Add new validator tools subfolder and doc for building a command-line validator on Mac OS X

validator/README.md

@@ -21,10 +21,15 @@ A validator for the
 
 This is a very first release, rough on the edges. Fasten your seatbelts.
 
-Prerequisite: Linux Ubuntu 14 or similar
+Prerequisite: Linux Ubuntu 14 or similar, or Mac OS X 10.11.x or later
 
-Install these packages using apt-get:
+###Mac OS X
+
+See [Building a command-line AMP Validator: Mac OS X](https://github.com/ampproject/amphtml/blob/master/validator/docs/building_a_command_line_amp_validator_for_mac_os_x.md).
 
+###Linux
+
+Install these packages using apt-get:
 * npm
 * nodejs
 * openjdk-7-jre

validator/build.py

@@ -54,8 +54,8 @@ def CheckPrereqs():
   """Checks that various prerequisites for this script are satisfied."""
   logging.info('entering ...')
 
-  if platform.system() != 'Linux':
-    Die('Sorry, this script assumes Linux thus far, e.g. Ubuntu 14. '
+  if platform.system() != 'Linux' and platform.system() != 'Darwin':
+    Die('Sorry, this script assumes Linux or Mac OS X thus far. '
         'Please feel free to edit the source and fix it to your needs.')
 
