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shtola and co: A static site generator and utilities
Copyright (C) 2023 Liv Hugger
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hello: bro
---
hi

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# Hello!
What's going _on_?

0
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0
fixtures/pretty_links/subfolder/hello.html Normal file
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BIN
fixtures/read_binary/my_binary Normal file
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Binary file not shown.

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hi!

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one.txt

0
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0
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5
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---
layout: root
---
<p>hiii</p>

5
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---
layout: root
---
hello

7
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---
is_layout: true
---
<h1>top layout</h1>
{{content}}

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [0.4.2] - 2021-11-10
### Changed
- Enabled the Markdown processor to accept raw HTML.
## [0.4.1] - 2021-11-10
### Fixed
- Excluded existing `index.html` files from path rewriting.
## [0.4.0] - 2021-11-10
### Added
- Added a plugin to rewrite HTML files into `<filename>/index.html` paths.
## [0.3.0] - 2021-11-09
### Added
- Added Tera layouts support.
- Added this here changelog.
- Added a new function, `Shtola#source_ignores`, to load your ignores from
an external file (something like a .gitignore).
- Added the capability to read binary (e.g. non-UTF-8 encoded files), which stores
them in a new `ShFile` field: `raw_content`. If you want to exclude binaries,
filter out `file.raw_content.is_some()`.
### Changed
- The chosen destination is now always automatically ignored.
### Fixed
- Markdown: Improved the extension filter so that it doesn't panic every time it
finds a file without an extension (like dotfiles or just files without dots)
## [0.2.1] - 2021-07-07
### Changed
- Enabled docs.rs to build all features.
## [0.2.0] - 2021-07-07
### Added
- Implemented `Default` for `ShFile`.
### Changed
- Inlined plugins into the crate itself. This means that now, you control the plugins shtola comes with
not via installing extra crates, but via enabling crate features on the main `shtola` crate. This saves me
a stupid amount of maintenance overhead.
- Upgraded `ware` from 1.0 to 2.0. This is a larger refactor that changes the way shtola plugins work. For reference,
see the docs.rs page, examples and tests.
- Updated the main example to actually do something cool. It now pulls the system time.
### Fixed
- Removed a line break that caused the link to docs.rs to break.

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[package]
name = "shtola"
description = "Minimal static site generator"
version = "0.4.2"
authors = ["Liv <shadows_withal@fastmail.com>"]
edition = "2021"
repository = "https://codeberg.org/shadows_withal/shtola"
documentation = "https://docs.rs/shtola"
homepage = "https://codeberg.org/shadows_withal/shtola"
readme = "README.md"
license = "AGPL-3.0-or-later"
[features]
full = ["markdown", "tera_layouts"]
markdown = ["comrak"]
tera_layouts = ["tera", "id_tree"]
[dependencies]
log = "~0.4"
walkdir = "~2.3"
ware = "~2.0"
pathdiff = "~0.2"
globset = "~0.4"
serde_json = "~1.0"
serde_yaml = "~0.8"
# Markdown
comrak = { version = "~0.12", optional = true }
# Tera Layouts
tera = { version = "~1.12", optional = true }
id_tree = { version = "~1.8", optional = true }
[dev_dependencies]
minifemme = "~1.0"
[package.metadata.docs.rs]
all-features = true

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# shtola
Shtola is a library for generic file processing. It enables you to build your
own applications that function as static site generators! Here's an example:
```rust
use shtola::{Plugin, RefIR, ShFile, Shtola};
use std::time::SystemTime;
fn plugin() -> Plugin {
Box::new(|mut ir: RefIR| {
// Let's create our file in the IR (intermediate representation) file hash map!
let current_time = SystemTime::now();
ir.files.insert(
"current_time.txt".into(),
ShFile {
content: format!("{:?}", current_time).into(),
..ShFile::default()
},
);
})
}
fn main() {
let mut s = Shtola::new();
s.source("fixtures/empty");
s.destination("fixtures/dest_systemtime");
s.register(plugin());
s.build().expect("Build failed!");
// Now we have a "current_time.txt" file in our destination directory that
// contains the current system time!
}
```
## Installation
Add the latest version of Shtola to your `Cargo.toml`.
## Documentation
See https://docs.rs/shtola

