home/.vim/templates/=template=.bash

149 lines
3.0 KiB
Bash

#! /bin/bash
#
# %FILE%
# Copyright (C) %YEAR% %USER% <%MAIL%>
#
# Distributed under terms of the %LICENSE% license.
#
set -e
# Read-only set-once variables
declare -r _name="$(basename -- "$0")"
# Options
declare -a _config=(
[foo]="bar"
[baz]="bop"
)
declare _optconfigfile="${XDG_CONFIG_HOME:-$HOME/.config}/${_name}.conf"
declare -i _opthelp
declare -i _optverbose
# Working variables
declare -a _args
declare _return
# Helper functions
log() {
# Print a line to the terminal if _optverbose is greater than $2
# $2 defaults to 0
# loglevel 0: Daily-use messages
# loglevel 1: Detailed but not quite debugging
# loglevel 2: Definitely debugging
[ -z "$1" ] && return 1
if (( _optverbose >= ${2:-0} )); then
printf "%s\\n" "$1"
fi
}
warn() {
# Print a yellow line to the terminal, respecting _optverbose
[ -z "$1" ] && return 1
if (( _optverbose >= ${2:-0} )); then
if [ -t 1 ]; then
printf "\\e[33m%s\\e[0m\\n" "$1"
else
printf "WARN: %s\\n" "$1"
fi
fi
}
error() {
# Print a red line to the terminal, exit if $2 is specified
[ -z "$1" ] && return 1
if [ -t 2 ]; then
printf "\\e[31m%s\\e[0m\\n" "$1" 1>&2
else
printf "ERROR: %s\\n" "$1" 1>&2
fi
[ -z "$2" ] && return
exit "${2:-1}"
}
has() {
# Parse out all arguments and try to find them in path
# If an argument cannot be found, set _return and fail
for prog in "$@"; do
if ! command -v "$prog" > /dev/null 2>&1; then
_return="$prog"
return 1
fi
done
return 0
}
# Core program functions
printhelp() {
cat << EOF
Usage: $_name [OPTION]...
-c [FILE] Load the given file in place of the usual config file
-h Print this help text
-v Print more status messages. Stacks
Copyright (c) %YEAR% %MAIL%
Licensed under the %LICENSE% license
EOF
}
# Main
main() {
# Parse out arguments
while [ -n "$1" ]; do
# Parse out flags
while getopts ":chv" opt; do
case $opt in
c)
_optconfigfile="$OPTARG"
;;
h)
_opthelp=1
;;
v)
_optverbose+=1
;;
:)
error "Option requires argument: -$OPTARG" 2
;;
*)
error "Invalid option: -$OPTARG" 2
;;
esac
done
# Store arguments
shift $((OPTIND - 1))
if [ -n "$1" ]; then
_args+=("$1")
shift
fi
unset OPTIND
done
# Early hook for help
[ -n "$_opthelp" ] && printhelp && exit 0
# Parse out a config file if it exists
if [ -f "$_optconfigfile" ]; then
log "Loading config file" 2
while read line; do
# If the line has an equals sign and isn't a comment
if [ "$line" != "${line#*=}" ] && validateline "$line"; then
local key="${line%=*}"
local value="${line#*=}"
_config[$key]="$value"
log "Setting $key to $value" 2
fi
done < "$_optconfigfile"
else
warn "Could not find configuration file" 2
fi
# Validate critical options
# TODO: That
# Validate core program dependencies
log "Validating dependencies" 2
if ! has basename; then
error "Failed to find program: $_return" 1
fi
# Do the do
# TODO: The do
warn "Nothing to do"
exit 0
}
main "$@"