [[ -e ~/.local ]] || mkdir -m760 ~/.local
147 # NOTE: specs say that POSIX tmp and XDG runtime directories should exist
148 # until the last session is logged out (POSIX can exist for longer).
149 # since we can't reliably keep track of sessions in a cross-platform
150 # manner, the current implementation should use a separate directory per
151 # toplevel session (i.e. SHLVL=1). this should placate most applications,
152 # though it is not expressly spec compliant. this may also cause problems
153 # with disowned applications that still try to use the directories after
154 # the toplevel shell has already logged out and the dirs removed, but the
155 # chances of that are slim.
156 if [[ ! -v _sev_tmp ]] {
157 _sev_tmp=~/.local/tmp
158 # create personal TMPDIR under system tmp
159 # NOTE: under proot with uid remapping, we can reuse old tmp, without
160 # worrying about permission issues; intended for proot under termux.
161 # XXX: _sev_proot_old_user only works if /tmp is shared!
162 t=${TMPDIR:-${TEMPDIR:-${TEMP:-${TMP:-${${TMPPREFIX%/zsh}:-/tmp}}}}}/.home-${_sev_proot_old_username:-$LOGNAME}
163 [[ -e $t ]] || mkdir -m700 $t 2>/dev/null
165 # fallback TMPDIR to bare local directory or existing softlink
166 [[ -o interactive ]] &&
167 print -P "%F{orange}*** Can't create tmp dir $t, using $_sev_tmp%f"
168 [[ -h $_sev_tmp && ! -d _sev_tmp ]] && unlink $_sev_tmp 2>/dev/null
169 [[ ! -e $_sev_tmp ]] && mkdir -m700 $_sev_tmp 2>/dev/null
170 if [[ ! -d $_sev_tmp ]] {
171 _sev_tmp=${$(mktemp 2>/dev/null):/tmp}
172 [[ -o interactive ]] &&
173 print -P "%F{red}!!! Can't create tmp dir, using $_sev_tmp%f"
175 } elif [[ -e $_sev_tmp && ! -h $_sev_tmp ]] {
176 # non-softlink node is on our local dir
177 [[ -o interactive ]] &&
178 print -P "%F{orange}*** $_sev_tmp exists, can't link to tmp dir $t, ignoring it%f"
181 if [[ -h $_sev_tmp ]] {
182 [[ -o interactive && $_sev_tmp:P != $t:P ]] &&
183 print -P "%F{orange}*** $_sev_tmp links to ${_sev_tmp:P} and not ${t:P}, unlinking it%f"
184 # NOTE: ln -f doesn't seem to work reliably with softlink
185 # directories, so explicitly remove the target if it exists
186 # XXX: potential race condition
187 # TODO: handle cleanup of old dir if it doesn't match?
188 unlink $_sev_tmp 2>/dev/null
190 # link local dir to tmp dir
191 ln -s $t $_sev_tmp 2>/dev/null
193 # ensure dir is clean
195 # finally create our subdir for this session
196 t=$_sev_tmp/.session.$$
197 if ! mkdir -m700 $t 2>/dev/null; then
198 [[ -o interactive ]] &&
199 print -P "%F{red}!!! Can't create session tmp subdir $t, using $_sev_tmp%f"
202 export _sev_tmp TMPDIR=$t TEMPDIR=$t TEMP=$t TMP=$t TMPPREFIX=$t/zsh
207 if [[ ! -v _sev_setup_xdg ]] {
208 ## merge with any existing dirs and remove duplicates using unique arrays
209 # NOTE: we are accepting whatever value might be set for CONFIG and DATA;
210 # if it wasn't set, we just use default and leave it unset
211 # NOTE: include and then remove CONFIG_HOME and DATA_HOME to ensure they
212 # are not present in the array if it was added before we got to it
214 # source user dirs before other vars; technically it is against spec to
215 # include any of the below dirs there, but you never know what crazy shit
216 # people will do. I rather handle them sanely with our own code than let
217 # them override after the fact.
218 [[ -f $XDG_CONFIG_HOME/user-dirs.dirs ]] &&
219 emulate sh -c "source $XDG_CONFIG_HOME/user-dirs.dirs"
221 typeset -UT XDG_DATA_DIRS xdg_data_dirs
222 [[ -v XDG_DATA_HOME ]] && export XDG_DATA_HOME
223 [[ -e ${XDG_DATA_HOME:-~/.local/share} ]] ||
224 mkdir -m760 ${XDG_DATA_HOME:-~/.local/share}
225 xdg_data_dirs=($XDG_DATA_HOME ${XDG_DATA_DIRS:+${xdg_data_dirs%%/}}
226 /{usr{,/local,/pkg},opt{,/*{/*,}}}/share(N))
227 xdg_data_dirs=($xdg_data_dirs(/N))
230 typeset -UT XDG_CONFIG_DIRS xdg_config_dirs
231 [[ -v XDG_CONFIG_HOME ]] && export XDG_CONFIG_HOME
232 [[ -e ${XDG_CONFIG_HOME:-~/.config} ]] ||
233 mkdir -m760 ${XDG_CONFIG_HOME:-~/.config}
234 # I am of the belief .local should follow FHS /usr/local...
