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242 lines
5.7 KiB
242 lines
5.7 KiB
#!/bin/bash
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# vim: tw=80 ts=2 sw=2:
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set -eu
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ROOT_DCONF_DIR='/org/gnome/terminal/legacy/profiles:/'
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# ansi_colors COLOR1 ... COLOR16
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function ansi_colors() {
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echo -n "['$1'"
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for i in {2..16}; do
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echo -n ",'${!i}'"
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done
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echo "]"
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}
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# colorscheme NAME FG_COLOR BG_COLOR ANSI_COLORS
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function colorscheme() {
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NAME="$1"
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FG_COLOR="$2"
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BG_COLOR="$3"
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ANSI_COLORS="$4"
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echo "${NAME};${FG_COLOR};${BG_COLOR};${ANSI_COLORS}"
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}
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function unpack_colorscheme_field(){
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PACKED="$1"
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FIELD="$2"
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echo "${PACKED}" | cut -d ';' -f "${FIELD}"
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}
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# colorscheme_name COLORSCHEME
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function colorscheme_name() {
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unpack_colorscheme_field "$1" 1
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}
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# colorscheme_fg_color COLORSCHEME
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function colorscheme_fg_color() {
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unpack_colorscheme_field "$1" 2
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}
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# colorscheme_bg_color COLORSCHEME
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function colorscheme_bg_color() {
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unpack_colorscheme_field "$1" 3
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}
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# colorscheme_ansi_colors COLORSCHEME
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function colorscheme_ansi_colors() {
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unpack_colorscheme_field "$1" 4
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}
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GRUVBOX8_COLORSCHEME=$(colorscheme "gruvbox8" \
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"#ebdbb2" \
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"#1d2021" \
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$(ansi_colors \
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"#1d2021" \
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"#cc241d" \
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"#98971a" \
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"#d79921" \
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"#458588" \
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"#b16286" \
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"#689d6a" \
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"#a89984" \
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"#928374" \
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"#fb4934" \
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"#b8bb26" \
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"#fabd2f" \
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"#83a598" \
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"#d3869b" \
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"#8ec07c" \
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"#ebdbb2"
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)
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)
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COLORSCHEMES=(
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"${GRUVBOX8_COLORSCHEME}"
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)
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# log ARGS...
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# echo for stderr
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function log() {
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echo 1>&2 "$@"
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}
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# die ARGS...
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# log then exit with an error code
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function die() {
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log "$@"
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exit 1
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}
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function get_profile_property() {
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PROFILE="$1"
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PROPERTY="$2"
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dconf read "${PROFILE}${PROPERTY}"
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}
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# get_profile_name PROFILE
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# Echoes the human-readable name for a gnome-terminal profile subdirectory.
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function get_profile_name() {
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get_profile_property "$1" "visible-name"
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}
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# choose_number BASE_PROMPT MIN MAX
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# Asks the user to choose a number between MIN and MAX, inclusive.
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# BASE_PROMPT should not end in a newline.
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function choose_number() {
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PROMPT="$1"
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MIN_NUMBER="$2"
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MAX_NUMBER="$3"
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while true; do
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read -p "$1 [${MIN_NUMBER} to ${MAX_NUMBER}]: " CHOSEN_NUMBER
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if [ "${CHOSEN_NUMBER}" -lt "${MIN_NUMBER}" ]; then
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continue
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fi
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if [ "${CHOSEN_NUMBER}" -gt "${MAX_NUMBER}" ]; then
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continue
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fi
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echo "${CHOSEN_NUMBER}"
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break
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done
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}
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# choose_profile
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# Echoes the path to a valid gnome-terminal profile to modify.
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function choose_profile() {
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# Build an array of profile subdirectories.
