new file mode 100644

@@ -0,0 +1,10 @@

+  # https://wiki.debian.org/chroot

+__prompt_chroot="$(! [ -r '/etc/debian_chroot' ] || cat '/etc/debian_chroot')"

+

+__prompt_chroot()

+{

+  if [ "$__prompt_chroot" ]

+  then

+    printf "$1" "$__prompt_chroot"

+  fi

+}

new file mode 100644

@@ -0,0 +1,23 @@

+__prompt_color_enabled="$(command -v tput)"

+__prompt_color_colors="$(! [ "$__prompt_color_enabled" ] || tput colors)"

+

+__prompt_color()

+{

+

+  [ "$__prompt_color_enabled" ] || return 0

+

+  __prompt_color="${PROMPT_COLOR:-15}"

+  if [ "$__prompt_color_colors" -lt "$__prompt_color" ]

+  then

+    __prompt_color="$((__prompt_color - 8))"

+    __prompt_color_bold='bold'

+  fi

+

+  printf "$1" "$(

+    tput -S << EOF

+      $__prompt_color_bold

+      setaf $__prompt_color

+      $2

+EOF

+  )"

+}

new file mode 100644

@@ -0,0 +1,12 @@

+__prompt_end_uid="$(id -u)"

+

+__prompt_end()

+{

+  if [ "$__prompt_end_uid" -eq 0 ]

+  then

+    printf "$1" "$3"

+  else

+    printf "$1" "$2"

+  fi

+}

+

new file mode 100644

@@ -0,0 +1,25 @@

+__prompt_exit()

+{

+  if [ "$3" -eq 0 ]

+  then

+    return 0

+  elif [ "$3" -lt 128 ]

+  then

+    printf "$1" "$3"

+  else

+    __prompt_exit_signal="$(kill -l "$(($3 - 128))" 2> '/dev/null')"

+    if ! [ "$__prompt_exit_signal" ]

+    then

+      printf "$1" "$3"

+      return 0

+    fi

+    for __prompt_exit_signal_mask in $2

+    do

+      if [ "$__prompt_exit_signal" = "$__prompt_exit_signal_mask" ]

+      then

+        return 0

+      fi

+    done

+    printf "$1" "$__prompt_exit_signal"

+  fi

+}

new file mode 100644

@@ -0,0 +1,24 @@

+# NOTE: `git-sh-prompt` relies on non-POSIX features, but we use it anyway

+# since the risk of a user running a Bourne style shell without these

+# features as a login shell is low.

+

+# https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh

+if [ -r '/usr/lib/git-core/git-sh-prompt' ]

+then

+  GIT_PS1_SHOWDIRTYSTATE='y'

+  GIT_PS1_SHOWSTASHSTATE='y'

+  GIT_PS1_SHOWUNTRACKEDFILES='y'

+  GIT_PS1_SHOWUPSTREAM='auto verbose'

+  # GIT_PS1_SHOWCOLORHINTS='y'

+  . '/usr/lib/git-core/git-sh-prompt'

+else

+  __git_ps1()

+  {

+    :

+  }

+fi

+

+__prompt_git()

+{

+  __git_ps1 "$@"

+}

new file mode 100644

@@ -0,0 +1,7 @@

+__prompt_intr_enabled="$(command -v stty)"

+

+__prompt_intr()

+{

+  [ "$__prompt_intr_enabled" ] || return 0

+  stty intr "$1"

+}

new file mode 100644

@@ -0,0 +1,7 @@

+__prompt_jobs()

+{

+  if [ "$2" -ne 0 ]

+  then

+    printf "$1" "$2"

+  fi

+}

new file mode 100644

@@ -0,0 +1,9 @@

+__prompt_pwd()

+{

+  if [ "$PWD" = "$HOME" ]

+  then

+    printf "$1" '~'

+  else

+    printf "$1" "${PWD##?*/}"

+  fi

+}

new file mode 100644

@@ -0,0 +1,8 @@

+# https://github.com/ranger/ranger/blob/master/doc/ranger.1

+__prompt_ranger()

+{

+  if [ "${RANGER_LEVEL:-}" ]

+  then

+    printf "$1" "$RANGER_LEVEL"

+  fi

+}

new file mode 100644

@@ -0,0 +1,18 @@

+__prompt_reset_style="$(! [ "$(command -v tput)" ] || tput sgr0)"

