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dotfiles/bin/.local/bin/jnew
2025-11-01 11:51:41 -04:00

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#!/bin/sh
# vx.jnew - Create a java project
#
# FEATURES:
# - Generate single-file project
#
# COMPILATION (Linux - POSIX):
# ./jnew
#
#
# LICENSE: BSD-3-Clause
#
# Copyright (c) 2025 VX
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
me=$0
scriptversion="1.0.0"
version="$me $scriptversion
Copyright (C) 2025 VX.
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law."
usage="\
Usage: $me [project] [OPTION]...
Generate a java project
Options:
--class generate a class only file
--help print this help and exit
--version output version information"
classonly=false
classname=
while [ $# -gt 0 ]; do
case $1 in
--help)
echo "$usage"
exit 0
;;
--version)
echo "$version"
exit 0
;;
--class)
classonly=true
;;
-*)
echo "$me: unknown option '$1'" >&2
echo "Try '$me --help' for more information." >&2
exit 1
;;
*)
classname=$1
;;
esac
shift
done
if [ -z "$classname" ]; then
echo "$me: missing project name" >&2
echo "Try '$me --help' for more information." >&2
exit 1
fi
firstchar=$(printf '%s' "$classname" | cut -c1 | tr '[:lower:]' '[:upper:]')
restchars=$(printf '%s' "$classname" | cut -c2-)
classname="${firstchar}${restchars}"
file="${classname}.java"
if [ -e "$file" ]; then
echo "$me: file '$file' already exists" >&2
exit 1
fi
cat <<EOF >"$file"
/*
* Short description
*
* Author: Owen Westness <vx-clutch>
* Date: $(date +"%B %d, %Y")
* License: MIT
*/
public class $classname {
EOF
if $classonly; then
cat <<EOF >>"$file"
public $classname() {
// Your code here...
}
EOF
else
cat <<EOF >>"$file"
public static void main(String[] args) {
// Your code here...
}
EOF
fi
printf '}\n' >>"$file"
echo "Created $file"
# End: jnew