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build.rs
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build.rs
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use serde::Deserialize;
use std::collections::HashMap;
use std::env;
use std::error::Error;
use std::fs;
use std::path::{Path, PathBuf};
#[derive(Deserialize)]
struct NickData {
names_by_nick_prefix: HashMap<String, Vec<String>>,
names_by_irregular_nick: HashMap<String, Vec<String>>,
}
#[derive(Deserialize)]
struct TitleData {
honorific_prefixes: HashMap<String, String>,
honorific_suffixes: HashMap<String, String>,
}
#[derive(Deserialize)]
struct NameData {
two_letter_given_names: Vec<String>,
uncapitalized_particles: Vec<String>,
additional_surname_prefixes: Vec<String>,
}
#[derive(Deserialize)]
struct GenerationData {
generation_by_suffix: HashMap<String, u8>,
}
type Result<T> = std::result::Result<T, Box<dyn Error>>;
fn main() -> Result<()> {
let input = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
let output = PathBuf::from(env::var("OUT_DIR").unwrap());
let json = read_file(&input, "build/nick_data.json")?;
let nicks: NickData = serde_json::from_str(&json)?;
write_map(
&output.join("names_by_nick_prefix.rs"),
&nicks.names_by_nick_prefix,
|vs| format!("&[{}] as &[_]", quoted_comma_separated(vs)),
)?;
write_map(
&output.join("names_by_irregular_nick.rs"),
&nicks.names_by_irregular_nick,
|vs| format!("&[{}] as &[_]", quoted_comma_separated(vs)),
)?;
let json = read_file(&input, "build/title_data.json")?;
let titles: TitleData = serde_json::from_str(&json)?;
write_map(
&output.join("honorific_prefixes.rs"),
&titles.honorific_prefixes,
|v| format!("\"{}\"", v),
)?;
write_map(
&output.join("honorific_suffixes.rs"),
&titles.honorific_suffixes,
|v| format!("\"{}\"", v),
)?;
let json = read_file(&input, "build/name_data.json")?;
let names: NameData = serde_json::from_str(&json)?;
let two_letter_given_names = names
.two_letter_given_names
.iter()
.flat_map(|n| [n.clone(), n.to_uppercase(), n.to_lowercase()])
.collect::<Vec<_>>();
write_set(
&output.join("two_letter_given_names.rs"),
&two_letter_given_names,
)?;
// Store capitalized versions because we check after doing the initial,
// naive capitalization; use a simple capitalization algorithm here
// because we know the data is all simple.
let capitalized_uncapitalized_particles = names
.uncapitalized_particles
.iter()
.map(|n| format!("{}{}", n[..1].to_uppercase(), &n[1..]))
.collect::<Vec<String>>();
let mut particles_and_conjunctions = capitalized_uncapitalized_particles.clone();
particles_and_conjunctions.push("E".to_string());
particles_and_conjunctions.push("Y".to_string());
write_set(
&output.join("particles_and_conjunctions.rs"),
&particles_and_conjunctions,
)?;
let mut surname_prefixes = names.uncapitalized_particles.clone();
surname_prefixes.extend_from_slice(capitalized_uncapitalized_particles.as_slice());
surname_prefixes.extend_from_slice(names.additional_surname_prefixes.as_slice());
write_set(&output.join("surname_prefixes.rs"), &surname_prefixes)?;
let json = read_file(&input, "build/generation_data.json")?;
let gens: GenerationData = serde_json::from_str(&json)?;
let generation_by_suffix = gens
.generation_by_suffix
.iter()
.flat_map(|(k, v)| [(k.clone(), v), (k.to_uppercase(), v), (k.to_lowercase(), v)])
.collect::<HashMap<_, _>>();
write_map(
&output.join("generation_by_suffix.rs"),
&generation_by_suffix,
|v| v.to_string(),
)?;
Ok(())
}
fn write_map<'a, K, V, F>(output: &Path, map: &'a HashMap<K, V>, transform: F) -> Result<()>
where
K: std::ops::Deref<Target = str>,
F: Fn(&'a V) -> String,
{
let mut builder = phf_codegen::Map::new();
for (k, v) in map {
builder.entry(k.to_string(), &transform(v));
}
fs::write(output, format!("{}", builder.build()))?;
Ok(())
}
fn write_set(output: &Path, set: &[String]) -> Result<()> {
let mut builder = phf_codegen::Set::new();
for v in set {
builder.entry(v);
}
fs::write(output, format!("{}", builder.build()))?;
Ok(())
}
fn read_file(input_dir: &Path, file_path: &str) -> Result<String> {
println!("cargo:rerun-if-changed={}", file_path);
let s = fs::read_to_string(input_dir.join(file_path))?;
Ok(s)
}
fn quoted_comma_separated(vs: &[String]) -> String {
vs.iter()
.map(|v| format!("\"{}\"", v))
.collect::<Vec<_>>()
.join(", ")
}