From 09c5634a8c29bc40965a91f8db5bcc1a40c8455a Mon Sep 17 00:00:00 2001
From: Meghan <hello@nektro.net>
Date: Sat, 14 Nov 2020 02:13:34 -0800
Subject: [PATCH] zig: add cmd_add

---
 src/cmd_add.zig | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/main.zig    |  1 +
 2 files changed, 50 insertions(+)
 create mode 100644 src/cmd_add.zig

diff --git a/src/cmd_add.zig b/src/cmd_add.zig
new file mode 100644
index 0000000000000000000000000000000000000000..f0958cbb0ed1b4a18199f265e325089c5b3f3683
--- /dev/null
+++ b/src/cmd_add.zig
@@ -0,0 +1,49 @@
+const std = @import("std");
+const gpa = std.heap.c_allocator;
+
+const u = @import("./util/index.zig");
+
+//
+//
+
+pub fn execute(args: [][]u8) !void {
+    //
+    u.assert(args.len >= 1, "missing package <type> parameter", .{});
+    u.assert(args.len >= 2, "missing package <path> parameter", .{});
+
+    const dept = args[0];
+    const path = args[1];
+
+    const dep_type = std.meta.stringToEnum(u.DepType, dept);
+    u.assert(dep_type != null, "provided <type> parameter \"{}\" is not a valid dependency type", .{dept});
+
+    const m = try u.ModFile.init(gpa, "./zig.mod");
+    for (m.deps) |d| {
+        u.assert(!(d.type == dep_type.? and std.mem.eql(u8, d.path, path)), "dependency already added, skipping!", .{});
+    }
+
+    const ndl = &std.ArrayList(u.Dep).init(gpa);
+    for (m.deps) |d| {
+        try ndl.append(d);
+    }
+    try ndl.append(u.Dep{
+        .type = dep_type.?,
+        .path = path,
+    });
+
+    //
+    const f = try std.fs.cwd().createFile("./zig.mod", .{});
+    defer f.close();
+
+    const w = f.writer();
+    try w.print("name: {}\n", .{m.name});
+    try w.print("main: {}\n", .{m.main});
+    try w.print("dependencies:\n", .{});
+
+    for (ndl.items) |d| {
+        try w.print("- type: {}\n", .{@tagName(d.type)});
+        try w.print("  path: {}\n", .{d.path});
+    }
+
+    u.print("Successfully added {}", .{path});
+}
diff --git a/src/main.zig b/src/main.zig
index ce257cc8a8db128bf7e085af1f89ad1deeda0d0e..e4e90d904fb2edf92d409a6fcd21165cf1d0cfac 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,6 +8,7 @@ const u = @import("./util/index.zig");
 
 const commands = struct {
     const init = @import("./cmd_init.zig");
+    const add = @import("./cmd_add.zig");
 };
 
 pub fn main() !void {
-- 
2.54.0