Support building Observatory in mojo tree

runtime/observatory/BUILD.gn

Index: runtime/observatory/BUILD.gn
diff --git a/runtime/observatory/BUILD.gn b/runtime/observatory/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..701e06df37acf44ceb7824b1f0594037a26852ce
--- /dev/null
+++ b/runtime/observatory/BUILD.gn
@@ -0,0 +1,129 @@
+# Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+observatory_sources_gypi =
+    exec_script("../../tools/gypi_to_gn.py",
+                [rebase_path("observatory_sources.gypi")],
+                "scope",
+                ["observatory_sources.gypi"])
+
+copy("copy_observatory") {
+  sources = observatory_sources_gypi.sources
+  outputs = [
+    "$root_gen_dir/observatory_copy/{{source_root_relative_dir}}/{{source_file_part}}",
+  ]
+}
+
+action("rewrite_observatory_pubspec_yaml") {
+  deps = [
+    ":copy_observatory"
+  ]
+
+  script = "../../tools/observatory_tool.py"
+
+  inputs = [
+    "pubspec.yaml"
+  ]
+
+  args = [
+    "--pub-executable",
+    rebase_path("../../../third_party/dart-sdk/dart-sdk/bin/pub"),

[zra, 2015/03/30 19:50:03]

I think we generally don't want code in the dart tree that is specific to Mojo
or the Mojo directory layout.

[Cutch, 2015/03/30 20:16:38]

Done.

+    "--directory",
+    rebase_path("$root_gen_dir/observatory_copy/dart/runtime/observatory/"),
+    "--command",
+    "rewrite",
+    rebase_path("pubspec.yaml"),
+    rebase_path("$root_gen_dir/observatory_copy/dart/runtime/observatory/pubspec.yaml"),
+    "../../third_party/",
+    rebase_path("../../../dart/third_party/")
+  ]
+
+  outputs = [
+    "$root_gen_dir/observatory_copy/dart/runtime/observatory/pubspec.yaml"
+  ]
+}
+
+action("fetch_observatory_deps") {
+  deps = [
+    ":write_observatory_pubspec_yaml"
+  ]
+
+  script = "../../tools/observatory_tool.py"
+
+  inputs = [
+    script,
+    "$root_gen_dir/observatory_copy/dart/runtime/observatory/pubspec.yaml"
+  ]
+
+  args = [
+    "--pub-executable",
+    rebase_path("../../../third_party/dart-sdk/dart-sdk/bin/pub"),

[zra, 2015/03/30 19:50:03]

ditto

+    "--directory",
+    rebase_path("$root_gen_dir/observatory_copy/dart/runtime/observatory/"),
+    "--command",
+    "get",
+  ]
+
+  outputs = [
+    "$root_gen_dir/observatory_copy/dart/runtime/observatory/pubspec.lock"
+  ]
+}
+
+action("pub_build_observatory") {
+  sources = rebase_path(observatory_sources_gypi.sources)
+  deps = [
+    ":fetch_observatory_deps"
+  ]
+
+  script = "../../tools/observatory_tool.py"
+
+  inputs = [
+    script
+  ]
+  inputs += observatory_sources_gypi.sources
+
+  args = [
+    "--pub-executable",
+    rebase_path("../../../third_party/dart-sdk/dart-sdk/bin/pub"),

[zra, 2015/03/30 19:50:03]

ditto

+    "--directory",
+    rebase_path("$root_gen_dir/observatory_copy/dart/runtime/observatory/"),
+    "--command",
+    "build",
+    rebase_path("$root_out_dir/observatory/build")
+  ]
+
+  outputs = [
+    "$root_out_dir/observatory/build/web/index.html",
+    "$root_out_dir/observatory/build/web/index.html_bootstrap.dart.js",
+  ]
+}
+
+
+action("deploy_observatory") {
+  deps = [
+    ":pub_build_observatory"
+  ]
+
+  script = "../../tools/observatory_tool.py"
+
+  inputs = [
+    script,
+    "$root_out_dir/observatory/build/web/index.html",
+    "$root_out_dir/observatory/build/web/index.html_bootstrap.dart.js",
+  ]
+
+  args = [
+    "--pub-executable",
+    rebase_path("../../../third_party/dart-sdk/dart-sdk/bin/pub"),

[zra, 2015/03/30 19:50:03]

ditto

+    "--directory",
+    rebase_path("$root_out_dir/observatory"),
+    "--command",
+    "deploy",
+  ]
+
+  outputs = [
+    "$root_out_dir/observatory/deployed/web/index.html",
+    "$root_out_dir/observatory/deployed/web/index.html_bootstrap.dart.js",
+  ]
+}