migrate

dotfiles/dot_oh-my-zsh/custom/themes/powerlevel10k/internal/configure.zsh

@@ -0,0 +1,84 @@
+# Fewer than 47 columns will probably work. Haven't tried it.
+typeset -gr __p9k_wizard_columns=47
+# The bottleneck is ask_tails with nerd fonts. Everything else works fine with 12 lines.
+typeset -gr __p9k_wizard_lines=14
+typeset -gr __p9k_zd=${ZDOTDIR:-$HOME}
+typeset -gr __p9k_zd_u=${${${(q)__p9k_zd}/#(#b)${(q)HOME}(|\/*)/'~'$match[1]}//\%/%%}
+typeset -gr __p9k_zshrc=${${:-$__p9k_zd/.zshrc}:A}
+typeset -gr __p9k_zshrc_u=$__p9k_zd_u/.zshrc
+typeset -gr __p9k_root_dir_u=${${${(q)__p9k_root_dir}/#(#b)${(q)HOME}(|\/*)/'~'$match[1]}//\%/%%}
+
+function _p9k_can_configure() {
+  [[ $1 == '-q' ]] && local -i q=1 || local -i q=0
+  function $0_error() {
+    (( q )) || print -rP "%1F[ERROR]%f %Bp10k configure%b: $1" >&2
+  }
+  typeset -g __p9k_cfg_path_o=${POWERLEVEL9K_CONFIG_FILE:=${ZDOTDIR:-~}/.p10k.zsh}
+  typeset -g __p9k_cfg_basename=${__p9k_cfg_path_o:t}
+  typeset -g __p9k_cfg_path=${__p9k_cfg_path_o:A}
+  typeset -g __p9k_cfg_path_u=${${${(q)__p9k_cfg_path_o}/#(#b)${(q)HOME}(|\/*)/'~'$match[1]}//\%/%%}
+  {
+    [[ -e $__p9k_zd ]]         || { $0_error "$__p9k_zd_u does not exist";       return 1 }
+    [[ -d $__p9k_zd ]]         || { $0_error "$__p9k_zd_u is not a directory";   return 1 }
+    [[ ! -d $__p9k_cfg_path ]] || { $0_error "$__p9k_cfg_path_u is a directory"; return 1 }
+    [[ ! -d $__p9k_zshrc ]]    || { $0_error "$__p9k_zshrc_u is a directory";    return 1 }
+
+    local dir=${__p9k_cfg_path:h}
+    while [[ ! -e $dir && $dir != ${dir:h} ]]; do dir=${dir:h}; done
+    if [[ ! -d $dir ]]; then
+      $0_error "cannot create $__p9k_cfg_path_u because ${dir//\%/%%} is not a directory"
+      return 1
+    fi
+    if [[ ! -w $dir ]]; then
+      $0_error "cannot create $__p9k_cfg_path_u because ${dir//\%/%%} is readonly"
+      return 1
+    fi
+
+    [[ ! -e $__p9k_cfg_path || -f $__p9k_cfg_path || -h $__p9k_cfg_path ]] || {
+      $0_error "$__p9k_cfg_path_u is a special file"
+      return 1
+    }
+    [[ ! -e $__p9k_zshrc || -f $__p9k_zshrc || -h $__p9k_zshrc ]]          || {
+      $0_error "$__p9k_zshrc_u a special file"
+      return 1
+    }
+    [[ ! -e $__p9k_zshrc || -r $__p9k_zshrc ]]                             || {
+      $0_error "$__p9k_zshrc_u is not readable"
+      return 1
+    }
+    local style
+    for style in lean lean-8colors classic rainbow pure; do
+      [[ -r $__p9k_root_dir/config/p10k-$style.zsh ]]                      || {
+        $0_error "$__p9k_root_dir_u/config/p10k-$style.zsh is not readable"
+        return 1
+      }
+    done
+
+    (( LINES >= __p9k_wizard_lines && COLUMNS >= __p9k_wizard_columns ))   || {
+      $0_error "terminal size too small; must be at least $__p9k_wizard_columns columns by $__p9k_wizard_lines lines"
+      return 1
+    }
+    [[ -t 0 && -t 1 ]]                                                     || {
+      $0_error "no TTY"
+      return 2
+    }
+    return 0
+  } always {
+    unfunction $0_error
+  }
+}
+
+function p9k_configure() {
+  eval "$__p9k_intro"
+  _p9k_can_configure || return
+  (
+    set -- -f
+    builtin source $__p9k_root_dir/internal/wizard.zsh
+  )
+  local ret=$?
