116 lines
2.9 KiB
Rust
116 lines
2.9 KiB
Rust
use std::fmt::{Debug, Formatter, Error};
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use std::path::Path;
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use config::reader::from_file;
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use config::types::Config as Cfg;
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use cli::CliConfig;
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/**
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* Configuration object which represents the configuration file.
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*
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* It gets passed a CliConfig object on ::new(), retreives some data from this one which is then
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* provided as default value to the callee if there is no value for it in the configuration.
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*
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* TODO: Setup is kinda ugly, as we re-use data from the CLI, which is the job of the Runtime
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* object later.
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*/
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pub struct Configuration {
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pub rtp : String,
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pub store_sub : String,
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pub editor : Option<String>,
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pub editor_opts : String,
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}
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impl Configuration {
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pub fn new(config: &CliConfig) -> Configuration {
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let rtp = rtp_path(config).or(default_path()).unwrap_or(String::from("/tmp/"));
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let cfg = fetch_config(&rtp);
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let store_sub = String::from(cfg.lookup_str("store").unwrap_or("/store"));
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let editor = cfg.lookup_str("editor").map(String::from);
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let editor_opts = String::from(cfg.lookup_str("editor-opts").unwrap_or(""));
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debug!("Building configuration");
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debug!(" - store sub : {}", store_sub);
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debug!(" - runtimepath: {}", rtp);
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debug!(" - editor : {:?}", editor);
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debug!(" - editor-opts: {}", editor_opts);
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Configuration {
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store_sub: store_sub,
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rtp: rtp,
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editor: editor,
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editor_opts: editor_opts,
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}
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}
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/**
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* Get the store path the configuration configured
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*/
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pub fn store_path(&self) -> String {
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format!("{}{}", self.rtp, self.store_sub)
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}
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/**
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* Get the runtime path the configuration configured
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*/
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pub fn get_rtp(&self) -> String {
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self.rtp.clone()
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}
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pub fn editor(&self) -> Option<String> {
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self.editor.clone()
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}
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pub fn editor_opts(&self) -> String {
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self.editor_opts.clone()
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}
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}
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/**
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* Helper to get the runtimepath from the CLI
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*/
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fn rtp_path(config: &CliConfig) -> Option<String> {
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config.cli_matches.value_of("rtp")
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.and_then(|s| Some(String::from(s)))
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}
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fn fetch_config(rtp: &String) -> Cfg {
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use std::process::exit;
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let configpath = format!("{}{}", rtp, "/config");
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from_file(Path::new(&configpath)).map_err(|e| {
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println!("Error loading config at '{}' -> {:?}", configpath, e);
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println!("Exiting now.");
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exit(1)
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}).unwrap()
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}
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/**
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* Default runtime path, if available.
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*/
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fn default_path() -> Option<String> {
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use std::env::home_dir;
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home_dir().and_then(|mut buf| {
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buf.push("/.imag");
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buf.to_str().map(|s| String::from(s))
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})
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}
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impl Debug for Configuration {
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
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write!(f, "Configuration (rtp: {}, store path: {})",
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self.get_rtp(),
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self.store_path()
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)
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}
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}
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