Python 3 (#153)

* Convert all Python2 to Python3 syntax.

* Removes oauth2lib dependency

* Replace mockredis with fakeredis

* byte/str conversions

* Removes nonexisting __nonzero__ in Python3

* Python3 Dockerfile and related

* [PROJQUAY-98] Replace resumablehashlib with rehash

* PROJQUAY-123 - replace gpgme with python3-gpg

* [PROJQUAY-135] Fix unhashable class error

* Update external dependencies for Python 3

- Move github.com/app-registry/appr to github.com/quay/appr
- github.com/coderanger/supervisor-stdout
- github.com/DevTable/container-cloud-config
- Update to latest mockldap with changes applied from coreos/mockldap
- Update dependencies in requirements.txt and requirements-dev.txt

* Default FLOAT_REPR function to str in json encoder and removes keyword assignment

True, False, and str were not keywords in Python2...

* [PROJQUAY-165] Replace package `bencode` with `bencode.py`

- Bencode is not compatible with Python 3.x and is no longer
  maintained. Bencode.py appears to be a drop-in replacement/fork
  that is compatible with Python 3.

* Make sure monkey.patch is called before anything else (

* Removes anunidecode dependency and replaces it with text_unidecode

* Base64 encode/decode pickle dumps/loads when storing value in DB

Base64 encodes/decodes the serialized values when storing them in the
DB. Also make sure to return a Python3 string instead of a Bytes when
coercing for db, otherwise, Postgres' TEXT field will convert it into
a hex representation when storing the value.

* Implement __hash__ on Digest class

In Python 3, if a class defines __eq__() but not __hash__(), its
instances will not be usable as items in hashable collections (e.g sets).

* Remove basestring check

* Fix expected message in credentials tests

* Fix usage of Cryptography.Fernet for Python3 (#219)

- Specifically, this addresses the issue where Byte<->String
  conversions weren't being applied correctly.

* Fix utils

- tar+stream layer format utils
- filelike util

* Fix storage tests

* Fix endpoint tests

* Fix workers tests

* Fix docker's empty layer bytes

* Fix registry tests

* Appr

* Enable CI for Python 3.6

* Skip buildman tests

Skip buildman tests while it's being rewritten to allow ci to pass.

* Install swig for CI

* Update expected exception type in redis validation test

* Fix gpg signing calls

Fix gpg calls for updated gpg wrapper, and add signing tests.

* Convert / to // for Python3 integer division

* WIP: Update buildman to use asyncio instead of trollius.

This dependency is considered deprecated/abandoned and was only
used as an implementation/backport of asyncio on Python 2.x
This is a work in progress, and is included in the PR just to get the
rest of the tests passing. The builder is actually being rewritten.

* Target Python 3.8

* Removes unused files

- Removes unused files that were added accidentally while rebasing
- Small fixes/cleanup
- TODO tasks comments

* Add TODO to verify rehash backward compat with resumablehashlib

* Revert "[PROJQUAY-135] Fix unhashable class error" and implements __hash__ instead.

This reverts commit 735e38e3c1d072bf50ea864bc7e119a55d3a8976.
Instead, defines __hash__ for encryped fields class, using the parent
field's implementation.

* Remove some unused files ad imports

Co-authored-by: Kenny Lee Sin Cheong <kenny.lee@redhat.com>
Co-authored-by: Tom McKay <thomasmckay@redhat.com>

endpoints/api/trigger.py

@@ -3,7 +3,7 @@ Create, list and manage build triggers.
 """
 
 import logging
-from urlparse import urlunparse
+from urllib.parse import urlunparse
 
 from flask import request, url_for
 
@@ -223,7 +223,7 @@ class BuildTriggerSubdirs(RepositoryParamResource):
             except TriggerException as exc:
                 return {
                     "status": "error",
-                    "message": exc.message,
+                    "message": str(exc),
                 }
         else:
             raise Unauthorized()
@@ -313,7 +313,7 @@ class BuildTriggerActivate(RepositoryParamResource):
 
             except TriggerException as exc:
                 write_token.delete_instance()
-                raise request_error(message=exc.message)
+                raise request_error(message=str(exc))
 
             # Save the updated config.
             update_build_trigger(trigger, final_config, write_token=write_token)
@@ -389,7 +389,7 @@ class BuildTriggerAnalyze(RepositoryParamResource):
         except TriggerException as rre:
             return {
                 "status": "error",
-                "message": "Could not analyze the repository: %s" % rre.message,
+                "message": "Could not analyze the repository: %s" % rre,
             }
         except NotImplementedError:
             return {
@@ -452,7 +452,7 @@ class ActivateBuildTrigger(RepositoryParamResource):
             prepared = handler.manual_start(run_parameters=run_parameters)
             build_request = start_build(repo, prepared, pull_robot_name=pull_robot_name)
         except TriggerException as tse:
-            raise InvalidRequest(tse.message)
+            raise InvalidRequest(str(tse)) from tse
         except MaximumBuildsQueuedException:
             abort(429, message="Maximum queued build rate exceeded.")
         except BuildTriggerDisabledException:
@@ -567,7 +567,7 @@ class BuildTriggerSources(RepositoryParamResource):
             try:
                 return {"sources": handler.list_build_sources_for_namespace(namespace)}
             except TriggerException as rre:
-                raise InvalidRequest(rre.message)
+                raise InvalidRequest(str(rre)) from rre
         else:
             raise Unauthorized()
 
@@ -597,6 +597,6 @@ class BuildTriggerSourceNamespaces(RepositoryParamResource):
             try:
                 return {"namespaces": handler.list_build_source_namespaces()}
             except TriggerException as rre:
-                raise InvalidRequest(rre.message)
+                raise InvalidRequest(str(rre)) from rre
         else:
             raise Unauthorized()