Introduce CI package to handle installation and development

Created by: stefanoborini

Introduces ci package to make the installation of the environment easier and more repeatable.

Fixes #140 (closed)

ci/__main__.py

+import click
+from subprocess import check_call
+
+DEFAULT_PYTHON_VERSION = "2.7"
+PYTHON_VERSIONS = ["2.7", "3.5"]
+
+CORE_DEPS = [
+    "distribute_remove==1.0.0-4",
+    "pip==10.0.1-1",
+    "setuptools==38.2.5-1",
+    "envisage==4.6.0-1",
+    "click==6.7-1",
+    "six==1.10.0-1",
+]
+
+DOCS_DEPS = [
+    "sphinx==1.5.5-5"
+]
+
+DEV_DEPS = [
+    "flake8==3.3.0-2",
+    "coverage==4.3.4-1",
+    "mock==2.0.0-1",
+    "testfixtures==4.10.0-1",
+]
+
+PIP_DEPS = [
+    "stevedore==1.24.0"
+]
+
+
+@click.group()
+def cli():
+    pass
+
+
+python_version_option = click.option(
+    '--python-version',
+    default=DEFAULT_PYTHON_VERSION,
+    type=click.Choice(PYTHON_VERSIONS),
+    show_default=True,
+    help="Python version for the environment")
+
+
+@cli.command(name="build-env", help="Creates the execution environment")
+@python_version_option
+def build_env(python_version):
+    env_name = get_env_name(python_version)
+    check_call([
+        "edm", "environments", "remove", "--purge", "--force",
+        "--yes", env_name])
+    check_call(
+        ["edm", "environments", "create", env_name])
+
+    check_call([
+        "edm", "install", "-e", env_name,
+        "--yes"] + CORE_DEPS + DEV_DEPS + DOCS_DEPS)
+
+    if len(PIP_DEPS):
+        check_call([
+            "edm", "run", "-e", env_name, "--",
+            "pip", "install"] + PIP_DEPS)
+
+    check_call([
+        "edm", "run", "-e", env_name, "--",
+        "pip", "install", "-e", "."])
+
+
+@cli.command(help="Run the tests")
+@python_version_option
+def test(python_version):
+    env_name = get_env_name(python_version)
+
+    check_call([
+        "edm", "run", "-e", env_name, "--", "python", "-m", "unittest",
+        "discover"
+    ])
+
+
+@cli.command(help="Run flake")
+@python_version_option
+def flake8(python_version):
+    env_name = get_env_name(python_version)
+
+    check_call(["edm", "run", "-e", env_name, "--", "flake8", "."])
+
+
+@cli.command(help="Runs the coverage")
+@python_version_option
+def coverage(python_version):
+    env_name = get_env_name(python_version)
+
+    check_call(["edm", "run", "-e", env_name, "--",
+                "coverage", "run", "-m", "unittest", "discover"])
+
+
+@cli.command(help="Builds the documentation")
+@python_version_option
+def docs(python_version):
+    env_name = get_env_name(python_version)
+
+    check_call(["edm", "run", "-e", env_name, "--", "make", "html"], cwd="doc")
+
+
+def get_env_name(python_version):
+    return "force-py{}".format(remove_dot(python_version))
+
+
+def remove_dot(python_version):
+    return "".join(python_version.split('.'))
+
+
+if __name__ == "__main__":
+    cli()