From 4ca5a1da9ec8b2fdb1dcdb04d2b3ac3dd50dfe15 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sun, 2 May 2021 23:11:02 -0700
Subject: [PATCH] add `aq update` and `aq modfile` commands

---
 src/cmd/aq.zig             |  2 ++
 src/cmd/aquila/modfile.zig | 23 +++++++++++++
 src/cmd/aquila/update.zig  | 66 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 91 insertions(+)
 create mode 100644 src/cmd/aquila/modfile.zig
 create mode 100644 src/cmd/aquila/update.zig

diff --git a/src/cmd/aq.zig b/src/cmd/aq.zig
index 5483e58383d8c53a97d75640a47303b51f4dcc00..8e3ffb809e82906b0d70fcf2e5a415aa7a72e52e 100644
--- a/src/cmd/aq.zig
+++ b/src/cmd/aq.zig
@@ -11,6 +11,8 @@ const u = @import("./../util/index.zig");
 
 pub const commands = struct {
     pub const add = @import("./aquila/add.zig");
+    pub const update = @import("./aquila/update.zig");
+    pub const modfile = @import("./aquila/modfile.zig");
 };
 
 pub const server_root = "https://aquila.red";
diff --git a/src/cmd/aquila/modfile.zig b/src/cmd/aquila/modfile.zig
new file mode 100644
index 0000000000000000000000000000000000000000..fc0fb7aeccb2d20d339f4d5cdcf828608920edaa
--- /dev/null
+++ b/src/cmd/aquila/modfile.zig
@@ -0,0 +1,23 @@
+const std = @import("std");
+const gpa = std.heap.c_allocator;
+
+const u = @import("./../../util/index.zig");
+const aq = @import("./../aq.zig");
+
+//
+//
+
+pub fn execute(args: [][]u8) !void {
+    const pkg_id_v = args[0];
+
+    const url = try std.mem.join(gpa, "/", &.{ aq.server_root, pkg_id_v });
+    const val = try aq.server_fetch(url);
+
+    const v = val.get("vers").?;
+    const maj = v.get("real_major").?.Number;
+    const min = v.get("real_minor").?.Number;
+    const hash = v.get("tar_hash").?.String;
+
+    std.debug.print("  - src: http {s}/{s}.tar.gz _ {d} {d}\n", .{ aq.server_root, pkg_id_v, maj, min });
+    std.debug.print("    version: {s}\n", .{hash});
+}
diff --git a/src/cmd/aquila/update.zig b/src/cmd/aquila/update.zig
new file mode 100644
index 0000000000000000000000000000000000000000..8fe062fcd46f3936d08c1deabb6e47bd533fc63e
--- /dev/null
+++ b/src/cmd/aquila/update.zig
@@ -0,0 +1,66 @@
+const std = @import("std");
+const gpa = std.heap.c_allocator;
+
+const u = @import("./../../util/index.zig");
+const aq = @import("./../aq.zig");
+
+//
+//
+
+pub fn execute(args: [][]u8) !void {
+    //
+    const mod = try u.ModFile.init(gpa, "zig.mod");
+
+    for (mod.deps) |d| {
+        try check_dep(d);
+    }
+    for (mod.devdeps) |d| {
+        try check_dep(d);
+    }
+}
+
+fn check_dep(dep: u.Dep) !void {
+    if (dep.type != .http) {
+        return;
+    }
+    if (!std.mem.startsWith(u8, dep.path, aq.server_root)) {
+        return;
+    }
+    var pkg_id_v = std.mem.split(url_to_pkgid(dep.path), "/");
+    const host = pkg_id_v.next().?;
+    const user = pkg_id_v.next().?;
+    const pkg = pkg_id_v.next().?;
+    const vers = try vers_get_pieces(pkg_id_v.next().?);
+
+    const url = try std.mem.join(gpa, "/", &.{ aq.server_root, host, user, pkg });
+    const val = try aq.server_fetch(url);
+
+    const versions = val.get("versions").?.Array;
+    const latest = versions[versions.len - 1];
+
+    const rmaj = latest.get("real_major").?.Number;
+    const rmin = latest.get("real_minor").?.Number;
+
+    if (rmaj == vers[0] and rmin == vers[1]) {
+        return;
+    }
+
+    std.log.info("found new version: {s}/{s}/{s}/v{d}.{d}", .{ host, user, pkg, rmaj, rmin });
+}
+
+fn url_to_pkgid(url: []const u8) []const u8 {
+    var res = url;
+    res = std.mem.trimLeft(u8, res, aq.server_root);
+    res = std.mem.trimRight(u8, res, ".tar.gz");
+    return res;
+}
+
+fn vers_get_pieces(v: []const u8) ![2]f64 {
+    var it = std.mem.split(v[1..], ".");
+    const maj = it.next().?;
+    const min = it.next().?;
+    return [_]f64{
+        try std.fmt.parseFloat(f64, maj),
+        try std.fmt.parseFloat(f64, min),
+    };
+}
-- 
2.54.0