Factor out CD, DEL, MD, RD, PATH, DIR, TYPE.

1 files changed, 66 insertions, 0 deletions

diff --git a/src/cmd/rename.zig b/src/cmd/rename.zig
new file mode 100644
index 0000000..e3401d2
--- /dev/null
+++ b/src/cmd/rename.zig
@@ -0,0 +1,66 @@
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+const print = std.debug.print;
+
+const syntax = @import("../syntax.zig");
+const FileSpec = syntax.FileSpec;
+
+const types = @import("./types.zig");
+const CommandStatus = types.CommandStatus;
+const OutputCapture = types.OutputCapture;
+const InputSource = types.InputSource;
+
+pub const Rename = struct {
+    from: FileSpec,
+    to: FileSpec,
+
+    pub fn eval(rename: Rename, allocator: Allocator, output_capture: ?*OutputCapture, input_source: ?*InputSource) !CommandStatus {
+        _ = allocator;
+        _ = input_source;
+
+        const from_path = switch (rename.from) {
+            .Con, .Lpt1, .Lpt2, .Lpt3, .Prn => {
+                const error_msg = "Cannot rename device\n";
+                if (output_capture) |capture| {
+                    try capture.write(error_msg);
+                } else {
+                    print("{s}", .{error_msg});
+                }
+                return CommandStatus{ .Code = 1 };
+            },
+            .Path => |path| path,
+        };
+
+        const to_path = switch (rename.to) {
+            .Con, .Lpt1, .Lpt2, .Lpt3, .Prn => {
+                const error_msg = "Cannot rename to device\n";
+                if (output_capture) |capture| {
+                    try capture.write(error_msg);
+                } else {
+                    print("{s}", .{error_msg});
+                }
+                return CommandStatus{ .Code = 1 };
+            },
+            .Path => |path| path,
+        };
+
+        std.fs.cwd().rename(from_path, to_path) catch |err| {
+            const error_msg = switch (err) {
+                error.FileNotFound => "The system cannot find the file specified\n",
+                error.AccessDenied => "Access denied\n",
+                error.PathAlreadyExists => "A duplicate file name exists, or the file cannot be found\n",
+                error.RenameAcrossMountPoints => "Cannot rename across different drives\n",
+                else => "Cannot rename file\n",
+            };
+            if (output_capture) |capture| {
+                try capture.write(error_msg);
+            } else {
+                print("{s}", .{error_msg});
+            }
+            return CommandStatus{ .Code = 1 };
+        };
+
+        // No output for successful rename (DOS style)
+        return CommandStatus{ .Code = 0 };
+    }
+};