+  case $ret in
+    0)  builtin source $__p9k_cfg_path; _p9k__force_must_init=1;;
+    69) return 0;;
+    *)  return $ret;;
+  esac
+}

dotfiles/dot_oh-my-zsh/custom/themes/powerlevel10k/internal/notes.md

@@ -0,0 +1,197 @@
+battery: use the same technique as in vpn_ip to avoid reset=2.
+
+---
+
+implement fake gitstatus api on top of vcs_info (or plain git?) + worker and use it if there is no
+gitstatus.
+
+---
+
+- call vcs_info on worker. the tricky question is what to display while "loading".
+
+---
+
+- add _SHOW_SYSTEM to all *env segments.
+
+---
+
+- support states in SHOW_ON_COMMAND: POWERLEVEL9K_SEGMENT_STATE_SHOW_ON_COMMAND='...'
+
+---
+
+add POWERLEVEL9K_${SEGMENT}_${STATE}_SHOW_IN_DIR='pwd_pattern'; implement the same way as
+SHOW_ON_UPGLOB. how should it interact with POWERLEVEL9K_${SEGMENT}_DISABLED_DIR_PATTERN?
+
+---
+
+add `p10k upglob`; returns 0 on match and sets REPLY to the directory where match was found.
+
+---
+
+when directory cannot be shortened any further, start chopping off segments from the left and
+replacing the chopped off part with `…`. e.g., `…/x/anchor/y/anchor`. the shortest dir
+representation is thus `…/last` or `…/last` depending on whether the last segment is an anchor.
+the replacement parameter's value is `…/` (with a slash) to allow for `x/anchor/y/anchor`.
+
+---
+
+- add to faq: how do i display an environment variable in prompt? link it from "extensible"
+
+---
+
+- add to faq: how do i display an icon in prompt? link it from "extensible"
+
+---
+
+- add root_indicator to config templates
+
+---
+
+- test chruby and add it to config templates
+
+---
+
+- add ssh to config templates
+
+---
+
+- add swift version to config templates; see if there is a good pattern for PROJECT_ONLY
+
+---
+
+- add swiftenv
+
+---
+
+- add faq: how to customize directory shortening? mention POWERLEVEL9K_DIR_TRUNCATE_BEFORE_MARKER,
+POWERLEVEL9K_DIR_MAX_LENGTH and co., and truncate_to_last.
+
+---
+
+fix a bug in zsh: https://github.com/romkatv/powerlevel10k/issues/502. to reproduce:
+
+```zsh
+emulate zsh -o prompt_percent -c 'print -P "%F{#ff0000}red%F{green}%B bold green"'
+```
+
+---
+
+add `p10k explain` that prints something like this:
+
+```text
+segment     icons meaning
+
+---
+
+---
+
+---
+
+---
+
+---
+
+---
+
+---
+
+---
+--
+status      ✔  ✘  exit code of the last command
+```
+
+implement it the hard way: for every enabled segment go over all its {state,icon} pairs, resolve
+the icon (if not absolute), apply VISUAL_IDENTIFIER_EXPANSION, remove leading and trailing
+whitespace and print without formatting (sort of like `print -P | cat`); print segment names in
+green and icons in bold; battery can have an unlimited number of icons, so `...` would be needed
+(based on total length of concatenated icons rather than the number of icons); user-defined
+segments would have "unknown" icons by default (yellow and not bold); can allow them to
+participate by defining `explainprompt_foo` that populates array `reply` with strings like this:
+'-s STATE -i LOCK_ICON +r'; the first element must be segment description.
