Merge funflow2 repository

Merged the funflow2 repository with its full history into
the funflow2/ directory using a subtree merge strategy.

funflow2/.gitattributes

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+# GitHub Linguist annotations.
+# Hide nix/.stack.nix/*.nix
+# That is stuff that is generated by nix-tools stack-to-nix
+
+nix/.stack.nix/*.nix linguist-generated=true

funflow2/.github/settings.yml

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+repository:
+  has_wiki: false
+
+labels:
+  - name: "duplicate"
+    color: cfd3d7
+  - name: "good first issue"
+    color: 7057ff
+  - name: "invalid"
+    color: cfd3d7
+  - name: "P0"
+    color: b60205
+  - name: "P1"
+    color: d93f0b
+  - name: "P2"
+    color: e99695
+  - name: "P3"
+    color: fbca04
+  - name: "P4"
+    color: fef2c0
+  - name: "question"
+    color: d876e3
+  - name: "type: bug"
+    color: 0052cc
+  - name: "type: documentation"
+    color: 0052cc
+  - name: "type: feature request"
+    color: 0052cc
+  - name: "wontfix"
+    color: ffffff

funflow2/.github/workflows/funflow2-ci-linux-nix.yml

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+name: funflow2 CI (Linux, Nix)
+
+on: [push]
+
+jobs:
+  build:
+    name: funflow2 [build >> tests >> doc]
+    runs-on: ubuntu-latest
+    steps:
+      # Setup
+      - uses: actions/checkout@v2
+      - uses: cachix/install-nix-action@v12
+        # with:
+        #   skip_adding_nixpkgs_channel: true
+      - uses: cachix/cachix-action@v8
+        with:
+          name: tweag-funflow2
+          signingKey: "${{ secrets.CACHIX_SIGNING_KEY }}"
+      # Builds
+      # docker-client library with its tests
+      - name: Build docker-client library
+        run: nix-build -A docker-client
+      - name: Build docker-client test suite
+        run: nix-build -A docker-client-tests -o docker-client-tests
+      - name: Run docker-client unit tests
+        run: ./docker-client-tests/bin/primary --pattern "unit"
+      # Note: these tests take about 10s to run. If executing time
+      # gets much longer we can rethink when we want to run these.
+      - name: Run docker-client <--> docker integration tests
+        run: ./docker-client-tests/bin/primary --pattern "integration"
+      # funflow library with its tests
+      - name: Build funflow library
+        run: nix-build -A funflow
+      - name: Test
+        run: |
+          echo "Building tests"
+          FLOW_TESTS_PATH=$(nix-build -A funflow-tests)
+          TESTS_PATH=$(nix-build -A funflow-unit-tests)
+          echo "Running main test suite"
+          $TESTS_PATH/bin/unit-tests
+          echo "Running flow tests"
+          # Funflow flow tests have to be run in the `funflow` folder, like stack does, in order to have access to test assets
+          cd ./funflow
+          $FLOW_TESTS_PATH/bin/test-funflow
+          cd ..
+      # Build documentation
+      - name: Build docs and tutorials
+        run: funflow-pages/scripts/build.sh
+      # Deploy documentation to a github page
+      - name: Deploy docs
+        # Push to GitHub Pages only on master
+        if: github.ref == 'refs/heads/master'
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
+          publish_dir: ./funflow-pages/result/funflow2

funflow2/.gitignore

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+dist
+dist-*
+cabal-dev
+*.o
+*.hi
+*.chi
+*.chs.h
+*.dyn_o
+*.dyn_hi
+.hpc
+.hsenv
+.cabal-sandbox/
+cabal.sandbox.config
+*.prof
+*.aux
+*.hp
+*.eventlog
+.stack-work/
+cabal.project.local
+
+.vscode
+.idea/
+
+result*
+
+out
+
+# TODO remove once bug corrected
+*.cabal
+
+funflow-tutorial/outputs
+funflow-tutorial/notebooks/**/*.html
+funflow-tutorial/notebooks/**/.ipynb_checkpoints
+
+.tmp
+
+.ipynb_checkpoints/
+
+# Examples
+makefiletest/
+

