feat(core): add --mode and --multi-major-mode flags to nx migrate

packages/nx/src/command-line/migrate/command-object.ts

@@ -84,14 +84,32 @@ function withMigrationOptions(yargs: Argv) {
       type: 'boolean',
       default: false,
     })
+    .option('mode', {
+      describe:
+        "Restrict which packages to migrate. Only applies when migrating Nx itself. 'first-party' processes only Nx and its plugins (the target package plus its nx.packageGroup); 'third-party' processes only the third-party dependencies referenced by Nx packageJsonUpdates entries, catching up on any updates that may have been skipped previously; 'all' processes everything. Defaults to 'all' (or prompts in an interactive terminal when targeting Nx).",
+      type: 'string',
+      choices: ['first-party', 'third-party', 'all'],
+    })
+    .option('multiMajorMode', {
+      describe:
+        "Skip the multi-major migration prompt/warning and pick how to handle the jump. 'direct' migrates straight to the requested target. 'gradual' migrates to the smallest recommended step (re-run `nx migrate` to continue toward the original target). Equivalent env var: NX_MULTI_MAJOR_MODE=direct|gradual.",
+      type: 'string',
+      choices: ['direct', 'gradual'],
+    })
     .check(
-      ({ createCommits, commitPrefix, from, excludeAppliedMigrations }) => {
+      ({
+        createCommits,
+        commitPrefix,
+        from,
+        excludeAppliedMigrations,
+        mode,
+      }) => {
         if (!createCommits && commitPrefix !== defaultCommitPrefix) {
           throw new Error(
             'Error: Providing a custom commit prefix requires --create-commits to be enabled'
           );
         }
-        if (excludeAppliedMigrations && !from) {
+        if (excludeAppliedMigrations && !from && mode !== 'third-party') {
           throw new Error(
             'Error: Excluding migrations that should have been previously applied requires --from to be set'
           );