+
+---
+
+add `docker_context` prompt segment; similar to `kubecontext`; the data should come from
+`currentContext` field in `~/.docker/config.json` (according to
+https://github.com/starship/starship/issues/995); there is also `DOCKER_CONTEXT`; more info:
+https://docs.docker.com/engine/reference/commandline/context_use; also
+https://github.com/starship/starship/pull/996.
+
+---
+
+support `env`, `ionice` and `strace` precommands in `parser.zsh`.
+
+---
+
+Add ruler to configuration wizard. Options: `─`, `·`, `╌`, `┄`, `▁`, `═`.
+
+---
+
+Add frame styles to the wizard.
+
+```text
+╭─
+╰─
+
+┌─
+└─
+
+┏━
+┗━
+
+╔═
+╚═
+
+▛▀
+▙▄
+```
+
+Prompt connection should have matching options.
+
+---
+
+Add `POWERLEVEL9K_{LEFT,RIGHT}_SEGMENT_MIRROR_SEPARATOR`. If set, left segments get separated with
+`POWERLEVEL9K_LEFT_SEGMENT_SEPARATOR` followed by `POWERLEVEL9K_LEFT_SEGMENT_MIRROR_SEPARATOR`.
+Each is drawn without background. The first with the foreground of left segment, the second with
+the background of right segment. To insert space in between, embed it in
+`POWERLEVEL9K_{LEFT,RIGHT}_SEGMENT_MIRROR_SEPARATOR`.
+`POWERLEVEL9K_{LEFT,RIGHT}_SUBSEGMENT_SEPARATOR` is unused.
+
+---
+
+Add *Segment Connection* screen to configuration wizard with options *Fused*, *Touching* and
+*Disjoint*. The last two differ by the absence/presence of space between `SEGMENT_SEPARATOR` and
+`SEGMENT_MIRROR_SEPARATOR`.
+
+*Fused* requires line separator (there is already a screen for it) but the other two options require
+two filled separators similar to heads and tail. Figure out how to present this choice.
+
+---
+
+Optimize auto-wizard check.
+
+```text
+time ( repeat 1000 [[ -z "${parameters[(I)POWERLEVEL9K_*~(POWERLEVEL9K_MODE|POWERLEVEL9K_CONFIG_FILE)]}" ]] )
+user=0.21s system=0.05s cpu=99% total=0.264
+
+time ( repeat 1000 [[ -z "${parameters[(I)POWERLEVEL9K_*]}" ]] )
+user=0.17s system=0.00s cpu=99% total=0.175
+```
+
+---
+
+Add the equivalent of `P9K_PYTHON_VERSION` to all `*env` segments where it makes sense.
+
+---
+
+Define `P9K_ICON` on initialization. Fill it with `$icon`. Duplicate every key that ends in `_ICON`.
+Respect `POWERLEVEL9K_VCS_STASH_ICON` overrides but not anything with segment name or state.
+
+Define `POWERLEVEL9K_VCS_*` parameters in config templates for all symbols used in
+`my_git_formatter`. Add missing entries to `icons`. Use `$P9K_ICON[...]` within `my_git_formatter`.
+Add a screen to the wizard to choose between clear and circled icons.
+
+---
+
+Add a screen to the wizard asking whether to set `POWERLEVEL9K_VCS_DISABLED_WORKDIR_PATTERN='~'`.
+Show it only if there is `$HOME/.git`. By default this parameter should be commented out.