+__prompt_reset_cursor="$(

+  __prompt_reset_cursor=

+  # if echo "$TERM" | grep -q '^xterm\(-\|$\)'

+  # then

+    __prompt_reset_cursor='\033[1 q'

+  # fi

+  if echo "$TERM" | grep -q '^linux\(-\|$\)'

+  then

+    __prompt_reset_cursor='\033[?8c'

+  fi

+  printf "$__prompt_reset_cursor"

+)"

+

+__prompt_reset()

+{

+  printf "$1" "$__prompt_reset_style$__prompt_reset_cursor"

+}

new file mode 100644

@@ -0,0 +1,4 @@

+__prompt_run()

+{

+  printf "$1" "$(fc -ln -1 | sed 's/^\s*//')"

+}

new file mode 100644

@@ -0,0 +1,7 @@

+__prompt_shell="${0#-}"

+__prompt_shell="${__prompt_shell##*/}"

+

+__prompt_shell()

+{

+  printf "$1" "$__prompt_shell"

+}

new file mode 100644

@@ -0,0 +1,18 @@

+__prompt_statusline_tput()

+(

+  [ "$(command -v tput)" ] || return 0

+  if echo "$TERM" | grep -q '^xterm\(-\|$\)'

+  then

+    export TERM='xterm+sl'

+  fi

+  tput "$@"

+)

+

+__prompt_statusline_tsl="$(__prompt_statusline_tput tsl)"

+__prompt_statusline_fsl="$(__prompt_statusline_tput fsl)"

+

+__prompt_statusline()

+{

+  [ "$__prompt_statusline_tsl" ] || return 0

+  printf "$1" "${__prompt_statusline_tsl}${2}${__prompt_statusline_fsl}"

+}

new file mode 100644

@@ -0,0 +1,41 @@

+__prompt_time_dir=''

+[ -d "$__prompt_time_dir" ] || __prompt_time_dir="${XDG_RUNTIME_DIR:-"/var/run/user/$(id -u)"}"

+[ -d "$__prompt_time_dir" ] || __prompt_time_dir="${XDG_CACHE_HOME:-"$HOME/.cache"}"

+

+__prompt_time_file="$__prompt_time_dir/prompt_time/$$"

+

+mkdir -p "$(dirname "$__prompt_time_file")"

+

+__prompt_time_start()

+{

+  date '+%s' >| "$__prompt_time_file"

+}

+

+__prompt_time_stop()

+{

+  [ -r "$__prompt_time_file" ] || return 0

+  __prompt_time="$(("$(date '+%s')" - "$(cat "$__prompt_time_file")"))"

+  rm "$__prompt_time_file"

+  [ "$__prompt_time" -gt 0 ] || return 0

+  __prompt_time_d="$((__prompt_time / (24*60*60)))"

+  __prompt_time_h="$((__prompt_time % (24*60*60) / (60*60)))"

+  __prompt_time_m="$((__prompt_time              % (60*60) / (60)))"

+  __prompt_time_s="$((__prompt_time                        % (60)))"

+  __prompt_time_d="$([ "$__prompt_time_d" -eq 0 ] || printf '%02dd' "$__prompt_time_d")"

+  __prompt_time_h="$([ "$__prompt_time_h" -eq 0 ] || printf '%02dh' "$__prompt_time_h")"

+  __prompt_time_m="$([ "$__prompt_time_m" -eq 0 ] || printf '%02dm' "$__prompt_time_m")"

+  __prompt_time_s="$([ "$__prompt_time_s" -eq 0 ] || printf '%02ds' "$__prompt_time_s")"

+  printf '%s' \

+    "$__prompt_time_d" \

+    "$__prompt_time_h" \

+    "$__prompt_time_m" \

+    "$__prompt_time_s"

+}

+

+__prompt_time()

+{

+  if [ "$2" ]

+  then

+    printf "$1" "$2"

+  fi

+}

new file mode 100644

@@ -0,0 +1,19 @@

+# https://man.openbsd.org/ssh#SSH_CONNECTION

+__prompt_user_host="$(

+  if [ "$(id -u)" != "1000" ]

+  then

+    printf '%s' "$(id -un)"

+  fi

+  if [ "$SSH_CONNECTION" != "" ]

+  then

+    printf '@%s' "$(hostname)"

+  fi

+)"

+

+__prompt_user_host()

+{

+  if [ "$__prompt_user_host" ]

+  then

+    printf "$1" "$__prompt_user_host"

