load and parse example config

Cargo.toml

@@ -15,7 +15,7 @@ keywords = ["tree", "find", "ls", "du", "commandline"]
 exclude = ["assets/*", "scripts/*", "example/*"]
 readme = "README.md"
 license = "MIT"
-rust-version = "1.74.0"
+rust-version = "1.76.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
@@ -50,6 +50,7 @@ once_cell = "1.17.0"
 regex = "1.7.3"
 terminal_size = "0.2.6"
 thiserror = "1.0.40"
+toml = "0.8.8"
 
 [target.'cfg(unix)'.dependencies]
 libc = "0.2.141"

example/.erdtree.toml

@@ -1,28 +1,26 @@
+# Please becareful modifying this file as some tests may assume
+# this file to look a certain way.
+
 icons = true
-human = true
 
 # Compute file sizes like `du`
 [du]
-disk_usage = "block"
+metric = "block"
 icons = true
 layout = "flat"
-no-ignore = true
-no-git = true
-hidden = true
 level = 1
 
 # Do as `ls -l`
 [ls]
 icons = true
-human = true
 level = 1
 suppress-size = true
 long = true
-no-ignore = true
-hidden = true
+gitignore = true
+no_hidden = true
 
 # How many lines of Rust are in this code base?
 [rs]
-disk-usage = "line"
+metric = "line"
 level = 1
 pattern = "\\.rs$"

src/disk/mod.rs

@@ -10,7 +10,7 @@ use std::{
 /// Binary and SI prefixes.
 pub mod prefix;
 
-/// https://doc.rust-lang.org/std/os/unix/fs/trait.MetadataExt.html#tymethod.blocks
+/// <https://doc.rust-lang.org/std/os/unix/fs/trait.MetadataExt.html#tymethod.blocks>
 #[cfg(unix)]
 const BLOCK_SIZE: u64 = 512;
 
@@ -93,7 +93,7 @@ impl Usage {
     }
 
     /// Gets the apparent file size rather than disk usage. Refer to `--apparent-size` in the man
-    /// pages of `du`: https://man7.org/linux/man-pages/man1/du.1.html
+    /// pages of `du`: <https://man7.org/linux/man-pages/man1/du.1.html>
     pub fn init_logical(metadata: &Metadata, presentation: BytePresentation) -> Self {
         let value = metadata.is_dir().then_some(0).unwrap_or(metadata.len());
 

src/disk/prefix.rs

@@ -3,7 +3,7 @@ use std::{
     fmt::{self, Display},
 };
 
-/// https://en.wikipedia.org/wiki/Binary_prefix
+/// <https://en.wikipedia.org/wiki/Binary_prefix>
 #[derive(Debug, PartialEq)]
 pub enum Binary {
     Base,
@@ -14,7 +14,7 @@ pub enum Binary {
     Pebi,
 }
 
-/// https://en.wikipedia.org/wiki/International_System_of_Units
+/// <https://en.wikipedia.org/wiki/International_System_of_Units>
 #[derive(Debug, PartialEq)]
 pub enum Si {
     Base,

src/file/mod.rs

@@ -107,7 +107,7 @@ impl File {
             Metric::Line => disk::Usage::init_line_count(&data, &metadata, *follow)?,
 
             #[cfg(unix)]
-            Metric::Blocks => disk::Usage::init_blocks(&metadata),
+            Metric::Block => disk::Usage::init_blocks(&metadata),
         };
 
         #[cfg(unix)]

src/main.rs

@@ -1,4 +1,5 @@
 #![cfg_attr(windows, feature(windows_by_handle))]
+use clap::CommandFactory;
 use log::Log;
 use std::{
     io::{stdout, Write},
@@ -7,6 +8,7 @@ use std::{
 
 /// Defines the command-line interface and the context used throughout Erdtree.
 mod user;
+use user::Context;
 
 /// Concerned with disk usage calculation and presentation.
 mod disk;
@@ -27,6 +29,8 @@ mod logging;
 /// Concerned with rendering the program output.
 mod render;
 
+const BIN_NAME: &str = "erd";
+
 fn main() -> ExitCode {
     if let Err(e) = run() {
         eprintln!("{e}");
@@ -38,6 +42,11 @@ fn main() -> ExitCode {
 fn run() -> Result<()> {
     let mut ctx = user::Context::init()?;
 
+    if let Some(shell) = ctx.completions {
+        clap_complete::generate(shell, &mut Context::command(), BIN_NAME, &mut stdout());
+        return Ok(());
+    }
+
     let logger = ctx
         .verbose
         .then_some(logging::LoggityLog::init())

src/user/args.rs

@@ -18,7 +18,7 @@ pub enum Metric {
 
     /// Total amount of blocks allocated to store a file on disk
     #[cfg(unix)]
-    Blocks,
+    Block,
 }
 
 /// Whether to report byte size using SI or binary prefixes or no prefix.

src/user/config/mod.rs

@@ -0,0 +1,25 @@
+const ERDTREE_CONFIG_TOML: &str = ".erdtree.toml";
+const ERDTREE_TOML_PATH: &str = "ERDTREE_TOML_PATH";
+
+const ERDTREE_CONFIG_NAME: &str = ".erdtreerc";
+const ERDTREE_CONFIG_PATH: &str = "ERDTREE_CONFIG_PATH";
+
+const ERDTREE_DIR: &str = "erdtree";
+
+#[cfg(unix)]
+const CONFIG_DIR: &str = ".config";
+
+#[cfg(unix)]
+const HOME: &str = "HOME";
+
+#[cfg(unix)]
+const XDG_CONFIG_HOME: &str = "XDG_CONFIG_HOME";
+
+/// Concerned with loading `.erdtree.toml`.
+pub mod toml;
+
+/// Concerned with parsing the result of [`toml::load`] into args.
+pub mod parse;
+
+#[cfg(test)]
+mod test;