Replace nix with poetry (#10)

* Remove nix
* Introduce poetry to lock dependencies
* Update Poetry to 1.1.15

Co-authored-by: Hanfei Shen <[email protected]>

.github/workflows/deploy.yml

@@ -14,9 +14,6 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v2
-    - uses: cachix/install-nix-action@v13
-      with:
-        nix_path: nixpkgs=channel:nixos-unstable
     - name: Dockerize
       run: make dockerize
     - name: Deploy to DockerHub

.github/workflows/test.yml

@@ -22,12 +22,16 @@ jobs:
           - '3.8'
           - '3.9'
           - '3.10'
+        poetry-version:
+          - '1.1.15'
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
+      - name: Install Poetry
+        run: pip install poetry==${{ matrix.poetry-version }}
       - name: Install requirements
-        run: pip install -r requirements_frozen.txt
+        run: poetry install
       - name: Run tests
-        run: pytest
+        run: poetry run pytest

.gitignore

@@ -4,10 +4,9 @@ ENV/
 *.egg-info
 .coverage
 .pytest_cache
-
-# nix stuff
-result
-result-*
+/MANIFEST
+/build/
+/dist/
 
 # Editor
 *.sw[po]

Dockerfile

@@ -0,0 +1,26 @@
+FROM python:3.9-slim AS builder
+
+ARG POETRY_VERSION=1.1.15
+RUN pip install poetry==$POETRY_VERSION
+
+WORKDIR /src
+
+COPY pyproject.toml poetry.lock README.md pylintrc ./
+COPY marge/ ./marge/
+RUN poetry export -o requirements.txt && \
+  poetry build
+
+
+FROM python:3.9-slim
+
+RUN apt-get update && apt-get install -y \
+  git-core \
+  && \
+  rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /src/requirements.txt /src/dist/marge-*.tar.gz /tmp/
+
+RUN pip install -r /tmp/requirements.txt && \
+  pip install /tmp/marge-*.tar.gz
+
+ENTRYPOINT ["marge"]

Makefile

@@ -1,32 +1,34 @@
 VERSION?=$$(git rev-parse --abbrev-ref HEAD)
 
 .PHONY: all
-all: requirements_frozen.txt requirements.nix requirements_override.nix marge-bot dockerize
+all: dockerize
 
-.PHONY: marge-bot
-marge-bot:
-	nix-build --keep-failed --attr marge-bot default.nix
+.PHONY: bump
+bump: bump-requirements
 
-.PHONY: clean
-clean:
-	rm -rf .cache result result-* requirements_frozen.txt
+poetry.lock:
+	poetry install
 
-.PHONY: bump
-bump: bump-requirements bump-sources
+requirements.txt: poetry.lock
+	poetry export -o $@
 
-.PHONY: bump-sources
-bump-sources:
-	nix-shell --run niv update
+requirements_development.txt: poetry.lock
+	poetry export --dev -o $@
 
-.PHONY: bump-requirements
-bump-requirements: clean requirements_frozen.txt
+.PHONY: bump-poetry-lock
+bump-poetry-lock:
+	poetry update
 
-requirements_frozen.txt requirements.nix requirements_override.nix: requirements.txt
-	pypi2nix -V 3.6 -r $^
+.PHONY: clean-requirements
+clean-requirements:
+	rm -rf requirements.txt requirements_development.txt
+
+.PHONY: bump-requirements
+bump-requirements: bump-poetry-lock clean-requirements requirements.txt requirements_development.txt
 
 .PHONY: dockerize
 dockerize:
-	docker load --input $$(nix-build --attr docker-image default.nix)
+	docker build --tag hiboxsystems/marge-bot:$$(cat version) .
 
 .PHONY: docker-push
 docker-push:

README.md

@@ -142,7 +142,9 @@ optional arguments:
                            [env var: MARGE_USE_MERGE_COMMIT_BATCHES] (default: False)
   --skip-ci-batches     Skip CI when updating individual MRs when using batches   [env var: MARGE_SKIP_CI_BATCHES] (default: False)
 ```
+
 Here is a config file example
+
 ```yaml
 add-part-of: true
 add-reviewers: true
@@ -164,8 +166,8 @@ ssh-key-file: token.FILE
 # OR use HTTPS instead of SSH
 #use-https: true
 ```
-For more information about configuring marge-bot see `--help`
 
+For more information about configuring marge-bot see `--help`
 
 ## Running
 
@@ -280,6 +282,7 @@ docker run --restart=on-failure \ # restart if marge crashes because GitLab is f
 HTTPS can be used using any other deployment technique as well.
 
 ### Running marge-bot in kubernetes
+
 It's also possible to run marge in kubernetes, e.g. here's how you use a ktmpl
 template:
 
@@ -298,6 +301,7 @@ Once running, the bot will continuously monitor all projects that have its user
 will pick up any changes in membership at runtime.
 
 ### Running marge-bot in Swarm
+
 Or you can run marge in Docker Swarm, e.g. here's how you use a compose file:
 
