A way to change colors dynamically with foot

Also some cleanup

2 files changed, 670 insertions, 4 deletions

diff --git a/dotfiles/.local/bin/chcolors b/dotfiles/.local/bin/chcolors
index e62b047..9cd4270 100755
--- a/dotfiles/.local/bin/chcolors
+++ b/dotfiles/.local/bin/chcolors
@@ -13,8 +13,5 @@ case $COLORSCHEME in
 		COLORSCHEME="dark" ;;
 esac
 
-sed -i --follow-symlinks \
-	"s/^colors:.*/colors: \*$COLORSCHEME/g" \
-	$HOME/.config/alacritty/alacritty.yml
-
 echo "export COLORSCHEME=$COLORSCHEME" > $HOME/.cache/colorscheme
+pkill -SIGUSR1 zsh
diff --git a/dotfiles/.local/bin/shtheme b/dotfiles/.local/bin/shtheme
new file mode 100755
index 0000000..2071019
--- /dev/null
+++ b/dotfiles/.local/bin/shtheme
@@ -0,0 +1,669 @@
+#!/bin/sh
+
+# Written by Aetnaeus.
+# Source: https://github.com/lemnos/theme.sh.
+# Licensed under the WTFPL provided this notice is preserved.
+
+# Find a broken theme? Want to add a missing one? PRs are welcome.
+
+VERSION=v1.1.5
+
+# Use truecolor sequences to simulate the end result.
+
+preview() {
+	awk -F": " -v target="$1" '
+		BEGIN {
+			"tput cols" | getline nc
+			"tput lines" | getline nr
+			nc = int(nc)
+			nr = int(nr)
+		}
+
+		/^# Themes/ { start++;next }
+		!start { next }
+
+		function hextorgb(s) {
+			hexchars = "0123456789abcdef"
+			s = tolower(s)
+
+			r = (index(hexchars, substr(s, 2, 1))-1)*16+(index(hexchars, substr(s, 3, 1))-1)
+			g = (index(hexchars, substr(s, 4, 1))-1)*16+(index(hexchars, substr(s, 5, 1))-1)
+			b = (index(hexchars, substr(s, 6, 1))-1)*16+(index(hexchars, substr(s, 7, 1))-1)
+		}
+
+		function fgesc(col) {
+			hextorgb(col)
+			return sprintf("\x1b[38;2;%d;%d;%dm", r, g, b)
+		}
+
+		function bgesc(col) {
+			hextorgb(col)
+			return sprintf("\x1b[48;2;%d;%d;%dm", r, g, b)
+		}
+
+		$0 == target {s++}
+
+		s && /^foreground:/ { fg = $2 }
+		s && /^background:/ { bg = $2 }
+		s && /^[0-9]+:/ { a[$1] = $2 }
+
+		/^ *$/ {s=0}
+
+		function puts(s,   len,   i,   normesc,   filling) {
+			normesc = sprintf("\x1b[0m%s%s", fgesc(fg), bgesc(bg))
+
+			len=s
+			gsub(/\033\[[^m]*m/, "", len)
+			len=length(len)
+
+			filling=""
+			for(i=0;i<(nc-len);i++) filling=filling" "
+
+			printf "%s%s%s%s\n", normesc, s, normesc, filling, ""
+			nr--
+		}
+
+		END {
+			puts("")
+			for (i = 0;i<16;i++)
+				puts(sprintf("  %s Color %d\x1b[0m", fgesc(a[i]), i))
+
+			# Note: Some terminals use different colors for bolded text and may produce slightly different ls output.
+
+			puts("")
+			puts(" # ls --color -F")
+			puts(sprintf("    file"))
+			puts(sprintf("    \x1b[1m%sdir/", fgesc(a[4])))
+			puts(sprintf("    \x1b[1m%sexecutable", fgesc(a[10])))
+			puts(sprintf("    \x1b[1m%ssymlink\x1b[0m%s%s", fgesc(a[6]), fgesc(fg), bgesc(bg)))
+
+
+			while(nr > 0) puts("")
+
+			printf "\x1b[0m"
+		}
+	' < "$0"
+}
+
+# Alphabetize and dedupe theme list.
+
+normalize_themes() {
+	awk '
+		# We could eliminate the sorting logic by using gnu extensions but that would reduce portability.
