From 3d01c20f3e759d4c7fb02af6aea88f59e736e7c8 Mon Sep 17 00:00:00 2001
From: Meghan <hello@nektro.net>
Date: Sat, 5 Dec 2020 10:06:59 -0800
Subject: [PATCH] add the http dep type

---
 README.md             |  3 ++-
 src/cmd_fetch.zig     |  7 +++++++
 src/util/dep_type.zig | 25 +++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9da4670648e5912642a58ecbc05198af3fd96e58..f1face6b0a1c758cbfc025048cf4fa16d8df45ce 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,7 @@ zigmod add <type> <path>
 - `system_lib`
 - `git`
 - `hg`
+- `http`
 
 ### `fetch` command
 ```
@@ -103,7 +104,7 @@ pub fn build(b: *Builder) void {
 #### Dep object
 | Name | Type | Note | Description |
 |------|------|------|-------------|
-| `type` | `string` | required, enum | One of `system_lib`, `git`, `hg` |
+| `type` | `string` | required, enum | One of `system_lib`, `git`, `hg`, `http` |
 | `path` | `string` | required | URL/path to this dependency. depends on the type |
 | `version` | `string` | only on some types | pin this dependency at a specific version |
 | `only_os` | `string` | | comma separated list of OS names to add this Dep to |
diff --git a/src/cmd_fetch.zig b/src/cmd_fetch.zig
index a6df53b05c6bdeeb6bd6d5585b147205423317e7..f9953a1bf5da2fd57aae1d42fcfaf00f1577175d 100644
--- a/src/cmd_fetch.zig
+++ b/src/cmd_fetch.zig
@@ -130,6 +130,13 @@ fn fetch_deps(dir: []const u8, mpath: []const u8) anyerror!u.Module {
                     _ = try d.type.update(p, d.path);
                 }
             },
+            .http => {
+                const file_name = try u.last(try u.split(d.path, "/"));
+                if (try u.does_file_exist(p)) {
+                    try u.rm_recv(p);
+                }
+                _ = try d.type.pull(d.path, p);
+            },
         }
         switch (d.type) {
             .system_lib => {
diff --git a/src/util/dep_type.zig b/src/util/dep_type.zig
index 66a6708b734902b0430b68d55ec5b395760fa8be..a15de572e82beb2abb21eddb0abe34c981371dbb 100644
--- a/src/util/dep_type.zig
+++ b/src/util/dep_type.zig
@@ -1,3 +1,6 @@
+const std = @import("std");
+const gpa = std.heap.c_allocator;
+
 const u = @import("./index.zig");
 
 //
@@ -7,6 +10,7 @@ pub const DepType = enum {
     system_lib, // std.build.LibExeObjStep.linkSystemLibrary
     git,        // https://git-scm.com/
     hg,         // https://www.mercurial-scm.org/
+    http,       // https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
 
     pub fn pull(self: DepType, rpath: []const u8, dpath: []const u8) !void {
         switch (self) {
@@ -18,6 +22,24 @@ pub const DepType = enum {
             .hg => {
                 _ = try u.run_cmd(null, &[_][]const u8{"hg", "clone", rpath, dpath});
             },
+            .http => {
+                try u.mkdir_all(dpath);
+                _ = try u.run_cmd(dpath, &[_][]const u8{"wget", rpath});
+                const f = rpath[std.mem.lastIndexOf(u8, rpath, "/").?+1..];
+                if (std.mem.endsWith(u8, f, ".zip")) {
+                    _ = try u.run_cmd(dpath, &[_][]const u8{"unzip", f, "-d", "."});
+                    try std.fs.deleteFileAbsolute(try std.fs.path.join(gpa, &[_][]const u8{dpath, f}));
+                }
+                if (
+                    std.mem.endsWith(u8, f, ".tar")
+                    or std.mem.endsWith(u8, f, ".tar.gz")
+                    or std.mem.endsWith(u8, f, ".tar.xz")
+                    or std.mem.endsWith(u8, f, ".tar.zst")
+                ) {
+                    _ = try u.run_cmd(dpath, &[_][]const u8{"tar", "-xf", f, "-C", "."});
+                    try std.fs.deleteFileAbsolute(try std.fs.path.join(gpa, &[_][]const u8{dpath, f}));
+                }
+            },
         }
     }
 
@@ -31,6 +53,9 @@ pub const DepType = enum {
             .hg => {
                 _ = try u.run_cmd(dpath, &[_][]const u8{"hg", "pull"});
             },
+            .http => {
+                //
+            },
         }
     }
 };
-- 
2.54.0