kittv
/
prezgen
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Rust

use deunicode::deunicode;
use structopt::StructOpt;
use toml::Value;
//use std::collections::hash_map::DefaultHasher;
use std::fs::{create_dir, read_to_string, write};
use std::path::PathBuf;
#[derive(StructOpt, Debug)]
/// structure representing command line arguments
struct Opt {
#[structopt(name = "FILE")]
/// The input file.
/// It contains all the settings related to substitution
toml: PathBuf,
#[structopt(short, long, default_value = "output")]
/// Output directory.
output: PathBuf,
#[structopt(short, long)]
/// Template to be processed.
/// if a directory, then all the unspecified
/// files will be copied to the output as well.
template: PathBuf,
}
/// replaces {{ value }} with actual value
fn replace(mut template: String, rules: &[(String, String)]) -> String {
for (x, y) in rules {
let l = format!("{{{{ {} }}}}", x);
template = template.replace(&l, y)
}
template
}
/// collects table into a vector of String pairs
fn collect_table(table: &Value) -> Vec<(String, String)> {
table
.as_table()
.unwrap()
.keys()
.map(|x| (x.clone(), String::from(table[x].as_str().unwrap())))
.collect()
}
fn main() {
// parse command line arguments
let opt = Opt::from_args();
//println!("{:?}", opt);
// parse toml
let mut value = read_to_string(&opt.toml).unwrap().parse::<Value>().unwrap();
//println!("{:#?}", value);
// create output directory
// if it doesn't exist
if !opt.output.exists() {
create_dir(&opt.output).unwrap();
}
// read template
let input = read_to_string(
&[opt.template, PathBuf::from("front.html")]
.iter()
.collect::<PathBuf>(),
)
.unwrap();
// create rules
// hope to god the toml is correctly formatted
// start with removing page rules
let page = value
.as_table_mut()
.unwrap()
.remove("page")
.unwrap()
.clone();
// collect global rules into a vec
let global = collect_table(&value);
// iterate over pages
for (index, value) in page.as_array().unwrap().iter().enumerate() {
// add global variables to table
let mut table = collect_table(&value);
table.extend(global.clone());
// TODO make this less of a pain
let content = replace(input.clone(), table.as_slice());
// create the files
let (code, day, time_start) = (
value["code"].as_str().unwrap(),
value["day"].as_str().unwrap(),
value["time_start"].as_str().unwrap(),
);
// tweaks
// day
let mut day = String::from(day);
day = deunicode(&day).to_uppercase();
// time_start
let mut time_start = String::from(time_start);
time_start = time_start.replace(":", "");
// code
let code = String::from(code).replace(" ", "-");
let target = format!("PREZ_{}_{}_{}.html", code, &day[0..2], time_start);
println!("writing {}", target);
write(
&[&opt.output, &PathBuf::from(target)]
.iter()
.collect::<PathBuf>(),
content,
)
.unwrap();
}
//println!("{:#?}", global);
}