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// This file is part of Chorus <https://github.com/Fuwn/chorus>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
use std::{io::Write, path::PathBuf};
use anyhow::Context;
use crate::file_generator;
/// A wrapper of `std::fs::File::create` and `write!` which creates, writes, and
/// error checks a file given a base path and file name.
macro_rules! write_new_file {
($path:ident, $filepath:expr, $content:expr) => {{
// Save the file path for later use
let file =
format!("{}{}", format!("{}/", $path.as_path().display()), $filepath);
// Create and write to the new file with error handling
write!(
&mut std::fs::File::create(&file)
.with_context(|| format!("could not create file: \"{}\"", file))?,
"{}",
$content,
)
.with_context(|| format!("could not write to file: \"{}\"", file))?;
}};
}
#[macro_export]
/// A wrapper of `std::fs::create_dir_all` which creates and error checks a
/// directory given a base path and directory name.
macro_rules! create_directory {
($path:ident, $directory_path:expr) => {{
// Save the directory path for later use
let directory = format!(
"{}{}",
format!("{}/", $path.as_path().display()),
$directory_path
);
// Create the new directory with error handling
std::fs::create_dir(&directory).with_context(|| {
format!("could not create directory: \"{}\"", directory)
})?;
}};
($directory_path:expr) => {{
// Create the new directory with error handling
std::fs::create_dir(&$directory_path).with_context(|| {
format!("could not create directory: \"{}\"", $directory_path)
})?;
}};
}
/// Initialise or create a new Chorus package
pub fn init_new(path: &Option<PathBuf>, init: bool) -> anyhow::Result<()> {
let our_path = path.clone().unwrap_or_else(|| PathBuf::from("."));
crate::utilities::is_unicode_xid(&our_path.display().to_string())?;
// Make sure that we are not initialing a new Chorus project in a non-empty
// directory.
if init && our_path.exists() && our_path.read_dir()?.next().is_some() {
return Err(anyhow::anyhow!(
"target directory \"{}\" is not empty",
our_path.as_path().display()
));
}
// Set up the new Chorus package with the default file structure of a Chorus
// package.
create_directory!(our_path, "");
create_directory!(our_path, "src");
write_new_file!(
our_path,
"src/main.cbl",
file_generator::main_file(&our_path)?
);
write_new_file!(
our_path,
"package.toml",
file_generator::package_manifest(&our_path)?
);
Ok(())
}
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