+
+		function cmp(a,b,ordTbl,    i,c1,c2,n) {
+			n = length(a) > length(b) ? length(b) : length(a)
+			for(i = 1;i <= n;i++) {
+				c1 = substr(a, i, 1)
+				c2 = substr(b, i, 1)
+
+				if(c1 != c2)
+					return ordTbl[c1] < ordTbl[c2]
+			}
+
+			return length(a) < length(b)
+		}
+
+		function sort(a,n,    i,j,tmp,ordTbl) {
+			 for(i = 0;i < 256;i++) ordTbl[sprintf("%c", i)] = i
+
+			for(i = 0;i < n;i++) {
+				tmp = a[i]
+				j = i-1
+				while(j >= 0 && cmp(tmp, a[j], ordTbl)) {
+					a[j+1] = a[j]
+					j--
+				}
+
+				a[j+1] = tmp
+			}
+		}
+
+		function sortKeys(a,keys,    n,k) {
+			for(k in a)
+				keys[n++] = k
+			sort(keys, n)
+			return n
+		}
+
+		/^ *$/ { inTheme = 0;next }
+		!inTheme { name = $0;inTheme=1;themes[name] = "";next }
+		inTheme { themes[name] = themes[name]$0"\n" }
+
+		END {
+			n = sortKeys(themes, names)
+
+			print ""
+			for(i = 0;i < n;i++) {
+				print names[i]
+				print tolower(themes[names[i]])
+			}
+		}
+	' "$@"
+}
+
+# Generate themes from one or more supplied kitty config files.
+
+generate_themes() {
+	awk -v argc=$# '
+		function chkProp(prop) {
+			if(!props[prop]) {
+				printf "ABORTING: %s is missing required property '\''%s'\''\n", currentFile, prop > "/dev/stderr"
+				aborted++
+				exit -1
+			}
+		}
+
+		function printTheme(    name,i,prop) {
+			name = currentFile
+			gsub(/.*\//, "", name)
+			gsub(/\.conf$/, "", name)
+
+			print name
+
+			for (i = 0;i < 16;i++) {
+				prop = sprintf("color%d", i)
+
+				chkProp(prop)
+				printf "%d: %s\n", i, props[prop]
+			}
+
+			chkProp("foreground")
+			chkProp("background")
+			chkProp("cursor")
+
+			print "foreground: "props["foreground"]
+			print "background: "props["background"]
+			print "cursor: "props["cursor"]
+			print ""
+		}
+
+		FILENAME != currentFile {
+			if(currentFile)
+				printTheme()
+
+			currentFile = FILENAME
+			delete props
+		}
+
+		{ props[$1] = $2 }
+
+		END { if(!aborted) printTheme() }
+	' "$@"
+}
+
+# Add themes to the script from one or more supplied kitty config files.
+
+add() {
+	tmp1="$(mktemp)"
+	tmp2="$(mktemp)"
+
+	awk 'i { print } /^# Themes/ { i++ }' "$0" > "$tmp1"
+	echo "" >> "$tmp1"
+	generate_themes "$@" >> "$tmp1" || exit $?
+
+	awk '{print} /^# Themes/ { exit }'  "$0" > "$tmp2"
+	normalize_themes "$tmp1" >> "$tmp2"
+
+
+	rm "$tmp1"
+	cat "$tmp2" > "$0" || exit $?
+
+	printf 'Successfully annexed %d themes. More! Feed me more!\n' $#
+}
+
+preview2() {
+	INHIBIT_THEME_HIST=1 "$0" "$1"
+
+	printf '\033[30mColor 0\n'
+	printf '\033[31mColor 1\n'
+	printf '\033[32mColor 2\n'
+	printf '\033[33mColor 3\n'
+	printf '\033[34mColor 4\n'
+	printf '\033[35mColor 5\n'
+	printf '\033[36mColor 6\n'
+	printf '\033[37mColor 7\n'
+
+	printf '\033[90mColor 8\n'
+	printf '\033[91mColor 9\n'
+	printf '\033[92mColor 10\n'
+	printf '\033[93mColor 11\n'
+	printf '\033[94mColor 12\n'
+	printf '\033[95mColor 13\n'
+	printf '\033[96mColor 14\n'
+	printf '\033[97mColor 15\n'
+
+	printf '\n\033[0m'
+	printf '# ls --color -F\n'
+	printf '    file\n'
+	printf '    \033[01;34mdir/\033[0m\n'
+	printf '    \033[01;32mexecutable\033[0m*\n'
+	printf '    \033[01;36msymlink\033[0m\n'
+
+	printf '\033[0m'
+}
+
+# Consumes a theme.sh definition from STDIN and applies it.
