Initial commit of the working files

7 files changed, 319 insertions, 0 deletions

diff --git a/lib/arg_processing.sh b/lib/arg_processing.sh
new file mode 100644
index 0000000..d8fb92c
--- /dev/null
+++ b/lib/arg_processing.sh
@@ -0,0 +1,9 @@
+#! Check script arguments.
+
+check_arg_side() {
+	local side="$1"		
+	if ! [ "$side" ==  "left" -o "$side" == "right" ]; then
+		echo "Argument must be must be the side to handle {left, right} and not \"${side}\"."
+    	exit 1
+	fi
+}
diff --git a/lib/formatting.sh b/lib/formatting.sh
new file mode 100644
index 0000000..d891863
--- /dev/null
+++ b/lib/formatting.sh
@@ -0,0 +1,5 @@
+__print_colored_content() {
+	echo -n "#[fg=colour$3, bg=colour$2]"
+	echo -n "$1"
+	echo -n "#[default]"
+}
diff --git a/lib/muting.sh b/lib/muting.sh
new file mode 100644
index 0000000..595ba87
--- /dev/null
+++ b/lib/muting.sh
@@ -0,0 +1,20 @@
+# Muting Logic
+# In all cases $1 is the side to be muted (eg left/right).
+
+powerline_muted() {
+	[ -e "$(__powerline_mute_file $1)" ];
+}
+
+toggle_powerline_mute_status() {
+	if powerline_muted $1; then
+		rm "$(__powerline_mute_file $1)"
+	else
+		touch "$(__powerline_mute_file $1)"
+	fi
+}
+
+__powerline_mute_file() {
+	local tmux_session=$(tmux display -p "#S")
+
+	echo -n "${TMUX_POWERLINE_DIR_TEMPORARY}/mute_${tmux_session}_$1"
+}
diff --git a/lib/powerline.sh b/lib/powerline.sh
new file mode 100644
index 0000000..3a3fb68
--- /dev/null
+++ b/lib/powerline.sh
@@ -0,0 +1,142 @@
+# Library functions
+
+print_powerline() {
+	local side="$1"
+	local upper_side=$(echo "$1" | tr '[:lower:]' '[:upper:]')
+	eval "local input_segments=(\"\${TMUX_POWERLINE_${upper_side}_STATUS_SEGMENTS[@]}\")"
+	local powerline_segments=()
+	local powerline_segment_contents=()
+
+	__check_platform
+
+	__process_segment_defaults
+	__process_scripts
+	__process_colors
+
+	__process_powerline
+}
+
+__process_segment_defaults() {
+	for segment_index in "${!input_segments[@]}"; do
+		local input_segment=(${input_segments[$segment_index]})
+		eval "local default_separator=\$TMUX_POWERLINE_DEFAULT_${upper_side}SIDE_SEPARATOR"
+
+		powerline_segment_with_defaults=(
+			${input_segment[0]:-"no_script"} \
+			${input_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR} \
+			${input_segment[2]:-$TMUX_POWERLINE_DEFAULT_FOREGROUND_COLOR} \
+			${input_segment[3]:-$default_separator} \
+		)
+
+		powerline_segments[$segment_index]="${powerline_segment_with_defaults[@]}"
+	done
+}
+
+__process_scripts() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+
+		if [ -n "$TMUX_POWERLINE_DIR_USER_SEGMENTS" ] && [ -f "$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh" ] ; then
+			local script="$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh"
+		else
+			local script="$TMUX_POWERLINE_DIR_SEGMENTS/${powerline_segment[0]}.sh"
+		fi
+
+		export TMUX_POWERLINE_CUR_SEGMENT_BG="${powerline_segment[1]}"
+		export TMUX_POWERLINE_CUR_SEGMENT_FG="${powerline_segment[2]}"
+		source "$script"
+		local output
+		output=$(run_segment)
+		local exit_code="$?"
+		unset -f run_segment
+
+		if [ "$exit_code" -ne 0 ] && debug_mode_enabled ; then
+			local seg_name="${script##*/}"
+			echo "Segment '${seg_name}' exited with code ${exit_code}. Aborting."
+			exit 1
+		fi
+
+		if [ -n "$output" ]; then
+			powerline_segment_contents[$segment_index]=" $output "
+		else
+			unset -v powerline_segments[$segment_index]
+		fi
+	done
+}
+
+__process_colors() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+	 	# Find the next segment that produces content (i.e. skip empty segments).
