handle home directory expansion

Cargo.toml

@@ -27,6 +27,7 @@ doc = false
 [dependencies]
 eyre = "0.6.9"
 gumdrop = "0.8.1"
+home = "0.5.9"
 ignore = "0.4.21"
 lazy_static = "1.4.0"
 matter = "0.1.0-alpha4"

src/lib.rs

@@ -23,6 +23,7 @@ use rayon::prelude::*;
 use references::*;
 use slug::slugify;
 use snafu::{ResultExt, Snafu};
+
 use std::ffi::OsString;
 use std::fmt;
 use std::fs::{self, File};
@@ -266,6 +267,8 @@ impl<'a> Exporter<'a> {
     /// Create a new exporter which reads notes from `root` and exports these to
     /// `destination`.
     pub fn new(root: PathBuf, destination: PathBuf) -> Exporter<'a> {
+        let root = expand_home_dir(root);
+        let destination = expand_home_dir(destination);
         Exporter {
             start_at: root.clone(),
             root,
@@ -889,6 +892,21 @@ fn codeblock_kind_to_owned<'a>(codeblock_kind: CodeBlockKind) -> CodeBlockKind<'
     }
 }
 
+/// Handles ~
+fn expand_home_dir<P: Into<PathBuf>>(path: P) -> PathBuf {
+    let path = path.into();
+
+    if !path.starts_with("~") {
+        return path;
+    }
+
+    lazy_static! {
+        static ref HOME_DIR: PathBuf = home::home_dir().expect("Unable to find home directory");
+    }
+
+    HOME_DIR.join(path.strip_prefix("~").unwrap())
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;