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|
use std::path::PathBuf;
use just_fmt::snake_case;
use just_template::{Template, tmpl};
const EXAMPLE_ROOT: &str = "./examples/";
const OUTPUT_PATH: &str = "./mingling/src/example_docs.rs";
const TEMPLATE_CONTENT: &str = include_str!("../../../mingling/src/example_docs.rs.tmpl");
struct ExampleContent {
name: String,
header: String,
code: String,
cargo_toml: String,
}
impl ExampleContent {
pub fn read(name: &str) -> Self {
let repo = find_git_repo().unwrap();
let cargo_toml = Self::read_cargo_toml(&repo, name);
let (header, code) = Self::read_header_and_code(&repo, name);
let cargo_toml = cargo_toml
.lines()
.map(|line| format!("/// {}", line))
.collect::<Vec<_>>()
.join("\n");
let header = header
.lines()
.map(|line| format!("/// {}", line))
.collect::<Vec<_>>()
.join("\n");
let code = code
.lines()
.map(|line| format!("/// {}", line))
.collect::<Vec<_>>()
.join("\n");
ExampleContent {
name: name.to_string(),
header,
code,
cargo_toml,
}
}
fn read_header_and_code(repo: &PathBuf, name: &str) -> (String, String) {
let file_path = repo
.join(EXAMPLE_ROOT)
.join(name)
.join("src")
.join("main.rs");
let content = std::fs::read_to_string(&file_path).unwrap_or_default();
let mut lines = content.lines();
let mut header = String::new();
let mut code = String::new();
// Collect header lines (starting with //!)
while let Some(line) = lines.next() {
if line.trim_start().starts_with("//!") {
let trimmed = line.trim_start_matches("//!").trim();
header.push_str(trimmed);
header.push('\n');
} else {
// First non-header line found, start collecting code
code.push_str(line);
code.push('\n');
break;
}
}
// Collect remaining code lines
for line in lines {
code.push_str(line);
code.push('\n');
}
(header.trim().to_string(), code.trim().to_string())
}
fn read_cargo_toml(repo: &PathBuf, name: &str) -> String {
let file_path = repo.join(EXAMPLE_ROOT).join(name).join("Cargo.toml");
let content = std::fs::read_to_string(&file_path).unwrap_or_default();
content
}
}
fn main() {
let mut template = Template::from(TEMPLATE_CONTENT);
let repo_root = find_git_repo().unwrap();
let example_root = repo_root.join(EXAMPLE_ROOT);
let mut examples = Vec::new();
if let Ok(entries) = std::fs::read_dir(&example_root) {
for entry in entries.flatten() {
if let Ok(file_type) = entry.file_type() {
if file_type.is_dir() {
let example_name = entry.file_name().to_string_lossy().to_string();
let example_content = ExampleContent::read(&example_name);
examples.push(example_content);
}
}
}
}
for example in examples {
tmpl!(template += {
examples {
(
example_header = example.header,
example_import = example.cargo_toml,
example_code = example.code,
example_name = snake_case!(example.name)
)
}
});
}
std::fs::write(repo_root.join(OUTPUT_PATH), template.to_string()).unwrap();
}
fn find_git_repo() -> Option<std::path::PathBuf> {
let mut current_dir = std::env::current_dir().ok()?;
loop {
let git_dir = current_dir.join(".git");
if git_dir.exists() && git_dir.is_dir() {
return Some(current_dir);
}
if !current_dir.pop() {
break;
}
}
None
}
|