+		for next_segment_index in $(eval echo {$(($segment_index + 1))..${#powerline_segments}}) ; do
+			[[ -n ${powerline_segments[next_segment_index]} ]] && break
+		done
+		local next_segment=(${powerline_segments[$next_segment_index]})
+
+		if [ $side == 'left' ]; then
+			powerline_segment[4]=${next_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
+		elif [ $side == 'right' ]; then
+			powerline_segment[4]=${previous_background_color:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
+		fi
+
+		if __segment_separator_is_thin; then
+			powerline_segment[5]=${powerline_segment[2]}
+		else
+			powerline_segment[5]=${powerline_segment[1]}
+		fi
+
+		local previous_background_color=${powerline_segment[1]}
+
+		powerline_segments[$segment_index]="${powerline_segment[@]}"
+	done
+}
+
+__process_powerline() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+
+		local background_color=${powerline_segment[1]}
+		local foreground_color=${powerline_segment[2]}
+		local separator=${powerline_segment[3]}
+		local separator_background_color=${powerline_segment[4]}
+		local separator_foreground_color=${powerline_segment[5]}
+
+		eval "__print_${side}_segment ${segment_index} ${background_color} ${foreground_color} ${separator} ${separator_background_color} ${separator_foreground_color}"
+	done
+}
+
+__print_left_segment() {
+	local content=${powerline_segment_contents[$1]}
+	local content_background_color=$2
+	local content_foreground_color=$3
+	local separator=$4
+	local separator_background_color=$5
+	local separator_foreground_color=$6
+
+	__print_colored_content "$content" $content_background_color $content_foreground_color
+	__print_colored_content $separator $separator_background_color $separator_foreground_color
+}
+
+__print_right_segment() {
+	local content=${powerline_segment_contents[$1]}
+	local content_background_color=$2
+	local content_foreground_color=$3
+	local separator=$4
+	local separator_background_color=$5
+	local separator_foreground_color=$6
+
+	__print_colored_content $separator $separator_background_color $separator_foreground_color
+	__print_colored_content "$content" $content_background_color $content_foreground_color
+}
+
+__segment_separator_is_thin() {
+	[[ ${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_LEFT_THIN || \
+		${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_RIGHT_THIN ]];
+}
+
+__check_platform() {
+	if [ "$SHELL_PLATFORM" == "unknown" ] && debug_mode_enabled; then
+		 echo "Unknown platform; modify config/shell.sh"  &1>&2
+	fi
+}
+
diff --git a/lib/rcfile.sh b/lib/rcfile.sh
new file mode 100644
index 0000000..db88198
--- /dev/null
+++ b/lib/rcfile.sh
@@ -0,0 +1,68 @@
+# Read user rc file.
+
+process_settings() {
+	__read_rcfile
+
+	if [ -z "$TMUX_POWERLINE_DEBUG_MODE_ENABLED" ]; then
+		export TMUX_POWERLINE_DEBUG_MODE_ENABLED="${TMUX_POWERLINE_DEBUG_MODE_ENABLED_DEFAULT}"
+	fi
+
+	if [ -z "$TMUX_POWERLINE_PATCHED_FONT_IN_USE" ]; then
+		export TMUX_POWERLINE_PATCHED_FONT_IN_USE="${TMUX_POWERLINE_PATCHED_FONT_IN_USE_DEFAULT}"
+	fi
+
+	if [ -z "$TMUX_POWERLINE_THEME" ]; then
+		export TMUX_POWERLINE_THEME="${TMUX_POWERLINE_THEME_DEFAULT}"
+	fi
+
+	eval TMUX_POWERLINE_DIR_USER_SEGMENTS="$TMUX_POWERLINE_DIR_USER_SEGMENTS"
+	eval TMUX_POWERLINE_DIR_USER_THEMES="$TMUX_POWERLINE_DIR_USER_THEMES"
+	if [ -n "$TMUX_POWERLINE_DIR_USER_THEMES" ] && [ -f "${TMUX_POWERLINE_DIR_USER_THEMES}/${TMUX_POWERLINE_THEME}.sh" ]; then
+		source "${TMUX_POWERLINE_DIR_USER_THEMES}/${TMUX_POWERLINE_THEME}.sh"
+	else
+		source "${TMUX_POWERLINE_DIR_THEMES}/${TMUX_POWERLINE_THEME}.sh"
+	fi
+
+}
+
+generate_default_rc() {
+	read -d '' rccontents  << EORC
+# Default configuration file for tmux-powerline.
+# Modeline {
+#	 vi: foldmarker={,} foldmethod=marker foldlevel=0 tabstop=4 filetype=sh
+# }
+
+# General {
+	# Show which segment fails and its exit code.
+	export TMUX_POWERLINE_DEBUG_MODE_ENABLED="${TMUX_POWERLINE_DEBUG_MODE_ENABLED_DEFAULT}"
+	# Use patched font symbols.
