77 lines
2.4 KiB
Rust
77 lines
2.4 KiB
Rust
/*!
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Main program for `pacdef`. All internal logic happens in [`pacdef_core`].
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*/
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#![warn(
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clippy::as_conversions,
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clippy::option_if_let_else,
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clippy::redundant_pub_crate,
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clippy::semicolon_if_nothing_returned,
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clippy::unused_self,
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clippy::unwrap_used,
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clippy::use_debug,
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clippy::use_self,
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clippy::wildcard_dependencies,
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missing_docs
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)]
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use std::process::{ExitCode, Termination};
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use anyhow::{Context, Result};
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use pacdef_core::path::{get_config_path, get_config_path_old_version, get_group_dir};
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use pacdef_core::{get_args, Config, Group, Pacdef};
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fn main() -> ExitCode {
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handle_final_result(main_inner())
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}
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/// Skip printing the error chain when searching packages yields no results,
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/// otherwise report error chain.
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fn handle_final_result(result: Result<()>) -> ExitCode {
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match result {
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Ok(_) => ExitCode::SUCCESS,
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Err(ref e) => {
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let root_e = e.root_cause().downcast_ref();
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match root_e {
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Some(pacdef_core::Error::NoPackagesFound) => ExitCode::FAILURE,
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Some(_) => result.context("unknown pacdef error type").report(),
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None => result.report(),
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}
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}
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}
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}
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fn main_inner() -> Result<()> {
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let args = get_args();
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let config_file = get_config_path().context("getting config file")?;
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let config = Config::load(&config_file)
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.or_else(|_| {
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get_config_path_old_version()?
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.exists()
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.then(show_transition_link);
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let default = Config::default();
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default.save(&config_file)?;
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Ok::<Config, anyhow::Error>(default)
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})
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.context("loading config")?;
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let group_dir = get_group_dir().context("resolving group dir")?;
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let groups = Group::load(&group_dir, config.warn_not_symlinks)
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.with_context(|| format!("loading groups under {}", group_dir.to_string_lossy()))?;
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let pacdef = Pacdef::new(args, config, groups);
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pacdef.run_action_from_arg().context("running action")
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}
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fn show_transition_link() {
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println!("VERSION UPGRADE");
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println!("You seem to have used version 0.x of pacdef before.");
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println!("Version 1.x changes the syntax of the config files and the command line arguments.");
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println!("Check out https://github.com/steven-omaha/pacdef for new syntax information.");
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println!("This message will not appear again.");
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println!("------");
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}
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