Generate requirements.txt at build time via SAM Makefile method

.github/workflows/web.yml

@@ -8,7 +8,7 @@ on:
       - 'samconfig.toml'
       - 'pyproject.toml'
       - 'poetry.lock'
-      - 'requirements.txt'
+      - 'Makefile'
       - '.github/workflows/web.yml'
   pull_request:
     paths:
@@ -17,7 +17,7 @@ on:
       - 'samconfig.toml'
       - 'pyproject.toml'
       - 'poetry.lock'
-      - 'requirements.txt'
+      - 'Makefile'
       - '.github/workflows/web.yml'
 jobs:
   check:
@@ -28,10 +28,6 @@ jobs:
         with:
           python-version: '3.12'
       - run: pip install poetry poetry-plugin-export
-      - name: Check requirements.txt is current
-        run: |
-          poetry export --extras web --output requirements.txt.check
-          diff requirements.txt requirements.txt.check
       - uses: aws-actions/setup-sam@d78e1a4a9656d3b223e59b80676a797f20093133 # v2
       - run: sam validate --lint
       - run: sam build

.gitignore

@@ -4,6 +4,7 @@
 .requirements/
 .aws-sam/
 packaged.yaml
+requirements.txt
 __pycache__/
 htmlcov/
 tagbot.egg-info/

DEVGUIDE.md

@@ -123,7 +123,6 @@ sam build && sam deploy \
 |------|---------|
 | `template.yaml` | SAM template: Lambda functions, API Gateway, IAM |
 | `samconfig.toml` | Deploy config per environment |
-| `requirements.txt` | Python deps for Lambda (keep in sync with pyproject.toml) |
 
 **Parameters** (in template.yaml, pass via `--parameter-overrides`):
 - `GithubTokenParam` - SSM parameter name for the GitHub token (default: `/tagbot/github-token`)
@@ -135,7 +134,7 @@ The GitHub token is stored in SSM Parameter Store as a SecureString at `/tagbot/
 
 ### Troubleshooting
 
-**Missing Python modules**: Check `requirements.txt`, try `rm -rf .aws-sam/`
+**Missing Python modules**: Check `poetry.lock`, try `rm -rf .aws-sam/`
 
 **Build issues**: `sam build --use-container` to build in a Docker container matching the Lambda runtime
 

Makefile

@@ -1,4 +1,9 @@
-.PHONY: test test-docker publish pytest black flake8 mypy
+.PHONY: test test-docker publish pytest black flake8 mypy build-ApiFunction build-ReportsFunction
+
+build-ApiFunction build-ReportsFunction:
+	poetry export --extras web --without-hashes --output requirements.txt
+	pip install -r requirements.txt -t $(ARTIFACTS_DIR)/
+	cp -r tagbot $(ARTIFACTS_DIR)/
 
 test:
 	./bin/test.sh