+	export TMUX_POWERLINE_PATCHED_FONT_IN_USE="${TMUX_POWERLINE_PATCHED_FONT_IN_USE_DEFAULT}"
+	# The theme to use.
+	export TMUX_POWERLINE_THEME="${TMUX_POWERLINE_THEME_DEFAULT}"
+	# Overlay dirctory to look for themes. There you can put your own themes outside the repo. Fallback will still be the "themes" directory in the repo.
+	export TMUX_POWERLINE_DIR_USER_THEMES=""
+	# Overlay dirctory to look for segments. There you can put your own segments outside the repo. Fallback will still be the "segments" directory in the repo.
+	export TMUX_POWERLINE_DIR_USER_SEGMENTS=""
+# }
+EORC
+
+	for segment in ${TMUX_POWERLINE_DIR_SEGMENTS}/*.sh; do
+		source "$segment"
+		if declare -f generate_segmentrc >/dev/null; then
+			segmentrc=$(generate_segmentrc | sed -e 's/^/\\t/g')
+			unset -f generate_segmentrc
+			local seg_name="${segment##*/}"
+			rccontents="${rccontents}\n\n# ${seg_name} {\n${segmentrc}\n# }"
+		fi
+	done
+
+	echo -e "$rccontents" > "$TMUX_POWERLINE_RCFILE_DEFAULT"
+	echo "Default configuration file generated to: ${TMUX_POWERLINE_RCFILE_DEFAULT}"
+	echo "Copy/move it to \"${TMUX_POWERLINE_RCFILE}\" and make your changes."
+}
+
+__read_rcfile() {
+	if [  -f "$TMUX_POWERLINE_RCFILE" ]; then
+		source "$TMUX_POWERLINE_RCFILE"
+	fi
+}
diff --git a/lib/text_roll.sh b/lib/text_roll.sh
new file mode 100644
index 0000000..e53247f
--- /dev/null
+++ b/lib/text_roll.sh
@@ -0,0 +1,63 @@
+# Rolling anything what you want.
+# arg1: text to roll.
+# arg2: max length to display.
+# arg3: roll speed in characters per second.
+roll_text() {
+	local text="$1"  # Text to print
+
+	if [ -z "$text" ]; then
+		return;
+	fi
+
+	local max_len="10"	# Default max length.
+
+	if [ -n "$2" ]; then
+		max_len="$2"
+	fi
+
+	local speed="1"  # Default roll speed in chars per second.
+
+	if [ -n "$3" ]; then
+		speed="$3"
+	fi
+
+	# Skip rolling if the output is less than max_len.
+	if [ "${#text}" -le "$max_len" ]; then
+		echo "$text"
+		return
+	fi
+
+	# Anything starting with 0 is an Octal number in Shell,C or Perl,
+	# so we must explicitly state the base of a number using base#number
+	local offset=$((10#$(date +%s) * ${speed} % ${#text}))
+
+	# Truncate text.
+	text=${text:offset}
+
+	local char	# Character.
+	local bytes # The bytes of one character.
+	local index
+
+	for ((index=0; index < max_len; index++)); do
+		char=${text:index:1}
+		bytes=$(echo -n $char | wc -c)
+		# The character will takes twice space
+		# of an alphabet if (bytes > 1).
+		if ((bytes > 1)); then
+			max_len=$((max_len - 1))
+		fi
+	done
+
+	text=${text:0:max_len}
+
+	#echo "index=${index} max=${max_len} len=${#text}"
+	# How many spaces we need to fill to keep
+	# the length of text that will be shown?
+	local fill_count=$((${index} - ${#text}))
+
+	for ((index=0; index < fill_count; index++)); do
+		text="${text} "
+	done
+
+	echo "${text}"
+}
diff --git a/lib/tmux_adapter.sh b/lib/tmux_adapter.sh
new file mode 100644
index 0000000..17674e4
--- /dev/null
+++ b/lib/tmux_adapter.sh
@@ -0,0 +1,12 @@
+# Get the current path in the segment.
+get_tmux_cwd() {
+	local env_name=$(tmux display -p "TMUXPWD_#D" | tr -d %)
+	local env_val=$(tmux show-environment | grep --color=never "$env_name")
+	# The version below is still quite new for tmux. Uncomment this in the future :-)
+	#local env_val=$(tmux show-environment "$env_name" 2>&1)
+
+	if [[ ! $env_val =~ "unknown variable" ]]; then
+		local tmux_pwd=$(echo "$env_val" | sed 's/^.*=//')
+		echo "$tmux_pwd"
+	fi
+}