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use shtola::{RefIR, ShFile, Shtola};
use std::path::PathBuf;
fn main() {
minifemme::start(minifemme::LevelFilter::Info, minifemme::LogMode::Pretty);
let mut s = Shtola::new();
s.source("fixtures/simple");
s.destination("fixtures/dest_write");
s.clean(true);
let mw = Box::new(|mut ir: RefIR| {
// Get the file contents first
// We have to clone here because otherwise there'll be an immutable ref lying around,
// which prevents us from writing to the HashMap later on.
let file = ir.files.get(&PathBuf::from("hello.txt")).unwrap().clone();
ir.files.insert(
"hello.txt".into(),
ShFile {
frontmatter: file.frontmatter,
content: "hello".into(),
raw_content: None,
},
);
});
s.register(mw);
s.build().unwrap();
}

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use shtola::{Plugin, RefIR, ShFile, Shtola};
use std::time::SystemTime;
fn plugin() -> Plugin {
Box::new(|mut ir: RefIR| {
// Let's create our file in the IR (intermediate representation) file hash map!
let current_time = SystemTime::now();
ir.files.insert(
"current_time.txt".into(),
ShFile {
content: format!("{:?}", current_time).into(),
..ShFile::default()
},
);
})
}
fn main() {
minifemme::start(minifemme::LevelFilter::Info, minifemme::LogMode::Pretty);
let mut s = Shtola::new();
s.source("fixtures/empty");
s.destination("fixtures/dest_systemtime");
s.register(plugin());
s.build().expect("Build failed!");
// Now we have a "current_time.txt" file in our destination directory that
// contains the current system time!
}

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use shtola::{plugins, Shtola};
fn main() {
minifemme::start(minifemme::LevelFilter::Info, minifemme::LogMode::Pretty);
let mut s = Shtola::new();
s.source("fixtures/tera_layouts");
s.destination("fixtures/tera_layouts/dest");
s.clean(true);
s.register(plugins::tera_layouts::plugin());
s.build().unwrap();
}

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use serde_json::{json, Value};
use serde_yaml::from_str;
pub fn lexer(text: &str) -> (String, String) {
if text.starts_with("---\n") {
let slice_after_marker = &text[4..];
let marker_end = slice_after_marker.find("---\n").unwrap();
let yaml_slice = &text[4..marker_end + 4];
let content_slice = &text[marker_end + 2 * 4..];
(
yaml_slice.trim().to_string(),
content_slice.trim().to_string(),
)
} else {
(String::new(), text.to_string())
}
}
pub fn to_json(matter: &str) -> Value {
if matter.len() == 0 {
return json!(null);
}
let yaml: Value = from_str(matter).unwrap();
yaml
}

