add pure prompt

modules/prompt/functions/prompt_pure_setup

@@ -0,0 +1,124 @@
+# Pure
+# by Sindre Sorhus
+# https://github.com/sindresorhus/pure
+# MIT License
+
+# For my own and others sanity
+# git:
+# %b => current branch
+# %a => current action (rebase/merge)
+# prompt:
+# %F => color dict
+# %f => reset color
+# %~ => current path
+# %* => time
+# %n => username
+# %m => shortname host
+# %(?..) => prompt conditional - %(condition.true.false)
+
+
+# turns seconds into human readable time
+# 165392 => 1d 21h 56m 32s
+prompt_pure_human_time() {
+  local tmp=$1
+    local days=$(( tmp / 60 / 60 / 24 ))
+    local hours=$(( tmp / 60 / 60 % 24 ))
+    local minutes=$(( tmp / 60 % 60 ))
+    local seconds=$(( tmp % 60 ))
+    (( $days > 0 )) && echo -n "${days}d "
+    (( $hours > 0 )) && echo -n "${hours}h "
+    (( $minutes > 0 )) && echo -n "${minutes}m "
+    echo "${seconds}s"
+}
+
+# fastest possible way to check if repo is dirty
+prompt_pure_git_dirty() {
+# check if we're in a git repo
+  command git rev-parse --is-inside-work-tree &>/dev/null || return
+# check if it's dirty
+    [[ "$PURE_GIT_UNTRACKED_DIRTY" == 0 ]] && local umode="-uno" || local umode="-unormal"
+    command test -n "$(git status --porcelain --ignore-submodules ${umode})"
+
+    (($? == 0)) && echo '*'
+}
+
+# displays the exec time of the last command if set threshold was exceeded
+prompt_pure_cmd_exec_time() {
+  local stop=$EPOCHSECONDS
+    local start=${cmd_timestamp:-$stop}
+  integer elapsed=$stop-$start
+    (($elapsed > ${PURE_CMD_MAX_EXEC_TIME:=5})) && prompt_pure_human_time $elapsed
+}
+
+prompt_pure_preexec() {
+  cmd_timestamp=$EPOCHSECONDS
+
+# shows the current dir and executed command in the title when a process is active
+    print -Pn "\e]0;"
+    echo -nE "$PWD:t: $2"
+    print -Pn "\a"
+}
+
+# string length ignoring ansi escapes
+prompt_pure_string_length() {
+  echo ${#${(S%%)1//(\%([KF1]|)\{*\}|\%[Bbkf])}}
+}
+
+prompt_pure_precmd() {
+# shows the full path in the title
+  print -Pn '\e]0;%~\a'
+
+# git info
+    vcs_info
+
+    local prompt_pure_preprompt="\n%F{blue}%~%F{242}$vcs_info_msg_0_`prompt_pure_git_dirty` $prompt_pure_username%f %F{yellow}`prompt_pure_cmd_exec_time`%f"
+    print -P $prompt_pure_preprompt
+
+# check async if there is anything to pull
+    (( ${PURE_GIT_PULL:-1} )) && {
+# check if we're in a git repo
+      command git rev-parse --is-inside-work-tree &>/dev/null &&
+# make sure working tree is not $HOME
+        [[ "$(command git rev-parse --show-toplevel)" != "$HOME" ]] &&
+# check check if there is anything to pull
+        command git fetch &>/dev/null &&
+# check if there is an upstream configured for this branch
+        command git rev-parse --abbrev-ref @'{u}' &>/dev/null && {
+          local arrows=''
+            (( $(command git rev-list --right-only --count HEAD...@'{u}' 2>/dev/null) > 0 )) && arrows='⇣'
+            (( $(command git rev-list --left-only --count HEAD...@'{u}' 2>/dev/null) > 0 )) && arrows+='⇡'
+            print -Pn "\e7\e[A\e[1G\e[`prompt_pure_string_length $prompt_pure_preprompt`C%F{cyan}${arrows}%f\e8"
+        }
+    } &!
+
+# reset value since `preexec` isn't always triggered
+  unset cmd_timestamp
+}
+
+
+prompt_pure_setup() {
+# prevent percentage showing up
+# if output doesn't end with a newline
+  export PROMPT_EOL_MARK=''
+
+    prompt_opts=(cr subst percent)
+
+    zmodload zsh/datetime
+    autoload -Uz add-zsh-hook
+    autoload -Uz vcs_info
+
+    add-zsh-hook precmd prompt_pure_precmd
+    add-zsh-hook preexec prompt_pure_preexec
+
+    zstyle ':vcs_info:*' enable git
+    zstyle ':vcs_info:git*' formats ' %b'
+    zstyle ':vcs_info:git*' actionformats ' %b|%a'
+
+# show username@host if logged in through SSH
+    [[ "$SSH_CONNECTION" != '' ]] && prompt_pure_username='%n@%m '
+
+# prompt turns red if the previous command didn't exit with 0
+    PROMPT='%(?.%F{magenta}.%F{red})❯%f '
+}
+
+prompt_pure_setup "$@"