feat: simplify pre-commit output with Nerd Font file icons

Replace verbose generation change warnings with clean, LLM-friendly output.
Add file type icons for 50+ extensions organized by category.

Author: fasterthanlime

src/main.rs

@@ -1986,58 +1986,115 @@ fn run_pre_push() {
     std::process::exit(0);
 }
 
-fn show_and_apply_jobs(jobs: &mut [Job]) {
-    use std::io::{self, Write};
-
-    const ACTION_REQUIRED: &str = "🚧";
-    const OK: &str = "✅";
-    const CANCEL: &str = "🛑";
+/// Returns a Nerd Font icon for the given file extension
+fn icon_for_extension(ext: &str) -> &'static str {
+    match ext {
+        // Languages
+        "rs" => "\u{e7a8}",                         //  Rust
+        "js" => "\u{e74e}",                         //  JavaScript
+        "ts" => "\u{e628}",                         //  TypeScript
+        "jsx" | "tsx" => "\u{e7ba}",                //  React
+        "py" => "\u{e73c}",                         //  Python
+        "rb" => "\u{e791}",                         //  Ruby
+        "go" => "\u{e626}",                         //  Go
+        "java" => "\u{e738}",                       //  Java
+        "c" | "h" => "\u{e61e}",                    //  C
+        "cpp" | "cc" | "cxx" | "hpp" => "\u{e61d}", //  C++
+        "cs" => "\u{f031b}",                        // 󰌛 C#
+        "swift" => "\u{e755}",                      //  Swift
+        "kt" | "kts" => "\u{e634}",                 //  Kotlin
+        "php" => "\u{e73d}",                        //  PHP
+        "lua" => "\u{e620}",                        //  Lua
+        "zig" => "\u{e6a9}",                        //  Zig
+        "hs" => "\u{e777}",                         //  Haskell
+        "ex" | "exs" => "\u{e62d}",                 //  Elixir
+        "erl" => "\u{e7b1}",                        //  Erlang
+        "scala" => "\u{e737}",                      //  Scala
+        "clj" | "cljs" => "\u{e768}",               //  Clojure
+        "r" => "\u{f07d4}",                         // 󰟔 R
+        "jl" => "\u{e624}",                         //  Julia
+        "pl" | "pm" => "\u{e769}",                  //  Perl
+        "sh" | "bash" | "zsh" => "\u{e795}",        //  Shell
+        "fish" => "\u{f489}",                       //  Fish
+        "ps1" => "\u{e70f}",                        //  PowerShell
+        "vim" => "\u{e62b}",                        //  Vim
+        "el" => "\u{e779}",                         //  Emacs Lisp
+
+        // Web
+        "html" | "htm" => "\u{e736}",  //  HTML
+        "css" => "\u{e749}",           //  CSS
+        "scss" | "sass" => "\u{e74b}", //  Sass
+        "less" => "\u{e758}",          //  Less
+        "vue" => "\u{e6a0}",           //  Vue
+        "svelte" => "\u{e697}",        //  Svelte
+        "astro" => "\u{e6b3}",         //  Astro
+        "wasm" => "\u{e6a1}",          //  WebAssembly
+
+        // Data/Config
+        "json" => "\u{e60b}",            //  JSON
+        "yaml" | "yml" => "\u{e6a8}",    //  YAML
+        "toml" => "\u{e6b2}",            //  TOML
+        "xml" => "\u{f05c0}",            // 󰗀 XML
+        "csv" => "\u{f0219}",            // 󰈙 CSV
+        "sql" => "\u{e706}",             //  SQL
+        "graphql" | "gql" => "\u{e662}", //  GraphQL
+        "proto" => "\u{e6a5}",           //  Protobuf
+
+        // Documentation
+        "md" | "markdown" => "\u{e73e}", //  Markdown
+        "txt" => "\u{f0219}",            // 󰈙 Text
+        "pdf" => "\u{f0226}",            // 󰈦 PDF
+        "doc" | "docx" => "\u{f0219}",   // 󰈙 Word
+        "rst" => "\u{f0219}",            // 󰈙 reStructuredText
+
+        // Build/Package
+        "lock" => "\u{f023}",       //  Lock file
+        "dockerfile" => "\u{e7b0}", //  Docker
+        "nix" => "\u{f313}",        //  Nix
+        "cmake" => "\u{e615}",      //  CMake
+
+        // Images
+        "png" | "jpg" | "jpeg" | "gif" | "bmp" | "ico" | "webp" => "\u{f03e}", //  Image
+        "svg" => "\u{f0721}",                                                  // 󰜡 SVG
+
+        // Git
+        "gitignore" | "gitattributes" | "gitmodules" => "\u{e702}", //  Git
+
+        // Default
+        _ => "\u{f15b}", //  Generic file
+    }
+}
 
+fn show_and_apply_jobs(jobs: &mut [Job]) {
     jobs.sort_by_key(|job| job.path.clone());
 
     if jobs.is_empty() {
         println!("{}", "All generated files are up-to-date".green().bold());
         return;
     }
 
-    println!(
-        "\n{}\n{}\n",
-        format_args!("{ACTION_REQUIRED} GENERATION CHANGES {ACTION_REQUIRED}")
-            .on_black()
-            .bold()
-            .yellow()
-            .italic()
-            .underline(),
-        format_args!(
-            "The following {} file{} will be updated/generated:",
-            jobs.len(),
-            if jobs.len() == 1 { "" } else { "s" }
-        )
-        .magenta()
-    );
-    for (idx, job) in jobs.iter().enumerate() {
-        println!(
-            "  {}. {}",
-            (idx + 1).bold().cyan(),
-            job.path.display().yellow(),
-        );
+    // Apply all jobs first
+    for job in jobs.iter() {
+        if let Err(e) = job.apply() {
+            eprintln!("Failed to apply {}: {e}", job.path.display());
+            std::process::exit(1);
+        }
     }
 
-    let jobs_vec = jobs.to_vec();
-
-    for job in &jobs_vec {
-        print!("{} Applying {} ... ", OK, job.path.display().yellow());
-        io::stdout().flush().unwrap();
-        match job.apply() {
-            Ok(_) => {
-                println!("{}", "ok".green());
-            }
-            Err(e) => {
-                println!("{} {}", CANCEL, format_args!("failed: {e}").red());
-            }
-        }
+    // Print clean summary
+    println!(
+        "\n{}",
+        "These files have been automatically formatted and staged:".green()
+    );
+    for job in jobs.iter() {
+        let ext = job.path.extension().and_then(|e| e.to_str()).unwrap_or("");
+        let icon = icon_for_extension(ext);
+        println!("  {} {}", icon.cyan(), job.path.display());
     }
-    println!("{} {}", OK, "All fixes applied and staged!".green().bold());
+    println!(
+        "\n{}",
+        "The commit is ready to push - no 'git amend' is necessary.".green()
+    );
     std::process::exit(0);
 }