From 0835d1b7811c38f8e4f48ae3772d26fccd70c217 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Fri, 3 Mar 2023 10:17:28 +0100
Subject: add runtime version information

---
 .github/workflows/ci.yml |  9 +++++++++
 pyproject.toml           |  7 +++++--
 vk/mutuals.py            |  3 +++
 vk/tracking/sessions.py  |  3 +++
 vk/tracking/status.py    |  5 ++++-
 vk/version.py            | 15 +++++++++++++++
 6 files changed, 39 insertions(+), 3 deletions(-)
 create mode 100644 vk/version.py

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 27164ea..a564a9b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,12 +27,19 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
           python-version: '${{ matrix.python-version }}'
       - name: 'Install package & dependencies'
         run: pip install -q -e .
+      - name: Check that scripts are runnable
+        run: |
+          vk-mutuals --version
+          vk-status --version
+          vk-sessions --version
       - name: Run tests
         run: ./test/bin/main.sh
 
@@ -43,6 +50,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/pyproject.toml b/pyproject.toml
index e317174..d70286e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,17 +1,18 @@
 [build-system]
-requires = ["setuptools>=61.0"]
+requires = ["setuptools>=61.0", "setuptools-scm"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "vk_scripts"
 description = "Scripts to stalk people on VK"
 license = {text = "MIT"}
-version = "1.0.2"
+dynamic = ["version"]
 authors = [{name = "Egor Tensin", email = "Egor.Tensin@gmail.com"}]
 readme = "README.md"
 requires-python = ">=3.4"
 
 dependencies = [
+    'importlib-metadata ~= 4.0 ; python_version < "3.8"',
     "matplotlib",
 ]
 
@@ -28,3 +29,5 @@ classifiers = [
 vk-sessions = "vk.tracking.sessions:main"
 vk-status = "vk.tracking.status:main"
 vk-mutuals = "vk.mutuals:main"
+
+[tool.setuptools_scm]
diff --git a/vk/mutuals.py b/vk/mutuals.py
index 644baf8..10dcc2e 100644
--- a/vk/mutuals.py
+++ b/vk/mutuals.py
@@ -12,6 +12,7 @@ import sys
 from vk.api import API
 from vk.user import UserField
 from vk.utils import io
+import vk.version
 
 
 _OUTPUT_USER_FIELDS = UserField.UID, UserField.FIRST_NAME, UserField.LAST_NAME
@@ -84,6 +85,8 @@ def _parse_args(args=None):
     parser = argparse.ArgumentParser(
         description='Learn who your ex and her new boyfriend are both friends with.')
 
+    vk.version.add_to_arg_parser(parser)
+
     parser.add_argument('uids', metavar='UID', nargs='+',
                         help='user IDs or "screen names"')
     parser.add_argument('-f', '--format', dest='out_fmt',
diff --git a/vk/tracking/sessions.py b/vk/tracking/sessions.py
index 278a004..4b6fd66 100644
--- a/vk/tracking/sessions.py
+++ b/vk/tracking/sessions.py
@@ -15,6 +15,7 @@ from vk.tracking.db import Format as DatabaseFormat
 from vk.user import UserField
 from vk.utils.bar_chart import BarChartBuilder
 from vk.utils import io
+import vk.version
 
 
 class Weekday(Enum):
@@ -436,6 +437,8 @@ def _parse_args(args=None):
     parser = argparse.ArgumentParser(
         description='View/visualize the amount of time people spend online.')
 
+    vk.version.add_to_arg_parser(parser)
+
     parser.add_argument('db_path', metavar='input', nargs='?',
                         help='database file path (standard input by default)')
     parser.add_argument('out_path', metavar='output', nargs='?',
diff --git a/vk/tracking/status.py b/vk/tracking/status.py
index 0a02413..0dd5e42 100644
--- a/vk/tracking/status.py
+++ b/vk/tracking/status.py
@@ -12,8 +12,9 @@ import sys
 
 from vk.api import API
 import vk.error
-from vk.user import UserField
 from vk.tracking.db import Format as DatabaseFormat
+from vk.user import UserField
+import vk.version
 
 
 class StatusTracker:
@@ -171,6 +172,8 @@ def _parse_args(args=None):
     parser = argparse.ArgumentParser(
         description='Track when people go online/offline.')
 
+    vk.version.add_to_arg_parser(parser)
+
     parser.add_argument('uids', metavar='UID', nargs='+',
                         help='user IDs or "screen names"')
     parser.add_argument('-t', '--timeout', metavar='SECONDS',
diff --git a/vk/version.py b/vk/version.py
new file mode 100644
index 0000000..6843bf4
--- /dev/null
+++ b/vk/version.py
@@ -0,0 +1,15 @@
+try:
+    import importlib.metadata as metadata
+except ImportError:
+    import importlib_metadata as metadata
+
+
+try:
+    __version__ = metadata.version('vk_scripts')
+except Exception:
+    __version__ = 'unknown'
+
+
+def add_to_arg_parser(parser):
+    parser.add_argument('--version', '-V', action='version',
+                        version=f'%(prog)s {__version__}')
-- 
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