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//! With Shtola, you can build your own static site generators easily. All that
//! Shtola itself does is read files and frontmatter, run them through a bunch
//! of user-provided plugins, and write the result back to disk.
//!
//! As a demonstration of Shtola's basic piping feature, see this example:
//! ```
//! use shtola::Shtola;
//!
//! let mut m = Shtola::new();
//! m.source("../fixtures/simple");
//! m.destination("../fixtures/dest/doctest_example");
//! m.clean(true);
//! m.build().unwrap();
//! ```
//!
//! A "plugin" is just a boxed function that takes a `RefMut` to an `IR` (intermediate
//! representation) struct. The plugin may modify the IR freely:
//!
//! ```
//! use shtola::{Plugin, ShFile, RefIR};
//!
//! fn plugin() -> Plugin {
//! Box::new(|mut ir: RefIR| {
//! ir.files.insert("myFile".into(), ShFile::empty());
//! })
//! }
//! ```
use globset::{Glob, GlobSet, GlobSetBuilder};
use log::{debug, info, trace};
use pathdiff::diff_paths;
use serde_json::json;
use std::cell::RefMut;
use std::default::Default;
use std::fs;
use std::io::{BufRead, BufReader, Read, Write};
use std::path::{Path, PathBuf};
use walkdir::WalkDir;
pub use log;
pub use serde_json as json;
pub use std::collections::HashMap;
pub use ware::Ware;
/// Convenience type for a `RefMut<IR>`.
pub type RefIR<'a> = RefMut<'a, IR>;
/// Convenience type to return from plugin functions.
pub type Plugin = Box<dyn Fn(RefIR) -> ()>;
mod frontmatter;
pub mod plugins;
/// The main library struct.
pub struct Shtola {
ware: Ware<IR>,
ir: IR,
}
impl Shtola {
/// Creates a new empty Shtola struct.
pub fn new() -> Shtola {
let config: Config = Default::default();
let ir = IR {
files: HashMap::new(),
config,
metadata: HashMap::new(),
};
Shtola {
ware: Ware::new(),
ir,
}
}
/// Appends glob-matched paths to the ignore list. If a glob path matches, the
/// file is excluded from the IR.
/// ```
/// use shtola::Shtola;
///
/// let mut m = Shtola::new();
/// m.ignores(&mut vec!["node_modules".into(), "vendor/bundle/".into()])
/// ```
pub fn ignores(&mut self, vec: &mut Vec<String>) {
self.ir.config.ignores.append(vec);
self.ir.config.ignores.dedup();
}
/// Reads paths to ignore from a file. This file needs to have one single path
/// per line. The most common use for this would be to read your project's `.gitignore`.
/// ```
/// use std::path::Path;
/// use shtola::Shtola;
///
/// let mut m = Shtola::new();
/// m.source_ignores(Path::new(".gitignore"));
/// ```
pub fn source_ignores(&mut self, path: &Path) -> Result<(), std::io::Error> {
let sourcepath = self.ir.config.source.clone().canonicalize()?;
let file = fs::File::open(path)?;
let reader = BufReader::new(file);
let mut ignores: Vec<String> = reader.lines().map(|l| l.unwrap()).collect();
self.ignores(&mut ignores);
self.ignores(&mut vec![path
.canonicalize()?
.strip_prefix(sourcepath)
.unwrap_or(path)
.to_str()
.unwrap()
.to_string()]);
Ok(())
}
/// Sets the source directory to read from. Should be relative.
pub fn source<T: Into<PathBuf>>(&mut self, path: T) {
self.ir.config.source = fs::canonicalize(path.into()).unwrap();
}
/// Sets the destination path to write to. This directory will be created on
/// calling this function if it doesn't exist.
pub fn destination<T: Into<PathBuf> + Clone>(&mut self, path: T) {
fs::create_dir_all(path.clone().into()).expect("Unable to create destination directory!");
self.ir.config.destination = fs::canonicalize(path.into()).unwrap();
}
/// Sets whether the destination directory should be removed before building.
/// The removal only happens once calling [`Shtola::build`](#method.build).
/// Default is `false`.
pub fn clean(&mut self, b: bool) {
self.ir.config.clean = b;
}
/// Sets whether frontmatter should be parsed. Default is `true`.
pub fn frontmatter(&mut self, b: bool) {
self.ir.config.frontmatter = b;
}
/// Registers a new plugin function in its middleware chain.
///
/// ```
/// use shtola::{Shtola, RefIR};
///
/// let mut m = Shtola::new();
/// let plugin = Box::new(|mut ir: RefIR| ());
/// m.register(plugin);
/// ```
pub fn register(&mut self, func: Box<dyn Fn(RefIR)>) {
self.ware.wrap(func);
}
/// Performs the build process. This does a couple of things:
/// - If [`Shtola::clean`](#method.clean) is set, removes and recreates the
/// destination directory
/// - Reads from the source file and ignores files as it's been configured
/// - Parses front matter for the remaining files
/// - Runs the middleware chain, executing all plugins
/// - Writes the result back to the destination directory
pub fn build(&mut self) -> Result<IR, std::io::Error> {
