zola/components/content/src/file_info.rs
2017-07-01 16:47:41 +09:00

117 lines
3.6 KiB
Rust

use std::path::{Path, PathBuf};
/// Takes a full path to a file and returns only the components after the first `content` directory
/// Will not return the filename as last component
pub fn find_content_components<P: AsRef<Path>>(path: P) -> Vec<String> {
let path = path.as_ref();
let mut is_in_content = false;
let mut components = vec![];
for section in path.parent().unwrap().components() {
let component = section.as_ref().to_string_lossy();
if is_in_content {
components.push(component.to_string());
continue;
}
if component == "content" {
is_in_content = true;
}
}
components
}
/// Struct that contains all the information about the actual file
#[derive(Debug, Clone, PartialEq)]
pub struct FileInfo {
/// The full path to the .md file
pub path: PathBuf,
/// The name of the .md file without the extension, always `_index` for sections
pub name: String,
/// The .md path, starting from the content directory, with `/` slashes
pub relative: String,
/// Path of the directory containing the .md file
pub parent: PathBuf,
/// Path of the grand parent directory for that file. Only used in sections to find subsections.
pub grand_parent: Option<PathBuf>,
/// The folder names to this section file, starting from the `content` directory
/// For example a file at content/kb/solutions/blabla.md will have 2 components:
/// `kb` and `solutions`
pub components: Vec<String>,
}
impl FileInfo {
pub fn new_page(path: &Path) -> FileInfo {
let file_path = path.to_path_buf();
let mut parent = file_path.parent().unwrap().to_path_buf();
let name = path.file_stem().unwrap().to_string_lossy().to_string();
let mut components = find_content_components(&file_path);
let relative = format!("{}/{}.md", components.join("/"), name);
// If we have a folder with an asset, don't consider it as a component
if !components.is_empty() && name == "index" {
components.pop();
// also set parent_path to grandparent instead
parent = parent.parent().unwrap().to_path_buf();
}
FileInfo {
path: file_path,
// We don't care about grand parent for pages
grand_parent: None,
parent,
name,
components,
relative,
}
}
pub fn new_section(path: &Path) -> FileInfo {
let parent = path.parent().unwrap().to_path_buf();
let components = find_content_components(path);
let relative = if components.is_empty() {
// the index one
"_index.md".to_string()
} else {
format!("{}/_index.md", components.join("/"))
};
let grand_parent = parent.parent().map(|p| p.to_path_buf());
FileInfo {
path: path.to_path_buf(),
parent,
grand_parent,
name: "_index".to_string(),
components,
relative,
}
}
}
#[doc(hidden)]
impl Default for FileInfo {
fn default() -> FileInfo {
FileInfo {
path: PathBuf::new(),
parent: PathBuf::new(),
grand_parent: None,
name: String::new(),
components: vec![],
relative: String::new(),
}
}
}
#[cfg(test)]
mod tests {
use super::find_content_components;
#[test]
fn can_find_content_components() {
let res = find_content_components("/home/vincent/code/site/content/posts/tutorials/python.md");
assert_eq!(res, ["posts".to_string(), "tutorials".to_string()]);
}
}