mull 0.20.0

Organize your knowledge.
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use ignore::{WalkBuilder, overrides::OverrideBuilder};
use std::path::Path;

// Configure a walk of the wiki tree which follows directory symlinks, includes hidden entries, and
// honors ignore files within the tree while excluding VCS metadata.
pub fn wiki_tree_walker(wiki_directory: &Path) -> Result<WalkBuilder, ignore::Error> {
    // Exclude VCS metadata, which never needs links.
    let mut overrides = OverrideBuilder::new(wiki_directory);
    overrides
        .add("!.git/")
        .expect("the static .git override should be valid")
        .add("!.hg/")
        .expect("the static .hg override should be valid");
    let overrides = overrides.build()?;

    // Consult ignore files only within the wiki tree, whether or not it is a Git repository.
    let mut walker_builder = WalkBuilder::new(wiki_directory);
    walker_builder
        .current_dir(wiki_directory)
        .follow_links(true)
        .hidden(false)
        .parents(false)
        .require_git(false)
        .overrides(overrides);
    Ok(walker_builder)
}