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4815264e2d
In v2 of the course, I'd like to include an estimate of the time to be spent on each segment in the Markdown file. I think a good place for such metadata is in the frontmatter. For review purposes, though, I just want to display that information. So, this is a start at a new mdbook preprocessor that just separates out the frontmatter and includes it in a `<pre>` block. Eventually, I'd like to parse it and put the time in the speaker notes. --------- Co-authored-by: Martin Geisler <martin@geisler.net>
47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use clap::{Arg, Command};
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use mdbook::preprocess::CmdPreprocessor;
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use mdbook_course::frontmatter::remove_frontmatter;
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use std::io::{stdin, stdout};
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use std::process;
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fn main() {
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pretty_env_logger::init();
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let app = Command::new("mdbook-course")
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.about("mdbook preprocessor for Comprehensive Rust")
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.subcommand(Command::new("supports").arg(Arg::new("renderer").required(true)));
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let matches = app.get_matches();
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if let Some(_) = matches.subcommand_matches("supports") {
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// Support all renderers.
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process::exit(0);
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}
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if let Err(e) = preprocess() {
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eprintln!("{}", e);
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process::exit(1);
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}
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}
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fn preprocess() -> anyhow::Result<()> {
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let (ctx, mut book) = CmdPreprocessor::parse_input(stdin())?;
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remove_frontmatter(&ctx, &mut book)?;
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serde_json::to_writer(stdout(), &book)?;
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Ok(())
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}
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