dotfiles/dot_oh-my-zsh/custom/themes/powerlevel10k/internal/parser.zsh

@@ -0,0 +1,382 @@
+typeset -grA __p9k_pb_cmd_skip=(
+  '}'         'always'  # handled specially
+  '{'         ''
+  '{'         ''
+  '|'         ''
+  '||'        ''
+  '&'         ''
+  '&&'        ''
+  '|&'        ''
+  '&!'        ''
+  '&|'        ''
+  ')'         ''
+  '('         ''
+  '()'        ''
+  '!'         ''
+  ';'         ''
+  'if'        ''
+  'fi'        ''
+  'elif'      ''
+  'else'      ''
+  'then'      ''
+  'while'     ''
+  'until'     ''
+  'do'        ''
+  'done'      ''
+  'esac'      ''
+  'end'       ''
+  'coproc'    ''
+  'nocorrect' ''
+  'noglob'    ''
+  'time'      ''
+  '[['        '\]\]'
+  '(('        '\)\)'
+  'case'      '\)|esac'
+  ';;'        '\)|esac'
+  ';&'        '\)|esac'
+  ';|'        '\)|esac'
+  'foreach'   '\(*\)'
+)
+
+typeset -grA __p9k_pb_precommand=(
+  '-'         ''
+  'builtin'   ''
+  'command'   ''
+  'exec'      '-[^a]#[a]'
+  'nohup'     ''
+  'setsid'    ''
+  'eatmydata' ''
+  'catchsegv' ''
+  'pkexec'    '--user'
+  'doas'      '-[^aCu]#[acU]'
+  'nice'      '-[^n]#[n]|--adjustment'
+  'stdbuf'    '-[^ioe]#[ioe]|--(input|output|error)'
+  'sudo'      '-[^aghpuUCcrtT]#[aghpuUCcrtT]|--(close-from|group|host|prompt|role|type|other-user|command-timeout|user)'
+  'ssh-agent' '-[^aEPt]#[aEPt]'
+  'tabbed'    '-[^gnprtTuU]#[gnprtTuU]'
+  'chronic'   ''
+  'ifne'      ''
+)
+
+typeset -grA __p9k_pb_redirect=(
+  '&>'   ''
+  '>'    ''
+  '>&'   ''
+  '<'    ''
+  '<&'   ''
+  '<>'   ''
+  '&>|'  ''
+  '>|'   ''
+  '&>>'  ''
+  '>>'   ''
+  '>>&'  ''
+  '&>>|' ''
+  '>>|'  ''
+  '<<<'  ''
+)
+
+typeset -grA __p9k_pb_term=(
+  '|'  ''
+  '||' ''
+  ';'  ''
+  '&'  ''
+  '&&' ''
+  '|&' ''
+  '&!' ''
+  '&|' ''
+  ';;' ''
+  ';&' ''
+  ';|' ''
+  '('  ''
+  ')'  ''
+  '()' ''  # handled specially
+  '}'  ''  # handled specially
+)
+
+typeset -grA __p9k_pb_term_skip=(
+  '('  '\)'
+  ';;' '\)|esac'
+  ';&' '\)|esac'
+  ';|' '\)|esac'
+)
+
+# Usage: _p9k_parse_buffer <buffer> [token-limit]
+#
+# Parses the specified command line buffer and populates array P9K_COMMANDS
+# with commands from it. Terminates early and returns 1 if there are more
+# tokens than the specified limit.
+#
+# Broken:
+#
+#   ---------------
+#   : $(x)
+#   ---------------
+#   : `x`
+#   ---------------
+#   ${x/}
+#   ---------------
+#   - -- x
+#   ---------------
+#   command -p -p x
+#   ---------------
+#   *
+#   ---------------
+#   x=$y; $x
+#   ---------------
+#   alias x=y; y
+#   ---------------
+#   x <<END
+#   ; END
+#   END
+#   ---------------
+#   Setup:
+#     setopt interactive_comments
+#     alias x='#'
+#   Punchline:
+#     x; y
+#   ---------------
+#
+# More brokenness with non-standard options (ignore_braces, ignore_close_braces, etc.).
