CI is added [flake8] (#2)

Author: dmitry-lipetsk

.travis.yml

@@ -0,0 +1,30 @@
+os: linux
+
+dist: bionic
+
+language: python
+
+services:
+    - docker
+
+install:
+    - docker build --build-arg PYTHON_VERSION="${PYTHON_VERSION}" -t tests -f Dockerfile--${TEST_PLATFORM}.tmpl .
+
+script:
+    - docker run -t tests
+
+notifications:
+    email:
+        on_success: change
+        on_failure: always
+
+env:
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.7
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.8
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.9
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.10
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.11
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.12
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.13
+    - TEST_PLATFORM=alpine PYTHON_VERSION=3.14
+

Dockerfile--alpine.tmpl

@@ -0,0 +1,26 @@
+ARG PYTHON_VERSION 
+
+# --------------------------------------------- base1
+FROM python:${PYTHON_VERSION}-alpine as base1
+
+# --------------------------------------------- base1
+FROM base1 as base2
+
+# --------------------------------------------- final
+FROM base2 as final
+
+RUN apk add bash
+
+RUN adduser -D test
+
+ADD . /home/test/testgres
+RUN chown -R test /home/test/testgres 
+WORKDIR /home/test/testgres
+
+USER test
+
+ENTRYPOINT sh -c " \
+set -eux; \
+echo HELLO FROM ENTRYPOINT; \
+echo HOME DIR IS [`realpath ~/`]; \
+bash run_tests3.sh;"

run_tests3.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+set -eux
+
+# prepare python environment
+VENV_PATH="/tmp/testgres_venv"
+rm -rf $VENV_PATH
+python -m venv "${VENV_PATH}"
+export VIRTUAL_ENV_DISABLE_PROMPT=1
+source "${VENV_PATH}/bin/activate"
+
+# install testgres' dependencies
+export PYTHONPATH=$(pwd)
+# $PIP install .
+
+pip install flake8 flake8-pyproject
+flake8
+
+set +eux

src/exceptions.py

@@ -7,4 +7,3 @@ class TestgresException(Exception):
 
 class InvalidOperationException(TestgresException):
     pass
-