Migrate to uv for build and packaging

.envrc

@@ -1 +1 @@
-. venv/bin/activate
+. .venv/bin/activate

.github/workflows/lint.yml

@@ -15,9 +15,11 @@ jobs:
     steps:
       - name: "Clone project repository"
         uses: actions/checkout@v3
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name : "Run flake8"
-        uses: py-actions/flake8@v2
+      - name: "Install dependencies"
+        run: uv sync
+      - name: "Run flake8"
+        run: uv run flake8 --config tox.ini

.github/workflows/publish.yml

@@ -18,14 +18,10 @@ jobs:
         run: |
           build_tag=$(./scripts/create_build_tag_file.sh)
           echo "build-tag=v${build_tag}" >> $GITHUB_OUTPUT
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name: "Print Python version"
-        run: python3 --version
-      - name: "Install shiv"
-        run: pip install shiv
       - name: "Build local shiv package"
         id: build
         run: |

.github/workflows/test-deploy-k8s.yml

@@ -19,16 +19,12 @@ jobs:
     steps:
       - name: "Clone project repository"
         uses: actions/checkout@v3
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name: "Print Python version"
-        run: python3 --version
       - name: "Print kind version"
         run: kind version
-      - name: "Install shiv"
-        run: pip install shiv
       - name: "Generate build version file"
         run: ./scripts/create_build_tag_file.sh
       - name: "Build local shiv package"

.github/workflows/test-deploy.yml

@@ -15,14 +15,10 @@ jobs:
     steps:
       - name: "Clone project repository"
         uses: actions/checkout@v3
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name: "Print Python version"
-        run: python3 --version
-      - name: "Install shiv"
-        run: pip install shiv
       - name: "Generate build version file"
         run: ./scripts/create_build_tag_file.sh
       - name: "Build local shiv package"

.github/workflows/test-webapp.yml

@@ -15,14 +15,10 @@ jobs:
     steps:
       - name: "Clone project repository"
         uses: actions/checkout@v3
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name: "Print Python version"
-        run: python3 --version
-      - name: "Install shiv"
-        run: pip install shiv
       - name: "Generate build version file"
         run: ./scripts/create_build_tag_file.sh
       - name: "Build local shiv package"

.github/workflows/test.yml

@@ -15,14 +15,10 @@ jobs:
     steps:
       - name: "Clone project repository"
         uses: actions/checkout@v3
-      - name: "Install Python"
-        uses: actions/setup-python@v4
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@v4
         with:
           python-version: '3.12'
-      - name: "Print Python version"
-        run: python3 --version
-      - name: "Install shiv"
-        run: pip install shiv
       - name: "Generate build version file"
         run: ./scripts/create_build_tag_file.sh
       - name: "Build local shiv package"

.gitignore

@@ -1,5 +1,6 @@
 .idea
 venv
+.venv
 .vscode
 stack.egg-info
 __pycache__

.python-version

@@ -0,0 +1 @@
+3.12

README.md

@@ -80,8 +80,14 @@ To get started quickly on a fresh Ubuntu 24.04 instance (e.g, a Digital Ocean dr
 
 **WARNING:** Always review downloaded scripts prior to running them so that you know what going to happen to your machine.
 
-### Lazy Mode
-Stack is written in Python and so needs a recent Python 3 on the machine. It also needs either docker or podman installed, and these utilities: git, jq. The [full installation instructions](./docs/install.md) show how to get these but if you're allready set up, proceed:
+### Install with uv
+If you have [uv](https://docs.astral.sh/uv/getting-started/installation/) installed:
+```bash
+uv tool install --from git+https://github.com/bozemanpass/stack stack
+```
+
+### Download a release
+Stack is written in Python and so needs a recent Python 3 on the machine. It also needs either docker or podman installed, and these utilities: git, jq. The [full installation instructions](./docs/install.md) show how to get these but if you're already set up, proceed:
 
