Add init_submodules to git_override

This is slightly different from the starlark version which has a separate init_submodules and recursive_init_submodules for historical reasons.

Closes #20937.

PiperOrigin-RevId: 600337195
Change-Id: I6e26d58f442d3e2c85feee20c14017b5a13fa588

src/main/java/com/google/devtools/build/lib/bazel/bzlmod/GitOverride.java

@@ -31,8 +31,10 @@ public static GitOverride create(
       String commit,
       ImmutableList<String> patches,
       ImmutableList<String> patchCmds,
-      int patchStrip) {
-    return new AutoValue_GitOverride(remote, commit, patches, patchCmds, patchStrip);
+      int patchStrip,
+      boolean initSubmodules) {
+    return new AutoValue_GitOverride(
+        remote, commit, patches, patchCmds, patchStrip, initSubmodules);
   }
 
   /** The URL pointing to the git repository. */
@@ -50,6 +52,9 @@ public static GitOverride create(
   /** The number of path segments to strip from the paths in the supplied patches. */
   public abstract int getPatchStrip();
 
+  /** Whether submodules in the fetched repo should be recursively initialized. */
+  public abstract boolean getInitSubmodules();
+
   /** Returns the {@link RepoSpec} that defines this repository. */
   @Override
   public RepoSpec getRepoSpec(RepositoryName repoName) {
@@ -60,7 +65,9 @@ public RepoSpec getRepoSpec(RepositoryName repoName) {
         .put("commit", getCommit())
         .put("patches", getPatches())
         .put("patch_cmds", getPatchCmds())
-        .put("patch_args", ImmutableList.of("-p" + getPatchStrip()));
+        .put("patch_args", ImmutableList.of("-p" + getPatchStrip()))
+        .put("init_submodules", getInitSubmodules())
+        .put("recursive_init_submodules", getInitSubmodules());
     return RepoSpec.builder()
         .setBzlFile(GIT_REPOSITORY_PATH)
         .setRuleClassName("git_repository")

src/main/java/com/google/devtools/build/lib/bazel/bzlmod/ModuleFileGlobals.java

@@ -1038,14 +1038,21 @@ public void archiveOverride(
             named = true,
             positional = false,
             defaultValue = "0"),
+        @Param(
+            name = "init_submodules",
+            doc = "Whether submodules in the fetched repo should be recursively initialized.",
+            named = true,
+            positional = false,
+            defaultValue = "False"),
       })
   public void gitOverride(
       String moduleName,
       String remote,
       String commit,
       Iterable<?> patches,
       Iterable<?> patchCmds,
-      StarlarkInt patchStrip)
+      StarlarkInt patchStrip,
+      boolean initSubmodules)
       throws EvalException {
     hadNonModuleCall = true;
     addOverride(
@@ -1055,7 +1062,8 @@ public void gitOverride(
             commit,
             Sequence.cast(patches, String.class, "patches").getImmutableList(),
             Sequence.cast(patchCmds, String.class, "patchCmds").getImmutableList(),
-            patchStrip.toInt("git_override.patch_strip")));
+            patchStrip.toInt("git_override.patch_strip"),
+            initSubmodules));
   }
 
   @StarlarkMethod(