+function _p9k_parse_buffer() {
+  [[ ${2:-0} == <-> ]] || return 2
+
+  local rcquotes
+  [[ -o rcquotes ]] && rcquotes=rcquotes
+
+  eval "$__p9k_intro"
+  setopt no_nomatch $rcquotes
+
+  typeset -ga P9K_COMMANDS=()
+
+  local -r id='(<->|[[:alpha:]_][[:IDENT:]]#)'
+  local -r var="\$$id|\${$id}|\"\$$id\"|\"\${$id}\""
+
+  local -i e ic c=${2:-'1 << 62'}
+  local skip n s r state token cmd prev
+  local -a aln alp alf v
+
+  if [[ -o interactive_comments ]]; then
+    ic=1
+    local tokens=(${(Z+C+)1})
+  else
+    local tokens=(${(z)1})
+  fi
+
+  {
+    while (( $#tokens )); do
+      (( e = $#state ))
+
+      while (( $#tokens == alp[-1] )); do
+        aln[-1]=()
+        alp[-1]=()
+        if (( $#tokens == alf[-1] )); then
+          alf[-1]=()
+          (( e = 0 ))
+        fi
+      done
+
+      while (( c-- > 0 )) || return; do
+        token=$tokens[1]
+        tokens[1]=()
+        if (( $+galiases[$token] )); then
+          (( $aln[(eI)p$token] )) && break
+          s=$galiases[$token]
+          n=p$token
+        elif (( e )); then
+          break
+        elif (( $+aliases[$token] )); then
+          (( $aln[(eI)p$token] )) && break
+          s=$aliases[$token]
+          n=p$token
+        elif [[ $token == ?*.?* ]] && (( $+saliases[${token##*.}] )); then
+          r=${token##*.}
+          (( $aln[(eI)s$r] )) && break
+          s=${saliases[$r]%% #}
+          n=s$r
+        else
+          break
+        fi
+        aln+=$n
+        alp+=$#tokens
+        [[ $s == *' ' ]] && alf+=$#tokens
+        (( ic )) && tokens[1,0]=(${(Z+C+)s}) || tokens[1,0]=(${(z)s})
+      done
+
+      case $token in
+        '<<'(|-))
+          state=h
+          continue
+          ;;
+        *('`'|['<>=$']'(')*)
+          if [[ $token == ('`'[^'`']##'`'|'"`'[^'`']##'`"'|'$('[^')']##')'|'"$('[^')']##')"'|['<>=']'('[^')']##')') ]]; then
+            s=${${token##('"'|)(['$<>']|)?}%%?('"'|)}
+            (( ic )) && tokens+=(';' ${(Z+C+)s}) || tokens+=(';' ${(z)s})
+          fi
+          ;;
+      esac
+
+      case $state in
+        *r)
+          state[-1]=
+          continue
+          ;;
+        a)
+          if [[ $token == $skip ]]; then
+            if [[ $token == '{' ]]; then
+              P9K_COMMANDS+=$cmd
+              cmd=
+              state=
+            else
+              skip='{'
+            fi
+            continue
+          else
+            state=t
+          fi
+          ;&  # fall through
+        t|p*)
+          if (( $+__p9k_pb_term[$token] )); then
+            if [[ $token == '()' ]]; then
+              state=
+            else
+              P9K_COMMANDS+=$cmd
+              if [[ $token == '}' ]]; then
+                state=a
+                skip=always
+              else
+                skip=$__p9k_pb_term_skip[$token]
+                state=${skip:+s}
+              fi
+            fi
+            cmd=
+            continue
+          elif [[ $state == t ]]; then
+            continue
+          elif [[ $state == *x ]]; then
+            if (( $+__p9k_pb_redirect[$token] )); then
+              prev=
+              state[-1]=r
+              continue
+            else
+              state[-1]=
+            fi
+          fi
+          ;;
+        s)
+          if [[ $token == $~skip ]]; then
