diff --git a/examples/nop-preprocessor.rs b/examples/nop-preprocessor.rs index 90840067..38764207 100644 --- a/examples/nop-preprocessor.rs +++ b/examples/nop-preprocessor.rs @@ -3,6 +3,7 @@ use clap::{App, Arg, ArgMatches, SubCommand}; use mdbook::book::Book; use mdbook::errors::Error; use mdbook::preprocess::{CmdPreprocessor, Preprocessor, PreprocessorContext}; +use semver::{Version, VersionReq}; use std::io; use std::process; @@ -33,9 +34,10 @@ fn main() { fn handle_preprocessing(pre: &dyn Preprocessor) -> Result<(), Error> { let (ctx, book) = CmdPreprocessor::parse_input(io::stdin())?; - if ctx.mdbook_version != mdbook::MDBOOK_VERSION { - // We should probably use the `semver` crate to check compatibility - // here... + let book_version = Version::parse(&ctx.mdbook_version)?; + let version_req = VersionReq::parse(mdbook::MDBOOK_VERSION)?; + + if version_req.matches(&book_version) != true { eprintln!( "Warning: The {} plugin was built against version {} of mdbook, \ but we're being called from version {}",