Adding some more examples and removing dead lines

Author: BitlyTwiser

README.md

@@ -11,6 +11,12 @@ Add zdotenv to your zig project:
 zig fetch --save https://github.com/BitlyTwiser/zdotenv/archive/refs/tags/0.1.0.tar.gz
 ```
 
+Add to build file:
+```
+    const zdotenv = b.dependency("zdotenv", .{});
+    exe.root_module.addImport("zdotenv", ymlz.module("root"));
+```
+
 Zdotenv has 2 pathways:
 
 1. Absolute path to .env
@@ -28,6 +34,31 @@ const z = try Zdotenv.init(std.heap.page_allocator);
 try z.load();
 ```
 
+Example from Main:
+```
+const std = @import("std");
+const zdotenv = @import("lib.zig");
+const assert = std.debug.assert;
+
+///  The binary main is used for testing the package to showcase the API
+pub fn main() !void {
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+    const allocator = arena.allocator();
+
+    var dotenv = try zdotenv.Zdotenv.init(allocator);
+    try dotenv.load();
+
+    const env_map = try std.process.getEnvMap(allocator);
+    const pass = env_map.get("PASSWORD") orelse "foobar";
+
+    assert(std.mem.eql(u8, pass, "I AM ALIVE!!"));
+}
+
+```
+
+Importing this into your own library, you will use `@import("zdotenv")`. Otherwise, this would be the same :)
+
 ## C usage:
 Zig (at the time of this writing) does not have a solid way of directly adjusting the env variables. Doing things like:
 ```

build.zig

@@ -12,6 +12,8 @@ pub fn build(b: *std.Build) void {
         .target = target,
         .optimize = optimize,
     });
+
+    // For setting env vars using C
     exe.linkLibC();
     b.installArtifact(exe);
 

src/dotenv.zig

@@ -50,7 +50,6 @@ pub const Zdotenv = struct {
 
             return;
         };
-        // defer file.close();
 
         // Set file
         self.file = file;
@@ -73,7 +72,6 @@ pub const Zdotenv = struct {
 
             return;
         };
-        // defer file.close();
 
         //Set file
         self.file = file;
@@ -94,6 +92,7 @@ pub const Zdotenv = struct {
             // Dupe strings with terminating zero for C
             const key_z = try self.allocator.dupeZ(u8, entry.key_ptr.*);
             const value_z = try self.allocator.dupeZ(u8, entry.value_ptr.*);
+
             if (setenv(key_z, value_z, 1) != 0) {
                 std.debug.print("Failed to set env var\n", .{});
                 return;

src/lib.zig

@@ -1,7 +1,7 @@
 // Lib.zig is the package interface where all modules are collected for export
 
-pub const parser = @import("parser.zig");
+const parser = @import("parser.zig");
 pub const Parser = parser.Parser;
 
-pub const zdotenv = @import("dotenv.zig");
+const zdotenv = @import("dotenv.zig");
 pub const Zdotenv = zdotenv.Zdotenv;

src/main.zig

@@ -1,4 +1,20 @@
 const std = @import("std");
+const zdotenv = @import("lib.zig").Zdotenv;
+const assert = std.debug.assert;
 
 ///  The binary main is used for testing the package to showcase the API
-pub fn main() !void {}
+pub fn main() !void {
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+    const allocator = arena.allocator();
+
+    var dotenv = try zdotenv.init(allocator);
+    try dotenv.load();
+
+    const env_map = try std.process.getEnvMap(allocator);
+    const pass = env_map.get("PASSWORD_ENV") orelse "foobar";
+
+    std.debug.print("{s}", .{pass});
+
+    assert(std.mem.eql(u8, pass, "I AM ALIVE!!"));
+}