trace!("Starting IR config: {:?}", self.ir.config);
if self.ir.config.clean {
info!("Cleaning before build...");
debug!("Removing {:?}", &self.ir.config.destination);
fs::remove_dir_all(&self.ir.config.destination)?;
debug!("Recreating {:?}", &self.ir.config.destination);
fs::create_dir_all(&self.ir.config.destination)
.expect("Unable to recreate destination directory!");
}
let path_clone = self.ir.config.destination.clone();
let pathstr = path_clone.to_str().expect("No destination provided!");
self.ignores(&mut vec![pathstr.to_string()]);
let mut builder = GlobSetBuilder::new();
for item in &self.ir.config.ignores {
builder.add(Glob::new(item).unwrap());
}
let set = builder.build().unwrap();
info!("Reading files...");
let files = read_dir(&self.ir.config.source, self.ir.config.frontmatter, set)?;
trace!("{} file(s) read", &files.len());
self.ir.files = files;
info!("Running plugins...");
let result_ir = self.ware.run(self.ir.clone());
info!("Writing to disk...");
write_dir(result_ir.clone(), &self.ir.config.destination)?;
info!("OK, done");
Ok(result_ir)
}
}
/// The intermediate representation that's passed to plugins. Includes global
/// metadata, the files with frontmatter and the global config.
#[derive(Debug, Clone)]
pub struct IR {
/// The filestate, contained in a `HashMap`.
pub files: HashMap<PathBuf, ShFile>,
/// The configuration.
pub config: Config,
/// Global metadata managed as a `HashMap` that keep JSON values as values.
pub metadata: HashMap<String, json::Value>,
}
/// Configuration struct.
#[derive(Debug, Clone)]
pub struct Config {
/// Files that are to be ignored.
pub ignores: Vec<String>,
/// Source to read from.
pub source: PathBuf,
/// Destination to write to.
pub destination: PathBuf,
/// Whether to clean the destination directory.
pub clean: bool,
/// Whether to parse frontmatter.
pub frontmatter: bool,
}
impl Default for Config {
fn default() -> Self {
Config {
ignores: vec![".git/**/*".into()],
source: PathBuf::from("."),
destination: PathBuf::from("./dest"),
clean: false,
frontmatter: true,
}
}
}
/// Shtola's file representation, with frontmatter included.
#[derive(Debug, Clone)]
pub struct ShFile {
/// The frontmatter.
pub frontmatter: json::Value,
/// The file contents (without frontmatter). UTF-8-encoded.
pub content: Vec<u8>,
/// Raw content for anything that can't be read as UTF-8.
pub raw_content: Option<Vec<u8>>,
}
impl Default for ShFile {
fn default() -> ShFile {
ShFile {
content: Vec::new(),
frontmatter: json::Value::Null,
raw_content: None,
}
}
}
impl ShFile {
/// Creates an empty ShFile. Useful for deleting files using
/// [`HashMap::difference`](struct.HashMap.html#method.difference):
///
/// ```
/// use shtola::{Plugin, RefIR, ShFile, HashMap};
/// use std::path::PathBuf;
///
/// fn plugin() -> Plugin {
/// Box::new(|mut ir: RefIR| {
/// ir.files.insert("empty-file.md".into(), ShFile::empty());
/// })
/// }
/// ```
pub fn empty() -> ShFile {
ShFile {
frontmatter: json!(null),
content: Vec::new(),
raw_content: None,
}
}
}
fn read_dir(
source: &PathBuf,
frontmatter: bool,
set: GlobSet,
) -> Result<HashMap<PathBuf, ShFile>, std::io::Error> {
let mut result = HashMap::new();
let iters = WalkDir::new(source)
.into_iter()
.filter_entry(|e| {
let path = diff_paths(e.path(), source).unwrap();
!set.is_match(path)
})
.filter(|e| !e.as_ref().ok().unwrap().file_type().is_dir());
for entry in iters {
let entry = entry?;
let path = entry.path();
let file: ShFile;
let mut content = Vec::new();
debug!("Reading file at {:?}", &path);
fs::File::open(path)?.read_to_end(&mut content)?;
if let Ok(content_string) = std::str::from_utf8(&content) {
if frontmatter {
let (matter, content) = frontmatter::lexer(content_string);
if matter.len() > 0 {
debug!("Lexing frontmatter for {:?}", &path);
}
let json = frontmatter::to_json(&matter);
file = ShFile {
frontmatter: json,
content: content.into(),
raw_content: None,
};
} else {
file = ShFile {
frontmatter: json!(null),
content,
raw_content: None,
};
}
} else {
// Not valid UTF-8, store as binary
file = ShFile {
frontmatter: json!(null),
content: Vec::new(),
raw_content: Some(content),
}
}
let rel_path = diff_paths(path, source).unwrap();
result.insert(rel_path, file);
}
Ok(result)
}
fn write_dir(ir: IR, dest: &PathBuf) -> Result<(), std::io::Error> {
for (path, file) in ir.files {
let dest_path = dest.join(&path);
debug!("Writing {:?} to {:?}", &path, &dest_path);
fs::create_dir_all(dest_path.parent().unwrap())
.expect("Unable to create destination subdirectory!");
if let Some(raw) = file.raw_content {
fs::File::create(dest_path)?.write_all(&raw)?;
} else {
fs::File::create(dest_path)?.write_all(&file.content)?;
}
}
Ok(())
}

