Cargo.lock

@@ -58,7 +58,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b97f376d85a664d5837dbae44bf546e6477a679ff6610010f17276f686d867e8"
 dependencies = [
  "clap_builder",
- "clap_derive",
 ]
 
 [[package]]
@@ -73,18 +72,6 @@ dependencies = [
  "strsim",
 ]
 
-[[package]]
-name = "clap_derive"
-version = "4.5.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ac6a0c7b1a9e9a5186361f67dfa1b88213572f427fb9ab038efb2bd8c582dab"
-dependencies = [
- "heck",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "clap_lex"
 version = "0.7.2"
@@ -112,12 +99,6 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
 
-[[package]]
-name = "heck"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
-
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.1"
@@ -132,47 +113,12 @@ dependencies = [
  "crc",
 ]
 
-[[package]]
-name = "proc-macro2"
-version = "1.0.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f139b0662de085916d1fb67d2b4169d1addddda1919e696f3252b740b629986e"
-dependencies = [
- "unicode-ident",
-]
-
-[[package]]
-name = "quote"
-version = "1.0.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
-dependencies = [
- "proc-macro2",
-]
-
 [[package]]
 name = "strsim"
 version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
-[[package]]
-name = "syn"
-version = "2.0.85"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5023162dfcd14ef8f32034d8bcd4cc5ddc61ef7a247c024a33e24e1f24d21b56"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
-[[package]]
-name = "unicode-ident"
-version = "1.0.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
-
 [[package]]
 name = "utf8parse"
 version = "0.2.2"

Cargo.toml

@@ -5,4 +5,4 @@ edition = "2021"
 
 [dependencies]
 crc = "3.2.1"
-clap = { version = "4.5.20", features = ["derive"] }
+clap = "4.5.20"

src/args.rs

@@ -1,39 +0,0 @@
-use clap::{Parser, ValueEnum};
-
-#[derive(Parser, Debug)]
-#[command(version, about)]
-pub struct Args {
-    #[arg(long, value_enum, required = true)]
-    pub mode: Mode,
-
-    #[arg(
-        short,
-        long,
-        required = true,
-    )]
-    pub input_file: Option<String>,
-
-    #[arg(
-        short,
-        long,
-        required_if_eq("mode", "Mode::Encode"),
-        required_if_eq("mode", "Mode::Decode"),
-        required_if_eq("mode", "Mode::Remove")
-    )]
-    pub chunk_type: Option<String>,
-
-    #[arg(
-        short,
-        long,
-        required_if_eq("mode", "Mode::Encode")
-    )]
-    pub message: Option<String>,
-}
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, ValueEnum)]
-pub enum Mode {
-    Encode,
-    Decode,
-    Print,
-    Remove
-}

src/main.rs

@@ -4,58 +4,9 @@ mod chunk_type;
 mod commands;
 mod png;
 
-use core::panic;
-use std::path::PathBuf;
-use std::fs::File;
-
-use args::Mode;
-use chunk_type::ChunkType;
-use clap::Parser;
-use crate::args::Args;
-
 pub type Error = Box<dyn std::error::Error>;
 pub type Result<T> = std::result::Result<T, Error>;
 
-fn get_image(path: &str) -> File {
-    let image_path: PathBuf = PathBuf::from(path);
-    let path_display = image_path.display();
-
-    let image = match File::open(&image_path) {
-        Err(why) => panic!("couldn't open {}: {}", path_display, why),
-        Ok(file) => file
-    };
-
-    image
-}
-
-fn encode(image: File, chunk_type: ChunkType, message: &str) {
-    todo!()
-}
-
-fn decode(image: File, chunk_type: ChunkType) {
-    todo!()
-}
-
-fn print_message(image: File) {
-    todo!()
-}
-
-fn remove_message(image: File, chunk_type: ChunkType) {
-    todo!()
-}
-
 fn main() -> Result<()> {
-    let args = Args::parse();
-
-    let image = get_image(&args.input_file.unwrap());
-
-    match args.mode {
-        Mode::Encode    => todo!(),
-        Mode::Decode    => todo!(),
-        Mode::Print     => todo!(),
-        Mode::Remove    => todo!(),
-        _               => Err("not a valid mode")?
-    }
-
-    Ok(())
+    todo!()
 }