graftfs 0.2.0

A Rust implementation of the GNU stow utility for managing dotfiles. It is a symlink farm manager that takes separate packages of software and/or data and makes them appear to be installed in the same place. Features include stow, delete, and restow operations, simulation mode, directory folding, and regex-based ignore/override patterns.
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/*
 * graftfs
 * Copyright (C) 2026 Chris Tisdale
 *
 * 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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/>.
 */

use serde::{Deserialize, Serialize};
use std::fmt::Display;
use std::path::PathBuf;

#[derive(Debug, Serialize, Deserialize, Eq, PartialEq, Hash, Ord, PartialOrd)]
pub struct Overrides {
    #[serde(default = "default_override_file")]
    pub file: PathBuf,
    #[serde(default = "default_comment")]
    pub comment: char,
}

impl Display for Overrides {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(
            f,
            "Overrides {{ file: {}, comment: '{}' }}",
            self.file.display(),
            self.comment
        )
    }
}

impl Default for Overrides {
    fn default() -> Self {
        Self {
            file: default_override_file(),
            comment: default_comment(),
        }
    }
}

const fn default_comment() -> char {
    '#'
}

fn default_override_file() -> PathBuf {
    PathBuf::from(concat!(".", env!("CARGO_BIN_NAME"), "-overrides"))
}