9a

#!/usr/bin/env sh
# launch script for plan9port's Acme text editor

if [ -z "$PLAN9" ] && command -v 9 >/dev/null 2>&1; then
	export PLAN9="$(9 sh -c 'echo $PLAN9')"
	[ ! -z "$PLAN9" ] && export PATH=$PATH:$PLAN9/bin
fi
if [ -z "$PLAN9" ]; then
	echo "error: PLAN9 not defined, was plan9port installed?" 1>&2
	exit 1
fi

# Run acme via absolute path, in case there is another acme in the PATH.
acme="$PLAN9/bin/acme"
if [ ! -x "$acme" ]; then
	echo "error: $acme not found, was plan9port installed?" 1>&2
	exit 1
fi

usage() {
	echo "usage: $0 [-fi9] [-c ncol] [-t tab_stop] [file ...]" 1>&$1
	echo "Launch the Acme text editor." 1>&$1
	echo "Use -f to have a proportional font as the primary font." 1>&$1
	# -i option implemented by https://github.com/ixtenu/plan9port/commit/6146ab0734c5
	echo "Use -i to enable Spaces ON at start up (requires patched Acme)." 1>&$1
	echo "Use -9 to put \$PLAN9/bin at the front of \$PATH." 1>&$1
	echo "Use -c ncol to set the initial number of columns (default 2)." 1>&$1
	echo "Use -t tab_stop to customize distance between tab stops (default 4)." 1>&$1
	exit $(($1 - 1))
}

tabstop=4
fopt=0
nine=
aopts="-a" # always run with -a (equivalent to executing "Indent ON")
ncol=2
while getopts fi9c:t:h name; do
	case $name in
	f) fopt=1;;
	i) aopts="$aopts -i";;
	9) nine='9';;
	c) ncol=$OPTARG;;
	t) tabstop=$OPTARG;;
	h) usage 1;;
	?) usage 2;;
	esac
done
shift $(($OPTIND - 1))
aopts="$aopts -c $ncol"

# add the directory containing this script to the PATH so that other
# Acme-specific scripts in the same directory will be available within Acme
bindir="$(cd -- "$(dirname $(readlink -f "$0"))" >/dev/null 2>&1 && pwd -P)"
export PATH="$bindir:$PATH"

# rc is Plan 9's shell
export SHELL=rc
export acmeshell=rc
# distance between tab stops (set above)
export tabstop
# Acme's win terminal doesn't do colors, bold, etc.
export TERM=dumb
export CLICOLOR=0
export NO_COLOR=1
# nobs removes backspaces from man pages
export PAGER=nobs
# E opens in Acme and waits for Put.  If git config core.editor is unset,
# this suffices for git commit to open an Acme window.
export EDITOR=E

browsers='librewolf firefox brave netsurf netsurf-gtk'
for b in $browsers; do
	if command -v $b >/dev/null 2>&1; then
		export BROWSER=$b
		break
	fi
done

if [ ! "$(pgrep '^plumber$')" ]; then
	echo starting plumber
	"$PLAN9"/bin/plumber
fi

# Preferred proportional and monospace fonts.  Note that Acme will fail to
# launch if its primary font isn't available.
#
# To review the available fonts:
# fontsrv &
# 9p ls font | less
# fg
# ^C
#
# Default to fonts which are available out-of-the-box on common Linux distros.
font_prop='/mnt/font/LiberationSans/13a/font'
font_mono='/mnt/font/Hack-Regular/11a/font'

# Use Cascadia Code as the monospace font, if available.
if command -v fc-list >/dev/null 2>&1; then
	if fc-list | grep -q 'CascadiaCode-Regular\.ttf'; then
		font_mono='/mnt/font/CascadiaCode-Regular/12a/font'
	fi
fi

if [ $fopt -eq 0 ]; then
	# By default, use a monospace font as the primary font and a
	# proportional font as the secondary font: the reverse of the usual
	# convention for Acme.  I do this because I work on projects which
	# (unfortunately) make heavy use of spaces for alignment and that
	# requires a monospace font to display correctly.
	font1=$font_mono
	font2=$font_prop
else
	font1=$font_prop
	font2=$font_mono
fi

files="$@"

# always open $HOME/bookmark, if it exists
if [ -r "$HOME/bookmark" ]; then
	if [ -z "$files" ]; then
		# open $PWD as Acme does by default when no files are given
		files="$(readlink -f "$PWD")"
	fi
	files="$files $(readlink -f "$HOME/bookmark")"
fi

# Suppress error messages (might want to remove this for debugging).
$nine $acme $aopts -f $font1 -F $font2 $files 2>/dev/null &