Move common env role to configure-env playbook

playbooks/files/powerline-init.sh

@@ -0,0 +1,153 @@
+_powerline_columns_fallback() {
+	if which stty &>/dev/null ; then
+		local cols="$(stty size 2>/dev/null)"
+		if ! test -z "$cols" ; then
+			echo "${cols#* }"
+			return 0
+		fi
+	fi
+	echo 0
+	return 0
+}
+
+_powerline_tmux_pane() {
+	echo "${TMUX_PANE:-`TMUX="$_POWERLINE_TMUX" tmux display -p "#D"`}" | \
+		tr -d ' %'
+}
+
+_powerline_tmux_setenv() {
+	TMUX="$_POWERLINE_TMUX" tmux setenv -g TMUX_"$1"_`_powerline_tmux_pane` "$2"
+	TMUX="$_POWERLINE_TMUX" tmux refresh -S
+}
+
+_powerline_tmux_set_pwd() {
+	if test "$_POWERLINE_SAVED_PWD" != "$PWD" ; then
+		_POWERLINE_SAVED_PWD="$PWD"
+		_powerline_tmux_setenv PWD "$PWD"
+	fi
+}
+
+_powerline_return() {
+	return $1
+}
+
+_POWERLINE_HAS_PIPESTATUS="$(
+	_powerline_return 0 | _powerline_return 43
+	test "${PIPESTATUS[*]}" = "0 43"
+	echo "$?"
+)"
+
+_powerline_has_pipestatus() {
+	return $_POWERLINE_HAS_PIPESTATUS
+}
+
+_powerline_status_wrapper() {
+	local last_exit_code=$? last_pipe_status=( "${PIPESTATUS[@]}" )
+
+	if ! _powerline_has_pipestatus \
+	   || test "${#last_pipe_status[@]}" -eq "0" \
+	   || test "$last_exit_code" != "${last_pipe_status[$(( ${#last_pipe_status[@]} - 1 ))]}" ; then
+		last_pipe_status=()
+	fi
+	"$@" $last_exit_code "${last_pipe_status[*]}"
+	return $last_exit_code
+}
+
+_powerline_add_status_wrapped_command() {
+	local action="$1" ; shift
+	local cmd="$1" ; shift
+	full_cmd="_powerline_status_wrapper $cmd"
+	if test "$action" = "append" ; then
+		PROMPT_COMMAND="$PROMPT_COMMAND"$'\n'"$full_cmd"
+	else
+		PROMPT_COMMAND="$full_cmd"$'\n'"$PROMPT_COMMAND"
+	fi
+}
+
+_powerline_tmux_set_columns() {
+	_powerline_tmux_setenv COLUMNS "${COLUMNS:-`_powerline_columns_fallback`}"
+}
+
+_powerline_init_tmux_support() {
+	if test -n "$TMUX" && tmux refresh -S &>/dev/null ; then
+		# TMUX variable may be unset to create new tmux session inside this one
+		_POWERLINE_TMUX="$TMUX"
+
+		trap '_powerline_tmux_set_columns' WINCH
+		_powerline_tmux_set_columns
+
+		test "$PROMPT_COMMAND" != "${PROMPT_COMMAND/_powerline_tmux_set_pwd}" \
+			|| _powerline_add_status_wrapped_command append _powerline_tmux_set_pwd
+	fi
+}
+
+_powerline_local_prompt() {
+	# Arguments:
+	# 1: side
+	# 2: renderer_module arg
+	# 3: last_exit_code
+	# 4: last_pipe_status
+	# 5: jobnum
+	# 6: local theme
+	"$POWERLINE_COMMAND" $POWERLINE_COMMAND_ARGS shell $1 \
+		$2 \
+		--last-exit-code=$3 \
+		--last-pipe-status="$4" \
+		--jobnum=$5 \
+		--renderer-arg="client_id=$$" \
+		--renderer-arg="local_theme=$6"
+}
+
+_powerline_prompt() {
+	# Arguments:
+	# 1: side
+	# 2: last_exit_code
+	# 3: last_pipe_status
+	# 4: jobnum
+	"$POWERLINE_COMMAND" $POWERLINE_COMMAND_ARGS shell $1 \
+		--width="${COLUMNS:-$(_powerline_columns_fallback)}" \
+		-r.bash \
+		--last-exit-code=$2 \
+		--last-pipe-status="$3" \
+		--jobnum=$4 \
+		--renderer-arg="client_id=$$"
+}
+
+_powerline_set_prompt() {
+	local last_exit_code=$1 ; shift
+	local last_pipe_status=$1 ; shift
+	local jobnum="$(jobs -p|wc -l)"
+	PS1="$(_powerline_prompt aboveleft $last_exit_code "$last_pipe_status" $jobnum)"
+	if test -n "$POWERLINE_SHELL_CONTINUATION$POWERLINE_BASH_CONTINUATION" ; then
+		PS2="$(_powerline_local_prompt left -r.bash $last_exit_code "$last_pipe_status" $jobnum continuation)"
+	fi
+	if test -n "$POWERLINE_SHELL_SELECT$POWERLINE_BASH_SELECT" ; then
+		PS3="$(_powerline_local_prompt left '' $last_exit_code "$last_pipe_status" $jobnum select)"
+	fi
+}
+
+_powerline_setup_prompt() {
+	VIRTUAL_ENV_DISABLE_PROMPT=1
+	if test -z "${POWERLINE_COMMAND}" ; then
+		POWERLINE_COMMAND="$("$POWERLINE_CONFIG_COMMAND" shell command)"
+	fi
+	test "$PROMPT_COMMAND" != "${PROMPT_COMMAND%_powerline_set_prompt*}" \
+		|| _powerline_add_status_wrapped_command prepend _powerline_set_prompt
+	PS2="$(_powerline_local_prompt left -r.bash 0 0 0 continuation)"
+	PS3="$(_powerline_local_prompt left '' 0 0 0 select)"
+}
+
+if test -z "${POWERLINE_CONFIG_COMMAND}" ; then
+	if which powerline-config >/dev/null ; then
+		POWERLINE_CONFIG_COMMAND=powerline-config
+	else
+		POWERLINE_CONFIG_COMMAND="$(dirname "$BASH_SOURCE")/../../../scripts/powerline-config"
+	fi
+fi
+
+if "${POWERLINE_CONFIG_COMMAND}" shell --shell=bash uses prompt ; then
+	_powerline_setup_prompt
+fi
+if "${POWERLINE_CONFIG_COMMAND}" shell --shell=bash uses tmux ; then
+	_powerline_init_tmux_support
+fi