Get started codelab: use code excerpter to sync code (#2027)

Author: chalin

.gitmodules

@@ -6,3 +6,6 @@
 	path = flutter
 	url = https://github.com/flutter/flutter
 	branch = beta
+[submodule "examples/codelabs"]
+	path = examples/codelabs
+	url = https://github.com/flutter/codelabs

build.excerpt.yaml

@@ -0,0 +1,15 @@
+targets:
+  $default:
+    sources:
+      include:
+        - examples/**
+      exclude:
+        - '**/.*/**'
+        - '**/android/**'
+        - '**/build/**'
+        - '**/ios/**'
+        - '**/node_modules/**'
+        - '**/*.jar'
+    builders:
+      code_excerpter|code_excerpter:
+        enabled: true

examples/codelabs

@@ -7,7 +7,7 @@ packages:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.32.6"
+    version: "0.34.0"
   args:
     dependency: transitive
     description:
@@ -28,7 +28,7 @@ packages:
       name: build
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.8"
+    version: "1.0.2"
   build_config:
     dependency: transitive
     description:
@@ -49,14 +49,14 @@ packages:
       name: build_runner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.10.3"
+    version: "1.1.2"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "1.1.2"
   built_collection:
     dependency: transitive
     description:
@@ -70,7 +70,7 @@ packages:
       name: built_value
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.1.6"
+    version: "6.2.0"
   charcode:
     dependency: transitive
     description:
@@ -99,10 +99,10 @@ packages:
     description:
       path: "."
       ref: HEAD
-      resolved-ref: "271e692bb0fd7886be65c441ee2849ccadf61b2f"
+      resolved-ref: d81e903a36bd36532fcbf85ba38c679ce264e6e3
       url: "https://github.com/chalin/code_excerpter.git"
     source: git
-    version: "0.4.1"
+    version: "0.6.0"
   collection:
     dependency: transitive
     description:
@@ -144,7 +144,7 @@ packages:
       name: dart_style
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.3"
+    version: "1.2.2"
   fixnum:
     dependency: transitive
     description:
@@ -158,7 +158,7 @@ packages:
       name: front_end
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.4+2"
+    version: "0.1.7"
   glob:
     dependency: transitive
     description:
@@ -214,14 +214,14 @@ packages:
       name: json_annotation
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "2.0.0"
   kernel:
     dependency: transitive
     description:
       name: kernel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.4+2"
+    version: "0.3.7"
   linkcheck:
     dependency: "direct dev"
     description:
@@ -277,7 +277,7 @@ packages:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.4.0"
   plugin:
     dependency: transitive
     description:
@@ -412,4 +412,4 @@ packages:
     source: hosted
     version: "2.1.15"
 sdks:
-  dart: ">=2.0.0 <3.0.0"
+  dart: ">=2.1.0-dev.5.0 <3.0.0"

pubspec.lock

@@ -30,3 +30,24 @@
 @import '_404';
 
 @import 'site_overrides';
+
+
+.numbered-code-notes {
+  list-style-type: none;
+  padding-left: 0;
+  display: table;
+  li {
+    counter-increment: code-note-counter;
+    display: table-row;
+    padding-left: 8px;
+    &:before {
+      font-family: $font-family-monospace;
+      content: '/*' counter(code-note-counter) '*/' ;
+      display: table-cell;
+      text-align: right;
+      color: $teal;
+      padding-right: $font-size-base / 2;
+      // background-color: lightyellow;
+    }
+  }
+}