797112ef36
This does a little cleanup around the usage of filesystem functions: - Add `mdbook_core::utils::fs::read_to_string` as a wrapper around `std::fs::read_to_string` to provide better error messages. Use this wherever a file is read. - Add `mdbook_core::utils::fs::create_dir_all` as a wrapper around `std::fs::create_dir_all` to provide better error messages. Use this wherever a file is read. - Replace `mdbook_core::utils::fs::write_file` with `write` to mirror the `std::fs::write` API. - Remove `mdbook_core::utils::fs::create_file`. It was generally not used anymore. - Scrub the usage of `std::fs` to use the new wrappers. This doesn't remove it 100%, but it is now significantly reduced.
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
use anyhow::{Context, Result};
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use mdbook_core::utils::fs;
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use mdbook_renderer::{RenderContext, Renderer};
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use tracing::trace;
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/// A renderer to output the Markdown after the preprocessors have run. Mostly useful
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/// when debugging preprocessors.
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#[derive(Default)]
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#[non_exhaustive]
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pub struct MarkdownRenderer;
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impl MarkdownRenderer {
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/// Create a new `MarkdownRenderer` instance.
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pub fn new() -> Self {
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MarkdownRenderer
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}
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}
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impl Renderer for MarkdownRenderer {
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fn name(&self) -> &str {
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"markdown"
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}
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fn render(&self, ctx: &RenderContext) -> Result<()> {
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let destination = &ctx.destination;
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let book = &ctx.book;
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if destination.exists() {
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fs::remove_dir_content(destination)
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.with_context(|| "Unable to remove stale Markdown output")?;
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}
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trace!("markdown render");
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for ch in book.chapters() {
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let path = ctx
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.destination
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.join(ch.path.as_ref().expect("Checked path exists before"));
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fs::write(path, &ch.content)?;
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}
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fs::create_dir_all(destination)
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.with_context(|| "Unexpected error when constructing destination path")?;
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Ok(())
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}
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}
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