Fix bug where tilde wasn't expanded to homedir

Cargo.toml

@@ -16,3 +16,4 @@ structopt = "0.3.*"
 clap = "2.33.*"
 env_logger = "0.7.*"
 log = "0.4.*"
+shellexpand = "1.1.*"

src/deploy.rs

@@ -4,12 +4,12 @@ use args;
 
 use toml::value::Table;
 
-use std::fs::{self, canonicalize};
+use std::fs;
 use std::io::{Read, Write, Seek};
 use std::path::Path;
 use std::process;
 
-use filesystem::relativize;
+use filesystem::{canonicalize, relativize};
 
 pub fn deploy(cache_directory: &Path, cache: bool, opt: args::GlobalOptions) {
     // Configuration

src/filesystem.rs

@@ -1,4 +1,11 @@
+use shellexpand;
+
 use std::path::{Path, PathBuf};
+use std::{io, fs};
+
+pub fn canonicalize<P: AsRef<Path>>(path: P) -> Result<PathBuf, io::Error> {
+    fs::canonicalize(shellexpand::tilde(&path.as_ref().to_string_lossy()).into_owned())
+}
 
 pub fn relativize(path: &Path) -> PathBuf {
     if path.is_relative() {

src/main.rs

@@ -5,6 +5,7 @@ extern crate structopt;
 extern crate env_logger;
 #[macro_use]
 extern crate log;
+extern crate shellexpand;
 
 mod args;
 mod config;