allow config to manage python3 use explicitly
Add variables ENABLED_PYTHON3_PACKAGES and DISABLED_PYTHON3_PACKAGES to
work like ENABLED_SERVICES and DISABLED_SERVICES and to manage which
packages are installed using Python 3. Move the list of whitelisted
packages in pip_install to the default for ENABLED_PYTHON3_PACKAGES,
except swift which is not enabled by default for now.
Add enable_python3_package and disable_python3_package functions to make
editing the variables from local.conf easier.
Add python3_enabled_for and python3_disabled_for functions to check the
settings against packages being installed by pip.
Update pip_install to check if python3 is disabled for a service, then
see if it is explicitly enabled, and only then fall back to looking at
the classifiers in the packaging metadata.
Update pip_install messages to give more detail about why the choice
between python 2 and 3 is being made for a given package.
Change-Id: I69857d4e11f4767928614a3b637c894bcd03491f
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
diff --git a/tests/test_python.sh b/tests/test_python.sh
new file mode 100755
index 0000000..8652798
--- /dev/null
+++ b/tests/test_python.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# Tests for DevStack INI functions
+
+TOP=$(cd $(dirname "$0")/.. && pwd)
+
+source $TOP/functions-common
+source $TOP/inc/python
+
+source $TOP/tests/unittest.sh
+
+echo "Testing Python 3 functions"
+
+# Initialize variables manipulated by functions under test.
+export ENABLED_PYTHON3_PACKAGES=""
+export DISABLED_PYTHON3_PACKAGES=""
+
+assert_false "should not be enabled yet" python3_enabled_for testpackage1
+
+enable_python3_package testpackage1
+assert_equal "$ENABLED_PYTHON3_PACKAGES" "testpackage1" "unexpected result"
+assert_true "should be enabled" python3_enabled_for testpackage1
+
+assert_false "should not be disabled yet" python3_disabled_for testpackage2
+
+disable_python3_package testpackage2
+assert_equal "$DISABLED_PYTHON3_PACKAGES" "testpackage2" "unexpected result"
+assert_true "should be disabled" python3_disabled_for testpackage2
+
+report_results