235 [[ -e ~/.local/etc ]] || ln -s ${XDG_CONFIG_HOME:-~/.config} ~/.local/etc
236 xdg_config_dirs=($XDG_CONFIG_HOME ${XDG_CONFIG_DIRS:+${xdg_config_dirs%%/}}
237 {,/usr{,/local,/pkg},opt{,/*{/*,}}}/etc/xdg(N))
238 xdg_config_dirs=($xdg_config_dirs(/N))
239 export XDG_CONFIG_DIRS
241 [[ -v XDG_STATE_HOME ]] && export XDG_STATE_HOME
242 [[ -e ${XDG_STATE_HOME:-~/.local/state} ]] ||
243 mkdir -m760 ${XDG_STATE_HOME:-~/.local/state}
245 if [[ -v XDG_CACHE_HOME ]] {
246 export XDG_CACHE_HOME
248 export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache
250 [[ -e ${XDG_CACHE_HOME:-~/.cache} ]] ||
251 mkdir -m700 ${XDG_CACHE_HOME:-~/.cache}
253 # NOTE: this can be set by systemd or other pre-shell supervisor, and if
254 # any services were started such as pipewire, we need to use the
255 # existing runtime dir to preserve runtime state
256 if [[ -v XDG_RUNTIME_DIR ]] {
257 export XDG_RUNTIME_DIR
259 # make runtime dir in our session-specific tmpdir
260 export XDG_RUNTIME_DIR=$TMPDIR/.xdg.runtime
261 # same as in tmpdir creation, ensure dir doesn't exist
262 if [[ -h $XDG_RUNTIME_DIR ]] {
263 unlink $XDG_RUNTIME_DIR 2>/dev/null
264 } elif [[ -e $XDG_RUNTIME_DIR ]] {
265 rm -rf $XDG_RUNTIME_DIR 2>/dev/null
268 [[ ! -e $XDG_RUNTIME_DIR ]] &&
269 mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null
271 export _sev_setup_xdg=
274 ### app setup & exports
275 # NOTE: we set these up here since some scripts might need them
277 if [[ ! -v GNUPGHOME ]] {
278 export GNUPGHOME=${XDG_CONFIG_HOME:-~/.config}/gnupg
279 # move existing gnupg dir to our new home
280 if [[ -d ~/.gnupg && ! -d $GNUPGHOME ]] {
281 mv ~/.gnupg $GNUPGHOME
286 [[ ! -v PERL_LOCAL_LIB_ROOT && -v commands[perl] &&
287 -d $XDG_DATA_HOME/perl5/lib/perl5 ]] &&
288 eval $(perl -I$XDG_DATA_HOME/perl5/lib/perl5 \
289 -Mlocal::lib=$XDG_DATA_HOME/perl5 2>/dev/null)
292 if [[ -v commands[go] ]] {
293 [[ ! -v GOPATH ]] && export GOPATH=${XDG_DATA_HOME:-~/.local/share}/go:~/go
294 [[ ! -v GOBIN ]] && export GOBIN=~/.local/bin
297 ### load zshenv site-specific
298 autoload -Uz load-site-dotfile
299 load-site-dotfile zshenv
301 ### source .zprofile early for non-login shells that should be
302 if [[ ! -v _sev_first_display && ( -v DISPLAY || -v WAYLAND_DISPLAY ) ]] {
303 # most graphical login/session managers will spawn the user's shell as a
304 # parent of all child processes for that session. however, if the parent shell
305 # isn't a login shell for some reason, our .zprofile won't be run, and the
306 # environment won't be configured for child processes.
308 # XXX: .zprofile will be sourced by every new child shell if zsh is not
309 # used to start the graphical session and the _sev_first_display var
310 # isn't exported; for example, this previously happened when using
311 # sway without a display manager in front of it to run a login shell.
313 # this issue is not mitigated by .zprofile only loading what has not
314 # already been loaded if the env vars preventing the load are not set;
315 # in that case, every shell will think it is a fresh login shell.
317 # update gpgagent to use graphical pinentry
318 # XXX: will steal display from any other logged in graphical sessions, but
319 # I consider this to be an unlikely scenario
320 _sev_refresh_gpgagent=
322 export _sev_first_display=
323 [[ ! -o login ]] && source ${ZDOTDIR:-~}/.zprofile
324 } elif [[ ${+TERMUX_VERSION} -eq 0 && ! -o login && $SHLVL -eq 1 ]] {
325 # Termux first process isn't login shell, so source early
326 source ${ZDOTDIR:-~}/.zprofile