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use crate::log::{debug, info};
use crate::{Plugin, RefIR, ShFile};
use comrak::{markdown_to_html, ComrakOptions};
pub fn plugin() -> Plugin {
Box::new(|mut ir: RefIR| {
info!("Starting Markdown processing");
let mut markdown_options = ComrakOptions::default();
markdown_options.render.unsafe_ = true;
let files = ir.files.clone();
let markdown_files = files.iter().filter(|(p, _)| match p.extension() {
Some(ext) => ext == "md",
None => false,
});
for (path, file) in markdown_files {
debug!("Processing {:?}", &path);
let mut p = path.clone();
p.set_extension("html");
ir.files.remove(&path.to_path_buf());
ir.files.insert(
p,
ShFile {
content: markdown_to_html(
std::str::from_utf8(&file.content).unwrap(),
&markdown_options,
)
.into(),
frontmatter: file.frontmatter.clone(),
raw_content: None,
},
);
}
info!("Finished Markdown processing");
})
}
#[test]
fn it_works() {
use crate::Shtola;
use std::path::PathBuf;
let mut s = Shtola::new();
s.source("../fixtures/markdown");
s.destination("../fixtures/dest/markdown");
s.clean(true);
s.register(plugin());
let r = s.build().unwrap();
let file: &ShFile = r.files.get(&PathBuf::from("hello.html")).unwrap();
assert_eq!(
std::str::from_utf8(&file.content).unwrap(),
"<h1>Hello!</h1>\n<p>What's going <em>on</em>?</p>\n"
)
}

