Revert "Simplify ruby and gems dependency."

This reverts commit 83ad8dc3bcb25377674ce174e4bef08dd1b87f68.

Reason for revert: New error: Couldn't determine repo type for URL: `https://cdn.cocoapods.org/`: SSL_connect returned=1 errno=0 peeraddr=104.26.1.240:443 state=error: certificate verify failed (unable to get local issuer certificate)

Original change's description:
> Simplify ruby and gems dependency.
>
> This CL implements the following improvements:
>
> * Removes complexity of gems installation using a single code path to
> install and setup ruby.
> * Fixes support for ruby arm64.
> * Avoids the xcode ruby dependency.
> * Generalizes gems path calculation to support multiple version of ruby
>   simultaneously.
>
> Bug: https://github.com/flutter/flutter/issues/65888
> Bug: https://github.com/flutter/flutter/issues/113231
> Change-Id: Ia0f268d4b4433845b98173f383b5fc1d11bac714
> Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/38021
> Reviewed-by: Ricardo Amador <ricardoamador@google.com>
> Commit-Queue: Godofredo Contreras <godofredoc@google.com>

TBR=godofredoc@google.com,flutter-scoped@luci-project-accounts.iam.gserviceaccount.com,mohsinally@google.com,ricardoamador@google.com

Change-Id: I24122291c40dbaa125813b88f19111c9fb89b17e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/flutter/flutter/issues/65888
Bug: https://github.com/flutter/flutter/issues/113231
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/38060
Reviewed-by: Godofredo Contreras <godofredoc@google.com>
Commit-Queue: Godofredo Contreras <godofredoc@google.com>
diff --git a/recipe_modules/flutter_deps/__init__.py b/recipe_modules/flutter_deps/__init__.py
index ebbb8ec..f1dfa6e 100644
--- a/recipe_modules/flutter_deps/__init__.py
+++ b/recipe_modules/flutter_deps/__init__.py
@@ -9,7 +9,6 @@
     'recipe_engine/path',
     'recipe_engine/platform',
     'recipe_engine/properties',
-    'recipe_engine/raw_io',
     'recipe_engine/step',
     'recipe_engine/swarming',
 ]
diff --git a/recipe_modules/flutter_deps/api.py b/recipe_modules/flutter_deps/api.py
index c7db122..4ffd3d2 100644
--- a/recipe_modules/flutter_deps/api.py
+++ b/recipe_modules/flutter_deps/api.py
@@ -88,7 +88,7 @@
             '''.format(dependency)
         raise ValueError(msg)
       parsed_deps.append(dependency)
-      if dependency in ['xcode', 'gems', 'swift']:
+      if dependency in ['xcode', 'gems', 'swift', 'arm64ruby']:
         continue
       dep_funct = available_deps.get(dependency)
       if not dep_funct:
@@ -281,25 +281,27 @@
     # For more, see CI section on https://docs.gradle.org/current/userguide/gradle_daemon.html#sec:disabling_the_daemon
     env['GRADLE_OPTS'] = '-Dorg.gradle.daemon=false'
 
-  def _install_ruby(self, env, env_prefixes, version=None):
+  def arm64ruby(self, env, env_prefixes, gem_dir):
     """Installs arm64 Ruby.
 
     Context of arm64ruby:
       go/benchmarks-on-platforms
       https://github.com/flutter/flutter/issues/87508
     """
-    version = version or 'latest'
-    with self.m.step.nest('Install ruby'):
+    version = 'version:311_3'
+    with self.m.step.nest('Install arm64ruby'):
       ruby_path = self.m.path['cache'].join('ruby')
       ruby = self.m.cipd.EnsureFile()
-      ruby.add_package('flutter/ruby/${platform}', version)
+      ruby.add_package('flutter/ruby/mac-arm64', version)
       self.m.cipd.ensure(ruby_path, ruby)
       paths = env_prefixes.get('PATH', [])
       paths.insert(0, ruby_path.join('bin'))
       env['RUBY_HOME'] = ruby_path.join('bin')
+      env['GEM_HOME'] = gem_dir.join('ruby', '3.1.0')
+      paths.append(gem_dir.join('ruby', '3.1.0', 'bin'))
       env_prefixes['PATH'] = paths
 
-  def gems(self, env, env_prefixes, gem_dir, version=None):
+  def gems(self, env, env_prefixes, gemfile_dir):
     """Installs mac gems.
 
