wip: feat: Migrated deps command.

src/main.zig

@@ -14,11 +14,15 @@ pub fn main(init: std.process.Init) !void {
 
     const args = try init.minimal.args.toSlice(arena);
 
-    run(init.io, args) catch return fallback_to_go(init.io, arena, args);
+    try run(init.io, init.environ_map, args); //catch return fallback_to_go(init.io, arena, args);
 }
 
 /// Attempt to run the requested command.
-fn run(io: Io, args: []const [:0]const u8) !void {
+fn run(
+    io: Io,
+    environ_map: *std.process.Environ.Map,
+    args: []const [:0]const u8,
+) !void {
     const cmd = try envr.root.parse(args[1..]);
     switch (cmd) {
         .envr => {
@@ -32,6 +36,17 @@ fn run(io: Io, args: []const [:0]const u8) !void {
 
             return version(stdout_writer);
         },
+        .deps => {
+            var stdout_buffer: [1024]u8 = undefined;
+            var stdout_file_writer: Io.File.Writer = .init(.stdout(), io, &stdout_buffer);
+            const stdout_writer = &stdout_file_writer.interface;
+
+            return deps(
+                io,
+                stdout_writer,
+                environ_map.get("PATH").?,
+            );
+        },
     }
 }
 
@@ -40,6 +55,83 @@ fn version(writer: *Io.Writer) !void {
     try writer.flush();
 }
 
+// Display dependency statuses
+fn deps(
+    io: Io,
+    writer: *Io.Writer,
+    path: []const u8,
+) !void {
+    var feats: Features = .{};
+
+    // try writer.print("path: {s}\n\n", .{path});
+
+    var dirs = std.mem.splitScalar(u8, path, std.fs.path.delimiter);
+
+    // std.debug.print("feats: {b}\n", .{@as(u2, @bitCast(feats))});
+    // std.debug.print("all feats: {b}\n", .{@as(u2, @bitCast(Features.all_features))});
+
+    loop: while (dirs.next()) |dir| {
+        // try writer.print("dir: {s}\n", .{dir});
+        // try writer.flush();
+
+        // FIXME: Need to handle this failure
+        const dirt = try Io.Dir.openDir(Io.Dir.cwd(), io, dir, .{ .follow_symlinks = true, .iterate = true });
+        defer dirt.close(io);
+
+        var dir_paths = dirt.iterate();
+
+        while (try dir_paths.next(io)) |file| {
+            // FIXME: Check if executable
+            // switch (file.kind) {
+            // .file, .sym_link => {
+            if (std.mem.eql(u8, std.fs.path.basename(file.name), "git")) {
+                feats.git = true;
+                // try writer.print("file: {s}\n", .{file.name});
+                // try writer.flush();
+
+                if (feats == Features.all_features) {
+                    break :loop;
+                }
+            }
+
+            if (std.mem.eql(u8, std.fs.path.basename(file.name), "fd")) {
+                feats.fd = true;
+                // try writer.print("file: {s}\n", .{file.name});
+                // try writer.flush();
+
+                if (feats == Features.all_features) {
+                    break :loop;
+                }
+            }
+
+            //     },
+
+            //     else => {},
+            // }
+        }
+    }
+
+    // if (path_contains(path, "git")) {
+    //     feats.git = true;
+    // }
+
+    // if (path_contains(path, "fd")) {
+    //     feats.fd = true;
+    // }
+
+    try writer.print("features: {}", .{feats});
+    try writer.flush();
+}
+
+const Features = packed struct {
+    git: bool = false,
+    fd: bool = false,
+    const all_features: Features = .{
+        .git = true,
+        .fd = true,
+    };
+};
+
 fn fallback_to_go(
     io: Io,
     arena: std.mem.Allocator,

src/root.zig

@@ -7,7 +7,10 @@ const Command = comma.Command;
 
 pub const root: Command = .new(.{
     .name = "envr",
-    .subcommands = &.{.{ .name = "version" }},
+    .subcommands = &.{
+        .{ .name = "deps" },
+        .{ .name = "version" },
+    },
 });
 
 test "enum type" {