add package manager

Author: ziteh

package_manager/build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const exe = b.addExecutable(.{
+        .name = "package_manager",
+        .root_source_file = b.path("src/main.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+    b.installArtifact(exe);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+
+    const exe_unit_tests = b.addTest(.{
+        .root_source_file = b.path("src/main.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+    const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
+
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&run_exe_unit_tests.step);
+
+    // Import package
+    const zul = b.dependency("zul", .{
+        .target = target,
+        .optimize = optimize,
+    });
+    exe.root_module.addImport("zul", zul.module("zul"));
+}

package_manager/build.zig.zon

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+.{
+    .name = "package_manager",
+    .version = "0.0.0",
+    .dependencies = .{
+        .zul = .{
+            .url = "https://github.com/karlseguin/zul/archive/master.tar.gz",
+            .hash = "12206f5d1e5bd4793fe952bbae891b7424a19026e0d296a1381074c7d21d5d76c1a1",
+        },
+    },
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+    },
+}

package_manager/readme.md

@@ -0,0 +1,10 @@
+# Package Manager
+
+For example, using the [karlseguin/zul](https://github.com/karlseguin/zul) package.
+
+```bash
+$ zig build run
+UNIX: 1857079750000
+GMT:  2028-11-05T23:29:10Z
+Convert UNIX timestamp to human readable: https://www.unixtimestamp.com
+```

package_manager/src/main.zig

@@ -0,0 +1,9 @@
+const std = @import("std");
+const zul = @import("zul"); // https://github.com/karlseguin/zul
+
+pub fn main() !void {
+    const dt = try zul.DateTime.parse("2028-11-05T23:29:10Z", .rfc3339);
+    const unix = dt.unix(.milliseconds);
+    std.debug.print("UNIX: {d}\nGMT:  {s}\n", .{ unix, dt });
+    std.debug.print("Convert UNIX timestamp to human readable: https://www.unixtimestamp.com", .{});
+}