espanso/espanso-migrate/src/load.rs

128 lines
3.9 KiB
Rust

/*
* This file is part of espanso.
*
* Copyright (C) 2019-2021 Federico Terzi
*
* espanso 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.
*
* espanso 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 espanso. If not, see <https://www.gnu.org/licenses/>.
*/
use anyhow::Result;
use path_slash::PathExt;
use std::{collections::HashMap, path::Path};
use thiserror::Error;
use walkdir::WalkDir;
use yaml_rust::{yaml::Hash, Yaml, YamlLoader};
pub fn load(config_dir: &Path) -> Result<HashMap<String, Hash>> {
if !config_dir.is_dir() {
return Err(LoadError::NotDirectory.into());
}
let mut input_files = HashMap::new();
for entry in WalkDir::new(config_dir) {
match entry {
Ok(entry) => {
// Skip directories
if entry.path().is_dir() {
continue;
}
// Skip non-yaml files
let extension = entry
.path()
.extension()
.map(|s| s.to_string_lossy().to_ascii_lowercase())
.unwrap_or_default();
if extension != "yaml" && extension != "yml" {
continue;
}
match entry.path().strip_prefix(config_dir) {
Ok(relative_path) => {
let corrected_path = relative_path.to_slash_lossy();
if corrected_path.is_empty() {
continue;
}
match std::fs::read_to_string(entry.path()) {
Ok(content) => {
// Empty files are not valid YAML, but we want to handle them anyway
if content.trim().is_empty() {
input_files.insert(corrected_path, Hash::new());
} else {
match YamlLoader::load_from_str(&content) {
Ok(mut yaml) => {
if !yaml.is_empty() {
let yaml = yaml.remove(0);
if let Yaml::Hash(hash) = yaml {
input_files.insert(corrected_path, hash);
} else {
eprintln!(
"yaml file does not have a valid format: {}",
entry.path().display()
);
}
} else {
eprintln!(
"error, found empty document while reading entry: {}",
entry.path().display()
);
}
}
Err(err) => {
eprintln!(
"experienced error while parsing file: {}, error: {}",
entry.path().display(),
err
);
}
}
}
}
Err(err) => {
eprintln!(
"error while reading entry: {}, error: {}",
entry.path().display(),
err
);
}
}
}
Err(err) => {
eprintln!(
"error while analyzing entry: {}, error: {}",
entry.path().display(),
err
);
}
}
}
Err(err) => {
eprintln!("experienced error while reading entry: {}", err)
}
}
}
Ok(input_files)
}
#[derive(Error, Debug)]
pub enum LoadError {
#[error("the provided legacy_config_dir is not a directory")]
NotDirectory,
}