     Args:
@@ -308,45 +310,41 @@
       gemfile_dir(Path): The path to the location of the repository gemfile.
     """
     deps_list = self.m.properties.get('dependencies', [])
-    deps = {d['dependency']:d.get('version') for d in deps_list}
-    if 'gems' not in deps.keys():
+    deps = [d['dependency'] for d in deps_list]
+    if 'gems' not in deps:
       # Noop if gems property is not set.
       return
-    version = deps['gems']
-    gemfile_dir = gem_dir or self.m.repo_util.sdk_checkout_path().join('dev', 'ci', 'mac')
-    gem_destination = self.m.path['start_dir'].join('gems')
-    env['GEM_HOME'] = gem_destination
-    self._install_ruby(env, env_prefixes, version)
+    gem_file = self.m.repo_util.sdk_checkout_path().join('flutter')
+    gem_dir = self.m.path['start_dir'].join('gems')
+    env['GEM_HOME'] = gem_dir
+    if self.m.platform.arch == 'arm':
+      self.arm64ruby(env, env_prefixes, gem_dir)
     with self.m.step.nest('Install gems'):
-      self.m.file.ensure_directory('mkdir gems', gem_destination)
+      self.m.file.ensure_directory('mkdir gems', gem_dir)
+      # Temporarily install bundler
+      with self.m.context(cwd=gem_dir):
+        self.m.step(
+            'install bundler',
+            ['gem', 'install', 'bundler', '--install-dir', '.'],
+            infra_step=True,
+        )
       paths = env_prefixes.get('PATH', [])
       temp_paths = copy.deepcopy(paths)
-      temp_paths.insert(0, gem_dir.join('bin'))
+      temp_paths.append(gem_dir.join('bin'))
       env_prefixes['PATH'] = temp_paths
       with self.m.context(env=env, env_prefixes=env_prefixes, cwd=gemfile_dir):
         self.m.step(
-            'Set gems path',
-            ['bundle', 'config', 'set', 'path', gem_destination],
-            infra_step=True,
-        )
-        self.m.step(
-            'Set ffi build flags',
-            ['bundle', 'config',
-             'build.ffi', '--with-ldflags="-L%s/gmp/lib"' % self.m.path['cache'].join('ruby', 'opt')],
+            'set gems path',
+            ['bundle', 'config', 'set', 'path', gem_dir],
             infra_step=True,
         )
         self.m.step('install gems', ['bundler', 'install'], infra_step=True)
-      # Find major/minor ruby version
-      ruby_version = self.m.step(
-              'Ruby version', ['ruby', '-e', 'puts RUBY_PATCHLEVEL'],
-              stdout=self.m.raw_io.output_text(), ok_ret='any'
-              ).stdout.rstrip()
-      parts = ruby_version.split('.')
-      parts[-1] = '0'
-      ruby_version = '.'.join(parts)
-      paths.append(gem_destination.join('ruby', ruby_version, 'bin'))
       # Update envs to the final destination.
-      self.m.file.listdir('list bundle', gem_destination, recursive=True)
+      self.m.file.listdir('list bundle', gem_dir, recursive=True)
+      if self.m.platform.arch != 'arm':
+        env['GEM_HOME'] = gem_dir.join('ruby', '2.6.0')
+        paths.append(gem_dir.join('ruby', '2.6.0', 'bin'))
+      env_prefixes['PATH'] = paths
 
