Tidy

README.md

@@ -13,17 +13,21 @@ curl -fsSL -o dehydrate https://gitea.jde.nz/public/dehydrate/releases/download/
 
 ## How it Works
 
+Dehydrate converts existing files to C++ source code which can be used to recreate the original files.
+Works on individual files or entire directory trees.
 
-Given a source file or folder, creates c++ code to recreate that file/folder.
-If it's a folder, it recreates the entire tree (all subfolders and files within).
-
-Use:
 ```
-Usage:
-    dehydrate [-s] SOURCEFILE DESTFOLDER      Creates _SOURCEFILE.CPP and _SOURCEFILE.HPP in DESTFOLDER
-    dehydrate [-s] SOURCEFOLDER DESTFOLDER    Creates _SOURCEFOLDER.CPP and _SOURCEFOLDER.HPP in DESTFOLDER
 
-    -s = silent (no output)
+Usage: dehydrate [OPTIONS] SOURCE DEST
+
+Options:
+  -s         Silent mode (no output)
+  -u         Update dehydrate to the latest version
+
+Examples:
+  dehydrate file.txt output/    Creates _file.txt.cpp and _file.txt.hpp in output/
+  dehydrate src/ output/        Creates _src.cpp and _src.hpp in output/
+  dehydrate -u                  Updates dehydrate to the latest version
 ```
 
 All c++ code produced is in namespace `recreate_{SOURCEFILE|SOURCEFOLDER}`

include/argparse.hpp

@@ -3,6 +3,7 @@
 
 struct Args {
     bool silent = false;
+    bool update = false;
     std::string source;
     std::string dest;
 };

src/argparse.cpp

@@ -1,16 +1,43 @@
 #include "argparse.hpp"
 #include <stdexcept>
 
+static const std::string HELP_TEXT = R"(
+Converts existing files to C++ source code which can be used to recreate the original files.
+
+Usage: dehydrate [OPTIONS] SOURCE DEST
+
+Options:
+  -s         Silent mode (no output)
+  -u         Update dehydrate to the latest version
+
+Examples:
+  dehydrate file.txt output/    Creates _file.txt.cpp and _file.txt.hpp in output/
+  dehydrate src/ output/        Creates _src.cpp and _src.hpp in output/
+  dehydrate -u                  Updates dehydrate to the latest version
+)";
+
 Args parse_args(int argc, char* argv[]) {
     Args args;
     int idx = 1;
-    if (argc > 1 && std::string(argv[1]) == "-s") {
+    
+    // Check for silent flag
+    if (idx < argc && std::string(argv[idx]) == "-s") {
         args.silent = true;
         idx++;
     }
-    if (argc - idx != 2) {
-        throw std::runtime_error("Usage: dehydrate [-s] SOURCE DESTFOLDER");
+    
+    // Check for update flag
+    if (idx < argc && std::string(argv[idx]) == "-u") {
+        args.update = true;
+        idx++;
+        return args; // No need for source and dest parameters when updating
     }
+    
+    // Require source and dest parameters for normal operation
+    if (argc - idx != 2) {
+        throw std::runtime_error(HELP_TEXT);
+    }
+    
     args.source = argv[idx];
     args.dest = argv[idx + 1];
     return args;

src/main.cpp

@@ -58,6 +58,12 @@ int update()
 int main(int argc, char* argv[]) {
     try {
         Args args = parse_args(argc, argv);
+        
+        // Handle update request
+        if (args.update) {
+            return update();
+        }
+        
         std::filesystem::path src(args.source);
         if (!std::filesystem::exists(src)) {
             std::cerr << "Source does not exist: " << args.source << std::endl;