 ```yaml
@@ -364,46 +368,39 @@ run:
 
 ### Running marge-bot as a plain python app
 
-#### Installing marge-bot with nix
-
-Alternatively, if you prefer not to use docker, you can also directly run marge.
-If you use [nix](https://nixos.org/nix/) do `nix-env --install -f default.nix`.
-
-The nix install should be fully reproducible on any version of linux (and also
-work on OS X, although this is not something we properly test). If you don't
-want to use docker we recommend you give nix a try.
-
-#### Installing marge-bot the old-fashioned way
-
-Finally, although this is our least preferred alternative, you can always do
-`python3 setup.py install` (note that you will need python3.6).
+Install all dependencies with `poetry install` (note that you will need Python 3.6+).
 
 Afterwards, the minimal way to run marge is as follows.
 
 ```bash
-marge.app --auth-token-file marge-bot.token \
-          --gitlab-url 'http://your.gitlab.instance.com' \
-          --ssh-key-file marge-bot-ssh-key
+poetry run marge --auth-token-file marge-bot.token \
+                 --gitlab-url 'http://your.gitlab.instance.com' \
+                 --ssh-key-file marge-bot-ssh-key
 ```
 
 However, we suggest you use a systemd unit file or some other mechanism to
 automatically restart marge-bot in case of intermittent GitLab problems.
 
-### Setting up a development environment
+## Setting up a development environment
 
-Install `nix` by following https://nix.dev/tutorials/install-nix:
+1. Install `poetry` with `pip install poetry`.
+2. Check out this repository.
+3. Run `poetry install` in the repository root.
+
+### Running linting and tests
 
 ```shell
-$ sh <(curl -L https://nixos.org/nix/install) --daemon
+poetry run pytest
 ```
 
-After that, a Docker image can be built with:
+### Run marge-bot
 
 ```shell
-$ make dockerize
+poetry run marge
 ```
 
 ## Suggested workflow
+
 1. Alice creates a new merge request and assigns Bob and Charlie as reviewers
 
 2. Both review the code and after all issues they raise are resolved by Alice,
@@ -416,7 +413,6 @@ $ make dockerize
    the merge request via the GitLab API. It can also add some headers to all
    commits in the merge request as described in the next section.
 
-
 ## Adding Reviewed-by:, Tested: and Part-of: to commit messages
 
 Marge-bot supports automated addition of the following
@@ -456,6 +452,7 @@ commits introduced by a single Merge Request when using a fast-forward/rebase
 based merge workflow.
 
 ## Impersonating approvers
+
 If you want a full audit trail, you will configure GitLab
 [require approvals](https://docs.gitlab.com/ee/user/project/merge_requests/merge_request_approvals.html#approvals-required)
 for PRs and also turn on
@@ -478,7 +475,6 @@ More than one embargo period can be specified, separated by commas. Any merge
 request assigned to her during an embargo period, will be merged in only once all
 embargoes are over.
 
-
 ## Batching Merge Requests
 
 The flag `--batch` enables testing and merging merge requests in batches. This can
@@ -600,7 +596,6 @@ This reverts commit 0af5b70a98858c9509c895da2a673ebdb31e20b1.
 
 E.g. `git revert-mr 123`.
 
-
 ## Troubleshooting
 
 Marge-bot continuously logs what she is doing, so this is a good place to look

marge/__main__.py

@@ -0,0 +1,19 @@
+from marge.app import main
+
+
+def run():
+    try:
+        main()
+    except Exception as err:
+        print('Exception occured')
+        if hasattr(err, 'stdout'):
+            # pylint: disable=no-member
+            print(f'stdout was: {err.stdout}')
+        if hasattr(err, 'stderr'):
+            # pylint: disable=no-member
+            print(f'stderr was: {err.stderr}')
+        raise
+
+
+if __name__ == '__main__':
+    run()