+  fi

+}

new file mode 100644

@@ -0,0 +1,63 @@

+VIRTUAL_ENV_DISABLE_PROMPT='1'

+

+__prompt_venv_rel()

+{

+  __prompt_venv_rel_dir="$PWD"

+  __prompt_venv_rel_up=''

+  while [ "${1#$__prompt_venv_rel_dir/}" = "$1" ]

+  do

+    __prompt_venv_rel_dir="${__prompt_venv_rel_dir%/*}"

+    __prompt_venv_rel_up="../$__prompt_venv_rel_up"

+  done

+  printf '%s' "$__prompt_venv_rel_up${1#$__prompt_venv_rel_dir/}"

+}

+

+__prompt_venv()

+{

+  if [ "${VIRTUAL_ENV:-}" ]

+  then

+    printf "$1" "$(__prompt_venv_rel "$VIRTUAL_ENV")"

+  fi

+}

+

+# Ask to activate the first virtual environment found, searching from the

+# current directory up to `$HOME` or `/`, whichever comes first.

+# https://github.com/python/cpython/blob/master/Lib/venv/scripts/common/activate

+__prompt_venv_activate()

+{

+  if [ "${VIRTUAL_ENV:-}" ]

+  then

+    deactivate

+  fi

+  __prompt_venv_dir="$PWD"

+  while

+    [ "$__prompt_venv_dir" != "$HOME" ] &&

+    [ "$__prompt_venv_dir" != '' ]

+  do

+    for __prompt_venv_activate in \

+      "$__prompt_venv_dir/"*'/bin/activate' \

+      "$__prompt_venv_dir/."*'/bin/activate'

+    do

+      [ -r "$__prompt_venv_activate" ] || continue

+      grep -q 'VIRTUAL_ENV' "$__prompt_venv_activate" || continue

+      __prompt_venv="${__prompt_venv_activate%/*/*}"

+      if [ "$__prompt_venv" != "$__prompt_venv_prev" ]

+      then

+        while true

+        do

+          printf 'Activate %s? [y/N] ' "$(__prompt_venv_rel "$__prompt_venv")"

+          read -r __prompt_venv_reply

+          case "$__prompt_venv_reply" in

+            'y'|'n'|'') break; ;;

+          esac

+        done

+      fi

+      case "$__prompt_venv_reply" in

+        'y') . "$__prompt_venv_activate"; ;;

+      esac

+      __prompt_venv_prev="$__prompt_venv"

+      return 0

+    done

+    __prompt_venv_dir="${__prompt_venv_dir%/*}"

+  done

+}

new file mode 100644

@@ -0,0 +1,50 @@

+# https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_05_03

+

+# NOTE: `PS0` and `PROMPT_COMMAND` are not POSIX but supported by common

+# shells.

+

+__prompt_ps1()

+{

+  __prompt_exit="$?"

+  __prompt_time="$(__prompt_time_stop)"

+  __prompt_jobs="$(jobs > '/dev/null'; jobs | wc -l)"

+  __prompt_color     '\x01%s\x02'

+  __prompt_user_host '%s:'

+  __prompt_pwd       '%s'

+  __prompt_chroot    ' (chroot:%s)'

+  __prompt_ranger    ' (ranger:%s)'

+  __prompt_venv      ' (venv:%s)'

+  __prompt_git       ' (git:%s)'

+  __prompt_jobs      ' {%s}' "$__prompt_jobs"

+  __prompt_time      ' [%s]' "$__prompt_time"

+  __prompt_exit      ' <%s>' 'TSTP' "$__prompt_exit"

+  __prompt_end       ' ' '$' '#'

+  __prompt_statusline '\x01%s\x02' "$(

+    __prompt_shell     '%s:' 'sh'

+    __prompt_user_host '%s:'

+    __prompt_pwd       '%s'

+  )"

+  __prompt_intr '^]'

+}

+

+__prompt_ps0()

+{

+  __prompt_intr '^C'

+  __prompt_statusline '%s' "$(

+    __prompt_shell     '%s:' 'sh'

+    __prompt_user_host '%s:'

+    __prompt_pwd       '%s'

+    __prompt_run       ':%s'

+  )"

+  __prompt_reset '%s'

+  __prompt_time_start

+}

+

+__prompt_command()

+{

+  __prompt_venv_activate

+}

+

+PS1='$(__prompt_ps1)'

+PS0='$(__prompt_ps0)'

+PROMPT_COMMAND='__prompt_command'