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extern crate walkdir;
use config;
use std::env;
use std::path;
use std::ffi::OsStr;
use walkdir::WalkDir;
pub struct Command<'a> {
pub identifier: String,
pub args: &'a [String],
}
impl<'a> Command<'a> {
pub fn new (args: &[String])
-> Result<Command, &'static str> {
if args.len() < 2 {
return Err("Not enough arguments");
}
let identifier = args[1].clone();
let args = &args[2..];
Ok(Command { identifier, args })
}
pub fn clone (&self)
-> Command {
Command {
identifier: self.identifier.clone(),
args: self.args.clone()
}
}
}
pub fn verify_command (command: Command, config: config::Config)
-> Result<String, String> {
let commands =
config.get_table("commands")
.unwrap();
let exec_path = commands.get (&command.identifier);
let exec_path = match exec_path {
Some(exec_path) => exec_path.clone().into_str(),
None => return Err(
format!("'{}' is not a valid command.",
&command.identifier)),
};
Ok(exec_path.unwrap())
}
pub fn find_and_verify_config_files ()
-> Result<path::PathBuf, &'static str> {
let mut no_conf_files = 0;
let formats = [".yml", ".json", ".toml"];
let mut current_dir = env::current_dir().unwrap();
while no_conf_files == 0
&& current_dir != path::PathBuf::from("/") {
for entry in WalkDir::new(&(current_dir.to_string_lossy().to_string()))
.max_depth(1)
{
let entry = entry.unwrap();
for format in &formats {
if entry.file_name()
== OsStr::new(&(".jarvis".to_owned() + format)) {
no_conf_files += 1;
current_dir.push(".jarvis".to_owned() + format);
}
}
}
if no_conf_files == 0 {
current_dir.pop();
}
}
if no_conf_files == 0 {
return Err("No config file found in current project.
Please provide a '.jarvis.{yml|json|toml}' file in your project root.");
} else if no_conf_files > 1 {
return Err("Too many config files found in current project.
Please remove all '.jarvis.{yml|json|toml}' files but one.");
}
Ok(current_dir)
}