ci: minimalist initial CI workflow

Since we say this is 3.8 compatible but everyvoice needs 3.10,
let us have CI making sure mypy from Python 3.8 can still parse the code.

Also, ctc-segmenter should accept -h as synonym for --help.

.github/workflows/test.yml

@@ -0,0 +1,51 @@
+name: Run Tests
+on:
+  - push
+  - pull_request
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Set up Conda
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          python-version: "3.8"
+      - name: Install dependencies and package
+        run: pip install -e . mypy
+      - name: Minimal test, --help should work
+        run: ctc-segmenter --help
+      - name: Code quality test, mypy should pass
+        run: mypy aligner
+      - name: Make sure the CLI stays fast
+        id: cli-load-time
+        run: |
+          PYTHONPROFILEIMPORTTIME=1 ctc-segmenter -h 2> importtime.txt > /dev/null
+          CLI_LOAD_TIME="$((/usr/bin/time --format=%E ctc-segmenter -h > /dev/null) 2>&1)"
+          echo "CLI load time: $CLI_LOAD_TIME" > import-message.txt
+          PR_HEAD="${{ github.event.pull_request.head.sha }}"
+          [[ $PR_HEAD ]] && echo "Pull Request HEAD: $PR_HEAD" >> import-message.txt
+          echo "Imports that take more than 0.1 s:" >> import-message.txt
+          grep -E 'cumulative|[0-9]{6} ' importtime.txt >> import-message.txt
+          cat import-message.txt
+          echo "Full import time log:"
+          cat importtime.txt
+          if [[ "$CLI_LOAD_TIME" > "0:01.00" ]]; then \
+            echo "ERROR: ctc-segmenter --help is too slow."; \
+            echo "Please run 'PYTHONPROFILEIMPORTTIME=1 ctc-segmenter -h 2> importtime.txt; tuna importtime.txt' and tuck away expensive imports so that the CLI doesn't load them until it uses them."; \
+            false; \
+          fi
+      - name: Report help speed in PR
+        if: github.event_name == 'pull_request'
+        uses: mshick/add-pr-comment@v2
+        with:
+          preformatted: true
+          message-path: import-message.txt

aligner/cli.py

@@ -12,6 +12,7 @@
 
 app = typer.Typer(
     pretty_exceptions_show_locals=False,
+    context_settings={"help_option_names": ["-h", "--help"]},
     help="An alignment tool based on CTC segmentation to split long audio into utterances",
 )
 

setup.cfg

@@ -9,7 +9,6 @@ ensure_newline_before_comments=True
 
 [mypy]
 ignore_missing_imports = True
-plugins = pydantic.mypy
 
 [flake8]
 ignore = E203, E266, E501, W503