Add update-depedencies workflow

{{cookiecutter.project_slug}}/.github/workflows/publish.yaml

@@ -1,6 +1,7 @@
 name: Build, publish & deploy
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - master

{{cookiecutter.project_slug}}/.github/workflows/test.yaml

@@ -1,6 +1,7 @@
 name: Test
 
 on:
+  workflow_dispatch:
   workflow_call:
   pull_request:
     branches: [ "master" ]

{{cookiecutter.project_slug}}/.github/workflows/update-dependencies.yaml

@@ -0,0 +1,39 @@
+name: Update dependencies
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 18 * * TUE'
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  update:
+    name: Update dependencies
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          ref: master
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+          cache: pip
+      - name: Update dependencies
+        run: |
+          pip install pip-tools invoke
+          invoke update-dependencies --no-sync
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v4
+        id: create-pull-request
+        with:
+          token: ${{ secrets.PERSONAL_TOKEN_PR }}
+          commit-message: Update dependencies
+          base: master
+          branch: update-dependencies
+          title: Update dependencies
+          delete-branch: true

{{cookiecutter.project_slug}}/tasks.py

@@ -10,7 +10,12 @@ TEST_ENV = {"ENV_FILE": BASE_DIR / "envs" / "test-envs.env"}
 
 
 @task
-def sync_dependencies(ctx: Context, *, update: bool = False):
+def update_dependencies(ctx: Context, *, sync: bool = True):
+    return compile_dependencies(ctx, update=True, sync=sync)
+
+
+@task
+def compile_dependencies(ctx: Context, *, update: bool = False, sync: bool = False):
     common_args = "-q --allow-unsafe --resolver=backtracking"
     if update:
         common_args += " --upgrade"
@@ -30,12 +35,14 @@ def sync_dependencies(ctx: Context, *, update: bool = False):
             pty=True,
             echo=True,
         )
-        ctx.run("pip-sync requirements.txt requirements-dev.txt", pty=True, echo=True)
+    if sync:
+        sync_dependencies(ctx)
 
 
 @task
-def update_dependencies(ctx: Context):
-    return sync_dependencies(ctx, update=True)
+def sync_dependencies(ctx: Context):
+    with ctx.cd(BASE_DIR):
+        ctx.run("pip-sync requirements.txt requirements-dev.txt", pty=True, echo=True)
 
 
 @task