+
+apply_theme() {
+awk '
+	function tmuxesc(s) { return sprintf("\033Ptmux;\033%s\033\\", s) }
+	function normalize_term() {
+		# Term detection voodoo
+
+		if(ENVIRON["TERM_PROGRAM"] == "iTerm.app")
+			term="iterm"
+		else if(ENVIRON["TMUX"]) {
+			"tmux display-message -p \"#{client_termname}\"" | getline term
+			"tmux display-message -p \"#{client_termtype}\"" | getline termname
+
+			if(substr(termname, 1, 5) == "iTerm")
+				term="iterm"
+			is_tmux++
+		} else
+			term=ENVIRON["TERM"]
+	}
+
+	BEGIN {
+		normalize_term()
+
+		if(term == "iterm") {
+			bgesc="\033]Ph%s\033\\"
+			fgesc="\033]Pg%s\033\\"
+			colesc="\033]P%x%s\033\\"
+			curesc="\033]Pl%s\033\\"
+		} else {
+			#Terms that play nice :)
+
+			fgesc="\033]10;#%s\007"
+			bgesc="\033]11;#%s\007"
+			curesc="\033]12;#%s\007"
+			colesc="\033]4;%d;#%s\007"
+		}
+
+		if(is_tmux) {
+			fgesc=tmuxesc(fgesc)
+			bgesc=tmuxesc(bgesc)
+			curesc=tmuxesc(curesc)
+			colesc=tmuxesc(colesc)
+		}
+	}
+
+	/^foreground:/ { printf fgesc, substr($2, 2) > "/dev/tty" }
+	/^background:/ { printf bgesc, substr($2, 2) > "/dev/tty" }
+	/^cursor:/ { printf curesc, substr($2, 2) > "/dev/tty" }
+	/^[0-9]+:/ { printf colesc, $1, substr($2, 2) > "/dev/tty" }
+'
+}
+
+# Sets the current theme given a name and does the requisite bookkeeping.
+
+set_current_theme() {
+	awk -F": " -v target="$1" -v script="$0" '
+		/^# Themes/ { start++;next; }
+		!start { next }
+
+		$0 == target { found++;next; }
+
+		found { theme = theme $0 "\n" }
+		found && /^ *$/ { exit }
+
+		END {
+			if(found) {
+				printf "%s", theme | script
+
+				config_dir = (ENVIRON["XDG_CONFIG_HOME"] ?  ENVIRON["XDG_CONFIG_HOME"] : ENVIRON["HOME"])
+
+				histfile = config_dir"/.theme_history"
+				inhibit_hist=ENVIRON["INHIBIT_THEME_HIST"]
+
+				if(!inhibit_hist) {
+					while((getline < histfile) > 0)
+						if($0 != target)
+							out = out $0 "\n"
+					close(histfile)
+
+					out = out target
+					print out > histfile
+				}
+			} else {
+					printf "Theme not found: %s\n", target > "/dev/stderr"
+					exit(-1)
+			}
+		}
+	' < "$0"
+}
+
+# Dump the current theme in a format consumable by theme.sh
+# by attempting to read it from the terminal.
+#
+# NOTE: Many terms don't support this properly (e.g alacritty)
+
+# Refs
+
+# https://github.com/microsoft/terminal/issues/3718
+# https://github.com/alacritty/alacritty/blob/master/alacritty_terminal/src/ansi.rs#L972
+
+print_current_theme() {
+	awk '
+	function print_response(s) {
+		names["10;"] = "foreground"
+		names["11;"] = "background"
+		names["12;"] = "cursor"
+		for (i = 0; i < 16; i++)
+			names[sprintf("4;%d;", i)] = i
+
+		split(s, a, "]")
+		for (i in a) {
+			if (match(a[i], /rgb:/)) {
+				key = substr(a[i], 1, RSTART-1)
+
+				r=substr(a[i], RSTART+4, 2)
+				g=substr(a[i], RSTART+9, 2)
+				b=substr(a[i], RSTART+14, 2)
+
+				printf "%s: %s\n", names[key], "#"r g b
+			}
+		}
+	}
+
+	# We cant just use RS/getline for this since
+	# mawk does input buffering :(.
