fix: Fix parameter expansion not to override empty PYTHON_VERSIONS

Also don't try to test on multiple Python versions in CI.
Also try to fix encoding/decoding errors on Windows,
but there's ALWAYS an error on Windows,
I DON'T KNOW WHAT'S WRONG WITH IT,
CAN'T IT READ UTF8 FOR CI'S SAKE.

PR #11: pawamoy/copier-poetry#11

.github/workflows/ci.yml

@@ -12,18 +12,25 @@ defaults:
   run:
     shell: bash
 
+env:
+  LANG: "en_US.utf-8"
+  LC_ALL: "en_US.utf-8"
+  POETRY_VIRTUALENVS_IN_PROJECT: "true"
+  PYTHONIOENCODING: "UTF-8"
+  PYTHON_VERSIONS: ""
+
 jobs:
 
   tests:
 
     strategy:
       max-parallel: 6
       matrix:
-        os: [ubuntu-latest, windows-latest]
-        python-version: [3.6,3.7,3.8]
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: [3.6,3.7,3.8,3.9]
 
     runs-on: ${{ matrix.os }}
-    continue-on-error: ${{ matrix.os == 'windows-latest' }}
+    continue-on-error: ${{ matrix.os != 'ubuntu-latest' }}
 
     steps:
     - name: Checkout
@@ -52,7 +59,7 @@ jobs:
 
     - name: Set up the project
       run: |
-        pip install poetry safety copier invoke
+        pip install poetry safety copier
         poetry config virtualenvs.in-project true
 
     - name: Run the test suite

project/pyproject.toml.jinja

@@ -80,7 +80,7 @@ exclude = ["tests/fixtures"]
     "-A001",  # redundant with W0622 (builtin override), which is more precise about line number
     "-D105",  # missing docstring in magic method
     "-D212",  # multi-line docstring summary should start at the first line
-    "-E203",  # whitespace before ‘:’ (incompatible with Black)
+    "-E203",  # whitespace before ':' (incompatible with Black)
     "-F821",  # redundant with E0602 (undefined variable)
     "-Q000",  # black already deals with quoting
     "-S101",  # use of assert

project/scripts/multirun.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -e
 
-PYTHON_VERSIONS="${PYTHON_VERSIONS:-3.6 3.7 3.8 3.9}"
+PYTHON_VERSIONS="${PYTHON_VERSIONS-3.6 3.7 3.8 3.9}"
 
 if [ -n "${PYTHON_VERSIONS}" ]; then
     for python_version in ${PYTHON_VERSIONS}; do

project/scripts/setup.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -e
 
-PYTHON_VERSIONS="${PYTHON_VERSIONS:-3.6 3.7 3.8 3.9}"
+PYTHON_VERSIONS="${PYTHON_VERSIONS-3.6 3.7 3.8 3.9}"
 
 install_with_pipx() {
     if ! command -v "$1" &>/dev/null; then

tests/test_generate.sh

@@ -26,7 +26,7 @@ echo
 copier -f "${template}" "${output}" \
   -d project_name="Pawamoy Testing" \
   -d project_description='Testing this great template' \
-  -d author_fullname="Timothée Mazzucotelli" \
+  -d author_fullname="Timothee Mazzucotelli" \
   -d author_username="pawamoy" \
   -d author_email="[email protected]"
 cd "${output}"