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#[cfg(feature = "markdown")]
pub mod markdown;
#[cfg(feature = "tera_layouts")]
pub mod tera_layouts;
pub mod pretty_links;

46
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use std::path::Path;
use crate::log::{debug, info};
use crate::{Plugin, RefIR};
pub fn plugin() -> Plugin {
Box::new(|mut ir: RefIR| {
info!("Prettifying links...");
let files = ir.files.clone();
let html_files = files.iter().filter(|(p, _)| match p.extension() {
Some(ext) => ext == "html" && p.file_name().unwrap() != "index.html",
None => false,
});
for (path, file) in html_files {
let basename = path.file_stem().unwrap();
let mut new_path = match path.parent() {
Some(parent) => parent,
None => Path::new(""),
}
.to_path_buf();
new_path.push(basename);
new_path.push(path.file_name().unwrap());
new_path.set_file_name("index.html");
debug!("{:?} -> {:?}", path, new_path);
ir.files.remove(&path.to_path_buf());
ir.files.insert(new_path, file.clone());
}
})
}
#[test]
fn it_works() {
use crate::Shtola;
use std::path::PathBuf;
let mut s = Shtola::new();
s.source("../fixtures/pretty_links");
s.destination("../fixtures/dest/pretty_links");
s.clean(true);
s.register(plugin());
let r = s.build().unwrap();
assert!(r.files.contains_key(&PathBuf::from("hi/index.html")));
assert!(r
.files
.contains_key(&PathBuf::from("subfolder/hello/index.html")));
}

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use std::collections::HashMap;
use std::path::PathBuf;
use std::str::from_utf8;
use id_tree::InsertBehavior::*;
use id_tree::Node;
use id_tree::NodeId;
use id_tree::Tree;
use serde_json::Value;
use tera::Context;
use tera::Tera;
use crate::log;
use crate::ShFile;
use crate::{Plugin, RefIR};
// WARNING! This plugin uses a very unoptimized algorithm and lots of unwraps.
// Needs refactoring at some point.
pub fn plugin() -> Plugin {
Box::new(|mut ir: RefIR| {
let mut tree: Tree<PathBuf> = Tree::new();
let mut children: Vec<NodeId> = Vec::new();
// Empty root node
let root_id = tree.insert(Node::new(PathBuf::default()), AsRoot).unwrap();
// Find layouts with no parent layouts
let ancestor_layouts: HashMap<&PathBuf, NodeId> = ir
.files
.iter()
.filter(|(_, v)| {
if let Value::Object(obj) = v.frontmatter.clone() {
obj.contains_key("is_layout") && !obj.contains_key("layout")
} else {
false
}
})
.map(|(path, _)| {
// Add them as secondary nodes and re-map them into a hashmap
let id = tree
.insert(Node::new(path.clone()), UnderNode(&root_id))
.unwrap();
(path, id)
})
.collect();
ancestor_layouts.iter().for_each(|(_, node_id)| {
treeify_for(&mut tree, node_id, &ir, &mut children);
});
log::debug!("Layout tree:\n{}", print_tree(&tree));
// Iterate over each child node, and render layouts in reverse order
// of the ancestor subtree.
children.iter().for_each(|id| {
let path = tree.get(id).unwrap().data();
log::debug!("Rendering {:?}", path);
let ancestors: Vec<&Node<PathBuf>> = tree.ancestors(&id).unwrap().collect();
let mut reviter = ancestors.iter().rev().peekable();
let mut acc: Option<String> = None;
reviter.next(); // Root node, empty
if reviter.len() > 1 {
// Poor man's `iter::fold`, we can't peek inside of an already borrowed iterator
