refactor(users/glittershark): Rename to grfn r/2485

Rename my //users directory and all places that refer to glittershark to
grfn, including nix references and documentation.

This may require some extra attention inside of gerrit's database after
it lands to allow me to actually push things.

Change-Id: I4728b7ec2c60024392c1c1fa6e0d4a59b3e266fa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2933
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>

1 files changed, 151 insertions, 0 deletions

diff --git a/users/grfn/system/home/modules/pure.zsh-theme b/users/grfn/system/home/modules/pure.zsh-theme
new file mode 100755
index 0000000000..b4776e8159
--- /dev/null
+++ b/users/grfn/system/home/modules/pure.zsh-theme
@@ -0,0 +1,151 @@
+#!/bin/zsh -f
+# vim: ft=zsh:
+# 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"
+}
+
+is_git_repo() {
+	command git rev-parse --is-inside-work-tree &>/dev/null
+	return $?
+}
+
+# fastest possible way to check if repo is dirty
+prompt_pure_git_dirty() {
+	# check if we're in a git repo
+	is_git_repo || return
+	# check if it's dirty
+	[[ "$PURE_GIT_UNTRACKED_DIRTY" == 0 ]] && local umode="-uno" || local umode="-unormal"
+	command test -n "$(git status --porcelain --ignore-submodules ${umode})"
+
+	(($? == 0)) && echo '*'
+}
+
+prompt_pure_git_wip() {
+	is_git_repo || return
+	local subject="$(command git show --pretty=%s --quiet HEAD 2>/dev/null)"
+	[ "$subject" == 'wip' ] && echo '[WIP]'
+}
+
+# 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_nix_info() {
+	local packages_info=''
+	if [[ -z $NIX_SHELL_PACKAGES ]]; then
+		packages_info='[nix-shell]'
+	else
+		packages_info="{ $NIX_SHELL_PACKAGES }"
+	fi
+
+	case $IN_NIX_SHELL in
+		'pure')
+			echo "$fg_bold[green][nix-shell] "
+			;;
+		'impure')
+			echo "$fg_bold[magenta][nix-shell] "
+			;;
+		*) ;;
+	esac
+}
+
+prompt_pure_precmd() {
+	# shows the full path in the title
+	print -Pn '\e]0;%~\a'
+
+	# git info
+	vcs_info
+
+	local prompt_pure_preprompt="\n$(prompt_pure_nix_info)$fg_bold[green]$prompt_pure_username%F{blue}%~%F{yellow}$vcs_info_msg_0_`prompt_pure_git_dirty` $fg_no_bold[red]`prompt_pure_git_wip`%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
+	[[ "$SSH_CONNECTION" != '' ]] && prompt_pure_username='%n@%m '
+
+	# prompt turns red if the previous command didn't exit with 0
+	PROMPT='%(?.%F{green}.%F{red})❯%f '
+}
+
+prompt_pure_setup "$@"