+            state=
+          fi
+          continue
+          ;;
+        h)
+          while (( $#tokens )); do
+            (( e = ${tokens[(i)${(Q)token}]} ))
+            if [[ $tokens[e-1] == ';' && $tokens[e+1] == ';' ]]; then
+              tokens[1,e]=()
+              break
+            else
+              tokens[1,e]=()
+            fi
+          done
+          while (( $#alp && alp[-1] >= $#tokens )); do
+            aln[-1]=()
+            alp[-1]=()
+          done
+          state=t
+          continue
+          ;;
+      esac
+
+      if (( $+__p9k_pb_redirect[${token#<0-255>}] )); then
+        state+=r
+        continue
+      fi
+
+      if [[ $token == *'$'* ]]; then
+        if [[ $token == $~var ]]; then
+          n=${${token##[^[:IDENT:]]}%%[^[:IDENT:]]}
+          [[ $token == *'"' ]] && v=("${(P)n}") || v=(${(P)n})
+          tokens[1,0]=(${(@qq)v})
+          continue
+        fi
+      fi
+
+      case $state in
+        '')
+          if (( $+__p9k_pb_cmd_skip[$token] )); then
+            skip=$__p9k_pb_cmd_skip[$token]
+            [[ $token == '}' ]] && state=a || state=${skip:+s}
+            continue
+          fi
+          if [[ $token == *=* ]]; then
+            v=${(S)token/#(<->|([[:alpha:]_][[:IDENT:]]#(|'['*[^\\](\\\\)#']')))(|'+')=}
+            if (( $#v < $#token )); then
+              if [[ $v == '(' ]]; then
+                state=s
+                skip='\)'
+              fi
+              continue
+            fi
+          fi
+          : ${token::=${(Q)${~token}}}
+          ;;
+        p2)
+          if [[ -n $prev ]]; then
+            prev=
+          else
+            : ${token::=${(Q)${~token}}}
+            if [[ $token == '{'$~id'}' ]]; then
+              state=p2x
+              prev=$token
+            else
+              state=p
+            fi
+            continue
+          fi
+          ;&  # fall through
+        p)
+          if [[ -n $prev ]]; then
+            token=$prev
+            prev=
+          else
+            : ${token::=${(Q)${~token}}}
+            case $token in
+              '{'$~id'}') prev=$token; state=px; continue;;
+              [^-]*)                                     ;;
+              --)                      state=p1; continue;;
+              $~skip)                  state=p2; continue;;
+              *)                                 continue;;
+            esac
+          fi
+          ;;
+        p1)
+          if [[ -n $prev ]]; then
+            token=$prev
+            prev=
+          else
+            : ${token::=${(Q)${~token}}}
+            if [[ $token == '{'$~id'}' ]]; then
+              state=p1x
+              prev=$token
+              continue
+            fi
+          fi
+          ;;
+      esac
+
+      if (( $+__p9k_pb_precommand[$token] )); then
+        prev=
+        state=p
+        skip=$__p9k_pb_precommand[$token]
+        cmd+=$token$'\0'
+      else
+        state=t
+        [[ $token == ('(('*'))'|'`'*'`'|'$'*|['<>=']'('*')'|*$'\0'*) ]] || cmd+=$token$'\0'
+      fi
+    done
+  } always {
+    [[ $state == (px|p1x) ]] && cmd+=$prev
+    P9K_COMMANDS+=$cmd
+    P9K_COMMANDS=(${(u)P9K_COMMANDS%$'\0'})
+  }
+}

dotfiles/dot_oh-my-zsh/custom/themes/powerlevel10k/internal/worker.zsh

@@ -0,0 +1,219 @@