while let Some(&node) = reviter.next() {
let mut context = Context::new();
if let Some(next_node) = reviter.peek() {
let val = ir.files.get(next_node.data()).unwrap();
context.insert("content", from_utf8(&val.content).unwrap());
match acc {
None => {
let layout = ir.files.get(node.data()).unwrap();
acc = Some(
Tera::one_off(
from_utf8(&layout.content).unwrap(),
&context,
false,
)
.unwrap(),
)
}
Some(layout) => {
acc = Some(Tera::one_off(layout.as_ref(), &context, false).unwrap())
}
}
}
}
} else {
// Direct child of layout, so we just get the layout and put it in the accumulator
let node = reviter.next().unwrap();
acc = Some(
from_utf8(&ir.files.get(node.data()).unwrap().content)
.unwrap()
.to_string(),
);
}
// Finally, render the child node into the accumulated layout
let mut context = Context::new();
let node_contents = ir.files.get(path).unwrap();
context.insert("content", from_utf8(&node_contents.content).unwrap());
let rendered = Tera::one_off(acc.unwrap().as_ref(), &context, false).unwrap();
// Remove the old file
let mut file = node_contents.clone();
ir.files.remove(path);
// Insert the new file
file.content = rendered.into();
ir.files.insert(path.to_path_buf(), file);
});
// Remove layouts from files
tree.traverse_level_order(&root_id)
.unwrap()
.for_each(|node| {
let file = ir.files.get(node.data());
if let Some(file) = file {
if let Value::Object(obj) = file.frontmatter.clone() {
if obj.contains_key("is_layout") {
ir.files.remove(node.data());
}
}
}
});
})
}
fn treeify_for(
tree: &mut Tree<PathBuf>,
node: &NodeId,
ir: &RefIR,
final_children: &mut Vec<NodeId>,
) {
let layout_name = tree.get(node).unwrap().data().file_stem().unwrap();
// Find the layout's children (e.g. HTML files that use this layout)
let children: HashMap<&PathBuf, &ShFile> = ir
.files
.iter()
.filter(|(_, file)| {
if let Value::Object(obj) = file.frontmatter.clone() {
obj.contains_key("layout")
&& obj.get("layout").unwrap().as_str() == layout_name.to_str()
} else {
false
}
})
.collect();
if !children.is_empty() {
// Insert children into tree
children.iter().for_each(|(path, file)| {
let node_id = tree
.insert(Node::new(path.clone().to_path_buf()), UnderNode(node))
.unwrap();
// If not a layout, insert into final children
let fm = file.frontmatter.clone();
let val = fm.as_object().unwrap();
if !val.contains_key("is_layout") {
final_children.push(node_id.clone());
} else {
// If a layout, recurse
treeify_for(tree, &node_id, ir, final_children);
}
})
}
}
fn print_tree(tree: &Tree<PathBuf>) -> String {
let mut s: String = String::new();
tree.write_formatted(&mut s).unwrap();
s
}
#[test]
fn it_works() {
use crate::Shtola;
use std::str::from_utf8;
let mut s = Shtola::new();
s.source("../fixtures/tera_layouts");
s.destination("../fixtures/dest/tera_layouts");
s.clean(true);
s.register(plugin());
let r = s.build().unwrap();
let file1 = r.files.get(&PathBuf::from("page.html")).unwrap();
let file2 = r.files.get(&PathBuf::from("3rdpage.html")).unwrap();
assert_eq!(
from_utf8(&file1.content).unwrap(),
"<h1>top layout</h1>\n\nhello"
);
assert_eq!(
from_utf8(&file2.content).unwrap(),
"<h1>top layout</h1>\n\n<p>hiii</p>"
);
}