+
+	function read_response() {
+		buf = ""
+
+		# Accrue data until we encounter the terminating CSI response
+		while ((end=index(buf,"[")) == 0) {
+			# poor POSIX mans read :/
+			cmd="dd if=/dev/tty bs=1024 count=1 2> /dev/null"
+
+			while (cmd|getline data)
+				buf = buf data
+
+			close(cmd)
+		}
+
+		buf = substr(buf, 1, end-1)
+		return buf
+	}
+
+	BEGIN {
+		system("stty cbreak -echo")
+
+		tty = "/dev/tty"
+
+		# Yo dawg, I heard you like multiplexers...
+		if (ENVIRON["TMUX"]) {
+			# If we are running inside tmux we sent the request sequences
+			# to the currently attached terminal. Note that we still
+			# read the result from the virtual terminal.
+
+			# Flow:
+			# theme.sh (request) -> tty (response) -> pts (response) -> theme.sh
+			# where pts is the tmux pseudoterminal.
+
+			"tmux display-message -p \"#{client_tty}\""|getline tty
+		}
+
+		# Terminals may ignore these.
+
+		for(i=0;i<16;i++)
+			printf "\033]4;%d;?\007", i > tty
+
+		printf "\033]10;?\007" > tty
+		printf "\033]11;?\007" > tty
+		printf "\033]12;?\007" > tty
+
+		# Use a CSI DA1 sequence (supported by all terms)
+		# as a sentinel value to indicate end-of-response.
+		# (assumes request-response order is fifo)
+
+		printf "\033[c" > tty
+
+		print_response(read_response())
+
+		system("stty -cbreak echo")
+	}
+	'
+}
+
+isColorTerm() {
+	if [ -z "$TMUX" ]; then
+		[ -n "$COLORTERM" ]
+	else
+		tmux display-message -p '#{client_termfeatures}'|grep -q RGB
+	fi
+}
+
+list() {
+	case "$filterFlag" in
+		--light) filter=2 ;;
+		--dark) filter=1 ;;
+		*) filter=0 ;;
+	esac
+
+	awk -v filter="$filter" -F": " '
+		BEGIN {
+			config_dir = ENVIRON["XDG_CONFIG_HOME"] ?  ENVIRON["XDG_CONFIG_HOME"] : ENVIRON["HOME"]
+
+			histfile = config_dir"/.theme_history"
+			while((getline < histfile) > 0) {
+				mru[nmru++] = $0
+				mruIndex[$0] = 1
+			}
+		}
+
+		function luma(s,    r,g,b,hexchars) {
+			hexchars = "0123456789abcdef"
+			s = tolower(s)
+
+			r = (index(hexchars, substr(s, 2, 1))-1)*16+(index(hexchars, substr(s, 3, 1))-1)
+			g = (index(hexchars, substr(s, 4, 1))-1)*16+(index(hexchars, substr(s, 5, 1))-1)
+			b = (index(hexchars, substr(s, 6, 1))-1)*16+(index(hexchars, substr(s, 7, 1))-1)
+
+			return 0.2126 * r + 0.7152 * g + 0.0722 * b
+		}
+
+		/^# Theme/ { st++;next }
+		!st { next }
+
+		/^ *$/ { inner = 0;next }
+		!inner { name = $0;inner++;next }
+
+		/^background/ {
+			if((filter == 1 && luma($2) > 130) ||
+			   (filter == 2 && luma($2) <= 130))
+				next
+
+			candidates[name] = 1
+		}
+
+		END {
+			for(c in candidates) {
+				if(!mruIndex[c])
+					print(c)
+			}
+
+			for(i = 0;i < nmru;i++)
+				if(candidates[mru[i]])
+					print(mru[i])
+		}
+	' < "$0"
+}
+
+
+if [ -z "$1" ]; then
+	if [ -t 0 ]; then
+		echo "usage: $(basename "$0") [-v] [-h] <option>|<theme>"
+		exit 255
+	else
+		apply_theme
+		exit 0
+	fi
+fi
+
+case "$1" in
+	--dark|--light)
+		filterFlag=$1
+		shift
+		;;
+esac
+
+case "$1" in
+-h|--help)
+		cat << "!"
+usage: theme.sh [--light] | [--dark] <option> | <theme>
+
+  If <theme> is provided it will immediately be set. Otherwise --dark or
+  --light optionally act as filters on the supplied option. Theme history is
+  stored in ~/.theme_history or ($XDG_CONFIG_HOME/.theme_history if set) by
+  default and will be used for ordering the otherwise alphabetical theme list
+  in the relevant options (-l/-i/-i2).