+# invoked in worker: _p9k_worker_main <pgid>
+function _p9k_worker_main() {
+  mkfifo -- $_p9k__worker_file_prefix.fifo || return
+  echo -nE - s$_p9k_worker_pgid$'\x1e'     || return
+  exec <$_p9k__worker_file_prefix.fifo     || return
+  zf_rm -- $_p9k__worker_file_prefix.fifo  || return
+
+  local -i reset
+  local req fd
+  local -a ready
+  local _p9k_worker_request_id
+  local -A _p9k_worker_fds       # fd => id$'\x1f'callback
+  local -A _p9k_worker_inflight  # id => inflight count
+
+  function _p9k_worker_reply() {
+    print -nr -- e${(pj:\n:)@}$'\x1e' || kill -- -$_p9k_worker_pgid
+  }
+
+  # usage: _p9k_worker_async <work> <callback>
+  function _p9k_worker_async() {
+    local fd async=$1
+    sysopen -r -o cloexec -u fd <(() { eval $async; } && print -n '\x1e') || return
+    (( ++_p9k_worker_inflight[$_p9k_worker_request_id] ))
+    _p9k_worker_fds[$fd]=$_p9k_worker_request_id$'\x1f'$2
+  }
+
+  trap '' PIPE
+
+  {
+    while zselect -a ready 0 ${(k)_p9k_worker_fds}; do
+      [[ $ready[1] == -r ]] || return
+      for fd in ${ready:1}; do
+        if [[ $fd == 0 ]]; then
+          local buf=
+          [[ -t 0 ]]  # https://www.zsh.org/mla/workers/2020/msg00207.html
+          if sysread -t 0 'buf[$#buf+1]'; then
+            while [[ $buf != *$'\x1e' ]]; do
+              sysread 'buf[$#buf+1]' || return
+            done
+          else
+            (( $? == 4 )) || return
+          fi
+          for req in ${(ps:\x1e:)buf}; do
+            _p9k_worker_request_id=${req%%$'\x1f'*}
+            () { eval $req[$#_p9k_worker_request_id+2,-1] }
+            (( $+_p9k_worker_inflight[$_p9k_worker_request_id] )) && continue
+            print -rn -- d$_p9k_worker_request_id$'\x1e' || return
+          done
+        else
+          local REPLY=
+          while true; do
+            if sysread -i $fd 'REPLY[$#REPLY+1]'; then
+              [[ $REPLY == *$'\x1e' ]] || continue
+            else
+              (( $? == 5 ))            || return
+              break
+            fi
+          done
+          local cb=$_p9k_worker_fds[$fd]
+          _p9k_worker_request_id=${cb%%$'\x1f'*}
+          unset "_p9k_worker_fds[$fd]"
+          exec {fd}>&-
+          if [[ $REPLY == *$'\x1e' ]]; then
+            REPLY[-1]=""
+            () { eval $cb[$#_p9k_worker_request_id+2,-1] }
+          fi
+          if (( --_p9k_worker_inflight[$_p9k_worker_request_id] == 0 )); then
+            unset "_p9k_worker_inflight[$_p9k_worker_request_id]"
+            print -rn -- d$_p9k_worker_request_id$'\x1e' || return
+          fi
+        fi
+      done
+    done
+  } always {
+    kill -- -$_p9k_worker_pgid
+  }
+}
+
+# invoked in master: _p9k_worker_invoke <request-id> <list>
+function _p9k_worker_invoke() {
+  [[ -n $_p9k__worker_resp_fd ]] || return
+  local req=$1$'\x1f'$2$'\x1e'
+  if [[ -n $_p9k__worker_req_fd && $+_p9k__worker_request_map[$1] == 0 ]]; then
+    _p9k__worker_request_map[$1]=
+    print -rnu $_p9k__worker_req_fd -- $req
+  else
+    _p9k__worker_request_map[$1]=$req
+  fi
+}
+
+function _p9k_worker_cleanup() {
+  # __p9k_intro bugs out here in some cases for some reason.
+  emulate -L zsh
+  [[ $_p9k__worker_shell_pid == $sysparams[pid] ]] && _p9k_worker_stop
+  return 0
+}
+
+function _p9k_worker_stop() {
+  # See comments in _p9k_worker_cleanup.
