zola/src/cmd/init.rs
2020-12-14 20:43:31 +01:00

293 lines
10 KiB
Rust

use std::fs::{canonicalize, create_dir};
use std::path::Path;
use std::path::PathBuf;
use errors::{bail, Result};
use utils::fs::create_file;
use crate::console;
use crate::prompt::{ask_bool, ask_url};
const CONFIG: &str = r#"
# The URL the site will be built for
base_url = "%BASE_URL%"
# Whether to automatically compile all Sass files in the sass directory
compile_sass = %COMPILE_SASS%
# Whether to build a search index to be used later on by a JavaScript library
build_search_index = %SEARCH%
[markdown]
# Whether to do syntax highlighting
# Theme can be customised by setting the `highlight_theme` variable to a theme supported by Zola
highlight_code = %HIGHLIGHT%
[extra]
# Put all your custom variables here
"#;
// canonicalize(path) function on windows system returns a path with UNC.
// Example: \\?\C:\Users\VssAdministrator\AppData\Local\Temp\new_project
// More details on Universal Naming Convention (UNC):
// https://en.wikipedia.org/wiki/Path_(computing)#Uniform_Naming_Convention
// So the following const will be used to remove the network part of the UNC to display users a more common
// path on windows systems.
// This is a workaround until this issue https://github.com/rust-lang/rust/issues/42869 was fixed.
const LOCAL_UNC: &str = "\\\\?\\";
// Given a path, return true if it is a directory and it doesn't have any
// non-hidden files, otherwise return false (path is assumed to exist)
pub fn is_directory_quasi_empty(path: &Path) -> Result<bool> {
if path.is_dir() {
let mut entries = match path.read_dir() {
Ok(entries) => entries,
Err(e) => {
bail!(
"Could not read `{}` because of error: {}",
path.to_string_lossy().to_string(),
e
);
}
};
// If any entry raises an error or isn't hidden (i.e. starts with `.`), we raise an error
if entries.any(|x| match x {
Ok(file) => !file
.file_name()
.to_str()
.expect("Could not convert filename to &str")
.starts_with('.'),
Err(_) => true,
}) {
return Ok(false);
}
return Ok(true);
}
Ok(false)
}
// Remove the unc part of a windows path
fn strip_unc(path: &PathBuf) -> String {
let path_to_refine = path.to_str().unwrap();
path_to_refine.trim_start_matches(LOCAL_UNC).to_string()
}
pub fn create_new_project(name: &str, force: bool) -> Result<()> {
let path = Path::new(name);
// Better error message than the rust default
if path.exists() && !is_directory_quasi_empty(&path)? && !force {
if name == "." {
bail!("The current directory is not an empty folder (hidden files are ignored).");
} else {
bail!(
"`{}` is not an empty folder (hidden files are ignored).",
path.to_string_lossy().to_string()
)
}
}
console::info("Welcome to Zola!");
console::info("Please answer a few questions to get started quickly.");
console::info("Any choices made can be changed by modifying the `config.toml` file later.");
let base_url = ask_url("> What is the URL of your site?", "https://example.com")?;
let compile_sass = ask_bool("> Do you want to enable Sass compilation?", true)?;
let highlight = ask_bool("> Do you want to enable syntax highlighting?", false)?;
let search = ask_bool("> Do you want to build a search index of the content?", false)?;
let config = CONFIG
.trim_start()
.replace("%BASE_URL%", &base_url)
.replace("%COMPILE_SASS%", &format!("{}", compile_sass))
.replace("%SEARCH%", &format!("{}", search))
.replace("%HIGHLIGHT%", &format!("{}", highlight));
populate(&path, compile_sass, &config)?;
println!();
console::success(&format!(
"Done! Your site was created in {}",
strip_unc(&canonicalize(path).unwrap())
));
println!();
console::info(
"Get started by moving into the directory and using the built-in server: `zola serve`",
);
println!("Visit https://www.getzola.org for the full documentation.");
Ok(())
}
fn populate(path: &Path, compile_sass: bool, config: &str) -> Result<()> {
if !path.exists() {
create_dir(path)?;
}
create_file(&path.join("config.toml"), &config)?;
create_dir(path.join("content"))?;
create_dir(path.join("templates"))?;