 Stack is distributed as a single-file self-extracting script. The latest release can be downloaded like this:
 ```bash

docs/CONTRIBUTING.md

@@ -10,17 +10,7 @@ Suitable for developers either modifying or debugging the orchestrator Python co
 
 In addition to the pre-requisites listed in the [README](/README.md), the following are required:
 
-1. Python venv package
-   This may or may not be already installed depending on the host OS and version. Check by running:
-   ```
-   $ python3 -m venv
-   usage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear] [--upgrade] [--without-pip] [--prompt PROMPT] ENV_DIR [ENV_DIR ...]
-   venv: error: the following arguments are required: ENV_DIR
-   ```
-   If the venv package is missing you should see a message indicating how to install it, for example with:
-   ```
-   $ apt install python3.10-venv
-   ```
+1. [uv](https://docs.astral.sh/uv/getting-started/installation/) — used for dependency management and virtual environments.
 
 ### Install
 
@@ -29,19 +19,20 @@ In addition to the pre-requisites listed in the [README](/README.md), the follow
    $ git clone https://github.com/bozemanpass/stack.git
    ```
 
-   2. Enter the project directory:
+2. Enter the project directory:
    ```
    $ cd stack
    ```
 
-   3. Setup the virtualenv:
+3. Install dependencies:
    ```
-   $ source ./scripts/developer-mode-setup.sh
+   $ ./scripts/developer-mode-setup.sh
    ```
+   This runs `uv sync`, which creates a `.venv` virtual environment and installs all dependencies.
 
-   4. Verify installation:
+4. Verify installation:
    ```
-   $ (venv)  stack
+   $ uv run stack
       Usage: stack [OPTIONS] COMMAND [ARGS]...
 
       BPI stack
@@ -68,11 +59,11 @@ In addition to the pre-requisites listed in the [README](/README.md), the follow
 
 ## Build a zipapp (single file distributable script)
 
-Use shiv to build a single file Python executable zip archive of stack:
+Use shiv (via `uvx`) to build a single file Python executable zip archive of stack:
 
 1. Run shiv to create a zipapp file:
    ```
-   $ (venv)  ./scripts/build_shiv_package.sh
+   $ ./scripts/build_shiv_package.sh
    ```
    This creates a file under `./package/` that is executable outside of any venv, and on other machines and OSes and architectures, and requiring only the system Python3:
 

docs/install.md

@@ -23,7 +23,23 @@ curl -SL https://github.com/docker/compose/releases/download/v2.11.2/docker-comp
 chmod +x ~/.docker/cli-plugins/docker-compose
 ```
 
-Next decide on a directory where you would like to put the stack program. Typically, this would be 
+### Install with uv (recommended)
+
+If you have [uv](https://docs.astral.sh/uv/getting-started/installation/) installed, you can install stack directly from the git repository:
+
+```bash
+uv tool install --from git+https://github.com/bozemanpass/stack stack
+```
+
+This installs `stack` into an isolated environment and adds it to your PATH. To update to the latest version:
+
+```bash
+uv tool upgrade stack
+```
+
+### Install from a downloaded release
+
+Decide on a directory where you would like to put the stack program. Typically, this would be
 a "user" binary directory such as `~/bin` or perhaps `/usr/local/bin/stack` or possibly just the current working directory.
 
 Now, having selected that directory, download the latest release from [this page](https://github.com/bozemanpass/stack/releses) into it (we're using `~/bin` below for concreteness but edit to suit if you selected a different directory). Also be sure that the destination directory exists and is writable:

pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
-requires = ["setuptools>=75.0", "wheel"]
-build-backend = "setuptools.build_meta"
+requires = ["uv_build>=0.10.6,<0.11.0"]
+build-backend = "uv_build"
 
 [project]
 name = "stack"
@@ -25,16 +25,14 @@ dependencies = [
     "mergedeep",
     "mermaid-builder",
     "termcolor",
-    "flake8",
-    "black"
 ]
 requires-python = ">=3.10"
 
 [project.scripts]
 stack = "stack:main.cli"
 
-[tool.setuptools.package-data]
-stack = ['data/**']
+[dependency-groups]
+dev = ["flake8", "black"]
 
 [project.urls]
 "Homepage" = "https://github.com/bozemanpass/stack"

scripts/build_shiv_package.sh

@@ -1,4 +1,4 @@
 # Builds the shiv "package" for distribution
 mkdir -p ./package
 version_string=$( ./scripts/create_build_tag_file.sh )
-shiv -c stack -o package/stack-${version_string} .
+uvx shiv -c stack -o package/stack-${version_string} .

scripts/developer-mode-setup.sh

@@ -1,12 +1,5 @@
 #!/usr/bin/env bash
-# Script to automate the steps needed to make a cloned project repo runnable on the path
-# (beware of PATH having some other file with the same name ahead of ours)
 if [[ -n "$STACK_SCRIPT_DEBUG" ]]; then
     set -x
-    echo PATH is $PATH
 fi
-python3 -m venv venv
-source ./venv/bin/activate
-python3 -m pip install --upgrade pip setuptools wheel
-pip install shiv
-pip install --editable .
+uv sync

scripts/lint.sh

@@ -2,7 +2,7 @@
 
 if [[ "$1" == "--fix" ]]; then
   LINE_LENGTH=$(cat tox.ini | grep 'max-line-length' | cut -d'=' -f2 | awk '{ print $1 }')
-  black -l ${LINE_LENGTH:-132} src/stack/ 
+  uv run black -l ${LINE_LENGTH:-132} src/stack/
 fi
 
-flake8 --config tox.ini
+uv run flake8 --config tox.ini

tox.ini

@@ -1,6 +1,6 @@
 [flake8]
 extend-ignore = E203
-exclude = .git,__pycache__,docs/source/conf.py,old,build,dist,venv
+exclude = .git,__pycache__,docs/source/conf.py,old,build,dist,venv,.venv
 max-complexity = 25
 max-line-length = 132
 per-file-ignores =