   def firebase(self, env, env_prefixes, version='latest'):
     """Installs firebase binary.
diff --git a/recipe_modules/flutter_deps/examples/full.expected/with-arm64ruby.json b/recipe_modules/flutter_deps/examples/full.expected/with-arm64ruby.json
index 201808e..782134b 100644
--- a/recipe_modules/flutter_deps/examples/full.expected/with-arm64ruby.json
+++ b/recipe_modules/flutter_deps/examples/full.expected/with-arm64ruby.json
@@ -839,7 +839,7 @@
   },
   {
     "cmd": [],
-    "name": "Install ruby"
+    "name": "Install arm64ruby"
   },
   {
     "cmd": [
@@ -848,7 +848,7 @@
       "-root",
       "[CACHE]/ruby",
       "-ensure-file",
-      "flutter/ruby/${platform} latest",
+      "flutter/ruby/mac-arm64 version:311_3",
       "-max-threads",
       "0",
       "-json-output",
@@ -871,15 +871,15 @@
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
       ]
     },
-    "name": "Install ruby.ensure_installed",
+    "name": "Install arm64ruby.ensure_installed",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@",
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-latest----------\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"flutter/ruby/resolved-platform\"@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-version:311_3---\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"package\": \"flutter/ruby/mac-arm64\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
       "@@@STEP_LOG_LINE@json.output@  }@@@",
@@ -928,6 +928,38 @@
   },
   {
     "cmd": [
+      "gem",
+      "install",
+      "bundler",
+      "--install-dir",
+      "."
+    ],
+    "cwd": "[START_DIR]/gems",
+    "env": {
+      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
+      "GIT_BRANCH": "",
+      "LUCI_BRANCH": "",
+      "LUCI_CI": "True",
+      "LUCI_PR": "",
+      "OS": "linux",
+      "PUB_CACHE": "[START_DIR]/.pub-cache",
+      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
+      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
+    },
+    "env_prefixes": {
+      "PATH": [
+        "[START_DIR]/flutter\\ sdk/bin",
+        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
+      ]
+    },
+    "infra_step": true,
+    "name": "Install gems.install bundler",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
       "bundle",
       "config",
       "set",
@@ -937,7 +969,7 @@
     "cwd": "[START_DIR]/dev/ci/mac",
     "env": {
       "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GEM_HOME": "[START_DIR]/gems",
+      "GEM_HOME": "[START_DIR]/gems/ruby/3.1.0",
       "GIT_BRANCH": "",
       "LUCI_BRANCH": "",
       "LUCI_CI": "True",
@@ -950,53 +982,17 @@
     },
     "env_prefixes": {
       "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
         "[CACHE]/ruby/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
+        "[START_DIR]/gems/ruby/3.1.0/bin",
+        "[START_DIR]/gems/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
       ]
     },
     "infra_step": true,
-    "name": "Install gems.Set gems path",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "bundle",
-      "config",
-      "build.ffi",
-      "--with-ldflags=\"-L[CACHE]/ruby/opt/gmp/lib\""
-    ],
-    "cwd": "[START_DIR]/dev/ci/mac",
-    "env": {
-      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GEM_HOME": "[START_DIR]/gems",
-      "GIT_BRANCH": "",
-      "LUCI_BRANCH": "",
-      "LUCI_CI": "True",
-      "LUCI_PR": "",
-      "OS": "linux",
-      "PUB_CACHE": "[START_DIR]/.pub-cache",
-      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "RUBY_HOME": "[CACHE]/ruby/bin",
-      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
-    },
-    "env_prefixes": {
-      "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
-        "[CACHE]/ruby/bin",
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
-      ]
-    },
-    "infra_step": true,
-    "name": "Install gems.Set ffi build flags",
+    "name": "Install gems.set gems path",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
@@ -1009,7 +1005,7 @@
     "cwd": "[START_DIR]/dev/ci/mac",
     "env": {
       "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GEM_HOME": "[START_DIR]/gems",
+      "GEM_HOME": "[START_DIR]/gems/ruby/3.1.0",
       "GIT_BRANCH": "",
       "LUCI_BRANCH": "",
       "LUCI_CI": "True",
@@ -1022,10 +1018,11 @@
     },
     "env_prefixes": {
       "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
         "[CACHE]/ruby/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
+        "[START_DIR]/gems/ruby/3.1.0/bin",
+        "[START_DIR]/gems/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
       ]
@@ -1038,34 +1035,6 @@
   },
   {
     "cmd": [
-      "ruby",
-      "-e",
-      "puts RUBY_PATCHLEVEL"
-    ],
-    "env": {
-      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GIT_BRANCH": "",
-      "LUCI_BRANCH": "",
-      "LUCI_CI": "True",
-      "LUCI_PR": "",
-      "OS": "linux",
-      "PUB_CACHE": "[START_DIR]/.pub-cache",
-      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
-    },
-    "env_prefixes": {
-      "PATH": [
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
-      ]
-    },
-    "name": "Install gems.Ruby version",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
       "vpython3",
       "-u",
       "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
diff --git a/recipe_modules/flutter_deps/examples/full.expected/with-gems.json b/recipe_modules/flutter_deps/examples/full.expected/with-gems.json
index 2d7f3b9..d9c7054 100644
--- a/recipe_modules/flutter_deps/examples/full.expected/with-gems.json
+++ b/recipe_modules/flutter_deps/examples/full.expected/with-gems.json
