New --help message

Cargo.toml

@@ -14,6 +14,7 @@ description = "A command-line utility for easily compressing and decompressing f
 
 [dependencies]
 colored = "2.0.0"
+termion = "1.5.6"
 walkdir = "2.3.2"
 tar     = "0.4.33"
 xz2     = "0.1.6"

src/commands.rs

@@ -38,28 +38,12 @@ pub fn run(command: Command, flags: &oof::Flags) -> crate::Result<()> {
                 decompress_file(file, output_folder, flags)?;
             }
         }
-        Command::ShowHelp => help_command(),
+        Command::ShowHelp => crate::help_command(),
-        Command::ShowVersion => version_command(),
+        Command::ShowVersion => crate::version_command(),
     }
     Ok(())
 }
 
-fn help_command() {
-    version_command();
-    println!("Vinícius R. M. & João M. Bezerra");
-    println!("ouch is a unified compression & decompression utility");
-    println!();
-    println!(" COMPRESSION USAGE:");
-    println!("    ouch compress <input...> output-file");
-    println!("DECOMPRESSION USAGE:");
-    println!("    ouch <input> [-o/--output output-folder]");
-}
-
-#[inline]
-fn version_command() {
-    println!("ouch {}", crate::VERSION);
-}
-
 type BoxedCompressor = Box<dyn Compressor>;
 type BoxedDecompressor = Box<dyn Decompressor>;
 

src/lib.rs

@@ -11,6 +11,71 @@ mod extension;
 mod file;
 mod utils;
 
+pub use error::{Error, Result};
+
 const VERSION: &str = "0.1.5";
 
-pub use error::{Error, Result};
+fn help_command() {
+    use utils::colors::*;
+    /*
+    ouch - Obvious Unified Compressed files Helper
+
+    USAGE:
+        ouch <files...>                        Decompresses files.
+
+        ouch compress <files...> OUTPUT.EXT    Compresses files into OUTPUT.EXT,
+                                               where EXT must be a supported format.
+
+    FLAGS:
+        -h, --help    Display this help information.
+        -y, --yes     Skip overwrite questions.
+        -n, --no      Skip overwrite questions.
+        --version     Display version information.
+
+    SPECIFIC FLAGS:
+        -o, --output FOLDER_PATH    When decompressing, to decompress files to
+                                    another folder.
+
+    Visit https://github.com/vrmiguel/ouch for more usage examples.
+    */
+
+    println!(
+        "\
+{cyan}ouch{reset} - Obvious Unified Compression files Helper
+
+{cyan}USAGE:{reset}
+    {green}ouch {magenta}<files...>{reset}                        Decompresses files.
+
+    {green}ouch compress {magenta}<files...> OUTPUT.EXT{reset}    Compresses files into {magenta}OUTPUT.EXT{reset},
+                                           where {magenta}EXT{reset} must be a supported format.
+
+{cyan}FLAGS:{reset}
+    {yellow}-h{white}, {yellow}--help{reset}    Display this help information.
+    {yellow}-y{white}, {yellow}--yes{reset}     Skip overwrite questions.
+    {yellow}-n{white}, {yellow}--no{reset}      Skip overwrite questions.
+    {yellow}--version{reset}     Display version information.
+
+{cyan}SPECIFIC FLAGS:{reset}
+    {yellow}-o{reset}, {yellow}--output{reset} FOLDER_PATH    When decompressing, to decompress files to
+                                another folder.
+
+Visit https://github.com/vrmiguel/ouch for more usage examples.",
+        magenta = magenta(),
+        white = white(),
+        green = green(),
+        yellow = yellow(),
+        reset = reset(),
+        cyan = cyan()
+    );
+}
+
+#[inline]
+fn version_command() {
+    use utils::colors::*;
+    println!(
+        "{green}ouch{reset} {}",
+        crate::VERSION,
+        green = green(),
+        reset = reset(),
+    );
+}

src/utils.rs

@@ -126,6 +126,39 @@ pub struct Bytes {
     bytes: f64,
 }
 
+#[allow(dead_code)]
+pub mod colors {
+    use termion::color::*;
+
+    pub fn reset() -> &'static str {
+        Reset.fg_str()
+    }
+    pub fn black() -> &'static str {
+        LightBlack.fg_str()
+    }
+    pub fn blue() -> &'static str {
+        LightBlue.fg_str()
+    }
+    pub fn cyan() -> &'static str {
+        LightCyan.fg_str()
+    }
+    pub fn green() -> &'static str {
+        LightGreen.fg_str()
+    }
+    pub fn magenta() -> &'static str {
+        LightMagenta.fg_str()
+    }
+    pub fn red() -> &'static str {
+        LightRed.fg_str()
+    }
+    pub fn white() -> &'static str {
+        LightWhite.fg_str()
+    }
+    pub fn yellow() -> &'static str {
+        LightYellow.fg_str()
+    }
+}
+
 impl Bytes {
     const UNIT_PREFIXES: [&'static str; 6] = ["", "k", "M", "G", "T", "P"];