+  emulate -L zsh
+  add-zsh-hook -D zshexit _p9k_worker_cleanup
+  [[ -n $_p9k__worker_resp_fd     ]] && zle -F $_p9k__worker_resp_fd
+  [[ -n $_p9k__worker_resp_fd     ]] && exec {_p9k__worker_resp_fd}>&-
+  [[ -n $_p9k__worker_req_fd      ]] && exec {_p9k__worker_req_fd}>&-
+  [[ -n $_p9k__worker_pid         ]] && kill -- -$_p9k__worker_pid 2>/dev/null
+  [[ -n $_p9k__worker_file_prefix ]] && zf_rm -f -- $_p9k__worker_file_prefix.fifo
+  _p9k__worker_pid=
+  _p9k__worker_req_fd=
+  _p9k__worker_resp_fd=
+  _p9k__worker_shell_pid=
+  _p9k__worker_request_map=()
+  return 0
+}
+
+function _p9k_worker_receive() {
+  eval "$__p9k_intro"
+
+  [[ -z $_p9k__worker_resp_fd ]] && return
+
+  {
+    (( $# <= 1 )) || return
+
+    local buf resp
+
+    [[ -t $_p9k__worker_resp_fd ]]  # https://www.zsh.org/mla/workers/2020/msg00207.html
+    if sysread -i $_p9k__worker_resp_fd -t 0 'buf[$#buf+1]'; then
+      while [[ $buf == *[^$'\x05\x1e']$'\x05'# ]]; do
+        sysread -i $_p9k__worker_resp_fd 'buf[$#buf+1]' || return
+      done
+    else
+      (( $? == 4 )) || return
+    fi
+
+    local -i reset max_reset
+    for resp in ${(ps:\x1e:)${buf//$'\x05'}}; do
+      local arg=$resp[2,-1]
+      case $resp[1] in
+        d)
+          local req=$_p9k__worker_request_map[$arg]
+          if [[ -n $req ]]; then
+            _p9k__worker_request_map[$arg]=
+            print -rnu $_p9k__worker_req_fd -- $req                                   || return
+          else
+            unset "_p9k__worker_request_map[$arg]"
+          fi
+        ;;
+        e)
+          () { eval $arg }
+          (( reset > max_reset )) && max_reset=reset
+        ;;
+        s)
+          [[ -z $_p9k__worker_req_fd ]]                                               || return
+          [[ $arg == <1->        ]]                                                   || return
+          _p9k__worker_pid=$arg
+          sysopen -w -o cloexec -u _p9k__worker_req_fd $_p9k__worker_file_prefix.fifo || return
+          local req=
+          for req in $_p9k__worker_request_map; do
+            print -rnu $_p9k__worker_req_fd -- $req                                   || return
+          done
+          _p9k__worker_request_map=({${(k)^_p9k__worker_request_map},''})
+        ;;
+        *)
+          return 1
+        ;;
+      esac
+    done
+
+    if (( max_reset == 2 )); then
+      _p9k__refresh_reason=worker
+      _p9k_set_prompt
+      _p9k__refresh_reason=''
+    fi
+    (( max_reset )) && _p9k_reset_prompt
+    return 0
+  } always {
+    (( $? )) && _p9k_worker_stop
+  }
+}
+
+function _p9k_worker_start() {
+  setopt monitor || return
+  {
+    [[ -n $_p9k__worker_resp_fd ]] && return
+
+    if [[ -n "$TMPDIR" && ( ( -d "$TMPDIR" && -w "$TMPDIR" ) || ! ( -d /tmp && -w /tmp ) ) ]]; then
+      local tmpdir=$TMPDIR
+    else
+      local tmpdir=/tmp
+    fi
+    _p9k__worker_file_prefix=$tmpdir/p10k.worker.$EUID.$sysparams[pid].$EPOCHSECONDS
+
+    sysopen -r -o cloexec -u _p9k__worker_resp_fd <(
+      exec 0</dev/null
+      if [[ -n $_POWERLEVEL9K_WORKER_LOG_LEVEL ]]; then
+        exec 2>$_p9k__worker_file_prefix.log
+        setopt xtrace
+      else
+        exec 2>/dev/null
+      fi
+      builtin cd -q /                    || return
+      zmodload zsh/zselect               || return
+      ! { zselect -t0 || (( $? != 1 )) } || return
+      local _p9k_worker_pgid=$sysparams[pid]
+      _p9k_worker_main &
+      {
+        trap '' PIPE
+        while syswrite $'\x05'; do zselect -t 1000; done
+        zf_rm -f $_p9k__worker_file_prefix.fifo
+        kill -- -$_p9k_worker_pgid
+      } &
+      exec =true) || return
+    _p9k__worker_pid=$sysparams[procsubstpid]
+    zle -F $_p9k__worker_resp_fd _p9k_worker_receive
+    _p9k__worker_shell_pid=$sysparams[pid]
+    add-zsh-hook zshexit _p9k_worker_cleanup
+  } always {
+    (( $? )) && _p9k_worker_stop
+  }
+}