cd: build snap package

.github/workflows/cd.yml

@@ -158,3 +158,11 @@ jobs:
           context: .
           push: true
           tags: backblaze/b2:${{ steps.build.outputs.version }}
+
+  snap-release:
+    if: ${{ vars.B2_DEBIAN_BUCKET_UPLOAD }}
+    name: Build Snap Package
+    uses: ./.github/workflows/cd_snap.yml
+    secrets: inherit
+    with:
+      b2-upload-bucket: ${{ vars.B2_DEBIAN_BUCKET_UPLOAD }}

.github/workflows/cd_snap.yml

@@ -0,0 +1,28 @@
+name: Snap Package Continuous Delivery
+
+on:
+  workflow_call:
+    inputs:
+      b2-upload-bucket:
+        required: true
+        type: string
+
+jobs:
+  build-deb:
+    env:
+      B2_APPLICATION_KEY_ID: '${{ secrets.B2_DEBIAN_APPLICATION_KEY_ID }}'
+      B2_APPLICATION_KEY: '${{ secrets.B2_DEBIAN_APPLICATION_KEY }}'
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - uses: snapcore/action-build@v1
+        id: snapcraft
+
+      - name: Upload to B2
+        run: |
+          pip install -U wheel b2
+          b2 upload_file ${{ inputs.b2-upload-bucket }} ${{ steps.snapcraft.outputs.snap }} ${{ steps.snapcraft.outputs.snap }}

.gitignore

@@ -14,3 +14,7 @@ venv
 doc/source/main_help.rst
 Dockerfile
 b2/licenses_output.txt
+# snap package
+parts
+prime
+stage

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 requires-python = ">=3.7"
 name = "b2"
-version = "0.0.0"  # this is wrong, but setuptools>61 insists its here
+dynamic = ["version"]
 
 [tool.ruff]
 # TODO add D
@@ -17,3 +17,11 @@ line-length = 100
 [tool.ruff.per-file-ignores]
 "__init__.py" = ["F401"]
 "test/**" = ["D", "F403", "F405"]
+
+[build-system]
+requires = ["setuptools>=45", "setuptools_scm[toml]>=6.2"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+version_scheme = "post-release"
+

setup.py

@@ -112,7 +112,7 @@ def read_requirements(extra=None):
         'doc': read_requirements('doc'),
         'license': read_requirements('license'),
     },
-    setup_requires=['setuptools_scm<6.0'],
+    setup_requires=['setuptools_scm'],
     use_scm_version=True,
 
     # If there are data files included in your packages that need to be

snap/snapcraft.yaml

@@ -0,0 +1,37 @@
+name: backblaze-b2
+base: core22
+version: git
+summary: This program provides command-line access to the B2 service.
+description: The command-line tool that gives easy access to all of the capabilities of B2 Cloud Storage.
+adopt-info: backblaze-b2
+
+grade: stable
+confinement: strict
+
+architectures:
+  - build-on: arm64
+  - build-on: amd64
+
+apps:
+  backblaze-b2:
+    command: bin/b2
+    aliases: [ backblaze-b2 ]
+    plugs: [ network ]
+    environment:
+      PYTHONPATH: $PYTHONPATH:$SNAP/lib/python3.11/site-packages
+
+parts:
+  backblaze-b2:
+    source: .
+    source-type: git
+    plugin: python
+    build-packages:
+      - python3-setuptools
+      - python3-setuptools-scm
+
+    override-pull: |
+      snapcraftctl pull
+      # remove pyproject.toml until _fully_ migrated to it
+      mv pyproject.toml pyproject.toml_snapignore || true
+      version="$(python3 setup.py --version)"
+      craftctl set version=$version