create_dir(path.join("static"))?;
create_dir(path.join("themes"))?;
if compile_sass {
create_dir(path.join("sass"))?;
}
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
use std::env::temp_dir;
use std::fs::{create_dir, remove_dir, remove_dir_all};
use std::path::Path;
#[test]
fn init_empty_directory() {
let mut dir = temp_dir();
dir.push("test_empty_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
let allowed = is_directory_quasi_empty(&dir)
.expect("An error happened reading the directory's contents");
remove_dir(&dir).unwrap();
assert_eq!(true, allowed);
}
#[test]
fn init_non_empty_directory() {
let mut dir = temp_dir();
dir.push("test_non_empty_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
let mut content = dir.clone();
content.push("content");
create_dir(&content).unwrap();
let allowed = is_directory_quasi_empty(&dir)
.expect("An error happened reading the directory's contents");
remove_dir(&content).unwrap();
remove_dir(&dir).unwrap();
assert_eq!(false, allowed);
}
#[test]
fn init_quasi_empty_directory() {
let mut dir = temp_dir();
dir.push("test_quasi_empty_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
let mut git = dir.clone();
git.push(".git");
create_dir(&git).unwrap();
let allowed = is_directory_quasi_empty(&dir)
.expect("An error happened reading the directory's contents");
remove_dir(&git).unwrap();
remove_dir(&dir).unwrap();
assert_eq!(true, allowed);
}
#[test]
fn populate_existing_directory() {
let mut dir = temp_dir();
dir.push("test_existing_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
populate(&dir, true, "").expect("Could not populate zola directories");
assert_eq!(true, dir.join("config.toml").exists());
assert_eq!(true, dir.join("content").exists());
assert_eq!(true, dir.join("templates").exists());
assert_eq!(true, dir.join("static").exists());
assert_eq!(true, dir.join("themes").exists());
assert_eq!(true, dir.join("sass").exists());
remove_dir_all(&dir).unwrap();
}
#[test]
fn populate_non_existing_directory() {
let mut dir = temp_dir();
dir.push("test_non_existing_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
populate(&dir, true, "").expect("Could not populate zola directories");
assert_eq!(true, dir.exists());
assert_eq!(true, dir.join("config.toml").exists());
assert_eq!(true, dir.join("content").exists());
assert_eq!(true, dir.join("templates").exists());
assert_eq!(true, dir.join("static").exists());
assert_eq!(true, dir.join("themes").exists());
assert_eq!(true, dir.join("sass").exists());
remove_dir_all(&dir).unwrap();
}
#[test]
fn populate_without_sass() {
let mut dir = temp_dir();
dir.push("test_wihout_sass_dir");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
populate(&dir, false, "").expect("Could not populate zola directories");
assert_eq!(false, dir.join("sass").exists());
remove_dir_all(&dir).unwrap();
}
#[test]
fn strip_unc_test() {
let mut dir = temp_dir();
dir.push("new_project");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
if cfg!(target_os = "windows") {
assert_eq!(
strip_unc(&canonicalize(Path::new(&dir)).unwrap()),
"C:\\Users\\VssAdministrator\\AppData\\Local\\Temp\\new_project"
)
} else {
assert_eq!(
strip_unc(&canonicalize(Path::new(&dir)).unwrap()),
canonicalize(Path::new(&dir)).unwrap().to_str().unwrap().to_string()
);
}
remove_dir_all(&dir).unwrap();
}
// If the following test fails it means that the canonicalize function is fixed and strip_unc
// function/workaround is not anymore required.
// See issue https://github.com/rust-lang/rust/issues/42869 as a reference.
#[test]
#[cfg(target_os = "windows")]
fn strip_unc_required_test() {
let mut dir = temp_dir();
dir.push("new_project");
if dir.exists() {
remove_dir_all(&dir).expect("Could not free test directory");
}
create_dir(&dir).expect("Could not create test directory");
assert_eq!(
canonicalize(Path::new(&dir)).unwrap().to_str().unwrap(),
"\\\\?\\C:\\Users\\VssAdministrator\\AppData\\Local\\Temp\\new_project"
);
remove_dir_all(&dir).unwrap();
}
}