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shtola/tests/shtola.rs Normal file
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use shtola::json::json;
use shtola::{RefIR, ShFile, Shtola};
use std::fs;
use std::path::{Path, PathBuf};
#[test]
fn read_works() {
let mut s = Shtola::new();
s.source("../fixtures/simple");
s.destination("../fixtures/dest/read");
let r = s.build().unwrap();
assert_eq!(r.files.len(), 1);
let keys: Vec<&PathBuf> = r.files.keys().collect();
assert_eq!(keys[0].to_str().unwrap(), "hello.txt");
}
#[test]
fn clean_works() {
let mut s = Shtola::new();
s.source("../fixtures/simple");
s.destination("../fixtures/dest/clean");
s.clean(true);
fs::create_dir_all("../fixtures/dest/clean").unwrap();
fs::write("../fixtures/dest/clean/blah.foo", "").unwrap();
s.build().unwrap();
let fpath = PathBuf::from("../fixtures/dest/clean/blah.foo");
assert_eq!(fpath.exists(), false);
}
#[test]
fn write_works() {
let mut s = Shtola::new();
s.source("../fixtures/simple");
s.destination("../fixtures/dest/write");
s.clean(true);
let mw = Box::new(|mut ir: RefIR| {
let file = ir.files.get(&PathBuf::from("hello.txt")).unwrap().clone();
ir.files.insert(
"hello.txt".into(),
ShFile {
content: "hello".into(),
frontmatter: file.frontmatter.clone(),
raw_content: None,
},
);
});
s.register(mw);
s.build().unwrap();
let dpath = PathBuf::from("../fixtures/dest/write/hello.txt");
assert!(dpath.exists());
let file = &fs::read(dpath).unwrap();
let fstring = String::from_utf8_lossy(file);
assert_eq!(fstring, "hello");
}
#[test]
fn read_works_with_binaries() {
let mut s = Shtola::new();
s.source("../fixtures/read_binary");
s.destination("../fixtures/dest/read_binary");
let r = s.build().unwrap();
assert_eq!(r.files.len(), 1);
let (name, file) = r.files.iter().next().unwrap();
assert_eq!(name.to_str().unwrap(), "my_binary");
assert!(file.raw_content.is_some());
}
#[test]
fn write_works_with_binaries() {
let mut s = Shtola::new();
s.source("../fixtures/read_binary");
s.destination("../fixtures/dest/write_binary");
s.clean(true);
s.build().unwrap();
let dpath = PathBuf::from("../fixtures/dest/write_binary/my_binary");
assert!(dpath.exists());
let file = fs::read(dpath).unwrap();
let fres = String::from_utf8(file);
assert!(fres.is_err());
}
#[test]
fn frontmatter_works() {
let mut s = Shtola::new();
s.source("../fixtures/frontmatter");
s.destination("../fixtures/dest/frontmatter");
s.clean(true);
let r = s.build().unwrap();
let (_, matter_file) = r.files.iter().last().unwrap();
let frontmatter = matter_file.frontmatter.get("hello").unwrap();
assert_eq!(frontmatter, "bro");
}
#[test]
fn no_frontmatter_works() {
let mut s = Shtola::new();
s.source("../fixtures/frontmatter");
s.destination("../fixtures/dest/no_frontmatter");
s.clean(true);
s.frontmatter(false);
let r = s.build().unwrap();
let (_, matter_file) = r.files.iter().last().unwrap();
assert!(matter_file.frontmatter.is_null());
}
#[test]
fn ignore_works() {
let mut s = Shtola::new();
s.source("../fixtures/ignore");
s.destination("../fixtures/dest/ignore");
s.ignores(&mut vec!["ignored.md".to_string()]);
s.clean(true);
let r = s.build().unwrap();
assert_eq!(r.files.len(), 1);
let (path, _) = r.files.iter().last().unwrap();
assert_eq!(path.to_str().unwrap(), "not_ignored.md");
}
#[test]
fn source_ignore_works() {
let mut s = Shtola::new();
s.source("../fixtures/source_ignore");
s.destination("../fixtures/dest/source_ignore");
s.source_ignores(Path::new("../fixtures/source_ignore/ignores"))
.unwrap();
s.clean(true);
let r = s.build().unwrap();
assert_eq!(r.files.len(), 1);
let (path, _) = r.files.iter().last().unwrap();
assert_eq!(path.to_str().unwrap(), "two.txt");
}
#[test]
fn metadata_works() {
let mut s = Shtola::new();
s.source("../fixtures/simple");
s.destination("../fixtures/dest/metadata");
s.clean(true);
let mw1 = Box::new(|mut ir: RefIR| {
ir.metadata.insert("test".into(), json!("foo"));
ir.metadata.insert("test2".into(), json!({"bar": "baz"}));
});
let mw2 = Box::new(|mut ir: RefIR| {
ir.metadata.insert("test".into(), json!(["a", "b", "c"]));
});
s.register(mw1);
s.register(mw2);
let r = s.build().unwrap();
assert_eq!(r.metadata.get("test").unwrap(), &json!(["a", "b", "c"]));
assert_eq!(r.metadata.get("test2").unwrap(), &json!({"bar": "baz"}));
}