fix: add go_sum support to resolve Go module dependency errors

- Added go_sum attribute to go_wasm_component rule
- Updated setup_go_module_action to include go.sum files in workspace
- Fixed all go_component targets to specify go_sum parameter
- Removed unused cm import from calculator_main.go

This resolves the CI failures:
- main.go:4:2: go.bytecodealliance.org/[email protected]: missing go.sum entry
- calculator_main.go:4:2: missing go.sum entry for module

Note: WIT dependency issues with wasi:io/streams still need to be addressed

Author: avrabe

examples/go_component/BUILD.bazel

@@ -51,11 +51,12 @@ go_wasm_component(
     name = "calculator_component",
     srcs = [
         "calculator.go",
-        "main.go",
+        "calculator_main.go",
         "utils.go",
     ],
     adapter = "//wasm/adapters:wasi_snapshot_preview1",
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     wit = ":calculator_wit",
     world = "calculator-world",
@@ -66,6 +67,7 @@ go_wasm_component(
     name = "calculator_simple",
     srcs = ["calculator_main.go"],
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     wit = ":calculator_wit",
     world = "calculator-world",
@@ -76,6 +78,7 @@ go_wasm_component(
     name = "calculator_with_bindings",
     srcs = ["calculator_with_bindings.go"],
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     wit = ":calculator_wit",
     world = "calculator-world",
@@ -86,6 +89,7 @@ go_wasm_component(
     name = "calculator_simple_binding",
     srcs = ["calculator_simple_binding.go"],
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     wit = ":simple_calculator_wit",
     world = "calculator-world",
@@ -96,6 +100,7 @@ go_wasm_component(
     name = "calculator_manual",
     srcs = ["calculator_manual.go"],
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     # Remove WIT temporarily to test basic build
     # wit = ":simple_calculator_wit",
@@ -113,6 +118,7 @@ go_wasm_component(
     ],
     adapter = "//wasm/adapters:wasi_snapshot_preview1",
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     world = "wasi:cli/command",
 )
@@ -127,6 +133,7 @@ go_wasm_component(
     ],
     adapter = "//wasm/adapters:wasi_snapshot_preview1",
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "debug",
     world = "wasi:cli/command",
 )
@@ -140,6 +147,7 @@ go_wasm_component(
     ],  # Include simple_wasi.go (no WIT deps) and utils.go
     adapter = "//wasm/adapters:wasi_snapshot_preview1",
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "debug",
     world = "wasi:cli/command",
 )
@@ -150,6 +158,7 @@ go_wasm_component(
     name = "simple_wasi",
     srcs = ["simple_wasi.go"],
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "release",
     # No WIT or world specified - just basic WASI support
 )
@@ -163,6 +172,7 @@ go_wasm_component(
     ],
     adapter = "//wasm/adapters:wasi_snapshot_preview1",
     go_mod = "go.mod",
+    go_sum = "go.sum",
     optimization = "debug",
     world = "wasi:cli/command",
 )

examples/go_component/calculator_main.go

@@ -1,9 +1,5 @@
 package main
 
-import (
-	"go.bytecodealliance.org/cm"
-)
-
 // This will be replaced with proper generated bindings from wit-bindgen-go
 // For now, we'll use a simplified approach that works with TinyGo's WIT support
 

go/defs.bzl

@@ -346,6 +346,7 @@ def _prepare_go_module(ctx, tinygo_toolchain):
         ctx,
         sources = ctx.files.srcs,  # Use original sources, bindings handled separately
         go_mod = ctx.file.go_mod,
+        go_sum = ctx.file.go_sum,
         wit_file = wit_file,
         bindings_dir = bindings_dir_file,
         go_binary = go_binary,  # Pass Go binary for dependency resolution
@@ -609,6 +610,10 @@ go_wasm_component = rule(
             allow_single_file = ["go.mod"],
             doc = "Go module file",
         ),
+        "go_sum": attr.label(
+            allow_single_file = ["go.sum"],
+            doc = "Go module checksum file",
+        ),
         "wit": attr.label(
             providers = [WitInfo],
             doc = "WIT library for binding generation",

tools/bazel_helpers/file_ops_actions.bzl

@@ -272,13 +272,14 @@ def prepare_workspace_action(ctx, config):
 
     return workspace_dir
 
-def setup_go_module_action(ctx, sources, go_mod = None, wit_file = None, bindings_dir = None, go_binary = None):
+def setup_go_module_action(ctx, sources, go_mod = None, go_sum = None, wit_file = None, bindings_dir = None, go_binary = None):
     """Set up a Go module workspace for TinyGo compilation
 
     Args:
         ctx: Bazel rule context
         sources: List of Go source files
         go_mod: Optional go.mod file
+        go_sum: Optional go.sum file
         wit_file: Optional WIT file for binding generation
         bindings_dir: Optional generated WIT bindings directory
         go_binary: Optional hermetic Go binary for dependency resolution
@@ -303,6 +304,13 @@ def setup_go_module_action(ctx, sources, go_mod = None, wit_file = None, binding
             "preserve_permissions": False,
         })
 
+    if go_sum:
+        config["dependencies"].append({
+            "source": go_sum,
+            "destination": "go.sum",
+            "preserve_permissions": False,
+        })
+
     if wit_file:
         # CRITICAL FIX: TinyGo and wasm-tools expect WIT file in wit/ subdirectory
         # with the original filename (preserve the actual file name)