   # Ensure source files are available.

validator/docs/building_a_command_line_amp_validator_for_mac_os_x.md

@@ -0,0 +1,181 @@
+#Building a command-line AMP Validator: Mac OS X
+
+## Purpose
+
+This documents how to build the official AMP-HTML command-line AMP Validator on Mac OS X. Once built in this fashion it can then be executed from a OS X terminal session to validate candidate HTML files over the local file system or the web as follows:
+
+No HTML file passed to the program:
+
+```
+$ node validate
+usage: validate <file.html or url>
+```
+
+Valid HTML file passed to the program:
+
+```
+$ node validate testdata/feature_tests/minimum_valid_amp.html
+PASS
+```
+
+Invalid HTML file passed to the program:
+
+```
+$ node validate testdata/feature_tests/empty.html
+FAIL
+empty.html:1:0 The mandatory tag 'html ⚡ for top-level html' is missing or incorrect. (see [https://github.com/ampproject/amphtml/blob/master/spec/amp-html-format.md#ampd])
+```
+
+## References
+- Development on AMP HTML 
+    - [https://github.com/ampproject/amphtml/blob/master/DEVELOPING.md](https://github.com/ampproject/amphtml/blob/master/DEVELOPING.md) 
+- AMP HTML ⚡ Validator 
+    - [https://github.com/ampproject/amphtml/blob/master/validator/README.md](https://github.com/ampproject/amphtml/blob/master/validator/README.md) 
+- Validating outside the browser - command line tool #937 
+    - [https://github.com/ampproject/amphtml/issues/937](https://github.com/ampproject/amphtml/issues/937) 
+
+## Dependencies and configuration
+
+### Homebrew
+
+#### Installing Homebrew
+
+See: [http://brew.sh/](http://brew.sh/)
+
+```
+$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+```
+
+#### Maintaining your Homebrew environment
+
+See GitHub Gist: [pietergreyling/mybrew.sh](https://gist.github.com/pietergreyling/43b00966f0a775a84ac8)
+
+```
+#!/bin/bash
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+#-- desc: To clean up and verify your Homebrew setup. 
+#-- exec: In a terminal session run: $ ./mybrew.sh
+clear
+echo "-- Updating your Homebrew installation at: " && brew --prefix
+sudo chown -R $(whoami):admin /usr/local
+brew update && brew upgrade
+echo "-- \$HOMEBREW_INSTALL: $HOMEBREW_INSTALL"
+brew prune
+brew doctor
+#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+```
+
+### Node JS
+
+```
+$ brew install node
+```
+
+### Edit /etc/hosts
+
+Not strictly initially necessary for the validator, but good not to forget:
+
+```
+127.0.0.1               ads.localhost iframe.localhost
+```
+
+### Google Protocol Buffers
+
+```
+$ brew tap homebrew/versions
+$ brew install protobuf --c++11
+$ brew link protobuf
+$ protoc --version
+libprotoc 2.6.1
+$ python
+Python 2.7.11 (default, Dec  5 2015, 14:44:53)
+>> import google.protobuf
+. . . exit if import worked . . .
+```
+
+### Getting a local working copy of the AMP repository source
+
+```
+$ cd my_amp_repo_work_directory
+$ git clone [https://github.com/ampproject/amphtml.git](https://github.com/ampproject/amphtml.git)
+$ cd amphtml
+$ npm install
+```
+
+### Updating an existing AMP repository source copy
+
+```
+$ cd my_amp_repo_work_directory/amphtml
+$ git pull origin master
+$ npm install
+```
+
+## Building the validator
+
+```
+$ cd validator
+$ npm install
+$ sudo python ./build.py
+[[build.py getNodeJsCmd]] - entering ...
+[[build.py getNodeJsCmd]] - ... done
+[[build.py CheckPrereqs]] - entering ...
+[[build.py CheckPrereqs]] - ... done
+[[build.py InstallNodeDependencies]] - entering ...
+amp_validator@0.1.0 .../amphtml/validator
+├── google-closure-compiler@20151015.0.0
+├── google-closure-library@20151015.0.0
+└─┬ jasmine@2.3.2
+  ├── exit@0.1.2
+  ├─┬ glob@3.2.11
+  │ ├── inherits@2.0.1
+  │ └─┬ minimatch@0.3.0
+  │   ├── lru-cache@2.7.3
+  │   └── sigmund@1.0.1
+  └── jasmine-core@2.3.4
+
+[[build.py InstallNodeDependencies]] - ... done
+[[build.py SetupOutDir]] - entering ...
+[[build.py SetupOutDir]] - ... done
+[[build.py GenValidatorPb2Py]] - entering ...
+[[build.py GenValidatorPb2Py]] - ... done
+[[build.py GenValidatorGeneratedJs]] - entering ...
+[[build.py GenValidatorGeneratedJs]] - ... done
+[[build.py CompileValidatorMinified]] - entering ...
+[[build.py CompileValidatorMinified]] - ... done
+[[build.py GenerateValidateBin]] - entering ...
+[[build.py GenerateValidateBin]] - ... done
+[[build.py RunSmokeTest]] - entering ...
+[[build.py RunSmokeTest]] - ... done
+[[build.py CompileValidatorTestMinified]] - entering ...
+[[build.py CompileValidatorTestMinified]] - ... success
+[[build.py CompileHtmlparserTestMinified]] - entering ...
+[[build.py CompileHtmlparserTestMinified]] - ... success
+[[build.py CompileParseCssTestMinified]] - entering ...
+[[build.py CompileParseCssTestMinified]] - ... success
+[[build.py GenerateTestRunner]] - entering ...
+[[build.py GenerateTestRunner]] - ... success
+[[build.py RunTests]] - entering ...
+Started
+...................................................................................
+83 specs, 0 failures
+Finished in 0.394 seconds
+[[build.py RunTests]] - ... success
+```
+
+## Running the validator (dist/validate)
+
+```
+$ ls -alG dist/validate
+-rwxr-x---  1  245040 Jan 21 14:47 dist/validate
+
+$ node dist/validate
+usage: validate <file.html or url>;
+
+$ node dist/validate testdata/feature_tests/minimum_valid_amp.html
+PASS
+
+$ node dist/validate testdata/feature_tests/empty.html
+FAIL
+empty.html:1:0 The mandatory tag 'html ⚡ for top-level html' is missing or incorrect. (see [https://github.com/ampproject/amphtml/blob/master/spec/amp-html-format.md#ampd])
+. . .
+```