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#![feature(with_options)]
use toml_edit::{Document, value};
use std::fs::{read_to_string, File};
use ansi_term::*;
use std::process::exit;
use std::io::Write;
use std::collections::HashMap;
pub struct Program {
name: &'static str,
author: &'static str,
dependencies: HashMap<&'static str, &'static str>,
version: &'static str
}
impl Program {
pub fn new() -> Program {
Program {
name: "placeholder name",
author: "placeholder name",
version: "plaeceholder",
dependencies: HashMap::new()
}
}
pub fn author(mut self ,author: &'static str) -> Self{
info("Author name is");
info(author);
self.author = author;
self
}
pub fn version(mut self, version: &'static str) -> Self{
info("Package Version is");
info(version);
self.version = version;
self
}
pub fn check(&self) {
if self.name == "placeholder name" || self.author == "placeholder name" || self.version == "placeholder" {
error(" Missing required fields. Name, Author and Version are required in spec.rs");
}
}
pub fn name( mut self,name: &'static str) -> Self{
info("Package name is");
info(name);
self.name = name;
self
}
pub fn dependencie(mut self, name: &'static str, version: &'static str) -> Self {
info("Dependencie");
info(name);
info("With version");
info(version);
self.dependencies.insert(name, version);
self
}
pub fn gen(self) {
good("Generating....");
self.check();
let cargo_toml = read_to_string("Cargo.toml");
if let Result::Ok(cargo_toml) = cargo_toml {
let cargo_toml_doc = cargo_toml.parse::<Document>();
if let Ok( mut tomlspec) = cargo_toml_doc {
tomlspec["package"]["name"] = value(self.name);
tomlspec["package"]["author"] = value(self.author);
tomlspec["package"]["version"] = value(self.version);
for dep in self.dependencies {
tomlspec["dependencies"][dep.0] = value(dep.1)
}
let mut cargo_file = File::with_options().write(true).open("Cargo.toml")
.expect("Fatal error. Cargo toml not found. This is probably a bug. Please report it on github.");
cargo_file.write(tomlspec.to_string().as_bytes()).expect("Cargo.toml erorr");
}
} else {
error(" Previous Cargo.toml is invalid. Run cargo check to see the mistakes")
}
}
}
fn info (reason: &str) {
eprintln!("{} {}", ansi_term::Color::Blue.bold().paint("Info:"), Color::Cyan.paint(reason) );
}
fn good (reason: &str) {
eprintln!("{} {}", ansi_term::Color::Green.bold().paint("Good news!"), Color::Cyan.paint(reason) );
}
fn error (reason: &str) {
eprintln!("{}: {}", ansi_term::Color::Red.bold().paint("Whoops an error has occured"), Color::Cyan.paint(reason) );
exit(1);
}