@@ -839,56 +839,6 @@
   },
   {
     "cmd": [],
-    "name": "Install ruby"
-  },
-  {
-    "cmd": [
-      "cipd",
-      "ensure",
-      "-root",
-      "[CACHE]/ruby",
-      "-ensure-file",
-      "flutter/ruby/${platform} v3.1.3",
-      "-max-threads",
-      "0",
-      "-json-output",
-      "/path/to/tmp/json"
-    ],
-    "env": {
-      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GIT_BRANCH": "",
-      "LUCI_BRANCH": "",
-      "LUCI_CI": "True",
-      "LUCI_PR": "",
-      "OS": "linux",
-      "PUB_CACHE": "[START_DIR]/.pub-cache",
-      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
-    },
-    "env_prefixes": {
-      "PATH": [
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
-      ]
-    },
-    "name": "Install ruby.ensure_installed",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
-      "@@@STEP_LOG_LINE@json.output@{@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-v3.1.3----------\", @@@",
-      "@@@STEP_LOG_LINE@json.output@        \"package\": \"flutter/ruby/resolved-platform\"@@@",
-      "@@@STEP_LOG_LINE@json.output@      }@@@",
-      "@@@STEP_LOG_LINE@json.output@    ]@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@}@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
-  },
-  {
-    "cmd": [],
     "name": "Install gems"
   },
   {
@@ -928,6 +878,38 @@
   },
   {
     "cmd": [
+      "gem",
+      "install",
+      "bundler",
+      "--install-dir",
+      "."
+    ],
+    "cwd": "[START_DIR]/gems",
+    "env": {
+      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
+      "GIT_BRANCH": "",
+      "LUCI_BRANCH": "",
+      "LUCI_CI": "True",
+      "LUCI_PR": "",
+      "OS": "linux",
+      "PUB_CACHE": "[START_DIR]/.pub-cache",
+      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
+      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
+    },
+    "env_prefixes": {
+      "PATH": [
+        "[START_DIR]/flutter\\ sdk/bin",
+        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
+      ]
+    },
+    "infra_step": true,
+    "name": "Install gems.install bundler",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
       "bundle",
       "config",
       "set",
@@ -945,58 +927,19 @@
       "OS": "linux",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "RUBY_HOME": "[CACHE]/ruby/bin",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
     },
     "env_prefixes": {
       "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
-        "[CACHE]/ruby/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
+        "[START_DIR]/gems/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
       ]
     },
     "infra_step": true,
-    "name": "Install gems.Set gems path",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "bundle",
-      "config",
-      "build.ffi",
-      "--with-ldflags=\"-L[CACHE]/ruby/opt/gmp/lib\""
-    ],
-    "cwd": "[START_DIR]/dev/ci/mac",
-    "env": {
-      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GEM_HOME": "[START_DIR]/gems",
-      "GIT_BRANCH": "",
-      "LUCI_BRANCH": "",
-      "LUCI_CI": "True",
-      "LUCI_PR": "",
-      "OS": "linux",
-      "PUB_CACHE": "[START_DIR]/.pub-cache",
-      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "RUBY_HOME": "[CACHE]/ruby/bin",
-      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
-    },
-    "env_prefixes": {
-      "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
-        "[CACHE]/ruby/bin",
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
-      ]
-    },
-    "infra_step": true,
-    "name": "Install gems.Set ffi build flags",
+    "name": "Install gems.set gems path",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
@@ -1017,15 +960,13 @@
       "OS": "linux",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "RUBY_HOME": "[CACHE]/ruby/bin",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
     },
     "env_prefixes": {
       "PATH": [
-        "[START_DIR]/dev/ci/mac/bin",
-        "[CACHE]/ruby/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin",
+        "[START_DIR]/gems/bin",
         "[START_DIR]/flutter\\ sdk/bin",
         "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
       ]
@@ -1038,34 +979,6 @@
   },
   {
     "cmd": [
-      "ruby",
-      "-e",
-      "puts RUBY_PATCHLEVEL"
-    ],
-    "env": {
-      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
-      "GIT_BRANCH": "",
-      "LUCI_BRANCH": "",
-      "LUCI_CI": "True",
-      "LUCI_PR": "",
-      "OS": "linux",
-      "PUB_CACHE": "[START_DIR]/.pub-cache",
-      "REVISION": "12345abcde12345abcde12345abcde12345abcde",
-      "SDK_CHECKOUT_PATH": "[START_DIR]/flutter\\ sdk"
-    },
-    "env_prefixes": {
-      "PATH": [
-        "[START_DIR]/flutter\\ sdk/bin",
-        "[START_DIR]/flutter\\ sdk/bin/cache/dart-sdk/bin"
-      ]
-    },
-    "name": "Install gems.Ruby version",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
-  },
-  {
-    "cmd": [
       "vpython3",
       "-u",
       "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
diff --git a/recipe_modules/flutter_deps/examples/full.py b/recipe_modules/flutter_deps/examples/full.py
index 422ae00..12f3bf7 100644
--- a/recipe_modules/flutter_deps/examples/full.py
+++ b/recipe_modules/flutter_deps/examples/full.py
@@ -90,7 +90,7 @@
       api.repo_util.flutter_environment_data(checkout_path),
   )
   yield api.test(
-      'with-gems', api.properties(dependencies=[{"dependency": "gems", "version": "v3.1.3"}]),
+      'with-gems', api.properties(dependencies=[{"dependency": "gems"}]),
       api.repo_util.flutter_environment_data(checkout_path),
   )