Create sdist packages

Adapted from the psycopg2-wheels project

.github/workflows/packages.yml

@@ -0,0 +1,52 @@
+---
+name: Build packages
+on:
+  - workflow_dispatch
+
+
+jobs:
+  build-sdist:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - package_name: psycopg2
+          - package_name: psycopg2-binary
+
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repos
+        uses: actions/checkout@v2
+
+      - name: Build sdist
+        run: ./scripts/build/build_sdist.sh
+        env:
+          PACKAGE_NAME: ${{ matrix.package_name }}
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: packages_sdist
+          path: |
+            dist/*/*.tar.gz
+
+    env:
+      PSYCOPG2_TESTDB: postgres
+      PSYCOPG2_TESTDB_HOST: 172.17.0.1
+      PSYCOPG2_TESTDB_USER: postgres
+      PSYCOPG2_TESTDB_PASSWORD: password
+      PSYCOPG2_TEST_FAST: 1
+
+    services:
+      postgresql:
+        image: postgres:13
+        env:
+          POSTGRES_PASSWORD: password
+        ports:
+          - 5432:5432
+        # Set health checks to wait until postgres has started
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5

scripts/build/build_sdist.sh

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+#!/bin/bash
+
+set -euo pipefail
+set -x
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+PRJDIR="$( cd "${DIR}/../.." && pwd )"
+
+# Find psycopg version
+export VERSION=$(grep -e ^PSYCOPG_VERSION setup.py | sed "s/.*'\(.*\)'/\1/")
+# A gratuitous comment to fix broken vim syntax file: '")
+export DISTDIR="${PRJDIR}/dist/psycopg2-$VERSION"
+
+# Replace the package name
+if [[ "${PACKAGE_NAME:-}" ]]; then
+    sed -i "s/^setup(name=\"psycopg2\"/setup(name=\"${PACKAGE_NAME}\"/" \
+        setup.py
+fi
+
+# Build the source package
+python setup.py sdist -d "$DISTDIR"
+
+# install and test
+pip install "${DISTDIR}"/*.tar.gz
+
+python -c "import tests; tests.unittest.main(defaultTest='tests.test_suite')"