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PROFILES=()
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for PROFILE_SUBDIR in $(dconf list "${ROOT_DCONF_DIR}"); do
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PROFILES+=("${ROOT_DCONF_DIR}${PROFILE_SUBDIR}")
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done
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NUM_PROFILES="${#PROFILES[@]}"
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if [ "${NUM_PROFILES}" -eq 0 ]; then
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die "Error: found no gnome-terminal profiles to style."
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fi
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if [ "${NUM_PROFILES}" -eq 1 ]; then
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PROFILE="${PROFILES[0]}"
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PROFILE_NAME=$(get_profile_name "${PROFILE}")
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log "Found single gnome-terminal profile ${PROFILE_NAME}, using it."
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echo "${PROFILE}"
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return
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fi
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log "Available gnome-terminal profiles:"
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for i in $(seq 1 "${NUM_PROFILES}"); do
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PROFILE="${PROFILES[$(($i - 1))]}"
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PROFILE_NAME=$(get_profile_name "${PROFILE}")
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log " #$i: ${PROFILE_NAME}"
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done
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choose_number "Choose a profile" 1 "${NUM_PROFILES}"
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}
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# find_colorscheme COLORSCHEME_NAME
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# Echoes the colorscheme if it exists.
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# Dies otherwise with a useful message.
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function find_colorscheme() {
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COLORSCHEME_NAME="$1"
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NAMES=()
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for COLORSCHEME in "${COLORSCHEMES[@]}"; do
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NAME=$(colorscheme_name ${COLORSCHEME})
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NAMES+=("${NAME}")
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if [ "${NAME,,}" == "${NAME,,}" ]; then
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echo "${COLORSCHEME}"
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return
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fi
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done
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log "Error: no such colorscheme '${COLORSCHEME_NAME}'. Options are:"
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for NAME in "${NAMES[@]}"; do
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log " - ${NAME}"
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done
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exit 1
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}
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# apply_colorscheme PROFILE COLORSCHEME
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# Applies the given packed colorscheme to the given gnome-terminal profile.
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function apply_colorscheme() {
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PROFILE="$1"
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COLORSCHEME="$2"
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FG_COLOR=$(colorscheme_fg_color "${COLORSCHEME}")
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BG_COLOR=$(colorscheme_bg_color "${COLORSCHEME}")
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ANSI_COLORS=$(colorscheme_ansi_colors "${COLORSCHEME}")
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dconf write "${PROFILE}foreground-color" "'${FG_COLOR}'"
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dconf write "${PROFILE}background-color" "'${BG_COLOR}'"
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dconf write "${PROFILE}palette" "${ANSI_COLORS}"
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}
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function main() {
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if [ "$#" -le 0 ]; then
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die "USAGE: style-gnome-terminal COLORSCHEME_NAME"
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fi
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# TODO: Subcommands:
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#
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# Profiles:
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#
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# - profile list
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# - profile show NAME_OR_ID
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#
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# Styling:
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#
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# These all take an optional [profile NAME_OR_ID] clause to specify a profile
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# by name or UUID. If unspecified, the program searches for profiles. If there
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# exists a single profile, the program uses it. Otherwise, an interactive
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# choice is presented to the user.
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#
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# - font get
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# - font set FONT
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# - foreground-color get
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# - foreground-color set COLOR
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# - background-color get
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# - background-color set COLOR
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# - palette get
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# - palette set COLORS
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# - colorscheme show NAME
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# - colorscheme apply NAME
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#
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# The colorscheme subcommand should probably read colorschemes from files
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# instead, for easier integration with other people's colorschemes. Otherwise
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# all colorschemes need to be defined in this script. The main question is the
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# file format. We'd like something easy enough to write, that does not execute
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# arbitrary code (rules our source-ing .sh files containing variables), that
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# does not require onerous dependencies to parse.
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COLORSCHEME_NAME="$1"
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COLORSCHEME=$(find_colorscheme "${COLORSCHEME_NAME}")
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PROFILE=$(choose_profile)
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apply_colorscheme "${PROFILE}" "${COLORSCHEME}"
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}
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main "$@"
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