funflow2/.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "nixEnvSelector.nixShellConfig": "${workspaceRoot}/shell.nix",
+  "haskell.languageServerVariant": "haskell-language-server",
+  "editor.formatOnSave": true,
+  "liveServer.settings.root": "/funflow-pages/result"
+}

funflow2/LICENSE

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+MIT License
+
+Copyright (c) 2020 Tweag
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

funflow2/README.md

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+# funflow2
+
+Compose and run computational workflows.
+
+> **Disclaimer**: funflow2 is in an extremely early state and is subject to change. Use at your own risk.
+
+## Introduction
+
+`funflow2` is a Haskell library to write workflows programatically. It is the spiritual
+successor to the excellent [funflow](https://github.com/tweag/funflow) library and builds upon
+the [kernmantle](https://github.com/tweag/kernmantle/) binary effects library.
+
+Funflow allows you to compose tasks to make *reusable* workflows and helps promote reproducibility
+by employing a content-addressed store.
+
+https://tweag.github.io/funflow2/
+
+## Getting started
+
+### Installation
+
+#### Cookiecutter Template
+
+To get started with a simple project, you can use the cookiecutter template provided with this repo:
+
+```console
+cookiecutter [email protected]:tweag/funflow2.git --directory cookiecutter-funflow
+```
+
+#### Stack
+
+While funflow2 hasn't been plublished on Hackage yet, you can install it as a git dependency using the standard Haskell tooling (e.g. [Stack](https://docs.haskellstack.org/en/stable/yaml_configuration/#packages)). Note that you will
+also need to add a couple of extra dependencies to your `stack.yaml`. See the [example stack.yaml](./docs/example-user-stack.yaml) for a minimal example.
+
+### Tutorials
+
+Check out the tutorials on the funflow2 website to get started: https://tweag.github.io/funflow2/tutorials/.
+
+You can run the tutorial notebooks using the nix shell provided in the [funflow-tutorial](./funflow-tutorial) directory.
+
+## Documentation
+
+The API documentation can be found here: https://tweag.github.io/funflow2/api/
+
+## Developement
+
+For those interested in contributing, please see [DEVELOPMENT.md](./docs/DEVELOPMENT.md).

funflow2/cas/hashable/LICENSE

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+MIT License
+
+Copyright (c) 2017 Tweag I/O
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

funflow2/cas/hashable/cas-hashable.cabal

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+Name:                cas-hashable
+Version:             1.0.1
+Synopsis:            A hashing class for content-addressed storage
+Description:
+            A hashing class for content-addressed storage. Content can be hashed either by value or through an IO action. Part of the funflow ecosystem.
+License:             MIT
+License-file:        LICENSE
+Author:              Tom Nielsen, Nicholas Clarke, Andreas Herrmann
+Maintainer:          [email protected]
+build-type:          Simple
+Cabal-Version:       >= 1.10
+homepage:            https://github.com/tweag/funflow
+bug-reports:         https://github.com/tweag/funflow
+category:            Control
+Tested-With:         GHC == 7.8.4, GHC == 7.10.2, GHC == 7.10.3, GHC == 8.0.1
+
+extra-source-files:
+                   changelog.md
+
+Library
+   ghc-options:       -Wall -fno-warn-type-defaults
+   hs-source-dirs:    src
+   default-language:  Haskell2010
+
+   Exposed-modules:  Data.CAS.ContentHashable
+   Build-depends:
+                 base                    >= 4.6 && <5
+               , aeson                   >= 1.2.3.0
+               , bytestring
+               , clock
+               , containers
+               , cryptonite
+               , ghc-prim
+               , hashable
+               , integer-gmp
+               , memory
+               , path                    > 0.6.0
+               , path-io
+               , safe-exceptions
+               , scientific
+               , text
+               , time
+               , unix
+               , unordered-containers
+               , vector