define path expansion

Cargo.lock

@@ -8,12 +8,55 @@ version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"
 
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "dirs"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3aa72a6f96ea37bbc5aa912f6788242832f75369bdfdadcb0e38423f100059"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.140"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -45,6 +88,26 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "redox_users"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
+dependencies = [
+ "getrandom",
+ "redox_syscall",
+ "thiserror",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.107"
@@ -87,12 +150,41 @@ name = "wash"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "dirs",
  "log",
  "macros",
  "thiserror",
  "windows",
 ]
 
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows"
 version = "0.44.0"

Cargo.toml

@@ -4,15 +4,11 @@ version = "0.1.0"
 edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
-# [workspace]
-# members = [
-#   "macros"
-# ]
-
 [dependencies]
 anyhow = "1.0"
 thiserror = "1.0"
 macros = { path = "macros" }
+dirs = "4"
 
 log = "0.4"
 

src/main.rs

@@ -16,7 +16,9 @@ use crate::log::*;
 use shell::Shell;
 
 fn main() -> Result<()> {
-    match Log::file("C:\\Users\\jordan\\wash.log") {
+    let mut shell = Shell::new()?;
+    let log_path = shell.expand_path("~/wash.log");
+    match Log::file(log_path) {
         Ok(f) => {
             let target = Box::leak(Box::new(f));
             _ = set_logger(target).map(|()| set_max_level(LevelFilter::Debug));
@@ -27,7 +29,6 @@ fn main() -> Result<()> {
     }
 
     let prompt = Prompt::new();
-    let mut shell = Shell::new()?;
 
     prompt.print(&mut shell.output)?;
     info!("» enter");

src/shell.rs

@@ -1,11 +1,13 @@
-use std::fs::File;
-use std::io::{Read, Seek, SeekFrom, Write};
-use crate::output;
-use crate::input;
-use crate::line::Line;
-use crate::log::*;
+use crate::{input, line::Line, log::*, output};
+
+use std::{
+    fs::File,
+    io::{Read, Seek, SeekFrom, Write},
+    path::{Path, PathBuf},
+};
 
 use anyhow::Result;
+use dirs;
 
 pub struct Shell {
     pub input: input::Reader,
@@ -64,6 +66,33 @@ impl Shell {
         Ok(())
     }
 
+    pub fn expand_path<P: AsRef<Path>>(&self, p: P) -> PathBuf {
+        let p = p.as_ref();
+
+        match p.to_str() {
+            Some(s) => {
+                if s.len() == 0 || !s.starts_with('~') {
+                    return p.to_path_buf();
+                }
+            }
+            None => {
+                return p.to_path_buf();
+            }
+        }
+
+        let mut parts = p.components();
+        let first = parts.next().unwrap().as_os_str().to_str().unwrap();
+        if first == "~" {
+            dirs::home_dir().unwrap().join(parts)
+        } else {
+            let my_home = dirs::home_dir().unwrap();
+            let home_root = my_home.parent().unwrap();
+            let first = &first[1..];
+            let other_home = home_root.join(first);
+            other_home.join(parts)
+        }
+    }
+
     pub fn eval(&mut self, cmd: String, args: Vec<&str>) -> Result<bool> {
         match cmd.as_str() {
             "pwd" => {
@@ -175,5 +204,3 @@ impl Shell {
         }
     }
 }
-
-// pub fn expand() { }