mirror of
https://github.com/philmmanjaro/alma.git
synced 2025-07-26 15:09:29 +02:00
490ab30f4c
Status: WIP Completed: * Fixed flagged clippy lints * Moved qemu(), main.rs::mount() and chroot() to the tools module. * Moved constants in main.rs to constants.rs (including base packages array) * Renamed Presets struct to PresetsCollection to avoid confusion with Preset struct * Moved main() to the top of main.rs to highlight general logic path * Added comments and docstrings to some functions * Removed some uses of `use foo::*` to make the source of imported functions and structs clearer TODO: * Move remaining code in main.rs to modules (except main()) * Break up create() function in to separate steps * Log every command run (with arguments) to debug! when verbose flag is used * Add docstrings for remaining functions and document constants (e.g. why noatime is used) * Remove remaining uses of `use foo::*` * Consider renaming/moving tools module to address tool:: vs. Tool:: confusion
66 lines
1.9 KiB
Rust
66 lines
1.9 KiB
Rust
use crate::error::{Error, ErrorKind};
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use failure::ResultExt;
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use serde::Deserialize;
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use std::collections::HashSet;
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use std::env;
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use std::fs;
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use std::path::{Path, PathBuf};
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#[derive(Deserialize)]
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struct Preset {
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packages: Option<Vec<String>>,
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script: Option<String>,
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environment_variables: Option<Vec<String>>,
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}
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impl Preset {
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fn load(path: &Path) -> Result<Self, Error> {
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let data = fs::read_to_string(path)
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.with_context(|_| ErrorKind::Preset(format!("{}", path.display())))?;
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Ok(toml::from_str(&data)
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.with_context(|_| ErrorKind::Preset(format!("{}", path.display())))?)
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}
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}
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pub struct PresetsCollection {
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pub packages: HashSet<String>,
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pub scripts: Vec<String>,
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}
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impl PresetsCollection {
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pub fn load(list: &[PathBuf]) -> Result<Self, Error> {
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let mut packages = HashSet::new();
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let mut scripts = Vec::new();
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let mut environment_variables = HashSet::new();
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for preset in list {
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let Preset {
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script,
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packages: preset_packages,
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environment_variables: preset_environment_variables,
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} = Preset::load(&preset)?;
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if let Some(preset_packages) = preset_packages {
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packages.extend(preset_packages);
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}
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if let Some(preset_environment_variables) = preset_environment_variables {
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environment_variables.extend(preset_environment_variables);
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}
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scripts.extend(script);
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}
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let missing_envrionments: Vec<String> = environment_variables
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.into_iter()
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.filter(|var| env::var(var).is_err())
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.collect();
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if !missing_envrionments.is_empty() {
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return Err(ErrorKind::MissingEnvironmentVariables(missing_envrionments).into());
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}
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Ok(Self { packages, scripts })
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}
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}
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