Enhance build options and refactor memory management for configuration parsing

build.zig

@@ -2,7 +2,9 @@ const std = @import("std");
 
 pub fn build(b: *std.Build) void
 {
-    const target   = b.standardTargetOptions(.{});
+    const target   = b.standardTargetOptions(.{
+        .default_target = .{ .abi = .musl },
+    });
     const optimize = b.standardOptimizeOption(.{});
 
     const version = getGitVersion(b);
@@ -44,6 +46,7 @@ pub fn build(b: *std.Build) void
         }),
     });
 
+    exe.root_module.link_libc = true;
     exe.root_module.addOptions("build_options", options);
 
     //

src/config/config.zig

@@ -19,7 +19,7 @@ test "parse zocket config"
 
     const allocator = std.testing.allocator;
 
-    const parsed = try parse(io, allocator, "zocket/config.toml");
+    const parsed = try parse(io, allocator, "config/config.toml");
     defer parsed.deinit();
 
     const cfg = parsed.value;

src/main.zig

@@ -9,48 +9,51 @@ const args = zocket.deps.args;
 
 pub fn main(init: std.process.Init) !void
 {
-    const io = init.io;
+    const debug = builtin.mode == .Debug;
+    const io    = init.io;
 
-    if (builtin.mode == .Debug)
+    var gpa: std.heap.DebugAllocator(.{}) = .init;
+    defer _ = gpa.deinit();
+    defer if (debug)
     {
-        var arena: std.heap.DebugAllocator(.{}) = .init;
+        if (gpa.detectLeaks() != 0) std.process.exit(1);
-        defer _ = arena.deinit();
+    };
 
-        try run(io, arena.allocator(), "config/config.toml");
+    const allocator = if (debug) gpa.allocator() else std.heap.c_allocator;
+
+    var tmpArena       = std.heap.ArenaAllocator.init(std.heap.c_allocator);
+    const tmpAllocator = tmpArena.allocator();
+
+    var parser = try args.ArgumentParser.init(tmpAllocator, .{
+        .name        = "zocket",
+        .version     = options.version,
+        .description = "A lightweight Zig WebSocket server and mesh routing daemon.",
+    });
+
+    try parser.addOption("path", .{
+        .short = 'p',
+        .help  = "Configuration-File Path (*.toml)",
+    });
+
+    var result = try parser.parseProcess(init);
+
+    const path = if (debug) path:
+    {
+        const tmpPath = result.getString("path") orelse "config/config.toml";
+        break :path try allocator.dupe(u8, tmpPath);
     }
-    else
+    else path:
     {
-        var arena = std.heap.ArenaAllocator.init(std.heap.smp_allocator);
-        defer arena.deinit();
-        const allocator = arena.allocator();
-
-        var tmpArena       = std.heap.ArenaAllocator.init(std.heap.smp_allocator);
-        const tmpAllocator = tmpArena.allocator();
-
-        var parser = try args.ArgumentParser.init(tmpAllocator, .{
-            .name        = "zocket",
-            .version     = options.version,
-            .description = "A lightweight Zig WebSocket server and mesh routing daemon.",
-        });
-
-        try parser.addOption("path", .{
-            .short = 'p',
-            .help  = "Configuration-File Path (*.toml)",
-        });
-
-        var result = try parser.parseProcess(init);
-
         const tmpPath = result.getString("path") orelse blk: {
             const exe = try std.process.executableDirPathAlloc(io, tmpAllocator);
             break :blk  try std.Io.Dir.path.join(tmpAllocator, &.{ exe, "config/config.toml" });
         };
+        break :path try allocator.dupe(u8, tmpPath);
+    };
 
-        const path = try allocator.dupe(u8, tmpPath);
+    tmpArena.deinit();
 
-        tmpArena.deinit();
+    try run(io, allocator, path);
-
-        try run(io, allocator, path);
-    }
 }
 
 fn run(io: std.Io, allocator: std.mem.Allocator, path: []const u8) !void
@@ -66,6 +69,7 @@ fn run(io: std.Io, allocator: std.mem.Allocator, path: []const u8) !void
         std.process.exit(1);
     };
     defer parsed.deinit();
+    allocator.free(path);
 
     const configuration = parsed.value;