chore: update templates (#168)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* chore: add 3.9 to noxfile template

Since the python-docs-samples noxfile-template doesn't sync with this, I wanted to make sure the noxfile template matched the most recent change [here](https://github.com/GoogleCloudPlatform/python-docs-samples/pull/4968/files)

cc @tmatsuo

Source-Author: Leah E. Cole <[email protected]>
Source-Date: Fri Jan 15 17:24:05 2021 -0800
Source-Repo: googleapis/synthtool
Source-Sha: 56ddc68f36b32341e9f22c2c59b4ce6aa3ba635f
Source-Link: googleapis/synthtool@56ddc68

* build(python): make `NOX_SESSION` optional

I added this accidentally in #889. `NOX_SESSION` should be passed down if it is set but not marked required.

Source-Author: Bu Sun Kim <[email protected]>
Source-Date: Tue Jan 19 09:38:04 2021 -0700
Source-Repo: googleapis/synthtool
Source-Sha: ba960d730416fe05c50547e975ce79fcee52c671
Source-Link: googleapis/synthtool@ba960d7

* chore: Add header checker config to python library synth

Now that we have it working in [python-docs-samples](https://github.com/GoogleCloudPlatform/python-docs-samples/blob/master/.github/header-checker-lint.yml) we should consider adding it to the 🐍 libraries :)

Source-Author: Leah E. Cole <[email protected]>
Source-Date: Mon Jan 25 13:24:08 2021 -0800
Source-Repo: googleapis/synthtool
Source-Sha: 573f7655311b553a937f9123bee17bf78497db95
Source-Link: googleapis/synthtool@573f765

* chore: add noxfile parameters for extra dependencies

Also, add tests for some noxfile parameters for assurance that the
template generates valid Python.

Co-authored-by: Jeffrey Rennie <[email protected]>

Source-Author: Tim Swast <[email protected]>
Source-Date: Tue Jan 26 12:26:57 2021 -0600
Source-Repo: googleapis/synthtool
Source-Sha: 778d8beae28d6d87eb01fdc839a4b4d966ed2ebe
Source-Link: googleapis/synthtool@778d8be

Author: yoshi-automation

.github/header-checker-lint.yml

@@ -0,0 +1,15 @@
+{"allowedCopyrightHolders": ["Google LLC"],
+ "allowedLicenses": ["Apache-2.0", "MIT", "BSD-3"],
+ "ignoreFiles": ["**/requirements.txt", "**/requirements-test.txt"],
+ "sourceFileExtensions": [
+ 	"ts", 
+ 	"js", 
+ 	"java", 
+ 	"sh", 
+ 	"Dockerfile", 
+ 	"yaml", 
+ 	"py",
+ 	"html",
+ 	"txt"
+ ]
+}

.trampolinerc

@@ -18,7 +18,6 @@
 required_envvars+=(
     "STAGING_BUCKET"
     "V2_STAGING_BUCKET"
-    "NOX_SESSION"
 )
 
 # Add env vars which are passed down into the container here.

logging-v2-py.tar.gz

@@ -84,6 +84,7 @@ def default(session):
     session.install("asyncmock", "pytest-asyncio")
 
     session.install("mock", "pytest", "pytest-cov", "flask", "webob", "django")
+
     session.install("-e", ".")
 
     # Run py.test against the unit tests.

noxfile.py

@@ -85,7 +85,7 @@ def get_pytest_env_vars() -> Dict[str, str]:
 
 # DO NOT EDIT - automatically generated.
 # All versions used to tested samples.
-ALL_VERSIONS = ["2.7", "3.6", "3.7", "3.8"]
+ALL_VERSIONS = ["2.7", "3.6", "3.7", "3.8", "3.9"]
 
 # Any default versions that should be ignored.
 IGNORED_VERSIONS = TEST_CONFIG['ignored_versions']

samples/snippets/noxfile.py

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-logging.git",
-        "sha": "c89dea4899a2fd7175c2849f158fb921fc017a15"
+        "sha": "3d765ae66979ae066bcea07fe9ca01008ec4e4d7"
       }
     },
     {
@@ -19,14 +19,14 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
+        "sha": "778d8beae28d6d87eb01fdc839a4b4d966ed2ebe"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
+        "sha": "778d8beae28d6d87eb01fdc839a4b4d966ed2ebe"
       }
     }
   ],
@@ -49,6 +49,7 @@
     ".github/ISSUE_TEMPLATE/feature_request.md",
     ".github/ISSUE_TEMPLATE/support_request.md",
     ".github/PULL_REQUEST_TEMPLATE.md",
+    ".github/header-checker-lint.yml",
     ".github/release-please.yml",
     ".github/snippet-bot.yml",
     ".gitignore",
@@ -131,7 +132,6 @@
     "google/cloud/logging_v2/types/logging.py",
     "google/cloud/logging_v2/types/logging_config.py",
     "google/cloud/logging_v2/types/logging_metrics.py",
-    "logging-v2-py.tar.gz",
     "mypy.ini",
     "noxfile.py",
     "renovate.json",