+
+  E.G:
+    'theme.sh --dark -i'
+
+  will start an interactive selection of dark themes with the user's
+  most recently selected themes at the bottom of the list.
+
+  Theme definitions consistent with the internal format can also be piped
+  directly into the script.
+
+  E.G:
+
+  # theme.sh < input
+
+  Where input has the form:
+
+      0: #4d4d4d
+      1: #4d4d4d
+      ...
+      foreground: #dcdccc
+      background: #3f3f3f
+      cursor: #dcdccc
+
+OPTIONS
+  -l,--list                 Print all available themes.
+  -i,--interactive          Start the interactive selection mode (requires fzf).
+  -i2,--interactive2        Interactive mode #2. This shows the theme immediately
+                            instead of showing it in the preview window. Useful
+			    if your terminal does have TRUECOLOR support.
+  -r,--random               Set a random theme and print its name to stdout.
+  -a,--add <kitty config>   Annexes the given kitty config file.
+  -p,--print-theme          Attempt to read the current theme from the terminal
+                            and print it to stdout in a format consumable by theme.sh.
+                            NOTE: not all terminals support this option,
+		            do not rely on it in scripts.
+  -v,--version              Print the version and exit.
+
+SCRIPTING
+  If used from within a script, you will probably want to set
+  INHIBIT_THEME_HIST=1 to avoid mangling the user's theme history.
+!
+	;;
+-p|--print-theme)
+	print_current_theme
+	;;
+-i2|--interactive2)
+	command -v fzf > /dev/null 2>&1 || { echo "ERROR: -i requires fzf" >&2; exit 1; }
+	"$0" $filterFlag -l|fzf\
+		--tac\
+		--bind "enter:execute-silent($0 {})+accept"\
+		--bind "ctrl-c:execute($0 -l|tail -n1|xargs $0)+abort"\
+		--bind "esc:execute($0 {};echo {})+abort"\
+		--exact\
+		--no-sort\
+		--preview "$0 --preview2 {}"
+	;;
+-r|--random)
+	# Sort -R is not portable :/
+
+	theme=$($0 $filterFlag -l|awk '{a[n++]=$0};END{srand();print(a[int(rand()*n)])}')
+	$0 "$theme"
+	echo "Theme: $theme"
+	;;
+-i|--interactive)
+	command -v fzf > /dev/null 2>&1 || { echo "ERROR: -i requires fzf" >&2; exit 1; }
+	if ! isColorTerm; then
+		printf "WARNING: This does not appear to be a truecolor terminal, falling back to -i2
+         (use -i2 explicitly to get rid of this message or set COLORTERM)\n\n" >&2
+		"$0" $filterFlag -i2
+	else
+		"$0" $filterFlag -l|fzf\
+			--tac\
+			--exact\
+			--bind "ctrl-c:abort"\
+			--bind "esc:execute(echo {})+abort"\
+			--bind "enter:execute-silent($0 {})+accept"\
+			--no-sort\
+			--preview "$0 --preview {}"
+	fi
+	;;
+-l|--list)
+	list
+	;;
+-a|--add)
+	shift
+	add "$@"
+	;;
+--preview2)
+	preview2 "$2"
+	;;
+--preview)
+	preview "$2"
+	;;
+-v|--version)
+	echo "$VERSION (original source https://github.com/lemnos/theme.sh)"
+	;;
+*)
+	set_current_theme "$1"
+	;;
+esac
+
+exit $?
+
+# Themes start here (avoid editing by hand)
+
+ultramar-dark
+0: #33333a
+1: #b73030
+2: #6d974b
+3: #b2872f
+4: #3f6e90
+5: #9c6992
+6: #5b8277
+7: #b0afa8
+8: #676775
+9: #c45c5c
+10: #92b078
+11: #e2b55a
+12: #81acc1
+13: #b48ead
+14: #7fac96
+15: #faf6e5
+foreground: #fcf8e2
+background: #151517
+cursor: #ffffff
+
+ultramar-light
+0: #151517
+1: #b73030
+2: #6d974b
+3: #b2872f
+4: #3f6e90
+5: #9c6992
+6: #5b8277
+7: #91908d
+8: #33333a
+9: #c45c5c
+10: #92b078
+11: #e2b55a
+12: #75a2b8
+13: #b48ead
+14: #7fac96
+15: #b0afa8
+foreground: #1b1e25
+background: #faf6e5
+cursor: #000000
+